Relevant bibliographies by topics / Acrylonitrile Analysis

Academic literature on the topic 'Acrylonitrile Analysis'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Acrylonitrile Analysis"

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Yasinee, Wuttison, Thongyai Supakanok, Wacharawichanant Sirirat, and Piyasan Praserthdam. "Study on the Properties of Blends between Acrylonitrile-Butadiene Rubber and Acrylonitrile-Butadiene-Styrene or Poly(Styrene-co-Acrylonitrile)." Advanced Materials Research 812 (September 2013): 192–97. http://dx.doi.org/10.4028/www.scientific.net/amr.812.192.

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Acrylonitrile-butadiene rubber (NBR) or nitrile rubber is an unsaturated copolymer of butadiene and acrylonitrile. NBR has been widely used for fuel hoses, seals and gaskets due to its excellent oil and fuel resistance. Aiming to develop NBR which has resistance to oxygenated solvent, NBR with acrylonitrile content of 34 wt%, was blended with Acrylonitrile-butadiene-styrene (ABS) and Poly (Styrene-co-Acrylonitrile) (SAN) as binary polymer systems. The NBR/ABS and SAN blends were prepared by mechanical blending in the composition of 80/20, 70/30 and 60/40 w/w. The effects of ABS or SAN content on mechanical, morphological and thermal properties were investigated and compared with commercials NBR. Mechanical properties were determined using the tensile testing machine. The morphologies of polymer blends were investigated using scanning electron microscope (SEM). The thermal properties were examined using differential scanning calorimeter (DSC), thermal gravimetric analysis (TGA) and dynamic mechanical analysis (DMA). It has been found that percent compatibility of ABS and SAN into NBR rich phase are 2.69 and 1.53 wt% respectively.
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Long, G., M. E. Meek, and D. Koniecki. "ACRYLONITRILE: HAZARD CHARACTERIZATION AND EXPOSURE-RESPONSE ANALYSIS." Journal of Environmental Science and Health, Part C 19, no. 1 (May 31, 2001): 45–75. http://dx.doi.org/10.1081/gnc-100103580.

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Jeżewska, Anna. "Akrylonitryl. Metoda oznaczania w powietrzu na stanowiskach pracy Anna Jeżewska, Agnieszka Woźnica." Podstawy i Metody Oceny Środowiska Pracy 37, no. 4 (December 29, 2021): 131–41. http://dx.doi.org/10.54215/pimosp/3.110.2021.

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Acrylonitrile (AN) is highly flammable, colorless liquid with an unpleasant odor. Acrylonitrile is used in industry to produce polyacrylonitrile (PAN) and its copolymers. Acrylonitrile can cause cancer. The aim of this study was to develop a method for determining acrylonitrile in workplace air which will allow determination of its concentrations at the level of 0.1 mg/m3 . The method was based on adsorption of acrylonitrile vapors on activated carbon, desorption with acetone solution in carbon disulfide and chromatographic analysis of the obtained solution. The study was performed using a gas chromatograph (GC) with a flame ionization detector (FID) equipped with a DB-VRX capillary column (60 m × 0.25 mm, 1.4 µm). The method was validated in accordance with the requirements of Standard No. EN 482. The method allows the determination of acrylonitrile in workplace air at the concentration range from 0.1 to 2 mg/m3. The method for determining acrylonitrile has been recorded in the form of an analytical procedure (see Appendix). This article discusses the problems of occupational safety and health, which are covered by health sciences and environmental engineering.
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Hegazi, Elham M., HM Eyssa, and AA Abd El-Megeed. "Effect of nanofiller on the ageing of rubber seal materials under gamma irradiation." Journal of Composite Materials 53, no. 15 (January 11, 2019): 2065–76. http://dx.doi.org/10.1177/0021998318819178.

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The effect of high gamma irradiation and nanosilica on the structure and mechanical properties of the acrylonitrile butadiene rubber seal materials was investigated in this study. Acrylonitrile butadiene rubber nanocomposites containing (25, 50 and 75 phr) unmodified and modified nanosilica were irradiated at different doses (0, 0.2, 0.4, 0.6, 0.8, 1 MGy). The dispersion of nanosilica-based filler in acrylonitrile butadiene rubber was investigated by scanning electron microscope. Fourier-transform infrared analysis, swelling, crosslinking, mechanical and the thermal resistance properties of acrylonitrile butadiene rubber nanocomposites were investigated. From the results, it is clear that with modified nanosilica, acrylonitrile butadiene rubber phase crosslinking is accelerated with increasing γ-doses compared to unmodified nanosilica and seems to enhance physical, mechanical and the thermal properties of the rubber. The surface of the acrylonitrile butadiene rubber nanocomposites was investigated by scanning electron microscope and found better dispersion for acrylonitrile butadiene rubber with 25 phr of modified nanosilica at 0.6 MGy. The compression set of the results indicated that 25 phr modified nanosilica has best properties under high gamma irradiation.
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Poustková, I., J. Poustka, L. Babička, and J. Dobiáš. "Acrylonitrile in food contact materials – two different legislative approaches: comparison of direct determination with indirect evaluation using migration into food simulants." Czech Journal of Food Sciences 25, No. 5 (January 7, 2008): 265–71. http://dx.doi.org/10.17221/678-cjfs.

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In this study, the comparison was carried out of two different legislative approaches for acrylonitrile content assessment in food contact materials based on the former analysis using gas chromatography with nitrogen-phosphorous detection, and the recent evaluation using acrylonitrile migration into food simulants – distilled water, 3% acetic acid, 10% ethanol, and 95% ethanol, based on liquid chromatography with ultraviolet detection. Different samples were tested: 7 kitchen device parts and 16 acrylonitrile-butadiene-styrene and styrene-acrylonitrile granulates. The level of acrylonitrile content in founded polymer mass was in the range from 0.4 to 25.1 mg/kg in the case of kitchen device parts, and from 6.2 to 283.9 mg/kg in the case of granulates. The highest migration of acrylonitrile in food simulants for kitchen device parts and granulates was found to be 5.2 µg/dm<sup>2</sup> (3% acetic acid) and 9.6 µg/dm<sup>2</sup> (95% ethanol), respectively. A correlation of the results obtained by two different methodologies was tested, but no evident relation was found between acrylonitrile content in the polymer mass and its migrations into food simulants. Based on the realised experiments, no equivalence of the approaches compared was proved.
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Moldoveanu, SC. "Analysis of Acrylonitrile and alpha-Methacrylonitrile in Vapor Phase of Mainstream Cigarette Smoke Using a Charcoal Trap for Collection." Beiträge zur Tabakforschung International/Contributions to Tobacco Research 24, no. 3 (November 1, 2010): 145–56. http://dx.doi.org/10.2478/cttr-2013-0892.

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AbstractA simple procedure for the collection of vapor phase (VP) of mainstream cigarette smoke for analysis has been developed. This procedure consists of collecting the VP on a commercial charcoal trap (ORBO™-32) followed by dissolution in acetone. The acetone extract can be analyzed by a gas chromatography/mass spectrometry (GC/MS) technique. A qualitative analysis of the collected VP has been performed for 3R4F Kentucky reference cigarette, allowing the identification of 138 compounds, some compounds being present in both VP and in particulate phase (PP) of cigarette smoke. A quantitative analysis method for acrylonitrile and α-methacrylonitrile (2-methyl-2-propenenitrile) was also developed, and the level of these compounds in 15 different cigarette brands was measured. Acrylonitrile quantitation was selected since this compound in smoke poses significant health related issues. α-Methacrylonitrile quantitation was selected due to the similar structure of this compound with acrylonitrile. The analyzed cigarettes were several Kentucky reference cigarettes including 1R5F, 2R4F, 3R4F, 2R1F, and 1R3F, several King Size (KS) commercial cigarettes from the US market including Basic Non Filter (NF), Basic Ultra Lights (UL), Newport, Marlboro (Red), Marlboro Menthol, Camel Filter, Camel Lights, Camel Ultra Lights, and two herbal cigarettes, Ecstasy and Dreams. The results for acrylonitrile were in very good agreement with data reported in the literature for 2R4F and 1R5F cigarettes. The levels of α-methacrylonitrile were not previously reported. The correlation between the levels of acrylonitrile and of α-methacrylonitrile with the (wet) total particulate matter (TPM) was evaluated. Although the levels of acrylonitrile and of α-methacrylonitrile in mainstream smoke depend on the TPM values, the correlation is not very strong, indicating that the nature of the cigarette blend and possible other factors in cigarette construction also influence their levels in smoke. The collection method used in this study allows the subsequent dissolution of VP in a much smaller volume of solvent compared to other methods that use impingers, allows the use of standard GC/MS autosamplers for liquid injection and simple addition of internal standards compared to the methods that use gas bags, and allows a simple and immediate collection of VP as it leaves the Cambridge filter pad. These characteristics represent significant advantages versus other methods commonly used for VP analysis.
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Nowicki, H. G., and B. Nowrcki. "Use of Commercial Acrylonitrile Standard for Wastewater Analysis." Analytical Letters 19, no. 21-22 (January 1986): 2095–101. http://dx.doi.org/10.1080/00032718608080868.

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Chang, Shing-Hwa. "Thermal analysis of acrylonitrile copolymers containing methyl acrylate." Journal of Applied Polymer Science 54, no. 3 (October 17, 1994): 405–7. http://dx.doi.org/10.1002/app.1994.070540314.

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Suresh, Sunil S., Smita Mohanty, and Sanjay K. Nayak. "Influence of acrylonitrile butadiene rubber on recyclability of blends prepared from poly(vinyl chloride) and poly(methyl methacrylate)." Waste Management & Research: The Journal for a Sustainable Circular Economy 36, no. 6 (May 4, 2018): 495–504. http://dx.doi.org/10.1177/0734242x18771164.

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The current investigation deals with the recycling possibilities of poly(vinyl chloride) and poly(methyl methacrylate) in the presence of acrylonitrile butadiene rubber. Recycled blends of poly(vinyl chloride)/poly(methyl methacrylate) are successfully formed from the plastic constituents, those are recovered from waste computer products. However, lower impact performance of the blend and lower stability of the poly(vinyl chloride) phase in the recycled blend restricts its further usage in industrial purposes. Therefore, effective utilisation acrylonitrile butadiene rubber in a recycled blend was considered for improving mechanical and thermal performance. Incorporation of acrylonitrile butadiene rubber resulted in the improvement in impact performance as well as elongation-at-break of the recycled blend. The optimum impact performance was found in the blend with 9 wt% acrylonitrile butadiene rubber, which shows 363% of enhancement as compared with its parent blend. Moreover, incorporated acrylonitrile butadiene rubber also stabilises the poly(vinyl chloride) phase present in the recycled blend, similarly Fourier transform infrared spectroscopy studies indicate the interactions of various functionalities present in the recycled blend and acrylonitrile butadiene rubber. In addition to this, thermogravimetric analysis indicates the improvement in the thermal stability of the recycled blend after the addition of acrylonitrile butadiene rubber into it. The existence of partial miscibility in the recycled blend was identified using differential scanning calorimetry and scanning electron microscopy.
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Zhang, X., and V. K. Berry. "Quantitative image analysis of polymer blends." Proceedings, annual meeting, Electron Microscopy Society of America 52 (1994): 920–21. http://dx.doi.org/10.1017/s0424820100172334.

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Quantitative image analysis is important in understanding the role of microstructure in polymer blend properties, as revealed by the TEM. This paper presents an example of the application of the image analysis method to the study of structure/property relationship of an acrylonitrile-butadiene-styrene (ABS) polymer.ABS is a rubber-toughened two-phase polymer blend. As shown in Figure 1, the microstructure of ABSconsists of small rubber particles embedded in a styrene-acrylonitrile copolymer (SAN) matrix. The morphologies of these blends, which depend on the polymerization conditions, play a key role to the overall physical and mechanical properties of the blends. The quantitative characterization of the rubber phase involves measuring its volume fraction as well as the particle size distribution.Four ABS samples, available commercially, with different levels of styrene butadiene rubber (SBR),were used in this study. The samples were block stained, using osmium tctroxide (OsO4) solution, and thin sectioned in an ultramicrotome.The thin sections were examined in a JEM-100CX II TEM, operated at 60KV. The representative images were acquired on a SEMICAPS Imaging System using a GATAN CCD TV rate camera.
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Dissertations / Theses on the topic "Acrylonitrile Analysis"

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Sparks, William Robert. "Synthesis and characterization of poly(acrylonitrile-CO-vinyl phosphonate) carbon fiber precursors." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/9164.

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Sargent, Maureen Ann. "FT-IR analysis of the photooxidation and sequence distribution of styrene-acrylonitrile copolymers." Case Western Reserve University School of Graduate Studies / OhioLINK, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=case1055946040.

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Bozkir, Selcuk. "Preparation And Performance Analysis Of Acrylonitrile Based Nanocomposite Membranes For Chromium (vi) Removal From Aqueous Solutions." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612707/index.pdf.

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Acrylonitrile were copolymerized with 2-ethylhexyl acrylate and hexyl acrylate via one step emulsion polymerization using ammonium persulfate (initiator), 1-dodecanthiol (chain transfer agent) and DOWFAX 8390 (surfactant) in the presence of water at about 68 0C. Poly (acrylonitrile-2ethylhexyl acrylate) and poly (acrylonitrile-hexyl acrylate) copolymers with three different comonomer composition (8, 12 and 16 molar percent) were prepared. FTIR and 1H-NMR were used in order to clarify the chemical structure of copolymers. The comonomer amount incorporated into copolymers was determined by using 1H-NMR spectra. The thermal behavior of copolymers was determined by DSC and TGA. Molecular weights of copolymers were determined by intrinsic viscosity (IV) measurements. IV measurements revealed that both poly (acrylonitrile-2ethylhexyl acrylate) and poly (acrylonitrile-hexyl acrylate) have sufficient molecular weight to form nanoporous filtration membranes. Nanoporous filtration membranes were prepared and tested for chromium (IV) removal. It was observed that chromium (VI) rejections of nanoporous filtration membrane were highly dependent on the concentration and the pH of the solutions. Almost complete removal (99, 9 percent Cr (VI)) rejection was achieved at pHs 2, 5 and 7 for solution containing 50 ppm, chromium (VI) with permeate flux within a range from 177 to 150 L/m2h at 689.5 kPa. Also, chemical structure, swelling ratios, sheet resistivity and fracture morphologies of the nanoporous filtration membrane were studied. It should be noted that the nanoporous filtration membranes were fouling resistant.
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Wiles, Kenton Broyhill. "Determination of Reactivity Ratios for Acrylonitrile/Methyl Acrylate Radical Copolymerization Via Nonlinear Methodologies Using Real Time FTIR." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34888.

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Reactivity ratios for the homogeneous free radical initiated copolymerization of acrylonitrile and methyl acrylate were measured by NMR on isolated, low conversion copolymers and by real time in situ FTIR. The system utilized azobisisobutyronitrile (AIBN) initiator in dimethyl formamide (DMF) at 62°. The FTIR technique allowed rapid generation of extensive copolymer compositions, which permitted application of nonlinear least squares methodology for the first time to this copolymer system. Thus, reactivity ratios at the 95% confidence level were determined to be 1.29 ± 0.2 and 0.96 ± 0.2 for acrylonitrile and methyl acrylate, respectively. The results are useful for the development of acrylonitrile (<90%) melt processable copolymer fibers and films, which could include precursors for carbon fibers.
Master of Science
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Woo, Jungwon. "Bulk and Surface Characteristics of Model M1 and M2 Phase Catalysts for Propane Ammoxidation to Acrylonitrile." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1445615206.

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Jančaříková, Marie. "Testování pryžových těsnících prvků podrobených různým vnějším vlivům." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-240540.

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Diploma thesis studies the effect of temperature (75 and 105 °C) and the effect of 3 kinds of liquids (silicone and hydraulic oil and coolant) at room temperature and at 105 °C on change of the structure of 3 species butadiene-acrylonitrile (NBR) seals (o-ring and two types of bolts). The seals are inspected by the thermogravimetric analysis, differential scanning calorimetry and infrared spectroscopy, the influence of 105 °C on the o-rings is also evaluated in terms of changes in tensile properties. The greatest changes in the composition and structure are observed on o-rings particularly due to temperature of 105 °C, there was a significant reduction in dilatability and an increase in stiffness and glass transition temperature. The root cause is the surface and centre additive decomposition and oxidation. The bolts have suffered from decomposition of the protective surface layer and the additives in the centre, structural change was minor. Exposure to 75 °C has resulted in a gradual loss of low molecular weight substances. Liquids at room temperature didn‘t affect the structure of the seals, at 105 °C it caused a loss of weight due to decomposition of the protective surface layer and release of additives and the products of their decomposition. Results showed that the common use of the NBR seals at 105 °C is unsuitable, at 75 °C it leads to gradual changes, loss in mechanical and sealing properties.
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KIYAN, LUDMILA de Y. P. "Aplicação da radiação gama para incorporação do pó de borracha em formulações de borracha EPDM e nitrílica." reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23177.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2014-12-19T17:14:06Z No. of bitstreams: 0
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Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Mathieu, Didier. "Vibrations moléculaires de composés nitriles : un révélateur de la structure des polyacrylonitriles." Grenoble 1, 1993. http://www.theses.fr/1993GRE10115.

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L'originalite de ce travail reside dans l'utilisation des methodes ab initio de la chimie quantique concues essentiellement pour l'etude de molecules simples et isolees, en vue d'interpreter les spectres ir du polyacrylonitrile (pan) et d'en tirer des informations concernant la structure moleculaire d'echantillons de ce polymere. Apres verification de la viabilite de cette approche et determination d'un niveau theorique constituant un bon compromis entre qualite des resultats et temps de calcul, on etablit qu'il est possible d'etudier l'influence de la structure du pan sur son spectre ir en considerant des oligomeres modeles d'acrylonitrile, en l'occurrence des pentameres. Contrairement aux frequences, les intensites dependent beaucoup de la tacticite et de la conformation. Si on considere les conformations les plus stables pour des chaines purement isotactiques et syndiotactiques, les resultats theoriques prevoient notamment la disparition de la bande a 1250 cm-1 dans le cas d'une chaine hypothetique purement isotactique. Ils soulignent egalement le role important de la conformation et precisent l'origine des differences observees experimentalement vers 1250-1230 cm-1, qui serait de nature vibrationnelle. Les spectres ab initio d'agregats d'acetonitrile mettent en evidence l'effet des interactions entre molecules, qui expliquent en partie la tres forte intensite de la bande (cn) du pan. De plus, les donnees it theoriques confirment la preponderance des arrangements antiparalleles pressentie sur la base du critere energetique. Enfin, l'attribution habituelle de la bande a 2190 cm-1 observee pour certains types de pan a des structures iminonitriles est revisee: cette bande serait due en fait a des defauts de reticulation a type enaminonitriles
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Bazzi, Ali, and Andreas Angelou. "Simulation of the anisotropic material properties in polymers obtained in thermal forming process." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Produktutveckling, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-40792.

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In an attempt to improve the quality in finite element analysis of thermoformed components, a method for predicting the thickness distribution is presented. The strain induced anisotropic material behaviour in the amorphous polymers of concern is also taken into account in the method. The method comprises of obtaining raw material data from experiments, followed by a simulation of the vacuum thermoforming process where hyperelastic material behaviour is assumed. The theory of hyperelasticity that was applied was based on the Ogden model and implemented in the FE-software LS-DYNA. Material behaviour from thermoformed prototypes is examined by experiments and implemented together with the mapped results from the thermoforming simulation in a succeeding FE-model. For the latter, the three-parameter Barlat model was suggested, giving the possibility to account for anisotropic material behaviour based on an initial plastic strain.
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SALES, JORGE N. DE. "Estudo do efeito da incorporação das argilas branca de Cubati e Cloisite Na® nas propriedades do termoplástico acrilonitrila butadieno estireno submetido à radiação ionizante." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/27128.

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O polímero Acrilonitrila Butadieno Estireno (ABS) é um dos polímeros mais versáteis disponíveis nos dias de hoje. Atualmente o Brasil não produz o ABS, o que limita a indústria brasileira de plásticos a utilizar as variações deste polímero importadas, ofertadas no mercado nacional por distribuidores locais. Este estudo avaliou os efeitos da adição das argilas Cloisite Na® e Branca de Cubati na matriz polimérica ABS e também os efeitos decorrentes do tratamento por radiação ionizante no ABS e nos compósitos ABS/Argila como formas de modificação de um ABS convencional. Visando avaliar a diferença entre uma argila organofílica e uma organofóbica, a argila Branca de Cubati foi organofilizada e a argila Cloisite Na® foi utilizada como recebida. Foram preparados, utilizando uma extrusora dupla rosca, concentrados a 30 % em massa da argila Branca de Cubati, previamente organofilizada e da Cloisite Na® em Estireno Acrilonitrila (SAN). Os concentrados foram adicionados ao ABS a 1, 3 e 5 % em massa das argilas e foram injetados corpos de prova. Parte dos corpos de prova foi submetida à irradiação por feixe de elétrons à uma dose de 600 kGy. Os compósitos irradiados e não irradiados foram caracterizados por meio de ensaios de resistência a tração, resistência a flexão, resistência ao impacto, temperatura de distorção térmica, ponto de amolecimento Vicat, análise de termogravimétrica (TG), difração de raios X e microscopia eletrônica de varredura com emissão de campo (MEVFEG) e a correlação entre os resultados foi discutida. Foram observadas melhorias nas propriedades mecânicas, exceto resistência ao impacto, nos materiais aditivados com as argilas, sendo os melhores resultados obtidos com a argila Branca de Cubati. O tratamento por radiação ionizante favoreceu o processo de reticulação do ABS.
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
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Books on the topic "Acrylonitrile Analysis"

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Occupational Medicine and Hygiene Laboratory. Acrylonitrile in air: Laboratory method using porous polymer adsorption tubes, and thermal desorption with gas chromatographic analysis. Bootle: Health and Safety Executive, 1985.

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Book chapters on the topic "Acrylonitrile Analysis"

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Patnaik, Pradyot. "Acrylonitrile." In Handbook of Environmental Analysis, 383–84. Third edition. | Boca Raton : Taylor & Francis, CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315151946-68.

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Atonal-Sánchez, Juan, Juan Alfonso Beltrán-Fernández, Luis Héctor Hernández-Gómez, Luz Yazmin-Villagran, Juan Alejandro Flores-Campos, Adolfo López-Lievano, and Pablo Moreno-Garibaldi. "Termomechanical Analysis of 3D Printing Specimens (Acrylonitrile Butadiene Styrene)." In Engineering Design Applications, 237–53. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-79005-3_17.

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Wang, Qi. "Response Surface Methodology Analysis of Biodegradation of Acrylonitrile in Bioreactor." In Communications in Computer and Information Science, 31–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22418-8_5.

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Glöckner, G., J. H. M. van den Berg, N. L. J. Meijerink, and Th G. Scholte. "Characterization of Copolymers Chromatographic Cross-Fractionation Analysis of Styrene-Acrylonitrile Copolymers." In Integration of Fundamental Polymer Science and Technology, 85–98. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4185-4_9.

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Mancini, Luca, and Emília Valença Ferreira de Aragão. "A Computational Analysis of the Reaction of Atomic Oxygen O($$^3$$P) with Acrylonitrile." In Computational Science and Its Applications – ICCSA 2021, 339–50. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-87016-4_25.

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Kopal, Ivan, Juliána Vršková, Marta Harničárová, Ján Valíček, Darina Ondrušová, Ján Krmela, and Peter Hybler. "ATR-FTIR Analysis of Melamine Resin, Phenol-Formaldehyde Resin and Acrylonitrile-Butadiene Rubber Blend Modified by High-Energy Electron Beam Radiation." In Advanced Structured Materials, 295–307. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39062-4_24.

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Sivabalakrishnan, R., M. Dineshkumar, B. P. Sharon, P. Naveenkumar, and S. Vignesh. "Design and Fabrication of 3D-Printed Acrylonitrile Butadiene Styrene (ABS) Dam Automation Structure with Integrated Flood Monitoring System Using Data Analysis and Computation Techniques." In Springer Proceedings in Materials, 137–45. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8319-3_15.

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"Acrylonitrile." In Handbook of Environmental Analysis, 475–76. CRC Press, 2010. http://dx.doi.org/10.1201/b10505-66.

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"Acrylonitrile." In Handbook of Environmental Analysis. CRC Press, 1997. http://dx.doi.org/10.1201/9781420050608.ch3.5.

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"Chemical Attack of Acrylonitrile-Butadiene-Styrene Grips." In ASM Failure Analysis Case Histories: Household Products and Consumer Goods. ASM International, 2019. http://dx.doi.org/10.31399/asm.fach.homegoods.c0090427.

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Conference papers on the topic "Acrylonitrile Analysis"

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Bibb, Micah, Margaret Nowicki, Kenneth McDonald, and Nicole Zander. "Strength and Quality of Recycled Acrylonitrile Butadiene Styrene (ABS)." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70583.

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Abstract Many times, when 3D printed parts exceed their useful life or when there is a mistake in the manufacturing process, that 3D printed material is thrown away. To avoid such waste, that material can be shredded up and re-extruded into useable filament. There are some concerns over the degradation of the material as it is recycled and reprinted. In this study, the strength and quality of ABS plastic as it is recycled and reprinted has been investigated. The ABS at each stage of recycling was printed into “dog bone” test samples for mechanical testing. The tensile strength was measured using an MTS Universal Testing Machine. Following the completion of these tests, the chemical properties of the samples were tested using thermogravimetric analysis and differential scanning calorimetry. With each recycle, the tensile load capabilities of the ABS dropped by an average of 5.93%; however, chemical tests showed no significant degradation in thermal strength.
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Le, Xiaobin, Rami Akouri, Anthony Latassa, Brett Passemato, and Ryan Wales. "Mechanical Property Testing and Analysis of 3D Printing Objects." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65067.

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3D printing known as additive manufacturing has been widely used in academics and industries to make various 3D objects for various applications. The strength of the 3D printing parts is different from its original material strength due to this additive manufacturing technique. The 3D printing parts should be treated as anisotropic materials. However, the information of mechanical property such as the ultimate strength of 3D printing parts is very limited. There is little information about the mechanical property of 3D printing parts at different print angles. This research was focused on exploring the mechanical properties of 3D printing objects. The tensile test specimen of two different materials: acrylonitrile butadiene styrene-electrostatic dissipative (ABS-ESD) and Nylon 12 were printed at the 5 different print angles through the Fortus 450mc 3D printer. Tensile test results, data analysis, detailed discussion and the empirical formula of the tensile strength of 3D printing objects vs different print angles will be presented.
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Seif, Mohamed. "Failure Analysis and Quality Assessment of 3D Printed ABS Parts." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6578.

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The work aims to study the performance of 3D-printed parts under In-Plane and Out-of-Plane shear stresses. The test articles are made from Acrylonitrile Butadiene Styrene (ABS) by the 3D printing process (Fused Deposition Modeling - FDM). The testing procedures have been performed according to the ASTM D3846–02 method for defining the In-Plane shear strength while the ASTM D5379 method has been used for determining the Out-of-Plane shear properties. The statistical distribution functions were determined for both test data. Failure analysis has been performed for determining the Probability Density Function, the Survival Function, and the Hazard Function. The probability of failure at a certain stress level has been determined. A comparison between parts manufactured using the 3D printer and the commercially manufacturing process has been performed using the nonparametric two-sample Kolmogorov-Smirnov normality test of the underlying distributions and also supported by Mann-Whitney test.
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Fetecau, Catalin, Felicia Stan, Nicoleta Violeta Cristea, and Laurentiu Ionut Sandu. "An Analysis of Interfacial Adhesion Between TPU/MWCNT Composites and ABS Substrate by Over Injection Molding." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8571.

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In this work, the advantages of Thermoplastic Polyurethane (TPU) filled with multi-walled carbon nanotubes (MWCNTs) were combined with those of the over injection molding process in order to obtain two-component (2k) structures with very different but high mechanical and electrical properties. TPU/MWCNT composites with different MWCNTs wt.% were over-molded onto Acrylonitrile Butadiene Styrene (ABS) substrates, under different processing conditions, and the adhesion was assessed by T-peel tests at room temperature. Since adhesion is also related to flow behavior, the rheological properties were studied with a capillary rheometer at shear rates similar to those of the injection molding process (102∼104s−1). Experimental results indicated that the most effective way to control the adhesion between the ABS substrate and the over-molded TPU/MWCNT composite is to increase the melt temperature. The addition of carbon nanotubes improves adhesion in the vicinity of 0.5 wt.% MWCNTs.
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Billah, Kazi Md Masum, Ahmed Arabi Hassen, Aslan Nasirov, Gregory Haye, Jesse Heineman, Vlastimil Kunc, and Seokpum Kim. "Thermal Analysis of Large Area Additive Manufacturing Resistance Heating Composites for Out of Oven/Autoclave Applications." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23730.

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Abstract Additive Manufacturing (AM) of carbon fiber (CF) reinforced composite has received growing attention because of the design flexibility, superior mechanical properties, improved thermal properties, and weight reduction. Autoclave tooling was proven to be a successful application for large scale AM technology. The capital cost, and cost associated with heating, and cycle time in a conventional autoclave process is relatively high. Thus, an innovative design of AM mold with an efficient heating scheme is essential. This study represents an innovative method of the resistive heating of composite molds which does not require a room size oven for heating during the curing processing. Therefore, it has the potential to reduce the operating cost drastically. For the design validation and feasibility study, we performed a numerical analysis of the wire embedded and AM mold parts. The goal of this study is to determine and optimize the thermal behavior of the printed mold with embedded wire technology. It is anticipated that the larger distance between the embedded wires along the printing direction (z-direction) increase the cold spot, on the other hand, a close distance of the wire can create the unwanted localize heating, thus melting. Constant thermal properties of the 20 wt.% short CF reinforced acrylonitrile butadiene styrene (ABS) was used for the simulation purpose. Thermal characterization was set to 100°C to avoid the thermal deformation or bulging on the part surface.
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Boparai, Kamaljit Singh, Gurpartap Singh, Rupinder Singh, and Sarabjit Singh. "Investigations for Wax Coated 3D Printed Hybrid Patterns for Partial Dentures." In ASME 2019 14th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/msec2019-2701.

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Abstract In this work, 3D printed master patterns of acrylonitrile butadiene styrene (ABS) thermoplastic material have been used for the preparation of Ni-Cr based functional prototypes as partial dentures (PD). The study started with patient specific three dimensional (3D), CAD data (fetched through scanning). This data was used for preparation of .STL file for printing of master patterns on fused deposition modeling (FDM) setup. The 3D printed master patterns were further wax coated to reduce the surface irregularities (as cost effective post processing technique). The hybrid patterns were subjected to investment casting for the preparation of Ni-Cr based PD. The finally prepared functional prototypes as PD were optimized for dimensional accuracy, surface finish and surface hardness as responses. The results are visualized and supported by photomicrographs and in-vitro analysis.
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Dundar, Mehmet Akif, and Emmanuel Ayorinde. "Plate Vibration and Geometry Study of Impact-Control ABS." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66722.

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Acrylonitrile-Butadine-Styrene (ABS) has been receiving much attention as a cushion against impact and vibration, on account of its very favorable mechanical properties, including elevated impact strength, stiffness and tensile strength, as well as outstanding formability. The geometry of deployed samples does influence dynamic performance. In this work, the methods of analysis, experiment and numerical computation have been applied to explore different modal parameters of rectangular ABS specimens with completely free boundary conditions. Experimentally, Pulse 15.1 software was used to investigate the modal parameters while the specimens were numerically modeled in Abaqus/Standard 3D using C3D20R (second order 20-node quadratic brick) element types with the Lancsoz Eigensolver method. Parametric explorations over the geometry space enabled useful trends to be identified with respect to vibration and impact applications. Experimental and numerical results were found to compare very favorably.
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Alqosaibi, Khalid, Hussam Noor, Peng Gao, Alaauldeen Duhduh, and John Coulter. "Advanced Melt Rheology Control: A Filling Defects Investigation for Hot Runner Based Injection Molding." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73757.

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Abstract A novel invention called Rheodrop technology is introduced for hot runner based injection molding. The technology allows control over melt rheology by applying desired shear rate values to the polymer melt during and/or in between injection molding cycles. The shear rate is applied by rotating the valve pin inside the hot drops and it is controlled by adjusting the rotational speed. The main goals are to optimize the process and to enhance the properties of molded parts. The focus on this study was incomplete filling defects which can be eliminated by the introduced technology. Numerical simulation and experimental analysis were performed to investigate the incomplete filling issue for hot runner systems. A four cavity hot runner mold was utilized in this research study and the processed material was Acrylonitrile Butadiene Styrene (ABS). Moldflow simulations was presented at three different temperature levels. The cavities were perfectly filled at the highest melt temperature level with incomplete filling resulting at the lower levels of melt temperature. Experimental results showed that implementing Rheodrop technology produces consistent ideal filling throughout the selected range of melt temperatures.
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Clark, Sarah, Timothy Yap, and Mehran Tehrani. "Validation of a Finite Element Model for Fused Filament Fabrication Additive Manufacturing." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73803.

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Abstract Fused filament fabrication (FFF) is a material extrusion additive manufacturing (AM) process that works well with thermoplastic polymers and is notably inexpensive compared to other AM processes, leading to its increasing popularity for industrial applications. Finite element analysis (FEA) is used to simulate the thermal histories involved in FFF. In this paper, several simulation cases of increasing complexity are presented, and both a thermocouple and an infrared thermal imaging system are used to validate the simulation results. First, a steady-state case is conducted and simulated to corroborate the two validation tools and to calibrate the thermal emissivity value and conductivity coefficient of the thermoplastic used for testing, in this case, acrylonitrile butadiene styrene (ABS). Next, the thermal camera is tested for its response time by comparing its frame rate to the resulting thermal images. Lastly, MSC Digimat-AM is used to simulate the FFF printing process. It was concluded that infrared thermal imaging is suitable for in-process thermal data collection during FFF printing, but with several limitations, such as low resolution, thermal radiation from the print bed due to the nozzle, and reflections of surroundings off the print bed. Thermocouples can act as aids to calibrate the thermal imaging but affect the cooling rate of the surrounding filament.
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Zhang, Meng, Xiaoxu Song, Weston Grove, Emmett Hull, Z. J. Pei, Fuda Ning, and Weilong Cong. "Carbon Nanotube Reinforced Fused Deposition Modeling Using Microwave Irradiation." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8790.

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Additive manufacturing (AM) is a class of manufacturing processes where material is deposited in a layer-by-layer fashion to fabricate a three-dimensional part directly from a computer-aided design model. With a current market share of 44%, thermoplastic-based additive manufacturing such as fused deposition modeling (FDM) is a prevailing technology. A key challenge for AM parts (especially for parts made by FDM) in engineering applications is the weak inter-layer adhesion. The lack of bonding between filaments usually results in delamination and mechanical failure. To address this challenge, this study embedded carbon nanotubes into acrylonitrile butadiene styrene (ABS) thermoplastics via a filament extrusion process. The vigorous response of carbon nanotubes to microwave irradiation, leading to the release of a large amount of heat, is used to melt the ABS thermoplastic matrix adjacent to carbon nanotubes within a very short time period. This treatment is found to enhance the inter-layer adhesion without bulk heating to deform the 3D printed parts. Tensile and flexural tests were performed to evaluation the effects of microwave irradiation on mechanical properties of the specimens made by FDM. Scanning electron microscopic (SEM) images were taken to characterize the fracture surfaces of tensile test specimens. The actual carbon nanotube contents in the filaments were measured by conducting thermogravimetric analysis (TGA). The effects of microwave irradiation on the electrical resistivity of the filament were also reported.
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