Literatura científica selecionada sobre o tema "Borate de zinc hydraté"
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Artigos de revistas sobre o assunto "Borate de zinc hydraté"
Schubert. "Hydrated Zinc Borates and Their Industrial Use". Molecules 24, n.º 13 (30 de junho de 2019): 2419. http://dx.doi.org/10.3390/molecules24132419.
Texto completo da fonteSong, Jiuqiang, Zhixiong Huang, Yan Qin e Xinyi Li. "Thermal Decomposition and Ceramifying Process of Ceramifiable Silicone Rubber Composite with Hydrated Zinc Borate". Materials 12, n.º 10 (15 de maio de 2019): 1591. http://dx.doi.org/10.3390/ma12101591.
Texto completo da fonteMahajan, Dhiraj S., Tushar D. Deshpande, Mahendra L. Bari, Ujwal D. Patil e Jitendra S. Narkhede. "Hydrated and anhydrous zinc borate fillers for tuning the flame retardancy of epoxy nanocomposites". Journal of Applied Polymer Science 137, n.º 34 (22 de janeiro de 2020): 48987. http://dx.doi.org/10.1002/app.48987.
Texto completo da fonteGreen, Joseph. "Mechanisms for Flame Retardancy and Smoke suppression -A Review". Journal of Fire Sciences 14, n.º 6 (novembro de 1996): 426–42. http://dx.doi.org/10.1177/073490419601400602.
Texto completo da fonteŁopiński, Jakub, Beata Schmidt, Yongping Bai e Krzysztof Kowalczyk. "Effect of the B:Zn:H2O Molar Ratio on the Properties of Poly(Vinyl Acetate) and Zinc Borate-Based Intumescent Coating Materials Exposed to a Quasi-Real Cellulosic Fire". Polymers 12, n.º 11 (30 de outubro de 2020): 2542. http://dx.doi.org/10.3390/polym12112542.
Texto completo da fonteSchubert, David M. "Zinc Borate Hydrolysis". Molecules 27, n.º 18 (6 de setembro de 2022): 5768. http://dx.doi.org/10.3390/molecules27185768.
Texto completo da fonteBenrashid, Ramazan, Gordon L. Nelson, Donald J. Ferm e Leland W. Chew. "Effect of Zinc, Zinc Oxide and Zinc Borate on the Flammability of Polycarbonate". Journal of Fire Sciences 13, n.º 3 (maio de 1995): 224–34. http://dx.doi.org/10.1177/073490419501300305.
Texto completo da fonteWu, Yang, Ji-Yong Yao, Jian-Xiu Zhang, Pei-Zhen Fu e Yi-Cheng Wu. "Potassium zinc borate, KZnB3O6". Acta Crystallographica Section E Structure Reports Online 66, n.º 5 (30 de abril de 2010): i45. http://dx.doi.org/10.1107/s1600536810015175.
Texto completo da fonteBenrashid, Ramazan, Gordon L. Nelson e Donald J. Ferm. "Effect of Triaryl Phosphate, Zinc and Zinc Borate on Fire Properties of High Impact Polystyrene and High Impact Polystyrene-Polyphenylene Oxide Blend (Modified-Polyphenylene Oxide". Journal of Fire Sciences 12, n.º 6 (novembro de 1994): 529–50. http://dx.doi.org/10.1177/073490419401200605.
Texto completo da fonteBenrashid, R., G. L. Nelson e Donald J. Ferm. "Effect of Zinc and Zinc Borate on Fire Properties of Modified Polyphenylene Oxide". Journal of Fire Sciences 11, n.º 3 (maio de 1993): 210–31. http://dx.doi.org/10.1177/073490419301100302.
Texto completo da fonteTeses / dissertações sobre o assunto "Borate de zinc hydraté"
Doumert, Bertrand. "Apport de la RMN 1D/2D à l'étude de systèmes inorganiques boratés : caractérisation structurale du réseau vitreux borophosphate et réactivité des retardateurs de flamme APP-ZBH". Electronic Thesis or Diss., Université de Lille (2022-....), 2023. https://pepite-depot.univ-lille.fr/ToutIDP/EDSMRE/2023/2023ULILR067.pdf.
Texto completo da fonteSolid-state Nuclear Magnetic Resonance (NMR) spectroscopy has become an essential technique for characterizing inorganic oxide materials. In recent years, the resolution of NMR spectra has been significantly improved by the development of increasingly powerful spectrometers. In the Lille context, this improvement in resolution has particularly benefited studies on borate materials synthesized by the university's various research teams. The aim of this thesis is to support the development of NMR studies on locally-prepared borate materials, in particular by demonstrating the benefits of correlation NMR techniques. Two types of materials have been selected for study: zinc borophosphate glasses prepared at LASIRE, and flame-retardant systems based on hydrated zinc borate and ammonium polyphosphate prepared at UMET.The glassy materials studied are zinc borophosphates with the composition xB2O3 - (50-x/2)ZnO - (50-x/2)P2O5, known for their low glass transition temperature (Tg) and good chemical durability. Analyses by 11B and 31P 1D/2D advanced NMR spectroscopy linked the mixed-former effect observed on Tg with the structure of the glassy network.Flame retardant systems based on hydrated zinc borate (ZBH) and ammonium polyphosphate (APP) are commonly used in industry. The 1D/2D NMR analyses in this work have contributed to understanding the thermal degradation mechanism of each compound in the first instance, and to understanding the reactivity between the two compounds in the second
Gurhan, Deniz. "Zinc Borate Production In A Batch Reactor". Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/3/12606996/index.pdf.
Texto completo da fontem and 25µ
m), stirring rate (275 rpm, 400 rpm, 800 rpm and 1600 rpm), temperature (75°
, 85°
and 95°
) and size of seed crystals (10µ
m and smaller size) on reaction rate, reaction completion time, composition and particle size distribution of zinc borate were investigated. Experiments were performed in a continuously stirring, temperature controlled batch reactor with a volume of 1.5L. During the experiments samples were taken to be analyzed in regular time intervals. The analyses of the samples gave the concentration change of zinc oxide and boron oxide in the solid as well as the conversion of zinc oxide to zinc borate with respect to time and the rate of reaction was calculated. The products were also analyzed for particle size distribution. The experimental results showed that the reaction rate increased with the increasing H3BO3:ZnO ratio, particle size of zinc oxide, stirring rate and temperature. The reaction completion time was also decreased by increasing H3BO3:ZnO ratio, stirring rate and temperature. The particle size of final product, zinc borate, decreased with increasing stirring rate and size of zinc borate used as seed and increased with increasing particle size of zinc oxide used as reactant. The average particle sizes of the final product zinc borates synthesized at the end of the experiments were ranged between 4.3 µ
m and 16.6 µ
m. The zinc borate production reaction was mainly fitted the unreacted core model for the case of diffusion through product layer controls.
Eltepe, Hüdal Emre Balköse Devrim. "The Development of Zinc Borate Production Process/". [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/kimyamuh/T000499.pdf.
Texto completo da fonteErdoğdu, Cem Aykut Balköse Devrim. "The development of synergistic heat stabilizers for PVC from Zinc Borate-Zinc Phosphate/". [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/kimyamuh/T000509.pdf.
Texto completo da fonteOzkaraca, Ayse Cagil. "Flame Retrdancy Effects Of Zinc Borate And Nanoclay In Abs". Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613425/index.pdf.
Texto completo da fonteX-ray diffraction analysis, scanning and transmission electron microscopy, thermogravimetric analysis and tensile tests. Studies for the first purpose indicated that almost all flame retardancy parameters were preserved when antimony trioxide were replaced with zinc borate as much as in the ratio of 1:3. Residue analyses revealed that predominant flame retardancy mechanism of traditional system was gas phase action, while zinc borate contributes especially in the condensed phase action by forming thicker and stronger char layer. Investigations for the second purpose basically concluded that use of nanoclays improved all flame retardancy parameters significantly. Residue analyses pointed out that nanoclays especially contribute to the formation of stronger and carbonaceoussilicate char acting as a barrier to heat and flammable gases and retarding volatilization via tortuous pathway. As an additional third purpose in this thesis, usability of three boron compounds (zinc borate ZB, boric acid BA, boron oxide BO) with two traditional flame retardants (organic phosphinate OP and melamine cyanurate MC) in neat PET and recycled PET were also examined leading to some promising results in MLC parameters.
Yao, Zhao Yue. "Synthesis, structure, and mechanical properties of lead- and zinc-copper borate glasses". Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S080.
Texto completo da fonteThe aim of this work is to study the effect of copper content and copper valence on the structural and mechanical properties of glass. Zinc- and lead- copper borate glasses were studied. Their structural changes with the substitution of CuO for ZnO or PbO are followed by Raman and reflectance infrared. The oxidation state, site environment and bonding characteristic of copper ions are studied by optical and electron spin resonance spectroscopy. The mechanical properties were determined and correlated to the glass structure and composition, with a particular emphasis on the elastic properties, sharp indentation behavior (hardness and micro-cracking), toughness and temperature dependence of elasticity. Copper tends to stabilize trigonal boron and gives a more homogeneous metaborate structure. Adding copper ions to the metaborate glass clearly improves the mechanical performance (elastic moduli and hardness), in the meantime decreases the temperature sensitivity and soften rate of lead borate glasses. However, adding copper ions in zinc borate glasses has opposite effects on these properties. The chemistry changes at zinc-copper-borate glass surface after heat-treatment are also studied. Investigation of the nanoindentation and scratch behavior show that the crystallized layer improves the mechanical resistant of glass surface
Baltaci, Berk. "Sytnhesis And Characterization Of Nano Zinc Borate And Its Usage As A Flame Retardant For Polymers". Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612701/index.pdf.
Texto completo da fonteeffect of using nano-sized zinc oxide as reactant on the synthesis, properties and morphology of 2ZnO.3B2O3.3.5H2O were investigated. Synthesized zinc borates were characterized by X-Ray diffraction (XRD), Scanning Electron Microscope (SEM) and Thermogravimetric Analysis (TGA). The results were compared with a commercial zinc borate, Firebrake (FB). Characterization results showed that at least in one dimension sub-micron size was obtained and synthesized zinc borates did not lose their hydration water until the process temperature of the composites. In the second part of the study, PET based composites, which mainly included synthesized sub-micron sized zinc borates were prepared by using a co-rotating twin screw extruder and injection molding machine. Synergist materials such as boron phosphate (BP) and triphenyl phosphate (TPP) were also used in the composite preparation. The composites were characterized in terms of flammability and mechanical properties. Flammability of composites was determined by using a Limiting Oxygen Index (LOI) test. Mechanical properties such as tensile strength, elastic modulus, elongation at break and impact strength were also studied. According to LOI and impact tests, the composites containing 3 wt. % BP and 2 wt. % zinc borate which was modified with poly(styrene-co-maleic anhydride), 2PSMA05/3BP and 2PSMA1/3BP have higher LOI and impact values when compared to neat PET.
Zhao, Chuanli. "The influence of solid additives on the tribological properties of lubricants". Thesis, University of Hertfordshire, 2013. http://hdl.handle.net/2299/11082.
Texto completo da fonteDelaval, Damien. "Développement et caractérisation de systèmes intumescents retardateurs de flamme pour polypropylènes recyclés issus des véhicules usagés". Thesis, Lille 1, 2009. http://www.theses.fr/2009LIL10015/document.
Texto completo da fonteThe impact of recycling and pollutants (engine oil (EO) and ethylene glycol (EG)) on the intrinsic properties of polypropylene-based materials coming from end-of-life cars was investigated. Recycling (limited here to six extrusion cycles) is not detrimental to the mechanical properties of the polymeric matrices. The crystallization kinetics study realized on the polluted polymers showed that the presence of EG delays crystallization. The degradation kinetics allowed to simulate and quantify the different degradation steps of the materials. Pollutants and recycling also lead to an improvement of the reaction to fire of our copolymer, especially in the case of EO-containing samples. The second part of the work was devoted to the study of the flame retardant properties of our materials provided by ammonium polyphosphate (APP) with or without zinc borate (ZB) (synergistic agent)). In all cases recycled and polluted materials show satisfying performances. It was found that the efficiency of the protective barrier provided by the char is governed by the rapidity of its formation and its thermal conductivity which are positively influenced by EO (with APP/ZB) and recycling (with APP) (increase of the formation rate and decrease of the conductivity). Chemical characterization of the structures formed in a fire scenario reveals the formation of a phosphocarboneous structure containing polyaromatics, pyrophosphates and phosphoric acid and when zinc borate is used, borophosphates which can reinforce the intumescent structure
Delaval, Damien. "Développement et caractérisation de systèmes intumescents retardateurs de flamme pour polypropylènes recyclés issus des véhicules usagés". Electronic Thesis or Diss., Lille 1, 2009. http://www.theses.fr/2009LIL10015.
Texto completo da fonteThe impact of recycling and pollutants (engine oil (EO) and ethylene glycol (EG)) on the intrinsic properties of polypropylene-based materials coming from end-of-life cars was investigated. Recycling (limited here to six extrusion cycles) is not detrimental to the mechanical properties of the polymeric matrices. The crystallization kinetics study realized on the polluted polymers showed that the presence of EG delays crystallization. The degradation kinetics allowed to simulate and quantify the different degradation steps of the materials. Pollutants and recycling also lead to an improvement of the reaction to fire of our copolymer, especially in the case of EO-containing samples. The second part of the work was devoted to the study of the flame retardant properties of our materials provided by ammonium polyphosphate (APP) with or without zinc borate (ZB) (synergistic agent)). In all cases recycled and polluted materials show satisfying performances. It was found that the efficiency of the protective barrier provided by the char is governed by the rapidity of its formation and its thermal conductivity which are positively influenced by EO (with APP/ZB) and recycling (with APP) (increase of the formation rate and decrease of the conductivity). Chemical characterization of the structures formed in a fire scenario reveals the formation of a phosphocarboneous structure containing polyaromatics, pyrophosphates and phosphoric acid and when zinc borate is used, borophosphates which can reinforce the intumescent structure
Capítulos de livros sobre o assunto "Borate de zinc hydraté"
Bährle-Rapp, Marina. "Zinc Borate". In Springer Lexikon Kosmetik und Körperpflege, 600. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_11301.
Texto completo da fonteAtakul Savrik, Sevdiye, Burcu Alp, Fatma Ustun e Devrim Balkose. "Nano Zinc Borate as a Lubricant Additive". In Applied Physical Chemistry with Multidisciplinary Approaches, 303–23. Toronto : Apple Academic Press, 2018. | Series: Innovations in physical chemistry. Monograph series: Apple Academic Press, 2018. http://dx.doi.org/10.1201/9781315169415-13.
Texto completo da fontePiskin, Sabrive, Nil Baran Acarali, Emek Moroydor Derun e Nurcan Tugrul. "Investigation of Reaction Conditions Effecting Hydrophobicity on Zinc Borate Yield". In Supplemental Proceedings, 379–83. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062173.ch47.
Texto completo da fonteBourbigot, Serge, Fabien Carpentier e Michel Le Bras. "Thermal Degradation and Combustion Mechanism of EVA-Magnesium Hydroxide-Zinc Borate". In ACS Symposium Series, 173–85. Washington, DC: American Chemical Society, 2001. http://dx.doi.org/10.1021/bk-2001-0797.ch014.
Texto completo da fonteShen, Kelvin K., e T. Scott Griffin. "Zinc Borate as a Flame Retardant, Smoke Suppressant, and Afterglow Suppressant in Polymers". In ACS Symposium Series, 157–77. Washington, DC: American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0425.ch012.
Texto completo da fonteJackson, William M. "Boroflux (Zinc Borate) Lower Cost Flux Systems: Reduce the Firing of Most Bodies to Cone 01". In Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 10, Issue 1/2, 99–108. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470310526.ch15.
Texto completo da fontePiskin, Mehmet Burcin, Nil Baran Acarali, Nurcan Tugrul, Emek Moroydor Derun e Ozlem Akgul. "A Study on the Hydrophobicity and Investigation of Physical and Chemical Properties of Produced Zinc Borate". In Supplemental Proceedings, 373–77. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062173.ch46.
Texto completo da fonte"Physical, Optical and Structural Properties of Er3+ Doped Zinc/Cadmium Bismuth Borate/Silicate Glasses". In Current Trends on Glass and Ceramic Materials, editado por Inder Pal, Ashish Agarwal, Sujata Sanghi e Mahender P. Aggarwal, 142–81. BENTHAM SCIENCE PUBLISHERS, 2013. http://dx.doi.org/10.2174/9781608054527113010010.
Texto completo da fonteThirukumaran, M., K. Senthilkumar e R. Selvabharathi. "15 Effect of carbon nanotubes, aluminum hydroxide, and zinc borate on the mechanical and fire properties of epoxy nanocomposite". In Nanocomposite and Nanohybrid Materials, 297–314. De Gruyter, 2023. http://dx.doi.org/10.1515/9783111137902-015.
Texto completo da fonteBanerjee, Diptonil, Amit Kumar Sharma e Nirmalya Sankar Das. "Basic Structures and Properties of Few Potential Nanomaterials". In Nano Materials Induced Removal of Textile Dyes from Waste Water, 161–206. BENTHAM SCIENCE PUBLISHERS, 2022. http://dx.doi.org/10.2174/9789815050295122010007.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Borate de zinc hydraté"
Gao, Pingqiang, Wenhua Song, Feng Ding e Xing Wang. "Synthesis of a new lamellar nano zinc borate". In 2013 International Conference on Materials for Renewable Energy and Environment (ICMREE). IEEE, 2013. http://dx.doi.org/10.1109/icmree.2013.6893742.
Texto completo da fonteShigihalli, N. B., R. Rajaramakrishna, R. V. Anavekar, Alka B. Garg, R. Mittal e R. Mukhopadhyay. "Optical Properties of Eu[sup 3+] Doped Lead Borate Tellurite and Zinc Borate Tellurite Glasses". In SOLID STATE PHYSICS, PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010. AIP, 2011. http://dx.doi.org/10.1063/1.3605975.
Texto completo da fonteHanamar, Kavita, B. G. Hegde, Kishor Upadhyaya e N. H. Ayachit. "Optical properties of samarium doped lithium zinc borate glasses". In INTERNATIONAL CONFERENCE ON MULTIFUNCTIONAL MATERIALS (ICMM-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0019568.
Texto completo da fonteRajaramakrishna, R., R. Lakshmikantha e R. V. Anavekar. "Elastic properties of Li+ doped lead zinc borate glasses". In SOLID STATE PHYSICS: Proceedings of the 58th DAE Solid State Physics Symposium 2013. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4872737.
Texto completo da fontePrabhu, Nimitha S., e Sudha D. Kamath. "Green emission features of erbium doped lithium zinc borate glasses". In DAE SOLID STATE PHYSICS SYMPOSIUM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0016896.
Texto completo da fonteSubhashini, Soumalya Bhattacharya, H. D. Shashikala e N. K. Udayashankar. "Synthesis and studies on microhardness of alkali zinc borate glasses". In SOLID STATE PHYSICS: Proceedings of the 58th DAE Solid State Physics Symposium 2013. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4872742.
Texto completo da fonteCorbari, C., L. Chandru, I. C. S. Carvalho, O. Deparis, F. P. Mezzapesa, P. G. Kazansky e K. Sakaguchi. "2pm/V in Poled Bismuth-Zinc-Borate High Index Glass". In 11th European Quantum Electronics Conference (CLEO/EQEC). IEEE, 2009. http://dx.doi.org/10.1109/cleoe-eqec.2009.5196591.
Texto completo da fonteBorodi, G., P. Pascuta, M. Bosca, R. Stefan, R. Tetean, V. Pop e D. Radulescu. "Magnetic behavior of erbium-zinc-borate glasses and glass ceramics". In PROCESSES IN ISOTOPES AND MOLECULES (PIM 2013). AIP, 2013. http://dx.doi.org/10.1063/1.4833705.
Texto completo da fonteMahajan, Rubby, Sandeep Kumar, Ram Prakash e Vinay Kumar. "Synthesis and luminescent properties of Sm3+ activated lithium zinc borate phosphor". In NATIONAL CONFERENCE ON RECENT ADVANCES IN EXPERIMENTAL AND THEORETICAL PHYSICS (RAETP-2018). Author(s), 2018. http://dx.doi.org/10.1063/1.5051301.
Texto completo da fonteBansal, Kamal, Saffi Rani, Nisha Rani, Gurjeet Singh e Sukhpal Singh. "Physical and radiation shielding properties of tantalum-zinc-sodium-borate glasses". In ADVANCED MATERIALS AND RADIATION PHYSICS (AMRP-2020): 5th National e-Conference on Advanced Materials and Radiation Physics. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0052351.
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