Academic literature on the topic 'Surfactant substances'
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Journal articles on the topic "Surfactant substances"
Simonelli, George, Caetano Moraes, de Augusto, and dos Lobato. "Multivariate study and optimization of biodiesel production using commercial surfactants." Chemical Industry and Chemical Engineering Quarterly 25, no. 2 (2019): 183–92. http://dx.doi.org/10.2298/ciceq180318031s.
Full textGritskova, I. А., D. I. Shragin, S. М. Levachev, А. А. Ezhova, Е. V. Milushkova, V. М. Kopylov, S. А. Gusev, N. I. Prokopov, and N. A. Lobanova. "FUNCTIONAL ORGANOSILICON SUBSTANCES AS STABILIZERS OF POLYMERIC SUSPENSIONS." Fine Chemical Technologies 11, no. 2 (April 28, 2016): 5–16. http://dx.doi.org/10.32362/2410-6593-2016-11-2-5-16.
Full textJiang, Ting Ting, Jia Lu, Hai Yu Wang, Bao Hui Wang, Hong Jing Han, and Hong Jun Wu. "Analysis on Toxic and Hazardous Substances of Polymer Surfactants Used in Oilfields." Advanced Materials Research 805-806 (September 2013): 1344–47. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.1344.
Full textTaba, Paulina, Russell F. Howe, and Graine Moran. "FTIR AND NMR STUDIES OF ADSORBED CETHYLTRIMETHYLAMMONIUM CHLORIDE IN MCM-41 MATERIALS." Indonesian Journal of Chemistry 8, no. 1 (June 17, 2010): 1–6. http://dx.doi.org/10.22146/ijc.21639.
Full textSvietkina, Olena, Iryna Kovalevska, Kateryna Sai, and Kostiantyn Prokopenko. "Intensifying the process of methane gas hydrates crystallization in the presence of surface-activated substances." E3S Web of Conferences 230 (2021): 01004. http://dx.doi.org/10.1051/e3sconf/202123001004.
Full textLi, H. Q., and H. F. Schröder. "Surfactants – standard determination methods in comparison with substance specific mass spectrometric methods and toxicity testing by Daphnia magna and Vibrio fischeri." Water Science and Technology 42, no. 7-8 (October 1, 2000): 391–98. http://dx.doi.org/10.2166/wst.2000.0593.
Full textTrismawati and D. Wikanaji. "Morinda citrifoliia L. as a renewable raw material for surface active agent." MATEC Web of Conferences 204 (2018): 05011. http://dx.doi.org/10.1051/matecconf/201820405011.
Full textNguyen, Thuy N., Stephanie M. Cunsolo, Peter Gal, and J. Laurence Ransom. "Infasurf and Curosurf: Theoretical and Practical Considerations with New Surfactants." Journal of Pediatric Pharmacology and Therapeutics 8, no. 2 (April 1, 2003): 97–114. http://dx.doi.org/10.5863/1551-6776-8.2.97.
Full textLee, Jiyun, and Seung-Jun Choi. "Influence of Blending of Nonionic Emulsifiers Having Various Hydrophilic Head Sizes on Lipid Oxidation: Investigation of Antioxidant Polarity—Interfacial Characteristics Relationship." Antioxidants 10, no. 6 (May 31, 2021): 886. http://dx.doi.org/10.3390/antiox10060886.
Full textMitru, Daniel, Gheorghe Nechifor, Stefania Gheorghe, Alina Roxana Banciu, Lucian Ionescu, Catalina Stoica, Daniela Liliana Ionica, and Irina Eugenia Lucaciu. "Removal and Effects of Surfactants in Activated Sludge System." Revista de Chimie 71, no. 1 (February 7, 2020): 100–106. http://dx.doi.org/10.37358/rc.20.1.7819.
Full textDissertations / Theses on the topic "Surfactant substances"
Tuhkala, M. (Marko). "Dielectric characterization of powdery substances using an indirectly coupled open-ended coaxial cavity resonator." Doctoral thesis, Oulun yliopisto, 2014. http://urn.fi/urn:isbn:9789526205595.
Full textTiivistelmä Väitöstyön päätavoitteena oli tutkia ja kehittää herkkä jauhemaisten eristemateriaalien karakterisointimenetelmä, jota voitaisiin hyödyntää usealla teollisuuden ja tutkimuksen alueella. Hyödyntäen nykyaikaisia sähkömagnetiikan simulointityökaluja sekä kokeellisia mittauksia, havaittiin TEM -moodissa 4,5 GHz taajuudella toimivan avoimen epäsuorasti kytketyn koaksiaalionteloresonaattorin soveltuvan karakterisoimaan eristejauheita. Sähkömagneettinenmallinnus yhdessä yleisesti käytettyjen eristejauheiden kokeellisten mittausten kanssa osoitti, että partikkelin permittiivisyysarvot voitiin johtaa luotettavasti. Tällöin käytettiin näytemateriaalilla täytetyn resonaattorin ominaisuuksia, sekä yhdeksästä vertaillusta klassisesta sekoitusyhtälöstä Bruggeman symmetristä ja Looyengan sekoitusteorioita. Tämän lisäksi tarkkuutta voitiin parantaa huomattavasti lisäämällä korjauskerroin aikaisemmin julkaistuun neljännesaalto-koaksiaaliresonaattorin permittiivisyyden määrittävään yhtälöön. Eristehäviöiden määrittäminen havaittiin luotettavaksi, kun käytettiin mitattavalla materiaalilla muutetun ja tyhjän resonaattorin ominaisuuksien eroja, sekä general mixing model -yhtälöä. Karakterisointimenetelmän herkkyys tutkittiin ilmankosteudelle altistetuilla, sekä pintakäsittelyllä muutetuilla SiO2, Al2O3 ja ZrO2 -jauheilla. Mittaustulokset osoittivat, että partikkelin pinnalle adsorpoituneen veden vaikutus oli kaikkein korostunein, kun mitattiin partikkelien eristehäviöitä. Tämän lisäksi havaittiin myös selkeä korrelaatio general mixing model -teorian kanssa. Näin ollen muuttuneiden eristeominaisuuksien määritysten lisäksi voitiin määrittää jauheen kosteussisältö riittävällä tarkkuudella. Tulokset korreloivat hyvin perinteisen massaeroihin perustuvan määrittämisen kanssa. Partikkelien pinnoitus steariinihapolla aiheutti ainoastaan pienen muutoksen permittiivisyyteen mutta merkittävän muutoksen eristehäviöihin. Toisin kuin suuremman partikkelikoon SiO2:lla ja Al2O3:lla ZrO2 -partikkelin eristehäviö laski huomattavasti steariinihappopinnoituksen jälkeen, 6,2 × 10-3:sta 3,8 × 10-3:een. Karakterisoitaessa magnesium- ja kalsiumtitanaattikomposiittijauheita käyttämällä CaTiO3 -moolisuhteita 0,0, 0,02, 0,05 ja 0,1 menetelmällä havaittiin olevan hyvä herkkyys ja tarkkuus mitattavan materiaalin muutoksille. CaTiO3 -määrän lisäykset aiheuttivat selkeän nousun partikkelien kokonaispermittiivisyyksissä, joka kasvoi 13,4:sta 14,9:ään, sekä häviötangentissa, joka kasvoi 7,1 × 10-3:sta aina 8,5 × 10-3:een. Tämän lisäksi resonaattorin mitattuihin ominaisuuksiin sekä general mixing model -yhtälöön perustuvan teoreettisen määrityksen havaittin korreloivan hyvin CaTiO3 -moolisuhteisiin. Karakterisointimenetelmän osoitettiin soveltuvan eristeominaisuuksien mittaukseen sekä havaitsemaan jopa erittäin pienet muutokset jauheiden eristeominaisuuksissa. Menetelmää voitaisiin hyödyntää usean tyyppisissä jauhemateriaalien ominaisuuksien määrityksissä, kuten esimerkiksi erilaisten komposiittijauheiden analysoinnissa ja laaduntarkkailussa
Chaaban, Abdul Amir. "Etude de l'organisation structurale des nanocolloïdes humiques." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30062/document.
Full textThe structural organization of humic nanocolloids remains a matter of harsh debate, and surprisingly, it is yet not possible to decide between an arrangement of the humic matter in the form of randomly coiled macromolecules more or less connected, and a supramolecular organization of small heterogeneous molecules linked by hydrogen bonds and hydrophobic interactions. In this study, we investigate the reconformation induced by the addition of cationic surfactants (C n-trimethylammonium chloride) of varying alkyl chain length with a series of humic substances (HS) and Dissolved Organic matter (DOM) from two blackwater rivers of the Central Amazon. Turbidity measurements, Dynamic light scattering, electrophoretic mobility, surface tension, fluorescence spectroscopy, small angle neutron scattering and cryo-transmission electron microscopy (cryo-TEM), are combined to describe the Humic Substance/Surfactant complexes obtained. The association between the oppositely charged HS and cationic surfactant is driven by both electrostatic and hydrophobic interactions. A variety of molecular structures, unilamellar vesicles, disks, globules, spheroidal micelles, are visualized by cryo-TEM depending on surfactant concentration. Such sequence, consistent with those displayed by catanionic systems, provides an independent confirmation of both the amphiphilic nature of HS and of its supramolecular organization. In addition, the molecular rearrangement was investigated using single-scan fluorescence emission spectra spectroscopy, thus identifying the chemical groups responsible for the fluorescence properties in HS and DOM. The addition of cationic surfactant to HS/DOM unveils an unexpected fine structure of humic-like fluorescence through new emission peaks that are not evidenced in the references HS/DOM. An enhanced protein-like fluorescence indicating major restructuration and structural stacking/de-stacking is observed. All our results support a supramolecular organization of humic substances and DOM
Щукіна, Людмила Павлівна, Георгій Вікторович Лісачук, Ярослав Олегович Галушка, Олена Юріївна Федоренко, and Лариса Олександрівна Міхеєнко. "Технологічна цінність промислових хімічних добавок при їх використанні у виробництві будівельної кераміки." Thesis, Одеський національний політехнічний університет, 2013. http://repository.kpi.kharkov.ua/handle/KhPI-Press/31485.
Full textThe technological efficiency of complex surface-active additive "MasterCeram" using to improve the properties of ceramic masses and materials in the manufacture of wall ceramics is investigated. The water-reducing effect of the additive and its positive influence on the strength of the coagulation and condensation structure of ceramic masses are established. The optimal amount of additive, which recommended for use in the manufacture of terraced wall ceramic, are established.
Mahi, Abdellah. "Etude de l'influence des tensioactifs sur l'adsorption des substances humiques et de l'atrazine sur charbon actif." Limoges, 1992. http://www.theses.fr/1992LIMO0161.
Full textPéroval, Claudine. "Influence de la composition, de la structure et du greffage de substances hydrophobes sur les propriétés fonctionnelles de films à base d'arabinoxylanes." Dijon, 2002. http://www.theses.fr/2002DIJOS039.
Full textErrico, Mary J. "The Cyclodextrin-Perfluorinated Surfactant Host-Guest Complex: Fundamental Studies for Potential Environmental Remediation and Therapeutic Applications." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3758.
Full textBenkhedja, Houaria. "Extraction au point de trouble de substances organiques et électrolytes à l'aide de mélangeurs-décanteurs." Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/14245/1/BENKHEDJA.pdf.
Full textFribertová, Marcela. "Posouzení základních ukazatelů odpadní vody firmy Dermacol." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2010. http://www.nusl.cz/ntk/nusl-216589.
Full textRossi, C?tia Guaraciara Fernandes Teixeira. "Inibi??o ? corros?o do a?o AISI 1020, em meios ?cido e salino, por tensoativos e subst?ncias nitrogenadas microemulsionados." Universidade Federal do Rio Grande do Norte, 2007. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17668.
Full textCoordena??o de Aperfei?oamento de Pessoal de N?vel Superior
Corrosion inhibition efficiency of saponified coconut oil (SCO) and sodium dodecilbenzene sulfonate (DBS) surfactants in AISI 1020 carbon steel was evaluated by electrochemical methods. These surfactants were also evaluated as microemulsion systems (SCO-ME and DBS-ME), of O/W type (water-rich microemulsion), in a Winsor IV region. They were obtained according to the following composition: 15% SCO, 15% butanol (30% Co-surfactant/Surfactant C/T), 10% organic phase (FO, kerosene) and 60% aqueous phase (FA). These systems were also used to solubilize the following nitrogenated substances: Diphenylcarbazide (DC), 2,4-dinitro-phenyl-thiosemicarbazide (TSC) and the mesoionic type compound 1,3,4-triazolium-2-thiolate (MI), that were investigated with the purpose of evaluating their anticorrosive effects. Comparative studies of carbon steel corrosion inhibition efficiencies of free DBS and DBS-ME, in brine and acidic media (0.5%), showed that DBS presents better inhibition results in acidic media (free DBS, 89% and DBS-ME, 93%). However, the values obtained for DBS in salted solution (72% free DBS and 77% DBS-ME) were similar to the ones observed for the SCO surfactant in brine (63% free SCO and 74% SCO-ME). Analysis of corrosion inhibition of the nitrogenated substances that were solubilized in the SCO-ME microemulsion system by the linear polarization method in brine (0.5% NaCl) showed that such compounds are very efficient an corrosion inhibitors [DC-ME-SCO (92%), TSC-ME-SCO (93%) and MI-ME-SCO (94%)]
A efici?ncia de inibi??o ? corros?o em a?o AISI 1020 dos tensoativos ?leo de coco saponificado (OCS) e dodecilbenzeno sulfonato de s?dio (DBS), foi avaliada por m?todos eletroqu?micos. Estes tensoativos foram tamb?m avaliados em sistemas microemulsionados (OCS-ME e DBS-ME), do tipo O/A (microemuls?o rica em ?gua) com regi?o de trabalho Winsor IV, e foram obtidos na seguinte composi??o: 15% de OCS, 15% de butanol (30% de Cotensoativo/tensoativo - C/T), 10% de fase org?nica (FO, querosene) e 60% de fase aquosa (FA), tendo sido utilizados, ainda, para a solubiliza??o das subst?ncias nitrogenadas difenilcarbazida (DC), 2,4-dinitro-fenil-tiossemicarbazida (TSC) e do heterociclo do tipo mesoi?nico 1,3,4-triaz?lio-2-tiolato (MI), que foram disponibilizadas para avalia??o dos seus efeitos anticorrosivos. Os estudos comparativos das efici?ncias dos tensoativos DBS livre e DBS-ME na inibi??o da corros?o de a?o carbono, em meios salino e ?cido (0,5%), mostraram que o DBS apresenta melhores resultados de inibi??o em meio ?cido (DBS livre, 89% e DBS-ME, 93%). No entanto, os valores obtidos para o DBS em meio salino (72% DBS livre e 77% DBS-ME) foram semelhantes aos valores observados para o tensoativo OCS em meio salino (63% OCS livre e 74% OCS-ME). A an?lise de inibi??o ? corros?o das subst?ncias nitrogenadas solubilizadas no sistema microemulsionado OCS-ME, pelo m?todo de curvas de polariza??o linear em meio salino (NaCl 0,5%) mostrou que tais compostos s?o muito eficazes na inibi??o ? corros?o [DC-ME-OCS (92%), TSC-ME-OCS (93%) e MI-ME-OCS (94%)]
Books on the topic "Surfactant substances"
Transport and remediation of subsurface contaminants: Colloidal, interfacial, and surfactant phenomena. Washington, DC: American Chemical Society, 1992.
Find full text(Editor), David A. Sabatini, and Robert C. Knox (Editor), eds. Transport and Remediation of Subsurface Contaminants: Colloidal, Interfacial, and Surfactant Phenomena (Acs Symposium Series). An American Chemical Society Publication, 1998.
Find full textBook chapters on the topic "Surfactant substances"
Thurman, E. M., and Jennifer Field. "Separation of Humic Substances and Anionic Surfactants from Ground Water by Selective Adsorption." In Advances in Chemistry, 107–14. Washington, DC: American Chemical Society, 1988. http://dx.doi.org/10.1021/ba-1988-0219.ch008.
Full textGuerranti, Cristiana, Serena Anselmi, Francesca Provenza, Andrea Blašković, and Monia Renzi. "Action of Surfactants in Driving Ecotoxicity of Microplastic-Nano Metal Oxides Mixtures: A Case Study on Daphnia magna under Different Nutritional Conditions." In Surfactants [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99487.
Full textShyshkina, Alexandra. "THE APPLICATION OF COLLOIDAL SURFACES AS A CATALYST OF CEMENT HYDRATION REACTIONS." In Integration of traditional and innovation processes of development of modern science. Publishing House “Baltija Publishing”, 2020. http://dx.doi.org/10.30525/978-9934-26-021-6-43.
Full textPardakhty, Abbas. "Non-Ionic Surfactant Vesicles (Niosomes) as New Drug Delivery Systems." In Pharmaceutical Sciences, 154–84. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1762-7.ch007.
Full textPardakhty, Abbas. "Non-Ionic Surfactant Vesicles (Niosomes) as New Drug Delivery Systems." In Advances in Medical Technologies and Clinical Practice, 89–119. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-0751-2.ch004.
Full textDjekic, Ljiljana. "Liposomes." In Advances in Medical Technologies and Clinical Practice, 27–51. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-0751-2.ch002.
Full textObladen, Michael. "Holding breath." In Oxford Textbook of the Newborn, edited by Michael Obladen, 91–94. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780198854807.003.0014.
Full textWlodzimierz Sulek, Marian. "Aqueous Solutions of Oxyethylated Fatty Alcohols as Model Lubricating Substances." In Surfactants in Tribology. CRC Press, 2008. http://dx.doi.org/10.1201/9781420060089.ch17.
Full text"Aqueous Solutions of Oxyethylated Fatty Alcohols as Model Lubricating Substances." In Surfactants in Tribology, Volume 1, 357–86. CRC Press, 2008. http://dx.doi.org/10.1201/9781420060089-26.
Full textKovalenko, Galina, and Larisa Perminova. "Heterogeneous Biocatalysts for the Final Stages of Deep Processing of Renewable Resources into Valuable Products." In Molecular Biotechnology [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.89411.
Full textConference papers on the topic "Surfactant substances"
Vathanapanich, Y., and F. Srisuriyachai. "Reduction of Surfactant Adsorption by Alkali Substances in Carbonate Reservoir." In 79th EAGE Conference and Exhibition 2017. Netherlands: EAGE Publications BV, 2017. http://dx.doi.org/10.3997/2214-4609.201701291.
Full textSimion, Demetra, Carmen Gaidau, Jianzhong Ma, and Zhang Wenbo. "New nanostructured composite obtained by innovative technologies." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.22.
Full textGaver, Donald P., Melissa A. Krueger, and Samir N. Ghadiali. "The Influence of Surfactant Physicochemical Properties on Pulmonary Interfacial Flow Analogues." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0218.
Full textImamura, Koreyoshi, K. Takeda, K. Yamamoto, H. Imanaka, and N. Ishida. "Thermal stability of amorphous sugar matrix, dried from methanol, as an amorphous solid dispersion carrier." In 21st International Drying Symposium. Valencia: Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/ids2018.2018.7716.
Full textAldi, Nicola, Nicola Casari, Devid Dainese, Mirko Morini, Michele Pinelli, Pier Ruggero Spina, and Alessio Suman. "The Effects of Third Substances at the Particle/Surface Interface in Compressor Fouling." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-64425.
Full textAfanas'ev, S. O., and M. A. Pal'chikov. "The course of paranoid schizophrenia comorbid with substance abuse surfactant: clinical happening." In Scientific dialogue: Medical issues. ЦНК МОАН, 2019. http://dx.doi.org/10.18411/spc-15-05-2019-04.
Full textSalazar, V., J. E. Gonza´lez, and L. A. Rivera. "Measurement of Temperatures on In-Flight Water Droplets by Laser Induced Fluorescence Thermometry." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47100.
Full textSlamet, Muhammad Ibadurrohman, and Pangiastika Putri Wulandari. "Synthesis of methyl ester sulfonate surfactant from crude palm oil as an active substance of laundry liquid detergent." In PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON APPLIED CHEMISTRY 2017. Author(s), 2017. http://dx.doi.org/10.1063/1.5011915.
Full textIburi, Yuki, Jie Huang, and Takayuki Saito. "The Effects of Bubble Interface Contamination on Bubble Motion, Bubble-Induced Surrounding Liquid Motion and Mass Transfer." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-30406.
Full text