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668.1 : Agents tensioactifs : savons, détergents 668 Technologie des autres produits organiques
668.3 Adhésifs et produits semblables 668.4 Plastiques, vinyles 668.5 Parfums et cosmétiques 668.65 Pesticides 668.9 Polymères |
Ouvrages de la bibliothèque en indexation 668.1
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Effect of cetyltrimethylammonium bromide on the oxidation of béta-alanine by N-bromophthalimide in acidic medium / Y. R. Katre in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 4/2008 (07-08/2008)
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Titre : Effect of cetyltrimethylammonium bromide on the oxidation of béta-alanine by N-bromophthalimide in acidic medium Type de document : texte imprimé Auteurs : Y. R. Katre, Auteur ; G. K. Joshi, Auteur ; A. K. Singh, Auteur Année de publication : 2008 Article en page(s) : p. 213-221 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Kinetics Oxidation B-alanine Binding constant Index cooperativity Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The kinetics of the oxidation of béta-alanine (Ala) by N-bromophthalimide (NBP) has been studied in the presence of cationic surfactant, cetyltrimethylammonium bromide (CTAB) at 313 K. The oxidation kinetics exhibits first order kinetics with respect to [Oxidant], fractional order of [Ala] and inverse fractional order of [H+] on the rate of reaction. The rate of reaction decreases with decreasing dielectric constant of the medium. The rate constant increases with increasing CTAB and then constant. Increasing [Hg(OAc)2] and inorganic salts i.e. [Cl–] and [Br–] increased the rate of reaction, whereas a change in ionic strength of the medium had no effect on oxidation velocity. Methyl Cyanide as the main oxidation product has been identified. Thermodynamic and activation parameters have been evaluated. The rate constants, binding constants with surfactant (CTAB) and the index of cooperativity have also been evaluated. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2947
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Code-barres Cote Support Localisation Section Disponibilité 010535 - Périodique Bibliothèque principale Documentaires Disponible Effect of micellar aggregates on the kinetics of dextrose oxidation by N-bromosuccinimide / Y. Katre in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 2/2010 (03-04/2010)
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Titre : Effect of micellar aggregates on the kinetics of dextrose oxidation by N-bromosuccinimide Type de document : texte imprimé Auteurs : Y. Katre, Auteur ; A. K. Singh, Auteur ; M. Singh, Auteur Année de publication : 2010 Article en page(s) : p. 98-105 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Catalyse micellaire Oxydation Cinétique Concentration critique (CMC) Réactions bimoléculaires Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The kinetics of oxidation of dextrose by N-bromosuccinimide (NBS) has been investigated in the presence of cationic cetyltrimethylammonium bromide (CTAB) surfactant in sulfuric acid (H2SO4) medium. Similarly in absence of CTAB solution, the reaction followed fractional, first, and negative fractional-order kinetics with respect to [dextrose], [NBS] and [H2SO4], respectively. Although the reaction mechanism remained unaltered by micelles, a typical kpsi-[CTAB] profile was observed, that is, with a progressive increase in [CTAB], the reaction rate increased, reached a maximum value, and then decreased. The results are treated quantitatively in terms of Berezin's model. Activation parameters were also evaluated and a negative value of deltaS# shows the formation of well-structured activated complex. The influence of salts on the reaction rates has also been seen. On the basis of product analysis, a pertinent mechanism is proposed. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8878
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Code-barres Cote Support Localisation Section Disponibilité 012052 - Périodique Bibliothèque principale Documentaires Disponible Effect of molecular structure on interfacial activity and emulsification property in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 5 (09-10/2012)
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Titre : Effect of molecular structure on interfacial activity and emulsification property Type de document : texte imprimé Année de publication : 2012 Article en page(s) : p. 394-397 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Emulsions -- Stabilité
Structure moléculaire
Surfactants
Tension superficielleIndex. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : This paper presents the reasons for the differences in interface tension and emulsion stability of Span60, Tween20, Tween60, Tween80 from the perspective of the molecular structure. For a surfactant emulsion, there is no complete correlation between interfacial tension and emulsion stability. Interface tension cannot determine the emulsion stability, but the molecular structure of the surfactant is the determinant of both the interface tension and emulsion stability. The branching degree of hydrophilic group, carbon chain length of hydrophobic group and carbon-carbon double bond had played a very important role. The clarification of the effect of molecular structure has significant theoretical meanings for modifying and synthetizing new surfactants. DOI : 10.3139/113.110208 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15875
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Code-barres Cote Support Localisation Section Disponibilité 14156 - Périodique Bibliothèque principale Documentaires Disponible Effect of nano and micro emulsion silicone softeners on properties of polyester fibers / Mazeyar Parvinzadeh in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 5/2008 (09-10/2008)
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Titre : Effect of nano and micro emulsion silicone softeners on properties of polyester fibers Type de document : texte imprimé Auteurs : Mazeyar Parvinzadeh, Auteur Année de publication : 2008 Article en page(s) : p. 254-257 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie
Emulsions
Fibres textiles synthétiques
PolyestersIndex. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The processing of textiles to achieve a particular handle is one of the most important aspects of finishing technology. Softeners improve soft handle, smoothness, elasticity, hydrophilic, antistatic and soil release properties on textiles. Macro and micro sized silicone softeners are commonly used for these purposes but nano silicone is a new class of softener. In this research, polyester fabrics were first scoured with nonionic detergent and then treated with three concentrations of nano and micro silicone softeners in water including 10, 20 and 30 g/L at 30°C for 60 seconds by padding method. The treated fabrics were then dried/cured at 130°C for 40 seconds. The pH was maintained at 5 using acetic acid. Some of the physical and chemical properties of the treated fabric samples were discussed. The drapeability of nano emulsion treated samples was decreased compared with micro emulsion treated ones. Colorimetric properties of softener treated fabrics were evaluated with reflectance spectrophotometer. Scanning electron microscope photographs showed nano silicone particles aggregated on fiber surface. Moisture regain of nano emulsion treated samples was decreased compared with micro emulsion treated due to coating of nano silicone particles. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3038
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Code-barres Cote Support Localisation Section Disponibilité 010682 - Périodique Bibliothèque principale Documentaires Disponible Effect of oleate/bacteria interactions on dolomite separation from phosphate ore / A. M. Elmahdy in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 6/2009 (11-12/2009)
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Titre : Effect of oleate/bacteria interactions on dolomite separation from phosphate ore Type de document : texte imprimé Auteurs : A. M. Elmahdy, Auteur ; Ayman A. El-Midany, Auteur ; Nagui A. Abdel-Khalek, Auteur ; S. E. El-Mofty, Auteur Année de publication : 2009 Article en page(s) : p. 340-345 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Surfactants Tags : Dolomite Apatite 'Oléate de sodium' Bactéries Bio-réduction Bio-flottaison 'Minéraux carbonatés' Phosphate Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : In conventional flotation, the sodium oleate is used as a collector for phosphate separation from silica. However, most of the phosphate deposits contain carbonate impurities, which deteriorate the flotation selectivity using sodium oleate. In this paper, the amenability of the carbonate separation from a sedimentary phosphate ore through bio-flotation process, as a one of various efforts to solve the carbonate problem, was tested. The interaction of two types of bacteria (Corynebacterium-diphtheriae-intermedius, CDI, and Pseudomonas aeruginosa, PA) with sodium oleate was investigated. The interaction between collector and bacteria was determined by Fourier Transform Infra-Red (FTIR) measurements, zeta potential before and after adsorption of bacteria, as well as frothing power. The results showed that bio-flotation could produce a phosphate concentrate of 0.85 % MgO and 30.2 % P2O5 with a recovery of 92 % at pH 5.5, 1.25 kg/t sodium oleate, ≥ 1 × 108 cells of CDI bacteria. The specification of such concentrate could not be obtained by the conventional flotation experiments, in absence of bacteria, under similar conditions. This means that bacteria could play a significant role as a surface modifier due to its selective adsorption onto the mineral surface as well as its interaction with collector. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6807
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Code-barres Cote Support Localisation Section Disponibilité 011757 - Périodique Bibliothèque principale Documentaires Disponible Effect of some non functional surfactants and electrolytes on the hexavalent chromium reduction by glycerol : a mechanistic study / Ankita Basu in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 6 (11-12/2011)
PermalinkEffect of surfactants and electrolyte on removal and recovery of basic dye bu using ficus arica cellulosic fibers as biosorbent / Deepak Pathania in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 4 (07-08/2012)
PermalinkEffect of temperature and added counter ions on micelle formation of guanidine surfactants / Yongbo Song in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 5 (09-10/2012)
PermalinkEffective cleaning through a second skin – Why proteins improve cleaning / Matthias Reihmann in SOFW JOURNAL, Vol. 146, N° 3 (03/2020)
PermalinkEffective soil release & bio-based - First of its kind for laundry detergents / Kevin J. Mutch in SOFW JOURNAL, Vol. 146, N° 10 (10/2020)
PermalinkEffects of additives on the phase behavior of an EO/PO-copolymer / Janine Birnbach in SOFW JOURNAL, Vol. 147, N° 3 (03/2021)
PermalinkEffects of alkaline cations on self-assembly of cetylpyridinium surfactants / W. Müller in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 1/2010 (01-02/2011)
PermalinkEffects of electrolytes on interfacial and micelle properties of C. I. reactive orange 16 – dodecylpyridinium chloride binary system / Halide Akbas in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 3/2011 (05/2011)
PermalinkEfficiency of surfactants in pigment dispersion / Pournima Abhijit Salve in PAINTINDIA, Vol. LXVII, N° 9 (09/2017)
PermalinkElectrical properties of PANI/chalcogenide junctions doped with ionic liquids anions / Abdelkader Benabdellah in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 3 (04-05/2012)
PermalinkElectrocatalytic Hydrogenation and Hydrogenolysis of Aromatic Halides by Raney Nickel in the Presence of Different Surfactants / Hocine Ilikti in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 3/2008 (05-06/2008)
PermalinkEngineering an improved cellulase for fabric care in liquid detergents in SOFW JOURNAL, Vol. 142, N° 12 (12/2016)
PermalinkEnhancement of biosurfactant production from pseudomonas cepacia CCT6659 through optimisation of nutritional parameters using response surface methodology / Rita de Cassia in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 50, N° 2 (03-04/2013)
PermalinkEnhancing antimicrobial efficacy of sodium benzoate / Stephen Foster in SOFW JOURNAL, Vol. 146, N° 10 (10/2020)
PermalinkERASM : Joint industry research programmes for the environmental risk assessment of surfactants / J. Steber in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 37, N° 5/2000 (09-10/2000)
PermalinkEvaluation of Physico-Chemical interactions between linear alkylbenzene sulfonate (LAS) and alcohol ethoxylates / F. B. Malihi in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 5 (09-10/2011)
PermalinkExperimental study of surfactant retention on kaolinite clay / Y. Wu in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 5 (09-10/2011)
PermalinkExtraction of Copper(II) from Sulphate Aqueous Medium with N,N′-bis(2-hydroxy-1-naphthalideneaminoethyl)amine polydentate schiff base in aqueous two-phase micellar of non-Ionic surfactant / H. Reffas in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 6/2009 (11-12/2009)
PermalinkFluorescent-tagged double-hydrophilic block copolymer as a green inhibitor for calcium carbonate scales / Guangqing Liu in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 5 (09-10/2012)
PermalinkFluorinated oxetane oligomers as versatile intermediates for polymer modification / Richard R. Thomas in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 201, N° 4558 (03/2011)
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