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Sulphide free unhairing - studies on ozone based depilation / Victor John Sundar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 6 (06/2006)
[article]
Titre : Sulphide free unhairing - studies on ozone based depilation Type de document : texte imprimé Auteurs : Victor John Sundar, Auteur ; N. Vedaraman, Auteur ; P. A. Balakrishnan, Auteur ; Subhendu Chakrabarti, Auteur ; Chellappa Muralidharan, Auteur Année de publication : 2006 Article en page(s) : p. 231-234 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cuirs et peaux
Epilage
Oxydation
OzoneIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Sulphide free unhairing has been an active research topic. Oxidative unhairing is gaining attention of researchers. Efficacy of ozone depilation and influence of ozone on the physico - chemical characteristics of the leathers have been studied in detail. The ozone based system leads to complete unhairing and has been found to provide substantial benefits when used for unhairing. En ligne : https://drive.google.com/file/d/1SfckJ_ZjUarRSaNskwW3PX73cSFKt3Gf/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4000
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CI, N° 6 (06/2006) . - p. 231-234[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 005099 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of polyaniline nanofiber and anticorrosion property of polyaniline–epoxy composite coating for Q235 steel / Cheng Yue Ge in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 1 (01/2012)
[article]
Titre : Synthesis of polyaniline nanofiber and anticorrosion property of polyaniline–epoxy composite coating for Q235 steel Type de document : texte imprimé Auteurs : Cheng Yue Ge, Auteur ; Xiao Gang Yang, Auteur ; Bao Rong Hou, Auteur Année de publication : 2012 Article en page(s) : p. 59–69 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Composites
Nanofibres
Oxydation
Polyaniline
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Polyaniline (PANI) nanofibers were prepared by direct mixed oxidation in four kinds of inorganic acids. The characterization of scanning electron microscopy (SEM) showed that high quality PANI fibers with uniform diameter and several microns length can be obtained by direct mixed oxidation, especially in a sulfuric acid system. Structural characteristics of PANI products through IR and UV spectra indicated the consistent peak distribution with the classic spectrum of the doped PANI. In addition, composite coatings of PANI–epoxy resin were prepared by mechanical grinding. The effect of PANI’s content on anticorrosion property of the composite coatings for Q235 steel was studied by the electrochemical impedance spectroscopy (EIS). Results showed that the best shielding protective effect was obtained when the amount of PANI was around 0.5% (wt%). More importantly, the effects of four different inorganic acids on anticorrosion property of the composite coatings were studied by the EIS and Tafel polarization curve. Experiments showed that the different composite coatings of PANI doped by different inorganic acids provided different protective abilities for the Q235 steel. It can be concluded that both the morphology and counter-anion would impact the anticorrosion effect of the doped PANI. Note de contenu : - EXPERIMENTAL : Materials - Preparation of PANI–epoxy resin
composite coating - Characteristics
- RESULTS AND DISCUSSION : Structure characteristic of PANI - The effects of different inorganic acids on product’s
morphology - Effects of the dosage of PANI on film
and anticorrosion property of epoxy resin - Anticorrosion properties of PANIs doped by different acids for Q235 steelDOI : 10.1007/s11998-010-9316-8 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-010-9316-8.pdf?pdf=button Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14355
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 1 (01/2012) . - p. 59–69[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14095 - Périodique Bibliothèque principale Documentaires Disponible Tannery wastewater treatment : conventional and promising processes, an updated 20-year review / Jun Zhao in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 4 (Année 2022)
[article]
Titre : Tannery wastewater treatment : conventional and promising processes, an updated 20-year review Type de document : texte imprimé Auteurs : Jun Zhao, Auteur ; Qinglian Wu, Auteur ; Yuling Tang, Auteur ; Jianfei Zhou, Auteur ; Hongguang Guo, Auteur Année de publication : 2022 Article en page(s) : 22 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adsorption
Coagulation
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Eau -- Epuration -- Traitement biologique
Eaux usées -- Analyse
Eaux usées -- Décontamination
Eaux usées -- Recyclage
Electrochimie
Filtration
Floculation
Oxydation
TannageIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Mismanagement of various wastes especially waste water produced by tanning processes has caused serious environmental problems and ultimately impaired human health. Constant efforts have been making to alleviate the pollution of tannery wastewater (TWW), yet terminal treatment still takes dominance. In this review, research on TWW treatment from 2000 to 2021 was summarized, and main methods such as coagulation and flocculation, adsorption, biological treatment, membrane filtration, advanced oxidation process were briefly discussed. More detailed introduction was given to the method of electrochemical treatment since it has excellent performance such as environmental friendliness and high efficiency, hence attracting more and more research attention in recent years. In view of the harsh physi-chemical conditions of TWW, integrated or combined treatment methods are accordingly recommended with better performance and multi-function, however comprehensive studies on optimization of methods combination and cost-effectiveness are needed. The certain issues that the residue Cr in treatment sludge and high salinity in effluent still remain were put forward in this work and potential solutions were provided. Moreover, this review proposed the perspective that realizing multi-function, recycling, and intensification should be the developing direction for future TWW treatment. This review is expected to provide a general guide for researchers who aspire to ameliorate TWW pollution problems and understand various methods utilized in this field. Note de contenu : - CHARACTERISTICS OF TANNERY WASTEWATER
- TREATMENT FOR TANNERY WASTEWATER : Flocculation and coagulation - Biological treatment - Membrane filtration - Advanced oxidation processes - Electrochemical treatment - Adsorption - Integrated methods
- PROBLEMS TO BE SOLVED AND POTENTIAL SOLUTIONS
- TWW TREATMENT FOR THE FUTURE
- Table 1 Direct discharge standard of treated TWW in different countries
- Table 2 Qualitative comparisons of all TWW treatment methods
- Table 3 Selected reports (2010–2020) related to combined/integrated methods to treat real or synthetic TWWDOI : https://doi.org/10.1186/s42825-022-00082-7 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-022-00082-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37577
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 4 (Année 2022) . - 22 p.[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Tanning with natural polymeric materials. Part 1 : Ecofriendly tanning using dialdehyde sodium alginate / Swarna Vinodh Kanth in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 6 (11-12/2007)
[article]
Titre : Tanning with natural polymeric materials. Part 1 : Ecofriendly tanning using dialdehyde sodium alginate Type de document : texte imprimé Auteurs : Swarna Vinodh Kanth, Auteur ; Balaraman Madhan, Auteur ; M. J. Philo, Auteur ; S. Mithuna, Auteur ; J. R. Rao, Auteur ; B. U. Nair, Auteur Année de publication : 2007 Article en page(s) : p. 252-259 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de tannage
Alginate de sodium dialdéhyde
Caractérisation
Cuirs et peaux -- Propriétés organoleptiques
Cuirs et peaux de chèvres
Oxydation
Réticulation (polymérisation)
Tannage synthétique
Température de retraitIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The characteristics of DSA as a tanning agent have been investigated using DSA prepared by selective periodate oxidation of the natural polymer sodium alginate (SA). Shrinkage temperature and enzyme stability of leathers at varied DSA concentrations, pH, and time were examined, treatment of goatskins gave a maximum shrinkage temperature of 80°C at pH8. The formation of the crosslinks between DSA and the collagen of goatskins gav significant stability to leathers against enzymatic degradation (collagenase). The degree of crosslinking was studied using trinitrobenzene sulphonic acid (TNBS). The degree of crosslinking was found to increase with the increase in degree of oxidation of SA and the concentration of DSA. In this investigation, the properties of DSA tanned leathers are discussed and the tannage optimized. The DSA leathers were compared with chrome-tanned leathers for handle. Note de contenu : - EXPERIMENTAL PROCEDURES : Reagents - Periodate oxidation of sodium alginate - Determination of degree of oxidation - Determination of dialdehyde content - Solubility of DSA - Determination of pH
- TANNING TRIALS USING DSA - EFFECT OF VARIOUS PARAMETERS : Influence of fatliquor - Comparison of DSA leathers with control leathers - Estimation of aldehyde fixed to collagen - Collagenase hydrolysis of the dialdehyde sodium alginate tanned leather - Measurement of degree of crosslinking - Organoleptic properties of tanned leathers
- RESULTS AND DISCUSSION : Characterization of tanning agent - Tanning Trials - Collagenase hydrolysis of DSA tanned leathers - Degree of crosslinking - Handle
- Table 1 : Tanning process using DSA from pickled goat skins
- Table 2 : Tanning process for control leathers
- Table 3 : Post tanning process for leathers tanned with DSA at different oxidation and BCS
- Table 4 : Periodate oxidation of DSA
- Table 5 : Shrinkage temperature, DSA fixation and collagen degradation of delimed pelt and DSA tanned leathers at varying conditions
- Table 6 : Degree of crosslinking of collagen treated with DSA of different oxidation levels/concentrations and pH results for 92% oxidized DSAEn ligne : https://drive.google.com/file/d/1PV7wgVS9JaIyGDMxGkxr3rU2tGiZMsGL/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39008
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 91, N° 6 (11-12/2007) . - p. 252-259[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire The enhanced cationic dyeability of ultraviolet/ozone-treated meta-aramid fabrics / Yuanyuan Dong in COLORATION TECHNOLOGY, Vol. 127, N° 3 (2011)
[article]
Titre : The enhanced cationic dyeability of ultraviolet/ozone-treated meta-aramid fabrics Type de document : texte imprimé Auteurs : Yuanyuan Dong, Auteur ; Jinho Jang, Auteur Année de publication : 2011 Article en page(s) : p. 173-178 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants cationiques
Fibre aramide
Oxydation
Ozone
Photo-oxydation
Rayonnement ultraviolet
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Aramid fabrics were photo-oxidised by ultraviolet/ozone irradiation. The surface properties of the modified fabrics were characterised by reflectance, attenuated total reflectance, electron spectroscopy for chemical analysis and surface zeta potential. The ultraviolet irradiation caused the oxygen content of the aramid fabric surface to increase, with the appearance of carbonyl and hydroxyl groups, and reduced the surface zeta potential, coupled with improved water wettability. Moreover, the crystalline structure did not change after ultraviolet/ozone treatment according to X-ray diffraction results. The modified aramid fabrics showed higher affinity to cationic dyes, which may have resulted from the newly introduced electrostatic interaction between cationic dyes and anionic dyeing sites on the photo-oxidised surface layers. Although colour fastness to both staining and rubbing were good to excellent, colour fastness to shade change was moderate. Furthermore, the ultraviolet/ozone pretreatment and cationic dyeing of aramid fabrics may overcome the loss in the mechanical properties associated with previously recommended dyeing methods for aramid fabrics. Note de contenu : EXPERIMENTAL : Materials and chemicals - Ultraviolet/ozone treatments - Surface characterisation - Mechanical properties - Cationic dyeing - The evaluation of dyeing
RESULTS AND DISCUSSION : Reflectance and scanning electron microscopy analysis - Wettability of aramid fabric - Surface analysis and mechanical properties - Dyeability to cationic dyesDOI : 10.1111/j.1478-4408.2011.00295.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00295.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12200
in COLORATION TECHNOLOGY > Vol. 127, N° 3 (2011) . - p. 173-178[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013033 - Périodique Bibliothèque principale Documentaires Disponible The invisible threat for hair and scalp / Emina Besic Gyenge in SOFW JOURNAL, Vol. 148, N° 4 (04/2022)
PermalinkThe mechanism of fish oil (Engraulis japonica) tanning / Zhou Hualong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 95, N° 6 (11-12/2011)
PermalinkThe physical and chemical disruption of human hair after bleaching – studies by transmission electron microscopy and redox proteomics / A. J. Grosvenor in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 40, N° 6 (12/2018)
PermalinkThe tanning performance of dialdehyde cellulose prepared by electrochemical oxidation system / Hui Chen in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 6 (11-12/2019)
PermalinkThermodynamic consideration on selective surface oxidation of high strength steels prior to hot-dip galvanizing / Fang Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 5 (10/2011)
PermalinkTraitement des micropolluants organiques dans l'eau par des procédés d'oxydation avancée / Mehmet Ali Oturan in L'ACTUALITE CHIMIQUE, N° 277-278 (08-09/2004)
PermalinkPermalinkTypical defects of natural phospholipid fatliquors in leather industry and their solutions / Zhikun Chen in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVI, N° 11 (11/2021)
PermalinkUnderstanding natural ingredients and mildness / Barbara Olioso in PERSONAL CARE EUROPE, Vol. 14, N° 2 (04/2020)
PermalinkVieillissement hétérogène d'un élastomères en ambiance nucléaire - Apport de l'analyse viscoélastique ponctuelle / Patrice Dole / 1995
PermalinkLa voie électrocatalytique en synthèse organique / El Mustapha Belgsir in L'ACTUALITE CHIMIQUE, N° 10 (10/1998)
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