A comparative study of various collagen fibre waste as oil sorbent materials / Weining Du in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 99, N° 6 (11-12/2015)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 99, N° 6 (11-12/2015) . - p. 267-272 Titre : A comparative study of various collagen fibre waste as oil sorbent materials Type de document : texte imprimé Auteurs : Weining Du, Auteur ; Han Xiaona, Auteur ; Li Zhengjun, Auteur ; Sun Guolong, Auteur ; Li Lixin, Auteur Année de publication : 2015 Article en page(s) : p. 267-272 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbants et adsorbants Collagène Cuirs et peaux -- Déchets -- Recyclage Epoxydes Huile de colza Huiles et graisses Hydrophobie Nettoyage Oligomères Polydiméthylsiloxane Le polydiméthylsiloxane —[O-Si(CH3)2]n—, ou poly(diméthylsiloxane) selon la nomenclature systématique, communément appelé PDMS ou diméthicone, est un polymère organominéral de la famille des siloxanes souvent présent dans les shampoings. On l'y ajoute pour augmenter le volume des cheveux mais il peut également aller boucher les pores du cuir chevelu et rendre les cheveux gras. C'est une des raisons pour lesquelles se laver les cheveux tous les jours est très déconseillé avec un shampooing contenant des silicones. Il existe également de l'amodiméthicone, qui est un dérivé du diméthicone. Le polydiméthylsiloxane est un additif alimentaire (E900), utilisé comme antimoussant dans les boissons (Coca-Cola BlāK). La chaîne de poly(diméthylsiloxane) forme également la structure de base des huiles et des caoutchoucs silicones. Poudre de peaux Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : To compare the potentiel utilization of various collagen fibre wastes from the leather industry, such as raw hide waste, oil-tanned and chrome-tanned wastes, as oil sorbents, a hydrophobic polydimethylsiloxane (PDMS) modified collagen fibre was prepared using raw hide waste and an epoxy-terminated silicone oligomer. We fabricated samples 13y a lyophilization technique utilizing the corresponding hide powder fibre (HPF). The oil sorption capacity, sorption saturation time, and retention capacity of prepared sorbents were studied. The results showed that oil sorption capacity of PDMS-modified HPF for silicone oil and vegetable (rape) oil were 6.98 and 5.58g/g, respectively. This sample exhibited the highest oil sorption capacity. The resuits suggest that with appropriate pore size, high porosity and low apparent surface energy, collagen fibre based sorbent would demonstrate favourable oil sorption characteristics and is very promising for ail cleanup application. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Preparation of hide powder fibres (HPFs) and PDMS-modified HPF - Preparation of pie-shaped HPF sorbents - Oil sorption capacity - Oil sorption saturation time - Oil retention capacity - Characterizations - RESULTS AND DISCUSSION : Oil sorption capacity in pure oil medium - Oil sorption saturation time - Oil retention capacity En ligne : https://drive.google.com/file/d/1gdQCSjGxM_TPnqo-uzetB6n3UyHHkflr/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25097 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
17683	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Improvement in tanning properties of natural leather through surface modification assisted by CO2 low-temperature plasma / Fangming Liu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 1 (01/2018)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIII, N° 1 (01/2018) . - p. 26-33 Titre : Improvement in tanning properties of natural leather through surface modification assisted by CO2 low-temperature plasma Type de document : texte imprimé Auteurs : Fangming Liu, Auteur ; Yuanping Jiang, Auteur ; Wenlan Xu, Auteur ; Zhengjun Li, Auteur ; Li Lixin, Auteur Année de publication : 2018 Article en page(s) : p. 26-33 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Chrome trivalent -- Absorption Cuirs et peaux Cuirs et peaux -- Propriétés mécaniques Cuirs et peaux -- Propriétés organoleptiques Stabilité hydrothermale Tannage au chrome Technique des plasmas Traîtements de surface Wet-blue (tannage) Peau tannée au chrome (le chrome donne une couleur bleue) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Low temperature plasma (LTP) technology is a green, solvent-free, clean, efficient environment-friendly surface treatment technology. The pioneering works were carried out by applying LTP to surface modification of natural leather in order to improve the chrome tanning exhaustion rate. The effects of different treatment time on tanning exhaustion rate, micro-structure, chemical compositions, mechanical and organoleptic properties of leather were studied. The optimal CO2 plasma treatment time is about 10 min, at which the chrome tanning exhaustion rate increases from 78.49% to 91.82% compared with untreated leather. The SEM results show that some micro-pores, fissures, deep ravines and filamentous fibers can be observed due to the surface etching effect. From the XPS analysis, compared with the untreated leather, the O1s concentration and the O1s/C1s ratio of the 10min LTP modified leather both increase from 18.75% to 28.85% and from 0.258 to 0.479, respectively. The results show that appropriate LTP process can effectively improve the chrome tanning exhaustion rate, which reduces the emission of heavy metal chromium in waste liquor and also has a good synergistic effect on improving the comprehensive performance of leather such as hydrothermal stability, physical-mechanical and organoleptic properties. The LTP modification technology may be a new potential method for cleaner high-exhaustion chrome tanning technology. Note de contenu : - EXPERIMENTAL : Materials - LTP treatment - Chrome tanning - Characterization and performance test - Mechanical properties test - Organoleptic properties test - RESULTS AND DISCUSSION : The effect of LTP treatment on chrome tanning absorption rate and the hydrothermal stability of wet blue - Surface morphology observation of leather - XPS analysis - The mechanism of applying LTP technology to tanning process - Mechanical property - Organoleptic property En ligne : https://drive.google.com/file/d/1EM7noWdiA1YqRbHNmjib-7EZiGTBA5kg/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29749 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
19487	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Influence of fatliquoring on flammability of leather / Huang Zan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 4 (07-08/2006)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 90, N° 4 (07-08/2006) . - p. 155-158 Titre : Influence of fatliquoring on flammability of leather Type de document : texte imprimé Auteurs : Huang Zan, Auteur ; Li Lixin, Auteur ; Wuyong Chen, Auteur ; Haibing Gui, Auteur Année de publication : 2006 Article en page(s) : p. 155-158 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Teneur en matières grasses Cuirs et peaux de porcs Essais de comportement au feu Huiles et graisses -- Propriétés physiques Huiles sulfatées Huiles sulfitées Inflammabilité Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The influences of seven kinds of oils on the flammability of pig chrome leather have been studied. The flammability of the fatliquored leathers was evaluated by the vertical flame test and Oxygen Index Test. The results show that the 7 oils increase the fire resistance of leather. The effect is especially shown by sulphated oils which have a more apparent effect than sulphited oils. The leathers which were fatliquored with sulphited fish oil, sulphated neatsfoot oil and lecithin have a stronger glow resistance than the leathers either not fatliquored or treated with other oils. The results should supply a basis for the preparation of fire-resistant leather. Note de contenu : - EXPERIMENTAL PROCEDURE : Materials - Methods of test - Preparation of fatliquored leather samples - Determination of fat content in leather - Sampling for oxygen index test and vertical flame test - RESULTS AND DISCUSSION : Physical properties of fatliquors - Fat content of fatliquored leather - Flammability of fatliquored leather - Vertical flame test - Oxygen Index - Table 1 : Retanning process - Table 2 : Fatliquoring process - Table 3 : Properties of fatliquoring agents - Table 4 : Flammability of the leathers fatliquored with different oils - Vertical Flame Test and Oxygen Index En ligne : https://drive.google.com/file/d/1PGJhjcFnHkP0-2CYpqXwIit-bun4AVgb/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39113 [article]

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Influence on rex rabbit hair by low-temperature plasma in different gas media / Zhang Meina in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 2 (03-04/2019)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 103, N° 2 (03-04/2019) . - p. 91-98 Titre : Influence on rex rabbit hair by low-temperature plasma in different gas media Type de document : texte imprimé Auteurs : Zhang Meina, Auteur ; Liu Hongyan, Auteur ; Li Lixin, Auteur ; Zhang Zongcai, Auteur Année de publication : 2019 Article en page(s) : p. 91-98 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Basses températures Brillance (optique) Colorants acides Colorimétrie Fixation (chimie) Fourrures -- Propriétés mécaniques Fourrures -- Teinture Frottements (mécanique) Lapins Mesure Spectroscopie de photoélectrons Technique des plasmas Index. décimale : 675.3 Technologie de la fourrure Résumé : In order to find out changes of the Rex rabbit hair under different Low Temperature Plasma (LTP) treatments, Rex rabbit hair fibres which were modified by oxygen, nitrogen, and air plasma, were examined by XPS, ultraviolet-visible spectrophotometery, Lab-eye software, HP-386 multi-angle gloss meter, YM-06A electronic single fibre strength meter, as well as by a Y151 fibre friction coefficient tester. The results show that oxygen plasma, nitrogen plasma and air plasma can all dramatically enhance exhaustion and fixation rate of Rex rabbit hair during dyeing. Treatment with air plasma and nitrogen plasma introduced more -NH2 to the surface of Rex rabbit hair fibres, promoting the reaction between -N1-12 and -SO3H of an anionic dyestuff in an acidic medium. Besides, the oxidation of oxygen plasma introduces polar functional groups such as hydroxyl or carbonyl, thus improving the hydrophilicity of Rex rabbit hair fibres. Compared with fibres without plasma treatment, the dyeing depth of fibres treated with oxygen, air, and nitrogen plasma has been significantly enhanced. ln addition, the rupture strength and elongation as well as glossiness of fibres reduces to a slight extent after LTP treatment with oxygen, nitrogen, and air. Ultimately, after oxygen, air and nitrogen plasma, the gap between the friction coefficients of against and along scale is narrowed, which can enhance the ability of the anti-felting performance. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Low-temperature plasma treatment - Dyeing process - Exhaustion and fixation rate measurement - XPS analysis - Colour measurement - Glossiness and strength measurement - Coefficient of friction determination - RESULTS AND DISCUSSIONS : Exhaustion and fixation rate - XPS analysis - Effect of LTP treatment on the glossiness and strength of Rex rabbit hair fibre - Effect of LTp treatment on the friction coefficient of Rex rabit wool fibre - Table 1 : Exhaustion and fixation of different samples dyed with anionic dyestuff - table 2 : Element analysis of LTP trated Rex rabbit hair fibres - Table 3 : The functional group content of Rex rabbit hair fibre - Table 4 : The influence of LTP treatment on the strength of the fibres - Table 5 : The influence of low-temperature plasma treatment on the friction coefficient of the fibres En ligne : https://drive.google.com/file/d/1JD27EmIpv-vh44OuM1dkP3JhAoz5JUlR/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32306 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
20855	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Modification of collagen fibre and clean chrome tanning technology using low temperature plasma / Yang Jinwei in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 6 (11-12/2012)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 6 (11-12/2012) . - p. 246-249 Titre : Modification of collagen fibre and clean chrome tanning technology using low temperature plasma Type de document : texte imprimé Auteurs : Yang Jinwei, Auteur ; Li Bo, Auteur ; Gou Li, Auteur ; Ling Huijiao, Auteur ; Luo Mingliang, Auteur ; Li Lixin, Auteur Année de publication : 2012 Article en page(s) : p. 246-249 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Carbonylation Carboxylation Collagène Oxygène Tannage au chrome Technique des plasmas Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Chrome is a serious pollutant in the environment due to its toxicity and the low utilization inchrome tanning. To study the effect of low temperature plasma (LTP) on the absorption of chrome in tanning process, oxygen plasma was used to modify pickled skin. Scanning electron microscopy (SEM) was used to observe the surface morphology changes of wet-blue leather due to LTP treatment. The analysis by X-ray photoelectron spectroscopy (XPS) showed that the oxygen content of the pickled skin and the chromium content of the tanned leather increased remarkably. White hide powder (collagen fibre mimic) was modified by LTP and it was shown that the amount of carboxyl and carbonyl groups on the fibre surface increased significantly. The increase in oxygen-containing groups such as carboxyl, carbonyl, thus increased the content of combined chrome. Therefore, LTP will provide a new exploratory method for high-exhaustion chrome tanning technology. As this is a new applcation opportunities are limited due to the lack of suitable industrial equipment which will need to be developed. The new application is allied to that described in 'Study of unhairing with LTP4 which was presented at the 7th Asian Conference of Leather Science and Technology. Note de contenu : - EXPERIMENTAL : Equipment - Experimental method - Characterization and performance test - RESULTS AND DISCUSSION : The effect of LTP on wet-blue leather surface topography - The effect of LTP on chromium content combined with leather - The effect of LTP on white hide powder chermical groups En ligne : https://drive.google.com/file/d/1PcP-HxF7B1fTZRJsBERE67ye8J6dha71/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16804 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
14414	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Performance of flame retardants on leather / Huang Zan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 6 (11-12/2005)  

Permalink

The redox reaction between catechin and potassium dichromate - Influences and its kinetic character / Wang Ying Hong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 1 (01-02/2005)  

Permalink

The synthesis and application of a high performance amino resin nanocomposite as leather flame retardant / Ling Huijiao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 1 (01-02/2012)  

Permalink

Thermal degradation kinetics and flame retardancy of hide treated with montmorillonite-amno resin nano-composite / Yang Liutao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 1 (01-02/2010)  

Permalink

---

1 (1 - 9 / 9)