Absorbency / Pronoy K. Chatterjee / Amsterdam [Pays Bas] : Elsevier Scientific Publishing Company (1985)

Titre : Absorbency Type de document : texte imprimé Auteurs : Pronoy K. Chatterjee, Editeur scientifique Editeur : Amsterdam [Pays Bas] : Elsevier Scientific Publishing Company Année de publication : 1985 Collection : Textile science and technology, ISSN 0920-4083 num. 7 Importance : XIV-333 p. Présentation : ill. Format : 25 cm ISBN/ISSN/EAN : 978-0-444-42377-1 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorption Cellulose -- Dérivés Cellulose La cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules. Copolymères greffés Energie de surface liquides Matériaux fibreux Nontissés Textiles et tissus Index. décimale : 677 Textiles Note de contenu : - 1. Fibrous materials - 2. Mechanism of liquid flow and structure property relationships - 3. Surface tension and surface energy - 4. Experimental aspects of fiber wetting and liquid movement between fibers - 5. The role of surfactants - 6. Synthetic and natural polymers - 7. Crosslinked cellulose and cellulose derivatives - 8. Polymer grafted cellulose and starch - 9. The role of nonwoven materials - 10. Technology perspectives Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34501

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
22283	677 CHA	Monographie	Bibliothèque principale	Documentaires	Disponible

Acrylate grafted dehydrated castor oil alkyd : A binder for exterior paints / Subhasri Majumdar in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 879 (04/1998)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 879 (04/1998) . - p. 27-33 Titre : Acrylate grafted dehydrated castor oil alkyd : A binder for exterior paints Type de document : texte imprimé Auteurs : Subhasri Majumdar, Auteur ; Dhirendra Kumar, Auteur ; Y. P. S. Nirvan, Auteur Année de publication : 1998 Article en page(s) : p. 27-33 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion Bateaux -- Revêtements:Bateaux -- Peinture Copolymères greffés Huile de ricin et constituants Huiles et graisses Liants Polyméthacrylate de butyle Résistance aux conditions climatiques Index. décimale : 667.9 Revêtements et enduits Résumé : To meet the requirement of improved durability of alkyd resin for use in weatherwork paint for superstructure of ships, an attempt has been made to chemically modify a castor oil alkyd by graft copolymerization with methyl methacrylate and butyl methacrylate in view of their ability to provide polymers with good exterior durability. Characterization of the experimental resins, in respect to physical properties, was carried out using instruments such as a vapor pressure osmometer, rotational viscometer, universal tensile testing instrument (Instron 1123), and differential scanning calorimeter. Performance of the resins was evaluated using a fluorescent UV accelerated weatherometer and multi-head glossmeter. The results reveal substantial improvement in drying and weather resistance properties of castor oil alkyd on graft copolymerization with both methyl methacrylate and butyl methacrylate. The improvement in these properties is marginally superior in the case of MMA grafted alkyds. MMA modification also enhances the mechanical properties of the grafted castor oil alkyd. Note de contenu : - Chemicals - Synthesis of acrylated alkyd - Characterization of acrylated alkyd resins - Performance evaluation of acrylated alkyd films Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17968 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
003548	-	Périodique	Bibliothèque principale	Documentaires	Disponible

An optimization study of the graft polymerization of HEMA onto leather / R. A. Masoud in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 87, N° 4 (07-08/2003)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 87, N° 4 (07-08/2003) . - p. 159-161 Titre : An optimization study of the graft polymerization of HEMA onto leather Type de document : texte imprimé Auteurs : R. A. Masoud, Auteur Année de publication : 2003 Article en page(s) : p. 159-161 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Allongement à la rupture Copolymères greffés Cuirs et peaux -- Propriétés mécaniques Essais dynamiques Polyméthacrylate d'hydroxyéthyle Traction (mécanique) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : 2-Hydroxyethyl methacrylate (HEMA) has been graft copolymerized onto chrome-tanned leather using benzoyl peroxide in methanol as the initiator. The influence of synthesis variables, including monomer concentration, initiator selection and temperature, have been investigated. As the graft polymerization of HEMA onto chrome- tanned leather was increased, water absorption was reduced and tensile strength and elongation at break improved. FT-IR spectroscopic analysis of ungrafted and grafted leather showed a band at 1735 cm-1 corresponding to the carbonyl of the ester of acrylate (HEMA), while subsequent SEM analysis revealed a decrease in the porosity of the leather surface as a result of the graft polymerization. Note de contenu : - EXPERIMENTAL PROCEDURES : - Materials - Graft polymerization method - Elongation at break - RESULTS AND DISCUSSION : - Effect of benzoyl peroxide [B.P]concentration - Effect of time - Effect of HEMA monomer concentration - IR spectra - Water absorption - Scanning Electron Microscope SEM - Table 1 : Effect of the level of graft polymerization of HEMA onto chrome-tanned leather on water absorption - Table 2 : Effect of the degree of grafting on Tensile strength and elongation at break En ligne : https://drive.google.com/file/d/1o_G0vxMYeHCALuAxQjr_aQrRCkq0lKdW/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39772 [article]

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Anti-aging performance of cardanol grafted onto polypropylene by reactive extrusion / J.-R. Lin in INTERNATIONAL POLYMER PROCESSING, Vol. XXX, N° 3 (07/2015)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXX, N° 3 (07/2015) . - p. 310-316 Titre : Anti-aging performance of cardanol grafted onto polypropylene by reactive extrusion Type de document : texte imprimé Auteurs : J.-R. Lin, Auteur ; J.-H. Lin, Auteur ; Q.-H. Chen, Auteur Année de publication : 2015 Article en page(s) : p. 310-316 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Allongement à la rupture Cardanol Copolymères -- Propriétés mécaniques Copolymères greffés Elasticité Extrusion réactive Polypropylène Résistance à la rupture Résistance des matériaux Index. décimale : 668.4 Plastiques, vinyles Résumé : The cardanol grafted onto polypropylene (CAPP) was prepared by reactive extrusion with polypropylene (PP) and natural renewable cardanol, which could improve the inherent defects of PP such as chemical inertness and hydrophobicity. Moreover, the cardanol grafted onto PP could resolve the degradation of PP during the process of reactive extrusion, storage and application. In this paper, the yield strength, tensile strength, elongation at break of modified and unmodified PPs were tested during the aging process. A possible aging mechanim of PP and anti-aging mechanism of cardanol grafted onto PP were proposed. Results showed that the initiator dicumyl peroxide caused the degradation of PP chains during the aging processing. After being aged for 24 h, the yield strength CAPP0 decreased from 28 MPa to 15 MPa and the elongation at break reduced by 795%. CAPPs possessed outstanding anti-aging performance owing to the cross-linking and entanglement of the side chains of cardanol grafted onto PP. The yield strength, tensile strength and the elongation at break of CAPP5 changed lightly even when it was in long-term irradiation for 480 h. The CAPPs had better anti-aging properties than the mixture of PP and 5% of cardanol. CAPP containing 3% of cardanol could effectively prevent the degradation of the main chain polypropylene. Note de contenu : - EXPERIMENTAL : Materials - Preparation of cardanol grafted onto polypropylene (CAPP) - Mechanical properties testing - RESULTS AND DISCUSSION : Yield strength of cardanol grafted onto polypropylene (CAPP) - Tensile strength of cardanol grafted onto polypropylene (CAPP) - Elongation at break of CAPP - Deduction of aging mechanism - Comparison of aging performance of CAPPs with CAPPm - The effect of cardanol concentration on anti-ageing properties of CAPPs DOI : 10.3139/217.2944 En ligne : https://drive.google.com/file/d/1wZfxne7fYnTZfwfaVmr_nyFDB3gT4KA7/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24325 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
17309	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Antigraffiti polyurethane coating containing fluorocarbon side chains grafted polymethylsiloxane / Hu Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 3 (05/2013)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 3 (05/2013) . - p. 361-369 Titre : Antigraffiti polyurethane coating containing fluorocarbon side chains grafted polymethylsiloxane Type de document : texte imprimé Auteurs : Hu Liu, Auteur ; Baosong Fu, Auteur ; Yi Li, Auteur ; Qianqian Shang, Auteur ; Guomin Xiao, Auteur Année de publication : 2013 Article en page(s) : p. 361-369 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymères greffés Fluoropolymères Hydrosilylation La réaction d'hydrosilylation consiste en l'addition d'une fonction hydrogénosilane (Si-H) sur un composé organique insaturé. Il existe principalement deux méthodes pour mettre en Å“uvre cette réaction : La génération de radicaux silyle : thermiquement (300 °C), par irradiation (rayonnement ultraviolet ou par décomposition de peroxydes ou d'azonitriles. La catalyse par des métaux de transition généralement du groupe VIII. Parmi ces différents catalyseurs employés pour la réaction d'hydrosilylation, les composés à base de platine et plus particulièrement l'acide hexachloroplatinique hexahydraté sont ceux qui présentent la plus grande efficacité1. Ce catalyseur utilisé en très faible quantité et pour des temps de réaction généralement inférieurs à 5 h permet d'atteindre des rendements relativement élevés. Un mécanisme plus récent de l'hydrosilylation a été proposé dans la thèse de Patrick Cancouët sur un polysiloxane porteur de fonction hydrogénosilanes latérales. Polyméthylsiloxane Polyuréthanes Revêtements anti-graffitis Index. décimale : 667.9 Revêtements et enduits Résumé : The novel polymethylsiloxane grafted by fluorocarbon side chains was synthesized via hydrosilylation reaction of polymethylhydrosiloxane (PMHS) with 2,2,3,4,4,4-hexafluorobutyl acrylate (HFBA) in the presence of Karstedt’s catalyst. The reaction factors of reaction temperature, reaction time, catalyst dosage, solvent dosage, and molar ratio of the reactants were investigated through orthogonal experiments. Under optimal conditions, the grafting ratio of HFBA to PMHS reached 91.6%. The structure of the grafted polymer was characterized by FTIR and 1H NMR spectra. The synthesized polymer was incorporated into two-component polyurethane coating formulations as an additive to prepare antigraffiti coatings. After curing, the contact angle measurement was performed and the results showed that surface free energy of the coating film decreased dramatically from 30.7 to 21.4 mJ/m2. The inks of permanent markers cannot spread readily on the coating film and can be removed easily, indicating that the incorporation of the synthesized polymer endowed the coating with admirable antigraffiti performance. XPS analysis revealed that atomic concentrations of silicon and fluorine near the surface (about 10 nm) were much higher than deeper within the film (about 100 nm), suggesting that these two elements had a strong migration tendency toward the coating–air interface. AFM measurement showed that the inclusion of synthesized polymer in coating did not affect the surface roughness of the film. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of PHMS-graft-HFBA (PSF) - Preparation of antigraffiti polyurethane paints (AGPU) - Characterization - RESULTS AND DISCUSSION : Orthogonal experiment design for the synthesis of PSF - Structure characterization - Surface properties of coatings DOI : 10.1007/s11998-012-9452-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9452-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18735 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
15149	-	Périodique	Bibliothèque principale	Documentaires	Disponible
15593	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Application of the experimental results to the modified Halpin-Tsai micromechanical model to evaluate the clay dispersion in clay-reinforced polyethylene nanocomposites / N. Uyanik in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 1 (03/2014)  

Permalink

Characterisation and application of polyurethane copolymers grafted with photoluminescent dyes / Yong Chan Chung in COLORATION TECHNOLOGY, Vol. 130, N° 4 (08/2014)  

Permalink

Collagen modification using nanotechnologies : a review / Deng-Ge Gao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 10 (10/2013)  

Permalink

Comparative effects of mEOC on the structures and properties of PP/SGF and PP/EOC/SGF composite foams / J.-N. Yang in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 3 (07/2016)  

Permalink

Composites of cysteamine functionalised graphene oxide and polypropylene / S. S. Abbas in INTERNATIONAL POLYMER PROCESSING, Vol. 36, N° 3 (2021)  

Permalink

Crystallization behavior of polypropylene-graft-cardanol prepared by reactive extrusion / Q. Chen in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 1 (03/2013)  

Permalink

Cyclic extrusion of recycled high density polyethylene/banana fiber/fly ash cenosphere biocomposites : thermal and mechanical retention properties / Sukanya Satapathy in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 1 (03/2019)  

Permalink

Dérivés de protéines greffés aux silicones / Jones Roger in PARFUMS COSMETIQUES AROMES, N° 109 (01-02/93)

Permalink

Development and characterization of polyurethane and acrylonitrile butadiene styrene and their compatibilized blends / Khaled A. Alfadhel in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 3 (07/2017)  

Permalink

Developments in polymer architecture and design applicable to surface coatings / S. Perrier in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 87, B4 (12/2004)  

Permalink

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM / Cheng-Le Zhao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 2 (04/2006)  

Permalink

Effects of colloidal silica on the properties of POSS-containing fluorinated poly(styrene–acrylate)/SiO2 composite materials / Wenbo Liao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 1 (01/2021)  

Permalink

Effects of montmorillonite content and maleic anhydride compatibilization on the mechanical behavior of polylactide nanocomposites / B. Sari in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 4 (08/2016)  

Permalink

Les élastomères thermoplastiques fluorés / Bruno Améduri in L'ACTUALITE CHIMIQUE, N° 301-302 (10-11/2006)  

Permalink

Enzymatic synthesis of sodium alginate-g-poly (acrylic acid) grafting copolymers as a novel printing thickener / Nan Zhang in COLORATION TECHNOLOGY, Vol. 138, N° 3 (06/2022)  

Permalink

---

1 2 3 4 5 (1 - 20 / 83) Par page : 25 50 Tout afficher