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Graft polymerization. III. Some properties of the leather obtained from the graft polymerization of vinyl monomers onto chrome-tanned nigerian hairsheep / Edward H. Harris in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXIX (Année 1974)

[article]
inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXIX (Année 1974) . - p. 182-194

Titre :	Graft polymerization. III. Some properties of the leather obtained from the graft polymerization of vinyl monomers onto chrome-tanned nigerian hairsheep
Type de document :	texte imprimé
Auteurs :	Edward H. Harris, Auteur ; Maryann M. Taylor, Auteur ; Stephen H. Feairheller, Auteur
Année de publication :	1974
Article en page(s) :	p. 182-194
Note générale :	Bibliogr.
Langues :	Américain (ame)
Catégories :	Copolymères greffés Cuirs et peaux -- Propriétés chimiques Cuirs et peaux -- Propriétés physiques Cuirs et peaux de moutons Extraction par solvant polymères vinyliques
Index. décimale :	675 Technologie du cuir et de la fourrure
Résumé :	This study reports the physical and chemical properties of chrome-tanned sheepskins after graft polymerization with 12 vinyl monomers, alone or in combinations. These graft copolymers (collagen plus syn¬thetic polymer) can be made to contain as much as 50 percent by weight of synthetic polymer and still have the natural appearance of leather. This work indicates that these increased quantities of grafted synthetic polymer modify leather to a proportionally greater degree. The type of modification depends on the nature of the grafted synthetic polymer. Increases in thickness, up to 93 percent, are obtained without apparent loss in area. Stretch was increased except when methacrylates or styrene were grafted. Break Joad increased in all but two examples. Since the thickness usually increased to a greater degree than the break Joad, the tensile strength was not always increased, although the leather was actually stronger.
Note de contenu :	- Materials and procedures - Preparation for physical testing - Physical tests - Analyses - Polymer extractability with stoddard solvent (simulated drycleaning - Table 1 : Monomers investigated - Table 2 : Properties of grafted copolymers - Table 3 : Polymer extractability with stoddard solvent
En ligne :	https://drive.google.com/file/d/1bb2r8RjkzsQ1dkB10U4OWTAIM24YNC73/view?usp=drive [...]
Format de la ressource électronique :	Pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41364

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