Extensional and adhesion characteristics of a pressure sensitive adhesive

被引:17
作者
Ferguson, J [1 ]
Reilly, B [1 ]
Granville, N [1 ]
机构
[1] SMITH & NEPHEW GRP,RES CTR,YORK YO1 5DF,N YORKSHIRE,ENGLAND
关键词
adhesives; extensional rheology; polymers;
D O I
10.1016/S0032-3861(96)00574-5
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The extensional viscosity characteristics of a terpolymer synthesized from acrylic acid, n-butyl acrylate and 2-ethyl-hexyl acrylate and used as a pressure sensitive adhesive, have been examined. By using a tensile test instrument it has been shown to be possible to generate three-dimensional plots of instantaneous extensional viscosity, Hencky strain and time of extension. The terpolymer was found to be strain hardening. During extension it also formed fibrils due to partial failure of the adhesive bond with an aluminium surface. The generation of the fibrils could be related to rate of extension and hence to the strain hardening behaviour. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:795 / 800
页数:6
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