Effect of bimodality on tear properties of silicone networks

被引：24

作者：

Shah, GB ^{[1
]}

Winter, RW ^{[1
]}

机构：

[1] UNIV WALES COLL CARDIFF,DEPT CHEM & APPL CHEM,CARDIFF,S GLAM,WALES

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 1996年 / 197卷 / 07期

关键词：

D O I：

10.1002/macp.1996.021970711

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

The effect of blending a short and a long chain prepolymer, i.e. the effect of biomodality, and that of concentration of the crosslinker on mechanical properties has been investigated. The content of short chain prepolymer was varied from 0 to 80 wt.-%. Different concentrations of crosslinker, 3.9, 9.1 and 12.3 wt.-%, were used for the bimodal mixtures. It was found that the enhancement of tear properties was dependent upon both the bimodality and the amount of crosslinker used for curing. It has been shown that the enhancement cannot be explained in terms of the existing theoretical equations for tear properties.

引用

页码：2201 / 2208

页数：8

共 21 条

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