FILLER ELASTOMER INTERACTIONS .4. THE EFFECT OF THE SURFACE ENERGIES OF FILLERS ON ELASTOMER REINFORCEMENT

被引:281
作者
WOLFF, S
WANG, MJ
机构
[1] Degussa AG, Huerth
来源
RUBBER CHEMISTRY AND TECHNOLOGY | 1992年 / 65卷 / 02期
关键词
D O I
10.5254/1.3538615
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Carbon black Nl 10 and a precipitated silica, which have comparable surface area and structure, were selected as model fillers to study the effect of filler surface energies on rubber reinforcement. In comparison with carbon black, the surface energies of silica are characterized by a lower dispersive component, gamma(s)d, and higher specific component. gamma(s)sp. It was found that the high gamma(s)sp of silica leads to strong interaggregate interaction, resulting in higher viscosity of the compounds, higher alpha(f), and higher moduli of the vulcanizates at small strain. The higher gamma(s)d of carbon black, in contrast, causes strong filler-polymer interaction, which is reflected in a higher bound-rubber content of the compounds and higher moduli of the vulcanizates at high elongation.
引用
收藏
页码:329 / 342
页数:14
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