Effect of HAF carbon black filler on chemorheological behavior of poly(acrylic acid) epoxidized natural rubber blend

被引:0
|
作者
Mallick, A [1 ]
Bhattacharya, AK [1 ]
Gupta, BR [1 ]
Tripathy, DK [1 ]
De, SK [1 ]
机构
[1] INDIAN INST TECHNOL,CTR RUBBER TECHNOL,KHARAGPUR 721302,W BENGAL,INDIA
关键词
poly(acrylic acid); epoxidized natural rubber; HAF carbon black; sorption; chemical interaction; free radical acceptor; chemorheology; physical properties; activation energy;
D O I
暂无
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Brabender-mixed blends of poly( acrylic acid) (PAA) and epoxidized natural rubber (ENR) were extruded through the capillary in a Monsanto processability tester, and the capillary pressure versus extrusion time plots were recorded. Constancy in capillary pressure with extrusion time was observed in the case of PAA/ENR blend; but the same blend, filled with HAE carbon black filler, shows a steady increase in capillary pressure with extrusion time. In presence of a free radical acceptor like thiophenol, the rate of capillary pressure rise decreases. Measurements of physical properties, swelling studies, and scanning electron microscopy photomicrography of the extrudates indicates the occurrence of a chemical interaction between physisorbed ENR and chemisorbed PAA. (C) 1997 John Wiley & Sons, Inc.
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页码:135 / 142
页数:8
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