A comparison of white rice husk ash and silica as fillers in ethylene-propylene-diene terpolymer vulcanizates

被引：60

作者：

Siriwardena, S ^{[1
]}

Ismail, H ^{[1
]}

Ishiaku, US ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Ind Technol, Minden 11800, Penang, Malaysia

来源：

POLYMER INTERNATIONAL | 2001年 / 50卷 / 06期

关键词：

ethylene-propylene-diene terpolymer; filler reinforcement; silica; white rice husk ash;

D O I：

10.1002/pi.691

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

White rice husk ash (WRHA) and silica filled ethylene-propylene-diene terpolymer (EPDM) vulcanizates were prepared using a laboratory size two-roll mill. Curing characteristics and physical properties of vulcanizates were studied with respect to the filler loading and filler type. Filler loading was varied from 0-50 parts per hundred resin (phr) at 10phr intervals. Curing was carried out using a semi-efficient vulcanization system in a Monsanto rheometer. Enhancement of the curing rate was observed with increasing WRHA loading, whereas the opposite trend was observed for silica-filled vulcanizates. It was also indicated by the maximum torque and Mooney viscosity results that WRHA offers processing advantages over silica. Compared to the silica-filled vulcanizates, the effect of filler loading on the physical properties of WRHA-filled vulcanizates was not significant. According to these observations, WRHA could be used as a diluent filler for EPDM rubber, while silica can be used as a reinforcing filler. (C) 2001 Society of Chemical Industry.

引用

页码：707 / 713

页数：7

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