Effect of acrylonitrile content and hydrogenation on properties of hydrogenated nitrile rubber(HNBR) vulcanizates

被引：0

作者：

Zhang, Chenglong ^{[1
]}

Li, Zaifeng ^{[1
]}

Bai, Yanguang ^{[1
]}

Wang, Ning ^{[1
]}

Li, Yanfeng ^{[1
]}

Xiong, Zhaoju ^{[1
]}

机构：

[1] Key Laboratory of Eco-Chemical Engineering of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2013年 / 29卷 / 01期

关键词：

Cyanides - Rubber - Nuclear magnetic resonance - Tensile strength - Glass transition - Molecular weight distribution - Thermal aging;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper, effects of crylonitrile content and hydrogenation on vulcanization characteristics, physical performances, thermal aging performance and thermal properties of hydrogenated nitrile rubber(HNBR) were investigated. Crosslinking density of vulcanizates was tested by the nuclear magnetic resonance (NMR), and crosslinking properties of different types of HNBR rubber were investigated further. Relative molecular weight and molecular weight distribution of raw material were tested by GPC. The relationship between molecular weight distribution and mooney viscosity of rubber was given. The glass-transition temperature is enhanced with an increase in the acrylonitrile content and hydrogenation, and the crosslinking density raises with the increase of the acrylonitrile and double bond content. High unsaturated HNBR shows low break elongation, tear strength, higher stress at 100%, and tensile strength is improved little. With the incensement in crylonitrile content, tensile strength and tear strength are improved, stress at 100% is increased, however, break elongation has little change.

引用

页码：88 / 91