%0 Journal Article
%T NaH/Et3SiCl体系对丁腈橡胶的表面化学修饰
%A 冯 莺
%A 刘顺凯
%A 张翠美
%A 栗敬君
%A 赵季若
%J -
%D 2017
%X 采用氢化钠（NaH）/三乙基氯硅烷（Et3SiCl）体系对丁腈橡胶进行表面化学修饰，得到表面改性的丁腈橡胶（Si-NBR）。改性反应在哈克转矩流变仪中进行，温度控制在90℃，总的反应时间为30min。考察了所得Si-NBR的物理性能、动态力学性能。结果发现，Si-NBR胶料的Payne效应明显降低，填料的网络化效应得到改善，动态压缩疲劳温升和压缩永久变形明显降低。用傅里叶变换红外光谱和凝胶渗透色谱对其进行结构表征，结果表明NBR分子链上成功引入了有机硅基团（-C-Si），该处理过程并没有造成橡胶大分子发生断链、交联等副反应。;The surface chemical modified NBR (Si-NBR) were prepared using NaH as activator and Et3SiCl as modifier by reaction processing method. Reaction temperature and time were 90℃and 30 min respectively. The physical and dynamic mechanical properties of Si-NBR were studied. The results showed that Payne effect of Si-NBR decreased greatly, filler network improved effectively, heat-built by compression fatigue and the dynamic compression set decreased significantly. The structure of Si-NBR was characterized by Fourier transform infrared spectroscopy and gel permeation chromatography. The results demonstrated that the group of -C-Si was successfully introduced into the molecular chains of NBR, the scission and crosslinking of rubber macromolecular chains did not happen in this process
%K [丁腈橡胶
%K 反应加工方法
%K 力学性能
%K 动态疲劳性能
%K 改性
%K 丁腈橡胶
%K 反应加工方法
%K 力学性能
%K 动态疲劳性能
%K 改性
%K Nitrile rubber
%K Reaction processing method
%K Mechanical properties
%K Dynamic fatigue properties
%K modification]
%U http://www.rubbertire.cn/gy/xjgy/ch/reader/view_abstract.aspx?file_no=XJ2015-0342&flag=1