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丁腈橡胶/酚醛树脂/受阻酚AO80三元阻尼橡胶的结构与性能

Yun-feng ZHAO,Ji-hua ZHANG,Shao-xiong YOU,Li-jun HE,Mao-sheng ZHAN

JOURNAL OF AERONAUTICAL MATERIALS（2009）

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Abstract
在丁腈橡胶(NBR)中添加酚醛(PR)和受阻酚AO80,制备NBR/PR/AO80三元共混橡胶.采用DSC,FTIR和扫描电子显微SEM镜等方法表征了NBR/ PR/ AO80三元共混橡胶的结构,研究了其阻尼性能和力学性能.结果表明,AO80与丁腈橡胶和酚醛树脂有较好的相容性,动态力学性能温度谱中损耗角正切tanδ呈现单峰特征,并且随AO80含量增加,三元共混橡胶的阻尼峰值提高;硫化胶的拉伸强度呈现先增加后降低趋势.与NBR/PR硫化橡胶相比,添加AO80的三元共混橡胶保持了几乎相同的阻尼温域,但却具有更高的阻尼峰值.
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Key words
acrylonitrile-butadiene/phenolic resin/hindered
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