受阻酚AO-60/丁腈橡胶复合材料的结构与动态力学性能

复合材料学报, 2010, 27(6): 26-31.

受阻酚AO-60/丁腈橡胶复合材料的结构与动态力学性能

赵秀英 ^1, , 宋洪松 ^2, , 田斌 ^3, , 刘庆生 ^4, , 张立群 ^5,

1.北京化工大学北京市新型高分子材料制备与加工重点试验室,北京,100029

2.北京化工大学北京市新型高分子材料制备与加工重点试验室,北京,100029

3.船舶系统工程研究所,北京,100036

4.北京化工大学北京市新型高分子材料制备与加工重点试验室,北京,100029

5.北京化工大学北京市新型高分子材料制备与加工重点试验室,北京,100029

基金项目: 国家杰出青年科学基金资助项目(50725310)

关键词：丁腈橡胶 , 受阻酚 , 氢键 , 动态力学性能 , 阻尼性能

Structure and dynamic mechanical properties of hindered phenol AO- 60 /nitrile- butadiene rubber composites

在丁腈橡胶(NBR)中添加受阻酚AO-60制备受阻酚/丁腈橡胶复合材料.利用DSC、SEM、动态力学分析仪(DMA)等测试手段对该复合材料的结构进行了表征,并研究了其动态力学性能.结果表明:AO-60在不同的NBR基体中的分散情况不同.在丙烯腈质量分数为35%的NBR基体(N230S)中,AO-60形成了精细的分散结构,且与NBR大分子之间形成了强烈的分子间作用力,两相相容性好.与纯NBR基体相比,AO-60/NBR复合材料的玻璃化转变温度(Tg)随着AO-60含量的增加逐渐升高,损耗因子(tanδ)逐渐增大,阻尼性能提高.同时,AO-60/N230S复合材料表现出更好的阻尼性能.

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