CIIR/PMAcIPNs阻尼性能  

Damping Properties of Chlorinated Butyl Rubber/Poly(meth)acrylate IPNs

作　　者：王建华[1] 何显儒[2] 黄光速[2] 张俊[3] 赵小东[3] 江璐霞[2] 

机构地区：[1]中国工程物理研究院化工材料研究所绵阳 [2]四川大学高分子科学与工程学院,成都610065 [3]中国工程物理研究院化工材料研究所

出　　处：《应用化学》2005年第4期382-386,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助项目(10276025)

摘　　要：通过以氯化丁基橡胶(CIIR)与聚丙烯酸酯(PMAc)制备互贯聚合物网络(IPNs),实现了将CIIR阻尼功能区向高温区的拓展. DMA测试结果表明,第1网络CIIR的交联剂用量,第2网络聚丙烯酸酯(PMAc)的类型和比率、交联剂种类及用量对阻尼性能有较大影响. 当m(CIIR)∶m(PBMA)为(80～60)∶m(20～40)时,CIIR/PBMA IPNs可形成阻尼平台区(10 Hz下,tanδmax≥0.65,tanδ＞0.3的有效阻尼功能区可从-50 ℃持续至60 ℃);同时CIIR/PEA IPNs具有较高的阻尼值(tanδmax≥1.24);样品的TEM形貌分析表明,CIIR/PMAc IPNs的相畴尺寸在100～200 nm之间,2组分之间具有较好的相容性.The damping functional zone of chlorinated butyl rubber(CIIR) was successfully extended to (higher) (temperature) zone by means of forming interpenetration networks(IPNs) where poly(meth)acrylate was (employed) as the second network. The results from DMA show that in the IPNs, the content of crosslinking (agent) in the first network of CIIR, the ratio between the two components, the type of (meth)acrylate (composing) the second network as well as the type and content of the crosslinking agent in the second network all have significant influence on the damping properties of the IPN. When m(CIIR)∶m(PMAc) was (80~60)∶(20~40), at 10 Hz, CIIR/PEA IPNs exhibited a high damping value with tanδ_(max)≥1.24, while CIIR/PBMA IPNs exhibited a wide damping zone of -45 ℃ to +57 ℃(tanδ≥0.3 ), and a tanδ_(max) of 0.65. The (morphologies) and structures of the IPNs were characterized by means of TEM, and it was found that the CIIR/PBMA IPNs had smaller phase domain size of 100~320 nm, and exhibited a good compatibility between its components.

关 键 词：氯化丁基橡胶 互贯聚合物网络 聚(甲基)丙烯酸酯 阻尼性能 

分 类 号：O631[理学—高分子化学] TQ316.6[理学—化学]