摘要
采用序列法制备氢化丁腈橡胶（HNBR）/聚甲基丙烯酸酯互穿聚合物网络（IPN）阻尼材料。IPN体系的红外曲线在1750-1700cm^-1及1190-1150cm^-1范围内出现了较强的特征峰,可以证明聚甲基丙烯酸酯的存在。物理机械性能表明,随着甲基丙烯酸酯的酯基体积增大,IPN的硬度、拉伸强度及100%定伸强度减小。动态性能表明HNBR与聚甲基丙烯酸酯形成的IPN体系能够拓宽HNBR的阻尼温度范围。HNBR/聚甲基丙烯酸正丁酯IPN的阻尼因子较高,适用于约束阻尼系统,而HNBR/聚甲基丙烯酸甲酯IPN具有较高的损耗模量和适宜的阻尼因子,适于自由阻尼系统。
Sequential interpenetrating polymer networks （IPNs） based on hydrogenated nitrile rubber （HNBR） and various polyalkyl methacrylates were synthesized. Infrared （IR） spectroscopy showed that there were strong absorbing peaks at 1750-1700cm ^-1and 1190 1150cm^-1 , suggesting the successful synthesization of polyalkyl methacrylates. With increasing in bulkiness of the ester group of the acrylates the hardness, tensile strength,and 100 % modulus decreased because of decreased stiffness of the acrylate phase. Dynamic mechanical thermal analysis proved that IPNs could broaden the damping peaks. HNBR/PBMA IPN had a higher tanδ indicating that it would be suitable to be used in a constrained layer damping system and HNBR/PMMA might be preferable for extensional damping system with higher modulus and reasonable tanδ.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2009年第12期1-4,16,共5页
Journal of Materials Engineering
关键词
氢化丁腈橡胶
聚甲基丙烯酸酯
互穿聚合物网络
阻尼性能
hydrogenated nitrile rubber
polymethacrylate
interpenetrating polymer network
damping property
