作　　者： ; ;

机构地区： 东华大学材料科学与工程学院纤维材料改性国家重点实验室

出　　处： 《功能材料》 2010年第A03期393-396,共4页

摘　　要： 通过原位复合技术把甲壳型液晶高分子PBPCS分散到核-壳结构的聚丙烯酸酯中制备PBPCS与IPN聚丙烯酸酯三元共混阻尼材料。由IR光谱、TEM透射电镜初步认为PBPCS被包裹在IPN聚丙烯酸酯聚合物中,但PBPCS的加入会影响到核壳粒子结构的正常形态。通过DMA实验得到耗散因子曲线表明,加入PBPCS的三元共混物在高温区的最大耗散因子提高到0.9以上,表明甲壳型液晶高分子PBPCS在一定程度上增加IPN聚丙烯酸酯的阻尼能力,同时从体系中分子链相对运动对这一现象做出解释。 In this paper, the ternary blend damping materials with MJLCP and IPN polyacrylate were prepared by situ composite through dispersing PBPCS into polyacrylate core-shell structure. MJLCP was wrapped in IPN polyacrylate according to IR and TEM experiments, however the adding PBPCS affected the normal morphology of core-shell particle. The dissipation damping factor was determined by DMA, results revealed ternary blends＇ maximum dissipation factor increased above 0. 9 at high temperatures region because of the PBPCS adding, therefore MJLCP can promote the damping performance of IPN polyacrylate, it was caused by the increase of inner friction among PBPCS, MMA, BA macromolecular chains.

关 键 词： 甲壳型液晶高分子 耗散因子 阻尼性能

领　　域： [一般工业技术]