PA66/POE-g-MAH/纳米SiO_2复合材料的制备及性能  

Preparation,Mechanical Property and Morphology of PA66/POE-g-MAH/Nano-SiO_2 Composite

作　　者：刘珊[1] 王国全[1] 曾晓飞[1] 崔巧丽[1] 陈建峰[1] 

机构地区：[1]北京化工大学材料科学与工程学院教育部超重力工程研究中心,北京100029

出　　处：《塑料》2010年第1期104-106,共3页Plastics

摘　　要：通过熔融共混的方法制备PA66/POE-g-MAH/纳米SiO2三元共混体系,研究纳米SiO2、POE-g-MAH对PA66力学性能的影响。研究结果表明:POE-g-MAH与纳米SiO2对PA66有协同增韧效应,当PA66/POE-g-MAH/纳米SiO2配比为100/30/0.1时,复合体系的缺口冲击强度达到最大,为纯PA66的10.9倍,为PA66/POE-g-MAH(100/30)二元体系的1.8倍;低温缺口冲击强度也达到最大,为纯PA66的6.3倍。用扫描电镜观察分析冲击断口形态。PA66/POE-g-MAH/nano-SiO2 compasite was prepared by melt blending. The effects of nano-SiO2 and POE-g-MAH on the mechanical property of PA66/POE-g-MAH/nan-SiO2 composite were studied. The results showed that nano-SiO2 and POE-g-MAH had a synergetic toughening effect on PA66. The impact strength of PA66/POE-g-MAH/nano-SiO2 reached the maximum, which was about 10.9 times as high as that of PA66 and 1. 8 times as high as that of PA66/POE-g-MAH （100/30） ,when the mass ratio of PA66/POE-g-MAH/nano-SiO2 composite was 100/30/0. 1. The impact strength of the composite at low temperature was also greatly improved, the maximum was about 6. 3 times as high as that of PA66. The impact fracture of composite was studied by SEM.

关 键 词：PA66 纳米SiO: 马来酸酐接枝乙烯一1一辛烯共聚物 熔融共混 协同增韧 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]