摘要
利用双螺杆挤出机,通过熔融共混工艺制备了聚丙烯(PP)/聚烯烃热塑性弹性体(POE)/无机纳米粒子复合材料。利用扫描电子显微镜(SEM)观察了不同体系的断面形态,并测试了复合材料的力学性能。研究结果表明,对纳米粒子进行表面改性和用适当的共混方法,可以提高复合材料的冲击性能。
PP/POE/nano-particles composites were prepared by meltblending in a twin extruder.Morphology and me- chanical properties of the composites were studied.The results showed that the surface modification and appropriate blending of nano-particales could increase the impact strength of the composite.Analysis of fractured surface proved that the toughening of the composite was due to the stress yielding of the matrix.
基金
山东省优秀中青年科学家科研奖励基金(02BS052)
关键词
聚丙烯
弹性体
无机纳米粒子
复合材料
polypropylene
elastomer
inorganic nano-particle
composites
