硅藻土含量和粒径对填充PP冲击强度影响  

Effects of Diatomite Powder Content and Its Particle Size on Impact Strength of Filled PP Composites

作　　者：梁基照[1] 彭万[1] 

机构地区：[1]华南理工大学工业装备与控制工程学院,广东广州510640

出　　处：《现代塑料加工应用》2007年第3期35-37,共3页Modern Plastics Processing and Applications

摘　　要：测量了3种不同粒径的硅藻土填充聚丙烯(PP)复合材料室温下的冲击强度。结果表明,硅藻土对填充PP复合材料缺口冲击强度的影响明显;当硅藻土体积分数(φ)小于5％时,缺口冲击强度随硅藻土体积分数φ的增加而迅速提高,然后趋于平缓;当φ为10％时,粒径为7μm的硅藻土填充PP复合材料的缺口冲击强度最高。The impact strength of polypropylene composites filled with three kinds of diameter diatomite was measured at room temperature. The results show that the influence of diatomite on the notched impact strength is signifieant. The notched impact strength increases quickly with increasing of the volume fraction of the diatomite （φ）, and then the variation is slight. The notched impact strength of the composite with the diatomite diameter of 7μm is the highest when φ was 10 %.

关 键 词：聚丙烯 硅藻土 改性 冲击性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]