文献类型：期刊文献

中文题名：增塑增韧聚丙烯的制备及其性能研究

英文题名：Research on Preparation and Properties of Plasticized and Toughened Polypropylene

作者：周中玉[1];潘泳康[1];唐颂超[1];王庆海[1]

机构：[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室,上海200237

年份：2010

卷号：24

期号：11

起止页码：35

中文期刊名：中国塑料

外文期刊名：China Plastics

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：聚丙烯;液体石蜡;纳米二氧化硅;复合材料;力学性能;结晶性能

外文关键词：polypropylene; liquid paraffin; nano silicon dioxide; composite; mechanical property; crystallization behavior

摘要：以液体石蜡作为聚丙烯(PP)的增塑剂,首先将纳米二氧化硅(SiO2)预先分散于液体石蜡中制成纳米溶胶,然后采用双螺杆挤出机将此溶胶与PP熔融共混制备了增塑增韧PP复合材料,研究了液体石蜡和纳米SiO2对PP力学性能和结晶性能的影响。结果表明,经过液体石蜡增塑后,PP的冲击强度可提高90%;再经过纳米SiO2增韧后,其冲击强度可进一步提高100%;液体石蜡能够提高PP的结晶度,纳米SiO2能够减小PP的球晶尺寸。
Nano silicon dioxide （nano-SiOe） was dispersed into liquid paraffin（LP） forming a nanosol, which was melt blended with PP using a twin-screw extruder resulting in PP composites. The effect of LP and nano-SiO2 content on mechanical properties and crystallization behavior of PP was investigated. By the plasticization and toughening of LP and nano-SiO2, the impact strength of PP composites was 190 % higher than that of neat PP. In addition, it was found that LP increased the crystallinity of PP and nano-SiO2 decreased the spherulite size.