成核剂对聚丙烯微发泡行为及力学性能的影响-陈俊伟.pdfVIP

加工与应用 Vol.40 No.8 (Sum.244) August 2012 文章编号： （ ） 1005-3360 2012 08-0050-04 成核剂对聚丙烯微发泡行为及力学性能的影响 Effect of Nucleating Agent on Micro-foaming Behavior and Mechanical Properties of Polypropylene 陈俊伟，王雷，任凤梅，孙海燕，周正发，徐卫兵(1) Chen Junwei, Wang Lei, Ren Fengmei, Sun Haiyan, Zhou Zhengfa, Xu Weibing(1) - 合肥工业大学化工学院，安徽合肥 230009 - College of Chemical Engineering, Hefei University of Technology, Anhui 230009, China 摘　要 : 将自制的发泡母料添加到共聚聚丙烯(PP)中，采用化学发泡注塑工艺制得微发泡材料。通过SEM和TGA分 析，研究了不同成核剂制得的发泡母料对 微发泡材料力学性能和泡孔行为的影响。结果表明：发泡母料 PP 含量为 时，制得的发泡 复合材料性能优异；以硫酸钙作为成核剂时，所得制品泡孔直径较小，且均匀性 5% PP 最好。 Abstract : The home-made foaming masterbatch were added into co-polypropylene, the microcellular foam PP composite was made through the injection molding process. The influence of different types of foaming masterbatch on the foaming behavior and mechanical properties of PP composites was analyzed by SEM and TGA. The results show that: the properties of PP composite are excellent when the content of foaming masterbatch is 5%; the cell diameter of product is smaller and the homogeneity of cell is the best with the nucleating agent of calcium sulfate. 关键词 : 聚丙烯；发泡行为；力学性能；复合材料 中图分类号 : TQ325.14 文献标识码 : A Key words : Polypropylene; Foaming behavior;