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PP/纳米CaCO3发泡板材的性能和泡孔结构的研究
引用本文:陈再良,蔡业彬,王传洋,彭玉成.PP/纳米CaCO3发泡板材的性能和泡孔结构的研究[J].中国塑料,2006,20(6):64-68.
作者姓名:陈再良  蔡业彬  王传洋  彭玉成
作者单位:[1]苏州大学机电工程学院,江苏苏州215021 [2]华南理工大学工业装备与控制工程学院,广东广州615041
基金项目:国家自然科学基金(19632004,10172074),广东省自然科学基金(980573,0401154)
摘    要:利用纳米CaCO3对聚丙烯(PP)的增强增韧作用,采用合理的成型工艺及设备,挤出成型了性能优越的发泡板材。详细研究了CaCO3粒子对板材力学性能的影响,研究表明:纳米CaCO3粒子的含量接近4%时(相对PP),粒子在基体中的分散良好,复合材料的拉伸强度和冲击强度达到最大值;纳米粒子是否经过表面处理,只对材料冲击强度的影响产生不同效果;微米CaCO3粒子含量小于5%时(相对PP),对板材的性能影响很小,但超过该含量后,板材的性能明显下降。

关 键 词:碳酸钙  聚丙烯  发泡板材  力学性能  泡孔结构
文章编号:1001-9278(2006)06-0064-05
收稿时间:2006-04-02
修稿时间:2006-04-02

Properties and Cell Structures of PP/Nano-CaCO3 Foamed Sheet
CHEN Zai-liang, CAI Ye-bin, WANG Chuan-yang, PENG Yu-cheng.Properties and Cell Structures of PP/Nano-CaCO3 Foamed Sheet[J].China Plastics,2006,20(6):64-68.
Authors:CHEN Zai-liang  CAI Ye-bin  WANG Chuan-yang  PENG Yu-cheng
Affiliation:1. College of Mechanical and Electrical Engineering, Soochow University, Suzhou 215021, China; 2. College of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510641, China
Abstract:Nano-CaCO3/polypropylene (PP) foamed sheet was obtained via extrusion. Effects of nano CaCO3 on mechanical properties were investigated. When the content of nano CaCO3 was near 4 phr, both tensile and impact strength showed a maximum. In contrast, the micro CaCO3 had little effect on the mechanical properties when its content was lower than 5 phr, however, strong negative effect above that.
Keywords:CaCO3  polypropylene  foamed sheet  mechanical property  cell structure
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