聚丙烯/粉煤灰微发泡复合材料的制备及发泡性能研究  

Study on preparation and foaming properties of polypropylene/fly ash micro foaming composites

作　　者：朱能贵 沈超 李胜男 曾祥补 蒋团辉[1] 张翔[1] ZHU Nenggui;SHEN Chao;LI Shengnan;ZENG Xiangbu;JIANG Tuanhui;ZHANG Xiang(National Engineering Research Center for Compounding and Modification of Polymer Materials,Guiyang 550022,China)

机构地区：[1]国家复合改性聚合物材料工程技术研究中心,贵阳550022

出　　处：《中国塑料》2022年第1期78-83,共6页China Plastics

基　　金：贵州省自然科学基金资助项目(黔科合基础[2019]1176号);贵州省科研机构服务企业行动计划(黔科服企[2018]4010号);贵州省“千”层次创新型人才培养对象(黔科合平台人才[2019]5634号);贵阳市白云区科技计划项目(白科合同[2019]14号、[2020]36号)。

摘　　要：采用化学微发泡法制备了聚丙烯/粉煤灰(PPFP1919/FA)微发泡复合材料,并对不同FA含量的PPFP1919/FA复合材料的流变性能、发泡质量及力学性能进行研究。结果表明,FA分散在PPFP1919基体中提高了复合材料的熔体强度,使熔体弹性变好,可发泡性提高;FA在发泡过程中还起到了异相成核作用,提供了成核点,从而提高了发泡质量,改善了发泡效果,并且发泡后复合材料的力学性能受到了一定的影响;综合分析可知,当FA含量为10份时,PPFP1919/FA微发泡复合材料的发泡效果最为理想。Polypropylene/fly ash(PPFP1919/FA)micro foaming composites were prepared by chemical micro foaming method,and the rheological properties,foaming quality and mechanical properties of PPFP1919/FA composites with different FA content were studied.The results shows that the dispersion of FA in PPFP1919 matrix can improve the melt strength,melt elasticity and foaming ability of the composites.In addition,FA also plays a heterogeneous nucleation role in the foaming process,providing nucleation point,which improves the foaming quality and foaming effect,and the mechanical properties of the composites after foaming are affected to a certain extent.Comprehensive analysis shows that when FA content was 10 phr,the foaming effect of PPFP1919/FA micro foaming composite is the best.

关 键 词：粉煤灰 聚丙烯 复合材料 发泡性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]