聚丙烯/磷石膏复合材料性能
单春燕12，张凯12，龙丽娟2，向宇姝2，黄绍文2，李娟2
1.贵州省材料技术创新基地，贵阳 550014； 2.国家复合改性聚合物材料工程技术研究中心，贵阳 550014
The Properties of PP /Phosphogypsum Composites
Shan Chunyan12, Zhang Kai12, Long Lijuan2, Xiang Yushu2, Huang Shaowen2, Li Juan2
1. Guizhou Material Innovation Base, Guiyang 550014, China; 2. National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014, China
摘要：将磷石膏(PG)经过一定的预处理后，按不同质量分数(20%，30%，40%，50%)与聚丙烯(PP)进行熔融共混，制得PP/PG复合材料。通过力学测试、差示扫描量热(DSC)仪、X射线衍射(XRD)仪、热变形温度(HDT)等分析测试，研究不同填充含量的磷石膏对PP结构与性能的影响。结果表明，添加一定量的PG能够提高PP/PG复合材料的韧性。添加不同量的PG使PP/PG复合材料的HDT均有不同程度的提高。PG对PP有异相成核作用，且能够提高PP材料α晶的成核效率。
Abstract：Phosphogypsum (PG) was preprocessed by certain method. PG was fused with polypropylene (PP) in different proportions (20%, 30%, 40%, 50%) to produce PP/PG composite. The influence of different filling content of phosphogypsum on the structure and performance of PP was studied through mechanical properties, differential scanning calorimetry (DSC), X-ray diffraction (XRD), thermal deformation (HDT) and other tests. The results show that a certain amount of PG can improve the toughness of PP/PG composite. The HDT of PP/PG composites with different additives are improved to different degrees. PG has heterogeneous nucleation effect on PP and it can improve the α-crystal nucleation efficiency of PP material.
关键词：聚丙烯；磷石膏；结晶性能；力学性能
Keywords：polypropylene; phosphogypsum; crystallization property; mechanical property
基金：贵州省科技计划项目（黔科合支撑[2019]2867号），黔科合平台人才[2019]5640
本文引用格式：
单春燕，张凯，龙丽娟，等.聚丙烯/磷石膏复合材料性能[J].工程塑料应用，2020，48(12)：11-15.
Shan Chunyan，Zhang Kai，Long Lijuan，et al. The properties of PP /phosphogypsum composites[J]. Engineering Plastics Application，2020，48(12)：11-15.
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