PVC/PG复合材料的制备及性能  

Preparation and Performance of PVC/PG Composite

作　　者：古莘旺 余秋豪 张少虎 杨步雷 鲁圣军[1] 王彩红[2] GU Xinwang;YU Qiuhao;ZHANG Shaohu;YANG Bulei;LU Shengjun;WANG Caihong(School of Chemistry and Chemical Engineering,Guizhou University,Guiyang,Guizhou 550025,China;School of Materials and Metallurgy,Guizhou University,Guiyang,Guizhou 550025,China;Guizhou Kaiphosphor Phosphogypsum Comprehensive Utilization Co.,Ltd.,Guiyang,Guizhou 551109,China)

机构地区：[1]贵州大学,材料与冶金学院,贵州贵阳550025 [2]贵州大学,化学与化工学院,贵州贵阳550025 [3]贵州开磷磷石膏综合利用有限公司,贵州贵阳551109

出　　处：《塑料》2022年第6期6-9,共4页Plastics

摘　　要：将改性无水磷石膏(PG)与聚氯乙烯(PVC)熔融共混制备PVC/PG复合材料,并研究了PG对PVC/PG材料的热稳定性(TS)、力学性能及其熔体流动速率(MFR)的影响。结果表明,PG对PVC的TS的影响较小,但对其力学性能及MFR具有明显的改善效果。其中,PVC/PG(5%)表现出优异的综合性能,断裂伸长率由39.1%增大至87.40%,拉伸强度保持率高达88.42%,与PU相比,MFR较高,有利于PVC的加工和应用。The modified anhydrous phosphogypsum(PG)and polyvinyl chloride(PVC)were melt blended to prepare PVC/PG composite,and the influences of PG on the thermal stability(TS),mechanical properties and melt flow rate(MFR)of PVC/PG materials were explored.The results showed that PG basically had no effect on the TS of PVC,but had a significant improvement effect on the mechanical properties and MFR.Among them,PVC/PG(5%)exhibited excellent comprehensive properties,the elongation at break increased from 39.1%to 87.40%,the retention rate of tensile strength was as high as 88.42%,and the MFR was also higher than that of PVC,which was conducive to the processing and application of PVC.

关 键 词：无水磷石膏 聚氯乙烯 流动速率 热稳定性 力学性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]