大分子增容剂QT523在PVC绝缘电工套管中的应用研究  

Application Research for High Molecular Compatilizer QT523 in PVC Electrical Insulating Conduits

作　　者：李向荣[1,2] 郑玉婴[1] 

机构地区：[1]福州大学材料科学与工程学院,福建福州350108 [2]泉州兴源塑料有限公司,福建泉州362262

出　　处：《塑料工业》2014年第8期127-130,共4页China Plastics Industry

摘　　要：在传统配方的基础上,以大分子增容剂QT523(氯乙烯-丙烯酸酯共聚接枝端胺基环氧丙烷/高级脂肪酸酯复配物)作为聚氯乙烯(PVC)/氯化聚乙烯(CPE)/碳酸钙(CaCO3)三元共混体系的界面改性剂,通过双螺杆挤出机挤出制备了规格为GY.305-20的建筑用PVC绝缘电工套管并进行相关性能检测。结果表明,与原配方相比,改进配方中QT523的加入有效促进了PVC树脂的塑化,提高了共混物料相互间的相容性和分散性,用2.5 phr QT523代替CPE,并增加碳酸钙12.5 phr,所生产的PVC绝缘电工套管的性能指标符合JG 3050—1998标准的要求,产品韧性比原配方略有提高,且成本更低。Using high molecular compatilizer QT523 （vinyl chloride-acrylate copolymer grafted amineterminated propylene oxide/fatty acid ester compound material） as interfacial modifiers of PVC/CPE/CaCO3 ternary blends,PVC electrical insulating conduits GY305-20 was prepared by a twin screw extruder,and then relevant performance were tested.The experiment results showed that,compared with the original formulation,the high molecular compatilizer in QT523 effectively promoted the plasticizing of PVC,and also improved the compatibility and dispersion of the blending materials.With 2.5 phr QT523 instead of CPE135A,and increase calcium carbonate 12.5 phr,the production of PVC electrical insulating conduits could meet the requirements of JG 3050-1998 standard,and the toughness of the pipes was better,as well as lower cost.

关 键 词：聚氯乙烯 电工套管 增容剂 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]