合成材料老化与应用2025，Vol.54Issue(2)：4-7,4.
冷热水管道用PPR材料结构与性能的研究
Structure and Properties of PPR Used as Pipe Resin
余华林 1李艳芳 1郑先伟1
作者信息
- 1. 广东联塑科技实业有限公司,广东省塑料成型加工技术企业重点实验室,广东佛山 528318
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摘要
Abstract
The structure of four kinds of random copolymer polypropylene(PPR-1,PPR-2,PPR-3,and PPR-4),special materials for pipes of different grades,were characterized,the differences in their processing properties were studied,and the mechanical properties of the pipes were tested.The results show that PPR-1 has the smallest relative molecular weight and the narrowest molecular weight distribution,and its pipe has the worst impact resistance;PPR-4 has the largest relative molecular weight and the broadest molecular weight distribution,showing good processability and mechanical property;PPR-3 has a relatively narrow molecular weight distribution,poor processing performance,and poor heat and oxygen aging resistance,making it unsuitable for use as a pipeline material.关键词
PPR/管材专用料/结构/性能Key words
PPR/pipe resin/structure/properties分类
化学化工引用本文复制引用
余华林,李艳芳,郑先伟..冷热水管道用PPR材料结构与性能的研究[J].合成材料老化与应用,2025,54(2):4-7,4.
