摘要
研究了双向拉伸工艺如拉伸温度、拉伸倍数与拉伸速率对超高分子质量聚乙烯(UHMWPE)隔膜结构与性能的影响。结果表明:较低的拉伸温度与较快的拉伸速率更容易导致隔膜均匀拉伸,微孔分布变均匀;反之,较高的拉伸温度与较慢的拉伸速率会造成部分纤维束无法分离,隔膜结构均匀性变差;拉伸倍数增加,微孔结构逐渐被拉开,微孔分布变均匀,穿刺强度、横向/纵向拉伸强度增大。
The effects of biaxial stretching technology such as stretching temperature,stretching ratio and stretching rate on the structure and properties of ultra high molecular weight polyethylene(UHMWPE)microporous membrane were studied.The results show that the lower stretching temperature and faster stretching rate make it easier for the microporous membrane to be uniformly stretched and the micropore distribution to be uniform.On the contrary,higher stretching temperature and slower stretching rate will cause some fiber bundles without separation,and the uniformity of microporous membrane will become worse.With the increase of stretching ratio,the micropore structure is gradually pulled apart,the micropore distribution becomes uniform,and the puncture strength,transverse tensile strength and longitudinal tensile strength increase.
作者
张文阳
吴正文
茆汉军
王新威
ZHANG Wenyang;WU Zhengwen;MAO Hanjun;WANG Xinwei(Shanghai Research Institute of Chemical Industry Co.,Ltd.,Shanghai 200062,China;State Key Laboratory of Polyolefins and Catalysis,Shanghai 200062,China;Shanghai Key Laboratory of Catalysis Technology for Polyolefins,Shanghai 200062,China)
出处
《上海塑料》
2022年第3期1-6,共6页
Shanghai Plastics
基金
上海市科委“扬帆计划”项目(21YF1418200)。
关键词
超高分子量聚乙烯
隔膜
双向拉伸工艺
结构
性能
ultra high molecular weight polyethylene
microporous membrane
biaxial stretching technology
structure
property
作者简介
张文阳(1989—),男,博士,高级工程师,主要从事超高分子量聚乙烯的相关研究;通信作者:王新威(1978—),男,博士,教授级高级工程师,主要从事超高分子量聚乙烯的相关研究,56537858@qq.com。
