塑料科技2023，Vol.51Issue(12)：38-42,5.DOI:10.15925/j.cnki.issn1005-3360.2023.12.008
流动改性剂对超高分子量聚乙烯流变性能的影响
Effect of Flow Modifier on Rheological Properties of Ultra-High Molecular Weight Polyethylene
朱鹤翔 1孙小杰 1江猛 1李亚飞1
作者信息
- 1. 北京低碳清洁能源研究院,北京 102211
- 折叠
摘要
Abstract
By adding high-density polyethylene and self-made flow modifiers,the dynamic rheological properties of ultra-high molecular weight polyethylene were studied.The results show that the addition of high-density polyethylene and a small amount of flow aid can significantly increase the MFR of the ultra-high molecular weight polyethylene from less than 0.01 g/10 min to 1.5 g/10 min.The addition of the flow modifier does not affect the molecular weight and chain structure of the blends,but it can significantly reduce the molecular chain entanglement,shorten the molecular chain relaxation time,and help the extrusion processing of the blends.The blends of high-density polyethylene and ultra-high molecular weight polyethylene have good compatibility.As the content of high-density polyethylene in the blends increases,the bending modulus increases,and the notch impact strength does not change much.However,the compatibility between flow modifiers and blends is poor,and the notch impact strength rapidly decreases with the increase of flow modifier content.关键词
超高分子量聚乙烯/动态流变性能/力学性能Key words
Ultra-high molecular weight polyethylene/Dynamic rheological properties/Mechanical properties分类
化学化工引用本文复制引用
朱鹤翔,孙小杰,江猛,李亚飞..流动改性剂对超高分子量聚乙烯流变性能的影响[J].塑料科技,2023,51(12):38-42,5.
