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功能化聚乙烯对化处理和高氧化/线性低密度聚乙烯复合材料的高填充性质的影响

Rujie Li¹, Shiai Xu^1,2, Jiajun Xu²

¹College of Chemical Engineering, Qinghai University, Xining 810016, China.

|June 10, 2023

概括

无化接种聚乙烯 (PEWM) 增强了高填充氧化 (MH) /线性低密度聚乙烯 (LLDPE) 复合材料的可加工性和机械性能. 低分子量PEWM显著降低粘度,尽管阻燃性受到负面影响.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学

背景情况:

高填充的复合材料往往表现出较差的加工和质性质,由于高填充物负载.
无化接种聚乙烯 (PEWM) 可以作为兼容剂和滑剂来缓解这些问题.

研究的目的:

为了合成和表征具有不同分子量的PEWM.
研究PEWM对氧化 (MH) /线性低密度聚乙烯 (LLDPE) 复合材料的可加工性,机械性能和阻燃性的影响.

主要方法:

用接接种来合成具有不同分子重量的两个PEWM.
福里埃变换红外光谱学 (FTIR) 和酸定位特征PEWM组成和接种度.
氧化 (MH) /LLDPE复合材料 (60重量%MH) 用聚乙烯 (PEW) 和PEWM制备,然后进行平衡扭矩,融化流量指数,限制氧指数 (LOI) 和圆热量计测试 (CCT).

主要成果:

添加PEWM显著提高了MH/LLDPE复合材料的可加工性和流动性,这是平衡扭矩和融化流量指数测试所证明的.
低分子量PEWM导致复合材料粘度大幅降低.
复合材料的机械性能通过添加PEWM来增强.
PEW和PEWM都对复合材料的阻燃性产生了不利影响,LOI和CCT结果表明.

结论:

PEWM是一种有效的添加剂,可以同时提高高填充MH/LLDPE复合材料的可加工性和机械性能.
PEWM的分子量影响其在修改复合材料特性方面的有效性.
可能需要进一步的研究来解决PEWM对阻燃性的负面影响.

关键词:

阻燃性聚合物复合物的阻燃性聚合物复合物.高度填充复合材料的复合材料线性低密度聚乙烯线性低密度聚乙烯氧化是什么? 氧化是什么?马氏无水化物接种的聚乙烯.

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