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功能化的SEBS对PP/SEBS混合物的性能的影响

Lixin Song^1,2, Fei Cong^1,2, Wei Wang³

¹Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China.

|September 28, 2023

概括

草甘甲酸盐 (GMA) 和 styrene (St) 的增强型聚烯 (PP) 和化 styrene-butadiene-styrene (SEBS) 混合物的移植共聚合物. 使用3%重量的GMA可以达到最佳的性,从而提高了兼容性和机械性能.

科学领域:

聚合物科学聚合物科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

聚烯 (PP) 和化 styrene-butadiene-styrene (SEBS) 是广泛使用的聚合物.
提高PP/SEBS混合物的兼容性和机械性能对于先进的应用至关重要.
移植共聚合物提供了一个有前途的途径,使不可混合的聚合物混合物兼容.

研究的目的:

使用 styrene (St) 和 glycidyl methacrylate (GMA) 合成 SEBS-g-(GMA-co-St) 移植共聚合物.
研究这些移植共聚合物的作用,作为PP/SEBS混合物中的兼容剂.
分析GMA含量对混合物的热,,光学和机械性能的影响.

主要方法:

在 SEBS 上将 GMA 和 St 融化接种,形成 SEBS-g-(GMA-co-St) 接种共聚合物.
融化混合PP,SEBS和合成的移植共聚合物.
混合物属性的表征,包括热分析,风学,结晶,光学测量和机械测试.

主要成果:

证实了GMA和St在SEBS上成功移植.
移植共聚合物中的GMA含量显著影响了混合物特性.
通过界面化学结合实现了PP和SEBS之间的增强兼容性.
结晶性下降,晶体大小增加,传导率保持高 (>91%) 与增加的GMA含量.
最佳的性,以高形冲击强度和破裂时的延长为特征,在3重%的GMA中观察到.

结论:

SEBS-g-(GMA-co-St) 作为PP/SEBS混合物的有效兼容剂.
GMA的环氧基在形成界面键和改善混合物特性方面发挥着关键作用.
该研究展示了一种方法来定制PP/SEBS混合物的特性,以提高性能.

关键词:

这就是为什么PPPPPPPPPPPPPP 在SEBS中,SEBS是SEBS.SEBS-g-(GMA-co-St) 接种共聚合物的接种共聚合物.兼容性兼容性兼容性的兼容性机械性能机械性能机械性能

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