Super Tough PA6/PP/ABS/SEBS Blends Compatibilized by a Combination of Multi-Phase Compatibilizers.

IF 3.1 3区材料科学 Q3 CHEMISTRY, PHYSICAL

Materials Pub Date : 2024-11-02 DOI:10.3390/ma17215370

Jianhui Yan, Cuifang Wang, Tongyu Zhang, Zijian Xiao, Xuming Xie

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引用次数: 0

Abstract

Development of multi-component blends to prepare high-performance polymer materials is still challenging, and is a key technology for mechanical recycling of waste plastics. However, a multi-phase compatibilizer is prerequisite to create high-performance multi-component blends. In this study, POE-g-(MAH-co-St) and SEBS-g-(MAH-co-St) compatibilizers are prepared via melt-grafting of maleic anhydride (MAH) and styrene (St) dual monomers to polyolefin elastomer (POE) and poly [styrene-b-(ethylene-co-butylene)-b-styrene] (SEBS), respectively. Subsequently, these compatibilizers are utilized to compatibilize the PA6/PP/ABS/SEBS quaternary blends through melt-blending. When POE-g-(MAH-co-St) and SEBS-g-(MAH-co-St) are added, respectively, both can promote the distribution of the dispersed phases, significantly reducing the dispersed phase size. When adding 10 wt% POE-g-(MAH-co-St) and 10 wt% SEBS-g-(MAH-co-St) together, compared to the non-compatibilized blend, the fracture strength, fracture elongation, and impact strength surprisingly increased by 106%, 593%, and 823%, respectively. It can be attributed to the hierarchical interfacial interactions which facilitate gradual energy dissipation from weak to strong interfaces, resulting in the improvement of mechanical properties. The synergistic effect of the enhanced phase interfacial interactions and toughening effect of elastomer compatibilizer achieved simultaneous growth in strength and toughness.

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通过多相相容剂组合相容的超强韧性 PA6/PP/ABS/SEBS 混合物。

开发多组分共混物来制备高性能聚合物材料仍然具有挑战性，这也是废塑料机械回收利用的一项关键技术。然而，多相相容剂是制备高性能多组分共混物的先决条件。本研究通过将马来酸酐（MAH）和苯乙烯（St）双单体分别熔融接枝到聚烯烃弹性体（POE）和聚[苯乙烯-b-（乙烯-共丁烯）-b-苯乙烯]（SEBS）中，制备了 POE-g-（MAH-co-St）和 SEBS-g-（MAH-co-St）相容剂。随后，利用这些相容剂通过熔融混合的方式对 PA6/PP/ABS/SEBS 四元共混物进行相容。当分别添加 POE-g-（MAH-co-St）和 SEBS-g-（MAH-co-St）时，二者都能促进分散相的分布，显著减小分散相的尺寸。当同时添加 10 wt% POE-g-(MAH-co-St) 和 10 wt% SEBS-g-(MAH-co-St) 时，与未共混的混合物相比，断裂强度、断裂伸长率和冲击强度竟然分别提高了 106%、593% 和 823%。这可能是由于分层界面相互作用促进了能量从弱界面向强界面的逐步消散，从而改善了机械性能。相界面相互作用的增强和弹性体相容剂的增韧作用的协同效应实现了强度和韧性的同步增长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

5.80

自引率

14.70%

发文量

7753

审稿时长

1.2 months

期刊介绍： Materials (ISSN 1996-1944) is an open access journal of related scientific research and technology development. It publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Materials provides a forum for publishing papers which advance the in-depth understanding of the relationship between the structure, the properties or the functions of all kinds of materials. Chemical syntheses, chemical structures and mechanical, chemical, electronic, magnetic and optical properties and various applications will be considered.