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首页> 外文期刊>RSC Advances >From soft to strong elastomers: the role of additional crosslinkings in copolymer-grafted multiwalled carbon nanotube composite thermoplastic elastomers
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From soft to strong elastomers: the role of additional crosslinkings in copolymer-grafted multiwalled carbon nanotube composite thermoplastic elastomers

机译：从软弹性体到强弹性体：在共聚物接枝的多壁碳纳米管复合热塑性弹性体中附加交联的作用

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摘要

Fabricating elastomeric materials is one of the most important branches in current nanotechnology and composite science. The macroscopic properties of the elastomers can be modified by adding fillers through changing the types and degrees of crosslinkings. In this study, copolymer-grafted multiwalled carbon nanotube composite thermoplastic elastomers (CTPEs) have been designed, in which the grafted poly(n-butyl acrylate-co-methyl methacrylate) (P(BA-co-MMA)) random copolymers behave as the soft elastomer, and the homogeneously and discretely dispersed multiwalled carbon nanotubes (MWCNTs) of low amounts provide additional physical crosslinkings, which significantly enhance the mechanical properties of the composite elastomers, including high strain-hardening modulus and much improved elastic recovery. This design concept opens a window to produce high-performance strong composite thermoplastic elastomeric materials from soft ones through the incorporation of rigid fillers of low amounts by a grafting strategy.
机译：制造弹性体材料是当前纳米技术和复合科学中最重要的分支之一。弹性体的宏观性质可以通过改变交联的类型和程度通过添加填料来改变。在这项研究中，已设计了共聚物接枝的多壁碳纳米管复合热塑性弹性体（CTPEs），其中接枝的聚丙烯酸正丁酯-甲基丙烯酸甲酯共​​聚物（P（BA-co-MMA））的行为与柔软的弹性体以及少量的均匀分散的多壁碳纳米管（MWCNT）提供了额外的物理交联，从而显着增强了复合弹性体的机械性能，包括高应变硬化模量和显着改善的弹性回复率。通过采用接枝策略，通过掺入少量的硬质填料，这种设计理念为从软质材料生产高性能强复合热塑性弹性体材料打开了一个窗口。

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