PPR/EPDM/POE-g-MA/OMMT nanocomposites with superior low-temperature toughness based on embedded OMMT within compound rubber dispersion phase

文献类型： 外文期刊

第一作者： Qiu, Biwei

作者： Qiu, Biwei;Li, Zhi;Li, Zhi;Chen, Feng;Shangguan, Yonggang;Zheng, Qiang;Shi, Jiangao;Zhang, Mingyu;Zheng, Qiang;Shangguan, Yonggang;Zheng, Qiang

作者机构：

关键词： Low-temperature toughening; Synergistic effect; Compound rubber

期刊名称：POLYMER （ 影响因子：4.1； 五年影响因子：3.9 ）

ISSN： 0032-3861

年卷期： 2024 年 309 卷

页码：

收录情况： SCI

摘要： A new approach to produce polypropylene random copolymer/ethylene propylene diene monomer/polyolefin elastomers modified with maleic anhydride/organic modified nanomontmorillonite (PPR/EPDM/POE-g-MA/ g-MA/ OMMT) nanocomposites with superior low-temperature toughness was conducted. The brittle-ductile transition temperature (Tbd) T bd ) of PPR/EPDM/POE-g-MA/OMMT g-MA/OMMT nanocomposites reduced from-20 degrees C to-40 degrees C. The incorporation of POE-g g-MA results in the distribution of OMMT changing from the interfacial distribution into dispersed inside rubber phase and a compound rubber dispersed phase in PPR/EPDM/POE-g-MA/OMMT g-MA/OMMT nanocomposites was comprised of EPDM, POE-g g-MA and embedded OMMT. The synergistic effect of POE-g g-MA and OMMT was considered to result from the special compound rubber dispersed phase consisting of EPDM and POE-g g-MA as well embedded OMMT, which led to the reduction in space between rubber domains and the increase in internal friction and ultimately brought about the remarkable enhancement in mechanical properties.

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