Strengthened adipic acid cross-linked epoxidized natural rubber by cellulose nanocrystals
文献类型: 外文期刊
第一作者: Yang, Xueli
作者: Yang, Xueli;Yang, Li;Xu, Chuanhui;Yang, Xueli;Yang, Li;Teng, Xiaodan;Xu, Chuanhui;Yang, Xueli;Yang, Li;Teng, Xiaodan;Xu, Chuanhui;Wang, Qifang;Wang, Yueqiong;Xu, Chuanhui
作者机构:
关键词: Epoxidized natural rubber; Cellulose nanocrystals; Mechanical reinforcement; Biobased
期刊名称:CELLULOSE ( 影响因子:5.7; 五年影响因子:5.6 )
ISSN: 0969-0239
年卷期: 2023 年 30 卷 11 期
页码:
收录情况: SCI
摘要: The formation of covalently cross-linked 3D network makes it difficult to recycle conventional vulcanized rubbers. Introducing dynamic covalent bonds such as reversible ester bonds into the rubber network is a feasible method to solve this issue. However, the low mechanical properties of rubber with only reversible ester bonds make it unsuitable for most practical applications. This work reports a strengthened biobased epoxidized natural rubber/adipic acid/cellulose nanocrystal (ENR/AA/CNC) composite in which biobased AA covalently cross-links ENR to form a network with exchangeable ss-hydroxyl ester bonds. This network is able to rearrange its topology at high temperatures, causing the ENR/ AA/CNC composite to exhibit certain reprocessing capabilities. Meanwhile, the CNCs form a mass of hydrogen bonds between their hydroxyl groups and the hydrophilic groups of ENR chains, giving the ENR/AA/CNC composite an enhanced mechanical performance. [GRAPHICS]
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