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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