Strengthened adipic acid cross-linked epoxidized natural rubber by cellulose nanocrystals
文献类型： 外文期刊
作者： Yang, Xueli 1 ; Yang, Li 1 ; Teng, Xiaodan 2 ; Wang, Qifang 4 ; Wang, Yueqiong 4 ; Xu, Chuanhui 1 ;
作者机构： 1.Guangxi Univ, Guangxi Coll & Univ Key Lab Appl Chem Technol & Re, Sch Chem & Chem Engn, 100 Daxuedong Rd, Nanning 530004, Peoples R China
2.Guangxi Univ, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning 530004, Peoples R China
3.Guangxi Univ, Guangxi Key Lab Disaster Prevent & Engn Safety, Nanning 530004, Peoples R China
4.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Key Lab Trop Crop Prod Proc, Minist Agr & Rural Affairs, Zhanjiang 524001, Guangdong, Peoples R China
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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