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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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