Design of epoxidized natural rubber/poly(lipoic acid) elastomer with fast and efficient self-healing under a mild temperature
文献类型： 外文期刊
作者： Kong, Lingli 1 ; Yang, Yunpeng 1 ; Wu, Mingliang 1 ; Teng, Xiaodan 1 ; Wang, Yueqiong 2 ; Xu, Chuanhui 1 ;
作者机构： 1.Guangxi Univ, Sch Chem & Chem Engn, Guangxi Key Lab Petrochem Resource Proc & Proc Int, Nanning 530004, Peoples R China
2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Key Lab Trop Crop Prod Proc, Minist Agr & Rural Affairs, Haikou 524001, Guangdong, Peoples R China
3.Guangxi Univ, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning 530004, Peoples R China
4.Guangxi Univ, Guangxi Key Lab Disaster Prevent & Engn Safety, Nanning 530004, Peoples R China
关键词： Self -healing; Recycling; Mechanical testing
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.025； 五年影响因子：7.626 ）
ISSN： 0141-8130
年卷期： 2022 年 223 卷
页码：
收录情况： SCI
摘要： Most of the dynamic covalent bonds (DCBs) for self-healing rubber must be activated at relatively high tem-peratures due to the requirement of high energy during the exchange of dynamic bonds, which may lead to unexpected degradation or excessive crosslinking of rubber. Herein, we designed and fabricated a highly stretchable, self-healable and reprocessable rubber by introducing dynamic disulfide bonds into the crosslink network of epoxidized natural rubber (ENR). Lipoic acid (LA) was firstly uniformly dispersed into ENR via a latex film formation technique, and then underwent a dynamic covalent ring-opening self-polymerization during hot pressing process, during which the carboxyl group of poly(LA) attacked the epoxy group of ENR to form beta-hy-droxyl ester bond crosslinks. As a result, a revisable covalently crosslinked network without rigid steric hin-drance groups was constructed, which exhibited a super self-healing efficiency of 99 % after self-healing at 80 degrees C for only 3 h. The elongation at break of the elastomer could reach 1115 % and the recovery rate of reprocessing was as high as 91 %.
- 相关文献
作者其他论文 更多>>
-
A ENR-based conductive film integrating electricity-triggered self-healing, damage detection and high sensitivity for flexible sensors
作者：Kong, Lingli;Yang, Yunpeng;Lin, Zihao;Huang, Bai;Xu, Chuanhui;Liao, Lusheng;Wang, Yueqiong;Xu, Chuanhui
关键词：Electricity-triggered self-healing; Damage detection; Flexible sensors; Disulfide bonds
-
Performance of Moringa Oil as an Effective Bioplasticizer on Static and Dynamic Mechanical Properties of Natural Rubber Vulcanizates
作者：Jarnthong, Methakarn;Li, Yongzhen;Yu, Heping;Wang, Rui;Wang, Yueqiong;Liu, Hongchao;Liao, Lusheng;Peng, Zheng;Lopattananon, Natinee;Peng, Zheng
关键词：Moringa oil; Natural rubber; Bioplasticizer; Static properties; Dynamic mechanical properties; Vulcanizates
-
Strain-induced crystallization behavior and tensile properties of natural rubber with different vulcanization bond types
作者：Wang, Yueqiong;Liu, Hongchao;Peng, Zheng;Wang, Rui;Yu, Heping;Wang, Qifang;Liao, Lusheng;Wang, Yueqiong;Liao, Shuangquan;Zheng, Tingting;Wang, Yueqiong;Liu, Hongchao;Peng, Zheng;Wang, Rui;Yu, Heping;Liao, Lusheng
关键词：Vulcanization bond types; Strain-induced crystallization; Tensile properties
-
Strengthened adipic acid cross-linked epoxidized natural rubber by cellulose nanocrystals
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
关键词：Epoxidized natural rubber; Cellulose nanocrystals; Mechanical reinforcement; Biobased
-
Morphology and Microwave-Absorbing Performances of Rubber Blends with Multi-Walled Carbon Nanotubes and Molybdenum Disulfide
作者：Huang, Le;Chen, Jingru;Liu, Bingjun;Deng, Jing;Zhao, Yanfang;Zhao, Pengfei;Liao, Lusheng;Tao, Jinlong;Wang, Yueqiong;Wang, Bingbing;Liao, Lusheng
关键词：molybdenum disulfide; multi-walled carbon nanotubes; natural rubber; nitrile butadiene rubber; electromagnetic loss
-
Research of strain induced crystallization and tensile properties of vulcanized natural rubber based on crosslink densities
作者：Wang, Yueqiong;Liao, Lusheng;Wang, Rui;Yu, Heping;Lian, Yujia;Liu, Hongchao;Peng, Zheng;Wang, Yueqiong;Lian, Yujia;Luo, Mingchao;Liao, Shuangquan;Zheng, Tingting;Wang, Yueqiong;Liao, Lusheng;Wang, Rui;Yu, Heping;Liu, Hongchao;Peng, Zheng
关键词：Crosslink density; Vulcanized natural rubber; Crystallization
-
Fabricating robust natural rubber composites with photothermal conversion and near-infrared light-actuated remote-controlled accurate self-healing
作者：Wu, Mingliang;Luo, Tianwen;Lu, Junjie;Lin, Baofeng;Xu, Chuanhui;Wang, Yueqiong;Xu, Chuanhui
关键词：Polymer-matrix composites (PMCs); Carbon nanotubes; Mechanical properties; Self-healing
