Recyclable, repairable and malleable bio-based epoxy vitrimers: overview and future prospects

被引:32
作者
Zhang, Yuehong [1 ,2 ]
Ma, Fei [1 ,2 ]
Shi, Lei [3 ]
Lyu, Bin [1 ,2 ]
Ma, Jianzhong [1 ,2 ]
机构
[1] Shaanxi Univ Sci & Technol, Coll Bioresources Chem & Mat Engn, Xian 710021, Peoples R China
[2] Xian Key Lab Green Chem & Funct Mat, Xian 710021, Peoples R China
[3] Zhejiang Hexin Sci & Technol Co Ltd, Jiaxing 314003, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
HIGH-PERFORMANCE; POTENTIAL USE; SHAPE-MEMORY; NETWORKS; POLYMER; RESIN;
D O I
10.1016/j.cogsc.2022.100726
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The extensively used petroleum-based epoxy thermosets suffer from difficulty in recycling (reprocessing, self-healing, or welding) and biodegradation due to their permanent cross-linking network, which not only causes massive consumption of petroleum resources and shortened lifespan of epoxy ther-mosets, but also leads to serious environmental burden after discarding. Bio-based epoxy vitrimers with reversible dynamic covalent networks are competitive alternatives, which offer the advantages of robustness like thermosets and closed-loop recycling similar to thermoplastic, and thus agree well with the idea of carbon neutrality and sustainable development. Here, we reviewed the progress in the design and properties of bio-based epoxy vitrimers with different dynamic bonds and diverse biomass feedstock in the past two years, and also highlighted the major challenges and future prospects.
引用
收藏
页数:11
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