Flexible,thermal processable,self-healing,and fully bio-based starch plastics by constructing dynamic imine network

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外文摘要：The serious environmental threat caused by petroleum-based plastics has spurred more researches in developing substitutes from renewable sources.Starch is desirable for fabricating bioplastic due to its abundance and renewable nature.However,limitations such as brittleness,hydrophilicity,and thermal properties restrict its widespread application.To overcome these issues,covalent adaptable network was constructed to fabricate a fully bio-based starch plastic with multiple advantages via Schiff base reactions.This strategy endowed starch plastic with excellent thermal processability,as evidenced by a low glass transition temperature(Tg¼20.15℃).Through introducing Priamine with long carbon chains,the starch plastic demonstrated superior flexibility(elongation at break ¼ 45.2％)and waterproof capability(water contact angle¼109.2°).Besides,it possessed a good thermal stability and self-adaptability,as well as solvent resistance and chemical degradability.This work provides a promising method to fabricate fully bio-based plastics as alternative to petroleum-based plastics.

外文关键词：

BioplasticCovalent adaptable networksSchiff base chemistryThermal processabilitySelf-healing

作者：

Xiaoqian Zhang、Haishan Zhang、Guowen Zhou、Zhiping Su、Xiaohui Wang

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作者单位：

State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou,510640,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaState Key Laboratory of Pulp and Paper EngineeringState Key Laboratory of Pulp and Paper EngineeringState Key Laboratory of Pulp and Paper EngineeringGuangdong Province Basic and Application Basic Research FundFundamental Research Funds for the Central Universities

项目编号：

U23A6005321717212023052023ZD012023C022023B15150400132023ZYGXZR045

出版年：

2024

DOI：

10.1016/j.gee.2023.08.002

绿色能源与环境(英文)

CSTPCD

ISSN：

年,卷(期)：2024.9(10)