Design of heat-sealing starch-based bioplastics reinforced with different modified starches and TEMPO-CNF

作     者：Xie, Di Li, Jinhong Zhang, Congcong Yang, Siwen Yang, An Song, Shanshan Song, Yongming 

作者机构：Northeast Forestry Univ Key Lab Biobased Mat Sci & Technol Minist Educ Harbin 150040 Heilongjiang Peoples R China 

出 版 物：《INDUSTRIAL CROPS AND PRODUCTS》 (Ind. Crops Prod.)

年 卷 期：2025年第232卷

核心收录：

学科分类：0828[工学-农业工程] 09[农学] 0901[农学-作物学] 

基　　金：Natural Science Foundation for Distinguished Young Scholars of Heilongjiang Province  China [JQ2022C001] 

主　　题：Bioplastic Mechanical properties Water resistance Heat-sealing property 

摘      要：An increasing interest in utilizing biomass resources to develop bioplastics, aiming to mitigate the environmental and energy issues resulting from the use of petroleum-based plastics. However, bioplastics that suffering from poor interface bonding and hydrophilicity of the feedstock usually exhibit inadequate mechanical properties, water stability and functionality, which hinder their practical applications. Herein, a simple and effective strategy was proposed to develop high-performance starch-based bioplastics with thermoplastic by 2,2,6,6-tetramethylpiperidine 1-oxy-oxidized cellulose nanofibers and different modified starch fillers coupled with chemical cross-linking reinforcement. Due to the full utilization of the advantages of each component, outstanding interface bonding and rich chemical cross-linking, all the obtained modified starch-based bioplastics demonstrated excellent mechanical properties (up to 20.52 MPa) and superior water stability. Besides, the starch-based bioplastics could be reused after dissolution-regeneration, and completely biodegradable after disposal. At the same time, the starch-based bioplastics exhibited remarkable heat-sealing properties, which provided more convenient possibility of producing packaging materials for bioplastics used in different fields.