材料科学与工程学报2025，Vol.43Issue(1)：1-8,8.DOI:10.14136/j.cnki.issn1673-2812.2025.01.001
添加CaCl2对细菌纤维素/热塑性淀粉复合膜性能的影响
Effect of CaCl2 Addition on Properties of Bacterial Cellulose/Thermoplastic Starch Composite Film
摘要
Abstract
Bacterial cellulose(BC)/thermoplastic starch(TPS)composite films have great application potential,but their elongation at break needs to be improved.In this study,the effects of CaCl2 addition on the properties of BC/TPS composite films were investigated by adding different concentrations(0%-10%)of CaCl2 to prepare various BC/TPS composite films.The mechanical properties,water content,intermolecular interaction,crystallinity,thermal stability,water vapor transmittance and oxygen transmittance of BC/TPS films with CaCl2 addition were studied.The results showed that 0.5%CaCl2 could increase the elongation at break by one fold while maintaining the tensile strength and Young's modulus of the composite film.CaCl2 could have coordination effect with hydroxyl group in the system,which might replace partial hydrogen bond interaction,so as to improve the elongation at break of BC/TPS composite films,and affect the crystallinity,thermal stability and barrier properties.Moreover,the addition of CaCl2 also enhanced the freshness preservation of the composite film on strawberry.关键词
CaCl2/细菌纤维素/热塑性淀粉/复合膜/机械性能Key words
CaCl2/Bacterial cellulose/Thermoplastic starch/Composite film/Mechanical properties分类
化学工程引用本文复制引用
梁锡宏,钟建江..添加CaCl2对细菌纤维素/热塑性淀粉复合膜性能的影响[J].材料科学与工程学报,2025,43(1):1-8,8.基金项目
国家自然科学基金项目(22378264) （22378264）
泰兴市东圣生物科技有限公司(江苏泰兴)项目(2019310031000744) （江苏泰兴）
