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开发高性能生物降解薄膜,该薄膜是基于使用卡普罗拉克 (caprolactone) 进行纤维素酸和桑宁的交叉连接

Yunxia Zhou¹, LuLu Zheng², Xinyi Chen²

¹Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Research Institute of Wood Industry, Chinese Academy of Forestry, Haidian, 100091 Beijing, China.

International journal of biological macromolecules

|February 9, 2024

概括

这项研究开发了一种新的纤维素酸-酸-酸 (CA-CL-T) 薄膜,使用二酸 (DPP) 作为催化剂. 环保的CA-CL-T薄膜具有增强的机械性能,抗紫外线和生物降解性.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
绿色化学绿色化学

背景情况:

在纤维素 (CA) 薄膜生产中使用的传统金属催化剂由于其毒性而带来环境风险.
开发可持续的聚合物加工替代品对于减少生态影响至关重要.

研究的目的:

使用无毒的二酸 (DPP) 催化剂合成一种新的纤维素酸-酸-酸 (CA-CL-T) 薄膜.
评估开发的CA-CL-T薄膜的机械性能,抗紫外线,耐湿性和生物降解性.

主要方法:

纤维素酸盐与卡普罗拉克顿和素反应,使用二酸作为催化剂,形成一个交叉链接的CA-CL-T网络.
鉴定包括分子重量测定,抗拉强度和破裂时延长度测量,紫外线暴露测试,抗潮性评估和生物降解研究.

主要成果:

DPP催化剂促进了交叉链接的CA-CL-T结构的形成,其最大分子量为113,260Da.
该CA-CL-T膜在机械强度 (23MPa抗拉强度,18%在断裂时延长) 和抗紫外线的显著改善.
由于caprolactone的加入,观察到增强的耐湿性,并且膜在使用Penicillium sp.5天后显示质量逐渐下降. 处理,表明生物降解性.

结论:

基酸二有效地使纤维素酸盐,烯酸和酸的交叉连接能够产生高性能薄膜.
由此产生的CA-CL-T薄膜具有增强的机械性能,紫外线稳定性,耐湿性和生物降解性的独特组合.
这项研究提出了一种有希望的环保方法,用于开发基于纤维素酸盐的先进材料.

关键词:

纤维素乙酸盐的使用情况电影电影电影电影坦尼尼坦尼尼坦尼尼是一种

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