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可生物降解的双网纤维素复合生物塑料元膜用于塑料替代品

Dong Wang^1,2, Shuo Shi¹, Yanyun Mao²

¹Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077, China.

Angewandte Chemie (International ed. in English)

|October 30, 2023

概括

研究人员从细菌纤维素中开发出一种坚固,阻燃的生物塑料. 这种新型材料为石油塑料提供了可持续的替代品,具有出色的机械性能和生物降解性.

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
生物技术是生物技术.

背景情况:

基于石油的塑料对环境和健康构成风险.
纤维素材料提供了一个可持续的替代品,但缺乏像性和阻燃性等所需的特性.
现有的生物塑料难以满足传统塑料的性能要求.

研究的目的:

开发一种高性能纤维素复合材料生物塑料元膜.
为了克服纤维素材料的脆弱性,易燃性和水敏感性的局限性.
创建一个可行的,环保的替代石油塑料.

主要方法:

细菌纤维素基质的制造.
在矩阵内的循环三酸桥梁有机网络的现场生长.
双网络设计策略,以提高材料性能.

主要成果:

实现了卓越的机械性 (23.5 MJ m−3).
证明了增强的阻燃性,耐溶剂性和耐水性.
呈现出高的最大使用温度 (245°C) 和低的热膨胀系数 (15.19 ppm °C−1).
呈现出良好的透明度 (平均74%) 和高雾度 (>80%),适合柔性ITO薄膜基板.
已证实良好的生物相容性和自然生物降解.

结论:

新的双网络设计策略成功解决了纤维素材料的局限性.
与传统塑料相比,开发的生物塑料复合材料具有优越的性能.
这种材料为各种应用提供了有希望的,可持续的替代品,包括柔性电子.

关键词:

纤维素复合生物塑料元膜.双网络策略双网络策略阻燃性阻燃性阻燃性阻燃性塑料替代品塑料替代品超强性超强性超强性

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