具有机械强度,耐水性和可生物降解的全生物基透明木材薄膜,具有UV阻性能
Tong Zhou1, Jing Zhou1, Qian Feng2
1College of Materials Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
International journal of biological macromolecules
|November 17, 2023
概括
研究人员从木材和凝中开发出一种高性能,完全基于生物的透明木材薄膜. 这种可持续的塑料替代品提供了出色的强度,光学清晰度和生物降解性,减少了对环境的影响.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 生物技术是生物技术.
背景情况:
- 基于石油的塑料带来了环境和健康问题.
- 开发具有卓越机械和光学性能的可持续结构材料对于替代塑料至关重要.
研究的目的:
- 创建一个高性能,完全基于生物的结构材料,用木材和凝作为塑料的环保替代品.
- 通过特定的化学修饰和物理交联来研究材料性能的增强.
主要方法:
- 纤维素木骨架 (WS) 被氧化形成DAWS.
- 凝被移植到DAWS上,得到的材料被与酸 (TA) 交叉连接.
- 在干燥过程中使用轻度压力制造了一种密集的TA/凝/透明木材薄膜 (TWF).
主要成果:
- 开发的TA/凝/TWF表现出高强度 (∼154.59 MPa) 和优异的光传导率 (86.2%).
- 该材料表现出低雾度 (16.7%),高水稳定性 (湿强度:≤130.13MPa) 和有效的紫外线阻断.
- 全生物基的TWF很容易生物降解,与石油基塑料相比,它可以减少环境足迹.
结论:
- 开发的TA/凝/TWF表现出优越的性能,超过了许多基于石油的塑料.
- 这些发现凸显了全生物木复合材料作为传统塑料的可持续替代品的潜力.
- 该材料在防伪,紫外线保护和柔性电子产品的应用方面表现有前途.
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