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基于Bombyx mori丝纤维素的坚固和耐温度材料

Meng Zhang¹, Quan Wan¹, Yajun Shuai¹

¹Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province, Institute of Applied Bioresource Research, College of Animal Sciences, Zhejiang University, Hangzhou, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|January 15, 2026

概括

研究人员使用生物模拟策略开发了一种灵活的丝纤维蛋白膜,用于极端温度. 这种材料在恶劣的极地和外星环境中保持形状和机械完整性.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
聚合物科学聚合物科学

背景情况:

极端温度对用于极地和外星探索的材料构成重大挑战.
现有的材料往往缺乏这些苛刻的环境所需的机械性能和耐热性.

研究的目的:

开发一种新的仿生策略,用于从可再生资源中制造高性能材料.
设计一种灵活的纤维蛋白膜 (FFM),具有特殊的机械性能和在广泛的温度范围 (-196°C至70°C) 中保持形状.

主要方法:

受到Bombyx mori丝编织的启发,采用了一种"水化结晶锁定" (HCL) 策略.
在丝纤维素 (SF) 中精确控制了水友性域和疏水晶体.
材料的表征包括在极端温度下进行抗拉强度,性和形状保留测试.

主要成果:

开发的FFM具有很高的抗拉强度 (∼50.5MPa) 和性 (∼16.4MJ/m3).
在196°C和70°C的大型变形下,FFM表现出>95%的形状保留.
该HCL战略成功地促进了丝I结构,通过捕获的水增强了链的塑化,而丝II则作为屏障.

结论:

该HCL战略提供了一种可持续的方法,用于从可再生丝纤维素中制造高性能生物质聚合物.
FFM作为一个多功能平台,用于极端环境中的应用,包括灵活的光伏和电磁干扰屏蔽.
这种方法提供了一个可持续的框架,用于替代石油基聚合物在需要的应用程序,如外星探索.

关键词:

波姆比克斯 (Bombyx mori mori mori) 是一个有趣的动物.结晶化结晶化的过程.补充水分补充水分补充水分丝纤维素中的丝纤维素.耐热耐热的温度耐受性

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