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"用丝修复"增强了老化的丝,具有机械和抗菌性能

Dangge Gao¹, Xiaojuan Yang¹, Bin Lyu¹

¹College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China.

Journal of colloid and interface science

|November 24, 2024

概括

研究人员使用丝纤维素 (SF) 和碳甲基 (CMCS) 与转谷氨酶 (TGase) 加强了老化的丝. 这种绿色方法显著改善了丝.

科学领域:

材料科学材料科学材料科学
生物化学生化学
织品保护保护织品

背景情况:

历史丝需要加强和保存,用于研究,遗产和展示.
老化会降解丝,损害其机械完整性和美学价值.
开发有效且无害的保护方法对于保护文化遗产至关重要.

研究的目的:

开发一种绿色和高效的方法,使用丝纤维素 (SF) 和碳甲基 (CMCS) 来加强和保存老化的丝.
评估转谷氨酸酶 (TGase) 催化交联对老年丝机械和抗菌性能的影响.
为了比较一阶段与两阶段增强工艺对老丝性能和外观的有效性.

主要方法:

使用丝纤维素 (SF) 和碳素甲基 (CMCS) 与转谷氨酶 (TGase) 作为交联剂来加强老化的丝.
采用了两种强化方法 (一阶段和两阶段).
机械性质 (断裂应力,断裂时延长) 和抗菌活性对抗大肠杆菌 (大肠杆菌) 和金黄色杆菌 (金黄色杆菌) 进行了评估.
进行了加速衰老测试,以评估抗衰老能力.

主要成果:

转胺酶 (TGase) 催化交联形成了共价和非共价键网络,显著增强了老的机械性能.
与经过老化的丝相比,强化丝的破裂应力增加了257.9%,破裂时的延长增加了293.7%.
加强的丝表现出优良的抗菌性能,抗菌率超过90%对大肠杆菌和金黄色杆菌.
加强的丝在加速老化条件下显著降低了老化速度.
在所有性能评估中,一步强化方法在不影响丝外观的情况下优于两步强化方法.

结论:

使用SF,CMCS和TGase开发的单步增强工艺是一种绿色和高效的方法,可以提高老丝的机械强度和抗菌性能.
这种技术在抗衰老方面提供了显著的改进,这对于长期保存基于丝的文化遗产至关重要.
这项研究为丝文化遗迹保护材料提供了有价值的应用,确保了它们的持续研究,遗产和展示.

关键词:

年龄的丝丝.碳氧甲基基托桑是一种碳氧甲基基托桑.丝纤维素是一种丝纤维素.转氨酸酶是什么?转氨酸酶是什么

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