原子层沉积Al2O3/TiO2多层膜在丝上,以提供高效的紫外线屏蔽性能
Tonghe Xing1, Annan He1, Zhiming Du1
1State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Hubei Key Laboratory of Digital Textile Equipment, and College of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, P.R. China.
ACS applied materials & interfaces
|April 18, 2025
概括
这项研究增强了丝纤维的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 织工程 织工程 织工程
- 纳米技术纳米技术
背景情况:
- 丝纤维提供了出色的机械性能和舒适性,但由于紫外线 (UV) 光的稳定性较差.
- 现有的抗紫外线表面修改往往会损害丝的舒适性.
- 在不牺牲舒适性的情况下开发抗UV丝对于先进的织应用至关重要.
研究的目的:
- 开发一种新的方法来提高丝纤维的紫外线稳定性.
- 为了在紫外线保护处理后保持丝固有的舒适性.
- 为高性能功能化丝提供可扩展的技术.
主要方法:
- 使用改性原子层沉积 (ALD) 技术,在丝纤维上制造一层超薄的氧化 (Al2O3) /二氧化 (TiO2) 涂层 (120 nm).
- 涂层丝在高温 (>200°C) 下暴露在强烈的紫外线 (640mW/cm2) 下6小时,以评估耐用性.
- 对改性丝的机械性能,佩戴舒适性,洗衣耐用性,热稳定性,化学稳定性和阻燃性进行评估.
主要成果:
- 经过严重的紫外线和热暴露后,ALD涂层的丝保持了61.1%的原始性,显著优于现有方法.
- 增强的紫外线抵抗性归因于多层紫外线反射的协同效应,Al2O3的基质清除,以及Al2O3/TiO2膜的热屏蔽.
- 改性丝具有优异的多循环洗耐用性,热和化学稳定性,阻燃性,重要的是,穿着舒适度没有显著变化.
结论:
- 通过ALD开发的层超薄Al2O3/TiO2涂层有效地为丝纤维赋予了优越的紫外线稳定性.
- 这种创新的表面修改保留了丝的舒适性,同时提高了其耐用性和功能.
- 该研究提供了一个有希望的原则和技术指导,用于创建高性能,多功能纤维和设备.
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