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基于TEOS的混合材料作为纸质遗迹的强化剂

Mengruo Wu¹, Le Mu², Zhiyue Zhang¹

¹Key Laboratory of Archaeomaterials and Conservation, Ministry of Education, Institute for Cultural Heritage and History of Science & Technology, University of Science and Technology Beijing, Beijing 100083, China.

Molecules (Basel, Switzerland)

|April 27, 2024

概括

添加多德三氧化 (DTMS) 添加到四氧化 (TEOS) 防止在凝中发生裂纹,以保护艺术品. 这种DTMS/TEOS混合材料增强了纸质遗迹强度和疏水性,而不会改变外观.

科学领域:

材料科学材料科学材料科学
保护科学保护科学
化学化学化学

背景情况:

氧 (Tetraethoxysilane,简称TEOS) 是一种常见的,具有成本效益的基剂,用于艺术遗迹的保存.
使用TEOS的sol-gel工艺可能会导致凝收缩和裂纹,可能会损坏文物.
现有的方法缺乏无裂纹,稳定的强化解决方案,用于像纸张这样的微妙材料.

研究的目的:

开发一种无裂纹,稳定的强化材料用于艺术品保护,使用混合型sol-gel方法.
为了研究 dodecyltrimethoxysilane (DTMS) 添加对基于 TEOS 的特性的影响.
评估DTMS/TEOS混合材料在增强老竹纸上的性能.

主要方法:

将二甲基三甲基西兰 (DTMS) 纳入四甲基西兰 (TEOS) 用于混合型sol-gel配方.
由此产生的凝的微观结构,透明度和热稳定性 (玻璃过渡温度) 的表征.
通过sol-gel工艺将DTMS/TEOS混合材料应用于人工老化的竹纸上,然后进行属性评估.

主要成果:

该DTMS/TEOS混合材料形成了一个透明的,无裂纹的凝,具有密集的微观结构和高热稳定性 (Tg高达109.64°C).
经过处理的竹纸表现出增强的疏水性质,没有改变外观,颜色或空气透性.
观察到机械性能显著改善,拉伸强度增加了高达36.63% (纵向) 和44.25% (横向).

结论:

添加DTMS有效地减轻了TEOS基凝中的收缩裂纹,以保护其.
DTMS/TEOS混合材料为加强和保护纸质遗迹提供了一个有前途的无裂纹解决方案.
增强的疏水性和机械强度证明了该材料在长期保存文物方面的潜力.

关键词:

有机酸盐是有机酸盐.这是纸质遗迹.保护保护保存保存增强的强化加强的加强

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