IBTES-TiO2@SiO2复合溶胶对砂岩石质文物疏水性能的影响

硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (1): 332-341.

所属专题：新型功能材料

IBTES-TiO₂@SiO₂复合溶胶对砂岩石质文物疏水性能的影响

王岗¹, 魏小红¹, 朱建锋¹, 柴玉梅¹, 张彪¹, 罗宏杰^1,2, 王芬¹

1.陕西科技大学材料科学与工程学院,陕西省无机材料绿色制备与功能化重点实验室,西安 710021;
2.上海大学文化遗产保护基础科学研究院,上海 200444

收稿日期:2021-08-11 修订日期:2021-10-25 出版日期:2022-01-15 发布日期:2022-02-10
通信作者: 朱建锋,博士,教授。E-mail:zhujf@sust.edu.cn
作者简介:王岗(1997—),男,硕士研究生。主要从事文化遗产保护的研究。E-mail:953084295@qq.com
基金资助:
国家重点研发计划(2019YFC1520100);陕西省无机材料绿色制备与功能化重点实验室开放基金(202004)

Effect of IBTES-TiO₂@SiO₂ Composite Sol on Hydrophobic Properties of Sandstone Cultural Relics

WANG Gang¹, WEI Xiaohong¹, ZHU Jianfeng¹, CHAI Yumei¹, ZHANG Biao¹, LUO Hongjie^1,2, WANG Fen¹

1. Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China;
2. Research Institute of Cultural Relics, Shanghai University, Shanghai 200444, China

Received:2021-08-11 Revised:2021-10-25 Online:2022-01-15 Published:2022-02-10

摘要/Abstract

摘要： 以异丁基三乙氧基硅烷(IBTES)和正硅酸乙酯、钛酸丁酯为主要原料,利用溶胶-凝胶(sol-gel)法制备了IBTES-TiO₂@SiO₂复合溶胶。并通过XRD、FT-IR、SEM、TEM等手段研究了IBTES-TiO₂@SiO₂的物相组成、微观形貌以及砂岩防护后涂层表面的超疏水、自清洁、耐候性能。结果表明:IBTES-TiO₂@SiO₂复合涂层的水接触角最高可达162°,且具有优异的自清洁性;喷涂处理后,砂岩的水蒸气透过性能依然保持良好,水蒸气透过量仅降低3.4%。IBTES-TiO₂@SiO₂复合涂层具有优异的耐候性能,TiO₂@SiO₂颗粒的加入可有效提高砂岩的耐酸、耐碱和耐紫外线老化性能。在300 h人工加速老化实验中,砂岩表面涂层依然具有超疏水防护性能。IBTES-TiO₂@SiO₂复合涂层对砂岩石质文物具有良好的防护效果,适用于砂岩石质文物保护。

关键词: TiO₂@SiO₂, 异丁基三乙氧基硅烷, 超疏水涂层, 耐候性能, 砂岩石质文物, 防护性能

Abstract: A protective sol (IBIES-TiO₂@SiO₂ composite sol) was synthesized by sol-gel method with isobutyltriethoxysilane (IBTES), ethyl orthosilicate and butyltitanate as the main components. In this study, a super-hydrophobic self-cleaning coating was prepared in one step by using spray method. The phase composition and micro morphology of IBTES-TiO₂@SiO₂ and the super-hydrophobicity, self-cleaning and weather resistance of the coating surface after sandstone protection were studied through XRD, FT-IR, SEM, TEM and other measurements. The results show that IBTES-TiO₂@SiO₂ composite coating has a water contact angle of up to 162°, and has excellent self-cleaning property. After spraying treatment, the water vapor transmission rate of sandstone only reduces by 3.4%. Obviously, the water vapor transmission performance is excellent. When the addition amount of TiO₂@SiO₂ is 0.7% (mass fraction), it meets the super-hydrophobic performance of sandstone cultural relics while taking into the water vapor permeability. IBTES-TiO₂@SiO₂ composite coating also has excellent weather resistance. The addition of TiO₂@SiO₂ particles effectively improves the acid resistance, alkali resistance and ultraviolet aging resistance of sandstone. In 300 h artificial accelerated aging experiment, the surface coating of sandstone still has super-hydrophobic protection properties. IBTES-TiO₂@SiO₂ composite coating has a good protective effect on sandstone cultural relics. Hence, IBTES-TiO₂@SiO₂ composite coating is highly promising for the protection of sandstone cultural relics.

Key words: TiO₂@SiO₂, isobutyltriethoxysilane, super-hydrophobic coating, weather resistance, sandstone cultural relic, protective performance

中图分类号:

TQ630.6

王岗, 魏小红, 朱建锋, 柴玉梅, 张彪, 罗宏杰, 王芬. IBTES-TiO₂@SiO₂复合溶胶对砂岩石质文物疏水性能的影响[J]. 硅酸盐通报, 2022, 41(1): 332-341.

WANG Gang, WEI Xiaohong, ZHU Jianfeng, CHAI Yumei, ZHANG Biao, LUO Hongjie, WANG Fen. Effect of IBTES-TiO₂@SiO₂ Composite Sol on Hydrophobic Properties of Sandstone Cultural Relics[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(1): 332-341.

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IBTES-TiO₂@SiO₂复合溶胶对砂岩石质文物疏水性能的影响

Effect of IBTES-TiO₂@SiO₂ Composite Sol on Hydrophobic Properties of Sandstone Cultural Relics

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