期刊
APPLIED SCIENCES-BASEL
卷 12, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/app12104854
关键词
scratch-resistant; hydrophobic; GPTES; transparent; sol-gel
类别
资金
- Guangzhou Municipal Science and Technology Bureau [201804020031]
- Guangdong Basic and Applied Basic Research Foundation [2020A1515010057, 2021A1515010626]
An ultra-scratch-resistant, hydrophobic and transparent coating was fabricated using the sol-gel method. The coating has a double-cross-linked network structure, which improves its abrasion resistance. It also exhibits excellent stability and transparency, making it suitable for various practical applications.
In this paper, an ultra-scratch-resistant, hydrophobic and transparent coating was fabricated by the sol-gel method using (3-Glycidyloxypropyl) triethoxysilane (GPTES) and curing agents. When the silanol was condensated, the ring-opening reaction of the epoxy groups also took place, which formed a double-cross-linked network (Si-O-Si and R3N). This network structure restricted the molecule chains from being twisted or dislocated, resulting in a great improvement of the abrasion resistance of the coating. A pencil hardness grade up to 8H was obtained. The coating also showed excellent stability after being soaked in pH = 2 and pH = 12 solutions, seawater and acetone, respectively. In addition, a water contact angle of 121 degrees was obtained by post-treatment with hexamethyldisilazane (HMDS). The average transmittance of the coating reached to 90% in the wavelength range of 400 similar to 800 nm, nearly identical to the glass substrate. With multiple desirable properties and a simple fabrication process, this low-cost coating shows great potential in many practical applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据