Change in the surface OH group on soda lime silicate glass and silica glass after heat treatment in nitrogen atmosphere
Change in the surface OH group on soda lime silicate glass and silica glass after heat treatment in nitrogen atmosphere
复制标题
钠钙硅酸盐玻璃和石英玻璃氮气氛热处理后表面OH基团的变化
DOI：
10.1016/j.jnoncrysol.2017.03.014
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发表时间：
2017
影响因子：
3.5
通讯作者：
K. Fukutani
中科院分区：
文献类型：
--
作者：
Toshio Suzuki;Tomomi Sekine;Kiyoshi Yamamoto;K. Fukutani
测量水的接触角以估计钠钙硅酸盐和石英玻璃表面的润湿性。在氮气气氛下进行 850°C 热处理后，石英玻璃的接触角增加至 33°，随着时间的推移，接触角逐渐减小，最终达到热处理前的 5° 相似值。这表明表面 OH 含量因热处理而降低，并随着时间的推移恢复到初始值，这通过 D-SIMS 测量得到定性证实。另一方面，钠钙硅酸盐玻璃表面在N 2 气氛下热处理前后的接触角几乎相同。据认为，钠钙硅酸盐玻璃表面的水合通过与碱金属和/或碱土金属阳离子的交换而比石英玻璃进行得更快。
The contact angle of water is measured to estimate the wettability of soda lime silicate and silica glass surfaces. The contact angle of the silica glass is increased to 33° with the heat treatment at 850 °C under an N2atmosphere, which gradually decreases with elapsed time finally reaching the similar value of 5° before the heat-treatment. This indicates that the surface OH content is reduced by the heat treatment and recovers with time to the initial value, which is qualitatively confirmed by D-SIMS measurements. On the other hand, the contact angle for the soda lime silicate glass surface is almost the same before and after the heat treatment under an N2atmosphere. It is considered that hydration of the soda lime silicate glass surface proceeds faster than the silica glass through exchange with alkali and/or alkali-earth cations.