浮法玻璃的风化  

Weathering of Float Glass

作　　者：王承遇[1] 齐济[2] 黄明[1] 庞世红[1,3] 

机构地区：[1]大连工业大学玻璃及无机新材料研究所,大连116034 [2]大连民族学院化学工程系,大连116600 [3]中国建材科学研究院总院,北京100024

出　　处：《武汉理工大学学报》2009年第22期98-102,共5页Journal of Wuhan University of Technology

摘　　要：采用原子吸收分光光度计、红外反射、扫描电镜、能谱、波谱、激光椭圆膜厚仪研究了浮法玻璃在不同温度、湿度和时间条件下的风化,得出了风化析碱量与温度、湿度、时间的关系式,其中湿度是影响玻璃风化的关键,湿度低于26.7%,浮法玻璃不会风化。比较镀TiO2膜自洁玻璃与未镀膜玻璃经不同时间风化后的扫描电镜照片,镀膜较未镀膜玻璃风化程度轻,这是由于膜层影响Na+与H+、H3O+扩散,使风化过程中离子交换反应减慢。Float glass weathering was investigated under various conditions of temperature, humidity and time by means of atomic absorption spectrometry, infrared reflectance analyzer, scanning electron microscope （SEM）, X ray photoelectron spectroscopy, wavelength dispersive X-ray spectrometer and elliptical polarized thickness meter. The relation.ships between extractive alkali amount and temperature, humidity, time are given, where humidity is the critical factor on glass weathering, when humidity is lower than 26.7 % float glass fail to weathering. It is shown that coating TiO2 film of self cleaning glass weathers lighter than un-filming ones from SEM photos, the reason is the film layer can prevent Na＋ , H＋ and H3O＋ from diffusion and the ion exchange rate slows down.

关 键 词：浮法玻璃 风化 TIO2膜 自洁净玻璃 环境条件 

分 类 号：TQ171.1[化学工程—玻璃工业]