盐雾气候下建筑玻璃表面盐分沉积特性的实验研究

【作者】 毛会军； 孟庆林； 汪俊松； 任鹏；

【机构】 华南理工大学建筑学院亚热带建筑科学国家重点实验室；

【摘要】 本文以市场上常见的中空Low-E玻璃为研究对象,通过加速盐雾试验的方法使玻璃表面产生盐分沉积,探究了不同喷雾时间、盐水浓度与沉积特性之间的关系。结果表明,随着喷雾时间变长,玻璃表面的盐斑分布均匀性与密集程度均有所下降,但盐斑尺寸与喷雾时间呈现指数函数增长趋势,而表面单位面积沉积量与喷雾时间呈现对数函数关系;高盐水浓度下玻璃试件表面单位面积沉积量与喷雾时间仍呈现对数增长趋势,但高浓度对应的单位面积沉积量始终大于低浓度工况,其平均增大幅度约为9.3%。更多还原

【Abstract】 In this paper,the salt deposition on the hollow low-Eglass surface was firstly yielded by the method of accelerated salt spray test,and the relationship between spray time,salt concentration and deposition characteristics was explored.The results show that the distribution uniformity and density of salt spots on glass surface decrease as spray time increases,but the size of salt spots grows exponentially with increasing spray time.However,the deposition amount per unit area of glass surface increases logarithmically with a higher spray time.The deposition amount and spray time also show logarithmic growth even at high saline concentration,but the deposition amount at high saline concentration is always higher than that at low saline concentration,with an average increase of 9.3%.更多还原