三种有机氟硅类防护材料对石材的抗酸保护性能  

Acid Rain Resistance Property of Three Fluoro-organosilane Materials for Carbonate Stone

作　　者：徐飞高[1,3] 李丹[2] 赵末名[3] 高士祥[3] 

机构地区：[1]南昌大学理学院,南昌330047 [2]南昌大学环境学院,南昌330047 [3]南京大学环境学院,污染控制与资源化研究国家重点实验室,南京210093

出　　处：《腐蚀与防护》2010年第1期14-17,共4页Corrosion & Protection

基　　金：江苏省社会发展项目资助课题(BS2006050)

摘　　要：酸雨是造成石材化学腐蚀最重要因素之一。采用连续浸泡和周期喷淋法考察石灰岩经过三种有机氟硅(Pelicoat、Coesol和Mellerud)防护材料处理后的抗酸防护情况。试验发现三种有机氟硅类防护材料在模拟酸雨浸泡过程中没有明显的抗酸保护性能;在相当于南京10年降雨量的周期喷淋模拟酸雨腐蚀下,未用保护材料处理的石材钙损失为21.594 5 g/m^2,而用三种防护材料处理的石材钙损失分别为Pelicoat 5.2481 g/m^2,Coesol 6.3807 g/m^2,MelleRud 6.2405 g/m^2,三种有机氟硅类防护材料对石材有长期的抗酸保护效果。One of the most important factors of carbonate stone decay is the chemical attack caused by atmospheric pollutants such as acid rain. Simulated acid rain was used to evaluate the protection properties sorts of three commercial fluoro-organosilane （Pelicoat, Coesol and Mellerud） for carbonate stone by continuous immersion method and periodic spraying method. The results showed that the carbonate stone treated with three sorts commercial fluoroorganosilane could not obviously resist acid rain in continuous immersion test. The Ca loss was 5. 2481 g/m2 , 6. 3807 g/m2, 6. 2405 g/m2 for Pelicoat, Coesol and MelleRud respectively during simulated acid rain periodic spraying testing which corresponded to 10 year rainfall in Naniing city, while the Ca loss was 21. 5945 g/m2 for untreated carbonate stone. There are long-term protective effects against acid rain for carbonate stones with Pelicoat, Coesol and MelleRud treated.

关 键 词：周期喷淋 连续浸泡 模拟酸雨 石灰岩 有机氟硅防护材料 腐蚀 

分 类 号：TU503[建筑科学—建筑技术科学]