酸雨是对石材造成化学腐蚀的最重要因素之一.考察了pH值为4.0的模拟酸雨对两种石材有机氟硅防护材料(Pelicoat和Mellerud)的影响.实验结果发现随着腐蚀的进行,两种防护材料的疏水性降低,防护效果下降.SEM电镜发现用防护材料处理过的样品经过模拟酸雨8 h腐蚀后,试样表面出现大量网状孔洞.
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