表面改性玄武岩鳞片及其无溶剂重防腐复合材料涂层  

SURFACE MODIFICATION BASALT AND ITS SOLVENT-FREE HEAVY ANTICORROSIVE COMPOSITE COATINGS

作　　者：杨中甲 乔彩霞 顾轶卓[2] 李敏[2] 张佐光[2] YANG Zhong-jia;QIAO Cai-xia;GU Yi-zhuo;LI Min(School of Chemistry,Beihang University,Beijing 100191,China;School of Materials Science and Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学化学学院,北京100191 [2]北京航空航天大学材料科学与工程学院,北京100191

出　　处：《复合材料科学与工程》2020年第4期28-34,45,共8页Composites Science and Engineering

基　　金：国家自然基金青年科学基金项目(51703006);四川省科技计划(2019YFH0138)。

摘　　要：玄武岩鳞片是一种新型环保材料,在提高防腐涂层性能方面有广阔的应用前景。本课题对玄武岩鳞片的厚度、成分、结晶性、微观形貌等基本性能参数进行了表征,采用硅烷偶联剂KH-550对玄武岩鳞片进行表面改性,将经过硅烷偶联剂处理的玄武岩鳞片加入环氧树脂E51中制备重防腐涂层,研究鳞片的添加量和鳞片粒径对涂层耐磨性、硬度、吸水性以及耐碱腐蚀性的影响。测试结果表明:加入玄武岩鳞片的涂层,表面硬度有较大提高;玄武岩鳞片的粒径和含量对于涂层性能的影响具有耦合效应;玄武岩鳞片的质量分数为6%,尺寸在60目~80目之间时,涂层的耐磨性最好;在涂层吸水性方面,随着鳞片含量的增加,涂层的吸水性降低;在耐碱腐蚀方面,随着鳞片粒径的减小,涂层的耐碱腐蚀性增强,随着鳞片含量的增加,涂层的耐碱腐蚀性先增强后减弱,在玄武岩鳞片的质量分数为9%时耐碱腐蚀性最强。Basalt flake is a new kind of environmental protection material,which has a broad application prospect in improving the performance of anticorrosive coatings.The basic performance parameters such as thickness,composition,crystallinity and micromorphology of basalt scales were characterized in this paper.Basalt scales were modified with silane coupling agent kh-550.Basalt scales treated with silane coupling agent were added to epoxy resin E51 to prepare heavy anticorrosive coating.The effects of addition amount and particle size of the scales on wear resistance,hardness,water absorption and alkali corrosion resistance of the coating were studied.The test results show that the surface hardness of the coating with basalt scales increases greatly.The particle size and content of basalt scales have coupling effect on coating properties.It is found that basalt scale mass fraction of 6%,size between 60 and 80 mesh produce the best wear resistance coating.With the increase of scale content,the water absorption of coating decreases.In the aspect of alkali corrosion resistance,the alkali corrosion resistance of the coating increases with the decrease of the size of the scale,and then decreases with the increase of the scale content.The alkali corrosion resistance of the coating is the strongest when the mass fraction of the basalt scale is 9%.

关 键 词：玄武岩鳞片 表面改性 无溶剂环氧重防腐涂层 耐腐蚀性 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]