학술논문
TA/SiO2疏水涂层及其对混凝土抗侵蚀性能的影响 / TA/SiO2 Hydrophobic Coating and Its Effect on Corrosion Resistance of Concrete
Document Type
Academic Journal
Author
Source
建筑材料学报 / Journal of Building Materials. 27(1):30-36
Subject
Language
Chinese
ISSN
1007-9629
Abstract
基于贻贝仿生原理,成功制备了单宁酸(TA)/SiO2疏水涂层,通过设置22组工艺组合,综合水接触角、电通量和表面微观结构,得到了涂层的最优制备工艺.针对最优制备工艺涂层,通过自然扩散试验研究了其对混凝土抗离子渗透性能的影响,并采用磨耗和酸碱腐蚀试验研究了涂层稳定性.结果表明,TA/SiO2 疏水涂层表面具有丰富的微纳米结构,水接触角达 148.1°,至少能够减少75.31%的离子渗透进入混凝土,且稳定性优良.
A new type of anticorrosive coating for concrete,glycerite(TA)/SiO2 hydrophobic coating was developed successfully based on the mussel bionic principle.Twenty-two sets of process combinations were set up to obtain the optimal preparation process for the coating in terms of the water contact angle,electric flux value and surface microstructure.The effect of the coating from the optimal preparation process on the anti-ionic penetration performance of concrete was investigated by natural diffusion test,and the stability of the coating was investigated by abrasion and acid-alkali corrosion test.The results show that the TA/SiO2 hydrophobic coating surface has rich micro and nano structures,with a water contact angle 148.1°,which can improve the ion penetration of concrete by at least 75.31%,and has excellent stability.
A new type of anticorrosive coating for concrete,glycerite(TA)/SiO2 hydrophobic coating was developed successfully based on the mussel bionic principle.Twenty-two sets of process combinations were set up to obtain the optimal preparation process for the coating in terms of the water contact angle,electric flux value and surface microstructure.The effect of the coating from the optimal preparation process on the anti-ionic penetration performance of concrete was investigated by natural diffusion test,and the stability of the coating was investigated by abrasion and acid-alkali corrosion test.The results show that the TA/SiO2 hydrophobic coating surface has rich micro and nano structures,with a water contact angle 148.1°,which can improve the ion penetration of concrete by at least 75.31%,and has excellent stability.