常温固化FEVE氟碳涂膜表面亲水性研究

Study on Surface Hydrophilicity of Ambient Cure FEVE Fluorocarbon Coatings Film

通过添加氟化硅氧烷亲水化剂使FEVE氟碳漆膜表面产生亲水性,从而提高涂膜的自洁性和耐沾污性。采用光电子能谱(XPS)、接触角测定仪对漆膜表面元素和与水接触角进行表征。实验结果表明,亲水化剂在漆膜表面明显富集,并且在较短时间内水解形成亲水化基团,获得了稳定的亲水性,漆膜表面与水接触角维持在35°以下。

Siloxane fluoride is added as hydrophilic additive to provide a hydrophilic surface of FEVE fluorocarbon paint film,so that the ability of self-cleanliness and contamination resistance of paint film is improved.Surface elements and water contact angle of paint films were characterized by using XPS and contact angle apparatus.The experimental results show that the hydrophilic additive evidently accumulates on the surface of paint films,and hydrolyzed rapidly to produce hydrophilic groups,forming a stable hyd...