摘要
用酸催化溶胶-凝胶法制得SiO2溶胶,分别采用共混法和原位聚合法制备含氟聚丙烯酸酯/SiO2纳米杂化涂层。利用红外光谱、扫描电镜等表征了杂化涂层的结构、形态及SiO2相的分散性;研究了SiO2含量、分布和界面状况等与杂化涂层的表面性能和力学性能的关联与影响。结果表明,SiO2在两种方法制备的杂化涂层中均以Si-O网络的形式存在,原位聚合法中SiO2相的分散性优于共混法;含氟聚丙烯酸酯涂层中引入SiO2相后,涂层性能明显提高,共混法的疏水性优于原位聚合法;二者的力学性能随SiO2相含量变化的趋势相同,原位聚合法略优于共混法。
Silica sols were synthesized by an acid-catalyzed sol-gel process and fluoro-acrylate polymer/SiO2 hybrid materials were prepared by the in-situ polymerization and blending method.The structure,morphologies of the hybrid coating and the dispersion of SiO2 in coatings were characterized by FT-IR and SEM.The effects of content,distribution and interfacial conditions of inorganic disperse phase on the surface and mechanical properties of hybrid coatings were investigated.It was found that in the hybrid coating...
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2008年第2期22-27,71,共7页
Journal of National University of Defense Technology
基金
国家部委资助项目
