摘要
将阴离子表面活性剂十二烷基硫酸钠(SDS)改性的纳米TiO2,以不同含量与漆酚环氧清漆相混合,制得分散比较均匀的纳米复合涂料.用红外光谱(FT-IR),透射电镜(TEM)和扫描电镜(SEM)表征了其结构,并测试了其机械性能、耐酸碱以及耐高温能力.结果表明,改性后的纳米TiO2和漆酚缩醛环氧清漆之间存在着较强的氢键,纳米TiO2的加入有利于提高漆酚环氧清漆涂料的耐碱和耐高温性能,同时也拥有优良的机械性能,当纳米TiO2的含量为4%～5%时,与未加入纳米TiO2的漆酚缩醛环氧清漆相比, 耐碱能力提高56.7%,最高耐受温度提高了50 ℃.
Titanium dioxide nanoparticles （TiO2） treated with anionic surfactant sodium dodecyl sulfate （SDS） were dispersed into urushiol acetal epoxy Varnish in different mass ratio to get composite paints. Composite paints were characterized by infrared spectrometry（FT-IR）, transmission electron microscope（TEM）, scanning electron microscope（SEM）,and its mechanical properties, alkali-resistant, acidresistant and heat-resistant abilities were measured. The results indicate that there are strong hydrogen bond reactions between urushiol acetal epoxy varnish and titanium dioxide nanoparticles. And adding TiO2 nanoparticles can increase the alkali-resistant, acid-resistant and heat-resistant abilities. Compared with the paint without nanoparticles, adding 4% or 5% nano-TiO2 results in 56.7% increase of the alkali-resistant ability and 50℃ increase of the highest temperature of heat-resistant respectively of nanometer composite paint.
出处
《武汉大学学报（理学版）》
CAS
CSCD
北大核心
2005年第4期439-442,共4页
Journal of Wuhan University:Natural Science Edition
基金
国家自然科学基金资助项目(30170757)
