滑石粉对木质材料表面水性UV涂层的影响  

Effect of talcum powder on waterborne UV coatings applied on the surface of wood materials

作　　者：闫小星[1] 蔡云婷[1] 吴燕[1] 熊国兵[1] 

机构地区：[1]南京林业大学家具与工业设计学院,南京210037

出　　处：《中国科技论文》2016年第16期1907-1911,共5页China Sciencepaper

基　　金：江苏省高校自然科学研究项目(14KJB220007);高等学校博士学科点专项科研基金资助项目(20123204120019);江苏省自然科学基金资助项目(BK20150887);江苏省高校优秀中青年教师和校长境外研修计划资助项目

摘　　要：为了改善水性紫外光（UV）涂料的力学性能和光泽度,通过在水性UV涂料中添加改性剂滑石粉,制备了在木质材料表面应用的水性UV涂料。水性UV涂料中含有质量分数为1.0%SiO2时,控制滑石粉质量分数为3.0%~4.0%,涂覆木质地板表面后,在40℃烘箱中干燥10min,并用UV灯辐射1min,水性UV涂层具有良好的硬度、附着力和抗冲击强度。当滑石粉质量分数高于4.0%时,水性UV固化涂层的力学性能反而下降。光泽度结果表明,随着改性剂滑石粉质量分数的不断增加,木质材料表面水性UV涂层的光泽度不断下降。当水性UV涂料中改性剂滑石粉的质量分数大于2.0%时,固化后涂层具有亚光。SiO2与滑石粉同时存在时,水性UV涂层的力学性能比滑石粉单独存在时的力学性能更好。To improve the mechanical properties and gloss of the waterborne ultraviolet （UV） coatings, waterborne UV coatings applied on the surface of wood materials were prepared by adding modifier talcum powder. It was found that the waterborne UV coatings possesses the good hardness, adhesion and impact strength when the mass fraction o{ SiO2 was fixed at 1.0% and the talcum powder mass fraction was 3.0%-4. 0%, and waterborne UV curing wood coatings were coated on the surface of the wood floor, dried at 40℃ for 10 rain in an oven and irradiated for 1 rain with UV lamp. However, mechanical properties of waterborne UV curing wood coatings decreased when the talcum mass fraction was higher than 4.0%. The test results showed that the gloss of waterborne UV-curing wood coatings decreased with the increase of the mass fraction content of the talc modifier. When the talcum powder mass fraction in the waterborne UV curing wood coatings exceeds 2.0%, the gloss of cured coatings displayed as matt. The mechanical property of waterborne UV coating with SiO2 and talcum simultaneously is better than that of the water-borne UV coating only with talcum powder.

关 键 词：滑石粉 木质材料 水性UV 涂层 

分 类 号：TQ630.1[化学工程—精细化工]