PEW-g-MAH/改性SiO_(2)协同消光紫外光固化材料研究  

Study on UV-curing materials synergistic matting with PEW-g-MAH/modified SiO_(2)

作　　者：杨自远 吴建兵 马国章[1,2] 侯彩英 牛艳霞 段华锋[1,2] 郝晓刚 YANG Zi-yuan;WU Jian-bing;MA Guo-zhang;HOU Cai-ying;NIU Yan-xia;DUAN Hua-feng;HAO Xiao-gang(College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Key Laboratory of Functioned Polymers for Coatings,Shanxi Research Institute of Applied Chemistry,Taiyuan 030027,China)

机构地区：[1]太原理工大学化学化工学院,山西太原030024 [2]涂装高分子功能材料山西省重点实验室山西省应用化学研究所,山西太原030027

出　　处：《热固性树脂》2021年第3期25-30,35,共7页Thermosetting Resin

基　　金：山西省青年拔尖人才项目(20180509);山西省重点研发计划项目(201903D121112)。

摘　　要：采用硅烷偶联剂KH560与马来酸酐/甲基丙烯酸羟乙酯(MAH/HEMA)对二氧化硅表面改性,并将其与马来酸酐接枝聚乙烯蜡(PEW-g-MAH)一起作为由聚氨酯丙烯酸酯(PUA)低聚物制备的光固化材料的消光剂。通过傅里叶红外光谱(FTIR)、热重分析(TGA)及接触角和光泽度测定研究了PEW-g-MAH用量对PUA/SiO_(2)涂料性能的影响。结果表明:PEW-g-MAH在一定程度上降低了PUA/SiO_(2)紫外光固化涂料的表面光泽,同时也提高了材料的附着力和耐磨性。PEW-g-MAH和改性SiO_(2)的质量分数分别为1.40%和1.30%时,涂膜的光泽度(60°)19.5,水接触角72.2°,附着力等级0,磨耗失重率降至0.10%。The surface of silica was modified by silane coupling agent KH560 and maleic anhydride/hydroxyethyl methacrylate(MAH/HEMA).The modified silica was combined with maleic anhydride grafted polyethylene wax(PEW-g-MAH)as a matting agent for UVcuring materials prepared from polyurethane acrylate(PUA)oligomers.The effect of PEW-g-MAH amount on the properties of PUA/SiO_(2)coatings was studied by FTIR,TGA and tests of contact angle and gloss.The results showed that the surface gloss of PUA/SiO_(2)UV-curable coatings was decreased to a certain extent by PEW-g-MAH,and the adhesion and abrasion resistance of the material were also improved.When the mass fractions of PEW-g-MAH and modified SiO_(2)were 1.40%and 1.30%,respectively,the gloss(60°),water contact angle and adhesion level of the coating film was 19.5,72.2°and 0,respectively,and the abrasion weight loss rate was reduced to 0.10%.

关 键 词：二氧化硅消光剂 表面改性 聚氨酯丙烯酸酯 聚乙烯蜡 UV固化 哑光涂料 

分 类 号：TQ630.4[化学工程—精细化工] TQ316.312