纳米二氧化锆溶胶对有机硅耐磨涂料性能的影响  

The Effect of Nano-Zirconia Sol on the Properties of Silicone Abrasion Resistant Coatings

作　　者：刘仲阳 狄志刚 何毅 勾运书 史立平 谭伟民 王亚鑫 Liu Zhongyang;Di Zhigang;He Yi;Gou Yunshu;Shi Liping;Tan Weimin;Wang Yaxin(CNOOC Changzhou Paint and Coatings Industry Research Institute Co.,Ltd.,Changzhou,Jiangsu 213016,China)

机构地区：[1]中海油常州涂料化工研究院有限公司,江苏常州213016

出　　处：《涂料工业》2021年第11期9-13,19,共6页Paint & Coatings Industry

基　　金：中国海洋石油集团有限公司科技项目。

摘　　要：以纳米二氧化锆溶胶、去离子水、乙酸、正硅酸甲酯(TMOS)、甲基三甲氧基硅烷(MTMS)、苯基三乙氧基硅烷(PTES)、γ-(2,3-环氧丙氧)丙基三甲氧基硅烷(KH-560)为原料,采用溶胶-凝胶法合成了系列有机硅树脂;研究了纳米二氧化锆溶胶、催化剂和溶剂等因素对应用于聚甲基丙烯酸甲酯(PMMA)基材上的有机硅耐磨涂料综合性能的影响。结果表明:不加纳米二氧化锆溶胶制备的树脂,以1,8-二氮杂环[5,4,0]十一烯-7(DBU)为催化剂,每100 g涂料中用量为100 mg,以混合溶剂异丙醇/醋酸丁酯/乙二醇乙醚/丙二醇甲醚醋酸酯(质量比4∶1∶2∶1)为稀释剂,润湿流平剂BYK-333用量为涂料的0.3%,可制备出附着力为0级,硬度为5H,耐磨和耐水煮性能优异的有机硅耐磨涂料。纳米二氧化锆溶胶的添加可提高树脂的折射率,但随着溶胶用量的增加,漆膜的交联能力、耐磨性、耐水性、透明性等性能逐渐降低。A series of the silicone resins were synthesized by use of the nano-zirconia sol,deionized water,acetic acid,methyl n-silicate(TMOS),methyl trimethoxy silane(MTMS),phenyl triethoxy silane(PTES),γ-(2,3-epoxy propoxy)propyl trimethoxy silane(KH-560)as raw materials through the sol-gel method. The influences of the nano-zirconia sol,the catalyst for curing and the solvents on the comprehensive properties of the silicone coatings on the polymethyl methacrylate(PMMA)substrate were studied. The silicone abrasion resistant coating with excellent performances was prepared by using the DBU [1,8-diazabicyclo(5,4,0)undec-7-ene] as the curing catalyst at the dose of 100 mg per 100 g coating,mixed solvent of isopropyl alcohol/butyl acetate/glycol ether/propylene glycol methyl ether acetate(4∶1∶2∶1 m/m/m/m)as the diluent and BYK-333(0. 3%)as the wetting and levelling agent,giving the adhesion grade 0,hardness 5 H,excellent abrasion resistance and water resistance. The addition of the nano-zirconia sol could increase the refractive index of the resins,but with the increasing of the sol dosage,the properties of the paint film,such as the cross-linking ability,the abrasion resistance,the water resistance and the transparencydecreased gradually.

关 键 词：纳米二氧化锆溶胶 有机硅 耐磨 

分 类 号：TQ637[化学工程—精细化工]