摘要
以聚氨酯丙烯酸酯(PUA)、1,6-己二醇二丙烯酸酯(HDDA)、季戊四醇三丙烯酸酯(PETA)、甲基丙烯酸六氟丁酯(G02)、十七氟癸基三甲氧基硅烷(F17-TMS)、光引发剂11732-羟基-2-甲基-1-苯基丙酮(1173)、长链烷基改性纳米SiO_2(C8H17-SiO_2)为原料,在紫外光的照射下制备了一种纳米杂化防水涂层。通过红外光谱(FT-IR)、场发射扫面电镜(SEM),接触角测量仪和热重分析仪(TGA)等对产物结构、性能进行了测试。结果表明:改性纳米SiO_2可以在光固化涂层中较均匀分散,加入改性纳米SiO_2可以明显改善涂层的疏水性、硬度、耐冲击性、耐水性,但对涂层热稳定性影响不大。
A nano hybrid waterproof coating has been prepared under UV radiation by using polyurethane acrylate, 1,6-hexanediol diacrylate （HDDA）, pentaerythritol triacryl （PETA） , hexafluorobutyl methacrylate, heptadeca fluoro deeyl trimethoxysilane （F17-TMS） , photoinitiator 1173 （2-hydroxy-2-methyl-1-phenyl acetone） and long chain alkyl modified nano silica （CsHIT-SiO2） as the raw materials. The structure and properties of the product are tested by infrared spectroscopy （FT-IR）, field emission scanning electron microscopy, contact angle measurement and thermogravimetric analyzer. The results show that the modified nano silica can be uniformly dispersed in the photo-curable coating, and the addition of modi- fied nano silica carl significantly improve the hydrophobicity, hardness, impact resistance, wa- ter resistance, whereas, has little effect on the thermal stability of the coating.
出处
《涂料工业》
CAS
CSCD
北大核心
2018年第1期54-58,共5页
Paint & Coatings Industry
基金
陕西省科技统筹创新工程计划项目(2015KTCL01-14)
陕西省教育厅服务地方专项计划项目(16JF004)
