摘要
以聚甲基丙烯酸甲酯(PMMA)溶胀包裹纳米炭黑制备的复合粒子作为吸光性散射微粒,聚氨酯丙烯酸酯树脂为UV固化主体树脂,光学级聚酯(PET)薄膜为基材,采用湿法涂布方式制备了UV固化吸光防眩涂层。研究了纳米炭黑溶胀包裹比例、吸光性散射微粒含量以及涂层厚度对UV固化涂层光学性能的影响,分析了纳米炭黑溶胀包裹比例与涂层吸光度之间的关系。研究结果表明:制备的UV固化吸光防眩涂层兼具优异的防眩光和一定的吸光性能,能有效缓解液晶显示屏幕发白和晃眼等问题;随着纳米炭黑溶胀包裹比例的增大以及吸光性散射微粒含量的增加,涂层的光线透过率降低,雾度值升高,镜面光泽下降。此外,涂层吸光度与纳米炭黑溶胀包裹比例之间呈现出良好的线性关系,符合Lambert-Beer定律。
A kind of UV curable absorbing and anti-glare coating was prepared by wet coating method using nano-carbon composite particles encapsulated with swelled PMMA particles as light absorption and scattering particles, urethane acrylate resin as UV curable prepolymer resin, and optical grade polyester （PET） film as substrate. The effect of the mass ratio of nano-carbon to PMMA, amount of light absorption and scattering particles, and film thickness on optical properties of the cured film were studied. The relationship between the mass ratio of nano-carbon to PMMA and absorbance of the cured film was also explored. The results showed that coating had not only excellent anti-glare performance but also light absorption property, which could effectively alleviate the reflective and glare problem of the liquid crystal display screen. The total transmittance of the coating significantly reduced, the haze gradually increased and the gloss decreased with the increase of the mass ratio of nano-carbon to PMMA and the amount of light absorption and scattering particles. In addition, the absorbance of the coating and the mass ratio of nano-carbon to PMMA showed a good linear relationship, which conformed to the Lambert-Beer＇s law.
出处
《涂料工业》
CAS
CSCD
北大核心
2016年第7期12-16,21,共6页
Paint & Coatings Industry
基金
湖北省自然科学基金重点项目(2014CFA095)
低维光电材料与器件湖北省重点实验室开放基金资助项目(HLOM142021)
关键词
UV固化涂层
吸光
防眩光
UV curable coating
light absorbing
anti-glare
