Study on the Preparation and Properties of Optical Film Containing Organic/Inorganic Particles

• Main Authors: Wen-Chung Chen, 陳文忠
• Other Authors: Fu-San Yen
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/47089286936661031568

碩士 === 國立高雄應用科技大學 === 化學工程系碩士班 === 95 === The preparation and properties of optical film filled with micrometric particles were evaluated with a lab-scale continuous production line and several optical property related tester, to understand the effects of various micrometer fillers in coating mixture on the film preparation and optical properties thereof. Being used as the filler for light-scattering, several types of micrometric particle, having size of 3-10 micrometer, were loaded into the transparent polymer matrix mixture consisting of solvent, oligomer, monomer, and photoinitiator. The filling particles are classified into inorganic and organic categories, and these are silicone dioxide (SiO2), mica, benzoguanamine and polystyrene (PS). The transparent polymer mixture was blended with different concentration of various filler particles using a HomoMixer at 500 rpm to form the coating mixture. The coating mixture was coated on PET substrate with continuous coater having micro-gravure. Then, the optical films were prepared after drying and UV-cure. Experimental results show the coating thickness of optical film filled with micrometric particles could be controlled by the speed ratio of machine speed to gravure speed. The film thickness increases with speed ratio. Further experimental results of surface roughness, surface gloss, cleanness, and haze were measured by Surface Roughness meter, Gloss meter, image clarity meter and Haze meter. It was shown that such kinds of optical properties are proportional with the particle concentration.