PMMA 입자특성과 광확산필름의 광특성과의 상관관계에 관한 실험적 연구

Effect of PMMA Particle Characteristics on Optical Diffusion Films

Crosslinked poly(methyl methacrylate) particles from 2.4 to 8.1{mu}m in diameter were prepared by homogenized suspension polymerization. The effect of polymerization parameters such as homogenizing speed, homogenizing time and stabilizer concentration on the particle size were examined. Optical diffusion films were prepared with the crosslinked poly(methyl methacrylate) particles. The effect of film thickness, particle size, and particle size distribution on transmittance and haze of optical diffusion film was examined. Transmittance of optical diffusion film increased with increasing particle size and decreasing film thickness. Haze increased with increasing film thickness and decreasing particle size. We also found the existence of an optimum ratio for optical performance when the mixture of small particle and large particle was used.