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http://dx.doi.org/10.12925/jkocs.2003.20.4.8

Effect of PMMA Particle Characteristics on Optical Diffusion Films  

Wu, Jong-Pyo (Department of Chemical Engineering, Myongji University)
Hong, Jin-Ho (Department of Chemical Engineering, Myongji University)
Ahn, Chi-Hee (Department of Chemical Engineering, Myongji University)
Kim, Yoon-Jae (Department of Chemical Engineering, Myongji University)
Publication Information
Journal of the Korean Applied Science and Technology / v.20, no.4, 2003 , pp. 332-340 More about this Journal
Abstract
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.
Keywords
poly(methyl methacrylate); optical diffusion film; suspension;
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