Transmittance and Responce Properties of the Light Transmission Controllable Films Prepared with Dipole Particles Suspension

,; ,; ,; ,; ,; ,; ,; ,

J. Korean Ceram. Soc. > Volume 32(1); 1995 > Article

Journal of the Korean Ceramic Society 1995;32(1): 131.

분극성입자 현탁액을 이용한 투과도 가변필름의 투과도 및 응답특성

이영우, 김응수, 유병석, 이정훈

한국유리공업주식회사 기술연구소

Transmittance and Responce Properties of the Light Transmission Controllable Films Prepared with Dipole Particles Suspension

ABSTRACT

In order to improve transmittance and response properties, various compositions of light controllable films were prepared by phase separation method. The optical and response properties were measured with the variation of PMMA/suspension ratio and block copolymer/light polarizing particles. According to the increase of the PMMA/suspension ratio, the separated droplets of suspension were interconnected in the film. Decay time was 2.6 sec when PMMA/suspension ratio was 0.5 : 1 and ΔT(difference of the transmittance at OFF/ON states) was reduced with increasing of the ratio of PMMA/suspension. On block copolymer/light polarizing particles ratio variation, the highest transmittance of the film was 67.4% when its ratio was 0.6 : 1 and decay time was varied from 2.15 to 46.6 sec as block copolymer content increased 0.2 : 1 to 1 : 1.

Key words: Dipole particles, Suspension, Films, Phase separation