Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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The Scattering Property of EVA/SiO2 Composite Film Formed Micro-aggregation Structure for Roll-to-roll Process

Roll-to-roll 적용 가능한 마이크로 응집 구조를 갖는 EVA/SiO2 복합 필름의 산란 특성

  • Jo, Kuk Hyun (Department of Organic Materials Science and Engineering, Pusan National University) ;
  • Yang, Jun Yeong (Department of Organic Materials Science and Engineering, Pusan National University) ;
  • Lee, Si Woo (Department of Organic Materials Science and Engineering, Pusan National University) ;
  • Park, Eun Kyoung (Department of Organic Materials Science and Engineering, Pusan National University) ;
  • Choi, Geun Seok (Department of Organic Materials Science and Engineering, Pusan National University) ;
  • Song, Ki Won (Department of Organic Materials Science and Engineering, Pusan National University) ;
  • Kim, Hyo Jung (Department of Organic Materials Science and Engineering, Pusan National University)
  • 조국현 (부산대학교 유기소재시스템공학과) ;
  • 양준영 (부산대학교 유기소재시스템공학과) ;
  • 이시우 (부산대학교 유기소재시스템공학과) ;
  • 박은경 (부산대학교 유기소재시스템공학과) ;
  • 최근석 (부산대학교 유기소재시스템공학과) ;
  • 송기원 (부산대학교 유기소재시스템공학과) ;
  • 김효정 (부산대학교 유기소재시스템공학과)
  • Received : 2018.07.31
  • Accepted : 2018.09.05
  • Published : 2018.09.27
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Abstract

We fabricated high transmission and high scattering poly(ethylene-co-vinyl acetate)(EVA) films embedding $SiO_2$ nanoparticles to improve outcoupling efficiency in organic display. The 800nm diameter $SiO_2$ nanoparticles aggregated and formed $1.56{\mu}m$ (with ${\pm}0.853{\mu}m$ standard deviation) diameter microparticles in EVA. The total transmission of scattering film was 83.3% on Polyethylene terephthalate(PET), which was higher than reference 82.8% PET substrate. The diffuse transmission and haze of the $SiO_2$ embedded EVA film were 76.1% and 91.4%, respectively. The optimized condition was 1:1 weight ratio of $SiO_2$ nanoparticles to EVA in Tetrahydrofuran(THF) solution. When the ratio of $SiO_2$ was larger than 1, the total transmission decreased by the increase in backscattering of light due to high scattering. With the optimized condition, we could succeed to fabricate a large scale film(35m in length) with a roll-to-roll process.

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References

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