Hard Coatings on Polycarbonate Plate by Sol-Gel Reactions of [3-(methacryloyloxy)propyl]trimethoxysilane

폴리카보네이트 판 위에 [3-(methacryloyloxy)propyl]trimethoxysilane의 졸-겔 반응을 이용한 하드 코팅

  • Ji, Young Jon (Department of Chemistry, Chungbuk National University) ;
  • Shin, Young Jae (Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Shin, Yeon Rok (Department of Chemistry, Chungbuk National University) ;
  • Kim, Ju Youn (Department of Chemistry, Chungbuk National University) ;
  • Yoon, Yeo Seong (Korea Automotive Technology Institute) ;
  • Shin, Jae Sup (Department of Chemistry, Chungbuk National University)
  • Received : 2006.01.16
  • Accepted : 2006.02.17
  • Published : 2006.03.30

Abstract

The hard coatings on the polycarbonate plate were performed with the object of substitution the glass in the car to the polycarbonate plate. In this research, [3-(methacryloyloxy)propyl]trimethoxysilane were used to prepare the coatings by sol-gel process. Butanol was used as a solvent, HCl was used as a catalyst, and AIBN was used as an initiator. Polycarbonate plate was pretreated with PMMA, and final heating of the coating was done at $130^{\circ}C$ for 6 h. Pencil hardness of the coating was 2 H, abrasion resistance and adhesion of the coating were excellent.

자동차의 유리를 폴리카보네이트로 대체하기 위하여 폴리카보네이트 판 위에 하드 코팅을 시도하였다. 본 연구에서는 [3-(methacryloyloxy)propyl]trimethoxysilane으로부터 졸-겔 과정을 이용하여 코팅을 실시하였다. Butanol을 용매로 사용하였고, 촉매로는 HCI을 이용하였으며, 개시제로는 AIBN을 이용하였다. 폴리카보네이트 판은 PMMA를 이용하여 전처리를 하였으며, 코팅의 열처리는 $130^{\circ}C$에서 6 h 동안 하였다. 형성된 코팅의 연필 경도는 2 H이었고, 내마모성과 접착력이 매우 우수한 코팅이 형성되었다.

Keywords

Acknowledgement

Grant : 고기능성 플라스틱 경량 windshield 개발

Supported by : 산업자원부