화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.12, No.8, 846-852, December, 2001
Export Citation
알콕시실란 함유 아크릴수지 도료의 도막물성
Physical Properties of Synthetic Acrylic Coatings Containing Alkoxysilane
이창근, 홍인권1, †
  • 한국도로공사 도로연구소, 성남 461-380
  • 1단국대학교 화학공학과, 서울 140-714
Chang Guen Lee, and In Kwon Hong1, †
  • Highway Research Center, Korea Highway Corporation, Songnam 461-380, Korea
  • 1Department of Chemical Engineering, Dankook University, Seoul 140-714, Korea
E-mail:
초록
고방식성, 고내후성의 강구조물 도료를 제조하기 위해 알콕시실란 함유 아크릴수지 및 3급아민 함유 아크릴수지의 공중합체의 T(g)를 30℃를 목표로하여 합성하였다. 도료는 알콕시실란 함유 아크릴수지인 경우에는 알콕시실란의 함량을 10, 20, 30 wt%로 변화시키면서 경화제로 DBTDL을 사용하고, 3급아민 함유 아크릴수지는 경화제로 에폭시실란의 함량을 5, 10, 15 wt%로 변화시키면서 백색도료를 제조하여 도막의 물리적 특성, 방식성 및 내후성에 미치는 영향을 무황변성 우레탄수지 도료 및 불소수지 도료와 비교하였다. 방식성은 불소 도료, 알콕시실란 10 wt%및 에폭시실란 5 wt%인 도료가 양호하게 나타났고, 알콕시실란의 함량이 증가할수록 내후성이 개선되는 경향을 나타내었다. 특히알콕시실란의 함량이 30 wt%인 도료는 불소수지 도료보다도 양호한 내후성의 범주에 속하는 도료임이 확인되었다.
To Prepare an anti-corrosive and weather-resistant coating, an acrylic coating containing alkoxysilane, alkoxysilyl-functional acrylic groups, and tertiary amine was synthesized by a radical polymerization. The composition of monomers was adjusted to have the glass transition temperature of acrylic polymer at 30 ℃. The composition of alkoxysilane in the synthesized polymer was varied from 10 wt% to 30 wt%, and di-n-butyltindilaurate (DBTDL) was used as the curing agent. Epoxysilane's content, for curing agents of acrylic resins containing tertiary amine, was varied from 5 wt% to 15 wt%. On the basis of synthesized resins, white enamel paints were prepared and their physical properties, anti-corrosion, and weather-resistance were examined. These were compared with non-yellowing polyurethane coatings and fluoro coatings. The anti-corrosion properties showed that coatings containing 10 wt% of alkoxysilane, 5 wt% of epoxysilane and fluoro coatings had superior properties. The weather-resistance of coatings was decreased with increasing alkoxysilane's content. Futhermore, the weather-resistance results showed that the acrylic coatings containing 30 wt% of alkoxysilane had better properties than fluoro coatings.
Keywords:acrylic resin;alkoxysilane;epoxysilane;anti-corrosion property;weather-resistance
  1. Parsons P, "Surface Coatings Raw Materials and Their Usage," p. 215-216, Chapman & Hall, London (1995)
  2. Munger CG, J. Protec. Coat. Linings, 6(6), 187 (1989)
  3. Romangnoli R, Amo BD, Vetere VF, J. Oil Colour Chem. Assoc., 83(1), 27 (2000)
  4. Hare CH, J. Protec. Coat. Linings, 17(11), 34 (2000)
  5. Tournut C, Kappier P, Perillon JL, J. Oil Colour Chem. Assoc., 78(3), 99 (1995)
  6. Pappas SP, Fisher RM, J. Paint Coat., 46(599), 65 (1974)
  7. Iida S, Matsumoto Y, Noda S, 塗料の 硏究, 33, 41 (1999)
  8. 加藤 廉, 塗裝工學, 23(12), 501 (1988)
  9. Duvic NC, E. Coat. J., 10, 410 (1995)
  10. Nakane Y, Ishidoya M, J. Jpn. Col. Material, 69(11), 735 (1996)
  11. Kesslin G, Bradshaw R, Ind. Eng. Chem. Prod. Res. Dev., 5(1), 27 (1966) 
  12. Brezinski DR, "An Infrared Spectroscopy Atlas for the Coatings Industry," 4th ed., Vol. 1, p. 11, Desoto, Inc., Illinois (1991)
  13. Pouchert CJ, Behnke J, "The Aldrich Library of (13)C and (1)H FT-IR Spectra," vol. 1, Aldrich Chemical Co. Inc., Milwawkee (1993)