화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.13, No.3, 247-251, May, 2002
Export Citation
이소시아네이트와 트리클로로 변성폴리에스테르 폴리올과의 중합에서 이소시아네이트 종류에 따른 PU 난연도료의 도막특성 및 난연성 비교
Effect of Type of Isocyanates on the Physical Properties and Flame Retardancy of PU Coatings Polymerized with Isocyanate and Trichloro Modified Polyester Polyol
임완빈, 김성길1, 양인모2, 김태옥2, 박홍수2, †
  • 기술표준원, 과천 427-010
  • 1삼화페인트공업(주), 안산 425-110
  • 2명지대학교 공과대학 화학공학과, 용인 449-728
Wan Bin Im, Seong Kil Kim1, In Mo Yang2, Tae Ok Kim2, and Hong Soo Park2, †
  • Agencty for Technology and Statndards, Kwacheon 427-010, Korea
  • 1San-Hwa Paints Ind. Co. Ltd., Ansan 425-110, Korea
  • 2Department of Chemical Engineering, Myongil University, Yongin 449-728, Korea
E-mail:
초록
전보에서 합성한 트리클로로 변성폴리에스테르 폴리올(TCAO)에 2종류의 이소시아네이트 경화제(Desmodur N-3300과 L-75)를 선정하여 상온경화시켜 PU계 난연도료(TCAO/N-3300=TCAON, TCAO/L-75=TCAOL)를 각각 제조하였다. 제조된 난연도료로서 물성시험을 시행한 결과 경도, 내마모성, 건조시간은 TCAOL쪽이, 접착력과 연화도는 서로 비슷하게, 가사시간, 60 ° 경면광택도, 점도, 촉진내후성은 TCAON쪽이 더 좋게 나타났다. 난연성분인 trichloroacetic acid 함량 30 wt%에서의 2종류 도막의 LOI값은 29~30%로 나타나 양호한 난연효과를 보여주었다.
PU flame-retardant coatings, TCAO/N-3300 (TCAON) and TCAO/L-75 (TCAOL), were prepared by curing trichloro modified polyester polyol (TCAO) with two types of isocyanate curing agents, Desmodur N-3300 and L-75, at room temperature. The physical properties of the prepared coatings were examined. The hardness, abrasion resistance, drying time of TCAOL were better than those of TCAON. However, the pot-life, 60 ° specular gloss, viscosity, accelerated weathering resistance of TCAON were better than of TCAOL. The cross-hatch adhesion and fineness of grinds were similar in both the coatings. At 30 wt% of trichloro acetic acid, which is a flame-retarding component, the LOI values of the films of the two coatings were in the range of 29~30%, indicating good flame retardancy of the coatings.
Keywords:trichloro modified polyester polyol;isocyanate;PU coating;LOI
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