인과 염소 함유 변성폴리에스테르와 APT-Trimer에 의한 PU 난연도료의 제조 및 도막물성

• 영문명: Preparation and Physical Properties of PU Flame-Retardant Coatings Using Modified Polyester Containing Phosphorus/Chlorine and APT-Trimer
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 박홍수(Park HongSoo) 조혜진(Jo HyeJin) 심일우(Shim IlWoo) 함현식(Hahm HyunSik) 김승진(Kim SeungJin) 성기천(Sung KiChun)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제22권 제3호, 270~280쪽, 전체 11쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2005.09.30

영문 초록

To maximize a synergy effect in flame-retardancy of flame-retardant coatings, phosphorus and chlorine were introduced in polymer chains. Two-components PU flame-retardant modified polyesters (ABTTC-10C, -20C, -30C) were prepared by curing, at room temperature, of isocyanate (allophanate-trimer) and prepared modified polyesters which contain phosphorus and chlorine. To examine the film properties of the prepared flame-retardant coatings, film specimens were prepared with the prepared coatings. The film properties of ABTTC, ABTTC-10C and ABTTC-20C, which contain 0, 10 and 20wt%, 2,4-dichlorobenzoic acid (2,4-DCBA), respectively, were proved to be good, whereas the film properties of ABTTC-30C, which contains 30wt% 2,4-DCBA, were proved to be a little bit poor. Two kinds of flame retardancy tests, 45^{circ}Meckel burner method and LOI method, were performed. With the 45^{circ}Meckel burner method, three flame-retardant coatings except ABTTC showed less than 3.4 cm of char length, and showed less than 2 seconds of afterflaming and afterglow. From this result, the prepared flame-retardant coatings were proved to have the 1st grade flame retardancy. With the LOI method, the LOI values of the coatings containing more than 10wt% 2,4-DCBA were higher than 30wt%, which means that the coatings possess good flame-retardancy. From these results, it was found that synergistic effect in flame-retardancy was taken place by the introduced phosphorus and chlorine.

키워드

phosphorus/chlorine APT-trimer PU flame-retardant coatings