Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Preparation and Characterization of PU Flame-Retardant Coatings Using Modified Polyester Containing Phosphorus/Chlorine and HDI-Trimer

인과 염소 함유 변성폴리에스터와 HDI-Trimer에 의한 PU 난연도료의 제조 및 도막특성화

  • Park, Hong-Soo (Department of Chemical Engineering, Myongji University) ;
  • Kim, Song-Hyoung (Department of Chemical Engineering, Myongji University) ;
  • Hong, Seok-Young (Department of Chemical Engineering, Myongji University) ;
  • Yoo, Gyu-Yeol (Department of Chemical Engineering, Myongji University) ;
  • Ahn, Sung-Hwan (Department of Chemical Engineering, Myongji University) ;
  • Hahm, Hyun-Sik (Department of Chemical Engineering, Myongji University)
  • 박홍수 (명지대학교 공과대학 화학공학과) ;
  • 김송형 (명지대학교 공과대학 화학공학과) ;
  • 홍석영 (명지대학교 공과대학 화학공학과) ;
  • 유규열 (명지대학교 공과대학 화학공학과) ;
  • 안성환 (명지대학교 공과대학 화학공학과) ;
  • 함현식 (명지대학교 공과대학 화학공학과)
  • Published : 2006.12.31
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Abstract

The PU flame-retardant coatings (TTBAH, ATBAH-10C, -20C, and -30C) were prepared using the synthesized ATBAs and HDI-trimer as curing agent at room temperature. The physical properties of PU flame-retardant coatings with chlorine and phosphorus were inferior to those with phosphorus only and the properties were getting worse with increasing chlorine content. Flame retardancy was tested with three methods. With the vertical method, complete combustion time of ATBAHs were $259^{\sim}347$ seconds, which means that the prepared coatings are good flame-retardant. With the $45^{\circ}$ Meckel burner method, char lengths of the three prepared coatings were less than 2.9 cm, which indicates that the prepared coatings are first grade. With the limiting oxygen index (LOI) method, the LOI values of the three prepared coatings were in the range of $30^{\sim}35%$, which proves good flame retardancy of the prepared coatings. from the result of flame retardancy tests of the specimens that contain the same amounts of flame retarding compounds. it was found that the coatings containing both phosphorus and chlorine show higher flame retardancy than the coatings containing only phosphorus. This indicates that there exists, some synergy effect between coexisting phosphorus and chlorine.

Keywords

References

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