Article
  • Thermal Stability of Polyurethane Foams Infused with Melamine-phosphate Coated Inorganic Flame Retardants
  • A-Ram Joo, Joon-Hyuk Lee*, Yong-Geun Park, and Soon-Hong Lee

  • Department of Environmental Engineering, Anyang University, 22, 37beon-gil, Samdeok-ro, Manan-gu, Anyang-si, Gyeonggi-do 14028, Korea
    *Department of Chemical Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea

  • 멜라민-포스페이트 코팅 무기난연제를 함유한 폴리우레탄 폼의 열안정성 평가
  • 주아람 · 이준혁* · 박용근 · 이순홍

  • 안양대학교 환경공학과, *한양대학교 화학공학과

Abstract

The thermal stability of rigid polyurethane foam (r-PUF) depends on the chemical properties including polyol, isocyanate, and flame-retardants. In this study, melamine-phosphate flame-retardants coated with porous kaolin (K-MP) in aqueous solution were synthesized to compare the long-term thermal stability with commercial melamine-phosphate (MP) containing r-PUF. Thermogravimetric analysis (TGA) was mainly employed to estimate the long-term thermal stability of r-PUF by flame-retardants at pyrolytic temperature of 90 wt% loss. It was shown that MP based r-PUF holds the lowest remaining weight of 19.1 wt%. The TGA data further confirmed that K-MP based r-PUF (MP 7.9 wt%) holds 26.3 wt%, which shows lower decomposition rate than MP based r-PUF of 23.4 wt% after the thermal test. Moreover, r-PUF with fire retardants had reached early decomposition stage faster than r-PUF but had gradually decreased decomposition rate in the long-run.


폴리우레탄 폼의 열안정성 향상을 위해 다공성화시킨 카올린에 melamine-phosphate 난연제를 코팅시켜 난연무기소재(kaolin-melamine phosphate, K-MP)를 제조하였으며, 시판 MP 난연제와 K-MP를 각각 첨가하여 폴리우레탄폼을 제조하였다. TGA를 이용하여 난연제에 따른 우레탄폼의 열안정성을 비교하였으며, 기본 우레탄폼의 90 wt%가 분해되는 온도에서 장기열안정성을 분석하였다. 기본 폴리우레탄 폼과 난연제가 첨가된 폼의 TGA 측정결과, 기본 폴리우레탄 폼의 무게잔량이 19.1 wt%로 가장 적었으며, K-MP와 시판 MP의 7.9 wt% 첨가 샘플에서 K-MP 첨가 폴리우레탄 폼의 무게잔량은 26.3 wt%으로 시판 MP의 무게잔량인 23.4 wt%보다 많은 무게잔량을 보유하였다. 또한 난연제 첨가 폴리우레탄 폼에서의 초기 분해가 기본 폴리우레탄 폼보다 빨리 진행되었지만, 장기간 유지했을 경우 분해 속도가 점차 줄어들어 기본 폴리우레탄 폼보다 장기적인 열안정성을 보였다.


Keywords: rigid polyurethane foam, flame-retardant, melamine-phosphate, kaolin, thermogravimetric analysis

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2018; 42(2): 288-297

    Published online Mar 25, 2018

  • 10.7317/pk.2018.42.2.288
  • Received on Sep 1, 2017
  • Revised on Oct 11, 2017
  • Accepted on Oct 12, 2017

Correspondence to

  • Soon-Hong Lee
  • Department of Environmental Engineering, Anyang University, 22, 37beon-gil, Samdeok-ro, Manan-gu, Anyang-si, Gyeonggi-do 14028, Korea

  • E-mail: leesh@anyang.ac.kr