Article
  • Effect of Alumina Trihydrate on Intumescent Flame Retardant Polymer Composite Coatings
  • Riyazuddin, Tentu Nageswara Rao, Imad Hussain, S. N. Khan*, and Bon Heun Koo

  • School of Materials Science and Engineering, Changwon National University, Changwon, Gyeongnam 51140, Korea *Department of Physics, Abdul Wali Khan University Mardan, Pakistan

  • 팽창성 난연 고분자 복합체 코팅에 대한 알루미나 삼수화물의 효과
  • Riyazuddin · Tentu Nageswara Rao · Imad Hussain · S. N. Khan* · 구본흔

  • 창원대학교 신소재공학부, *압둘 왈리 칸 대학교 물리학과

Abstract

A charring-foaming agent (CFA) polymer was synthesized via a nucleophile substitution reaction and used in intumescent flame retardant (IFR) coating preparations. The CFA structure was characterized by Fourier transform infrared spectroscopy (FTIR) and elemental analysis. The IFR system was composed of the ammonium polyphosphate (APP) and a foaming agent (CFA). APP and CFA were fixed at 2:1 ratio and different amount of alumina trihydrate (ATH) are loaded into an epoxy resin to prepare IFR coating compositions. The TGA results showed that the addition of ATH greatly increased the char residue percentage of the coatings at 800 oC. The UL-94V data indicated that the V-0 ratings were obtained with the addition of ATH into coatings. The cone calorimeter data showed that the peak heat release rates (PHRR) and total heat releases (THR) of the coatings remarkably decreased with the increase of ATH loading. The incorporation of ATH into epoxy/IFR enhanced the thermal stability and incombustible behavior of the coating system.


탄화 발포제(CFA) 폴리머는 친핵체 치환 반응을 통해 합성되며 팽창성 난연제(IFR) 코팅제에 사용된다. CFA 구조는 푸리에 변환 적외선 분광법(FTIR) 및 원소 분석으로 분석하였다. IFR 시스템은 암모늄 폴리 포스페이트 (APP) 및 발포제(CFA)로 구성된다. APP 및 CFA는 2:1 비율로 고정하였고 ATH 양을 바꿔가며 에폭시 수지에 첨가된 IFR 코팅제를 제조하였다. TGA 분석 결과는 800 oC에서 alumina trihydrate(ATH)의 첨가가 코팅의 열분해 잔류물(char)의 비율을 크게 증가시켰다. UL-94V 시험 결과는 코팅제에 ATH를 첨가하여 V-0 등급을 얻었음을 나타낸다. 콘칼로리미터 실험 결과는 코팅의 최대 열 방출 속도(PHRR)와 전체 열 방출(THR)이 ATH 첨가 양의 증가에 따라 현저히 감소한 것으로 확인된다. 에폭시/IFR에 ATH를 포함시키면 코팅 후에 열 안정성 및 난연성 거동이 향상되었다.


Keywords: intumescent flame retardants, foaming agent, alumina trihydrate, epoxy coating.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2018 Impact Factor : 0.500
  • Indexed in SCIE

This Article

  • 2019; 43(6): 831-837

    Published online Nov 25, 2019

  • 10.7317/pk.2019.43.6.831
  • Received on May 5, 2019
  • Revised on Jun 18, 2019
  • Accepted on Aug 18, 2019

Correspondence to

  • Bon Heun Koo
  • School of Materials Science and Engineering, Changwon National University, Changwon, Gyeongnam 51140, Korea *Department of Physics, Abdul Wali Khan University Mardan, Pakistan

  • E-mail: bhkoo@changwon.ac.kr