화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.28, No.13, 1211-1219, December, 2020
DOI10.1007/s13233-020-8165-2  Export Citation
Investigation of Aluminate Coupling Agent as Modifier and Its Application on Improving Flame Retardant of Intumescent Flame Retardant Coatings
Haoran Jiang1, 2, Yong Jiang1, †, Xianli Zhu1, and Yachao Wang2
  • 1State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China
  • 2College of Resource Engineering, Xi’an University of Architecture & Technology, Xi’an, Shaanxi 710055, P. R. China
E-mail:
Intumescent flame retardant coating modified by aluminate coupling agent were prepared via sol-gel method using ammonium polyphosphate, polyacrylamide, aluminate coupling agent (ACA), and boron nitride (BN). The effect of modification of ACA on its flame retardant and characterization were preliminarily studied by cone calorimeter, scanning electron microscope, surface tensiometer and contact angle measurement. It is found that the addition of ACA can increase the expansion rate of carbon layer, and a stronger blocking effect can lead to a better property of flame retardant. The sample containing BN, after being modified by 3M NaOH and ACA, dramatically decreases heat release rate, especially reduce the peak heat release rate (pHRR) by 54% and total heat release by 16%, respectively. Moreover, the time to ignition was delayed by 175%. Through examining the residues and pyrolysis products of the coating samples, the mechanism of enhanced flame retardant that promotes the char-forming and heat barrier of the modification of ACA and BN is proposed. This work can offer a significant guide for further studying of ACA and modified BN on the flame retardant.
Keywords:intumescent flame retardant coating;aluminate coupling agent;modified boron nitride;cone calorimeter
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