The Synergistic Effect of Ionic Liquid-Modified Expandable Graphite and Intumescent Flame-Retardant on Flame-Retardant Rigid Polyurethane Foams

被引：33

作者：

Chen, Yongjun ^{[1
]}

Luo, Yuanfang ^{[1
]}

Guo, Xiaohui ^{[1
]}

Chen, Lijuan ^{[2
]}

Jia, Demin ^{[1
]}

机构：

[1] South China Univ Technol, Coll Mat Sci & Engn, Key Lab Guangdong Prov High Property & Funct Macr, Guangzhou 510641, Peoples R China

[2] Guangzhou Univ, Sch Chem & Chem Engn, Ctr Adv Analyt Sci, Guangzhou 510006, Peoples R China

来源：

MATERIALS | 2020年 / 13卷 / 14期

关键词：

polyurethane foam; expandable graphite; ionic liquid; flame-retardant; synergistic flame-retardant; THERMAL-DEGRADATION;

D O I：

10.3390/ma13143095

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, a nitrogen-phosphorus intumescent flame-retardant 3-(N-diphenyl phosphate) amino propyl triethoxy silane (DPES), the ionic liquid (IL) of 1-butyl-3-methyl-imidazole phosphate, and a phosphorous-containing ionic liquid-modified expandable graphite (IL-EG), were synthesized, and their molecular structures were characterized. The flame-retardant rigid polyurethane foams (RPUFs) were compounded with synergistic flame-retardant IL-EG/DPES to study the effects of the combination IL-EG and DPES on the pore structure, mechanical properties, thermal decomposition behavior and thermal decomposition mechanism of RPUF. The results showed that IL-EG/DPES had good thermal stability, and an excellent expansibility and char yield. The flame-retardant RPUF, modified with IL-EG and DPES at the ratio of 1:1, had a relatively uniform pore size, the highest compressive strength, and an excellent flame-retardant performance due to the form interwoven hydrogen bonds between IL-EG and DPES, as well as the new synergistic flame-retardant coating on the RPUF surface to restrict the transfer of gas or heat into the PU matrix.

引用

页数：16

共 35 条

[1]

Agne K., 2020, MATERIALS, V13, P1438

[2] Flame retardant and weathering resistant self-layering epoxy-silicone coatings for plastics [J].

Beaugendre, A. ;

Lemesle, C. ;

Bellayer, S. ;

Degoutin, S. ;

Duquesne, S. ;

Casetta, M. ;

Pierlot, C. ;

Jaime, F. ;

Kim, T. ;

Jimenez, M. .

PROGRESS IN ORGANIC COATINGS, 2019, 136

[3] Coated vs. naked red phosphorus: A comparative study on their fire retardancy and smoke suppression for rigid polyurethane foams [J].

Cao, Zhi-Jie ;

Dong, Xue ;

Fu, Teng ;

Deng, Shi-Bi ;

Liao, Wang ;

Wang, Yu-Zhong .

POLYMER DEGRADATION AND STABILITY, 2017, 136 :103-111

[4] Key role of magnesium hydroxide surface treatment in the flame retardancy of glass fiber reinforced polyamide 6 [J].

Casetta, M. ;

Michaux, G. ;

Ohl, B. ;

Duquesne, S. ;

Bourbigot, S. .

POLYMER DEGRADATION AND STABILITY, 2018, 148 :95-103

[5] Synergistic effect of carbon and phosphorus flame retardants in rigid polyurethane foams [J].

Chen, Xiao-Yu ;

Huang, Zong-Hou ;

Xi, Xiu-Qi ;

Li, Jia ;

Fan, Xin-Yu ;

Wang, Zhan .

FIRE AND MATERIALS, 2018, 42 (04) :447-453

[6] Structure and Flame-Retardant Actions of Rigid Polyurethane Foams with Expandable Graphite [J].

Chen, Yongjun ;

Luo, Yuanfang ;

Guo, Xiaohui ;

Chen, Lijuan ;

Xu, Tiwen ;

Jia, Demin .

POLYMERS, 2019, 11 (04)

[7]

Chuan J., 2014, J HAZARD MAT, V266, P114, DOI [10.1016/j.jhazmat.2013.12.02524389005, DOI 10.1016/J.JHAZMAT.2013.12.02524389005]

[8]

Frederic B., 2006, POLYM ADV TECHNOL, V17, P304

[9] Thermal degradation and flame retardancy of rigid polyurethane foams containing a novel intumescent flame retardant [J].

Gao, Ming ;

Wu, Weihong ;

Liu, Song ;

Wang, Yanxia ;

Shen, Tengfei .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2014, 117 (03) :1419-1425

[10]

Hai L., 2020, POLYM DEGRAD STABIL, V178

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