无卤阻燃硬质聚氨酯泡沫塑料研究进展

doi:10.11896/cldb.19100087

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Abstract Rigid polyurethane foam (RPUF) has been widely used in a variety of fields such as architecture and transportation, due to its unique properties like low density, low thermal conductivity coefficient, and excellent dimensional stability. However, there is a great fire hazard in use because of its flammability and mostly accompanied by the production of toxic gases and smoke during the combustion. Therefore, it is essential to improve the flame retardancy of RPUF. Halogen-containing materials will release corrosive gases (hydrogen halide, etc.) and toxic carcinogens (PBDD, etc.) during combustion. At present, a variety of halogen-based flame retardants are forbidden by European Union RoHS directive and Stockholm Convention of United Nations Environment Programme. Therefore, the development and application of new environment-friendly halogen-free flame retardants need to be developed urgently.
In recent year, halogen-free flame retardants have been used in the research of RPUF flame retardant modification such as phosphorus-containing flame retardant, nitrogen-containing flame retardant, inorganic flame retardant and intumescent flame retardant. The combustion degradation process and flame retardant mechanisms of RPUF were reviewed. In this paper, the latest development of flame retardant, including additive flame retardants, reactive flame retar-dants and nano-composite flame retardants used in RPUF in recent years was summarized. The flame-retardant mechanism of different flame-retardant systems were described. Developing high efficiency, halogen-free, green reactive flame retar-dants, and strengthening research on raw material sources of biomass polyurethane and modification of biomass polyurethane should be the future development trend of flame retardant RPUF.

Key words： rigid polyurethane form halogen-free flame retardant additive flame retardant reactive flame retardant nano-composite flame retardant

Published: 19 January 2021

CLC number:

TQ323.8

Fund:This work was financially supported by Fujian Province Science and Technology Planning Project (2018H6012, 2017H2001), Fujian Provincial Development and Reform Commission Graphene Technology Research and Development and Industrial Development Projects, Funding of Fujian Key Laboratory of Sports Shoe and Fabric Open Fund Project (Fujian Huafeng New Material Co., Ltd.), Subsidized Project for Postgraduates' Innovative Fund in Scientific Research of Huaqiao University.

About author:: Shaoling Lin received his B.S. degree in functional materials from Huaqiao University in 2018. He is currently pursuing his master's degree at College of Chemical Engineering, Huaqiao University under the supervision of Lec. Xiaomin Zhao and Prof. Guohua Chen. His research has focused on flame retardant polymer compo-sites.
Xiaomin Zhao received her Ph.D. degree from the Technical University of Madrid in 2017. She is currently a lecture in Huaqiao University. Her research interests include polymer flame retardancy and composite mate-rials.

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	LIN Shaoling
	LUO Zuhuo
	CHEN Danqing
	ZHAO Xiaomin
	CHEN Guohua

Cite this article:

LIN Shaoling,LUO Zuhuo,CHEN Danqing, et al. Research Progress on Halogen-free Flame Retardant Rigid Polyurethane Foam[J]. Materials Reports, 2021, 35(1): 1196-1202.

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http://www.mater-rep.com/EN/10.11896/cldb.19100087 OR http://www.mater-rep.com/EN/Y2021/V35/I1/1196

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