Exceptionally flame-retardant flexible polyurethane foam composites:synergistic effect of the silicone resin/graphene oxide coating

Qian Wu; Jincheng Zhang; Shengpeng Wang; Bajin Chen; Yijun Feng; Yongbing Pei; Yue Yan; Longcheng Tang; Huayu Qiu; Lianbin Wu

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Exceptionally flame-retardant flexible polyurethane foam composites:synergistic effect of the silicone resin/graphene oxide coating

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A facile strategy was developed to fabricate flexible polyurethane(PU)foam composites with exceptional flame retardancy.The approach involves the incorporation of graphene oxide(GO)into a silicone resin(SiR)solution,which is then deposited onto a PU foam surface via the dip-coating technique and cured.Fourier-transform infrared spectroscopy,scanning electron microscopy,and Raman spectroscopy measurements demonstrated that the SiR and GO were successfully coated onto the PU skeleton and the intrinsic porous structure of the PU foam remained intact.The effects of SiR and GO on the mechanical and thermal stability and flame retardancy of PU composites were evaluated through compression tests,thermogravimetric analysis,vertical combustion tests,and the limiting oxygen index.The measurement results revealed that the composites(PU@SiR-GO)showed superior flame retardancy and thermal and mechanical stability compared to pristine PU or PU coated with SiR alone.The mechanical and thermal stability and the flame-retardant properties of the PU composites were enhanced significantly with increasing GO content.Based on the composition,microstructure,and surface morphology of PU@SiR-GO composites before and after combustion tests,a possible flame-retardance mechanism is proposed.This work provides a simple and effective strategy for fabricating flame retardant composites with improved mechanical performance.

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《化学科学与工程前沿：英文版》 |2021年第4期|P.969-983|共15页
作者
Qian Wu; Jincheng Zhang; Shengpeng Wang; Bajin Chen; Yijun Feng; Yongbing Pei; Yue Yan; Longcheng Tang; Huayu Qiu; Lianbin Wu;
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Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education Hangzhou Normal University Hangzhou 311121 China;

Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education Hangzhou Normal University Hangzhou 311121 China;

Transfar Zhilian Co. Ltd. Hangzhou 311215 China;

Transfar Zhilian Co. Ltd. Hangzhou 311215 China;

Transfar Zhilian Co. Ltd. Hangzhou 311215 China;

Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education Hangzhou Normal University Hangzhou 311121 ChinaCollaborative Innovation Center of Zhejiang Province for Manufacturing of Fluorine Silicon Fine Chemicals and Materials Hangzhou Normal University Hangzhou 311121 China;

Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education Hangzhou Normal University Hangzhou 311121 China;

Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education Hangzhou Normal University Hangzhou 311121 China;

Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education Hangzhou Normal University Hangzhou 311121 ChinaCollaborative Innovation Center of Zhejiang Province for Manufacturing of Fluorine Silicon Fine Chemicals and Materials Hangzhou Normal University Hangzhou 311121 China;

Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education Hangzhou Normal University Hangzhou 311121 ChinaCollaborative Innovation Center of Zhejiang Province for Manufacturing of Fluorine Silicon Fine Chemicals and Materials Hangzhou Normal University Hangzhou 311121 China;

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原文格式 PDF
正文语种 chi
中图分类工程材料学;
关键词
flame retardancy; flexible polyurethane foam; graphene oxide; silicone resin;

机译：阻燃性;柔性聚氨酯泡沫;石墨烯氧化物;有机硅树脂;

Exceptionally flame-retardant flexible polyurethane foam composites:synergistic effect of the silicone resin/graphene oxide coating

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