木质素生物质阻燃剂及其应用研究进展

针对木质素作为生物质阻燃材料化学结构复杂、阻燃效率较低等问题,对国内外木质素在阻燃材料中的研究现状进行了综述,主要介绍了常见的4类木质素阻燃剂:单组分木质素阻燃剂、复配型木质素阻燃剂、化学改性木质素阻燃剂和纳米木质素阻燃剂,分析了木质素在阻燃体系中发挥的作用以及存在的问题;对各类阻燃剂的特点和阻燃机制进行阐述,以及木质素作为生物质阻燃材料的发展方向进行总结和展望;最后指出在4类阻燃剂中,复配型木质素阻燃剂和化学改性木质素阻燃剂阻燃性能比较优异,将木质素与其他物质复配以及对木质素进行结构改性将成为未来研究的重点。

Research progress of bio-based lignin flame retardant and its applications

Lignin is a flame retardant material with complex chemical structure and low flame retardant efficiency, the research status of lignin in flame retardant materials at home and abroad was reviewed. This paper introduced four types of lignin flame retardants: single-component lignin-based flame retardants, lignin-based composite flame retardants, chemically modified lignin flame retardants and nano-lignin flame retardants. The specific role and problems of lignin in the flame retardant system was reviewed and analyzed. The characteristics and flame retardant mechanisms of all types of flame retardants were examined, leading to proposals of lignin development direction as bio-based flame retardants. The review revealed that among the four types of flame retardants, lignin-based composite flame retardants and chemically modified lignin flame retardants have the best flame retardant properties, and the combination of lignin with other materials and structural modification of lignin will be the focus of future research.