Durable flame-retardant,smoke-suppressant,and thermal-insulating biomass polyurethane foam enabled by a green bio-based system  

作　　者：Xue-Lian Chen Fu-Rong Zeng Wen-Xiong Li Lin Zhang Cong Deng Yi Tan Ming-Jun Chen Sheng-Chao Huang Bo-Wen Liu Yu-Zhong Wang Hai-Bo Zhao 

机构地区：[1]The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials(MoE),National Engineering Laboratory of Eco-Friendly Polymeric Materials(Sichuan),College of Chemistry,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610064,China [2]School of Science,Xihua University,Chengdu 610039,China [3]Hubei Three Gorges Laboratory,Yichang 443199,China

出　　处：《Journal of Materials Science & Technology》2023年第31期179-188,共10页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22175123,52122302,and 51991351);the 111 Project(No.B20001);Fundamental Research Funds for the Central Universities,and Open and Innovative Fund of Hubei Three Gorges Laboratory(Nos.2022LF2021 and SC213011).

摘　　要：Bio-based polyurethane foam has attracted increasing attentions due to eco-friendliness and fossil feedstock issues.However,the inherent flammability limits its application in different fields.Herein,we demonstrate a green bio-based flame-retardant system to fabricate polyurethane foam composite with durable flame retardancy,smoke suppression,and thermal insulation property.In this system,the green bio-based polyol(VED)with good reactivity and compatibility plays a role of flame retardant and EG acts as a synergistic filler.As a result,the LOI value of foam composite increased to 30.5 vol.%and it achieved a V-0 rating in the UL-94 vertical burning test.Additionally,the peak heat release rate(pHRR)and the total smoke production(TSP)decreased by 66.1%and 63.4%,respectively.Furthermore,the foam composite maintained durable flame retardancy after accelerated thermal aging test,whose thermal-insulating property was maintained even after being treated in high-humidity environment with 85%R.H.for a week.This work provides a facile strategy for durable flame retardancy and long-term thermal insulation performance,and creates opportunities for the practical applications of bio-based foam composites.

关 键 词：Biomass polyurethane foam composite Green bio-based system Durable flame retardancy Smoke suppression Long-term thermal insulation 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]