软质聚氨酯泡沫燃烧特性及参数敏感性
Combustion Characteristics and Parameter Sensitivity of Flexible Polyurethane Foam
黄梦真 1朱虹 1刘乃安 1谢小冬 1马超 1张首蕤1
作者信息
- 1. 中国科学技术大学火灾科学国家重点实验室,合肥 230026
- 折叠
摘要
本研究基于火焰蔓延量热仪(FPA),在不同辐射热流及样品厚度条件下,开展软质聚氨酯泡沫(FPUF)燃烧特性实验研究.结果表明,FPUF燃烧可分为三个阶段:阶段一主要为FPUF热解与甲苯二异氰酸酯(TDI)燃烧,阶段二主要为多元醇燃烧,阶段三主要为焦炭氧化.基于Box-Behnken设计方法建立质量响应模型,方差分析结果表明,模型对单个参数敏感性为:样品底面温度＞辐射热流＞样品厚度;多个参数敏感性为:样品底面温度×样品厚度＞样品底面温度的平方＞样品厚度的平方.
Abstract
The flexible polyurethane foam(FPUF)combustion is studied by fire propagation ap-paratus(FPA)with different radiant heat fluxes and sample thicknesses.The results show that FPUF combustion can be divided into three stages:the first stage is mainly FPUF pyrolysis and toluene diisocyanate(TDI)combustion,the second stage mainly polyol combustion,and the third stage mainly char oxidation.A mass response model is established by the Box-Behnken design method.The results of variance analysis show that the sensitivity of the mass model to the single parameter is:sample bottom temperature＞radiant heat flux＞sample thickness;and the sensitivity of the mass model to the combined effects of multiple parameters is:sample bot-tom temperature x sample thickness＞sample bottom temperature squared＞sample thickness squared.
关键词
软质聚氨酯泡沫/热解/燃烧/敏感性分析/火焰蔓延量热仪Key words
flexible polyurethane foam/pyrolysis/combustion/sensitivity analysis/fire propagation apparatus引用本文复制引用
基金项目
国家自然科学基金(51936011)
国家自然科学基金(41961144012)
中国博士后科学基金(2021M703083)
国家重点研发计划(2022YEC3003000)
出版年
2024
NETL
NSTL
万方数据