塑料科技2023，Vol.51Issue(12)：17-22,6.DOI:10.15925/j.cnki.issn1005-3360.2023.12.004
聚磷酸铵改性酚醛泡沫阻燃及耐热性能研究
Study on Flame Retardancy and Heat Resistance of Ammonium Polyphosphate Modified Phenolic Foam
郑秋雨 1王金玉 1齐宇萱 1张岩2
作者信息
- 1. 沈阳航空航天大学安全工程学院,辽宁 沈阳 110136
- 2. 沈阳市消防救援支队,辽宁 沈阳 110013
- 折叠
摘要
Abstract
Phenolic resin was synthesized from phenol and formaldehyde,and modified phenolic foam(PF)was prepared using a low temperature molding foaming method with additives and ammonium polyphosphate(APP).The effects of different additions of APP on the combustion performance and thermal stability of PF were analyzed by a cone calorimeter,smoke density,and thermogravimetric analysis.The results show that the addition of APP to PF can improve its flame retardancy and heat resistance.The peak heat release rate(PHRR)and total heat release(THR)decrease with the increase of APP content at a heat radiation intensity of 60 kW/m2.When the addition amount of APP is 20%,the PHRR of the modified PF decreases from 90.44 kW/m2 to 11.92 kW/m2.Under both flameless and flame conditions,the smoke density of modified PF increases with the addition of APP,and the transmittance decreases.When the heating rate is 5℃/min,the pyrolysis temperature of modified PF gradually increases with the increase of APP content.However,when the addition amount of APP is low(≤5%),the pyrolysis characteristics of modified PF at different heating rates are not significantly different from those of pure PF.When the heating rate is≥30℃/min,the residual carbon formed by the pyrolysis products of APP and PF does not pyrolyze at 800℃.When the addition amount of APP is 10%～15%,the modified PF has good flame retardancy and fire resistance.关键词
酚醛泡沫/聚磷酸铵/热稳定性/燃烧性能Key words
Phenolic foam/Ammonium polyphosphate/Thermal stability/Combustion performance分类
化学化工引用本文复制引用
郑秋雨,王金玉,齐宇萱,张岩..聚磷酸铵改性酚醛泡沫阻燃及耐热性能研究[J].塑料科技,2023,51(12):17-22,6.
