塑料科技2025，Vol.53Issue(8)：18-22,5.DOI:10.15925/j.cnki.issn1005-3360.2025.08.004
多元协同阻燃聚醚多元醇合成及其在聚氨酯硬质泡沫中的应用
Preparation of Flame-retardant Polyether Polyols and Their Application in Rigid Polyurethane Foam
摘要
Abstract
Using tris(2-hydroxyethyl)isocyanurate(THEIC),tris(hydroxymethyl)phosphine oxide(THPO)and tribromophenol(TBP)as the nitrogen,phosphorus and halogen sources,respectively,a P/N/Br multi-synergistic flame-retardant polyether polyol was synthesized via a two-step method,and its application in rigid polyurethane foam was investigated.The results show that the flame-retardant product possesses a well-ordered microstructure.With increasing THEIC content,the viscosity of the flame-retardant polyol rises markedly and its reactivity improves in parallel.Compared with polyols containing only a single flame-retardant element,the multi-element synergistic polyol yields foams with significantly higher flame retardancy and a higher onset thermal-decomposition temperature.When the dosage of the flame-retardant polyol in the rigid polyurethane formulation is increased to 40 phr,the limiting oxygen index(LOI)reaches 28.1%and the compressive strength is 150 kPa.The flame retardancy of the rigid foam rises sharply with increasing bromine content in the polyol;when the bromine mass fraction is raised to 43%,the LOI can reach 31.1%,satisfying the requirements for the B1 flame-retardant classification.关键词
阻燃聚醚多元醇/阻燃性能/聚氨酯硬质泡沫/极限氧指数Key words
Flame-retardant polyether polyols/Flame retardancy/Rigid PU Foam/LOI分类
化学化工引用本文复制引用
戈欢,林壮,白维坤,杨健,祝怀英,孙兆任,张云强..多元协同阻燃聚醚多元醇合成及其在聚氨酯硬质泡沫中的应用[J].塑料科技,2025,53(8):18-22,5.基金项目
山东省自然科学基金(ZR2020QB117) （ZR2020QB117）
