塑料科技2025，Vol.53Issue(11)：24-28,5.DOI:10.15925/j.cnki.issn1005-3360.2025.11.005
废旧聚氨酯泡沫降解及其再生材料性能分析
Degradation of Waste Polyurethane Foam and Performance Analysis of Its Recycled Materials
摘要
Abstract
The study employs a mixture of ethylene glycol and diethylene glycol as the binary diol glycolysis agent and the alkali metal hydroxide sodium hydroxide(NaOH)as the metal catalyst to degrade waste polyurethane foam used for thermal insulation and cold preservation.The hydroxyl value,viscosity and infrared spectra of the degradation products are tested.Additionally,the recycled polyurethane foam prepared from the degradation products is analyzed and tested for thermal gravimetric analysis,apparent density,compressive strength,water absorption rate,thermal conductivity and scanning electron microscopy.The results indicate that when the mass ratio of polyurethane to glycol is 1:1,the mass ratio of ethylene glycol to diethylene glycol is 43:57,and the amount of NaOH added is 1.0 g,the degradation product exhibits low viscosity and high hydroxyl value,and its infrared spectral characteristic peaks match those of polyether polyol.The recycled polyurethane foam prepared under these conditions has a favorable microstructure with a robust and intact framework,uniform pore diameter,good compressive strength and water absorption rate.Its thermal insulation performance is excellent and meets the national standard.关键词
聚氨酯/金属催化剂/降解/醇解Key words
Polyurethane/Metal catalyst/Degradation/Alcoholysis分类
化学化工引用本文复制引用
樊安宇,顾晓华,龙璨妍,孙少春..废旧聚氨酯泡沫降解及其再生材料性能分析[J].塑料科技,2025,53(11):24-28,5.基金项目
广西自然科学基金项目(2025GXNSFAA069202) （2025GXNSFAA069202）
桂林市科学技术开发计划项目(20230120-9) （20230120-9）
桂林航空航天学院基金项目(2024BJXM018) （2024BJXM018）
广西特种工程装备与控制重点实验室(SEEC24ZR01) （SEEC24ZR01）
广西高校能源产业绿色升级关键技术工程研究中心(202410-60) （202410-60）
