An efficient and mild recycling of waste melamine formaldehyde foams by alkaline hydrolysis

作     者：Shaodi Wu Ning Zhang Chizhou Wang Xianglin Hou Jie Zhao Shiyu Jia Jiancheng Zhao Xiaojing Cui Haibo Jin Tiansheng Deng Shaodi Wu;Ning Zhang;Chizhou Wang;Xianglin Hou;Jie Zhao;Shiyu Jia;Jiancheng Zhao;Xiaojing Cui;Haibo Jin;Tiansheng Deng

作者机构：Shanxi Engineering Research Center of BiorefineryInstitute of Coal ChemistryChinese Academy of Sciences27 South Taoyuan RoadTaiyuan030001China Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049China Department of Chemistry and Chemical EngineeringTaiyuan Institute of TechnologyTaiyuanShanxi030008China Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology/College of New Materials and Chemical EngineeringBeijing Institute of Petrochemical TechnologyBeijing102617China 

出 版 物：《Green Energy & Environment》 (绿色能源与环境（英文版）)

年 卷 期：2024年第9卷第5期

页      面：919-926页

核心收录：

学科分类：0820[工学-石油与天然气工程] 081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(No.21774139) China,Key Research and Development Program of Shanxi Province,China(No,202102040201009) special fund of Beijing Key Laboratory of Clean Fuels and Efficient Catalytic Emission Reduction Technology and the Fund for Shanxi“1331 Project”.Thanks to Ningbo Kejiang Culture Sci.&Tech.Development Co.,Ltd.for the help in schematic drawing 

主　　题：Melamine formaldehyde foam Degradation Alkaline hydrolysis Recycling 

摘      要：Melamine formaldehyde foam(MFF)generates many poisonous chemicals through the traditional recycling methods for organic resin ***,a high MFF degradation ratio of ca.97 wt.%was achieved under the mild conditions(160℃)in a NaOH–H2O system with ammelide and ammeline as the main degradation *** alkaline solvent had an obvious corrosion effect for MFF,as indicated by scanning electron microscopy(SEM).The reaction process and products distribution were studied by Fourier-transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS),and ^(13)C nuclear magnetic resonance(NMR).Besides,the MFF degradation products that have the similar chemical structures and bonding performances to those of melamine can be directly used as the raw material for synthesis of melamine urea-formaldehyde resins(MUFs).Moreover,the degradation system demonstrated here showed the high degradation efficiency after reusing for 7 *** degradation process generated few harmful pollutants and no pre-or post-treatments were required,which proves its feasibility in the safe removal or recovery of waste MFF.