亲水化改性生物载体聚氨酯泡沫的研究  

Study on hydrophilic modified biocarrier polyurethane foam

作　　者：郑凯 张子贤 李晓燕 武福平[1,2] 周添红 ZHENG Kai;ZHANG Zi-xian;LI Xiao-yan;WU Fu-ping;ZHOU Tian-hong(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Key Laboratory of Yellow River Water Environment in Gansu Province,Lanzhou 730070,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]甘肃省黄河水环境重点实验室,甘肃兰州730070

出　　处：《应用化工》2020年第7期1658-1660,1665,共4页Applied Chemical Industry

基　　金：国家重点研发计划项目(2016YFC0400703);甘肃省重点研发计划(17YF1NA056)。

摘　　要：采用化学氧化加丙烯酸接枝技术对聚氨酯泡沫(PUF)进行亲水化改性,考察了接枝时间、接枝温度以及接枝单体的浓度对亲水化改性的影响,并对改性前后的PUF进行了红外光谱和扫描电镜分析。结果表明,最佳改性条件:接枝温度40℃,接枝时间1.5 h,丙烯酸浓度2.5 mol/L;羟基接枝到了PUF上,有效提高了PUF的亲水性。Polyurethane foam(PUF)has a good application in moving bed biofilm reactor.The hydrophilicity of PUF is of great significance to the improvement of sewage treatment effect of moving bed biofilm reactor.PUF was hydrophilized by chemical oxidation plus acrylic acid grafting technique.The effects of grafting time,grafting temperature and concentration of grafting monomer on hydrophilization modification were investigated.The PUF was analyzed by infrared spectroscopy and scanning electron microscopy.The results showed that the optimum modification conditions were:grafting temperature 40℃,grafting time 1.5 h,acrylic acid concentration 2.5 mol/L;hydroxyl grafted onto PUF,effectively improving the hydrophilicity of PUF.

关 键 词：聚氨酯泡沫 生物载体 亲水化改性 接枝 

分 类 号：TQ316.6[化学工程—高聚物工业] O643.36[理学—物理化学]