摘要
用戊二醛与对苯二甲醛对聚乙烯醇（ＰＶＡ） 进行交联制得渗透汽化膜， 用于水－ 乙醇渗透汽化分离。ＤＳＣ测试结果表明， 对苯二甲醛与聚乙烯醇之间的交联反应进行得不够充分。溶胀度测试及渗透汽化分离水－ 乙醇混合液的结果表明， 对苯二甲醛交联聚乙烯醇膜与戊二醛交联聚乙烯醇膜相比， 其溶胀度及透量较高，
Pervaporation separation of water ethanol mixture through the PVA membrane was crosslinked by pentanedial and p phenylene dimethyl aldehyde,respectively.DSC determination indicated that p phenylene dimethyl aldehyde didn't completely react with PVA.The determination of swelling degree and pervaporation separation of water ethanol mixture indicated that the PVA membrane crosslinked by p phenylene dimethyl aldehyde had higher swelling degree and flux and lower separation factor than the PVA membrane crosslinked by pentanedial.
出处
《安徽农业大学学报》
CAS
CSCD
1999年第4期499-501,共3页
Journal of Anhui Agricultural University
基金
国家自然科学基金
关键词
聚乙烯醇缩醛膜
渗透汽化
膜分离
Polyvinylacetal membrane Pervaporation Membrane separation
