醋酸纤维素非对称膜的制备及对酚类污染物的分离研究

Study on Preparation of Cellulose Acetate Asymmetrical Membranes and Application to Separate Hydroxybenzene Compounds

以醋酸纤维素为材料制备了非对称膜,将所制备的膜应用于酚类化合物(苯酚、对甲基苯酚、对苯二酚)的分离,探讨了浓度、溶剂挥发时间对膜分离性能的影响.结果表明:当质量浓度为20%、溶剂挥发时间为60 s时,所制备的膜对酚类化合物有较好的分离效果.

separated Asymmetrical membranes of cellulose acetate were prepared. Three hydroxybenzene compounds were through were investigated concentration was the membranes. Effects of different factors including concentration, volatilization time of solvent on membrane performance. The results showed that membranes had better separation effects when 20%, and volatilization time of solvent was 60s.