新型α-纤维素膜制备与性能研究  

PREPARATION OF NOVEL α-CELLULOSE MEMBRANES AND STUDIES ON THEIR PERFORMANCES

作　　者：吴江[1] 曹义鸣[1] 袁权[1] 

机构地区：[1]中国科学院大连化学物理研究所,大连116023

出　　处：《高分子学报》2002年第4期520-524,共5页Acta Polymerica Sinica

摘　　要：以N 甲基氧化吗啉为溶剂制备了α 纤维素膜并对其机械性能、液体渗透性能以及耐酸、碱性能进行了考察 .α 纤维素膜机械强度达 133 3MPa ,比其他方法制备的纤维素膜高 30 %～ 6 0 % .α 纤维素膜数对牛血清蛋白的截留率达到 98% ,在pH1至pH9范围内液体渗透流量保持稳定 .文章通过与其他纤维素膜比较 。Novel α cellulose membranes were prepared by using amine oxides as solvent.The mechanical performance,liquid permeation rates and the chemical resistance of the membranes were investigated.The tensile strength of the α cellulose membranes can be up to 133 3?Mpa and 30%～60% stronger than the cellulose membranes prepared from other methods.The retentate ratio of bovine serum albumin of the α cellulose membranes can be up to 98%,and the liquid flux of the membranes can keep constant in a rather large pH range from pH1 to pH9.The effect of membrane preparation process on the performances of α cellulose membrane was also revealed by comparatively studying the performances of other cellulose membranes which using different methods prepared.

关 键 词：α-纤维素膜 N-甲基氧化吗啉 机械性能 化学稳定性 结构 

分 类 号：O636[理学—高分子化学]