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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and characterization of dense cellulose film for membrane application
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Preparation and characterization of dense cellulose film for membrane application

机译：膜用致密纤维素膜的制备与表征

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摘要

Regenerated cellulose films were prepared with environmentally friendly process by utilized N-methylmorpholine-N-oxide (NMMO)-Cellulose system. To prepare a dense cellulose film for membrane application, some parameter process which influence porous forming such as cellulose DP, cellulose concentration, addition NMMO in coagulation bath, coagulation bath temperature, and drying condition were investigated. We resumed that the porosity and pore size of cellulose membrane decrease with lower cellulose DP, higher cellulose concentration, addition of NMMO in coagulation bath, applying room temperature in coagulation bath and drying, and applying vacuum on drying process resulted in membranes with porosity in range of 24-41% and pore size 13.4-20.2 nm. The main factor for controlling porosity and pore size of dense cellulose membrane was coagulation process condition especially addition of NMMO into coagulation bath.
机译：利用N-甲基吗啉-N-氧化物（NMMO）-纤维素系统，通过环保工艺制备了再生纤维素膜。为了制备用于膜的致密纤维素膜，研究了影响多孔形成的一些参数过程，例如纤维素DP，纤维素浓度，在凝结浴中添加NMMO，凝结浴温度和干燥条件。我们恢复到，纤维素膜的孔隙率和孔径随着纤维素DP的降低，纤维素浓度的增加，凝结浴中NMMO的添加，凝结浴中的室温施加和干燥，以及在干燥过程中施加真空而产生的孔隙率在一定范围内降低粒径为24-41％，孔径为13.4-20.2 nm。控制致密纤维素膜的孔隙率和孔径的主要因素是混凝工艺条件，尤其是在混凝浴中加入NMMO。

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