609 126 Preparation of filter membrane from cellulose T. Zhao, W. Li, Y. Cheng, and C. Ma Sino-Danish College, University of Chinese Academy of Sciences INTRODUCTION Petro-based synthetic film is the major source of the world film production, however, considering the limited fossil fuel, it has to be replaced by film originated from renewable sources. Cellulosic film with abundant sources was regarded as a suitable alternative, however the water and air pollution generated during current manufacturing process darkened its application prospects. All above, this project is aimed at producing cellulosic film in an environmental friendly way by using ionic liquids. Material and methods DBNHOAc was prepared by neutralization of 1, 5-diazabicyclo 4.3.0non-5-ene, DBN, with acetic acid. Cellulose was dissolved in DBNHOAc at 70 ℃ in a water bath to obtain a uniform slurry, a further dissolution of which was conducted at 80℃ for 90 min at 10 rpm under reduced pressure. Undissolved particles or impurities were then removed by hydraulic pressure filtration. The very viscous dope obtained was then send to flat membrane casting equipment to get film and stored at cold temperature for solidification. The regeneration of IL was easily achieved by putting the membrane in water and dissolve IL in it. Results A sample of cellulose membrane made from cellulose will be obtained and provide a macroscopic characterization of the cellulose films. Scanning electron microscopy (SEM) imaging of the cellulose films will be performed, this can give a characterization of the microstructure of cellulose films. Mechanical properties, primary air gap, bath temperature and drawing speed, of cellulose films will be tested. The filtering quality of the cellulose films will be tested and compare with filter paper made from traditional raw material. Results Life Cycle Check (LCC) will be performed and demonstrate the positive environmental or energy impact of our project. LCA Materials Production Use Disposal Materials Energy Chemistry Other Table 1 Generic LCC Table PRODUCTS AND SUSTAINABILITY LAPTOP IDEA MASTER LEVEL COURSE/PROJECT
Grøn Dyst 2016
To see the actual publication please follow the link above