One method of preparation new membrane materials was presented with putting multi-wall carbon nanotube (MWNT) and carboxylic multi-wall carbon nanotube (c-MWNT) in collodion solution.

• 分别将碳纳米管(MWNT)和羟基化碳纳米管(c-MWNT)均匀分散在火棉胶溶液中，采用流涎法制备出碳纳米管复合膜；