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Manufacturing method of the semipermeability asymmetrical type dry cellulose film and the dry virtuous film null which is produced because of this
Manufacturing method of the semipermeability asymmetrical type dry cellulose film and the dry virtuous film null which is produced because of this
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机译:由此制得的半渗透性不对称型干纤维素膜的制造方法和良性干膜的制造方法
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摘要
The method of preparing dried asymmetric cellulose acetate blend membranes through the use of at least one drying agent which is a hydrophobic organic compound, such as polysiloxanes, hydrocarbons, ethers, ketones, chlorohydrocarbons or nitrohydrocarbons. The membranes are dried from their aqueous state by direct evaporation of water. The resulting air dried membranes are suitable for the desalination of water by reverse osmosis, non-aqueous liquid separation, ultrafiltration, pervaporation, and for the separation of various gaseous mixtures into their constituent parts.
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