A high performance composite membrane was prepared under the inspiration of bioadhesion principles for pervaporative dehydration of ***(CS)and polyacrylonitrile(PAN)ultrafiltration membranes were used as the active la...
详细信息
A high performance composite membrane was prepared under the inspiration of bioadhesion principles for pervaporative dehydration of ***(CS)and polyacrylonitrile(PAN)ultrafiltration membranes were used as the active layer and the support layer,*** gum(GG),a natural bioadhesive,was introduced as the intermediate bonding layer to improve the separation performance and stability of the fabricated CS/GG/PAN composite *** contact angle of the GG layer was just between those of the CS layer and the PAN layer,minimizing the difference of hydrophilicity between the active layer and the support *** peeling strength of the composite membrane was significantly enhanced after the introduction of the GG *** effects of preparation conditions and operation conditions including GG concentration,operating temperature and ethanol concentration in feed on the pervaporation performance were *** as-fabricated CS/GG/PAN composite membrane showed the optimum performance with a permeation flux of up to804 g·m-2·h-1and a separation factor higher than ***,the composite membranes exhibited a desirable long-term operational stability.
暂无评论