Effect of additive on the formation of polyacrylonitrile membrane

Article type: Research Article

Authors: YANG, Sen | LIU, Zhong-zhou

Affiliations: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

Note: [] Corresponding author. E-mail: zzliu01@yahoo.com

Abstract: The effect of additives CaCl_2 and CaCl_2/H_2O on the properties of polyacrylonitrile (PAN) ultrafiltration (UF) membranes prepared by phase inversion process was studied. The dissolving capacity of the casting solution for CaCl_2 was enhanced by the addition of H_2O. The membranes are characterized in terms of the pure water flux and molecular weight cut-off (MWCO). The addition of CaCl_2 or CaCl_2/H_2O to the casting solution increases the resulting membrane permeability.

Keywords: polyacrylonitrile, CaCl[TeX:] _2, H[TeX:] _2O, dissolving capacity, ultrafiltration membranes

Journal: Journal of Environmental Sciences, vol. 16, no. 2, pp. 191-193, 2004