Since its development in the late sixties 20 century, PE heterogeneous ion-exchange membranes reveal Chinese membranes separation technique, start Chinese membranes industry and take a lead in electrodialytic field. The foundation of electrodialyser sea water project in XiSha archipelago, whose outcome is 200 ton per day, accelerate the application of electrodialytic technique . With the increase of PE heterogeneous ion-exchange membranes in so many professions, such as desalination of sea water and bitter water, desalinate condensation of electrolyte solution, treatment of waste water and food, pharmaceuticals, electronics and electric power.
The quality of PE heterogeneous ion-exchange membranes is in line with enterprising standards. (Q/SSOX 3-2003)

Features Dimension
Thickness	Thickness tolerance	Effective area
0.40mm	±0.04mm ( dry condition)	≥800mm*1600mm
Main Physical and Chemical characters
Test Items	Unit	Specification
		Cation membranes	Anion membranes
Water content	%	35～50	30～45
Exchange capacity≥	mol/kg	2.0	1.8
Resistance of membranes surface	Ω·cm2	11	12
Selective penetration≥	%	90	89
Degree of desalination(first time)≥	%	0.2	0.2