- 作者: Lin, Chen-Chong; Lee, The-Shing
- 作者服務機構: Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.
- 中文摘要: --
- 英文摘要:
The purpose of this paper is to study the water and salt permeabilities
of HSPAN/PVA composite membranes. HSPAN was prepared by grafting poly-
acrylonilrile on starch followed by alkali hydrolysis of the copolymer. For the
purpose of comparison, both PVA and CMS/PVA membranes were also tested.
The membranes showed maximun per cent salt rejection when the blending ratio
of HSPAN to PVA are 10:90. The increase in the degree of formalization also
increases the salt rejection of the membranes.
The mechanical strength of the membranes will increase as the degree of
formalization increases and decrease as the blending ratio of HSPAN to PVA in-
creases.
If the solute in the aqueous solution is sodium glutamate in place of sodium
chloride, the salt rejection will increase because the large glutamate ions are
harder than the chloride ions to diffuse through the membranes. - 中文關鍵字: --
- 英文關鍵字: --