用溶胶-凝胶法制备MgAl2O4陶瓷复合膜,该膜材在其熔点温度(2135℃)前无任何相变,具有很高的热稳定性.在制膜过程中,先合成铝镁双醇盐,然后走颗粒溶胶-凝胶路线,以α-Al2O3陶瓷膜为载体,制备尖晶石复合陶瓷膜,膜的最终烧结温度为1173.15K.通过实验,优化了过程参数,如pH值,温度,溶胶的组成.膜平均孔径为12nm,BSA(牛血清白蛋白)的截留率达96%以上,纯水的渗透率为5～13g/(cm2·min·MPa).
参考文献
| [1] | Chang C H;Gopalan R;Lin Y S .A comparative study on thermal and hydro-thermal stability of alumina,titania and zirconia membranes[J].Journal of Membrane Science,1994,91:27-45. |
| [2] | Pflanz K B;Riedel K B;Chmiel H .Preparartion of spinel ultrafiltration membrane[J].Advanced Materials,1992,4:662-665. |
| [3] | Iler R H.The chemistry of silica:Solubility,polymerization,colloid and surface properties and biochemistry[M].New York:Wiley,1979 |
| [4] | Saβmannshausen J;Reidel R;Pflanz K B et al.First crystal structure determination of an aluminium magnesium alkoxide[J].Zeitschrift für Naturforschung Section B-A Journal of Chemical Sciences,1993,48B:7-10. |
| [5] | Rai J;Mehrotra .R C.Methanollysis of magnesium aluminium biometallic alkoxides[J].Journal of Non-Crystalline Solids,1993,152:118-126. |
| [6] | Brinker C J;Scherer G W.Sol-gel science:The physics and chemistry of sol-gel processing[M].New York:Academic Press Inc,1990:235-250. |
| [7] | Bhave R R.Inorganic membranes synthesis,characteristics and applications[M].New York:Van Nostrand Reinhold,1991:64,109-159. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%