研究了陶瓷纤维过渡层浆料的不同工艺配方对复合碳化硅过滤膜材料结构的影响,陶瓷粘结剂量对过滤膜的孔隙率、孔径大小和孔径分布的影响,以及陶瓷粘结剂量为15％(质量分数)时,造孔剂量对过滤膜孔隙率的影响.采用流延成型法在多孔碳化硅陶瓷块体上流延制备复合碳化硅陶瓷过滤膜,并用XRD对过滤膜进行物相分析,扫描电镜观察过滤膜的形貌,表面过滤膜的孔隙率和孔径分布则用排水法和泡点法分别测试.结果表明,1300℃烧结3h后的碳化硅过滤膜在2θ=22°时,有SiO2衍射峰生成.当陶瓷纤维过渡层浆料各成分的质量比为:硅酸铝纤维∶莫来石纤维∶羧甲基纤维素钠(CMC)∶蒸馏水=1∶1∶1.565,复合碳化硅陶瓷过滤膜结构最均匀平整.当粘结剂量5％增加到25％时,过滤膜气孔率从46％下降到29％,平均孔径从11.916μm减小至4.017μm;当粘结剂量为15％,造孔剂量从5％增加到25％时,过滤膜气孔率从41％上升到60％.
参考文献
| [1] | Strathmann H .Inorganic membranes synthesis[J].Chemical Engineering Progress,1993,32(03):417-424. |
| [2] | Burggraaf Charpin A J;Cot L .A survey of ceramic membranes for separations in liquid and gaseous media[J].Industrial Ceramics,1991,11(02):84-89. |
| [3] | 琚行松,黄培,徐南平,时钧.非对称管式陶瓷超滤膜毛细过滤成膜过程的数学模拟[J].化工学报,2002(06):595-599. |
| [4] | Bhave R .Fundamentals of inorganic membrane science and technology[J].Journal of Membrane Science,1997,137(01):23-26. |
| [5] | Hendrik;Verwei .Inorganic membranes[J].Current Opinion in Chemical Engineering,2012,2(02):156-162. |
| [6] | 王湛.膜分离技术基础[M].北京:化学工业出版社,2000:7-13. |
| [7] | Jo Y M;Hutchison R B;Raper J A .Characterization of ceramic composite membrane filters for hot gas cleaning[J].Power Technology,1997,91:55-62. |
| [8] | 谢五喜,刘有智,杨毅伟.氧化铝超滤膜的制备及性能研究[J].应用化工,2005(01):45-47. |
| [9] | Xiaozhen Zhang;Daru Fang;Bin Lin .Asymmetric porous cordierite hollow fiber membrane for microfiltration[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2009(1/2):631-638. |
| [10] | Chiao Chien Wei;K.Li .Preparation and Characterization of a Robust and Hydrophobic Ceramic Membrane via an Improved Surface Grafting Technique[J].Industrial & Engineering Chemistry Research,2009(7):3446-3452. |
| [11] | 王耀明,薛友祥,孟宪谦,朱姝,张联盟.孔梯度陶瓷纤维复合膜管的性能研究[J].陶瓷,2006(10):35-38,48. |
| [12] | 李建保;李俊峰;林红 .粉尘过滤用多孔陶瓷的双层非对称表面膜以及制法[P].中国,CN101954246,2011-01-26. |
| [13] | Lin PK.;Tsai DS. .PREPARATION AND ANALYSIS OF A SILICON CARBIDE COMPOSITE MEMBRANE[J].Journal of the American Ceramic Society,1997(2):365-372. |
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%