两层结构Al2O3陶瓷平板膜制备及缺陷分析  

Preparation and Defect Analysis of Two-Layer Al2O3 Flat-Sheet Ceramic Membranes

作　　者：陈大明[1] 赵世凯[1] 薛友祥[1] 宋涛[1] 徐传伟[1] 李小勇[1] 唐钰栋 贾同军 CHEN Da-Ming;ZHAO Shi-Kai;XUE You-Xiang;SONG Tao;XU Chuan-Wei;LI Xiao-Yong;TANG Yu-Dong;JIA Tong-Jun(Shandong Industrial Ceramics Research&Design Institute Co.,Ltd,Zibo 255000,China)

机构地区：[1]山东工业陶瓷研究设计院有限公司,山东淄博255000

出　　处：《现代技术陶瓷》2020年第5期317-322,共6页Advanced Ceramics

基　　金：2017年泰山产业领军人才计划。

摘　　要：利用喷涂法成功制备出支撑体层+分离膜层两层结构的氧化铝陶瓷平板膜,研究了分散剂对氧化铝膜层浆料的影响。采用扫描电镜对不同烧结温度下制得的不同厚度膜层进行观察,利用孔径分析仪对膜层孔径进行测试,并测试了纯水通量。研究表明:PAA-NH4比PAA有更优的分散效果,其合适的加入量为0.5wt%;两层结构的陶瓷平板膜合理的烧结温度为1250°C,合理的膜层厚度为20μm。The two-layered(support layer and separation layer)Al2O3 flat-sheet ceramic membranes were successfully prepared by spray-coating.The influence of dispersant on the slurry of alumina was studied.The surfaces of the membranes with different thicknesses and sintered at different temperatures were observed with SEM.The pore sizes of the membranes were measured with pore-size distribution analyzer and the pure water flux was also measured.It was shown that PAA-NH4 has a better dispersing effect than PAA.The appropriate amount of PAA-NH4 is 0.5 wt%.The optimal sintering temperature of the flat-sheet ceramic membrane is 1250°C,and the optimal membrane thickness is 20μm.

关 键 词：陶瓷平板膜 多孔陶瓷 氧化铝陶瓷 

分 类 号：TQ174[化学工程—陶瓷工业]