摘要
采用有机泡沫浸渍法制备细孔径氧化铝基泡沫陶瓷过滤器。研究了有机泡沫载体的表面活化处理对氧化铝基泡沫陶瓷过滤器性能的影响。结果表明:羧甲基纤维素钠(CMC)、木质素磺酸钙、聚乙烯亚胺(PEI)三种表面活性剂对泡沫陶瓷性能的影响程度由大到小依次为CMC>PEI>木质素。当取活化剂CMC的浓度为1.5%时,制备出的泡沫陶瓷性能最佳,其容重、抗压强度和孔隙率可分别达到0.49g.cm-3、2.40MPa、83%。
Al2O3 foam ceramics filter with fine-pores was prepared by polymeric sponge impregnation process.The effects of surface modification of polyurethane sponges on the properties of Al2O3 foam ceramics were studied.Surface modification of polyurethane sponges was carried out using suitable concentrations of sodium carboxymethylcellulose（CMC）,calcium lignosulphonate and polyethyleneimine（PEI）.The results show that the influence degrees of the three kinds of surfactant on the properties of foam ceramics were in the sequence of CMCPEIcalcium lignosulphonate.When the concentration of CMC is 1.5%,the best performance of foam ceramics is obtained.The bulk density,compressive strength and porosity of foam ceramics filter are respectively 0.49g.cm-3,2.40MPa and 82.5%.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2010年第6期23-24,38,共3页
China Ceramics
基金
河南省科技攻关重点项目
编号:092102310262
河南省科技创新人才计划项目
编号:104100510005
河南省高校科技创新人才支持计划资助项目
编号:2009HASTIT023
关键词
泡沫陶瓷
表面处理
气孔率
性能
foam ceramics
Surface modification
porosity
properties
