在自制的片状多孔陶瓷载体上 ,通过多次原位水热晶化合成出NaA型分子筛膜 .通过扫描电子显微镜观测 ,发现在某些区域 ,小颗粒的NaA型分子筛以非常紧密的形式畸晶孪生在一起 ,其致密度远好于由分子筛晶粒松散无规律堆积而形成的膜排列方式 .此类膜生长形式可能是获取致密无缺陷型分子筛膜的一种途径 .单组分及双组分气体渗透测试结果表明 ,在所合成的分子筛膜上 ,晶粒间隙孔可能是主要的膜扩散通道 ,可凝聚气体异丁烷因发生毛细管凝聚现象而具有高于氢及甲烷的真实选择透过性 NaA zeolite membranes were synthesized by hydrothermal crystallization in situ on a self-made plate-like porous ceramic support.Using scanning electron microscopy, it was found that in some areas small NaA zeolite particles were deformed in a very tight form Crystal twin together, its density is much better than the molecular sieve loose accumulation of irregular formed by the film arrangement of such film growth patterns may be dense and defect-free zeolite membrane a way to single-component and bis Gas permeation test results show that the intergranular pores may be the main channel of membrane diffusion on the synthesized zeolite membrane. The condensable gas isobutane is more selective than hydrogen and methane due to capillary condensation Passive