知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN102418168A 多孔颗粒掺杂的聚酰亚胺中空纤维膜、其制备方法及应用 无效 - 撤回

多孔颗粒掺杂的聚酰亚胺中空纤维膜、其制备方法及应用
摘要：
本发明提供一种多孔性颗粒掺杂的聚酰亚胺中空纤维膜、其制备方法及应用。本发明所提供的中空纤维膜包括作为基质的聚酰亚胺和作为掺杂的多孔性颗粒；本发明所提供的制备方法为通过干-湿法纺制得到中空纤维膜坯，再经过热亚胺化得到多孔性颗粒掺杂的聚酰亚胺中空纤维膜；本发明所提供的中空纤维膜应用在气体分离中。本发明的中空纤维膜综合了有机膜和无机膜的优点，不仅具有良好的热稳定性、化学稳定性及机械强度，且提高了气体的透过选择性以及透过速率，提高了气体的分离效果。
摘要（英）：

The invention provides a porous-particle-doped polyimide hollow fibrous membrane, a preparation method thereof, and an application thereof. The hollow fibrous membrane provided by the invention comprises polyimide as a substrate and porous particles as adulterants. The preparation method provided by the invention comprises steps that: a hollow fibrous membrane green body is prepared through dry-wet spinning; and the porous-particle-doped polyimide hollow fibrous membrane is prepared through thermal imidization. The hollow fibrous membrane provided by the invention is applied in gas separation. Advantages of organic and inorganic membranes are combined in the hollow fibrous membrane provided by the invention. The hollow fibrous membrane has good thermal stability, good chemical stability, good mechanical strength, improved gas permeation selectivity, improved gas permeation speed, and improves gas separation effect.

0/0