Jiu-mei Xiao, Xin-chun Shang,  and Li-ping Qin, A new route of fabricating porous polyimide membranes, Int. J. Miner. Metall. Mater., 17(2010), No. 6, pp. 782-785. https://doi.org/10.1007/s12613-010-0389-2
Cite this article as:
Jiu-mei Xiao, Xin-chun Shang,  and Li-ping Qin, A new route of fabricating porous polyimide membranes, Int. J. Miner. Metall. Mater., 17(2010), No. 6, pp. 782-785. https://doi.org/10.1007/s12613-010-0389-2

A new route of fabricating porous polyimide membranes

+ Author Affiliations
  • Corresponding author:

    Jiu-mei Xiao    E-mail: jiujiu@sas.ustb.edu.cn

  • Received: 7 February 2010Revised: 20 February 2010Accepted: 5 March 2010
  • A novel experimental route to fabricate porous polyimide membranes (PPMs) with ideal air permeability was reported. The polymer solution layer consisting of the corresponding polyamic acid (PAA), solvent, and dibutyl phthalate (DBP) with a boiling temperature of 340℃ was treated by a simple process. The polymer solution layer was first treated at a lower temperature (about 150℃), then the received solid membrane was further imidized at a higher temperature (about 270℃), and finally, DBP was removed from the membrane at a temperature above its boiling temperature. The final asymmetric polyimide membrane with a dense skin layer was obtained. To improve the air permeability of the polyimide membranes, the polymer solution layer was treated between two substrates. And the PPMs with open pores on both sides are fabricated and the air permeability of the films is improved greatly.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Share Article

    Article Metrics

    Article Views(216) PDF Downloads(6) Cited by()
    Proportional views

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return