Пористые мембраны из политетрафторэтилена, полученные методом электроформования с последующим спеканием

Abstract

Polytetrafluoroethylene (PTFE) is one of suitable materials for the purposes of tissue engineering and chemical technology due to its physico-chemical properties and mechanical characteristics. However, conventional fabrication methods of PTFE porous membranes have disadvantages which confine application areas by reason of a insufficient surface-to-volume ratio and poor porosity at small thickness. In the paper the results of using PTFE water suspension with a solution of water-soluble polymer for preparation of porous membranes by electrospinning are reported. The physico-chemical characteristics of membranes were investigated depending on the content of PTFE dispersion in spinning solution. There were found high hydrophobicity of PTFE electrospun membranes. Main reasons of poor mechanical properties of porous membranes at high content of PTFE suspension in spinning solution are discovered.