STRUCTURAL AND SURFACE-PROPERTIES OF POLYURETHANE MEMBRANES OF DIFFERENT POROSITIES

PULAT M., SENVAR C.

POLYMER TESTING, cilt.14, sa.2, ss.115-120, 1995 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 2
  • Basım Tarihi: 1995
  • Doi Numarası: 10.1016/0142-9418(95)93191-3
  • Dergi Adı: POLYMER TESTING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.115-120
  • Gazi Üniversitesi Adresli: Evet

Özet

The structural and surface properties of polyurethane (PU) membranes prepared by a classical solvent-casting method were tested. A number of casting solutions of Pellethane(R), in dimethylformamide, dioxan, tetrahydrofuran and their mixtures, were used to obtain a series of PU membranes of different porosities. Structural properties of the membranes were investigated by scanning electron microscopy and surface free energies were calculated from contact-angle measurements. By changing the composition and type of casting solution, different physical, chemical and surface characteristics were obtained.