Premium
Extrusion of microcellular polysulfone using chemical blowing agents
Author(s) -
Huang Q.,
Klötzer R.,
Seibig B.,
Paul D.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980829)69:9<1753::aid-app9>3.0.co;2-a
Subject(s) - polysulfone , blowing agent , extrusion , materials science , scanning electron microscope , microporous material , composite material , membrane , chemical engineering , polymer , polymer science , chemistry , polyurethane , engineering , biochemistry
Microporous polysulfone hollow fibers were developed with the help of chemical blowing agents by means of extrusion. Two chemical blowing agents, azodicarbonamide and 5‐phenyltetrazol, were selected, and the foam morphology dependent on the concentration of blowing agent was examined by scanning electron micrograph. By means of changing the processing parameters, e.g., temperature and screw speed, the structures of the foam, usable as membrane, can be controlled. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 69: 1753–1760, 1998