Abstract:
:Regenerated silk fibroin (RSF) fibers were obtained by extruding a concentrated aqueous silk fibroin solution into an ammonium sulfate coagulation bath. A custom-made simplified industrial-type wet-spinning device with continuous mechanical postdraw was used. The effect of dope concentration, coagulation bath, extrusion rate, and postdraw treatment on the morphology of RSF fiber was examined. The results showed that although RSF fiber could be formed with dope concentration between 13 and 19% (w/w), the ones spun from 15% RSF solution showed the most regular morphology being dense and homogeneous in cross-section with a smooth surface and a uniform cylindrical shape. Though it had little effect on morphology, postdraw treatment especially under steam, significantly improved the mechanical properties of the RSF fibers.
journal_name
Biomacromoleculesjournal_title
Biomacromoleculesauthors
Yan J,Zhou G,Knight DP,Shao Z,Chen Xdoi
10.1021/bm900840hsubject
Has Abstractpub_date
2010-01-11 00:00:00pages
1-5issue
1eissn
1525-7797issn
1526-4602journal_volume
11pub_type
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