Preparation and characterization of wet spun silk fibroin/poly(vinyl alcohol) blend filaments

作者：Lee Ki Hoon; Baek Doo Hyun; Ki Chang Seok; Park Young Hwan^*

来源：International Journal of Biological Macromolecules, 2007, 41(2): 168-172.

DOI：10.1016/j.ijbiomac.2007.01.011

• silk fibroin
• poly(vinyl alcohol)
• wet spinning

Silk fibroin (SF)/poly(vinyl alcohol) (PVA) blend filaments were prepared by a wet spinning process. Regenerated SF and PVA were dissolved in formic acid and the dope solution exhibited good fiber formation in a methanol coagulation bath. Due to the miscibility of SF/PVA in formic acid, the filament had a smooth surface and dense structure with a circular cross-section. The crystalline structure and thermal properties were varied with different SF/PVA ratios. The mechanical properties of the filament were also controlled by blending PVA with SE Especially, the knot strength of the SF filament, which is a very important suture property, could be significantly improved by blending with PVA.

• 出版日期2007-7-1