Effect of degumming methods on structural characteristics and properties of regenerated silk

In the present study, the effects of different degumming methods on the structural characteristics and properties of regenerated silk fibroin were examined

Hyun Ju Kim

2017

Scholarcy highlights

  • In the present study, the effects of different degumming methods on the structural characteristics and properties of regenerated silk fibroin were examined
  • The crystallinity index of the degummed silk increased with the degumming ratio
  • The crystallinity index at any given degumming ratio differed depending on the degumming method
  • The soda method and the soap/soda method using sodium carbonate resulted in a higher crystallinity index than the other methods The degumming method strongly affects the molecular weight and solution viscosity of the regenerated SF
  • The turbidity of a silk formic acid solution decreased as a result of increasing the degumming ratio and was a minimum at a degumming ratio of around 26%
  • The mechanical properties of a regenerated SF film were strongly affected by the degumming method and the trend in the strength and elongation with the various degumming methods was the same as that of the MW and viscosity of the regenerated SF

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