Preparation and properties of silk sericin/cellulose cross-linking films

Kunyan Wang,Fangyu Zhan

doi:10.1051/matecconf/201713002004

Abstract

Silk sericin/cellulose cross-linked films were successfully prepared using glutaraldehyde as cross-linkinger. FTIR was applied to characterize the chemical structure of films. Cross-linked silk sericin film was found the peak intensity of FTIR for cross-linked film decreased markedly compared to pure silk sericin, which indicating cross-linking reaction has been occurred. The increasing value of swelling ratio also indicated the cross-linking has been happened. The cross-linking reaction increased the thermal decomposition temperature.

Highlights

Biomaterials such as silk sericin and cellulose are considered as potential substitutes for synthetic polymers
In recent years biomaterials using flexible electronics based on organic field-effect transistors (OFETs) have attracted considerable attention
An weak endothermic peak at 300 oC have appeared for pure silk sericin, representing the thermal decomposition of silk sericin

Summary

Introduction

Biomaterials such as silk sericin and cellulose are considered as potential substitutes for synthetic polymers. Silk sericin delivered from silkworm silk, has been explored as a versatile biomaterial for various fields It has excellent mechanical properties with high elastic modulus, elongation to break, and toughness [1,2,3]. In recent years biomaterials using flexible electronics based on organic field-effect transistors (OFETs) have attracted considerable attention. It have been introduced as gate dielectrics with low dielectric losses and leakage currents as well as sufficiently high dielectric breakdown strength. Glutaraldehyde is an effective synthetic crosslinking agents that can react with amino acids or proteins [8] It has been reported biopolymers using glutaradehyde as crosslinking agents show good mechnical properites.

Materials

Specimens preparation

Characterizations

Results and discussion

Conclusions