The Preparation and Characteristic Research of Keratin Powder Based on TCEP

In this paper, the wool was pretreated by TCEP (Tris (2-carboxyethyl) phosphine) a certain time, and then prepared wool keratin powder by mechanical lapping. The characteristics of the keratin powder carried out by Fourier transform infrared (FTIR) and Differential scanning calorimetry (DSC). From the FTIR analysis, TCEP first role in α-helical structure of wool, making its decline, and then acting on β-sheet. From the DSC analysis, the melting peak temperature of α-crystalline with the time of TCEP effect on wool, presenting the trend of first increased and then drophave. Dissolved the keratin powder in 88% formic acid, then keratin films were maded.The characteristics of the keratin films were measured, the moisture content of keratin film increases with the time of wool treated with TCEP. And the dissolution rate and ultimate strength in line with the change of FTIR and DSC analysis results.