Abstract: Choline-thioglycolate is a kind of reducing deep eutectic solvent (DES), which has a very considerable application prospect in the dissolution, regeneration and modification of keratin materials. In this study, choline-thioglycolate was used to dissolve the wool keratin and PVA in one-pot and the composite membrane was fabricated. The surface morphology, crystallinity, thermal stability, mechanical property and secondary structure of the composite membrane were investigated by test methods such as SEM, XRD, TG and FTIR. The results indicated that wool keratin and PVA were evenly distributed in the composite membrane. With the addition of PVA, the crystallinity, tensile property and thermal property of composite membrane gradually improved. Meanwhile, the secondary structure of the composite membrane was analyzed by the method of peak fitting, and the result showed that with the induction of PVA, α-helix and random coil structure in the composite membrane reduced, β-sheet and β-turn increased compared with the raw wool keratin, which contributes to increase the crystallinity and the mechanical properties of the material.
朱逸军, 刘子同, 袁久刚, 王强, 王平. 以巯基乙酸胆碱为共溶剂的角蛋白/PVA复合膜的一浴法制备及性能[J]. 材料导报, 2020, 34(14): 14187-14190.
ZHU Yijun, LIU Zitong, YUAN Jiugang, WANG Qiang, WANG Ping. One-pot Preparation and Properties of the Wool Keratin/PVA Composite Membranes with Choline-thioglycolate as Co-solvent. Materials Reports, 2020, 34(14): 14187-14190.
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