Preparation of collagen peptide/pullulan blended nanofiber membrane by electrospinning
Collagen peptide(COP)and pullulan(PUL)are blended to prepare nanofiber membrane by electrospinning with water as the sole solvent,and the effect of different collagen peptide addition amounts on the spinning effect is studied.The effects of different COP/PUL ratios on the properties of spinning solution are analyzed,and Scanning electron microscopy(SEM)and Fourier transform infrared spectroscopy(FTIR)are used to analyze the microscopic morphology of the fiber membrane and the interaction between molecules.The thermal(TG,DSC)and mechanical properties of the fiber membrane are studied by using advanced integrated thermal analysis system and single fiber strength meter respectively.The results show that the COP content has a significant effect on the conductivity of the solution.When the COP/PUL ratio is 60/40,high uniformity nanofibers can be obtained,with an average diameter of 300 nm.The stress and strain values of the fiber membrane are inversely proportional to the COP content.The fitting results show that the intermolecular interaction between COP and PUL is dominated by intermolecular hydrogen bond,and the enthalpy value on the DSC curve of the nanofiber membrane is smaller than that of a single component,and the thermal stability is improved.
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万方数据
维普
