Preparation method of high-strength silk fibroin membrane

The invention relates to the technical field of silk fibroin membrane, and discloses a preparation method of a high-strength silk fibroin membrane. The preparation method comprises that silk fibroin is dissolved in a [Bmim]Ac or [Bmim]Cl ionic liquid solvent, the silk fibroin is completely dissolved at a certain temperature and under ultraviolet irradiation to obtain a silk fibroin membrane-makingsolution, the membrane-making solution is dried to form a membrane, and thus the silk fibroin membrane is prepared. The mechanical properties of the silk fibroin membrane prepared by the method are greatly improved, and the application of the silk fibroin membrane in biomedical adjuvants, health care and other fields is expanded. 本发明涉及丝素蛋白膜的技术领域，公开了种高强度丝素蛋白膜的制备方法。该制备方法将丝素蛋白溶于[Bmim]Ac或[Bmim]Cl离子液体溶剂中，丝素蛋白在定的温度和紫外光照射下完全溶解得到丝素蛋白制膜液，制膜液干燥成膜，制得丝素蛋白膜。该方法制备的丝素蛋白膜的机械力学性能得到了很大程度的提高，扩大了丝素蛋白膜在生物医药辅料、保健等领域的应用。