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生物检测、组织工程支架、过滤薄膜和催化剂载体等领域都需要比表面积较大的高分子薄膜.聚碳酸酯(PC)具有优良的机械性能和生物相容性,是合适的高分子薄膜备选材料.静电纺丝是一种大规模制备微纳米纤维薄膜材料的简单而有效的方法,静电纺丝薄膜具有较大的比表面积.然而,如何控制PC静电纺丝的形貌还很少系统研究.本文主要报道如何制备连续、均一的PC静电纺丝.我们分别将不同种类的表面活性剂(包括阴离子型、两性离子型、非离子型、阳离子型)加入到PC/氯仿溶液中,进行静电纺丝;结果只有在添加阳离子型表面活性剂才能够得到形貌均一的PC静电纺丝.通过分析溶液的黏度、表面张力、电导率与静电纺丝产物形貌的关系,发现添加阳离子型表面活性剂降低PC溶液的黏度是PC静电纺丝成功制备的主要因素,相信PC静电纺丝形貌控制的研究对其他材料的静电纺丝制备有借鉴作用.
Bio-detection, tissue engineering scaffolds, filtration membranes, and catalyst supports all require polymer membranes with large specific surface areas. Polycarbonate (PC) is a suitable polymer membrane alternative with excellent mechanical and biocompatibility Electrospinning is a simple and effective method for large-scale preparation of micro / nanofiber membrane materials, which have large specific surface area.However, there are few systematic studies on how to control the morphology of PC electrospinning This article mainly reports on how to prepare continuous and uniform PC electrospinning.We separately add different kinds of surfactants (including anionic, zwitterionic, nonionic and cationic) to PC / chloroform solution for electrostatic Spinning.The result shows that uniform electrospinning of PC can be obtained only by adding cationic surfactant.By analyzing the relationship between solution viscosity, surface tension, conductivity and morphology of electrospinning product, it is found that adding cationic surface Active agent to reduce the viscosity of the PC solution is the main factor in the successful preparation of PC electrospinning, I believe PC electrospinning morphology control study of other materials static Electrospinning preparation for reference.