Polymer electrostatic spinning film, preparation and use in biological detection
An electrospinning and polymer technology, which is applied to the polymer electrospinning film and its preparation, and the post-processing field of polymer electrospinning, can solve the problems of inability to be directly applied, difficult to operate, etc., and achieves low production cost, Low cost and uniform thickness
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Embodiment 1
[0046] Use as attached figure 1 The electrospinning device shown in the electrospinning device adopts the method involved in the present invention to carry out electrospinning, and its flow process is as follows Figure 5As shown, the prepared polycarbonate (PC) electrospun film is as follows figure 2 , 4 shown. Specific steps are as follows:
[0047] a). Prepare a polycarbonate solution for electrospinning, dissolve 20g polycarbonate in 80g chloroform to obtain a 20wt% polycarbonate solution, and simultaneously carry out magnetic stirring for 5-10 hours to prepare a transparent and uniformly dispersed Polymer solution, this solution is subjected to electrospinning, during electrospinning, the prepared polycarbonate spinning solution 1-2 is contained in the spinning tube 1-1, and the spinning solution is pushed through the syringe pump; the spinning nozzle 1-3 is 10cm away from the surface of the receiving aluminum foil 5-2, the spinning nozzle 1-3 is connected to the po...
Embodiment 2
[0053] The polystyrene (PS) electrostatic spinning film is prepared by adopting the method involved in the invention. Specific steps are as follows:
[0054] a). Prepare polystyrene solution for electrospinning, dissolve 14g polystyrene in 86g dimethylformamide (DMF), prepare 14wt% polystyrene solution, and carry out magnetic stirring for 5-10 hours at the same time , and prepare a transparent, uniformly dispersed polymer solution, and electrospin the solution with an applied voltage of 10-30kV for 15 minutes. During the electrospinning process, the polystyrene solution is formed into nanofibers under the action of an electric field, with an average spinning diameter of 200 nm and a film thickness of 15 μm;
[0055] b). Place the fluffy polystyrene spinning film obtained in step a) flatly on the platform, cover the polystyrene spinning film with aluminum foil, and apply a weight on it with a pressure of 600Pa. The pressure was maintained for 5 hours, the flat polystyrene sp...
Embodiment 3
[0060] The polymethyl methacrylate (PMMA) electrostatic spinning film is prepared by adopting the method involved in the invention.
[0061] Specific steps are as follows:
[0062] a). Prepare a polymethyl methacrylate solution for electrospinning, dissolve 10g polymethyl methacrylate in 90g tetrahydrofuran (THF), prepare a 10wt% polymethyl methacrylate solution, and perform magnetic Stir for 5-10 hours to prepare a transparent and uniformly dispersed polymer solution, and electrospin the solution with an applied voltage of 10-30kV for 20 minutes. During the electrospinning process, the polymethyl methacrylate solution is formed into nanofibers under the action of an electric field, with an average spinning diameter of 300 nm and a film thickness of 15 μm;
[0063] b). Place the fluffy polymethyl methacrylate spinning film obtained in step a) flatly on the platform, cover the polymethyl methacrylate spinning film with aluminum foil, and apply a weight on it with a pressure o...
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Abstract
Description
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