Method for preparing organic and inorganic nanometer assorted fibre
A hybrid fiber, inorganic nanotechnology, applied in chemical instruments and methods, medical preparations with non-active ingredients, inorganic chemistry, etc. Effect
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Embodiment 1
[0030] Preparation of kaolin-polyacrylonitrile mixed spinning solution:
[0031] The fiber spinning dope is prepared according to the following steps: 2g of kaolin is dissolved in 100mL of dimethylacetamide (DMAc) in a water bath at 60°C; then 9g of polyacrylonitrile PAN fine powder is added therein, stirred at 250rpm Swell in a water bath at 60°C for 24 hours; cool to room temperature.
Embodiment 2
[0033] Preparation of kaolin / polyacrylonitrile composite hybrid nanofiber mat:
[0034] Pour the spinning solution prepared in Example 1 into the solution reservoir (5mL syringe), use the flattened No. 6 injection needle as the capillary for spraying thin streams, connect the positive pole of the high-voltage power supply, and use the aluminum foil with the glass slide The fiber receiving plate is connected to the negative electrode. After 10 minutes, ordinary aluminum foil is used as the fiber receiving plate. The amount of solution sprayed is controlled by a micro-injection pump. Other conditions are as follows: the flow rate is 1.0mL·h -1 , the distance between the receiving plate and the spinneret is 15cm, the voltage is 15kV, the ambient temperature is 16°C, and the ambient humidity is 60%. figure 1 In order to improve the high-voltage electrospinning process diagram, 1 is a high-voltage generator, 2 is a syringe pump, 3 is a flat collector, 4 is a magnetic stirrer, and 5...
Embodiment 3
[0037] Preparation of bentonite / polyacrylonitrile composite hybrid nanofiber mat:
[0038] Dissolve 2g of bentonite in 100mL of dimethylacetamide (DMAc) in a 60°C water bath; then add 9g of polyacrylonitrile PAN fine powder into it, stir at 250rpm and swell in a 60°C water bath for 24 hours; cool to room temperature.
[0039] Pour the above-mentioned spinning solution into the solution reservoir (5mL syringe), use the flattened No. 6 injection needle as the capillary for jetting fine flow, connect the positive electrode of the high-voltage power supply, and use ordinary aluminum foil as the fiber receiving plate, and the amount of solution ejection varies from micro to Syringe pump control, other conditions are as follows: the flow rate is 1.0mL h -1 , the distance between the receiving plate and the spinneret is 15cm, the voltage is 15kV, the ambient temperature is 17°C, and the ambient humidity is 55%.
[0040] After the electrospinning is completed, the fiber mat is remov...
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