Polyacrylonitrile/hydrotalcite composite film as well as preparation method and application thereof
A polyacrylonitrile, composite film technology, applied in the application, clothing, clothing and other directions, can solve the problem of less refrigeration textile materials, and achieve the effect of easy promotion, improved heat dissipation performance, and strong heat dissipation capacity
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[0039]
[0040] Such as figure 1 Shown, the preparation method of polyacrylonitrile / hydrotalcite composite film of the present invention comprises the steps:
[0041] (1), polyacrylonitrile is dissolved in dimethylformamide, obtains polyacrylonitrile solution;
[0042] (2) After stirring the polyacrylonitrile solution and adding hydrotalcite particles, ultrasonic dispersion is carried out to obtain a mixed stock solution;
[0043] (3) The polyacrylonitrile / hydrotalcite composite film is obtained by applying the mixed stock solution through a spin coating process.
[0044] Wherein, in step (2), the stirring speed can be 20-1500rpm, preferably 20rpm; the stirring time can be 1-6h, preferably 2h; the temperature can be 20-25°C, preferably 25°C; the humidity can be It is 25-50%, preferably 25%.
[0045] In step (2), the ultrasonic time can be 0.1-4h, preferably 40min; the ultrasonic frequency can be 12-30KHz, preferably 20KHz.
[0046] In step (2), the content of polyacrylon...
Embodiment 1
[0061] (1) Weigh 9.27g of dimethylformamide, add it into the Erlenmeyer flask, and then add 1.2g of polyacrylonitrile into the Erlenmeyer flask to obtain a polyacrylonitrile solution.
[0062] (2) Mechanically stirring the polyacrylonitrile solution for 2 hours with a stirring paddle at a stirring speed of 20 rpm, keeping room temperature and humidity at 25% during the stirring process. After mechanical stirring, 0.063 g of hydrotalcite particles were added, then stirred for 1 hour, and ultrasonically treated at room temperature for 40 minutes to obtain a mixed stock solution, wherein the ultrasonic frequency was 20KHz and the power was 2.5KW.
[0063] (3), the polyacrylonitrile / hydrotalcite composite film is prepared by spin coating technology, and the schematic diagram of the process is as follows figure 2 As shown, the mixed stock solution is put into the barrel 2, and under the action of the pump 1, the mixed stock solution is injected onto the glass slide 4, and the glas...
Embodiment 2
[0066] (1) Weigh 9.78g of dimethylformamide, add it into the Erlenmeyer flask, and then add 1.2g of polyacrylonitrile into the Erlenmeyer flask to obtain a polyacrylonitrile solution.
[0067] (2) The mixed solution was mechanically stirred for 1.5 hours with a stirring paddle at a stirring speed of 30 rpm, and room temperature was maintained during the stirring process. After mechanical stirring, add 0.133g of hydrotalcite particles, then stir for 2 hours, and ultrasonic treatment at room temperature for 50 minutes to obtain a mixed stock solution, wherein the ultrasonic frequency is 20KHz, and the power is 2.5KW.
[0068] (3), the polyacrylonitrile / hydrotalcite composite film is prepared by spin coating technology, and the schematic diagram of the process is as follows figure 2 As shown, the mixed stock solution is put into the barrel 2, and under the action of the pump 1, the mixed stock solution is injected onto the glass slide 4, and the glass slide 4 is driven to rotate...
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