Method for preparing carbon nanotube static conductive coating on surface of EVA thin film
A technology of carbon nanotubes and electrostatic coatings, applied in the direction of conductive coatings, coatings, etc., can solve the problems of difficult control, destruction of carbon tube dispersion state, high cost, etc., achieve lower drying temperature, shorter drying time, and easy operation Effect
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[0013] Example 1:
[0014] 1) Stir 4g of carbon nanotubes, 1.5g of polyethylene glycol dispersant, 3g of PVP binder and 200ml of ethanol for 3-4 hours at room temperature to form a stable ethanolic carbon nanotube suspension.
[0015] 2) The ethanol suspension in step 1) is subjected to high-speed ball milling for 4-5 hours. A planetary ball mill is selected, and the rotation frequency of the ball mill is 30HZ to form an ethanol dispersion.
[0016] 3) The ethanol dispersion in step 2) was sonicated at 25°C for 30min, diluted 4 times, and sprayed directly on the surface of the EVA film, dried at 50°C, to obtain an EVA electrostatic conductive coating. Get resistance 10 7 -10 8 ohm.
Example Embodiment
[0017] Example 2:
[0018] 1) Stir 4g carbon nanotubes, 0.5g polyethylene glycol+0.5g serine dispersant, 3g PVP binder and 200ml 80vt% ethanol solution at room temperature at high speed for 3-4 hours to form a stable ethanolic carbon nanotube suspension.
[0019] 2) The ethanol suspension in step 1) is subjected to high-speed ball milling for 4-5 hours. A planetary ball mill is selected, and the rotation frequency of the ball mill is 30HZ to form an ethanol dispersion.
[0020] 3) The ethanol dispersion in step 2) was sonicated at 25°C for 30min, diluted 4 times, and sprayed directly on the surface of the EVA film, dried at 40°C to obtain an EVA electrostatic conductive coating. Use the surface resistance meter. Get resistance 10 7 -10 8 ohm.
Example Embodiment
[0021] Example 3:
[0022] 1) Stir 4g of carbon nanotubes, 1g of anionic polyacrylamide dispersant, 3g of PVP binder and 200ml of ethanol for 3-4 hours at room temperature to form a stable ethanolic carbon nanotube suspension.
[0023] 2) The ethanol suspension in step 1) is subjected to high-speed ball milling for 4-5 hours. A planetary ball mill is selected, and the rotation frequency of the ball mill is 30HZ to form an ethanol dispersion.
[0024] 3) The ethanol dispersion in step 2) was sonicated at about 30°C for 30min, diluted 4 times, and sprayed directly on the surface of the EVA film, dried at 50°C to obtain an EVA electrostatic conductive coating. Use the surface resistance meter. Get resistance 10 7 -10 8 ohm.
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