Electroconductive rubber film and preparation method thereof
A technology of conductive rubber and film, which is applied to the device and coating of the surface coating liquid, which can solve the problems of inelasticity and adhesion, and achieve the effects of good elasticity, strong adhesion and safe operation
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[0038] The preparation method of conductive rubber film of the present invention comprises the following steps:
[0039] A. The ingredients are mixed according to the weight ratio.
[0040] B. Stir fully to fully mix the conductive filler and silicone rubber to avoid agglomeration of the conductive filler.
[0041] C. Dilute the viscosity of the conductive rubber to a suitable viscosity with a diluent.
[0042] D. Fully stir and mix to obtain a mixed liquid with good fluidity.
[0043] E. Preparation of liquid coating.
[0044] F, vulcanization.
Embodiment 1
[0046] The conductive composite material is RTV (60wt%) and nickel carbonyl (30wt%), diluted by adding 10wt% acetone, and the viscosity is 20Pa·s. Use a spray gun for spraying, the nozzle diameter is 1mm, the air pressure is 0.5MPa, the spraying distance is 5cm, and the spraying time is 20s. After curing at room temperature for 24 hours, the thickness of the conductive film is 100 μm. The resistivity is 3×10 3 Ω·m. The conductive film is foldable and has an elongation of 30%.
Embodiment 2
[0048] The conductive composite material is RTV (40wt%) and nickel carbonyl (40wt%), diluted with 20wt% acetone, and the viscosity is 15Pa·s. The film was prepared by spin coating method, the spin speed was 1000r / min, and the spin coating time was 20s. After curing at room temperature for 24 hours, the coating thickness is 100 μm. The resistivity is 2×10 2 Ω·m. The conductive film is foldable and has an elongation of 35%.
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