Polyurethane cross-linked reduced graphene oxide composite conductive film and its preparation method and application
A technology of graphene composite and conductive film, which is applied in the direction of equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, conductive layers on insulating carriers, etc., can solve metal fatigue, difficult to reach the level of application, durability Poor corrosion performance and other issues
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Embodiment 1
[0038] A polyurethane cross-linked reduced graphene oxide composite conductive film is formed by cross-linking polyurethane and reduced graphene oxide, wherein the mass fraction of polyurethane in the polyurethane cross-linked reduced graphene oxide composite conductive film is 5%.
[0039]A preparation method of the polyurethane cross-linked reduced graphene oxide composite conductive film in the above-mentioned embodiments of the present invention, comprising the following steps:
[0040] (1) Get 10mL of single-layer graphene oxide aqueous phase solution with a concentration of 13.8mg / mL (the average radial size of single-layer graphene oxide in this single-layer graphene oxide aqueous phase solution is 40 μm to 50 μm, and the single-layer ratio >95%), put it on a magnetic stirrer and stir rapidly; during the stirring process, first add 0.35ml of deionized water, stir for 10min, and then add 6.9mL of water-based polyurethane aqueous phase solution with a concentration of 1mg / ...
Embodiment 2
[0046] A polyurethane cross-linked reduced graphene oxide composite conductive film is basically the same as the polyurethane cross-linked reduced graphene oxide composite conductive film in Example 1, the only difference being: the polyurethane cross-linked reduced graphene oxide composite conductive film in Example 2 The mass fraction of polyurethane is 1%.
[0047] The preparation method of the polyurethane cross-linked reduced graphene oxide composite conductive film of embodiment 2 is basically the same as the preparation method of the polyurethane cross-linked reduced graphene oxide composite conductive film in embodiment 1, the only difference being: the preparation method of embodiment 2 The amount of the aqueous polyurethane solution in water is 1.38mL.
Embodiment 3
[0049] A polyurethane cross-linked reduced graphene oxide composite conductive film is basically the same as the polyurethane cross-linked reduced graphene oxide composite conductive film in Example 1, the only difference being: the polyurethane cross-linked reduced graphene oxide composite conductive film in Example 3 The mass fraction of polyurethane is 10%.
[0050] The preparation method of the polyurethane cross-linked reduced graphene oxide composite conductive film of embodiment 3 is basically the same as the preparation method of the polyurethane cross-linked reduced graphene oxide composite conductive film in embodiment 1, the only difference being: the preparation method of embodiment 3 The amount of the aqueous polyurethane aqueous phase solution is 13.8mL.
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