Anti-fatigue conductive composite material and preparation method thereof
A conductive composite material, fatigue-resistant technology, used in conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, nanotechnology for materials and surface science, etc. , The mechanical properties of composite materials are decreased, easy to stick and agglomerate, etc., to achieve the effect of high fatigue resistance, good electrical stability, and improved electrical conductivity.
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Embodiment 1
[0035] The preparation method of the fatigue-resistant conductive composite material of the present embodiment is as follows:
[0036] (1) Carry out acid oxidation treatment on the carbon nanofibers and carbon microfibers respectively, the acid oxidation treatment process is as follows: disperse the carbon nanofibers or carbon microfibers in an oxidizing acid solution. The mass ratio of concentrated nitric acid and concentrated sulfuric acid in the acid solution is 1:1, and the mass ratio of nano-carbon fiber or micron carbon fiber to the acid solution is 1:10. Magnetic stirring is performed at 60°C for 3 hours, and the acid-oxidized carbon fiber is repeatedly mixed with deionized water. Wash until the pH is 6 to 7, and dry at 120° C. for 3 hours to obtain nano-carbon fibers or micro-carbon fibers after acid oxidation treatment.
[0037] (2) Weighing raw materials, wherein the mass parts of silicone rubber, multi-walled carbon nanotubes, nano-carbon fibers and micro-carbon fib...
Embodiment 2
[0042] The preparation method of the fatigue-resistant conductive composite material of the present embodiment is as follows:
[0043] (1) Carry out acid oxidation treatment on the carbon nanofibers and carbon microfibers respectively, the acid oxidation treatment process is as follows: disperse the carbon nanofibers or carbon microfibers in an oxidizing acid solution. The mass ratio of concentrated nitric acid to concentrated sulfuric acid in the acid solution is 1:1, and the mass ratio of nano-carbon fiber or micron carbon fiber to the acid solution is 1:10. Magnetic stirring at 60°C for 3 hours, the carbon fiber after acid oxidation treatment is repeatedly mixed with deionized water. Wash until the pH is 6 to 7, and dry at 120° C. for 3 hours to obtain acid-treated nano-carbon fibers or micro-carbon fibers.
[0044] (2) Weighing raw materials, wherein the mass parts of silicone rubber, multi-walled carbon nanotubes, nano-carbon fibers and micro-carbon fibers are 100 parts, ...
Embodiment 3
[0049] The fatigue-resistant conductive composite material of this embodiment is prepared through the following steps:
[0050] (1) Carry out acid oxidation treatment on the carbon nanofibers and carbon microfibers respectively, the acid oxidation treatment process is as follows: disperse the carbon nanofibers or carbon microfibers in an oxidizing acid solution. The mass ratio of concentrated nitric acid to concentrated sulfuric acid in the acid solution is 1:1, and the mass ratio of nano-carbon fiber or micron carbon fiber to the acid solution is 1:10. Magnetic stirring at 60°C for 3 hours, the carbon fiber after acid oxidation treatment is repeatedly mixed with deionized water. Wash until the pH is 6 to 7, and dry at 120° C. for 3 hours to obtain acid-treated nano-carbon fibers or micro-carbon fibers.
[0051] (2) Weighing raw materials, wherein the mass parts of silicone rubber, multi-walled carbon nanotubes, nano-carbon fibers and micro-carbon fibers are 100 parts, 1 part,...
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