Composite conductive agent, preparation method thereof, and preparation method of conductive coating material
A technology of composite conductive agent and coating material, which is applied to conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc. and other problems, to achieve high practical significance and application value, enhance electrical conductivity, and improve the effect of electrical conductivity
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[0029] The embodiment of the present application provides a preparation method of a composite conductive agent, comprising the following steps:
[0030] S11. Adding the biochar source into the metal salt solution, after stirring, adding carbon material to obtain a mixed solution;
[0031] S12, spray drying the mixed solution;
[0032] S13. Calcining the spray-dried product in an inert gas atmosphere to obtain a composite conductive agent.
[0033] In some embodiments, the source of biochar is orange peel;
[0034] And / or, the metal salt includes at least one of aluminum salt, copper salt, iron salt, silver salt;
[0035] And / or, the carbon material includes at least one of graphene, carbon black, carbon nanotubes, and acetylene black.
[0036] It should be noted that in the examples of the present application, the orange peel is the peel of a ripe orange. In addition to the orange peel, the biomass carbon source can also use straw, bagasse waste wood chips, etc., and the me...
Embodiment 1
[0056] The embodiment of the present application provides a preparation method of a composite conductive agent, comprising the following steps:
[0057] S11, adding 10 parts by weight of orange peel to 100 parts by weight of a 7% sodium hydroxide solution for 24 hours, removing the orange peel and draining the water, then drying at 80°C for 10 hours, finally grind into powder;
[0058] S12, dissolving 1 part by weight of copper carbonate into 100 parts by weight of water, then adding 15 parts by weight of acetylene black, then adding 1.5 parts of orange peel prepared in S11, stirring evenly, and spray drying to obtain micron-sized Particles; wherein, the specific process of spray drying is as follows: the feed temperature is 200°C, the discharge temperature is 150°C, and the particle size of the spray-dried product is 30 μm;
[0059] S13: Put the particles prepared in S12 in N 2 Calcined at 500°C for 5 hours in a gas atmosphere to obtain a composite conductive agent.
[006...
Embodiment 2
[0065] The embodiment of the present application provides a preparation method of a composite conductive agent, comprising the following steps:
[0066] S11. Add 10 parts by weight of orange peel to 100 parts by weight of a 7% potassium hydroxide solution and soak for 24 hours, remove the orange peel and drain the water, and then dry it at 100°C for 5 hours. finally grind into powder;
[0067] S12, dissolving 1 part by weight of aluminum carbonate into 100 parts by weight of water, then adding 10 parts by weight of carbon nanotubes, and then adding 1 part of orange peel prepared in S11, stirring evenly, and spray drying to obtain micron grade particles; wherein, the specific process of spray drying is as follows: the feed temperature is 200°C, the discharge temperature is 150°C, and the particle size of the spray-dried product is 30 μm;
[0068] S13: calcining the particles prepared in S12 at a high temperature of 600° C. for 4 hours in an Ar gas atmosphere to obtain a compos...
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Abstract
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