Graphene conductive paste and preparation method thereof
A conductive paste, graphene technology, applied in conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve problems affecting the electrical performance and stability of electronic devices, and achieve good flexibility and photothermal degradation resistance, improving mechanical properties, reducing the amount of use
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[0038] Example 1
[0039] In this embodiment, epoxy functionalized epoxy resin for graphene, epoxy modified epoxy for siloxane, and epoxy resin as one of the main components of graphene conductive paste are all used Bisphenol A type epoxy resin. The bisphenol A epoxy resin was purchased from Shenzhen Jiadida Chemical Co., Ltd., and the model was NPEL-128E.
[0040] Add 2g of graphene powder (high conductivity graphene powder prepared by Shenzhen Enwang New Material Technology Co., Ltd.), 3.5g of bisphenol A epoxy resin and 200g of absolute ethanol into the medium and high speed rotating chamber tester in. The high-speed rotating cavity testing machine is equipped with an ultrasonic generator and a heating thermostat. The mixture is rotated at a high speed of 20-120℃, 1600rpm and oscillated under 2000W, 80KHz ultrasonic for 1-8h, and then filtered and dried under vacuum at a temperature below 50℃ to remove the solvent to obtain surface functionalized graphene powder .
[0041] Ad...
Example Embodiment
[0043] Example 2
[0044] In this embodiment, the epoxy functionalized epoxy resin for graphene, the epoxy modified epoxy resin for siloxane, and the epoxy resin as one of the main components of the graphene conductive paste are all used The bisphenol F epoxy resin replaces the bisphenol A epoxy resin in Example 1, and the rest are the same as in Example 1. The bisphenol F type epoxy resin was purchased from Shenzhen Jiadida Chemical Co., Ltd., and the model was NPEF-170.
Example Embodiment
[0045] Example 3
[0046] In this example, the epoxy functionalized epoxy resin for graphene and the epoxy modified epoxy resin for siloxane both use the bisphenol A type epoxy resin in Example 1 as graphene conductive The epoxy resin as one of the main components of the slurry adopts the bisphenol F type epoxy resin in Example 2, and the rest are the same as in Example 1.
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