Epoxy resin thermal insulation composite material and preparation method thereof
A technology of epoxy resin and composite materials, applied in the field of composite materials, can solve the problem that the mechanical and thermal insulation properties cannot be taken into account at the same time, and achieve the effects of avoiding heat collection, increasing the force, and improving the impact resistance.
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Embodiment 1~3
[0037] According to the naphthalene skeleton epoxy resin (NC-7000, X-N linear naphthol novolac epoxy resin, ESN-185) that table 1 selects, adopt the graphene nanoplate that diameter is 3 ± 0.5 micron, thickness is 5 ± 1 nanometer, diameter 4 ± 0.5 microns, a mica sheet with a thickness of 60 ± 5 nanometers, wherein the weight ratio of the graphene sheet to the mica sheet is 1:8, and finally obtain the epoxy resin heat-insulating composite material of Examples 1-3, wherein the heat-insulating layer Structural diagram such as figure 1 shown.
[0038] Table 1 Different Naphthalene Skeleton Epoxy Resins
[0039]
[0040]
Embodiment 4~5
[0042] Select naphthalene skeleton epoxy resin NC-7000, use mica flakes with a diameter of 4±0.5 microns and a thickness of 60±5 nanometers, in which the weight ratio of graphene flakes to mica flakes is 1:8, and graphites of different sizes are selected according to Table 2 ene nanosheets with a thickness of 5±1 nanometers to finally obtain the epoxy resin heat-insulating composite materials of Examples 4-5.
[0043] Table 2 Graphene nanosheets of different sizes
[0044]
Embodiment 6~7
[0046] Select naphthalene skeleton epoxy resin NC-7000, and use graphene nanosheets with a diameter of 3 ± 0.5 microns and a thickness of 5 ± 1 nm. The weight ratio of graphene sheets to mica sheets is 1:8. The size of the mica sheet and its thickness is 60 ± 5 nanometers, and finally the epoxy resin heat-insulating composite materials of Examples 6-7 are obtained.
[0047] Table 3 Mica sheets of different sizes
[0048]
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