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.

Active Publication Date: 2018-05-29
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiency that the mechanical and thermal insulation properties of the existing thermal insulation materials cannot be taken into account at the same time, and combine nano-layered materials with epoxy resin to provide an epoxy resin thermal insulation composite material, which is caused by the present invention The composite material of the quilt not only has good heat insulation performance but also has good toughness and can withstand a certain impact pressure.

Method used

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  • Epoxy resin thermal insulation composite material and preparation method thereof
  • Epoxy resin thermal insulation composite material and preparation method thereof
  • Epoxy resin thermal insulation composite material and preparation method thereof

Examples

Experimental program
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Effect test

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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Abstract

The invention provides an epoxy resin thermal insulation composite material and a preparation method thereof. The epoxy resin thermal insulation composite material comprises epoxy resin, graphene anda nanoscale mica plate, wherein graphene layers and mica plate layers formed by the graphene and the nanoscale mica plate alternate to lay to mold with the epoxy resin in a laminated form. The methodincludes preparation of the nanoscale mica plate, a lamination process of a heat-insulating composite material, and a composite process with the epoxy resin, by adjusting of the sizes of graphene nanoplates and the mica plates, the weight ratio between the graphene and the mica plate, and the like, by use of the synergistic effect between the graphene and the mica plate, both thermal insulation properties and mechanical properties of the thermal insulation material can be achieved. The mica plate and the like are simple and reliable in preparation processes, easy to prepare in large quantities, and low in cost, and the mixing process system of various types of raw materials is mature and easy to operate. The final product has excellent thermal insulation performances and mechanical properties, and can be applied in the field of external protection of various types of aircrafts.

Description

technical field [0001] The invention relates to an epoxy resin heat-insulating composite material and a preparation method, in particular to a preparation method of various nanometer materials and a composite assembly process between various materials, and belongs to the technical field of composite materials. Background technique [0002] A hypersonic vehicle needs to fly at a high Mach number for a long time, and its surface needs to withstand very high temperatures and very large airflow impacts. Thermal materials need to have a certain mechanical strength. [0003] Among the existing thermal insulation composite materials, airgel is a commonly used thermal insulation material. Although the thermal insulation effect of airgel is good, its mechanical properties are poor, it cannot play a load-bearing role, and its high cost is not conducive to large-area use; resin Matrix composite materials have the advantages of high specific strength, high specific modulus, good overal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L63/04C08K9/00C08K7/00C08K3/04C08K3/34
CPCC08K3/04C08K3/34C08K7/00C08K9/00C08K2201/003C08K2201/011C08L2201/08C08L63/00C08L63/04
Inventor 许学伟柯红军许孔力王文宾谢永旺李丽英夏雨嵇培军王国勇
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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