Foam base material for anti-millimeter wave radar camouflage net and processing technology of foam base material

Abstract

The invention relates to a foam base material for an anti-millimeter wave radar camouflage net and a processing technology of the foam base material, and belongs to the technical field of camouflage nets. The foam material is prepared by the steps: mixing the following components: 60-80 parts by mass of polyethylene or polypropylene or polyolefin, 1-10 parts by mass of modified carbon nanotubes, 1-5 parts by mass of modified graphene, 1-5 parts by mass of rare earth, 1-10 parts by mass of a flame retardant, 1-10 parts by mass of a foaming agent, 2-20 parts by mass of a sensitizing agent and 2-5 parts by mass of an antioxidant, and then sequentially performing extrusion, irradiation and high-temperature foaming; and finally, pressing small rice grains on the single surface or double surfaces of a sheet. According to the invention, the prepared foam base material is provided with the small rice grains, so that the absorption and shielding effects on the millimeter-wave radar at a high frequency band can be realized.

Description

technical field [0001] The invention belongs to the technical field of camouflage nets, and in particular relates to a foam base material used for anti-millimeter wave radar camouflage nets and a processing technology thereof. Background technique [0002] Camouflage net is an important camouflage shielding equipment, and it is a "protective umbrella" for military targets such as weapons and equipment and military facilities on the battlefield. [0003] The camouflage net is mainly composed of a bottom net and a net surface. The bottom net of the early 81 camouflage net was woven into the fabric with metal wires, and the bottom net of the subsequent 87 camouflage net was made of stainless steel short fibers blended in the textile thread of the fabric. The 95 camouflage net adopts thermal insulation layer, that is, it is made of thermal insulation cloth coated with high reflective coating on the inner surface and high and low emissivity coatings on the outer surface, and is p...

AI Technical Summary

Problems solved by technology

Generally, various protective layers are coated on the mesh surface and large-scale different patterns are suppressed, and the large patterns on the mesh surface mainly play the role of preventing low-frequency waves, and the protection of millimeter-wave radar is mainly through coating millimeter-wave radar Absorbing coating, but in actual use, it is still difficult to achieve complete shielding of millimeter-wave radar only through the absorption function of the protective coating

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