Glass reinforced plastic radome and preparation method thereof

Abstract

The invention discloses a glass reinforced plastic radome and a preparation method thereof. The raw materials of the glass reinforced plastic radome comprise, by mass, 100 parts of thermosetting artificial resin, 2.1-9.9 parts of glass beads, 0.5-4 parts of curing agents. The preparation method comprises steps of mixing thermosetting artificial resin solutions and the glass beads with stirring to form required slurry; placing first fiber cloth on a prepared glass reinforced plastic radome mold, coating uniformly the first fiber cloth with the slurry, placing second fiber cloth on the first fiber cloth which is coated with the slurry in an aligning mode, coating uniformly the second fiber cloth with the slurry, repeating the above operations until widths of a plurality of layers of fiber cloth which are coated with the slurry reach a preset width; and solidifying the plurality of layers of fiber cloth which are coated with the slurry at the normal temperature and obtaining the glass reinforced plastic radome. The glass beads are added to the resin, then mechanical strength is improved, the dielectric loss and the cost are reduced, and the wave transmitting effect is improved. The fiber cloth and the glass beads are subjected to surface modification processing, and the bonding force among fiber cloth and the glass beads is enhanced.

Description

technical field [0001] The invention relates to the technical field of metamaterials, more specifically, to a glass fiber reinforced plastic radome and a preparation method thereof. Background technique [0002] The scientific name of FRP is glass fiber reinforced plastic. It is a composite material with glass fiber and its products (glass cloth, tape, felt, yarn, etc.) as reinforcing material and synthetic resin as a matrix material. Because its strength is equivalent to steel, and it contains glass components, it also has the same color, shape, corrosion resistance, electrical insulation, heat insulation and other properties as glass, so it is called "glass fiber reinforced plastic". FRP generally refers to glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix. Due to the different types of resin used, it is called polyester FRP, epoxy FRP, and phenolic FRP. Due to the large degree of freedom in the selection of raw materials, product struc...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a glass fiber reinforced plastic radome with good wave-transmitting performance and its preparation method in view of the above-mentioned traditional glass fiber reinforced plastics in the prior art, which have large dielectric constant and loss and cannot meet the performance requirements in the electromagnetic field.

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