Fiberglass radome and preparation method thereof

Abstract

The invention discloses a glass fiber reinforced plastic radome and a preparation method thereof. The glass fiber reinforced plastic radome comprises the following raw materials by mass: 100 parts of thermosetting synthetic resin, 10.2-14.9 parts of glass beads, 0.6-1.9 parts of a release agent, and 0.5-4 parts of a curing agent. The preparation method comprises: that a thermosetting synthetic resin solution and the glass beads are stirred and mixed to form a required slurry, and the slurry is put in a resin tank; that thrums are extracted from glass fiber yarns on a creel, and the glass fiber yarns are dipped in the slurry-containing resin tank after being arranged by a yarn guide plate; that multiple sheets of glass fiber mats clamp the glass fiber yarns, wherein the glass fiber mats are extracted from a felt frame and the glass fiber yarns are dipped in the slurry; that a felt-yarn compound is introduced into a die and is heated so that the compound is cured and molded; that a draw gear draws a molded radome assembly from theoutlet of the die; and that the assembly is assembled to form the glass fiber reinforced plastic radome. The glass beads are added into the resin in the preparation method, which improves the mechanical strength, reduces the dielectric loss and the cost, and enhances wave-transparent effects. The method also carries out a surface modification treatment on the fiber mats and the glass beads, so that a bonding force between the two is strengthened.

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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