Fiberglass radome modified by glass beads and preparation method thereof

A fiberglass radome and glass bead technology, applied in the direction of the radiation unit cover, can solve the problem of high DK value, achieve the effect of low DK value, good wave transmission performance, and high product yield

Active Publication Date: 2009-12-23
NANJING HUAGE ELECTRONICS & AUTOMOBILE PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The study found that the DK value of glass beads is generally between 1.2-2.0. If glass beads can be used to modify FRP radome, it can solve the problem of high DK value of existing FRP radome products. The second experiment finally successfully developed the formula and processing method of FRP radome modified with glass beads

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The condition parameter of its extrusion process in the preparation method of embodiment is as follows:

[0023]

Embodiment 1

[0025] Raw material formula: 100kg of unsaturated polyester (A402-972), 10kg of hollow glass microspheres with an average particle size of 10 microns, 2kg of pigment paste (RAL7035), 1kg of release agent, 1kg of curing agent, 1kg of accelerator, and the tested product The dielectric constants are listed in Table 1.

Embodiment 2

[0027] Raw material formula: 100kg of unsaturated polyester (A409-972), 8kg of hollow glass microspheres with an average particle size of 10 microns, 2kg of pigment paste (RAL4008), 1kg of release agent, 1kg of curing agent, 1kg of accelerator, and the tested product The dielectric constants are listed in Table 1.

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Abstract

The invention discloses a fiberglass radome modified by glass beads, which reduces the DK value thereof, and improves the wave penetration performance of the products. The fiberglass radome modified by glass beads is prepared by the following raw materials in weight portion: 100 portions of unsaturated polyester, 2-10 portions of glass beads, 0.5-2 portions of mold release agent, 0.5-2 portions of curing agent and 0.5-2 portions of accelerator.

Description

technical field [0001] The invention relates to a glass fiber reinforced plastic radome and a preparation method thereof, in particular to a glass fiber reinforced plastic radome modified with glass beads and a preparation method thereof. Background technique [0002] Due to the advantages of good weather resistance, insulation, light weight, high strength, stable size and high production efficiency, FRP radome has been widely used in many fields such as the protective shell of wireless and mobile communication base station antennas. FRP radome is generally extruded with unsaturated polyester as the main raw material and then added with fillers and related additives. Unsaturated polyester (abbreviated UP) mainly refers to the combination of diol and all or part of unsaturated dibasic acid. The resin obtained by condensation polymerization usually has good heat resistance, insulation, water resistance, chemical resistance, and aging resistance, and the reinforced resin has hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42C08L67/06C08K7/20B29C47/92B29C48/92
CPCB29C48/9185B29C48/04B29C48/92B29C2948/9258B29C2948/92704B29C2948/92895B29C2948/92933
Inventor 李庆喜叶枫韬
Owner NANJING HUAGE ELECTRONICS & AUTOMOBILE PLASTIC IND
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