Composition for manufacturing antenna base and method for preparing base

Abstract

The invention discloses a composition for manufacturing an antenna base and a method for preparing the base. The composition consists of an epoxide resin, a curing agent, an accelerating agent, alkali-free chopped epoxidized glass fiber filament yarns, an ultraviolet absorber or a screening agent, nano-quartz powders, a defoaming agent, a thickening agent and a dye, or consists of a vinyl resin or an unsaturated polyester resin, a red material, a white material, neutral alkali chopped epoxidized glass fiber filament yarns, the ultraviolet absorber or the screening agent, the nano-quartz powders, the defoaming agent, the thickening agent and the dye. The preparation method comprises the following steps: respectively weighing various raw materials in mass ratio; putting the epoxide resin, the curing agent, the accelerating agent and the alkali-free chopped epoxidized glass fiber filament yarns into a stirrer to stir uniformly until the foams disappear; then adding other raw materials, sufficiently stirring the mixture to form a ball mixture; and putting the ball mixture on a heated base die, closing the die and carrying out stepping heating and curing, and naturally cooling and disassembling the die to obtain the antenna base. The antenna base has the advantages of tensile strength of over 18kN, strong impact resistance, strong ageing resistance or ultraviolet resistance, good flame retardance, good toughness and high electrical insulation, and is widely used for army and wireless telecommunication equipment.

Description

technical field

[0001] The invention relates to a composition for manufacturing an antenna base and a preparation method for the base. Background technique

[0002] Existing armored vehicles, command vehicles, and tanks all have exposed antennas for receiving and transmitting signals. The antenna is fixedly connected to the car body through the base of the antenna, and the internal structure of the antenna itself should be insulated from the car body, which is generally required to be made of a non-metallic insulator. And it is required that this non-metallic material must have good electrical insulation. However, the antenna bases currently installed on armored vehicles, command vehicles, and tanks have tensile strength less than 18kN, poor impact resistance, weak anti-aging (ultraviolet resistance), poor flame retardancy, low toughness, and electrical insulation of the base. No advanced defects. Contents of the invention

[0003] The purpose of the present invention i...

Examples

Embodiment 1

[0032] A composition for manufacturing an antenna base, which is promoted by mass ratio of 95-110 parts of ordinary epoxy resin, 80-95 parts of curing agent methyltetrahydrophthalic anhydride, and 8-12 parts of Dmp-30 Agent, 200-300 parts of alkali-free chopped epoxy glass fiber filaments, 3-4 parts of ultraviolet absorber or shielding agent, 16-20 parts of nano-quartz powder, 1.5-2 parts of defoamer , 1.5 to 2 parts of thickener, 0.3 to 0.4 parts of military green dye.

[0033] A kind of preparation method of antenna base, carry out according to the following steps:

[0034] 1. Weigh the various raw materials of the composition respectively by mass ratio, and stand-by;

[0035] ② Put the epoxy resin, methyl tetrahydrophthalic anhydride, and the accelerator into the mixer and stir well, and let it stand for 2 hours to let the bubbles disappear naturally;

[0036] ③. Make alkali-free chopped epoxy glass fiber filaments into 5-20mm chopped strands;

[0037] 4. The glass fiber...

Embodiment 2

[0045] A composition for manufacturing antenna bases, the composition consists of 97 to 105 parts of ordinary epoxy resin, 85 to 90 parts of curing agent methyltetrahydrophthalic anhydride, and 9 to 11 parts of Dmp-30 accelerator according to the mass ratio , 220-280 parts of alkali-free chopped epoxy glass fiber filaments, 3.3-3.6 parts of ultraviolet absorbers or shielding agents, 17-19 parts of nano-quartz powder, 1.6-1.8 parts of defoamers, 1.6 parts ~ 1.8 parts of thickener, 0.3 ~ 0.4 parts of military green dye, the preparation method is the same as in Example 1.

Embodiment 3

[0047] A kind of composition that manufactures antenna base, this composition is by mass ratio by 95 parts of ordinary epoxy resins, 83 parts of curing agent methyltetrahydrophthalic anhydrides, 12 parts of Dmp-30 accelerators, 270 parts of alkali-free chopped epoxy Type glass fiber filament, 4 parts of ultraviolet absorbers or shielding agents, 20 parts of nano-quartz powders, 2 parts of defoamers, 2 parts of thickeners, 0.4 parts of military green dyes, and the preparation method is the same as in Example 1.

technical field

[0001] The invention relates to a composition for manufacturing an antenna base and a preparation method for the base. Background technique

[0002] Existing armored vehicles, command vehicles, and tanks all have exposed antennas for receiving and transmitting signals. The antenna is fixedly connected to the car body through the base of the antenna, and the internal structure of the antenna itself should be insulated from the car body, which is generally required to be made of a non-metallic insulator. And it is required that this non-metallic material must have good electrical insulation. However, the antenna bases currently installed on armored vehicles, command vehicles, and tanks have tensile strength less than 18kN, poor impact resistance, weak anti-aging (ultraviolet resistance), poor flame retardancy, low toughness, and electrical insulation of the base. No advanced defects. Contents of the invention

[0003] The purpose of the present invention i...

Examples

Embodiment 1

[0032] A composition for manufacturing an antenna base, which is promoted by mass ratio of 95-110 parts of ordinary epoxy resin, 80-95 parts of curing agent methyltetrahydrophthalic anhydride, and 8-12 parts of Dmp-30 Agent, 200-300 parts of alkali-free chopped epoxy glass fiber filaments, 3-4 parts of ultraviolet absorber or shielding agent, 16-20 parts of nano-quartz powder, 1.5-2 parts of defoamer , 1.5 to 2 parts of thickener, 0.3 to 0.4 parts of military green dye.

[0033] A kind of preparation method of antenna base, carry out according to the following steps:

[0034] 1. Weigh the various raw materials of the composition respectively by mass ratio, and stand-by;

[0035] ② Put the epoxy resin, methyl tetrahydrophthalic anhydride, and the accelerator into the mixer and stir well, and let it stand for 2 hours to let the bubbles disappear naturally;

[0036] ③. Make alkali-free chopped epoxy glass fiber filaments into 5-20mm chopped strands;

[0037] 4. The glass fiber...

Embodiment 2

[0045] A composition for manufacturing antenna bases, the composition consists of 97 to 105 parts of ordinary epoxy resin, 85 to 90 parts of curing agent methyltetrahydrophthalic anhydride, and 9 to 11 parts of Dmp-30 accelerator according to the mass ratio , 220-280 parts of alkali-free chopped epoxy glass fiber filaments, 3.3-3.6 parts of ultraviolet absorbers or shielding agents, 17-19 parts of nano-quartz powder, 1.6-1.8 parts of defoamers, 1.6 parts ~ 1.8 parts of thickener, 0.3 ~ 0.4 parts of military green dye, the preparation method is the same as in Example 1.

Embodiment 3

[0047] A kind of composition that manufactures antenna base, this composition is by mass ratio by 95 parts of ordinary epoxy resins, 83 parts of curing agent methyltetrahydrophthalic anhydrides, 12 parts of Dmp-30 accelerators, 270 parts of alkali-free chopped epoxy Type glass fiber filament, 4 parts of ultraviolet absorbers or shielding agents, 20 parts of nano-quartz powders, 2 parts of defoamers, 2 parts of thickeners, 0.4 parts of military green dyes, and the preparation method is the same as in Example 1.