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A kind of anti-rain erosion elastic protective coating for radome and preparation method thereof

A technology for protecting coatings and radomes, applied in polyurea/polyurethane coatings, coatings, pigment pastes, etc., can solve the problem that the radome is easily washed by raindrops, hail, etc., affecting the structural safety and electrical performance of the radome, and the radome Damage and other problems, to ensure the elongation at break and resilience performance, improve wear resistance, improve the effect of aging resistance

Active Publication Date: 2020-04-14
中昊北方涂料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The radome is easily washed by raindrops, hail, etc. Long-term washing will cause damage to the radome, which will affect the structural safety and electrical performance of the radome

Method used

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  • A kind of anti-rain erosion elastic protective coating for radome and preparation method thereof
  • A kind of anti-rain erosion elastic protective coating for radome and preparation method thereof
  • A kind of anti-rain erosion elastic protective coating for radome and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Add 50g NH-1420, 20g n-butyl acetate, 0.5g dispersant, 0.1g leveling agent, 0.3g defoamer, 0.5g ultraviolet absorber, 1.2g titanate coupling agent into the cylinder, After stirring evenly, add 1g of TS-100 in two batches, stir and disperse evenly, and then filter out the material to obtain component A of the anti-rain erosion elastic protective coating for radome.

[0051] (2) Add 72g of N-210, 55g of T5650J, and 60g of xylene into the ladle, stir evenly, add 38g of titanium dioxide and 20g of silicon carbide, grind to a fineness of ≤30μm through a grinding and dispersing equipment, and then filter out the material to obtain the radome protection Hydroxyl resin color paste for component B of rain erosion elastic protective coating.

[0052] (3) Put 170g of hydroxyl resin color paste, 5.4g of trimethylolpropane, and 22g of xylene into the reaction bottle, raise the temperature to 130°C to 135°C under the protection of inert gas, reflux for dehydration reaction for 2 ...

Embodiment 2

[0054] (1) Add 44g NH-1520, 26g methyl isobutyl ketone, 0.8g dispersant, 0.05g rheological additive, 0.5g defoamer, 0.8g ultraviolet absorber, 1.4g titanate coupling agent to pull Add 1.2g of ED-30 in three batches after stirring evenly in the tank, stir and disperse evenly, filter out the material, and obtain component A of the anti-rain erosion elastic protective coating for radome.

[0055] (2) Add 80g of N-204, 48g of T5651, and 72g of n-butyl acetate into the tank, stir evenly, add 17g of organic yellow and 24g of boron nitride, grind to a fineness of ≤30μm through a grinding and dispersing equipment, and then filter out the material to obtain Hydroxyl resin color paste for the second component of rain-corrosion elastic protective paint for radome.

[0056](3) Put 200g of hydroxyl resin color paste, 2.5g of pentaerythritol, and 36g of xylene into a reaction flask, heat up to 130°C to 135°C under the protection of an inert gas, reflux for dehydration for 2 hours, then cool...

Embodiment 3

[0058] (1) Mix 26gNH-1220, 28gNH-1521, 17g n-butyl acetate, 6g n-pentyl acetate, 0.7g dispersant, 0.2g leveling agent, 0.5g defoamer, 0.7g ultraviolet absorber, 1.5g titanium Add the ester coupling agent into the pull tank, stir evenly, add 1.4g ED-30 in two batches, stir and disperse evenly, filter out the material, and obtain the first component of the rain-erosion resistant elastic protective coating for the radome.

[0059] (2) Add 66g of N-204, 18g of T5650E, 40g of T5651, 30g of xylene, and 30g of methyl isobutyl ketone into the cylinder, stir evenly, add 8g of carbon black and 23g of silicon carbide, and grind to a fineness of ≤30μm by grinding and dispersing equipment After filtering and discharging, the hydroxyl resin color paste for the second component of the anti-rain erosion elastic protective paint for the radome is obtained.

[0060] (3) Put 167g of hydroxyl resin color paste, 4.4g of glycerol, and 29g of xylene into the reaction bottle, raise the temperature to...

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PUM

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Abstract

The invention provides rain-erosion-proof and elastic protection coating for an antenna housing. The coating is double-component coating and is mainly composed of a component A and a component B. Thecomponent A is prepared from polyaspartate resin, gas-phase silicon dioxide, an auxiliary agent, a titanate coupling agent, a solvent and the like; the component B is an elastic pre-polymer prepared from hydroxyl polyester color paste, polyatomic alcohol, aliphatic isocyanate, a solvent and the like; the tensile strength and the elongation at break of a coating film are adjusted through a molecular structure design, so that the coating film has relatively good wear-resisting performance and elasticity; the service life of the antenna housing can be prolonged and the safety of the antenna housing can be improved.

Description

technical field [0001] The invention relates to an anti-rain erosion elastic protective paint for a radome and a preparation method thereof. Background technique [0002] Antennas are generally placed outdoors and are extremely vulnerable to natural environment erosion, resulting in reduced or damaged accuracy, affecting the service life and reliability of the antenna. The radome is mainly used to protect the antenna system from the influence of the external environment, improve the safety and reliability of the antenna system, reduce the wear, corrosion and aging of the antenna system, and prolong its service life. [0003] The radome is easily washed by raindrops, hail, etc. Long-term washing will cause damage to the radome, which will affect the structural safety and electrical performance of the radome. Therefore, the surface of the radome needs to be coated with rain-resistant elastic protective paint to protect it. This coating can protect the radome well without aff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D179/08C09D175/06C09D175/08C09D7/61C09D17/00C08G18/66C08G18/44C08G18/48C08G18/32
CPCC08G18/3206C08G18/4018C08G18/44C08G18/48C08G18/6611C08K2003/385C08L2205/02C08L2205/025C08L2205/03C08L2205/035C09D17/002C09D179/08C08L75/08C08L75/06C08K13/02C08K3/22C08K3/34C08K3/36C08K3/38C08L79/08C08K3/04
Inventor 张剑飞王进忠李斌范永宁张全伟马艳青文琛
Owner 中昊北方涂料工业研究设计院有限公司
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