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Multi-frequency wave-absorbing patch for offshore wind power project and preparation method of multi-frequency wave-absorbing patch

A wave-absorbing patch and offshore wind power technology, applied in the field of wave-absorbing materials, can solve the problems that the service life of wave-absorbing materials cannot meet the requirements, affect the combat performance of military systems, harsh climate and environmental conditions, etc., and achieve good harsh climate tolerance. The effect of sexual performance, maintaining appearance consistency, and good appearance performance

Active Publication Date: 2022-03-22
武汉康泰威新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The radar reflection cross-sectional area of ​​the fan tower is relatively large, and strong reflection may cause the receiving structure of radar and other communication equipment to be in a saturated working state, or even oversaturation and cause equipment damage, which seriously affects the normal performance of military system combat performance. In order to reduce The impact of the reflection of the wind turbine tower will attach or paint the absorbing material on its surface. However, when the conventional absorbing material is applied to the offshore wind tower, there will be some insurmountable defects, such as the climate and environmental conditions at sea Relatively harsh, the service life of conventional absorbing materials cannot meet the requirements

Method used

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  • Multi-frequency wave-absorbing patch for offshore wind power project and preparation method of multi-frequency wave-absorbing patch
  • Multi-frequency wave-absorbing patch for offshore wind power project and preparation method of multi-frequency wave-absorbing patch
  • Multi-frequency wave-absorbing patch for offshore wind power project and preparation method of multi-frequency wave-absorbing patch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Weigh 160 parts of flaky hydroxyl iron powder with a particle size of 3-5 microns and 50 parts of thermoplastic polyolefin, mix and heat to 160-170°C, heat and stir for 10 minutes to obtain the wave-absorbing layer slurry, and mix the wave-absorbing layer slurry Rolling treatment by a roller press machine to obtain a 1.5mm wave-absorbing layer;

[0054] Weigh 50 parts of flaky hydroxyl iron powder with a particle size of 3-5 microns, 30 parts of thermoplastic polyolefin, 1 part of copper-coated graphite powder with a particle size of 3-5 microns, and nickel-plated carbon fibers with an average length of 0.1-2mm 1 part, mixed and heated to 160-170°C, kept warm and stirred for 10 minutes to obtain a transition layer slurry, and the transition layer slurry was rolled by a roller press to obtain a 0.5mm transition layer;

[0055]Weigh 95 parts of thermoplastic polyolefin, 0.1 part of leveling agent and 0.1 part of defoamer, mix and heat to 160-170°C, keep warm and stir for ...

Embodiment 2

[0059] Weigh 160 parts of flaky hydroxyl iron powder with a particle size of 3-5 microns, 50 parts of thermoplastic polyolefin, 1 part of coupling agent, 1 part of dispersing agent, 3 parts of leveling agent, and 1 part of defoamer, mix and heat To 160-170°C, keep warm and stir for 10 minutes to obtain the wave-absorbing layer slurry, and roll the wave-absorbing layer slurry through a roller press to obtain a 1.5mm wave-absorbing layer;

[0060] Weigh 50 parts of flaky hydroxyl iron powder with a particle size of 3-5 microns, 30 parts of thermoplastic polyolefin, 1 part of copper-coated graphite powder with a particle size of 3-5 microns, and nickel-plated carbon fibers with an average length of 0.1-2mm 1 part, 0.1 part of coupling agent, 0.1 part of dispersant, 0.1 part of leveling agent and 0.1 part of defoamer, mixed and heated to 160-170 ° C, kept stirring for 10 minutes to obtain the transition layer slurry, the transition layer slurry Rolling treatment by a roller press ...

Embodiment 3

[0065] Weigh 165 parts of flaky hydroxyl iron powder with a particle size of 3-5 microns, 55 parts of thermoplastic polyolefin, 1.5 parts of coupling agent, 1.5 parts of dispersing agent, 4 parts of leveling agent, and 2 parts of defoamer, mix and heat To 160-170°C, heat preservation and stirring for 15 minutes to obtain the wave-absorbing layer slurry, and roll the wave-absorbing layer slurry through a roller press to obtain a 1mm wave-absorbing layer;

[0066] Weigh 55 parts of flaky hydroxyl iron powder with a particle size of 3-5 microns, 35 parts of thermoplastic polyolefin, 5 parts of copper-coated graphite powder with a particle size of 3-5 microns, and nickel-plated carbon fibers with an average length of 0.1-2mm 5 parts, 1 part of coupling agent, 1 part of dispersant, 1 part of leveling agent and 1 part of defoamer, mixed and heated to 160-170 ° C, kept stirring for 15 minutes to obtain the transition layer slurry, the transition layer slurry Rolling treatment by a ro...

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Abstract

The invention provides a multi-frequency wave-absorbing patch for an offshore wind power project and a preparation method, specifically, the multi-frequency wave-absorbing patch comprises a substrate layer, a transition layer, a wave-absorbing layer and a protection layer which are sequentially stacked, the substrate layer is made of an adhesive material, the transition layer and the wave-absorbing layer respectively absorb radar waves of different wave bands, and the protection layer is made of a protective layer. The transition layer is prepared from hydroxyl iron powder, thermoplastic polyolefin, copper-plated graphite powder and nickel-plated carbon fibers, the wave absorbing layer is prepared from hydroxyl iron powder and thermoplastic polyolefin, and the protective layer is prepared from thermoplastic polyolefin, a flatting agent and a defoaming agent. The multi-frequency wave-absorbing patch is obtained by rolling the multi-layer structure at a certain temperature to form a composite structure, and the multi-frequency wave-absorbing patch has good appearance performance, good radar wave absorbing effect, good severe environment tolerance performance and wide application prospect.

Description

technical field [0001] The invention relates to the technical field of wave-absorbing materials, in particular to a multi-frequency wave-absorbing patch for offshore wind power projects and a preparation method thereof. Background technique [0002] The huge structure of the wind farm has a negative impact on the performance of nearby military equipment and facilities, especially communication equipment such as radar. The radar reflection cross-sectional area of ​​the fan tower is relatively large, and strong reflection may cause the receiving structure of radar and other communication equipment to be in a saturated working state, or even oversaturation and cause equipment damage, which seriously affects the normal performance of military system combat performance. In order to reduce The impact of the reflection of the wind turbine tower will attach or paint the absorbing material on its surface. However, when the conventional absorbing material is applied to the offshore wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J123/22C08L23/00C08K3/18C08K7/00C08K9/02C08K3/04C08K7/06C08J5/18
CPCC09J7/29C08J5/18C08J2323/00C08K3/18C08K7/00C08K9/02C08K3/04C08K7/06C09J2301/122C09J2301/16C09J2301/41C09J2423/006C09J2423/00
Inventor 许欣月张捷黄宇熊星
Owner 武汉康泰威新材料技术有限公司
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