A light-weight anechoic chamber cone material and its preparation method

A sharp cone and darkroom technology, applied in the field of wave-absorbing materials, can solve the problems of being unsuitable for outdoor use, low mechanical strength, and poor heat resistance, and achieve the effects of easy folding, shrinking, storage and storage, high mechanical strength, and low cost

Active Publication Date: 2021-02-26
西安安聚德纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of large volume, high density, low mechanical strength, short life, poor heat resistance, unsuitable for outdoor use, and unfavorable for environmental protection in traditional wave-absorbing anechoic chamber cone materials based on non-structural foam, the present invention provides a low-cost Low cost, high mechanical strength, low density, long life, and good performance light-weight anechoic chamber cone material, easy to shrink and store, reduce transportation costs and storage space, and facilitate the construction and use of confidential testing outfields

Method used

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  • A light-weight anechoic chamber cone material and its preparation method
  • A light-weight anechoic chamber cone material and its preparation method
  • A light-weight anechoic chamber cone material and its preparation method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0047] Example 1: 300mm high 120°C light-weight anechoic chamber tip material for long-term use

[0048] (1) Production process such as figure 1 As shown, firstly, the honeycomb cone structure is optimized by electromagnetic simulation, and the flexible substrate is determined to have an area density of 110g / m 2 The flame-retardant kraft paper is made of flame-retardant kraft paper, the conductive wave-absorbing agent is graphene, and the resin is water-soluble phenolic formaldehyde; according to the electromagnetic simulation design, the total height H of the honeycomb is 300mm, the height of the cone is 220mm, and the bottom width D is 100mm. Performance, using oblique honeycomb, the angle of the honeycomb and the opening forms a 15° angle, a layer of corrugated honeycomb is a positive 15° angle, and its upper and lower sides are a negative 15° angle, forming an alternate superposition of positive and negative 15° angles to ensure the best performance symmetry. The side le...

Embodiment 2

[0056] Example 2: 500mm high 300°C light-weight anechoic chamber tip material for long-term use

[0057] (1) Production process such as figure 1 As shown, firstly, electromagnetic simulation is used to optimize the design of the honeycomb cone structure, and the flexible substrate is determined to have an area density of 200g / m 2 The conductive wave-absorbing agent is graphene, and the resin is modified silicone resin; according to the electromagnetic simulation design, the total height H of the honeycomb is 500mm, the height of the cone is 400mm, and the bottom width D is 150mm. Wave performance, using oblique honeycomb, the angle of the honeycomb and the opening forms a 15° angle, a layer of corrugated honeycomb is a positive 15° angle, and its top and bottom are negative 15° angles, forming an alternate superposition of plus and minus 15° angles to ensure performance of symmetry. The side length and depth of the honeycomb are both 5mm, and the surface resistance of the wa...

Embodiment 3

[0064] Example 3: 400mm high and 80°C long-term use of oblique-incidence wave-absorbing wedge honeycomb light-weight wave-absorbing anechoic chamber cone material (1) The production process is as follows figure 1 As shown, firstly, the honeycomb cone structure is optimized by electromagnetic simulation, and the flexible substrate is determined to have an area density of 60g / m 2 The polyester non-woven fabric (thickness 100μm), the conductive wave absorbing agent is graphene, and the resin is modified phenolic resin; according to the electromagnetic simulation design, the total height H of the honeycomb is 400mm, the height h of the cone is 300mm, and the bottom width D is 120mm , in order to improve the absorbing performance of oblique incidence, oblique honeycomb is used. One side of the honeycomb cone is at an angle of about 40°, and the other side is at an angle of 52°. The angle of the honeycomb and the opening forms an angle of 45°. The surface resistance of the wave-abso...

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Abstract

The invention relates to the technical field of wave-absorbing materials, in particular to a light-weight wave-absorbing darkroom pointed cone material and a preparation method thereof; the light-weight wave-absorbing darkroom pointed cone material is equipped with a honeycomb-shaped pointed cone structure formed by assembling a flexible base material, and the surface of the honeycomb-shaped pointed cone structure is provided with a graphene conductive coating. The light-weight wave-absorbing darkroom pointed cone material in the invention is equipped with the honeycomb-shaped pointed cone structure, and the graphene conductive coating is arranged on the surface of the honeycomb-shaped pointed cone structure, the cost is low, the mechanical strength is high, the density is low, the servicelife is long, the performance is good, convenience is brought for contraction, collection and conservation, the transportation cost and the storage space are reduced, and the construction and the useof a confidential test outfield are facilitated; the production efficiency of the preparation technology is high, the equipment cost is low, the light-weight wave-absorbing darkroom pointed cone material is suitable for mass production, arrangement linkage is achieved among the processes; and the automation of the whole production line is realized.

Description

technical field [0001] The invention relates to the technical field of wave-absorbing materials, in particular to a light-weight wave-absorbing anechoic chamber cone material and a preparation method thereof. Background technique [0002] The existing anechoic chamber cone materials are mainly polyurethane foam (sponge) impregnated with conductive carbon black slurry. In practical applications, in order to improve its flame retardant properties, inorganic binders and inorganic flame retardants are usually added Realization, this method leads to an increase in the density of the cone material in the absorbing chamber. When it needs to be hung on a vertical wall, it will deform and bend down due to its own weight, which will affect the normal use of the absorbing material. At the same time, the high density , The large volume leads to the self-heavy material of the anechoic chamber cone, which is not conducive to outdoor use and the scope of use is limited. In addition, becau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00
Inventor 张旭寇亚虎
Owner 西安安聚德纳米科技有限公司
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