Check patentability & draft patents in minutes with Patsnap Eureka AI!

A wave-absorbing honeycomb and its preparation method

A technology of honeycomb and glue, which is applied in the direction of inorganic compound addition, textile and paper making, and fiber raw material processing. It can solve the problems of narrow absorption frequency, inability to meet the needs of wave-absorbing materials, and high density, and achieve the effect of improving wave-absorbing performance.

Active Publication Date: 2018-01-16
ARAMICORE COMPOSITE
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main disadvantages of traditional absorbing materials (ferrite, graphite, ceramics) are high density and narrow absorption frequency, so they cannot meet the requirements of absorbing materials: thin, light, wide and strong

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A wave-absorbing honeycomb and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of absorbing honeycomb:

[0025] 1) Preparation of graphene oxide: Take 100 parts of expanded graphite with a size of 50-300 mesh, add 200 parts of sodium chloride and grind for 30 minutes, then wash with deionized water to remove sodium chloride; add 1000 parts of deionized water, and stir ultrasonically 30min, the ultrasonic power is 700W, then add 300 parts of benzoyl peroxide to it, seal the container and ultrasonic for 2 hours, filter once with filter paper with larger pores, discard the filter residue, choose fine-pore filter paper or centrifuge to obtain the filtrate Graphene oxide spare.

[0026] 2) Preparation of wave-absorbing glue:

[0027] Solution A preparation: Dissolve 1 part of graphene oxide in 50 parts of ethanol-water mixed solvent, and mix uniformly to obtain A solution; wherein the parts by weight of ethanol in the ethanol aqueous solution are 40 parts;

[0028] Preparation of solution B: Dissolve 15 parts of phenolic resin an...

Embodiment 2

[0039] A preparation method of absorbing honeycomb:

[0040] 1) Preparation of graphene oxide: Take 100 parts of expanded graphite with a size of 50-300 mesh, add 200 parts of sodium chloride and grind for 30 minutes, then wash away potassium chloride with deionized water; add 1000 parts of deionized water, and stir ultrasonically 30min, the ultrasonic power is 700W, then add 300 parts of potassium persulfate to it, seal the container and ultrasonic for 2 hours, filter once with filter paper with larger pores, discard the filter residue, and use fine-pore filter paper or centrifugal separation as the filtrate to obtain graphite oxide Alkene spare.

[0041] 2) Preparation of wave-absorbing glue:

[0042] Solution A preparation: Dissolve 10 parts of graphene oxide in 300 parts of ethyl acetate water mixed solvent, and mix uniformly to obtain A solution; wherein the parts by weight of ethyl acetate in the ethyl acetate aqueous solution is 280 parts;

[0043] Solution B preparat...

Embodiment 3

[0053] A preparation method of absorbing honeycomb:

[0054]1) Preparation of graphene oxide: Take 100 parts of expanded graphite with a size of 50-300 mesh, add 200 parts of sodium chloride and grind for 30 minutes, then wash with deionized water to remove sodium chloride; add 1000 parts of deionized water, and stir ultrasonically 30min, the ultrasonic power is 700W, then add 300 parts of benzoyl peroxide to it, seal the container and ultrasonic for 2 hours, filter once with filter paper with larger pores, discard the filter residue, choose fine-pore filter paper or centrifuge to obtain the filtrate Graphene oxide spare.

[0055] 2) Preparation of wave-absorbing glue:

[0056] Preparation of A solution: Dissolve 5 parts of graphene oxide in 100 parts of n-hexane water mixed solvent, and mix uniformly to obtain A solution; wherein the weight parts of n-hexane in the n-hexane aqueous solution is 80 parts;

[0057] Solution B preparation: dissolve 50 parts of polyurethane resi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
densityaaaaaaaaaa
electrical conductivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a wave-absorbing honeycomb. The preparation method includes raw material paper gluing, lamination, hot pressing, trimming, stretching, and dipping and curing. During the dipping and curing, the dipping is performed at least twice, and the last dipping uses graphene oxide wave-absorbing glue Impregnation; the graphene oxide absorbing glue contains the following raw materials: graphene oxide, resin, solvent and additive; the additive is ferric oxide, nickel powder, zinc oxide, titanium dioxide, silicon carbide or barium titanate one or more of . Compared with graphene, the graphene oxide selected in the present invention has better dispersibility and can be better dispersed in the resin matrix. The combined use of graphene oxide and additives can efficiently realize the microwave absorption performance of the final product promote.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a wave-absorbing honeycomb and a preparation method thereof. Background technique [0002] Honeycomb core material is a kind of composite material core material prepared by the principle of bionics. Its appearance is similar to natural honeycomb. It can reduce the weight of the material to the greatest extent while ensuring the strength. It is a new type of high-light, high-strength Materials are currently widely used in aerospace, boats, high-speed rail and other fields. [0003] With the development of contemporary electronic information technology, problems such as electromagnetic pollution, electromagnetic interference, and leaks caused by electromagnetic radiation have attracted widespread attention. Especially in the aerospace and military fields, the shielding and absorption of electromagnetic waves has become an important consideration for material ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/00D21H17/63D21H17/67D21H17/68
Inventor 隋广中孙达杨虹赵海涛王金明
Owner ARAMICORE COMPOSITE
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com