Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Silica gel composite material with high heat conductivity coefficient and excellent electromagnetic shielding performance

A composite material, electromagnetic shielding technology, applied in the direction of climate sustainability, sustainable manufacturing/processing, chemical industry, etc., can solve the problems of insufficient performance, high thermal conductivity cannot have electromagnetic shielding performance, etc., and achieve good electromagnetic shielding performance , The effect of good out-of-plane thermal conductivity

Active Publication Date: 2020-04-17
东莞市奥博特导热科技有限公司
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing silica gel composite materials cannot have excellent electromagnetic shielding performance while having high thermal conductivity, and their performance cannot meet actual needs

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
  • Silica gel composite material with high heat conductivity coefficient and excellent electromagnetic shielding performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A silica gel composite material with high thermal conductivity and excellent electromagnetic shielding performance, the composition of the silica gel composite material is as follows:

[0027] MXene material 1-3g;

[0028] h-BN material 3-5g;

[0029] Single-layer graphene powder 0.5-1.5g;

[0030] Urea 20-50g;

[0031] Silica gel 10-45g;

[0032] Wherein the MXene material has the functions of electromagnetic shielding, heat conduction, and charge conduction; the h-BN material has the functions of insulation, coating, isolation of MXene, graphene nanosheets and heat conduction; the graphene has the functions of electromagnetic shielding , the function of heat conduction; the urea is an intercalation stripping reagent, which also has the function of modifying the surface of the two-dimensional material;

[0033] The MXene material, h-BN material, and graphene are used as fillers. After the fillers are stripped by urea molecules under the condition of plasma ball mil...

Embodiment 2

[0037] A silica gel composite material with high thermal conductivity and excellent electromagnetic shielding performance, the filler concentration is controlled at a ratio of 20wt%, and the specific components of the silica gel composite material are as follows: MXene material 1g; h-BN material 3g; graphene 1g; urea 25g ; Silica gel 20g.

[0038] The MXene material, the h-BN material, and the graphene were stripped with urea and mixed by ball milling to prepare fillers, which were then dispersed in silica gel, and samples were taken for testing B.

Embodiment 3

[0040] A silica gel composite material with high thermal conductivity and excellent electromagnetic shielding performance, the filler concentration is controlled at a ratio of 30wt%, and the specific components of the silica gel composite material are as follows: MXene material 1g; h-BN material 3g; graphene 1g; urea 25g ;Silicone 12g.

[0041] The MXene material, the h-BN material, and the graphene were all stripped with urea and mixed by ball milling to prepare fillers, which were then dispersed in silica gel, and samples were taken for testing C.

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

No PUM Login to View More

Abstract

The invention discloses a silica gel composite material with high heat conductivity coefficient and excellent electromagnetic shielding performance. The silica gel composite material comprises the following components: 1 to 3 g of an MXene material, 3 to 5 g of an h-BN material, 0.5 to 1.5 g of single-layer graphene powder, 20 to 50 g of urea, and 10 to 45 g of silica gel, wherein the MXene material has the effects of electromagnetic shielding, heat conduction and charge conduction; the h-BN material has the effects of insulation, isolation of MXene and graphene nanosheets and heat conduction;the graphene has the effects of electromagnetic shielding and heat conduction; the urea is a ball milling agent and has the effect of modifying the surface of a two-dimensional material. By taking the MXene material, the h-BN material and the single-layer graphene powder as fillers, urea molecules are stripped and mixed under the condition of plasma ball milling to prepare a composite filler, andthe composite filler is dispersed in silica gel to obtain the silica gel-based composite material.

Description

technical field [0001] The invention relates to the technical field of composite materials, and more specifically relates to a silica gel composite material with high thermal conductivity and excellent electromagnetic shielding performance. Background technique [0002] Thermal conductivity, that is, thermal conductivity refers to the ability of a material to conduct heat directly, or thermal conductivity. Thermal conductivity is defined as the heat directly conducted by a material with unit cross-section and length under unit temperature difference and unit time. The unit of thermal conductivity is watt-meter -1 Kelvin -1 . Thermal conductivity, where is the cross-sectional area of ​​the heat conductor, is the heat conduction per unit time, is the thickness of the heat conductor between the two heat sources, and is the temperature difference. [0003] Shielding is one of the important measures to improve the electromagnetic compatibility of electronic systems and electr...

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
IPC IPC(8): C08L83/04C08K3/38C08K3/04C08K5/21C08K3/00C08K9/04
CPCC08K3/38C08K3/042C08K5/21C08K3/00C08K9/04C08K2201/011C08K2003/385C08L83/04Y02P20/10
Inventor 李鸿韬郭成
Owner 东莞市奥博特导热科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com