Conductive epoxy resin for modified carbon fiber composite laminated board

A technology of conductive epoxy resin and fiber composite material, applied in the field of conductive epoxy resin material and preparation, can solve the problems of structural mechanical properties decline, fiber breakage, etc., and achieve the effect of improving electrical conductivity and mechanical properties

Active Publication Date: 2019-01-11
AIR FORCE UNIV PLA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductivity of carbon fiber/epoxy resin composite laminates is mainly determined by carbon fibers with high conductivity, while the resin matrix that plays a role in wrapping and supporting is insulated and non-conductive, making the conductivity of carbon fiber composites far from that

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
  • Conductive epoxy resin for modified carbon fiber composite laminated board
  • Conductive epoxy resin for modified carbon fiber composite laminated board
  • Conductive epoxy resin for modified carbon fiber composite laminated board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The technical solution and preparation process of the present invention will be described in detail below in conjunction with specific examples.

[0032] Table 1 prepares the main raw material of conductive epoxy resin

[0033]

[0034] Preparation and testing instruments used in the experiment of preparing conductive epoxy resin in table 2

[0035]

[0036] Its raw material ratio of modified conductive epoxy resin comprises by mass percentage:

[0037]

[0038]

[0039] Preferred raw material formula is by mass percent:

[0040]

[0041] making process

[0042] a. Carbon nanotube treatment

[0043] Take a certain amount of carbon nanotubes and dry them at 70-90°C; accurately weigh the carbon nanotubes after drying to the required gram weight, and add ethylene glycol ether to dissolve them; Disperse for 1.5-3 hours. It is preferably dried at 80°C, ultrasonic frequency is 80Hz, and ultrasonic time is 2h.

[0044] b. Preparation of epoxy resin

[004...

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 relates to a conductive epoxy resin for a modified carbon fiber composite laminated board. The conductive epoxy resin comprises the following components: epoxy resin E-51, a carbon nanotube, diamino diphenyl sulfone (DDS), boron trifluoride ethylamine (BF3-400), Carbomer 941, glycol ether, a defoaming agent 5120 and conductive silver powder Ag-S1. In the conductive epoxy resin for the modified carbon fiber composite laminated board provided by the invention, the conductive silver powder is taken as the main conductive filler and the insulating epoxy resin is modified, so that the conductivity and the mechanical property can be promoted. The laminated board prepared from the conductive epoxy resin and the carbon fibers can be applied to the field of lightning protection.

Description

technical field [0001] The invention relates to a conductive epoxy resin material and a preparation method for modified carbon fiber composite material laminates. Background technique [0002] Lightning is a natural phenomenon in the atmosphere. When the electric field strength between the clouds or between the clouds and the bottom surface reaches the order of 1000kv / m, the atmosphere will be ionized to form a conductive plasma flow, thereby generating plasma that releases and neutralizes the charge The conductive channel of the body, the current on the channel is huge, and the temperature is extremely high, which makes the air flow expand instantly, producing bright and dazzling lightning and deafening thunder. Aircraft flying in thunderstorm weather, the possibility of being struck by lightning is unavoidable. According to statistics, there are no less than 100 incidents of lightning hitting airplanes every year. The conductivity of carbon fiber / epoxy resin composite lam...

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): C08L63/00C08L33/00C08K13/02C08K3/08C08K3/04
CPCC08K2003/0806C08K2201/001C08K2201/011C08L63/00C08L33/00C08K13/02C08K3/08C08K3/041
Inventor 肖尧李曙林常飞翟广坤王景平
Owner AIR FORCE UNIV PLA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap