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

A method for repairing glare laminates by using modified adhesive

An adhesive and modification technology, which is applied in adhesive heating bonding methods, surface pretreatment bonding methods, adhesives, etc., can solve the problem that the improvement of interface bonding performance is not obvious and affects the construction process of adhesives Performance, adhesives are difficult to disperse evenly, etc., to achieve superior electrical conductivity, increase electrical conductivity, and increase mechanical properties

Active Publication Date: 2022-06-17
SHENYANG AEROSPACE UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding rigid carbon materials such as chopped fibers, carbon nanotubes, and graphene to the adhesive can effectively improve the mechanical strength of the adhesive layer; Interface cracks lead to insignificant improvement of interface bonding performance; in addition, the agglomeration benefit of nanomaterials makes it difficult to disperse uniformly in the adhesive, which affects the construction process performance of the adhesive

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 method for repairing glare laminates by using modified adhesive
  • A method for repairing glare laminates by using modified adhesive
  • A method for repairing glare laminates by using modified adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for bonding and repairing an epoxy resin adhesive modified by carbon nanotubes wrapped with chopped carbon fibers to a Glare laminate with impact damage, the implementation steps are as follows:

[0038] In order to implement this example, an intact Glare laminate is prepared first, and then a damaged Glare laminate is fabricated by simulating the damage of the Glare laminate. The specific operation method is as follows: first, the surface treatment of the aluminum plate is carried out by anodizing method, and then the glass fiber pre-injection material is sprayed with adhesive, cured by hot pressing, and processed into the required shape. After that, ultrasonic scanning non-destructive testing is performed on the processed specimens to detect whether there are defects that are invisible to the naked eye during the preparation and processing. A drop weight impact test was used to simulate impact damage to Glare laminates. The simulated damage is at the level o...

Embodiment 2

[0049] A method for bonding and repairing a Glare laminate with impact damage by a carbon nanotube-wrapped chopped composite carbon fiber-modified bismuth resin adhesive, the implementation steps are as follows:

[0050] In order to implement this example, an intact Glare laminate is prepared first, and then a damaged Glare laminate is fabricated by simulating the damage of the Glare laminate. The specific operation method is as follows: first, the surface treatment of the aluminum plate is carried out by anodizing method, and then the glass fiber pre-injection material is sprayed with adhesive, cured by hot pressing, and processed into the required shape. After that, ultrasonic scanning non-destructive testing is performed on the processed specimens to detect whether there are defects that are invisible to the naked eye during the preparation and processing. Through fatigue crack simulation, the damage of Glare laminate under cyclic loading is simulated, and the simulated dam...

Embodiment 3

[0060] A method for bonding and repairing a Glare laminate with impact damage by a phenolic resin adhesive modified by wrapping chopped composite carbon fibers with carbon nanotubes, the implementation steps are as follows:

[0061] In order to implement this example, an intact Glare laminate is prepared first, and then a damaged Glare laminate is fabricated by simulating the damage of the Glare laminate. The specific operation method is as follows: first, the surface treatment of the aluminum plate is carried out by anodizing method, and then the glass fiber pre-injection material is sprayed with adhesive, cured by hot pressing, and processed into the required shape. After that, ultrasonic scanning non-destructive testing is performed on the processed specimens to detect whether there are defects that are invisible to the naked eye during the preparation and processing. A drop weight impact test was used to simulate impact damage to Glare laminates. The simulated damage is a...

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 belongs to the repairing field of fiber metal laminated boards (Glare laminates), and in particular relates to a method for repairing Glare laminates by bonding a modified adhesive. The invention adopts a low-cost, low-consumption flame method to grow carbon nanotube layers on the surface of carbon fibers in situ to prepare composite carbon fibers wrapped by carbon nanotubes; and mix chopped composite carbon fibers into the adhesive in proportion to realize adhesive The bonding strength of the interface between the layer and the lightweight material and the enhancement of the body strength of the adhesive layer, thereby improving the bonding strength between the motherboard and the patch in the Glare laminate repair, to achieve a better repair effect; the patch used in the present invention The sheet and the motherboard are made of the same material, so that both have the same rigidity and have better compatibility. The method of the invention is simple and quick, and has extremely low cost, and has wide application prospects in the bonding fields of aerospace, transportation and other light materials.

Description

technical field [0001] The invention belongs to the field of repairing fiber metal laminates (Glare laminates), in particular to a method for repairing Glare laminates by bonding a chopped composite carbon fiber modified adhesive wrapped with a carbon nanotube layer. Background technique [0002] Glare laminate is a fiber-reinforced metal material alternately laminated by glass fiber and aluminum alloy. It is widely used due to its advantages of high specific strength, good fatigue resistance, high damage tolerance, and good environmental resistance. It is usually widely used in the manufacture of aircraft as lightweight structural parts. Therefore, repairing damaged Glare laminates is one of the essential technologies in the aviation industry. At this stage, the most widely used Glare laminate repair technology in the aviation field is mechanical repair and adhesive repair. Disadvantages of mechanical repair include stress concentration caused by drilling, and reduced re...

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): C09J5/02C09J5/04C09J5/06C09J11/04C09J163/00C09J179/08C09J161/06
CPCC09J5/02C09J5/04C09J5/06C09J11/04C09J163/00C09J179/085C09J161/06C09J2400/146C09J2400/166C08K9/02C08K9/10C08K7/06C08K3/041
Inventor 崔旭王道晟蒲永伟丛方林赵普熊需海孟庆实王朔李晓东张辰许鹏贺军李威
Owner SHENYANG AEROSPACE UNIVERSITY
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