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

Self-healing material

Inactive Publication Date: 2015-06-11
PEN
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is about using a vinyl ester resin and a methyl ethyl ketone peroxide catalyst to create a self-healing material system for FRP composites. This system has several advantages, including that it can increase the service life of the panel and recover performance quickly after initial damage. The viscosity of the resin and the catalyst is very low, making it easy to fill hollow fibers or microcapsules with them. Overall, this technology can improve the durability and performance of FRP composites.

Problems solved by technology

However, their use is limited due to the difficulty in damage detection and repair, as well as lack of extended fatigue and impact resistance.
Achievements in the field of self-healing polymers and polymer composites are far from satisfactory.

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
  • Self-healing material
  • Self-healing material
  • Self-healing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012]The inventors discovered that a vinyl ester resin and a methyl ethyl ketone peroxide (“MEKP”) catalyst can serve well as a self-healing material system for FRP composites due, at least in part, to the following advantages:

[0013]1. The vinyl ester can be cured at room temperature when contacted or mixed with a MEKP catalyst.

[0014]2. The viscosity of both the vinyl ester resin and the MEKP catalyst is very low (<2,000 centipoises), which allows hollow glass fibers or microcapsules to be easily filled with each.

[0015]It was found that the vinyl ester resin / MEKP catalyst self-healing system can increase the service life of the panel and recover performance soon after initial damage.

[0016]According to aspects of the present invention, an example is hereinafter described,

[0017]Part I. Base materials

[0018]1. Self-Healing Agent:

[0019]A vinyl ester resin (e.g., product designation Derakane 411-350) was commercially obtained from Ashland, Inc. The MEKP catalyst was commercially obtained...

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
Viscosityaaaaaaaaaa
Temperatureaaaaaaaaaa
Login to View More

Abstract

A glass fiber-reinforced polymer composite includes a polymer matrix, a plurality of glass fibers embedded within the polymer matrix, a first hollow glass fiber containing a resin embedded within the polymer matrix, a second hollow glass fiber containing a catalyst suitable for curing the resin embedded within the polymer matrix. When damage occurs to such a composite, the glass fibers containing the resin and the catalyst are ruptured, resulting in their mixing together so that the resin is cured for repairing the ruptured location.

Description

[0001]This application claims priority to U.S. Provisional Patent Application Ser. No. 61 / 648,306, which is hereby incorporated by reference herein.BACKGROUND INFORMATION[0002]Composite materials are ideal for structural applications where high strength-to-weight and stiffness-to-weight ratios are important. Weight sensitive applications, such as construction, aircraft, and space vehicles, are primary consumers of composites, especially fiber-reinforced polymer matrix composites. However, their use is limited due to the difficulty in damage detection and repair, as well as lack of extended fatigue and impact resistance. One way to protect material degradation is through the incorporation of a self-healing ability.[0003]To date, there has been significant research in self-healing polymeric materials, and numerous studies, specifically in fiber-reinforced polymers. Polymer composites have been attractive candidates to introduce the autonomic healing concept into modern day engineering...

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): D06M15/507
CPCD06M2101/00D06M15/507C08J5/043C08J2363/00C08J5/08C08J2331/00Y10T442/2934Y10T442/2951Y10T442/2992C08J5/249C08J5/248
Inventor MAO, DONGSHENGFINK, RICHARD LEEYANIV, ZVI
Owner PEN
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