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

Shell-imitated light-weight high-strength composite material and preparation method thereof

A high-strength composite material and imitation shell technology, which is applied in the field of composite material preparation, can solve the problems of limiting bending strength and limiting mechanical properties, and achieve high bending mechanical properties, simple operation, excellent fracture toughness and impact resistance.

Active Publication Date: 2021-01-26
BEIHANG UNIV
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that graphene oxide nanosheets have super flexibility, which limits the improvement of the mechanical properties of the final GO-based 3D bulk material, especially the improvement of its bending strength, fracture toughness and rigidity.

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
  • Shell-imitated light-weight high-strength composite material and preparation method thereof
  • Shell-imitated light-weight high-strength composite material and preparation method thereof
  • Shell-imitated light-weight high-strength composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] It should be noted that since the graphene oxide material is prepared according to the modified Hummer method reported in the literature, its preparation process will not be repeated in the following specific examples.

[0054] (1) Accurately weigh 500 mg of pre-prepared graphene oxide powder, dissolve it in 500 mL of deionized water and stir for 2 hours, and then undergo ultrasonic dispersion for 1 min to obtain a uniformly dispersed 1 mg / mL colloidal graphene oxide (GO) solution;

[0055] Accurately weigh 1.5g of sodium alg...

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
Thicknessaaaaaaaaaa
Ultimate flexural strengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of composite material preparation, and relates to a preparation method of a shell-like light-weight high-strength composite material, which comprises the following steps: (1) taking a leaf-shaped amorphous crystal heterogeneous manganese dioxide nanosheet prepared by an oxidation-reduction method and graphene oxide obtained by a Hummers oxidation methodas main construction units, and combining with a small amount of biomacromolecules, preparing a high-strength composite film material through an evaporation-induced self-assembly method; and (2) a large number of composite film materials are assembled into a whole through layer-by-layer brushing of a cross-linking agent, and the light high-strength block layered micro-nano composite material is obtained in combination with a hot-pressing process. The preparation process is simple and convenient to operate, the process is green and environmentally friendly, and the strength of the finally prepared block composite material is far superior to that of most other graphene oxide-based block composite materials.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, and more specifically relates to the preparation of a three-dimensional shell-like lightweight high-strength composite material with high bending strength and toughness. Background technique [0002] Bulk lightweight structural materials with high load-carrying capacity and three-dimensional (3D) bulk have attracted the attention of researchers due to their wide applications in fields such as engineering construction, aerospace, etc. Graphene oxide (GO), as a two-dimensional ultrathin graphite material, has been widely considered as an ideal material for assembling GO substrates due to its good water solubility, excellent mechanical properties and abundant surface functional groups. The micro-nano basic building blocks of materials. However, the preparation of GO-based bulk structural materials with large scale and high mechanical properties is still a challenge. This is ...

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): C08J7/12C08J7/14C08J5/18C08L89/00C08L5/04C08K7/00C08K3/22C08K3/04
CPCC08J5/18C08J7/12C08J7/14C08J2305/04C08J2389/00C08K3/22C08K7/00C08K2003/2262C08K2201/011C08K3/042
Inventor 郭林唐旭科陈科
Owner BEIHANG UNIV
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