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

Preparation method of graphene-modified epoxy resin composite material

A graphene modification, epoxy resin technology, applied in the field of graphene, can solve the problems of sharp dispersion, difficult to accept in the industrial field, polluting the environment, etc.

Active Publication Date: 2017-08-04
山东金城石墨烯科技有限公司
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Graphene has strong hydrophobicity. In the past, when compounding with epoxy resin and other polymer matrices, most of them were prepared by organic solvent transfer method. This method pollutes the environment and is difficult to be accepted by the industrial field. Material reinforcement, because the high surface energy and nanostructure of graphene make its dispersion in the epoxy resin matrix more acute, and the cost performance of using graphene alone as an additive is also difficult to be accepted by the industry

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
  • Preparation method of graphene-modified epoxy resin composite material
  • Preparation method of graphene-modified epoxy resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weighing graphene, carbon nanotubes, and carbon black are 0.068g, 0.0g, and 0.0g respectively, and weigh 160.0g of epoxy resin and 136.0g of curing agent. The total amount of the three carbon nanomaterials in epoxy resin The mass fraction is 0.05wt%, and the ratio of curing agent to epoxy resin is 0.85 / 1. Pour the weighed oxygen content range of 20% to 35% graphene oxide aqueous solution (concentration is 0.1%) into the three-necked flask, and then pour the weighed epoxy resin into the three-necked flask. Mechanical decompression stirring at 50℃ / -0.3MPa for 90min, mechanical decompression stirring at 70℃ / -0.3MPa for 3h, mechanical decompression stirring at 80℃ / -0.25MPa for 3h, mechanical decompression stirring at 90℃ / -0.15MPa Stir under reduced pressure for 3 hours. At this time, the water in the composite slurry has been distilled. The detection method is to compare the water distilled with the volume of the initially added graphene oxide aqueous solution in the conica...

Embodiment 2

[0022] Weighing graphene, carbon nanotubes, and carbon black were 0.23g, 0.11g, and 0.46g respectively, and weighed 160.0g of epoxy resin and 136.0g of curing agent. The total amount of the three carbon nanomaterials in epoxy resin The mass fraction is 0.5wt%, and the ratio of curing agent to epoxy resin is 0.85 / 1. Pour the weighed oxygen content range of 20% to 35% graphene oxide aqueous solution (concentration is 0.1%) into the three-necked flask, and then pour the weighed epoxy resin into the three-necked flask. Mechanical decompression stirring at 50℃ / -0.3MPa for 90min, mechanical decompression stirring at 70℃ / -0.3MPa for 3h, mechanical decompression stirring at 80℃ / -0.25MPa for 3h, mechanical decompression stirring at 90℃ / -0.15MPa Stir under reduced pressure for 3 hours. At this time, the water in the composite slurry has been distilled. The detection method is to compare the water distilled with the volume of the initially added graphene oxide aqueous solution in the con...

Embodiment 3

[0025] Weighing graphene, carbon nanotubes, and carbon black are 0.02g, 0.02g, and 0.04g respectively, and weigh 160.0g of epoxy resin and 136.0g of curing agent. The total amount of the three carbon nanomaterials in epoxy resin The mass fraction is 0.05wt%, and the ratio of curing agent to epoxy resin is 0.85 / 1. Pour the weighed oxygen content range of 20% to 35% graphene oxide aqueous solution (concentration is 0.1%) into the three-necked flask, and then pour the weighed epoxy resin into the three-necked flask. Mechanical decompression stirring at 50℃ / -0.3MPa for 90min, mechanical decompression stirring at 70℃ / -0.3MPa for 3h, mechanical decompression stirring at 80℃ / -0.25MPa for 3h, mechanical decompression stirring at 90℃ / -0.15MPa Stir under reduced pressure for 3 hours. At this time, the water in the composite slurry has been distilled. The detection method is to compare the water distilled with the volume of the initially added graphene oxide aqueous solution in the conic...

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 preparation method of a graphene-modified epoxy resin composite material. A multidimensional carbon nanometer filler employing a graphene two-dimensional material as a main material is adopted; when three nano fillers of graphene / a carbon nano tube / carbon black account for 0.5wt% of total mass fraction of epoxy resin and the addition ratio of the graphene / carbon nano tube / carbon black is 1 / 0.5 / 2, the compression strength of the prepared composite epoxy resin material is improved by 67% in comparison with that of an unmodified epoxy resin material, the bending strength is improved by 68%, the Rockwell hardness is improved by 12%, the heat distortion temperature is increased by 15.5 DEG C, and meanwhile, the chemical stability of the material is strengthened, especially the chemical protection characteristic on dichloromethane and trichloromethane is strengthened.

Description

technical field [0001] The invention belongs to the field of graphene, in particular to a method for preparing a graphene-modified epoxy resin composite material. Background technique [0002] With the rapid development of technology and economy in today's world and the increasingly stringent requirements of human beings on the living environment, the application requirements of high-performance lightweight composite materials are becoming more and more extensive and in-depth. For composite materials, the material structure will determine the final material performance, and the design of the material structure must fully integrate the current technology and industrial strategy. More importantly, how to prepare composite materials in a green and efficient manner has become an obstacle to the development of composite materials. main factor of development. [0003] Carbon black is a zero-dimensional carbon material with a high degree of freedom in the matrix of composite mater...

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): C08L63/00C08K9/02C08K9/00C08K3/04C08K7/24C08J3/28
Inventor 宋亚滨郑庚修曲良体张忠政张敏胡凯磊牟应科
Owner 山东金城石墨烯科技有限公司
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