Carbon Nanostructure Composite for Far-Infrared and Antibacterial Performance

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Solution Overview

Problem

Current methods for preparing graphene for use in macromolecular materials require pre-modification and high purity, which complicates its integration and reduces efficiency in achieving desired properties such as far-infrared and antibacterial effects.

Innovation Solution

A composite comprising graphene, amorphous carbon, and non-carbon non-oxygen elements like Fe, Si, and Al, in specific weight percentages, is developed, allowing for excellent far-infrared and antibacterial performance without the need for pre-treatment or high purity graphene, using a process involving biomass carbon sources and controlled thermal treatment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If graphene is pre-modified or activated to improve binding with macromolecular material, then the binding performance is improved, but the process complexity and preparation time increase

Engineering Contradiction:
Improvebinding performanceVSAvoidprocess complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention incorporates non-carbon non-oxygen elements (Fe, Si, Al) during the graphene synthesis process itself, performing the modification action in advance rather than requiring separate pre-treatment steps. This preliminary incorporation of functional elements during synthesis achieves the binding enhancement without adding subsequent complex modification procedures.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention combines the graphene synthesis process with the incorporation of non-carbon non-oxygen elements into a single integrated process. Instead of separately synthesizing graphene and then modifying it, the functional elements are incorporated during the carbonization and graphitization stages, merging two operations into one efficient process.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If high purity graphene is used to achieve desired performance, then the performance is improved, but the manufacturing cost and process complexity increase

Engineering Contradiction:
ImproveperformanceVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The invention changes the compositional parameters of graphene by intentionally incorporating non-carbon non-oxygen elements (Fe, Si, Al) in specific amounts (0.5-6 wt%). This parameter change transforms the material from requiring high purity to benefiting from controlled impurity content, achieving performance enhancement through compositional optimization rather than purity maximization.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention creates a composite carbon structure where graphene is combined with non-carbon non-oxygen elements during synthesis. This composite approach leverages the synergistic effects of carbon and other elements to achieve desired performance without requiring high-purity graphene, thereby reducing manufacturing costs and process complexity.

Inventive Principle:
Principle #40Composite materials

3Reliability

If pre-modification treatment is applied to graphene before integration, then the functional performance is improved, but the productivity and integration efficiency decrease

Engineering Contradiction:
Improvefunctional performanceVSAvoidintegration efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The functional elements are incorporated during the synthesis stage rather than requiring pre-modification before integration. This preliminary action during synthesis eliminates subsequent pre-treatment steps, directly improving integration efficiency while maintaining functional performance.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The non-carbon non-oxygen elements incorporated during synthesis provide multiple functions simultaneously: they enhance binding with macromolecular materials, improve far-infrared performance, and provide antibacterial effects. This multi-functionality achieves comprehensive performance enhancement without requiring separate pre-modification treatments for different functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The composite achieves notable far-infrared detection normal emissivity and antibacterial rates without pre-modification, overcoming the limitations of prior methods by simplifying the integration process and enhancing performance.

Implementation Method 1

the composite has excellent far-infrared effect

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 2

antibacterial and bacteriostatic effects

Methodology Applied
Scientific EffectAntibacterial effect:

Data Source

PatentUS10836640B2Composite containing carbon nanostructure, high molecular material using same and preparation method
Publication Date: 2020.11.17 JINAN SHENGQUAN GRP SHARE HLDG CO LTD
  • US10836640B2 patent drawing
  • US10836640B2 patent drawing

AI summary

The present invention relates to a composite having a carbon nanostructure, comprising graphene, amorphous carbon and a non-carbon non-oxygen element, wherein the non-carbon non-oxygen element is in an amount of 0.5 wt %-6 wt % of the composite. The present invention discloses controlling the content of the non-carbon non-oxygen element in the composite to obtain excellent far-infrared effect and antibacterial and bacteriostatic effects, wherein the normal emissivity in the far-infrared performance reaches 0.85 or more, and the antibacterial rate reaches 95% or more. The composite having a carbon nanostructure of the present invention is applied to macromolecular materials to modify macromolecular materials under the circumstance that the addition amount is relatively low. The composite having a carbon nanostructure can achieve notable far-infrared performance and antibacterial and bactericidal performances without any pre-modification and activation treatment.