Fluoroelastomer Nanocomposites with CNT and INF Fillers
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Solution Overview
Problem
Conventional electrophotographic fuser materials, such as VITON fluoroelastomers, suffer from insufficient mechanical strength and low wear resistance, necessitating improved mechanical robustness and surface heat transfer for extended fuser lifetime and reduced energy consumption.
Innovation Solution
A nanocomposite material comprising carbon nanotubes (CNTs) and inorganic nano-fillers (INFs) dispersed in a fluoroelastomer matrix, with controlled concentrations to enhance thermal conductivity, mechanical strength, and wear resistance, applied as a coating layer in a fuser member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If VITON fluoroelastomers are used as fuser materials, then mechanical flexibility and shock energy absorption are improved, but mechanical strength and wear resistance deteriorate
Solution Approach 1:
The patent applies composite materials by combining fluoroelastomer matrix with carbon nanotubes and inorganic nano-fillers to create a nanocomposite material that exhibits both the flexibility of the polymer matrix and the enhanced mechanical strength and wear resistance of the reinforced fillers, thereby resolving the contradiction between flexibility and mechanical durability
2Temperature
If conventional fuser materials are used, then ease of manufacture is maintained, but surface heat transfer and heat uniformity deteriorate
Solution Approach 1:
The patent applies parameter changes by modifying the thermal conductivity parameter of the fuser material through the addition of carbon nanotubes and inorganic nano-fillers, which have high thermal conductivity, thereby improving surface heat transfer and reducing energy consumption while maintaining manufacturability
3Strength
If filler concentrations are increased to improve mechanical strength, then mechanical robustness is improved, but processing difficulty and dispersion uniformity worsen
Solution Approach 1:
The patent applies parameter changes by optimizing the concentration parameters of carbon nanotubes and inorganic nano-fillers within specific ranges (0.1-25 wt% and 1-80 wt% respectively) to achieve adequate mechanical reinforcement while maintaining processability and uniform dispersion, avoiding the processing difficulties associated with excessive filler loading
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 nanocomposite material provides improved thermal conductivity, mechanical properties, and wear resistance, extending fuser lifetime and reducing energy consumption while maintaining mechanical strength and surface heat uniformity.
Implementation Method 1
The plurality of INFs can be present in an amount ranging from about 2% to about 50% by weight of the total nanocomposite material to provide the nanocomposite material with a thermal conductivity of about 0.2 W/m·K to about 4 W/m·K
Implementation Method 2
A nanocomposite material comprising carbon nanotubes (CNTs) and inorganic nano-fillers (INFs) dispersed in a fluoroelastomer matrix, with controlled concentrations to enhance thermal conductivity, mechanical strength, and wear resistance
Data Source
AI summary
Exemplary embodiments provide materials and methods for a nanocomposite material and a fuser member containing the nanocomposite material in a fusing system, wherein the nanocomposite material can contain a plurality of carbon nanotubes (CNTs) and a plurality of inorganic nano-fillers (INFs) disposed in a polymer matrix to provide the nanocomposite material with desirable properties.