Metal Foam Polymer Composite Thermal Conductivity Impact Resistance
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Solution Overview
Problem
Existing composite materials with high thermal conductivity often compromise on impact resistance and processability due to the high amount of filler components required.
Innovation Solution
A composite material comprising a metal foam with a porosity of 10% to 99% and a polymer component, where the metal foam acts as a heat transfer network while the polymer component enhances processability and impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a large amount of filler components is applied to secure high thermal conductivity, then thermal conductivity is improved, but impact resistance deteriorates
Solution Approach 1:
The patent employs metal foam with controlled porosity (10% to 99%) as the thermal conductive filler. The porous structure reduces the density and hardness of the composite material compared to fully dense filler, thereby improving impact resistance while maintaining thermal conductivity through the metal framework. The polymer component fills the pores and provides additional toughness to the material.
Solution Approach 2:
The patent creates a composite material system consisting of metal foam (providing thermal conductivity) and polymer component (providing processability and impact resistance). This composite structure allows the materials to complement each other's properties, achieving high thermal conductivity without sacrificing mechanical performance. The synergistic combination resolves the contradiction between thermal performance and mechanical properties.
2Temperature
If a large amount of filler components is applied to secure high thermal conductivity, then thermal conductivity is improved, but processability deteriorates
Solution Approach 1:
The porous metal foam structure provides inherent processability advantages over dense filler materials. The foam structure is easier to handle, shape, and integrate into composite materials. The polymer component further enhances processability by providing flexibility in processing temperatures and methods, allowing for easier manufacturing compared to traditional high-filler composites.
Solution Approach 2:
The composite of metal foam and polymer creates a material with balanced properties for manufacturing. The polymer matrix provides ease of processing, molding, and finishing operations, while the metal foam provides the thermal functionality. This composite approach eliminates the processing difficulties associated with high-filler content materials.
3Temperature
If ceramic filler is used to achieve high thermal conductivity, then thermal conductivity is improved, but the material becomes hard and brittle
Solution Approach 1:
The patent changes the physical state and form of the thermal conductive material from traditional ceramic particles to metal foam with controlled porosity. This parameter change in the filler's physical structure fundamentally alters the composite's mechanical properties, providing both thermal conductivity and improved toughness compared to brittle ceramic fillers.
Solution Approach 2:
The patent uses a composite system where metal foam provides thermal conductivity and polymer provides toughness and ductility. This combination replaces the brittle ceramic-filler-composite approach with a more ductile system that maintains thermal performance while significantly improving impact resistance and overall mechanical toughness.
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 material achieves excellent thermal conductivity while maintaining stable impact resistance and processability, even with a smaller amount of metal foam, thus addressing the limitations of previous materials.
Implementation Method 1
a material capable of effectively controlling such heat is required... ceramic materials having good thermal conductivity... metal foam having a porosity of 10% to 99%... high thermal conductivity
Data Source
Figure 1~2
AI summary
The present application can provide a composite material which comprises a metal foam and a polymer component and has other excellent physical properties such as impact resistance, processability and insulation properties while having excellent thermal conductivity.