Diamond-Polymer Heat-Dissipating Composition for Thermal-Electrical Balance
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Solution Overview
Problem
Conventional heat-dissipating materials struggle to simultaneously satisfy both electric insulativity and heat dissipativity, posing risks of abnormal actions and ignition due to conductive materials applied to unintended places in complex electronic components.
Innovation Solution
A heat-dissipating composition comprising a polymer matrix and diamond particles, optimized with specific particle sizes, shapes, and surface treatments to achieve high thermal conductivity and electric insulation, along with controlled void fractions and volume resistivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional thermally conductive fillers (alumina, magnesium oxide, boron nitride, zinc oxide, aluminum) are used, then heat dissipativity is improved, but electric insulativity deteriorates or cannot be satisfied simultaneously
Solution Approach 1:
The invention changes the material parameter from conventional fillers to diamond particles, which possess inherently high thermal conductivity and electrical insulation properties. This parameter change allows simultaneous satisfaction of both heat dissipativity and electric insulativity without compromising either property
Solution Approach 2:
The invention creates a composite material system consisting of diamond particles dispersed in a polymer matrix. This composite structure combines the high thermal conductivity of diamond with the electrical insulation and flexibility of the polymer, achieving both heat dissipativity and electric insulativity simultaneously
2Temperature
If electrically conductive materials are applied to complex electronic components, then heat dissipativity is improved, but manufacturing precision deteriorates due to difficult precise application
Solution Approach 1:
The invention changes the physical state and rheological parameters of the heat-dissipating material from paste form to a formable composition with controlled viscosity and processing characteristics. This enables precise application to complex electronic component shapes while maintaining high thermal conductivity through diamond particle reinforcement
3Reliability
If diamond particles are used as thermally conductive filler, then heat dissipativity and electric insulativity are simultaneously improved, but manufacturing complexity increases due to particle size and surface treatment requirements
Solution Approach 1:
The invention optimizes particle size parameters to 0.1-200 μm range and controls surface oxygen content at 5% or more, which simplifies processing while maintaining performance. These parameter optimizations balance manufacturing ease with functional requirements
Solution Approach 2:
The invention controls void fraction at 3% or lower through optimized particle packing and surface treatment, creating a dense composite structure that enhances thermal conductivity while maintaining electrical insulation. The controlled porosity approach simplifies manufacturing by reducing defects
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 composition effectively dissipates heat while maintaining electrical insulation, preventing abnormal actions and enhancing thermal stability, with improved thermal resistance and dielectric breakdown voltage.
Implementation Method 1
a heat-dissipating composition comprising a polymer matrix and diamond particles
Implementation Method 2
simultaneous satisfaction of electric insulativity and heat dissipativity
Data Source
AI summary
The heat-dissipating composition according to the present invention comprises a polymer matrix and diamond particles. The present invention provides the heat-dissipating composition compatibly satisfying both electric insulativity and heat dissipativity.