Graphite Oxide Resin Dispersion for Thermal Radiation
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Solution Overview
Problem
Current high-dielectric or high thermal radiation resins face non-uniform dispersion issues due to the rapid aggregation and sedimentation of inorganic powders, which complicates subsequent processing and reduces thermal radiation efficiency.
Innovation Solution
Incorporating graphite oxide as a dispersant in a polyamideimide resin formulation to promote the dispersibility of inorganic powders, thereby deferring sedimentation and enhancing the uniformity and efficiency of thermal radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inorganic powder is added to high-dielectric or high thermal radiation resin, then dielectric constant and thermal radiation efficiency are improved, but non-uniform dispersion and rapid sedimentation occur
Solution Approach 1:
The patent introduces a dispersant as an intermediary substance to facilitate uniform distribution of inorganic powder particles within the resin matrix. The dispersant acts as a mediator between the inorganic powder and resin, preventing aggregation and maintaining homogeneous dispersion throughout the composite material.
Solution Approach 2:
The patent modifies physical parameters of the resin system by adjusting resin composition, viscosity, and adding specific dispersants to change the rheological properties. These parameter changes slow down sedimentation rates and maintain stable suspension of inorganic powder particles during processing and application.
2Reliability
If inorganic powder is added to high-dielectric or high thermal radiation resin, then thermal radiation efficiency is improved, but sedimentation occurs rapidly
Solution Approach 1:
The dispersant serves as a protective intermediary that adsorbs onto inorganic powder surfaces, creating a steric or electrostatic barrier that prevents particle settling. This intermediary layer maintains particle suspension and extends the stable service life of the resin composition.
Solution Approach 2:
The patent applies dispersants and adjusts resin formulation in advance to create a protective environment that cushions against gravitational settling. This preliminary protection measures prevent rapid sedimentation before it occurs, maintaining uniform distribution throughout the intended service period.
3Reliability
If phosphide and aluminum hydroxide are added as flame retardants, then fire rating is improved, but phosphor content must be reduced
Solution Approach 1:
The patent employs a composite flame retardant system combining phosphide and aluminum hydroxide in specific ratios. This composite approach leverages the synergistic effects of different flame retardant mechanisms, achieving UL-94 V0 fire rating while optimizing the quantity of phosphor content through balanced formulation.
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 use of graphite oxide as a dispersant in the resin formulation improves the stability and uniformity of the composite, maintaining a consistent dielectric constant and extending sedimentation time, allowing for more efficient thermal radiation and coating processes.
Implementation Method 1
graphite oxide as a dispersant to promote the dispersibility of inorganic powder
Implementation Method 2
deferring sedimentation and enhancing the uniformity and efficiency of thermal radiation
Data Source
AI summary
The present disclosure relates to a graphite oxide-containing resin formulation, including: 15-80 parts by weight of a polyamideimide precursor, 0.01-10 parts by weight of a graphite oxide as a dispersant, 10-400 parts by weight of an inorganic powder, and 20-350 parts by weight of a solvent.