Nano-Sol Coating Composition for Corrosion Resistance
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Solution Overview
Problem
Miniaturization of electronic devices leads to increased vulnerability to corrosion due to close component spacing and exposure to exterior chemicals, resulting in electrical component failures, necessitating a protective insulating coating with excellent electrical, thermal, and mechanical properties.
Innovation Solution
A coating composition comprising a curable polymer, a curative, silica or metal oxide nanoparticles, and organic titanate, which forms a crosslinked film with improved adhesion and corrosion resistance when cured, suitable for various electronic and engineering systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electronic devices are miniaturized with close component spacing, then device capacity and integration increase, but corrosion resistance and reliability deteriorate
Solution Approach 1:
The patent applies composite materials by combining organic polymer matrices with inorganic nanoparticles (silica, metal oxides) to create a hybrid coating system. This composite structure provides both the flexibility and adhesion of organic materials and the hardness, chemical inertness, and corrosion resistance of inorganic materials, thereby protecting miniaturized electronic components while maintaining device capacity
Solution Approach 2:
The patent changes the physical and chemical parameters of the coating by controlling nanoparticle size (0.1-100 nm), composition ratios, and cross-linking density. These parameter changes optimize the coating's permeability, adhesion, and barrier properties to prevent corrosion while accommodating the miniaturized device structure
2Reliability
If a protective coating is applied to prevent corrosion, then corrosion resistance and electrical insulation improve, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by incorporating all necessary functional components (nanoparticles, polymers, cross-linking agents, catalysts) into a pre-formulated coating composition before application. This eliminates the need for multiple separate processing steps during manufacturing, as the coating can be applied in a single step and then cured to achieve the protective function
Solution Approach 2:
The patent uses organic polymers and coupling agents as intermediaries between the inorganic nanoparticles and the substrate. These intermediary materials facilitate adhesion, ensure uniform distribution of nanoparticles, and simplify the application process by providing a ready-to-use coating formulation that requires minimal additional processing
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 coating composition provides effective electrical insulation, corrosion resistance, and mechanical toughness, extending the operational life of electronic devices and protecting systems like aircraft and naval vessels from environmental damage.
Implementation Method 1
a curable polymer comprising at least one functional group for forming cross-linking structures, a curative configured to react with the at least one functional group in the curable polymer
Implementation Method 2
The organic titanate, which catalyzes the curing of the composition
Implementation Method 3
The hydroxyl groups in the polymer may react and crosslink with the hydroxyl group on the surface of nanoparticles
Data Source
AI summary
A coating composition for forming an electrically insulating film, a method of making the coating composition, and the cured coating composition are provided. The coating composition includes a curable polymer comprising at least one functional group for forming cross-linking structures, a curative configured to react with the at least one functional group in the curable polymer, a sol comprising silica or metal oxide nanoparticles having a particle diameter in a range of from about 0.1 nm to about 100 nm, an organic titanate, and optionally at least one solvent or diluent. The resulting cured coating or paint provides good insulation, coverage, adhesion, toughness, and corrosion resistance.