Plasma-Activated Polysiloxane Coating for Substrate Adhesion
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Solution Overview
Problem
Existing corrosion protection methods for metallic and non-metallic substrates often fail to provide durable, high-quality coatings with excellent adhesion and corrosion resistance, especially on complex geometries, leading to issues like infiltration and flaking upon mechanical damage, and require excessive material and effort for mass production.
Innovation Solution
A method involving a multi-step process using plasma treatment, organic silicone compounds, and metal layers deposited via vacuum or sputter technology, with optional primer and cover layers, to create a polysiloxane-based coating system that enhances adhesion and corrosion protection while reducing material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If material deposition is increased to improve corrosion protection and surface quality, then corrosion resistance and surface appearance are improved, but material consumption, processing time, and costs increase
Solution Approach 1:
The patent applies plasma treatment to modify surface parameters (energy, wettability, adhesion) before coating, enabling effective corrosion protection at reduced material thickness. This changes the surface state to accept coatings more effectively, resolving the contradiction between protection quality and material quantity.
Solution Approach 2:
The patent replaces traditional mechanical surface preparation (sandblasting, chemical etching) with plasma treatment, achieving better surface activation with minimal material consumption and environmental impact, thus improving corrosion protection efficiency while reducing material usage.
2Reliability
If material deposition is increased to improve surface quality and corrosion protection, then adhesion and corrosion resistance are improved, but processing complexity and costs increase
Solution Approach 1:
The patent performs plasma treatment as a preliminary surface preparation step before coating application. This preliminary activation of the substrate surface ensures optimal adhesion and coating quality, simplifying the overall process by eliminating the need for complex multi-step surface preparations.
Solution Approach 2:
Plasma acts as an intermediary between the substrate and the coating material, creating an optimized surface state that enhances adhesion without requiring complex intermediate layers or extensive surface modification procedures.
3Manufacturing precision
If electrodeposition is used to create high-quality appearance surfaces, then surface quality and adhesion are improved, but material consumption and processing time increase
Solution Approach 1:
The patent replaces electrodeposition with plasma-based coating methods, achieving comparable or superior surface quality and adhesion properties with significantly reduced processing time and material consumption, eliminating the need for lengthy electrochemical processes.
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 method achieves durable, high-quality coatings with excellent adhesion and corrosion resistance, even on complex geometries, and significantly reduces material usage and processing time, ensuring consistent results and minimal edge loss or reject goods in mass production.
Implementation Method 1
providing at least one plasma generator and/or at least one corona system, in some cases in the application system for depositing a metal layer
Implementation Method 2
providing at least one plasma generator and/or at least one corona system
Implementation Method 3
loading the metallic substrate or the non-metallic substrate, in some cases the plastic substrate, or the coatable surface of the metallic substrate or the non-metallic substrate, in some cases of the plastic substrate, with a vacuum (d1)
Implementation Method 4
providing an application system for depositing a metal layer, in some cases a vacuum steam system or sputter system
Implementation Method 5
treating the metallic substrate or non-metallic substrate, in some cases the plastic substrate, obtained according to step a), c) or d), in some cases d1) and d2), or the coatable surface of the metallic substrate or non-metallic substrate, in some cases of the plastic substrate obtained according to step a), c) or d), in some cases d1) and d2), with at least one organic silicone compound, in some cases by way of plasma polymerization, in some cases forming a polysiloxane layer
Data Source
AI summary
The present invention relates to a method for producing a coated metallic or non-metallic substrate, to the coated substrate obtainable in particular by the method according to the invention, and to the use of the coated substrates according to the invention.