Composite Surface Coating for Inert Materials With Strong Adhesion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Modification of inert materials to improve surface properties is challenging, as existing methods are difficult to implement effectively.
Innovation Solution
A method involving a structural component with a surface coated by a polyvinyl alcohol-based crosslinked coating layer, formed through steps of pre-treatment, coating, and crosslinking, using materials like silicone elastomers and fluoropolymers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a coating is applied to an inert surface, then surface properties such as friction and tack are improved, but the coating adherence is poor
Solution Approach 1:
The patent applies plasma treatment to the inert surface before coating to modify its surface properties. This preliminary action creates a more reactive surface that improves subsequent coating adherence while maintaining the desired low friction and low tack properties of the final coating layer.
Solution Approach 2:
The patent uses a composite coating system consisting of multiple layers: a primer layer that bonds to the inert substrate, and a topcoat layer that provides the desired low friction and low tack properties. This composite structure ensures both good adherence and optimal surface performance.
2Reliability
If the surface is pre-treated to improve coating adherence, then the coating binds better, but the surface original properties are altered
Solution Approach 1:
The patent segments the surface modification process into distinct functional layers: a thin primer layer that provides adherence without significantly altering the overall surface properties, and a topcoat layer that restores and enhances the desired surface characteristics. This segmentation allows each layer to perform its specific function while minimizing compromise of the original surface properties.
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 enhances surface properties such as low friction, low tack, high impermeability, and reduced protein absorption, providing improved performance in applications like catheters and cell culture containers.
Implementation Method 1
optionally pre-treating the surface with an ionized gas treatment
Implementation Method 2
treating the precursor coating component to form a crosslinked coating layer overlying the surface of the structural component
Data Source
AI summary
The present disclosure relates to a method of forming a composite article. The method includes: providing a structural component with a surface, wherein the surface includes a silicone elastomer, a fluoropolymer, or a copolymer or a block copolymer; optionally pre-treating the surface with a plasma treatment; coating the surface of the structural component with a precursor coating component, wherein the precursor coating component including a polyvinyl alcohol based component, and treating the precursor coating component to form a crosslinked coating layer overlying the surface of the structural component.