Atmospheric-Pressure Plasma Polymerization Coating with Nanoparticles
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Solution Overview
Problem
Existing methods for creating superhydrophobic coatings on textiles are energy-intensive and require chemical treatments, leading to undesirable thickness, tactile finish, and durability issues, while existing plasma treatment systems face challenges with even distribution and vacuum requirements, limiting the application of nanoparticles and coatings.
Innovation Solution
A plasma polymerization process using atmospheric-pressure plasma to apply nanoparticle coatings, allowing for pathogen-inhibiting and oligodynamic properties, with nanoparticles distributed throughout the coating and applied via aerosols at atmospheric pressure, enabling simultaneous deposition of monomers and nanoparticles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical solution treatment is used to create superhydrophobic coating, then reactive functional groups are generated, but the process becomes energy-intensive and requires multiple chemical reagents
Solution Approach 1:
The patent changes the fundamental parameter of the coating process from chemical solution treatment to plasma polymerization. This physical-chemical process uses plasma activation to directly polymerize monomers on the substrate surface, eliminating the need for multiple chemical reagents and reducing energy consumption while maintaining coating performance
Solution Approach 2:
The invention extracts and removes the harmful chemical reagents (oxidizing agents like chromic acid) from the coating process. By using plasma polymerization, the process achieves superhydrophobic coating without requiring these toxic chemicals, thereby simplifying the process and reducing environmental impact
2Adaptability or versatility
If particles are added to coating for functional properties, then coating functionality is improved, but coating thickness increases and handfeel deteriorates
Solution Approach 1:
The patent applies local quality by incorporating particles selectively within the coating matrix rather than as a bulk additive. The plasma polymerization process deposits a thin polymer matrix that encapsulates particles, providing localized functional properties while maintaining overall coating thinness and desirable handfeel
Solution Approach 2:
The invention creates a composite coating structure where particles are embedded within a plasma-polymerized matrix. This composite approach combines the functional properties of particles with the adhesive and protective properties of the polymer matrix, achieving both functionality and thin coating thickness
3Manufacturing precision
If vacuum plasma treatment is used for coating application, then coating deposition is achieved, but even distribution of particles and complexity of vacuum system are affected
Solution Approach 1:
The patent replaces the mechanical vacuum system with an atmospheric-pressure plasma system. This substitution eliminates the need for complex vacuum pumps and chambers while maintaining effective coating deposition through plasma polymerization at atmospheric pressure, resulting in simpler equipment and better particle distribution
4Ease of manufacture
If atmospheric-pressure plasma is used for coating, then vacuum requirements are eliminated and particle distribution is improved, but process control complexity may increase
Solution Approach 1:
The atmospheric-pressure plasma system is designed to be self-regulating through the natural properties of plasma polymerization. The process automatically adjusts to maintain stable deposition rates and coating quality without requiring complex external control systems, thereby achieving both process simplicity and manufacturing ease
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 provides a durable, efficient, and energy-saving coating with improved surface roughness and functionality, capable of inhibiting pathogens and adapting to light exposure, while overcoming vacuum-related distribution issues and enabling uniform coating application.
Implementation Method 1
the coating may be formed from a monomer and a nanoparticle which have passed through a plasma
Implementation Method 2
the monomer and the nanoparticle are passed through a plasma before being deposited onto the article
Implementation Method 3
a plasma fluid may be supplied to an electrode region of the treatment module, the electrode region may comprise two or more electrodes. The plasma gas may be ignited to form a plasma in the electrode region
Data Source
AI summary
A coating applied to an article which includes a pigment or a dispersion. The coating comprising an upper side and a lower side. The coating being applied to at least one surface of the article: and wherein the coating is formed from a monomer and a nanoparticle which have passed through a plasma such that a plasma polymerised coating have been formed.