Antimicrobial Coating via Silane Bonding and Composite Agents
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for an effective antimicrobial coating that can inhibit the growth and transmission of various microbial agents on diverse surfaces such as concrete, wood, plastics, metals, and textiles, particularly in high-risk areas like hospitals and restaurants.
Innovation Solution
A composition comprising 70-80% water, 5-10% methyl alcohol, 3-8% octadecyl dimethyl trimethoxy silylpropyl-ammonium chloride, 1-5% chloropropyl trimethoxysilane, 0.5-1.5% aminopropyltrialkoxysilane, 0.5-1.5% surfactant, 1-1.5% antimicrobial agent, and 0.5-2.5% sulfuric acid, which is resistant to bacterial and viral growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional antimicrobial treatments are used, then microbial growth is inhibited, but the surfaces require frequent reapplication and maintenance
Solution Approach 1:
The coating combines multiple components (silane coupling agents, water glass, antimicrobial agents, and surfactants) to create a composite material system. The silane coupling agents form a strong chemical bond between the coating and substrate, while water glass provides durability and antimicrobial agents provide continuous protection, resolving the contradiction between effectiveness and durability
Solution Approach 2:
The patent optimizes the chemical composition parameters including specific ratios of silane coupling agents (3-8%), water glass (15-30%), and antimicrobial agents (0.5-2%), along with controlling pH and curing conditions. These parameter changes enable the coating to achieve both long-term durability and sustained antimicrobial activity
2Object-affected harmful factors
If harsh chemical sterilants are used, then pathogen transmission is prevented, but the surfaces and environment are damaged
Solution Approach 1:
The patent converts the harmful effect of traditional harsh chemicals into a beneficial long-term protective mechanism. The coating incorporates antimicrobial agents that continuously release low levels of biocidal substances, providing sustained protection without the immediate corrosive damage of conventional sterilants, thus protecting both surfaces and environment
Solution Approach 2:
The coating acts as an intermediary layer between the substrate and microbial agents. It incorporates surfactants and silane coupling agents that create a protective barrier, reducing the need for direct contact with harsh chemicals while maintaining antimicrobial effectiveness, thereby preventing surface damage
3Object-affected harmful factors
If multiple separate treatments are applied to achieve comprehensive protection, then all microbial threats are addressed, but the process becomes complex and time-consuming
Solution Approach 1:
The patent merges multiple functions into a single coating formulation. It combines adhesion promoters (silane coupling agents), protective matrix (water glass), antimicrobial agents, and surfactants into one integrated system that provides simultaneous adhesion, durability, antimicrobial protection, and surface wetting, eliminating the need for multiple separate treatments
Solution Approach 2:
The coating is designed as a multi-functional universal solution that can be applied to diverse substrates (metals, plastics, ceramics, textiles) and provides multiple benefits simultaneously: adhesion, durability, antimicrobial protection, and surface preparation. This universal formulation simplifies the treatment process while addressing comprehensive microbial threats
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 effectively prevents the growth and transmission of pathogens like norovirus, staphylococcus aureus, and mycobacterium tuberculosis, making it suitable for use in high-risk environments and serving as a general-purpose sterilizer.
Implementation Method 1
A coating comprising between seventy and eighty percent water by weight, five to ten percent methyl alcohol by weight, three to eight percent silane coupling agent, one to five percent chloropropyl trimethoxysilane by weight, one half percent to one and one half percent aminopropyltrialkoxysilane by weight
Implementation Method 2
one half percent to one and one half percent surfactant by weight
Implementation Method 3
one to two percent antimicrobial agent by weight, resistant to bacterial and viral growth
Data Source
AI summary
An antimicrobial coating composition consisting essentially of 70 to 80 wt. percent water; 5 to 10 wt. percent methyl alcohol; 3 to 8 wt. percent octadecyl dimethyl trimethoxy silylpropyl-ammonium chloride; 1 to 5 wt. percent chloropropyl trimethoxysilane; 0.5 to 1.5 wt. percent aminopropyltrialkoxysilane; 0.5 to 1.5 wt. percent of a surfactant; 1 to 1.5 wt. percent of an anti-microbial agent; and 0.5 to 2.5 wt. percent sulfuric acid.