Antimicrobial Sacrificial Floor Coating via Segmentation
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Solution Overview
Problem
Existing antimicrobial floor coatings struggle to maintain effectiveness in high-traffic areas due to loss of antimicrobial properties over time and difficulty in removal, which leads to increased bacterial growth.
Innovation Solution
Development of an antimicrobial sacrificial floor coating system comprising a nonionic acrylic polymer, nonionic wax, cationic wax, and a cationic alkyl biguanide antimicrobial agent, which forms a clear, thin film that maintains antimicrobial efficacy for up to 6 months and is easily removable with an acidic solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If permanent floor coatings with prepolymers and cross-linking agents are used, then coating durability and resistance to frictional forces improve, but removal difficulty and labor intensity increase significantly
Solution Approach 1:
The coating system is segmented into two distinct components: a durable base coating and a removable sacrificial antimicrobial layer. This segmentation allows the base coating to provide long-term durability while the sacrificial layer can be easily removed and reapplied to maintain antimicrobial properties without requiring removal of the entire coating system.
Solution Approach 2:
The antimicrobial floor coating is designed as a sacrificial, short-lived component that is intentionally made easy to remove and replace. Rather than making the entire coating system permanent and difficult to remove, only the antimicrobial layer is designed to be temporary and disposable, allowing for periodic reapplication to restore antimicrobial efficacy without the complexity of removing durable base coatings.
2Ease of operation
If antimicrobial floor coatings are designed to be easily removable, then removal labor and solvent requirements decrease, but coating durability and resistance to frictional forces worsen
Solution Approach 1:
The coating system is segmented into two distinct components: a durable base coating and a removable sacrificial antimicrobial layer. This segmentation allows the base coating to provide long-term durability while the sacrificial layer can be easily removed and reapplied to maintain antimicrobial properties without requiring removal of the entire coating system.
3Duration of action of stationary object
If coatings undergo polymerization and cross-linking processes, then coating permanence improves, but removal difficulty and need for strong solvents increase
Solution Approach 1:
The coating system is segmented into two distinct components: a durable base coating and a removable sacrificial antimicrobial layer. This segmentation allows the base coating to provide long-term durability while the sacrificial layer can be easily removed and reapplied to maintain antimicrobial properties without requiring removal of the entire coating system.
Solution Approach 2:
The antimicrobial floor coating is designed as a sacrificial, short-lived component that is intentionally made easy to remove and replace. Rather than making the entire coating system permanent and difficult to remove, only the antimicrobial layer is designed to be temporary and disposable, allowing for periodic reapplication to restore antimicrobial efficacy without the complexity of removing durable base coatings.
4Reliability
If antimicrobial agents are included in floor coatings, then bacterial growth prevention improves, but unfavorable chemistry may counteract the antimicrobial agent reducing efficacy
Solution Approach 1:
The antimicrobial agent is extracted from the permanent base coating and placed exclusively in the removable sacrificial layer. This separation allows the antimicrobial agent to be protected from chemical incompatibilities in the base coating while maintaining its efficacy. The sacrificial layer acts as a protective vehicle that delivers the antimicrobial agent without exposing it to counteracting chemistry.
Solution Approach 2:
The sacrificial coating layer serves as an intermediary between the base coating and the antimicrobial agent. It provides a chemically compatible environment for the antimicrobial agent while adhering to the base coating, thereby protecting the antimicrobial agent from unfavorable chemistry in the base coating that would otherwise reduce its efficacy.
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 antimicrobial sacrificial floor coating system effectively reduces and prevents gram-positive and gram-negative bacteria growth on high-traffic surfaces for extended periods, while being easily removable without the need for harsh solvents or physical grinding.
Implementation Method 1
This antimicrobial sacrificial floor coating remover is preferably an acidic solution that intercalates and swells the antimicrobial sacrificial floor coating during a predetermined dwell time thereby allowing for removal of the antimicrobial sacrificial floor coating from a floor surface via subsequent scrubbing or use of a low speed floor machine
Implementation Method 2
This antimicrobial sacrificial floor coating remover is preferably an acidic solution that intercalates and swells the antimicrobial sacrificial floor coating during a predetermined dwell time
Data Source
AI summary
Disclosed are antimicrobial sacrificial floor coatings systems including an antimicrobial sacrificial floor coating composition capable of reducing and/or preventing gram positive and gram negative bacterial growth on floors.