N-Halamine Odor-Resistant Coating via Carrier Penetration
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Solution Overview
Problem
Current odor management compositions, particularly deodorizing/sanitizing compositions, face limitations in effectively eliminating odors and contaminants from solid articles and aqueous media, especially in applications where frequent cleaning is not practical or effective, and there is a need for long-term stability and broad-spectrum antimicrobial activity.
Innovation Solution
The use of halogenated heterocyclic N-halamines dispersed in inert liquid carriers applied to surfaces, allowing the carrier to penetrate and deposit the N-halamine particles, providing odor resistance, antimicrobial activity, and the ability to remove toxic compounds through chemical degradation or high-affinity adsorption, suitable for manufacturing odor-resistant articles, air filters, and purification media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If deodorizing/sanitizing compositions are used to eliminate odors and microorganisms, then odor control and antimicrobial activity are improved, but long-term stability and effectiveness in non-practical cleaning applications are insufficient
Solution Approach 1:
The N-halamine particles are pre-applied to the surface of the article before use, establishing a reservoir of active deodorizing and antimicrobial agents that will act over time. This preliminary action ensures long-term stability and effectiveness without requiring frequent reapplication or practical cleaning interventions.
Solution Approach 2:
The composition enables the article itself to provide odor control and antimicrobial protection through the sustained-release mechanism of N-halamine particles. The article becomes self-functional, eliminating the need for external cleaning products or frequent manual intervention, thereby achieving both long-term stability and practical effectiveness.
2Object-generated harmful factors
If cleaning products and disinfectants are applied frequently to control odors, then odor-causing bacteria are removed, but the need for frequent application reduces productivity and increases complexity
Solution Approach 1:
The N-halamine particles provide continuous odor control and antimicrobial protection over an extended period through sustained-release mechanisms. This continuous action eliminates the need for frequent reapplication of cleaning products, thereby improving productivity by reducing the frequency of maintenance operations.
3Adaptability or versatility
If conventional deodorizing compositions are used, then some odor control is achieved, but broad-spectrum antimicrobial activity and contaminant removal capability are insufficient
Solution Approach 1:
The N-halamine-based composition provides multiple functions simultaneously: odor control, broad-spectrum antimicrobial activity against various microorganisms, and contaminant removal capability. This multi-functionality achieves adaptability across different applications while effectively addressing multiple harmful factors including odors, bacteria, viruses, and toxic compounds.
Solution Approach 2:
The composition utilizes composite N-halamine particles that combine deodorizing, antimicrobial, and contaminant-removal properties in a single material system. This composite approach enables broad-spectrum activity and versatile application while maintaining effectiveness against diverse contaminants without requiring multiple separate products.
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 solution achieves high odor resistance, effective antimicrobial activity, and efficient removal of contaminants, including toxic gases, from various surfaces and air streams, offering long-term stability and broad-spectrum odor control in diverse applications.
Implementation Method 1
applying a dispersion of a halogenated heterocyclic N-halamine in an inert liquid carrier to the surface of the article and allowing the inert liquid carrier to penetrate into the article
Implementation Method 2
wherein the halogenated heterocyclic N-halamine becomes deposited on the surface of the article
Implementation Method 3
remove toxic compounds from aqueous media or air through chemical degradation or high-affinity adsorption
Implementation Method 4
remove toxic compounds from aqueous media or air through chemical degradation or high-affinity adsorption
Data Source
AI summary
Articles can be provided with odor resistance by applying a dispersion of a halogenated heterocyclic N-halamine in an inert liquid carrier onto the surface of the article and allowing the inert liquid carrier to penetrate into it. The N-halamine accordingly becomes deposited on the surface of the article after the inert liquid carrier penetrates into the article. This method can be used to provide odor resistance to a variety of substrates, including garbage bags. It can also be used to deposit other functional particulates onto the surface of substrates having sufficient porosity to take up the vehicle. For instance, such functional particles can be oxidants that display antimicrobial and/or enzyme inhibitory efficacy or particles having toxin interaction potentials through oxidative degradation or adsorption of toxic substances in air and/or water, such as fluoride uptake by metal oxide microparticles.