Molded Article Surface Stabilization for Antibacterial Durability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional plastic products with antibacterial properties face issues such as short durability due to peeling or elution of antibacterial materials, and there is a lack of effective methods to impart antibacterial and antiviral properties to fiber-reinforced plastic products.
Innovation Solution
A molded article comprising a calcium compound and a resin, with a salt of inositol phosphate and at least one metal element (silver, zinc, or copper) on its surface, which provides excellent antibacterial and antiviral properties. This configuration stabilizes the antibacterial material, ensuring long-lasting effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antibacterial material is kneaded with resin to impart antibacterial properties, then antibacterial capability is achieved, but the antibacterial material is easily peeled off or eluted, resulting in short duration of antibacterial properties
Solution Approach 1:
The patent applies a primer coat containing calcium compound to the surface before applying the antibacterial material. This preliminary action creates a bonding layer that prevents peeling and elution of subsequent antibacterial coatings, thereby extending the duration of antibacterial properties while maintaining reliability.
Solution Approach 2:
The calcium compound primer acts as an intermediary layer between the substrate and the antibacterial material. It chemically bonds with both the substrate and the antibacterial material, preventing direct contact that would cause peeling or elution, thus maintaining antibacterial capability while extending its duration.
2Reliability
If antibacterial material is attached to surface of base material, then antibacterial properties are achieved, but the material is peeled off due to friction and mechanical stress
Solution Approach 1:
The primer coat is applied in advance to create a stable bonding surface. This preliminary action ensures that when antibacterial material is subsequently applied, it adheres firmly to the primer layer, resisting friction and mechanical stress that would otherwise cause peeling.
Solution Approach 2:
The patent creates a composite structure consisting of the base material, calcium compound primer layer, and antibacterial material layer. This multi-layer composite structure enhances the stability of antibacterial material attachment by distributing mechanical stresses across different layers with complementary properties.
3Strength
If filler is added to resin material, then mechanical properties are improved, but antibacterial agent dispersal is hindered
Solution Approach 1:
The patent separates the antibacterial material application into distinct surface coating layers rather than mixing it throughout the bulk resin with filler. This segmentation allows the antibacterial agent to be applied in controlled layers where it can disperse properly without being hindered by filler particles in the resin matrix.
Solution Approach 2:
The antibacterial material is concentrated in the surface layers (primer and topcoat) rather than being uniformly distributed throughout the entire plastic product. This local concentration ensures sufficient antibacterial agent quantity at the surface for effectiveness, while the filler-containing resin bulk maintains mechanical properties without interfering with antibacterial dispersal.
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 proposed solution achieves long-lasting antibacterial and antiviral properties by stabilizing the antibacterial material on the surface of the molded article, thereby extending the product's life cycle and enhancing its hygiene performance, especially in fiber-reinforced plastic products.
Implementation Method 1
a molded article comprising a calcium compound, and a resin, in which the molded article has inositol phosphate and at least one metal ion selected from a silver ion, a zinc ion, and a copper ion
Implementation Method 2
The proposed solution achieves long-lasting antibacterial and antiviral properties by stabilizing the antibacterial material on the surface of the molded article
Data Source
AI summary
The purpose of the present invention is to provide a novel molded article having antibacterial or antiviral properties, a method for manufacturing the same, and the like. The present invention relates to a molded article 100 which contains a calcium compound 104 and a resin, and has a salt of inositol phosphate 102 with at least one metal element 103 selected from the group consisting of silver, zinc, and copper on a surface 101.