Insulating Coating Film Composition for Dew-Resistant Metal Plate
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Solution Overview
Problem
Existing methods for preventing dew condensation on metal surfaces, such as steel plates, suffer from issues like adhesive limitations, complex processes, and ineffective insulation due to broken glass beads or increased hardness leading to coating film damage during processing.
Innovation Solution
A coating film composition comprising a polymer resin, foaming capsules, plasticizer, and silica, which forms closed pores through foaming, providing thermal insulation and corrosion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If glass beads are added to polymer resin solution to create pore effect, then dew condensation prevention effect is improved, but glass beads break due to heavy load during coiling and insulation effect is reduced
Solution Approach 1:
The patent uses porous foam particles instead of glass beads to create a pore effect in the coating film. The foam particles maintain their structure under heavy load during coiling, providing continuous insulation effect while preventing dew condensation. This resolves the contradiction by finding a porous material that is both effective for dew prevention and mechanically reliable.
Solution Approach 2:
The patent employs foam particles that are designed to be consumed or transformed during the foaming process. The foam particles expand and form closed-cell structures that become integral part of the coating film, providing durable insulation without the structural integrity issues of glass beads.
2Object-affected harmful factors
If excessive amounts of inorganic particles or glass beads are added, then pore effect is enhanced, but hardness of coating film increases and coating film breaks during press processing or bending processing
Solution Approach 1:
The patent replaces inorganic particles with organic foam particles that create pores through controlled foaming. This approach maintains dew condensation prevention effectiveness while avoiding the hardness increase and brittleness associated with excessive inorganic particle content, thus preserving coating film integrity during processing.
Solution Approach 2:
The patent controls the amount of foam particles added to optimize the balance between pore formation and film flexibility. By adjusting the concentration of foam particles and controlling the foaming conditions, the coating film achieves sufficient porosity for dew prevention while maintaining appropriate hardness and flexibility to prevent breaking during processing.
3Loss of energy
If adhesive is used to bond insulating material to steel plate, then insulation effect is improved, but process complexity increases and adhesive limitations arise
Solution Approach 1:
The patent combines the insulating material (foam particles) directly into the coating composition that is applied to the steel plate. This merges the coating application process with the insulation function, eliminating the need for separate adhesive bonding steps and reducing overall process complexity while maintaining effective thermal insulation.
Solution Approach 2:
The coating film serves multiple functions simultaneously: it provides corrosion protection to the steel plate, creates a decorative surface, and delivers thermal insulation through the foam particles. This multi-functionality eliminates the need for separate insulating layers and adhesives, simplifying the overall system.
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 composition effectively minimizes temperature differences to prevent dew condensation, blocks external heat or cold air, and enhances corrosion resistance while maintaining film strength, thus saving energy and preventing damage.
Implementation Method 1
a coating film composition having heat insulation by closed pores formed by foaming
Implementation Method 2
heat insulation by closed pores formed by foaming
Data Source
AI summary
The present invention provides a coating film composition and a coated metal plate using same, the coating film composition comprising: a polymer resin; foaming capsules; a plasticizer; and silica, wherein the coating film composition comprises, with respect to 100 parts by weight of the polymer resin, 0.1-10 parts by weight of the foaming capsules; 5-40 parts by weight of the plasticizer; and 1-10 parts by weight of the silica, the foaming capsules are in the form of foaming capsules containing a foaming agent in a thermoplastic plastic cell structure, and the weight ratio of the foaming capsules to the silica is 1:1-1:10.