Antifouling Coating Composition Stabilizes Film Dissolution
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Solution Overview
Problem
Existing antifouling coating compositions for ships and submerged structures in seawater suffer from initial film dissolution defects and cracking, leading to reduced antifouling performance over time.
Innovation Solution
An antifouling coating composition comprising a resin component and an ester compound with specific chemical structures, which stabilizes film dissolution speed and prevents cracking, maintaining antifouling performance for a long period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional antifouling coating compositions are used, then antifouling performance is achieved, but initial film dissolution becomes excessive and film defects such as cracks occur after a relatively short period of time
Solution Approach 1:
The patent changes the chemical composition parameters of the coating film by incorporating specific ester compounds ( formulas (1) to (5)) with controlled molecular structures. These ester compounds modify the film dissolution characteristics, reducing initial excessive dissolution while maintaining stable dissolution rates over time, thereby extending the service life of the coating film without sacrificing antifouling performance
Solution Approach 2:
The patent creates a composite coating system by combining resin component (A) with specific ester compounds (B) in defined ratios. This composite formulation synergistically integrates the adhesive and structural properties of the resin with the dissolution-controlled properties of the ester compounds, producing a coating film that maintains both reliability and extended duration of action
2Productivity
If film dissolution speed is increased to maintain antifouling performance, then antifouling effectiveness is improved, but film defects such as cracks occur more frequently
Solution Approach 1:
The patent precisely controls the dissolution rate parameter by selecting ester compounds with specific molecular structures (formulas (1) to (5)). These structures provide an optimal balance where the film dissolves at a controlled speed sufficient to maintain antifouling performance while avoiding excessive dissolution that would cause cracking and maintain film integrity
Solution Approach 2:
The patent introduces functional differentiation within the coating film by incorporating ester compounds that specifically target dissolution control in certain regions or at certain times. The ester compounds create localized zones with modified dissolution characteristics that prevent stress concentration and crack propagation while maintaining overall film integrity
Data Source
AI summary
The antifouling coating composition can maintain stable film dissolution speed for a long period of time in seawater, and can maintain stable antifouling performance without occurrence of film defects such as cracks in the coating film. An antifouling coating composition includes: a resin component (A); and an ester compound (B); wherein the ester compound (B) includes at least one ester compound represented by chemical formulas (1) to (5).