Fluororubber Peelable Coating for High-Temperature Substrate Protection
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Solution Overview
Problem
Existing peelable coatings fail to maintain their peeling and anti-corrosion properties when exposed to high temperatures of 200°C, leading to decreased coating strength and increased adhesion to the substrate, making them unsuitable for applications requiring high temperature resistance.
Innovation Solution
A high-temperature resistant, peelable, and anti-corrosion coating is developed, comprising component A with fluororubber as the film-forming substance, combined with pigments, fillers, and auxiliary agents, and component B with a vulcanizing agent, which are mixed and applied to form a coating that can be completely peeled off after exposure to 200°C for 4 hours without damaging the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional peelable coatings are exposed to high temperature of 200°C, then the coating strength decreases sharply and adhesion to substrate increases, but the coating can no longer be peeled off and damages the substrate
Solution Approach 1:
The patent changes the chemical composition parameters of the coating by introducing fluororubber as film-forming substance and specific vulcanizing agents, which fundamentally alters the coating's thermal response characteristics. This enables the coating to maintain appropriate adhesion strength at 200°C, preventing both premature peeling and permanent bonding to the substrate.
Solution Approach 2:
The patent creates a composite coating system combining fluororubber-based resin with specific vulcanizing agents (metal salts or organic peroxides) and adhesion modifiers. This composite formulation synergistically provides high-temperature stability while maintaining peelability, resolving the contradiction between thermal resistance and coating strength.
2Reliability
If conventional peelable coatings are used for anti-corrosion protection, then they provide temporary protection, but they lack sufficient anti-corrosion performance for long-term use in corrosive environments
Solution Approach 1:
The patent enhances the chemical resistance parameters of the coating through fluororubber's inherent chemical inertness and the addition of corrosion-resistant fillers. This enables the coating to withstand corrosive environments (acids, alkalis, salts) for extended periods while maintaining its protective function and peelability.
Solution Approach 2:
The patent formulates a composite coating incorporating fluororubber resin with corrosion-resistant inorganic fillers and appropriate vulcanizing agents. This composite structure provides both long-term anti-corrosion protection and maintains the temporary nature of the coating for eventual removal.
3Ease of manufacture
If anti-corrosion and weather-proof coating is sprayed before charge completion, then it is affected by bumps and pollution affecting apparent quality, but spraying after charge completion results in long construction period and high safety risks
Solution Approach 1:
The patent enables the anti-corrosion coating to be applied in advance during the insulation layer pasting process, before charge completion. The coating's high-temperature resistance allows it to withstand subsequent processing temperatures without degradation, and its peelability ensures it can be removed cleanly after charge assembly, thus eliminating the need to delay coating application for safety reasons.
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 coating maintains its peeling and anti-corrosion properties even after exposure to 200°C for 4 hours, ensuring the substrate remains unaffected, and the coating can be easily peeled off, thus addressing the limitations of existing coatings in high-temperature environments.
Implementation Method 1
component B includes vulcanizing agent and solvent B; the component B includes the following components in parts by weight: vulcanizing agent 10 to 50 parts by weight
Data Source
AI summary
A high-temperature resistant peelable anti-corrosion coating, a preparation method therefor and an application thereof are provided. The coating includes component A and component B; the component A includes film-forming substance, pigment and filler, auxiliary agent, and solvent A; the component B includes vulcanizing agent and solvent B; the component A includes the following components in parts by weight: 100 parts of film-forming substance; 25-55 parts of pigment and filler; 0.1-3 parts of adhesion modifier; 0.5-5 parts of auxiliary agent; 20-50 parts of solvent A; the component B includes the following components in parts by weight: 10-50 parts of vulcanizing agent; 100 parts of solvent B. The coating can be completely peeled off from the substrate after being subjected to a high temperature of 200° C. for 4 hours, without affecting the state of the substrate.