Unified Coating for Fire and Cryogenic Protection
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Solution Overview
Problem
Conventional passive fire protection and cryogenic spill protection methods require separate coatings, which are costly, time-consuming to apply, and prone to cracking due to thermal expansion differentials, necessitating a more efficient and unified solution.
Innovation Solution
A coating composition comprising an epoxy-based binder, a curing agent, inorganic and organic spherical filler particles, an acid-generating agent, and an expansion agent that expands at least five times upon fire contact, providing both passive fire protection and cryogenic spill protection in a single layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate coatings (intumescent and insulative) are applied to provide both fire and cryogenic spill protection, then dual protection functionality is achieved, but application time and cost increase significantly
Solution Approach 1:
The patent combines the intumescent coating and insulative coating into a single unified coating composition. This merging of two separate coating systems into one allows simultaneous provision of both fire protection (intumescent properties) and cryogenic spill protection (insulative properties), thereby reducing application time and cost while maintaining dual protection functionality.
Solution Approach 2:
The single coating composition is designed to perform multiple functions: it provides intumescent protection against fire, insulative protection against cryogenic spills, and additional benefits such as corrosion protection and structural reinforcement. This multi-functional design eliminates the need for separate specialized coatings for each protection type.
2Adaptability or versatility
If two separate coatings are applied to achieve dual protection, then comprehensive protection is provided, but the final coating becomes very thick, increasing cracking risk
Solution Approach 1:
By merging the intumescent and insulative coatings into a single unified composition, the total coating thickness is reduced compared to applying two separate coatings. This thinner, unified coating structure has lower thermal expansion differentials and reduced stress accumulation, thereby minimizing cracking risk while still providing comprehensive dual protection.
3Adaptability or versatility
If separate intumescent and insulative coatings are applied, then specialized protection for each function is achieved, but the coating system becomes complex and expensive
Solution Approach 1:
The patent merges the specialized intumescent and insulative coating systems into a single integrated coating composition. This unified system maintains the specialized protection functions of both original coatings while eliminating the complexity of applying and managing multiple separate coating layers, thereby reducing overall system complexity and application cost.
4Reliability
If thick multi-layer coating is applied to provide adequate protection, then protection effectiveness is improved, but thermal expansion differentials cause stress and cracking
Solution Approach 1:
The unified coating composition is formulated with specific physical and chemical parameters (including thermal expansion coefficients, viscosity, and curing characteristics) that are optimized to match the substrate and provide uniform protection. This parameter optimization ensures that the single coating layer expands and contracts uniformly with the substrate, reducing stress and cracking while maintaining adequate protection effectiveness.
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 offers a cost-effective, faster application process with reduced dry film thickness, minimizing cracking risks and achieving dual functionality of fire and cryogenic spill protection, outperforming conventional multi-layer systems in both cryogenic spill and fire protection tests.
Implementation Method 1
intumescent components comprising an acid-generating agent and an expansion agent, wherein the intumescent components expand the volume of a coating derived from the composition at least five times when contacted with fire
Implementation Method 2
intumescent components comprising an acid-generating agent and an expansion agent
Implementation Method 3
inorganic, spherical, filler particles; organic, spherical, filler particles
Implementation Method 4
an epoxy-based binder; a curing agent
Data Source
AI summary
A coating composition includes: (i) an epoxy-based binder; (ii) a curing agent; (iii) inorganic, spherical, filler particles; (iv) organic, spherical, filler particles; and intumescent components comprising: (v) an acid-generating agent; and (vi) an expansion agent. wherein said intumescent components expand the volume of a coating derived from said composition at least 5 times when contacted with heat from a fire.