Intumescent Fire-Resistant Coating Composition
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Solution Overview
Problem
Current fire-resistant coatings fail to provide simultaneous protection against jet fires and pool fires, often resulting in either good jet fire resistance or good pool fire resistance but not both, and they generate excessive smoke, with limited durability and maintenance requirements.
Innovation Solution
A composition comprising a polysulfide, epoxy resin, compounds with secondary and/or tertiary amine groups, polysiloxane, and fibers, which expands to form a stable char, providing superior jet fire resistance, excellent pool fire resistance, low smoke generation, and good weatherability without the need for additional topcoats or mesh reinforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fire-resistant coatings are used, then either jet fire resistance or pool fire resistance is improved, but not both simultaneously
Solution Approach 1:
The patent employs a composite coating formulation integrating polysulfide resin, epoxy resin, amine compounds, polysiloxane, and fibers. This composite structure enables the coating to simultaneously achieve both jet fire resistance and pool fire resistance by combining the thermal stability of polysulfide, the crosslinking properties of epoxy, and the protective characteristics of polysiloxane, creating a multi-functional fire protection system
Solution Approach 2:
The patent modifies the chemical composition parameters of the coating by incorporating specific ratios of polysulfide (10-30 wt%), epoxy resin (5-20 wt%), amine compounds (5-15 wt%), and polysiloxane (1-10 wt%). These parameter changes in the formulation enable the coating to exhibit dual fire resistance performance, transforming the coating's thermal response characteristics to protect against both jet and pool fires
2Reliability
If conventional fire-resistant coatings are used, then fire protection is provided, but excessive smoke is generated
Solution Approach 1:
The patent converts the potential harmful smoke generation into a beneficial protective mechanism by formulating a coating that produces a dense, low-smoke char layer when exposed to fire. The polysulfide and epoxy components undergo controlled decomposition to form a carbonaceous barrier that protects the substrate while generating minimal visible smoke, transforming the decomposition process from harmful to protective
3Reliability
If conventional fire-resistant coatings are used, then fire resistance is achieved, but additional topcoats or mesh reinforcement are required
Solution Approach 1:
The patent creates a universal coating system that performs multiple functions simultaneously: fire resistance, corrosion protection, and structural reinforcement. The integrated formulation of polysulfide, epoxy, amine, polysiloxane, and fibers provides all these functions in a single coating application, eliminating the need for separate topcoats or mesh reinforcement layers
4Duration of action of stationary object
If the coating thickness is increased to improve fire resistance, then protection time is extended, but the coating becomes more complex and difficult to apply
Solution Approach 1:
The patent optimizes the formulation parameters to achieve rapid curing and proper film formation at practical coating thicknesses. By adjusting the resin composition, crosslinking agents, and curing conditions, the coating achieves optimal fire protection performance (over 80 minutes at 10mm thickness) without requiring complex application procedures or excessive thickness
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 offers more than 80 minutes of protection against a jet fire at a dry film thickness of 10mm, improved hydrocarbon performance, reduced smoke generation, and enhanced durability, meeting stringent fire protection standards without additional coatings or mesh reinforcement.
Implementation Method 1
The coating slows the rate of temperature increase of the substrate to which the coating is applied... The composition offers more than 80 minutes of protection against a jet fire
Implementation Method 2
the binder also provides a source of carbon, which, in a fire, is converted to a char
Implementation Method 3
If an epoxy resin is present in the binder, the binder also provides a source of carbon, which, in a fire, is converted to a char
Implementation Method 4
a polysulfide, epoxy resin, compounds with secondary and/or tertiary amine groups, polysiloxane, and fibres
Data Source
AI summary
The invention relates to a composition that can be used as a coating and that can protect a substrate coated with this composition from high heat. The composition comprises: a polysulfide, an epoxy resin, a compound selected from compounds having a secondary and/or a tertiary amine group, and compounds having an amide group, a polysiloxane, and fibres.