Water-Based Fire-Resistant Paint Composition for Steel Frames
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Solution Overview
Problem
Existing fire-resistant coatings for steel frames have limitations in durability, water resistance, and adhesion, and they often generate harmful substances during application and use.
Innovation Solution
A water-based inorganic fire-resistant paint composition is developed, comprising specific weight percentages of pentaerythritol, EDTA, hydroxyethyl cellulose, poly(vinyl acetate) emulsion, ammonium polyphosphate, melamine cyanurate, glass fiber chop, pigment, propylene glycol, Texanol, and additives, which enhances fire resistance, durability, and adhesion while minimizing volatile organic substances and harmful gases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If organic fire-resistant paint is used, then fire resistance is achieved through foamed carbonization layer mechanism, but harmful gases are generated and resin limitations occur
Solution Approach 1:
The patent converts the harmful carbonization mechanism of organic paints into a beneficial inorganic expansion mechanism. The intumescent coating expands when exposed to fire, forming an insulating char layer that protects the steel substrate, while the inorganic composition avoids generating harmful organic gases during combustion
Solution Approach 2:
The patent changes the chemical composition parameters from organic to inorganic materials. By using inorganic binders, intumescent agents, and fillers, the coating maintains fire resistance functionality while eliminating the generation of harmful organic gases that occur with traditional organic paint systems
2Object-generated harmful factors
If inorganic paint is used, then eco-friendliness and construction safety are improved, but water resistance and durability are limited due to strong alkalinity
Solution Approach 1:
The patent creates a composite inorganic paint system combining multiple inorganic components including binders, intumescent agents, fillers, and glass fibers. This composite structure provides both eco-friendliness and enhanced durability by leveraging the complementary properties of different inorganic materials to overcome the limitations of single-component inorganic paints
Solution Approach 2:
The patent applies different inorganic materials with specific local functions within the coating system. For example, glass fibers provide reinforcement in specific areas, while intumescent agents are concentrated in regions where fire resistance is most needed, creating localized property enhancement without compromising overall water resistance
3Reliability
If spray coating material is used, then fire resistance is achieved, but adhesion and dust problems occur after construction
Solution Approach 1:
The patent replaces the mechanical spray application system with a brush or roller application system. This substitution eliminates the dust generation and adhesion problems associated with spray coating while maintaining fire resistance through the application of the viscous paste-like coating material directly onto the steel surface
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 achieves excellent fire resistance by blocking high-temperature heat, provides enhanced durability and adhesion to steel frames, and minimizes the generation of harmful substances, making it a more eco-friendly and effective solution.
Implementation Method 1
pentaerythritol, which has excellent fire resistance performance to block or delay the access of high-temperature heat
Implementation Method 2
a functional paint that protects a steel structure by expanding the coating film in the event of a fire and then forming a fire-resistant insulation layer
Implementation Method 3
1 to 5% by weight of ethylenediaminetetraacetic acid (EDTA) as a water softener
Implementation Method 4
provides excellent durability by exhibiting strong adhesion to steel frames
Implementation Method 5
10 to 25% by weight of ammonium polyphosphate, 5 to 20% by weight of melamine cyanurate
Implementation Method 6
1 to 10% by weight of glass fiber chop
Implementation Method 7
3 to 25% by weight of propylene glycol, 5 to 20% by weight of Texanol
Data Source
AI summary
The present invention provides an inorganic eco-friendly water-based type fire-resistant paint composition comprising 5 to 15% by weight of pentaerythritol, 1 to 5% by weight of ethylenediaminetetraacetic acid (EDTA) as a water softener, 5 to 20% by weight of hydroxyethyl cellulose, 5 to 20% by weight of poly(vinyl acetate) emulsion, 10 to 25% by weight of ammonium polyphosphate, 5 to 20% by weight of melamine cyanurate, 1 to 10% by weight of glass fiber chop, 1 to 10% by weight of pigment, 3 to 25% by weight of propylene glycol, 5 to 20% by weight of Texanol ((3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate), and 1 to 5% by weight of additives.