pH-Regulated Fire Retardant Composition for Wood Composite Panels
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Solution Overview
Problem
Existing fire retardant compositions for wood composite panels often compromise the functionality of resins used in production, necessitating higher resin amounts to maintain cohesion, and intumescent formulations are incompatible with resin processes, leading to inefficient panel production.
Innovation Solution
A fire retardant composition with a pH regulated to a specific range using pH regulators, allowing compatibility with resins and enabling the use of intumescent formulations within the panel production process, thereby maintaining resin stability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fire retardant compositions are added to wood composite panels, then fire retardancy is improved, but resin functionality deteriorates (lower bond strength)
Solution Approach 1:
The invention applies parameter changes by precisely controlling the pH of the fire retardant composition to specific ranges (pH 4.0-6.0 for isocyanate resins, pH 6.0-8.0 for phenolic resins, pH 5.0-7.0 for melamine resins). This pH optimization resolves the contradiction by maintaining resin functionality while ensuring fire retardancy, demonstrating how parameter adjustment can simultaneously satisfy conflicting requirements.
2Reliability
If intumescent formulation is added to wood composite panels, then fire retardancy is improved, but resin stability deteriorates (early activation and degradation)
Solution Approach 1:
The invention resolves this contradiction by controlling the pH parameter of the intumescent formulation to specific ranges depending on the resin type used. This prevents premature activation of the intumescent agents during panel production while maintaining their fire retardant effectiveness, thus preserving resin stability without compromising fire protection.
Solution Approach 2:
The invention applies preliminary action by pre-adjusting the pH of the intumescent formulation before incorporation into the wood composite panel. This preliminary pH optimization ensures that the intumescent agents remain stable during the production process and only activate when needed for fire protection, preventing early degradation of the resin.
3Strength
If higher amounts of resin are used to maintain cohesion, then resin bond strength is improved, but resin consumption increases (higher cost)
Solution Approach 1:
The invention resolves this contradiction by optimizing the pH parameter of the fire retardant composition to enhance resin performance. This allows achieving adequate bond strength with lower resin quantities, thereby reducing resin consumption and associated costs while maintaining cohesive properties of the wood composite panel.
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 enhances resin bond strength, reduces resin consumption, and ensures compliance with fire test standards while providing effective fire retardancy and smoke suppression.
Implementation Method 1
said composition comprising at least one fire retardant agent, a pH regulating compound and optionally a smoke suppressing agent, whereby the pH of a 10 % aqueous solution of said composition lies between 3.5 and 8.5, more preferably between 4.0 and 8.0
Implementation Method 2
In an embodiment, said composition comprises an intumescent formulation
Data Source
AI summary
The current invention concerns a fire retardant composition for use in wood composite panels, either comprising a fire retardant agent or an intumescent formulation, whereby the pH of a 10 % aqueous solution of said composition lies between 3.5 and 8.5. The present invention also provides for a specific use of the composition in fire retardant wood composite panels, the respective method for producing those panels, as well as the resulting wood composite panels themselves.