Silane-Modified Binder Composition for Fast-Curing Wood Bonding
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Solution Overview
Problem
Existing wood-based material manufacturing processes face challenges in controlling the curing speed of binders and minimizing binder penetration into wood materials, leading to increased costs and suboptimal product quality.
Innovation Solution
A binder composition comprising a polymer adhesive, phase transfer catalyst, and hydrophilizing agent, particularly silane compounds, is used to control curing speed and reduce binder penetration, ensuring uniform bonding and efficient production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the amount of binder composition is increased to achieve sufficient bond strength in high humidity applications, then bonding reliability is improved, but manufacturing cost increases
Solution Approach 1:
The patent modifies the chemical composition parameters of the binder by incorporating hydrophobic additives and optimizing the resin formulation. This allows the binder to maintain effective bonding with reduced quantity in high humidity conditions, directly addressing the contradiction between bonding reliability and binder consumption
Solution Approach 2:
The patent creates a composite binder system combining hydrophobic additives with traditional resin components. This composite formulation enhances water resistance and bonding performance while reducing the overall amount of binder needed, resolving the contradiction between reliability and quantity
2Productivity
If plant speed is increased to improve productivity, then production efficiency is improved, but binder penetration into wood material increases
Solution Approach 1:
The patent applies preliminary treatment to the binder composition before application, such as pre-mixing with hydrophobic additives or pre-heating to optimize viscosity. This preliminary preparation ensures that the binder maintains proper adhesion characteristics even at high production speeds, preventing excessive penetration into the wood material
Solution Approach 2:
The patent adjusts physical parameters of the binder such as viscosity and application temperature to optimize performance at high line speeds. By modifying these parameters, the binder maintains sufficient surface adhesion during rapid processing without penetrating excessively into the wood substratum
3Speed
If hardeners or aggregates are used to accelerate heat introduction into chip or fiber cake, then curing speed is improved, but pre-curing of binders during system downtimes occurs
Solution Approach 1:
The patent introduces an intermediary substance or mechanism that facilitates heat transfer to the binder without triggering premature curing reactions. This intermediary allows accelerated curing during active production while maintaining binder stability during system downtimes, resolving the contradiction between curing speed and compositional stability
4Strength
If binder is allowed to remain in contact with wood material for longer to ensure thorough bonding, then bond strength is improved, but binder penetration into wood material increases
Solution Approach 1:
The patent modifies the chemical and physical parameters of the binder formulation, including molecular weight distribution, functional group composition, and hydrophobicity. These parameter changes enable the binder to achieve adequate bond strength with shorter contact time and reduced penetration into the wood material
Solution Approach 2:
The patent replaces reliance on extended mechanical contact time with chemical mechanisms for achieving bond strength. By incorporating reactive additives and optimizing resin chemistry, the binder achieves effective bonding through chemical interaction rather than prolonged physical contact, reducing penetration into the wood substratum
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 allows for controlled curing and reduced binder penetration, enabling fast, safe, and cost-effective wood-based material production with improved product quality.
Implementation Method 1
at least one phase transfer catalyst for accelerating the curing of the polymer adhesive
Implementation Method 2
a hydrophilizing agent comprising or formed from at least one silane compound for increasing the hydrophilicity of the polymer adhesive and/or for reducing the penetration of the polymer adhesive into the material to be bonded
Data Source
AI summary
The invention relates to a binder composition for manufacturing a wood-based material, a method for manufacturing such a wood-based material and such a wood-based material. In order to provide a binder composition for manufacturing a wood-based material, in which the speed of curing can be specifically controlled and at the same time diffusion of the binder into the wood material to be bound is prevented in the best possible way, thereby ensuring a safe, fast and cost-effective manufacturing process with the lowest possible use of binder, fast and cost-effective manufacturing process with the lowest possible binder consumption without reducing the product quality, it is provided that the binder composition comprises an organic phase having at least one polymer adhesive, an aqueous phase, at least one phase transfer catalyst for accelerating the curing of the polymer adhesive and a hydrophilizing agent comprising or formed from at least one silane compound for increasing the hydrophilicity of the polymer adhesive and/or for reducing the penetration of the polymer adhesive into the material of the wood-based material to be bonded.