Decorative Panel Core Composition for Heat-Stable Floor Covering
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Solution Overview
Problem
Traditional MDF/HDF-based decorative panels are hygroscopic, affecting their lifetime and durability, while PVC-based panels lack temperature resistance and easily deform under heating sources. There is a need for improved core materials with better thermal stability, flexibility, and impact resistance.
Innovation Solution
A core composition comprising a polymer and mineral matrix alloy with elastic particles chemically bonded through covalent bonds, forming a thermally stable block copolymer that balances functional and processing properties, using renewable and biodegradable polymers, and incorporating mineralizers to reduce hygroscopicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If MDF/HDF based core layer is used, then the panel provides good processing properties and ease of manufacture, but the panel exhibits hygroscopic nature affecting lifetime and durability
Solution Approach 1:
The patent applies composite materials by combining polymer matrix (such as polyolefin) with mineral fillers (such as calcium carbonate) and elastic particles to create a core layer that integrates the benefits of each component: the polymer provides flexibility and resistance to hygroscopicity, the minerals provide structural stability and processing ease, and the elastic particles enhance impact resistance. This composite approach resolves the contradiction by achieving both ease of manufacture and improved reliability.
2Reliability
If PVC based core material is used, then the panel achieves waterproof properties and improved durability, but the panel exhibits poor temperature resistance and easily deforms under heating sources
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition and molecular structure of the core material. Specifically, it uses polymer matrices with controlled molecular weights and compositions (such as polyolefins with specific melt flow rates) and incorporates mineral fillers and elastic particles in optimized ratios. These parameter adjustments enable the core material to achieve both waterproof properties and improved temperature resistance, preventing deformation under heating sources while maintaining durability.
3Strength
If core material with high elasticity is used, then the panel provides improved impact resistance and flexibility, but the panel may exhibit reduced structural stability and increased deformation under load
Solution Approach 1:
The patent resolves this contradiction through composite materials by creating a balanced formulation where elastic particles (such as rubber particles) dispersed in a polymer matrix provide impact resistance and flexibility, while the polymer matrix itself and mineral fillers (such as calcium carbonate) maintain structural stability. The synergistic interaction between these components ensures that the core layer achieves both high elasticity for impact resistance and sufficient rigidity for structural stability, preventing excessive deformation under load.
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 provides a core material with enhanced thermal stability, flexibility, and impact resistance, addressing the limitations of MDF/HDF and PVC-based panels by offering improved durability and resistance to deformation.
Implementation Method 1
the elastic particles are bond to the polymer and/or mineral matrix by means of a covalent bond
Data Source
AI summary
A decorative panel includes a core provided with an upper side and a lower side; a decorative top structure affixed on the upper side of the core; a first panel edge including a first coupling profile, and a second panel edge including a second coupling profile being designed to engage interlockingly with the first coupling profile of an adjacent panel, both in horizontal direction and in vertical direction. The core includes an alloy of a polymer matrix and/or a magnesium cement based matrix and elastic particles dispersed in the matrix. The elastic particles are bond to the polymer matrix and/or the magnesium cement based matrix. The elastic particles have a greater elasticity than the polymer matrix and/or the magnesium cement based matrix. The polymer matrix and/or the magnesium cement based matrix includes thermoplastic material.