Mineral-Based Building Panel Structure for Durable Locking Joints
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Solution Overview
Problem
Existing mineral-based panels, such as magnesium oxide and cement boards, are brittle and lack robust locking systems, necessitating improvements for durability and strength.
Innovation Solution
Incorporating a rigid layer with impact modifiers and acrylic processing aids, such as PVC, into the panel structure to enhance the locking system's strength and flexibility, while using non-hydraulic cement and adhesives like polyurethane for attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mineral-based core is used to provide fire resistance and water resistance, then the panel achieves sustainability and dimensional stability, but the panel becomes brittle and lacks robust locking systems
Solution Approach 1:
The patent applies composite materials by combining a mineral-based core (magnesium oxide board) with a rigid layer (PVC-based composition) to create a panel that exhibits both the fire and water resistance of the mineral core and the strength and flexibility of the rigid layer. This composite structure resolves the contradiction by integrating materials with complementary properties.
Solution Approach 2:
The patent changes the physical and chemical parameters of the rigid layer by incorporating specific additives (impact modifiers, acrylic processing aids) into the PVC composition. These parameter changes enhance the layer's toughness and flexibility, allowing it to compensate for the brittleness of the mineral-based core while maintaining structural integrity for locking systems.
2Strength
If a rigid layer with impact modifiers is incorporated to enhance locking system strength, then the locking system becomes more durable, but the panel structure becomes more complex
Solution Approach 1:
The patent merges the locking system structure with the rigid layer itself, rather than treating them as separate components. The rigid layer is formed as an integral part of the panel structure that incorporates the locking system, thereby enhancing locking strength while minimizing additional structural complexity.
Solution Approach 2:
The patent applies local quality by concentrating the enhanced material properties (impact modifiers, acrylic processing aids) specifically in the rigid layer where the locking system is located. This localized enhancement provides the necessary strength and durability for the locking system without requiring the entire panel structure to be complex or overly reinforced.
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 stronger and more durable locking system that withstands mechanical forces without breaking, ensuring effective assembly and stability.
Implementation Method 1
The rigid layer comprises at least one of an impact modifier or an acrylic processing aid
Implementation Method 2
adhesives like polyurethane for attachment
Data Source
AI summary
A building panel, such as floor panel, including a core, the panel further including an upper arrangement being attached to an upper side of the core and/or a lower arrangement being attached to a lower side of the core. At least one of the core, the upper arrangement and lower arrangement is mineral-based, and at least one of upper and/or lower arrangement includes at least one rigid layer. The rigid layer includes at least one of an impact modifier or an acrylic processing aid.