Scratched-Coating Insulating Panel for Damp Tile Adhesion
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Solution Overview
Problem
Existing insulating panels made of expanded polystyrene or extruded polystyrene face issues with poor resistance to bending and damp, limited fire resistance, and inadequate adhesion to glues and cement mortars, particularly in damp environments, leading to poor structural integrity and tile adhesion.
Innovation Solution
A lightweight, self-supporting insulating panel with a foamed core and symmetrical vapor-resistant coating featuring a scratched surface to enhance adhesion, eliminating the need for cement-based materials and ensuring high resistance to tearing and vapor passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional EPS or XPS panels are used for thermal insulation, then thermal insulation performance is improved and weight is reduced, but resistance to bending and damp is poor and adhesion to glues and cement mortars is inadequate
Solution Approach 1:
The patent applies composite materials by combining the foamed insulating material (EPS or XPS) with a coating layer made of plastic material. This composite structure integrates the thermal insulation properties of the foam core with the mechanical strength, damp resistance, and adhesion properties of the plastic coating, resolving the contradiction between insulation performance and structural strength.
Solution Approach 2:
The patent applies local quality by adding a coating layer specifically on the outer surfaces of the panel. This localized treatment provides enhanced mechanical strength, damp resistance, and adhesion properties where needed (at the surfaces), while the internal foam structure maintains its lightweight insulation function.
2Strength
If protective films such as paper sheets or plastic plates are added to EPS or XPS panels, then resistance to bending and damp is improved, but thickness and specific weight increase significantly
Solution Approach 1:
The patent uses a thin film coating of plastic material applied directly to the foam panel surface. This thin film provides the necessary mechanical strength and damp resistance without adding significant weight or thickness, unlike traditional protective films such as paper sheets or rigid plastic plates.
Solution Approach 2:
The patent merges the protective function with the insulating panel by applying a coating layer that serves multiple functions simultaneously: it provides mechanical strength, damp resistance, and adhesion properties. This integration eliminates the need for separate protective films, reducing overall weight and thickness.
3Ease of manufacture
If conventional EPS or XPS panels are used, then cost is reduced and ease of manufacture is improved, but fire resistance is limited and surface adhesion is poor
Solution Approach 1:
The patent combines the cost-effective foam material with a plastic coating that provides improved fire resistance and surface adhesion. This composite structure maintains the ease of manufacture and low cost of the foam core while adding the reliability properties of the plastic coating layer.
Solution Approach 2:
The patent changes the surface parameters of the panel by applying a coating layer with different chemical and physical properties than the foam material. This coating provides improved fire resistance and adhesion characteristics while maintaining the overall cost-effectiveness and manufacturability of the panel.
4Reliability
If the coating surface is smooth, then vapor resistance is improved, but adhesion to glues and cement mortars is insufficient
Solution Approach 1:
The patent applies local quality by creating a scratched surface topology on the coating layer. This localized surface modification provides micro-roughness that enhances adhesion for glues and cement mortars, while the coating material itself maintains its vapor resistance properties.
Solution Approach 2:
The scratched surface creates a porous or micro-rough structure on the coating layer. This porous topology increases the surface area and provides mechanical interlocking for adhesives, improving adhesion while the coating material maintains its vapor barrier properties.
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 panel achieves improved adhesion to tiles and cement mortars, exceeding the EN1348 regulation's tearing resistance, facilitating easy installation in damp environments with reduced dust and cost, while maintaining structural integrity and fire resistance.
Implementation Method 1
which has an outer surface scratched (103) so as to optimize the grab to common glues or cement mortars for ceramic tiles
Implementation Method 2
coated symmetrically on both sides with a vapor-resistant layer
Data Source
AI summary
An insulating panel for use in construction has a central layer, a first water-resistant coating and a second water-resistant coating on opposite sides of the central layer. The first coating and the second coating are joined to the central layer with a glue layer or a thermo-adhesive material. Each of first coating and the second coating is a plastic sheet that is scratched or abraded.