Decoupling Mat Moisture Buffering Expanded Clay
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Solution Overview
Problem
Existing decoupling mats for ceramic coverings, such as tiles, face challenges in achieving a strong bond and moisture management during the thin-bed method installation, particularly in ensuring stability and absorbing residual moisture.
Innovation Solution
The decoupling mat incorporates a self-adhesive top layer, preferably made of butyl rubber, and an absorbent hard material like expanded clay or latent heat storage materials, along with a fleece or plastic layer for moisture absorption and a binding agent to connect smaller base bodies, forming a stable filling that can absorb and release moisture. Additionally, it can include rigid foam or biopolymer materials for enhanced stability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the cups are filled with absorbent hard material, then moisture absorption capability is improved, but structural stability may be compromised
Solution Approach 1:
The patent combines absorbent hard material (such as expanded clay, perlite, or vermiculite) with a binding agent to create a composite filling material. This composite structure allows the mixture to absorb moisture while the binding agent maintains structural integrity and prevents the loose granular material from compromising stability.
Solution Approach 2:
The patent specifies optimal density ranges for the filling material (0.2 to 0.8 g/cm³) and controls the moisture content of the absorbent hard material to achieve the desired balance between absorption capability and structural stability. By adjusting these parameters, the system optimizes both moisture management and mechanical strength.
2Strength
If a self-adhesive layer is added to the top layer, then bond strength is improved, but device complexity increases
Solution Approach 1:
The patent integrates the self-adhesive layer as part of the top layer structure, combining the protective cover function with the bonding function in a single integrated component. This merging approach provides strong adhesion to the ceramic covering while avoiding the need for separate adhesive applications or additional complex assembly steps.
3Temperature
If latent heat storage material is incorporated, then thermal regulation is improved, but manufacturing complexity increases
Solution Approach 1:
The patent utilizes the porous structure of the absorbent hard material (expanded clay, perlite, or vermiculite) to incorporate latent heat storage material. The existing porosity and void spaces in these materials provide natural cavities for containing phase change materials, enabling thermal regulation functionality without requiring additional manufacturing steps or complex encapsulation processes.
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 improved stability and moisture management by absorbing excess moisture and releasing it during dry periods, while also allowing for the integration of functional materials like latent heat storage, ensuring a strong bond and flexibility in the decoupling mat.
Implementation Method 1
the absorbency can contribute to absorbing residual moisture, possibly also residual moisture from the surrounding soil area, especially if the cups are not completely sealed against moisture. In particular, a kind of moisture buffer can also be achieved in this way, which absorbs moisture in the event of an oversupply and then releases it again at different times in the event of dry periods.
Implementation Method 2
a binding agent which, if smaller base bodies are formed, connects them to form an overall body that fills a bowl
Implementation Method 3
Latent heat storage material, more preferably one based on paraffin and/or salt, is intended here in particular.
Implementation Method 4
the top layer is provided with a self-adhesive layer. This self-adhesive layer faces outwards.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a decoupling mat (1) with a continuous, and if appropriate first, fleece layer (13) as support layer, on which island-like areas (14) of a solid material are formed, and with a cover sheet (15) covering the tops of the island-like areas (14), and also a decoupling mat (1) with a continuous plastic sheet (2) produced, for example, by thermoforming and having wells (3) open at one side, and a cover sheet (4) applied to the plastic sheet preferably in order to cover the wells, wherein the wells (3) are filled. In order to make available an advantageous decoupling mat, it is proposed that the wells (3) are filled with an absorbent hard material, for example expanded clay.