Decorative Panel Polymer Tracers for Spectroscopic Recycling Sorting
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Solution Overview
Problem
The recycling of decorative panels is challenging due to the difficulty in recognizing, separating, and sorting polymer materials and additives within the panels, which vary in type, grade, and blend, making it hard to recycle them effectively.
Innovation Solution
Incorporating tracer materials into the decorative panels that can be identified by spectroscopy, such as atomic emission spectroscopy (AES), X-ray fluorescence (XRF), or Proton-induced X-ray Emission (PIXE), allows for the identification and separation of different materials and layers within the panels, facilitating recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If decorative panels use multiple polymer types, additives, grades and blends to achieve diverse material properties, then the functionality and performance of the panels are improved, but the difficulty of recognizing, separating, and sorting post-consumer panels for recycling increases
Solution Approach 1:
The patent applies the principle of using detectable markers (analogous to color changes) by incorporating tracer materials with specific spectroscopic signatures into the decorative panels. These tracer materials enable identification and sorting of different polymer types and compositions through spectroscopic analysis, resolving the contradiction between material diversity and identification difficulty
Solution Approach 2:
The patent introduces tracer materials as intermediary substances that facilitate the identification and sorting process. These tracer materials act as mediators between the complex polymer composition and the recycling sorting system, enabling easy detection and separation of different panel types without affecting the underlying material properties
2Ease of manufacture
If tracer materials are embedded in polymer matrices for identification, then the ease of recycling and sorting is improved, but the complexity of the manufacturing process increases
Solution Approach 1:
The patent merges the tracer material incorporation step with the existing polymer mixing and extrusion processes. By integrating tracer material addition into the conventional manufacturing workflow, the system achieves improved recyclability without significantly increasing overall manufacturing complexity
Solution Approach 2:
The patent employs universal tracer materials that can be applied across different polymer types and panel configurations. This multi-functional approach allows a single tracer material system to identify various polymer compositions, simplifying the manufacturing process while maintaining broad applicability for recycling identification
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 tracer materials enable efficient sorting and separation of panels and their layers, enabling recycling and potential deposit refunds, thus incentivizing recycling through a deposit-refund system.
Implementation Method 1
at least one tracer material embedded in and/or bonded to and/or provided onto said material, preferably a polymer comprising material, wherein said at least one tracer material is susceptible to be identified by means of spectroscopy
Data Source
AI summary
A decorative panel, in particular a decorative floor panel, including at least one core layer provided with an upper side and a lower side, and a decorative top structure affixed, either directly or indirectly, to said upper side of the core. Said panel, in particular said core, is at least partially composed of at least one polymer matrix embedding at least one tracer material susceptible to be identified by means of spectroscopy.