Analytical Metrology and Restabilization Procedures for Post-Consumer Flake
Stabilizing post-consumer flake requires baseline infrared oxidation metrology paired with balanced phenolic-phosphite packages to prevent melt chain scission.
DIN EN 15344
Meaning
European standard specifying the characterization of recycled polyethylene (PE) intended for use in the production of semi-finished and finished products. Standards such as din en 15344 establish the required properties and test methods to ensure that recycled material meets technical specifications for industrial moulding and extrusion.
Material Specification
Testing the density and melt mass flow rate provides the baseline data needed to verify the batch consistency of the reclaim. The application of din en 15344 involves documenting the filtration level and the presence of volatile matter that could cause defects during the heating phase.
Performance Metric
Assessing the impact strength and tensile properties allows the converter to adjust the tool design or the moulding parameters to accommodate the recycled content. The values derived from din en 15344 are compared against virgin resin datasheets to determine the necessary blending ratios for structural parts. Mechanical testing confirms that the regrind retains sufficient toughness for its intended use and provides the data required for quality assurance documentation.
This evaluation helps the processor maintain control over the mechanical integrity of the final product while maximizing the use of circular materials.
Contaminant Control
Measuring the level of non-polymeric impurities ensures that the recycled polyethylene does not cause blockages in the melt filter or introduce weak points in the polymer matrix. Adherence to these guidelines supports the stability of the supply chain by providing a common language for resin buyers and recyclers.