PET Flake Clumping Evaluation according APR PET-S-08 (Association of Plastic Recyclers)
During processing, PET flakes can be exposed to heat above 190°C up to 220°C. It is important that PET flakes do not stick together and form hard clumps when exposed to high temperatures and filled into a hopper. PET clumps can cause bridging in feed systems that prevent material flow. This test method can be used in the laboratory to evaluate whether low-melting polymers or other sources of contamination are present in washed and eluted PET flakes that can form clumps of PET flakes under heated conditions.
Klaus Behringer +49 441 94986-10 Klaus.Behringer@innoform.dePublicly appointed and sworn expert for plastic films and packaging as well as plastic food contact materials by the Oldenburg Chamber of Industry and Commerce (Download certificate of appointment)
Examinations in this area
PET Flake Clumping Evaluation according APR PET-S-08 (Association of Plastic Recyclers)