Certech provides support and expertise for characterization of VOC and odor emissions, as well as solutions for odor remediation and development of low odor/low VOC materials.
During PRSE 2024 show, Zeochem (www.zeochem.com – one of the leading manufacturers of adsorbents, including zeolite molecular sieves) launched the new ZEOflair™ powder odor removal additives designed for mechanically recycled resins.
Certech supported Zeochem for the evaluation of the efficiency of these developments through :
• production of small batches of additivated PCR materials in controlled environment to avoid cross-contaminations (extrusion)
• global odor evaluation (intensity and qualitative assessment) by trained expert panellists
• evaluation of the odor concentration by dynamic olfactometry according to EN 13725
• evaluation of the VOC emissions of injected plates produced from the additivated batches of PCR materials in microchambers (µCTE-TD-GC-MS according to ISO 12219-3)
• characterization of the mechanical properties of the injected plates (impact and tensile properties)
For the identification of the odorous compounds and chemistry/odour correlation, Certech provides also GC-TOFMS/Sniffing analysis. The Time-of-Flight Mass Spectrometer (TOFMS) offers a powerful combination of sensitivity and spectral quality for improved screening of VOC and detection of odorous compounds at trace levels. Combining GC-TOFMS/Sniffing with comprehensive two-dimensional chromatography GC×GC-HRTOFMS enables the characterization of complex samples such as PCR materials by enhancing the peak capacity and the separation power.