Removal of volatile organic compounds and odorous compounds for multilayer packaging recyclates using heated air purging

Multilayer packaging (MLP) is made from Polyethylene terephthalate (PET), Polyethylene (PE), Polypropylene (PP), Ethylene vinyl alcohol (EVOH), Polyvinyl chloride (PVC), and tie layer materials. MLPs are either burned or dumped in landfills after their use, which causes many hazards to humans and th...

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Bibliographic Details
Published in:Journal of physics. Conference series 2023-11, Vol.2652 (1), p.12005
Main Authors: Saini, Pragti, Bhati, Sampat Singh, Dutt, Dharm
Format: Article
Language:English
Subjects:
Cosmetics
Multilayers
Packaging
Physics
Polyethylene terephthalate
Polyvinyl chloride
VOCs
Volatile organic compounds
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Summary:Multilayer packaging (MLP) is made from Polyethylene terephthalate (PET), Polyethylene (PE), Polypropylene (PP), Ethylene vinyl alcohol (EVOH), Polyvinyl chloride (PVC), and tie layer materials. MLPs are either burned or dumped in landfills after their use, which causes many hazards to humans and the environment. MLPs are recycled in recycling facilities and converted into pellets to reuse them. However, the MLPs are strongly contaminated by volatile organic compounds and odorous compounds, which prevents their use in high-end applications, i.e., cosmetics, packaging, etc. In the research work, a remediation strategy is proposed to reduce VOCs and odorous compounds from MLP recyclates using heated air oven treatments, which are also easily scalable to pilot and industrial scales. VOCs and odor are reduced significantly without compromising the product’s mechanical, thermal, and other properties.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2652/1/012005