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Life cycle assessment of recycling metallised food packaging plastics using mechanical, thermal and chemical processes.
Heliyon
August 2024
Department of Environmental Technology, Kaunas University of Technology, Radvilenu str. 19, LT-50254, Kaunas, Lithuania.
Single treatment of metallised food packaging plastics waste (MFPW) has shown disappointing results with recycling rate <20 % due to its complex structure consisting of 10 % aluminium (Al) and 90 % mixed plastic films made of PE, PP, PS, PET, etc. Besides, it is generating many emissions and residues that must be landfilled making it difficult to integrate them into the circular economy. Therefore, a multi-stage recycling (MSR) approach has recently been developed using several sequential mechanical, thermal and chemical processes to recover energy and Al from MFPW with additional revenue for recycling plant operators.
View Article and Find Full Text PDFEffect of aluminum leaching pretreatment on catalytic pyrolysis of metallised food packaging plastics and its linear and nonlinear kinetic behaviour.
Sci Total Environ
October 2022
Mechatronics Systems Engineering Department, October University for Modern Sciences and Arts-MSA, Giza, Egypt.
This research aims to study the effect of aluminum (Al) leaching pre-treatment on the catalytic pyrolysis of metallised food packaging plastics waste (MFPW). The experiments started with removal of Al from MFPW using leaching process to prepare Al-free mixed plastic waste (MPW). The catalytic pyrolysis of MPW over ZSM-5 zeolite catalyst was carried out using thermogravimetric (TG) analysis coupled with FTIR, while GC-MS was used to observe the compounds of the volatile products.
View Article and Find Full Text PDFCold spray metal embedment: an innovative antifouling technology.
Biofouling
July 2012
School of Marine & Tropical Biology, James Cook University, Townsville, Queensland, Australia.
The study demonstrates that embedment of copper particles into thermoplastic polymers (polymers) using cold spray technology is an effective deterrent against fouling organisms. Two polymers, high-density polyethylene (HDPE) and nylon were metallised with copper powder using cold spray technology. After 250 days in the field, Cu-embedded HDPE and copper plate controls were completely free of hard foulers compared to Cu-embedded nylon and polymer controls which were heavily fouled with both soft and hard fouling.
View Article and Find Full Text PDFThe thermal protection offered by lightweight survival systems.
Aviat Space Environ Med
October 1980
The thermal protection offered by lightweight survival systems was evaluated in a mountain environment. When subjects were exposed for 3 h in bags manufactured from polythene, in metallised plastic sheeting, and in a casualty bag incorporating MPS, no significant differences in thermal benefit were found. The protection offered by each system was comparable and the practical experience gained in the field would suggest that the simple polythene bag was superior to the MPS bag when one considers strength, durability, multiplicity of roles, and cheapness.
View Article and Find Full Text PDFThe thermal properties of a survival bag incorporating metallised plastic sheeting.
Aviat Space Environ Med
April 1980
Five male subjects were exposed to a cooling environment equivalent to 1082 W/M2. The subjects wore a clothing assembly with insulation properties of 1.55 clo.
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