PMID- 33049515
OWN - NLM
STAT- MEDLINE
DCOM- 20201214
LR  - 20201214
IS  - 1879-2456 (Electronic)
IS  - 0956-053X (Linking)
VI  - 119
DP  - 2021 Jan 1
TI  - Plastic waste from marine environment: Demonstration of possible routes for 
      recycling by different manufacturing technologies.
PG  - 101-110
LID - S0956-053X(20)30540-7 [pii]
LID - 10.1016/j.wasman.2020.09.029 [doi]
AB  - The increasing amount of marine plastic waste poses challenges including, not 
      only the collection, but also the subsequent recyclability of the plastic. An 
      artificial accelerated weathering procedure was developed, which modelled the 
      marine environment and investigated the recyclability of weathered and 
      non-weathered PET. Marine conditions were simulated for poly(ethylene 
      terephthalate) (PET) bottle material and high-density polyethylene (HDPE) cap 
      material. It consisted of 2520 h cyclical weathering, alternating the sample 
      between a salt spray and a Xenon-chamber-this corresponds to roughly 3-4 years on 
      the surface of an ocean. It was proved that the molecular weight of PET is a 
      function of weathering time and can be described mathematically. Microscopic 
      examination of the surface of the PET bottles and HDPE caps proved that these 
      surfaces were damaged. After weathering, manufacturing tests were performed on 
      the PET material by extrusion, injection moulding, 3D printing and thermoforming. 
      Quantitative comparison between products manufactured by the same technology was 
      performed in order to compare the qualities of products made from original PET, 
      non-weathered PET waste, which was the example of classical recycling, and 
      weathered PET. In the case of products made from weathered PET, certain 
      mechanical and optical properties (e.g. impact strength and transparency) were 
      significantly impaired compared to the original PET and the recycled, 
      non-weathered PET. Certain other properties (e.g. strength and rigidity) did not 
      change significantly. It was proved that the samples from weathered plastic 
      material can be successfully recycled mechanically and used to manufacture 
      plastic products.
CI  - Copyright (c) 2020 The Authors. Published by Elsevier Ltd.. All rights reserved.
FAU - Ronkay, F
AU  - Ronkay F
AD  - Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest 
      University of Technology and Economics, H-1111 Budapest, Muegyetem rkp. 3, 
      Hungary; Imsys Ltd, Material Testing Laboratory, Mozaik Street 14/A, H-1033 
      Budapest, Hungary.
FAU - Molnar, B
AU  - Molnar B
AD  - Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest 
      University of Technology and Economics, H-1111 Budapest, Muegyetem rkp. 3, 
      Hungary; Imsys Ltd, Material Testing Laboratory, Mozaik Street 14/A, H-1033 
      Budapest, Hungary.
FAU - Gere, D
AU  - Gere D
AD  - Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest 
      University of Technology and Economics, H-1111 Budapest, Muegyetem rkp. 3, 
      Hungary.
FAU - Czigany, T
AU  - Czigany T
AD  - Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest 
      University of Technology and Economics, H-1111 Budapest, Muegyetem rkp. 3, 
      Hungary; MTA-BME Research Group for Composite Science and Technology, H-1111 
      Budapest, Muegyetem rkp. 3, Hungary. Electronic address: czigany@eik.bme.hu.
LA  - eng
PT  - Journal Article
DEP - 20201010
PL  - United States
TA  - Waste Manag
JT  - Waste management (New York, N.Y.)
JID - 9884362
RN  - 0 (Plastics)
RN  - 0 (Polyethylene Terephthalates)
RN  - 9002-88-4 (Polyethylene)
SB  - IM
MH  - *Plastics
MH  - Polyethylene
MH  - Polyethylene Terephthalates
MH  - *Recycling
MH  - Technology
OTO - NOTNLM
OT  - Global environmental change
OT  - Marine waste
OT  - Microplastic
OT  - PET bottle
OT  - Recyclability
OT  - Sustainable development
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/10/14 06:00
MHDA- 2020/12/15 06:00
CRDT- 2020/10/13 20:13
PHST- 2020/04/06 00:00 [received]
PHST- 2020/07/27 00:00 [revised]
PHST- 2020/09/17 00:00 [accepted]
PHST- 2020/10/14 06:00 [pubmed]
PHST- 2020/12/15 06:00 [medline]
PHST- 2020/10/13 20:13 [entrez]
AID - S0956-053X(20)30540-7 [pii]
AID - 10.1016/j.wasman.2020.09.029 [doi]
PST - ppublish
SO  - Waste Manag. 2021 Jan 1;119:101-110. doi: 10.1016/j.wasman.2020.09.029. Epub 2020 
      Oct 10.