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Plastic Recycling and Biopolymer Synthesis for Industrial Application

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Materials".

Deadline for manuscript submissions: 20 June 2025 | Viewed by 1248

Special Issue Editors


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Guest Editor
Department of Chemistry, School of Applied Sciences, The University of Huddersfield, Huddersfield HD1 3DH, UK
Interests: biorefining; biofuel; biochemical and biopolymers; waste valorisation; fermentation and bioprocessing
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Guest Editor
Department of Chemical Engineering, Tsinghua University, Beijing 10084, China
Interests: theory and methods of thermodynamics in complex systems; molecular simulation in conformational transformation; aggregation, reaction, and separation behaviours of complex systems
Special Issues, Collections and Topics in MDPI journals
1. Institute of Industrial Biotechnology, Government College University Lahore, Lahore 54000, Pakistan
2. School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DR, UK
Interests: biofuel; bioenergy; lignocellulosic biomass; catalysis; industrial enzymes; fermentation technology; industrial microbiology; bioethanol

Special Issue Information

Dear Colleagues,

Plastic waste is one of the major classes of solid waste raising significant concern worldwide. In 2017, 438 millions tonnes of plastic were produced worldwide, mainly used for plastic packaging, building and construction industry, textile industry and others. Most of the plastic waste ends in landfill or incineration at the end of its useful life, while many synthetic plastics take over 100 years to degrade in the natural environment. Therefore, plastic recycling to reduce the impact on the environment and to reduce the depletion of non-renewable resources is a crucial approach to achieve the Sustainable Development Goals set by the UN.

Alternatively, a growing number of investigations have been carried out to synthesize biopolymers to replace crude-oil-based plastic in industrial applications, such as poly-lactic acid (PLA), poly-β-hydroxybutyrate (PHB) and alginate extracted from seaweed. These biopolymers have increasingly been used in various industries, providing a sustainable solution to plastic pollution.

In this Special Issue, original research articles and reviews related to plastic recycling and biopolymer synthesis are welcome. Research areas may include (but are not limited to) the following:

  1. Plastic recycling technology and its application;
  2. Biopolymer extraction, synthesis and design for large-scale industrial application;
  3. Sustainability assessment of new technologies or new products for the replacement of crude-oil-based plastics;
  4. Assessment of the environmental impact of plastic waste and its remediation.

We look forward to receiving your contributions.

Prof. Dr. Chenyu Du
Prof. Dr. Diannan Lu
Dr. Ali Nawaz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • plastic recycling
  • biopolymers
  • PET
  • waste valorisation
  • textiles
  • packaging
  • microplastics

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Published Papers (1 paper)

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Research

15 pages, 5870 KiB  
Article
Modelling the Constitutive Behaviour of Recycled PET for the Manufacture of Woven Fabrics
by Huidong Wei, Shan Lou, Martin Leeming and Ying Zhang
Sustainability 2025, 17(5), 2254; https://doi.org/10.3390/su17052254 - 5 Mar 2025
Viewed by 652
Abstract
Recycling polyethylene terephthalate (rPET) from packaging materials consumes a vast amount of energy and incurs significant economic and environmental costs. This study proposes directly recycling rPET into woven fabrics to eliminate reprocessing while still preserving the mechanical performance of the material. The mechanical [...] Read more.
Recycling polyethylene terephthalate (rPET) from packaging materials consumes a vast amount of energy and incurs significant economic and environmental costs. This study proposes directly recycling rPET into woven fabrics to eliminate reprocessing while still preserving the mechanical performance of the material. The mechanical properties of rPET were tested along two orthogonal directions, and the resulting test data were used to calibrate an elasto-plastic model in order to capture the constitutive behaviour of the material. Additionally, the virtual weaving of rPET fibres into fabrics was modelled using finite element analysis (FEA) to replicate the actual manufacturing process. The results show that rPET that is directly recycled into woven fabrics exhibits superior performance to the same material derived from reprocessing. A strong anisotropy of rPET materials was observed, with distinct elastic and ductile behaviours. The FEA simulation also revealed the critical role of the ductility of rPET fibres when used as warp yarns. The process parameters to achieve a successful weaving operation for different yarn configurations, taking into account the motion and tension of the fibres during manufacture, were also identified. A further sensitivity study highlights the influence of friction between the fibres on the tension force of warp yarns. The virtual manufacture-by-weaving model suggests that utilising rPET with a simplified recycling approach can lead to the sustainable manufacture of fabrics with broad industrial applications. Full article
(This article belongs to the Special Issue Plastic Recycling and Biopolymer Synthesis for Industrial Application)
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