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Sustainability
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Research of Renewable Materials and Biological Products: towards Sustainability
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Research of Renewable Materials and Biological Products: towards Sustainability

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

Deadline for manuscript submissions: closed (31 March 2022) | Viewed by 3963

Special Issue Editor

Dr. Johan Verbeek

E-Mail Website
Guest Editor
Plastics Centre of Excellence, Department of Mechanical Engineering, University of Auckland, Auckland, New Zealand
Interests: biopolymers; extrusions; reactive extrusion; polymer blends; proteins
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The world is waking up in respect to the plastic pollution problem, and over the last five years, we have seen tremendous efforts to react to the rapidly growing problem. The idea of a circular economy and sustainability is now almost old news. However, significant research into new products, design methods, use, and disposal is still required. This Special Issue aims to bring together research into the adaption of design, manufacturing, and polymer material research for a sustainable, circular future. This includes research on transforming the linear plastics industry into a circular model and how materials scientists respond to this and covers a range of materials that fit into this, from redesigned recycled petrochemical materials to biological products and how these fit into the circular economy.

Assoc. Prof. Johan Verbeek
Guest Editor

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
  • plastics and the circular economy
  • bio-based materials
  • design for recycling
  • biological products
  • sustainable manufacturing
  • bio-based economy

Published Papers (1 paper)

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Research

15 pages, 2636 KiB  
Article
Reprintable Paste-Based Materials for Additive Manufacturing in a Circular Economy
by Marita Sauerwein, Jure Zlopasa, Zjenja Doubrovski, Conny Bakker and Ruud Balkenende
Sustainability 2020, 12(19), 8032; https://0-doi-org.brum.beds.ac.uk/10.3390/su12198032 - 29 Sep 2020
Cited by 14 | Viewed by 3453
Abstract
The circular economy requires high-value material recovery to enable multiple product lifecycles. This implies the need for additive manufacturing to focus on the development and use of low-impact materials that, after product use, can be reconstituted to their original properties in terms of [...] Read more.
The circular economy requires high-value material recovery to enable multiple product lifecycles. This implies the need for additive manufacturing to focus on the development and use of low-impact materials that, after product use, can be reconstituted to their original properties in terms of printability and functionality. We therefore investigated reprintable materials, made from bio-based resources. In order to equally consider material properties and recovery during development, we took a design approach to material development. In this way, the full material and product life cycle was studied, including multiple recovery steps. We applied this method to the development of a reprintable bio-based composite material for extrusion paste printing. This material is derived from natural and abundant resources, i.e., ground mussel shells and alginate. The alginate in the printing paste is ionically cross-linked after printing to create a water-resistant material. This reaction can be reversed to retain a printable paste. We studied paste composition, printability and material properties and 3D printed a design prototype. Alginate as a binder shows good printing and reprinting behaviour, as well as promising material properties. It thus demonstrates the concept of reprintable materials. Full article
(This article belongs to the Special Issue Research of Renewable Materials and Biological Products: towards Sustainability)
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