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Polymers
Special Issues
Advances in Processing of Bio-Based Polymeric Materials
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Advances in Processing of Bio-Based Polymeric Materials

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Processing and Engineering".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 3570

Special Issue Editors

Prof. Dr. José António Covas

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Guest Editor
Department of Polymer Engineering, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
Interests: polymer processing and micro-processing (monitoring, optimization, technology, biodegradable materials); compounding (preparation of composites and nanocomposites, polymer blending and modification); additive manufacturing; polymer characterization (rheology and morphology)
Special Issues, Collections and Topics in MDPI journals
Dr. Loic Hilliou

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Guest Editor
IPC-Institute forPolymers and Composites, University of Minho, Campus de Azurém, 4800 - 058 Guimarães, Portugal
Interests: structure–property–processing parameter relationships in polymer systems; extrusion; rheo-optics; in-process monitoring; rheology; bio-based and biodegradable polymers; carrageenan; hydrogel
Dr. Paulo Francisco Teixeira

E-Mail Website
Guest Editor
Centre for Nanotechnology and Smart Materials (CeNTI), Rua Fernando Mesquita | 2785 4760-034 VN Famalicão | Portugal
Interests: polymer extrusion; in-process monitoring; rheo-optics; rheology; nanocomposites; polymer blends; bio-based and biodegradable polymers

Special Issue Information

In recent years, environmental and economic concerns have stimulated the development and production of bio-based polymers and materials. Bio-based polymers, also known as bioplastics, are organic materials produced from renewable carbon, that is, from biomass and, therefore, not based on fossil/petroleum resources. Bio-based polymers and their related functional composite materials demonstrate great potential and are expected to be the materials of the future. Due to the widespread dependence on polymers, scientific and engineering efforts are carried out for the innovation and advancement of these materials.

In this Special Issue, we aim to present valuable findings regarding “Advances in Processing of Bio-Based Polymeric Materials”. This research area covers diverse fields but intends to meet a single objective: to introduce more sustainable and economically attractive products and processes in the market, thus aligning with societal concerns about both the environment and a green economy. Therefore, this Special Issue welcomes contributions reporting fundamental progress in the formulation of bio-based alternatives to fossil/petroleum-based plastics; the development of new bio-based additives and greener processes; the modification of nature-based polymers; and the processing of these materials using either conventional or innovative technologies to convert them in useful products.

Keywords

  • morphology–processing–property correlations
  • polymer processing
  • extrusion
  • injection-moulding
  • bio-based polymers
  • bionanocomposites
  • biocomposites
  • green processing

Published Papers (1 paper)

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Research

16 pages, 5571 KiB  
Article
Rice Hull-Derived Carbon for Supercapacitors: Towards Sustainable Silicon-Carbon Supercapacitors
by Changwei Li, Honglei Chen, Liqiong Zhang, Shenghui Jiao, Huixin Zhang, Junliu Zhang, Peng Li, Yubo Tao and Xin Zhao
Polymers 2021, 13(24), 4463; https://doi.org/10.3390/polym13244463 - 20 Dec 2021
Cited by 12 | Viewed by 3038
Abstract
A simple and effective mixing carbonization-activation process was developed to prepare rice hull-derived porous Si–carbon materials. The morphologies and pore structures of the materials were controlled effectively without any loading or additions at various carbonization temperatures. The structures of the samples changed from [...] Read more.
A simple and effective mixing carbonization-activation process was developed to prepare rice hull-derived porous Si–carbon materials. The morphologies and pore structures of the materials were controlled effectively without any loading or additions at various carbonization temperatures. The structures of the samples changed from large pores and thick walls after 800 ∘C carbonization to small pores and thin walls after 1000 ∘C carbonization. An additional alkali activation–carbonization process led to coral reef-like structures surrounded by squama in the sample that underwent 900 ∘C carbonization (Act-RH-900). This optimal material (Act-RH-900) had a large specific surface area (768 m2 g−1), relatively stable specific capacitance (150.8 F g−1), high energy density (31.9 Wh kg−1), and high-power density (309.2 w kg−1) at a current density of 0.5 A g−1 in 1 M KOH electrolyte, as well as a good rate performance and high stability (capacitance retention > 87.88% after 5000 cycles). The results indicated that Act-RH-900 is a promising candidate for capacitive applications. This work overcomes the restrictions imposed by the complex internal structure of biomass, implements a simple reaction environment, and broadens the potential applicability of biomass waste in the field of supercapacitors. Full article
(This article belongs to the Special Issue Advances in Processing of Bio-Based Polymeric Materials)
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