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Materiais 2023, XXI Congresso da Sociedade Portuguesa De Materiais and XII International Symposium on Materials

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: closed (10 September 2023) | Viewed by 1533

Special Issue Editors


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Guest Editor
Department of Polymers Engineering, University of Minho, Campus of Azurém, 4804-533 Guimarães, Portugal
Interests: carbon nanomaterials—surfaces and interfaces; polymer nanocomposites—preparation and characterization; nanostructured composites; few-layer graphene production; plastics waste—recycling and microplastics analysis
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
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

Special Issue Information

Dear Colleagues,

This Special Issue will publish papers of authors delivering oral/poster presentations at the Materiais 2023, XXI Congresso da Sociedade Portuguesa de Materiais and XII International Symposium on Materials, held in Guimarães, Portugal, 3–6 April 2023.

MATERIAIS 2023 will explore the latest scientific and technical developments in Materials Science and Engineering and related areas, bridging different knowledge domains under the scope of the main theme of “Sustainability for a Future”. The International Symposium will cover all materials areas, namely materials for environmental protection and remediation, biomedical, bioderived and bio-inspired materials, materials for the digital transformation, materials for mobility, materials for structural and multifunctional applications, materials for energy and power generation, and materials and cultural heritage. Submissions related to these topics can be considered for this Special Issue.

Dr. Maria da Conceição Paiva
Prof. Dr. José António Covas
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. Materials 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 2600 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

  • environmental remediation (green materials, nanomaterials, porous materials, catalytic materials, materials for pollutant adsorption, recycling, application of recycled materials)
  • biomaterials, bioderived and bio-inspired materials and materials for biomedical applications
  • digital transformation (physical models for advanced materials; open-source software tools for materials processing simulations)
  • structural applications and functional materials (ceramics, polymers, metals and alloys, composites, materials for sensing and actuation)
  • energy and power generation (materials for batteries, solar panels, wind turbines, their recycling and recovery)
  • cultural heritage (materials for surface cleaning and protection, biocleaning, advanced materials for repair and consolidation of heritage)

Published Papers (1 paper)

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Research

19 pages, 1295 KiB  
Article
Numerical Simulations of Carbon-Fibre Impregnation with a Polymer as an Anisotropic Permeability Medium
by Daniel Gomes, Luís Amorim, Raquel M. Santos and Nelson D. Gonçalves
Materials 2023, 16(20), 6627; https://doi.org/10.3390/ma16206627 - 10 Oct 2023
Viewed by 773
Abstract
The impregnation process of carbon fibres with polymers is challenging to model due to the system’s complexity, particularly concerning the following aspects: the complex rheology of the polymeric matrices and the presence of solid, continuous fibres, both with anisotropic properties, and the interaction [...] Read more.
The impregnation process of carbon fibres with polymers is challenging to model due to the system’s complexity, particularly concerning the following aspects: the complex rheology of the polymeric matrices and the presence of solid, continuous fibres, both with anisotropic properties, and the interaction between solid and fluid, which can change the displacement of fibres into a cyclic dependence. In this work, an interesting approach was considered by setting the fibres as a porous medium whose properties were calculated with microscale/macroscale cycle modelling. In the microscale modelling stage, two main assumptions can be made: (i) a homogeneous distribution with a representative cell or (ii) a stochastic distribution of fibres. The solution to the abovementioned flow and fibre distribution problem can severely differ with only a slight change in a single parameter for a given set of processing parameters. Therefore, the influence of some of them during the fibre impregnation process was evaluated, allowing a shortcut for the polymer through a gap between fibres and the bottom wall of the extrusion die. The range of investigated values regarding the gap enables one to cover good impregnation conditions up to the occurrence of the shortcut and consequent poor impregnation quality. These studies were performed with numerical simulations with circa 126,000 degrees of freedom, considering the discretisation mesh elements and the unknowns (pressure and two velocity components). Full article
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