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Polymers
Special Issues
Epoxy Polymers and Composites
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Epoxy Polymers and Composites

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

Deadline for manuscript submissions: 30 December 2024 | Viewed by 351

Special Issue Editors

Dr. Zhengguang Heng

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Guest Editor
State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
Interests: advanced resin and composites; polymatic ablation-resistant materials; radiation protection materials
Dr. Yang Chen

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Guest Editor
The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
Interests: high-performance resin design; resin-based ablation-resistant materials; structural-wave-absorbing integrated materials
Prof. Dr. Huawei Zou

E-Mail Website
Guest Editor
State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
Interests: polymatic heat protection materials; advanced resin-based composites; high-performance functional forms

Special Issue Information

Dear Colleagues,

Epoxy resin plays a significant role in modern industry. Epoxy products in various forms such as coatings, adhesives, advanced composites matrixes are extensively employed in the fields of aerospace, electronic information, rail transit, and construction.

Currently, the development of epoxy polymers and composites is advancing towards high performance, multifunctionality, and environmental sustainability. However, some challenges remain. For instance, traditional epoxy resins possess a relatively low toughness; researchers lack a systematic and in-depth understanding of cross-linked networks, their performance and the low-cost preparation of resins and their composites; and the performance of new eco-friendly epoxy resins is inferior to that of traditional resins.

Therefore, the aim of this Special Issue is to describe and analyze the development of novel materials, technologies and innovations in the field of epoxy polymers and composites. The scope of the Special Issue includes, but is not limited to, the following:

  • New epoxy resins;
  • Epoxy-based polymers for high performance;
  • Functional epoxies;
  • Green, recycle and self-healing epoxies;
  • Interface modification of epoxy composites;
  • Epoxy composites processing;
  • New analysis and testing methods;
  • Epoxy and its composites simulation, containing DFT, MS, FEA, etc.

Dr. Zhengguang Heng
Dr. Yang Chen
Prof. Dr. Huawei Zou
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. Polymers 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 2700 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

  • new epoxy resins design
  • relationship between crosslink structure and properties
  • computational simulation
  • epoxy resins and composite processing
  • new analysis and characterization methods

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Published Papers (1 paper)

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Research

19 pages, 6946 KiB  
Article
Fatigue Behaviour of High-Performance Green Epoxy Biocomposite Laminates Reinforced by Optimized Long Sisal Fibers
by B. Zuccarello, C. Militello and F. Bongiorno
Polymers 2024, 16(18), 2630; https://doi.org/10.3390/polym16182630 (registering DOI) - 18 Sep 2024
Viewed by 65
Abstract
In recent decades, in order to replace traditional synthetic polymer composites, engineering research has focused on the development of new alternatives such as green biocomposites constituted by an eco-sustainable matrix reinforced by natural fibers. Such innovative biocomposites are divided into two different typologies: [...] Read more.
In recent decades, in order to replace traditional synthetic polymer composites, engineering research has focused on the development of new alternatives such as green biocomposites constituted by an eco-sustainable matrix reinforced by natural fibers. Such innovative biocomposites are divided into two different typologies: random short fiber biocomposites characterized by low mechanical strength, used for non-structural applications such as covering panels, etc., and high-performance biocomposites reinforced by long fibers that can be used for semi-structural and structural applications by replacing traditional materials such as metal (carbon steel and aluminum) or synthetic composites such as fiberglass. The present research work focuses on the high-performance biocomposites reinforced by optimized sisal fibers. In detail, in order to contribute to the extension of their application under fatigue loading, a systematic experimental fatigue test campaign has been accomplished by considering four different lay-up configurations (unidirectional, cross-ply, angle-ply and quasi-isotropic) with volume fraction Vf = 70%. The results analysis found that such laminates exhibit good fatigue performance, with fatigue ratios close to 0.5 for unidirectional and angle-ply (±7.5°) laminates. However, by passing from isotropic to unidirectional lay-up, the fatigue strength increases significantly by about four times; higher increases are revealed in terms of fatigue life. In terms of damage, it has been observed that, thanks to the high quality of the proposed laminates, in any case, the fatigue failure involves the fiber failure, although secondary debonding and delamination can occur, especially in orthotropic and cross-ply lay-up. The comparison with classical synthetic composites and other similar biocomposite has shown that in terms of fatigue ratio, the examined biocomposites exhibit performance comparable with the biocomposites reinforced by the more expensive flax and with common fiberglass. Finally, appropriate models, that can be advantageously used at the design stage, have also been proposed to predict the fatigue behavior of the laminates analyzed. Full article
(This article belongs to the Special Issue Epoxy Polymers and Composites)
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