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Polymers
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Epoxy Polymers and Composites, Second Edition
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Epoxy Polymers and Composites, Second Edition

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

Deadline for manuscript submissions: 31 July 2026 | Viewed by 844

Special Issue Editors

Dr. Zhengguang Heng

E-Mail Website
Guest Editor
The 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
Special Issues, Collections and Topics in MDPI journals
Dr. Yang Chen

E-Mail Website
Guest Editor
National Key Laboratory of Advanced Polymer Materials, Polymer Research Institute, Sichuan University, Chengdu 610065, China
Interests: molecular structure design and preparation of high-performance resin; design and preparation of structural wave absorbing integrated materials; design and preparation of ablation resistant materials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Huawei Zou

E-Mail Website
Guest Editor
National Key Laboratory of Advanced Polymer Materials, Polymer Research Institute, Sichuan University, Chengdu 610065, China
Interests: mechanical and tribological properties in polyphenylene sulfide/polytetrafluoroethylene composites reinforced
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Epoxy resin plays a significant role in modern industry. Epoxy products in various forms such as coatings, adhesives and 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-composite processing;
  • New analysis and testing methods;
  • Epoxy and its composite 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 250 words) can be sent to the Editorial Office for assessment.

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
  • resin designs
  • 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

20 pages, 4880 KB  
Article
Melamine-Functionalized Graphene Oxide as a Multifunctional Modifier for High-Performance Epoxy Nanocomposites with Enhanced Mechanical Properties and Thermal Stability
by Anton Mostovoy, Andrey Shcherbakov, Amirbek Bekeshev, Sergey Brudnik, Andrey Yakovlev, Arai Zhumabekova, Elena Yakovleva, Sholpan Ussenkulova, Oleg Rastegaev and Marina Lopukhova
Polymers 2026, 18(5), 657; https://doi.org/10.3390/polym18050657 - 7 Mar 2026
Viewed by 596
Abstract
Developing polymer composites with improved mechanical and thermal properties requires strategies to overcome the problem of agglomeration and weak interfacial interactions of carbon nanofillers. This paper presents an effective strategy for the covalent functionalization of graphene oxide (GO) with melamine to create high-performance [...] Read more.
Developing polymer composites with improved mechanical and thermal properties requires strategies to overcome the problem of agglomeration and weak interfacial interactions of carbon nanofillers. This paper presents an effective strategy for the covalent functionalization of graphene oxide (GO) with melamine to create high-performance epoxy nanocomposites. The functionalization results in the formation of nitrogen-containing heterocyclic structures on the GO surface, as confirmed by FTIR and Raman spectroscopy. The addition of the obtained modified filler (mel-GO) into the epoxy matrix provides a synergistic effect: the melamine amino groups catalytically accelerate curing, reducing the gelation time from 146 to 48 min and increasing the maximum self-heating temperature from 94 to 122 °C, thus indicating enhanced interfacial interaction. This interaction results in a remarkable overall improvement in mechanical properties: tensile and flexural strengths increase by more than 20%, and elastic moduli by 31% and 58%, respectively, compared to the composite containing unmodified GO. At the same time, impact strength (from 14 to 23 kJ/m2) and hardness (up to 87 Shore D) increase. A key achievement is a dramatic increase in thermal and thermal-oxidative stability: the onset temperature of decomposition (T5%) increases by 27 °C, the half-decomposition temperature (T50%) by 45 °C, and the thermal stability index (THRI) increases from 119.3 to 128.9 °C. A more than twofold increase in coke residue yield (to 9.29%) and an increase in the Vicat softening point to 175 °C confirm the formation of an effective thermally stabilizing barrier layer due to the combined action of nitrogen-containing groups and dispersed graphene flakes. The proposed approach to functionalizing graphene oxide with melamine opens the way for the creation of next-generation epoxy composites with a record-breaking combination of strength, impact toughness, and thermal stability for applications in aerospace, electronics, and composite structures operating under extreme conditions. Full article
(This article belongs to the Special Issue Epoxy Polymers and Composites, Second Edition)
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