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Polymers
Special Issues
Self-Healing Polymer Composites
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Self-Healing Polymer Composites

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

Deadline for manuscript submissions: closed (31 January 2020) | Viewed by 11137

Special Issue Editor

Dr. Min Wook Lee

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Guest Editor
Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Chudong-ro 92, Bondong-eup, Wanju-gun, Jeollabuk-do 55324, Republic of Korea
Interests: fracture and recovery of composite materials; core–shell nanofiber; carbon-fiber-reinforced polymer (CFRP)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nature-inspired self-healing strategies have been explored in biomimetic engineering designs with the aim of restoring structural damages or promoting corrosion protection through the systematic transport of healing agents, which can be cured and polymerized at the damaged sites. In recent years, successful efforts have been made to develop and test a variety of self-healing materials, which are the focus of the current Special Issue. Here, we shall discuss cutting-edge technologies in such materials and existing healing methods.

This Special Issue highlights the advances and fundamental aspects of synthesis, characterization, properties, and application of novel self-healing materials, as well as their composites. It is beneficial to have an in-depth and comprehensive explanation of the physicochemical and mechanical foundations associated with this field.

Dr. Min Wook Lee
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. 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

  • Self-healing
  • Self-repair
  • Healing agent
  • Healing strategy
  • Polymer–matrix composites (PMCs)

Published Papers (3 papers)

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11 pages, 3985 KiB  
Article
A Heterocyclic Polyurethane with Enhanced Self-Healing Efficiency and Outstanding Recovery of Mechanical Properties
by Jinsil Kim, Pyong Hwa Hong, Kiwon Choi, Gyeongmin Moon, Jungsoon Kang, Seoyun Lee, Sungkoo Lee, Hyun Wook Jung, Min Jae Ko and Sung Woo Hong
Polymers 2020, 12(4), 968; https://0-doi-org.brum.beds.ac.uk/10.3390/polym12040968 - 21 Apr 2020
Cited by 10 | Viewed by 3553
Abstract
A functional polyurethane based on the heterocyclic group was synthesized and its self-healing and mechanical properties were examined. To synthesize a heterocyclic polyurethane, a polyol and a heterocyclic compound with di-hydroxyl groups at both ends were blended and the blended solution was reacted [...] Read more.
A functional polyurethane based on the heterocyclic group was synthesized and its self-healing and mechanical properties were examined. To synthesize a heterocyclic polyurethane, a polyol and a heterocyclic compound with di-hydroxyl groups at both ends were blended and the blended solution was reacted with a crosslinker containing multiple isocyanate groups. The heterocyclic polyurethane demonstrates better self-healing efficiency than the conventional polyurethane with no heterocyclic groups. Furthermore, unlike the conventional self-healing materials, the heterocyclic polyurethane examined in this study shows an outstanding recovery of the mechanical properties after the self-healing process. These results are attributed to the unique supramolecular network resulting from the strong hydrogen bonding interaction between the urethane group and the heterocyclic group in the heterocyclic polyurethane matrix. Full article
(This article belongs to the Special Issue Self-Healing Polymer Composites)
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14 pages, 4245 KiB  
Article
Improvement of Mechanical and Self-Healing Properties for Polymethacrylate Derivatives Containing Maleimide Modified Graphene Oxide
by Won-Ji Lee and Sang-Ho Cha
Polymers 2020, 12(3), 603; https://0-doi-org.brum.beds.ac.uk/10.3390/polym12030603 - 06 Mar 2020
Cited by 14 | Viewed by 3672
Abstract
In this paper, a self-healable nanocomposite based on the Diels-Alder reaction is developed. A graphene-based nanofiller is introduced to improve the self-healing efficiency, as well as the mechanical properties of the nanocomposite. Graphene oxide (GO) is modified with maleimide functional groups, and the [...] Read more.
In this paper, a self-healable nanocomposite based on the Diels-Alder reaction is developed. A graphene-based nanofiller is introduced to improve the self-healing efficiency, as well as the mechanical properties of the nanocomposite. Graphene oxide (GO) is modified with maleimide functional groups, and the maleimide-modified GO (mGO) enhanced the compatibility of the polymer matrix and nanofiller. The tensile strength of the nanocomposite containing 0.030 wt% mGO is improved by 172%, compared to that of a polymer film incorporating both furan-functionalized polymer and bismaleimide without any nanofiller. Moreover, maleimide groups of the surface on mGO participate in the Diels-Alder reaction, which improves the self-healing efficiency. The mechanical and self-healing properties are significantly improved by using a small amount of mGO. Full article
(This article belongs to the Special Issue Self-Healing Polymer Composites)
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Other

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6 pages, 186 KiB  
Perspective
Prospects and Future Directions of Self-Healing Fiber-Reinforced Composite Materials
by Min Wook Lee
Polymers 2020, 12(2), 379; https://0-doi-org.brum.beds.ac.uk/10.3390/polym12020379 - 08 Feb 2020
Cited by 20 | Viewed by 3569
Abstract
In this paper, the anticipated challenges and future applications of self-healing composite materials are outlined. The progress made, from the classical literature to the most recent approaches, is summarized as follows: general history of current self-healing engineering materials, self-healing of structural composite materials, [...] Read more.
In this paper, the anticipated challenges and future applications of self-healing composite materials are outlined. The progress made, from the classical literature to the most recent approaches, is summarized as follows: general history of current self-healing engineering materials, self-healing of structural composite materials, and self-healing under extreme conditions. Finally, the next stage of research on self-healing composites is discussed. Full article
(This article belongs to the Special Issue Self-Healing Polymer Composites)
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