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Flame Retardant Polymers: 2024 National Flame Retardant Academic Annual Conference
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Flame Retardant Polymers: 2024 National Flame Retardant Academic Annual Conference

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

Deadline for manuscript submissions: 31 July 2025 | Viewed by 2380

Special Issue Editors

Prof. Dr. Xiangmei Li

E-Mail Website
Guest Editor
National Engineering Research Center for Flame Retardant Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
Interests: design and synthesis of new flame retardants; halogen-free flame retardant polymer materials; high temperature and erosion resistant materials; flame retardant thermal protection materials.
Prof. Dr. Yinghong Chen

E-Mail Website
Guest Editor
The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
Interests: polymer micro-processing; halogen-free flame retardant polymer materials; 3D printing of polymer materials; polymer blending and composite modification
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Special Issue, titled “Flame Retardant Polymers: 2024 National Flame Retardant Academic Annual Conference”, aims to showcase cutting-edge advancements and innovative research in the field of flame-retardant polymers.

The 2024 National Flame Retardant Academic Annual Conference will attract a diverse audience of industry professionals and academic experts interested in exploring the latest technologies and developments in flame retardant polymers. Topics of interest for this Special Issue include, but are not limited to, the following:

  •     Novel flame retardants and synergists;
  •     Flame-retardant polymers;
  •     Developments in surface treatments and coatings;
  •     Flame-retardant composites;
  •     Flame retardants for film and fiber applications;
  •     Novel flame-retardant treatments for textiles;
  •     The characterization and testing of polymer burning behavior.

Prof. Dr. Xiangmei Li
Prof. Dr. Yinghong Chen
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

  • flame retardants
  • fire testing
  • thermal degradation
  • polymer composites
  • flame-resistant polymer materials

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Published Papers (2 papers)

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Research

16 pages, 5523 KiB  
Article
Surface Modification of Intumescent Flame Retardant and Its Application in Polypropylene with Excellent Fire Performance and Water Resistance
by Xuqiang Zheng, Mike Deng, Hao Jia, Xinyu Chen, Ruicheng Wang, Jun Sun, Hongfei Li, Xiaoyu Gu and Sheng Zhang
Polymers 2025, 17(3), 399; https://doi.org/10.3390/polym17030399 - 2 Feb 2025
Viewed by 886
Abstract
Polypropylene (PP) has a wide range of applications in daily life but it is highly flammable. Intumescent flame retardants (IFRs) are used to improve the flame-retardant performance of polypropylene. However, the poor compatibility between IFRs and PP poses significant challenges. In this study, [...] Read more.
Polypropylene (PP) has a wide range of applications in daily life but it is highly flammable. Intumescent flame retardants (IFRs) are used to improve the flame-retardant performance of polypropylene. However, the poor compatibility between IFRs and PP poses significant challenges. In this study, an IFR was reacted with γ-aminopropyl triethoxysilane (KH550) to introduce necessary reactive sites on the surface of the IFR. Subsequently, maleic anhydride-grafted SBS (SBS-g-MAH) was reacted with KH550 to further coat the IFR, resulting in a modified IFR named MA-IFR. The effects of MA-IFR on the flame retardancy, mechanical properties, and water resistance of PP composites were systematically investigated. The limiting oxygen index of the PP/MA-IFR composite reached up to 39.7%, with the vertical burning test (UL-94) achieving a V-0 rating. Moreover, compared to the control PP, the peak heat release rate and peak smoke release rate were reduced by 85.0% and 82.5%, respectively. In addition, the mechanical properties of the PP composites were significantly improved, with tensile strength and impact strength increasing by 29% and 18%, respectively, compared to those of the PP/IFR composite. Notably, the PP/MA-IFR composite maintained excellent flame retardancy, even after being immersed in water at 70 °C for 168 h. These results demonstrate that MA-IFR offers a promising solution for producing flame-retardant and water-resistant PP composites. Full article
(This article belongs to the Special Issue Flame Retardant Polymers: 2024 National Flame Retardant Academic Annual Conference)
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14 pages, 5112 KiB  
Article
Preparation of Montmorillonite–Melamine Cyanurate and Inhibition of the Emission of Phosphine from PA6/Aluminum Hypophosphate
by Lin Wang, Yuyang Li, Chenyang Yan, Xiangmei Li, Jiyu He and Rongjie Yang
Polymers 2024, 16(20), 2946; https://doi.org/10.3390/polym16202946 - 21 Oct 2024
Viewed by 1073
Abstract
In order to mitigate the release of toxic phosphine from aluminum hypophosphite in twin-screw processing, montmorillonite–melamine cyanurate was prepared by three methods: (1) mechanical intercalation, (2) water intercalation and (3) in situ intercalation. The sheet spacing of montmorillonite was increased from 1.140 nm [...] Read more.
In order to mitigate the release of toxic phosphine from aluminum hypophosphite in twin-screw processing, montmorillonite–melamine cyanurate was prepared by three methods: (1) mechanical intercalation, (2) water intercalation and (3) in situ intercalation. The sheet spacing of montmorillonite was increased from 1.140 nm to 1.141 nm, 1.208 nm and 1.217 nm for these three methods, respectively, and scanning electron microscope (SEM) and transmission electron microscopy (TEM) proved that melamine cyanurate was successfully inserted into the montmorillonite sheets. The montmorillonite–melamine cyanurate from in situ intercalation can best inhibit the release of PH3 from aluminum hypophosphite, and the peaks of phosphine, mean values of phosphine and integral of phosphine were reduced by 81.9%, 72.1% and 72.2%, respectively. The mode of action of montmorillonite–melamine cyanuric inhibition of the emission of phosphine from aluminum hypophosphite can be attributed to the physical absorption of montmorillonite and the chemical bonding of melamine cyanurate. In addition, in situ intercalation can slightly improve flame retardancy, attributed to incomplete exfoliation of montmorillonite sheets. Full article
(This article belongs to the Special Issue Flame Retardant Polymers: 2024 National Flame Retardant Academic Annual Conference)
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