Polymers

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Dr. Yinjie Wang

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Guest Editor

School of Materials Science and Engineering, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian District, Beijing 100081, China
Interests: flame retardant materials; energetic materials; inorganic non-metallic materials

Prof. Dr. Jiping Liu

E-Mail Website
Guest Editor

School of Materials Science and Engineering, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian District, Beijing 100081, China
Interests: energetic materials; ammunition engineering; flame retardant materials and polymer materials

Special Issue Information

Dear Colleagues

We are pleased to invite submissions of original research to this Special Issue of Polymers entitled “Advanced Research on Flame Retardant Properties and Thermal Degradation of Polymer Composites”. This Special Issue aims to solve the flammability of existing polymer materials and adapt to the current theme of environmental protection. This Special Issue focuses on the preparation of new flame retardants, the mechanism of flame retardants, the thermal degradation process of polymers, the thermal stability analysis of composites, and new methods for preparing polymer materials. This Special Issue is open to researchers and authors who wish to submit research and review articles that explore these areas. We encourage the submission of manuscripts containing scientific findings in the broad field of flame retardancy and the thermal degradation of polymer composites.

Dr. Yinjie Wang
Prof. Dr. Jiping Liu
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
Composites
Thermal degradation
Polymers
Fire testing
Flame retardant mechanism
Thermal stability.

Published Papers (1 paper)

Research

15 pages, 7380 KiB

Open AccessArticle

Preparation of a Polymeric Phosphoramide Flame-Retardant and Its Effect on the Flame-Retardant Properties of Epoxy Resin

by Hao Wang, Yinjie Wang, Yan Su, Chuang Yu, Jia Han and Jiping Liu

Polymers 2024, 16(9), 1224; https://doi.org/10.3390/polym16091224 - 27 Apr 2024

Viewed by 371

Abstract

The flammability of epoxy resins and knowing how to achieve curing are particularly important factors during use. A novel approach for enhancing the fire resistance and reducing the smoke emission of epoxy resin during the curing process is suggested, which involves the utilization of a three-source integrated polymerization intumescent flame-retardant. In this study, the synthesis of poly 4,4-diaminodiphenylsulfone spirocyclic pentaerythritol bisphosphonate (PCS) is achieved through using solution polymerization, utilizing 4,4′-diaminodiphenylsulfone (DDS) and spirocyclic pentaerythritol bisphosphorate disphosphoryl chloride (SPDPC) as initial components. Following that, the EP underwent the inclusion of PCS to examine its resistance to heat, its ability to prevent flames, its effectiveness in reducing smoke and its curing effect. Compared to the unmodified epoxy resin, the addition of PCS can not only cure the epoxy resin, but also decompose before the epoxy resin and has a good carbonization effect. With the addition of 7 wt.% PCS, the LOI value can achieve 31.2% and successfully pass the UL-94 test with a V-0 rating. Moreover, the cone calorimeter experiment demonstrated a noteworthy decline of 59.7% in the maximum heat release rate (pHRR), 63.7% in overall heat release (THR), and 42.3% in total smoke generation (TSP). Based on the examination of TG-FTIR and SEM findings, there is ample evidence to suggest that PCS, functioning as a phosphorus-nitrogen intumescent flame-retardant that combines three origins, has the potential to exhibit a favorable flame-retardant impact in both its gas and condensed phases. Full article

(This article belongs to the Special Issue Advanced Research on Flame Retardant Property and Thermal Degradation of Polymer Composites)

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