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Polymers
Special Issues
Polymer Materials Under Extreme Conditions
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Polymer Materials Under Extreme Conditions

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

Deadline for manuscript submissions: closed (20 June 2021) | Viewed by 8936

Special Issue Editors

Dr. Rodolphe Sonnier

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Guest Editor
Polymers, Composites, Hybrids (PCH), IMT Mines Ales, 6 avenue de Clavières, 30319 Alès, CEDEX, France
Interests: fire behavior; flame retardants; degradation; polymeric materials; fire safety engineering; polymers; materials chemistry; polymer blends; pyrolysis; ionizing radiation
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Laurent Ferry

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Guest Editor
IMT Mines Ales, Centre des Matériaux des Mines d’Alès (C2MA), 6 Avenue de Clavières, CEDEX, 30319 Alès, France
Interests: flame retardancy; fire behavior; thermal degradation of polymers
Special Issues, Collections and Topics in MDPI journals
Dr. Henri Vahabi

E-Mail Website
Guest Editor
Optical Materials, Photonics and Systems Laboratory (LMOPS), Université de Lorraine, F-57000 Metz, France
Interests: flame retardancy; thermal degradation; biobased flame retardants; biopolymers; aging of flame retardant and polymers; fiber-reinforced composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

Polymer materials are nowadays used in various applications, ranging from daily life products to high-tech devices. Although their environmental impact is a great concern, they will remain extensively used, thanks to their numerous properties and their high versatility. In some cases, they can be exposed to extreme conditions, whether these conditions are encountered during the service life or accidental (for example, fire). These conditions threaten the integrity of the material and its ability to maintain the functionality. They may include heat and fire, high mechanical stress, various radiations exposure, high pressure, immersion or contact with water or various liquids, etc. A better understanding of the material behavior under these conditions will help to design advanced high-resistant materials.

This Special Issue aims to gather high quality papers which focus on 1) the behavior of polymers under various extreme conditions, 2) the strategies maintaining/extending the functional properties of polymers under the aforementioned  extreme conditions, 3) the strategies restoring the material properties after exposure to extreme conditions.

Dr. Rodolphe Sonnier
Dr. Laurent Ferry
Dr. Henri Vahabi
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

  • polymer
  • ageing
  • fire
  • flame, heat
  • radiation
  • immersion
  • mechanical stress
  • weathering

Published Papers (3 papers)

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15 pages, 5686 KiB  
Article
Polymer Film Blend of Polyvinyl Alcohol, Trichloroethylene and Cresol Red for Gamma Radiation Dosimetry
by Aris Doyan, Susilawati Susilawati, Saiful Prayogi, Muhammad Roil Bilad, Muhamad Fatikul Arif and Noor Maizura Ismail
Polymers 2021, 13(11), 1866; https://doi.org/10.3390/polym13111866 - 04 Jun 2021
Cited by 18 | Viewed by 3904
Abstract
This study investigated the polymer film composite of polyvinyl alcohol (PVA), trichlorethylene (TCE) and cresol red (CR) dye irradiated with gamma (γ) rays for potential application as radiation dosimetry. The film was prepared via the solvent-casting method with varying concentrations of TCE. Film [...] Read more.
This study investigated the polymer film composite of polyvinyl alcohol (PVA), trichlorethylene (TCE) and cresol red (CR) dye irradiated with gamma (γ) rays for potential application as radiation dosimetry. The film was prepared via the solvent-casting method with varying concentrations of TCE. Film samples were exposed to radiation from a γ-rays radiation source of 60Cobalt isotope. Color changes before and after γ-rays irradiation were observed, and the optical properties of the polymer films were investigated by spectrophotometry. Results show that increasing the radiation dose physically changed the color of the polymer film, from purple (pH > 8.8) without radiation (0 kGy) to yellow (almost transparent) (2.8 < pH < 7.2) at the highest dose (12 kGy). The concentration of acid formed due to irradiation increased with the increase in irradiation doses and at higher TCE content. The critical doses of PVA-TCE composites decreased linearly with the increase of TCE composition, facilitating an easy calibration process. The dose response at 438 nm increased exponentially with increasing radiation dose, but showed an opposite trend at the 575 nm band. An increase in the TCA concentration indicated a decrease in the absorption edge and an increase in activation energy, but both decreased for all TCE concentrations at higher doses. The energy gap for the direct and the indirect transitions decreased with increasing TCE concentration and γ-rays radiation dose. The results of this study demonstrated the potential application of PVA-TCE-CR polymer film as γ-rays irradiation dosimetry in a useful dose range of 0–12 kGy. Full article
(This article belongs to the Special Issue Polymer Materials Under Extreme Conditions)
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17 pages, 7599 KiB  
Article
Influence of Density on Foam Collapse under Burning
by Abdoul Fayçal Baguian, Salifou Koucka Ouiminga, Claire Longuet, Anne-Sophie Caro-Bretelle, Stéphane Corn, Antoine Bere and Rodolphe Sonnier
Polymers 2021, 13(1), 13; https://doi.org/10.3390/polym13010013 - 22 Dec 2020
Cited by 6 | Viewed by 2858 | Correction
Abstract
The fire behaviour of flexible polyurethane foams was studied using a cone calorimeter, with a special emphasis on the collapse step. Only one peak of heat release rate, ranging from 200 to 450 kW/m2, is observed for thin foams, depending on [...] Read more.
The fire behaviour of flexible polyurethane foams was studied using a cone calorimeter, with a special emphasis on the collapse step. Only one peak of heat release rate, ranging from 200 to 450 kW/m2, is observed for thin foams, depending on the foam density and the heat flux. On the contrary, heat release rate (HRR) curves exhibit two peaks for 10 cm-thick foams, the second one corresponding to the pool fire formed after foam collapse. In all cases, the collapse occurs at a constant rate through the whole thickness. The rate of the recession of the front was calculated using digital and infrared cameras. Interestingly, its value is relatively constant whatever the heat flux (especially between 25 and 35 kW/m2), probably because of the very low heat conductivity preventing heat transfer through the thickness. The rate increases for the lightest foam but the fraction of burnt polymer during collapse is constant. Therefore, the pool fire is more intense for the densest foam. A simple macroscopic model taking into account only the heat transfer into the foam leads to much lower front recession rates, evidencing that the collapse is piloted by the cell walls’ rigidity. Full article
(This article belongs to the Special Issue Polymer Materials Under Extreme Conditions)
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1 pages, 190 KiB  
Correction
Correction: Sonnier, R., et al. Influence of Density on Foam Collapse under Burning. Polymers 2020, 13, 13
by Abdoul Fayçal Baguian, Salifou Koucka Ouiminga, Claire Longuet, Anne-Sophie Caro-Bretelle, Stéphane Corn, Antoine Bere and Rodolphe Sonnier
Polymers 2021, 13(4), 554; https://doi.org/10.3390/polym13040554 - 13 Feb 2021
Cited by 1 | Viewed by 1279
Abstract
The authors wish to make the following corrections to this paper [...] Full article
(This article belongs to the Special Issue Polymer Materials Under Extreme Conditions)
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