Advances in Flame Retardant Materials and Surfaces

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 18226

Special Issue Editors


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Guest Editor
ENSAIT Ecole Nationale Supérieure des Arts et Industries Textiles, Roubaix, France
Interests: fire-retardant textile; implementation of fire-retardant formulations (microencapsulation, spinning, coating); bio-sourced fire-retardant formulations
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
ENSAIT, ULR 2461 - GEMTEX - Génie et Matériaux Textiles, University Lille, F-59000 Lille, France
Interests: polymer and materials synthesis; microencapsulation and nanoencapsulation of active substances; surface functionalization for enhanced textile properties; thermal comfort; melt spinning; fibers; development of new synthetic methodologies and strategies for the design of new materials
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu, China
Interests: flame-retardant textile; bio-flame-retardant formulation for textiles; surface functionalization of textiles; textile reuse and recycling

Special Issue Information

Dear Colleagues,

We would like to invite you to contribute to a Special Issue of Coatings, which will be dedicated to the progress on the improvement of fire-retardant properties for materials through all possible modifications of their surfaces. Fire reaction concerns all combustible polymeric material (textile, wood, plastics, etc.) as well as noncombustible material, the properties of which can be affected by fire (i.e., the falling mechanical properties of steel beams under the heat stress of an intense fire). Several strategies exist in order to give fire-retardant properties to material. While synthetic materials may be modifiable in mass (chemical modification of the polymer or addition of fillers), natural material can be only modified on their surface. Otherwise, regardless of the action mode (gas or condensed phase) of the fire-retardant principle, while the surface treatment permits to optimize the efficiency of fire-retardant action and to reduce the impact on the materials’ properties, the permanence of the surface treatment may be more difficult to ensure (friction, aging, etc.).

The Special Issue will highlight new processes or formulations for materials (textile, composite, plastics, wood, etc.) used in various fields (building, transports, etc.). The understanding of fire action mechanisms in the case of surface treatment could also be exposed. In particular, the topics of interest include but are not limited to:

  • New technologies and processes;
  • New additives;
  • Ageing, durability, life-cycle analysis;
  • Action mechanisms;
  • Bio-sourced materials.

Assoc. Prof. Stéphane Giraud
Prof. Dr. Fabien Salaün
Prof. Dr. Jinping Guan
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. Coatings is an international peer-reviewed open access monthly 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 2600 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.

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Published Papers (4 papers)

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Research

22 pages, 8295 KiB  
Article
Combined Heat Transfer Mechanisms in the Porous Char Layer Formed from the Intumescent Coatings under Fire
by Lingyun Zhang, Yupeng Hu and Minghai Li
Coatings 2021, 11(2), 200; https://doi.org/10.3390/coatings11020200 - 9 Feb 2021
Cited by 2 | Viewed by 2193
Abstract
This study examines the combined heat transfer by thermal conduction, natural convection and surface radiation in the porous char layer that is formed from the intumescent coating under fire. The results show that some factors, such as the Rayleigh number, conductivity ratio, emissivity, [...] Read more.
This study examines the combined heat transfer by thermal conduction, natural convection and surface radiation in the porous char layer that is formed from the intumescent coating under fire. The results show that some factors, such as the Rayleigh number, conductivity ratio, emissivity, radiation–conduction number, void fraction and heating mode have a certain effect on the total heat transfer. In addition, the natural convection of the air in the cavity always inhibits surface radiation among the solid walls and thermal conduction, and the character of the total heat transfer is the competition result of the three heat transfer mechanisms. Full article
(This article belongs to the Special Issue Advances in Flame Retardant Materials and Surfaces)
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21 pages, 5333 KiB  
Article
Fire Resistance and Mechanical Properties of Intumescent Coating Using Novel BioAsh for Steel
by Jing Han Beh, Ming Chian Yew, Lip Huat Saw and Ming Kun Yew
Coatings 2020, 10(11), 1117; https://doi.org/10.3390/coatings10111117 - 20 Nov 2020
Cited by 22 | Viewed by 4510
Abstract
Recent developments of intumescent fire-protective coatings used in steel buildings are important to ensure the structural integrity and safe evacuation of occupants during fire accidents. Flame-retardant intumescent coating applied to structural steel could delay the spread of fire and heat propagation across spaces [...] Read more.
Recent developments of intumescent fire-protective coatings used in steel buildings are important to ensure the structural integrity and safe evacuation of occupants during fire accidents. Flame-retardant intumescent coating applied to structural steel could delay the spread of fire and heat propagation across spaces and structures in minimizing fire risks. This research focuses on formulating a green intumescent coating utilized the BioAsh, a by-product derived from natural rubberwood (hardwood) biomass combustion as the natural substitute of mineral fillers in the intumescent coating. Fire resistance, chemical, physical and mechanical properties of all samples were examined via Bunsen burner, thermogravimetric analysis (TGA), carbolite furnace, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared (FTIR), freeze–thaw cycle, static immersion and Instron pull-off adhesion test. Sample BioAsh intumescent coating (BAIC) 4-7 incorporated with 3.5 wt.% BioAsh exhibited the best performances in terms of fire resistance (112.5 °C for an hour under the Bunsen burner test), thermal stability (residual weight of 29.48 wt.% at 1000 °C in TGA test), adhesion strength (1.73 MPa under Instron pull-off adhesion test), water resistance (water absorption rate of 8.72%) and freeze–thaw durability (no crack, blister and color change) as compared to other samples. These results reveal that an appropriate amount of renewable BioAsh incorporated as natural mineral fillers into the intumescent coating could lead to better fire resistance and mechanical properties for the steel structures. Full article
(This article belongs to the Special Issue Advances in Flame Retardant Materials and Surfaces)
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12 pages, 3059 KiB  
Article
Surface Functionalization of Cotton and PC Fabrics Using SiO2 and ZnO Nanoparticles for Durable Flame Retardant Properties
by Sidra Saleemi, Tayab Naveed, Tabinda Riaz, Hafeezullah Memon, Javeed Ashraf Awan, M. Irfan Siyal, Fujun Xu and Jihyun Bae
Coatings 2020, 10(2), 124; https://doi.org/10.3390/coatings10020124 - 1 Feb 2020
Cited by 43 | Viewed by 5399
Abstract
In recent years, the use of functional textiles has attained attention due to their advantageous health and safety issues. Therefore, this study investigated the flame retardancy on cotton (COT) and polyester-cotton (PC) fabrics treated with different concentrations of silica and zinc nanoparticles through [...] Read more.
In recent years, the use of functional textiles has attained attention due to their advantageous health and safety issues. Therefore, this study investigated the flame retardancy on cotton (COT) and polyester-cotton (PC) fabrics treated with different concentrations of silica and zinc nanoparticles through a sol-gel finishing technique. FTIR, SEM, and TGA were conducted for the characterization of coated fabric samples. The FTIR and SEM of Pristine and Treated Cotton and PC fabrics illustrated that the SiO2 (silica dioxide) and ZnO (Zinc oxide) nanoparticles were homogeneously attached to the fiber surface, which contributed to the enhancement of the thermal stability. The starting thermal degradation improved from 320 to 350 °C and maximum degradation was observed from 400 to 428 °C for the COT-2 cotton substrate. However, the initial thermal degradation improved from 310 to 319 °C and the highest degradation from 500 to 524 °C for the PC substrate PC-2. The outcomes revealed that the silica has a greater influence on the thermal properties of COT and PC fabric samples. Additionally, the tensile strength and flexural rigidity of the treated samples were improved with an insignificant decrease in air permeability. Full article
(This article belongs to the Special Issue Advances in Flame Retardant Materials and Surfaces)
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18 pages, 5853 KiB  
Article
Preparation of Intumescent Fire Protective Coating for Fire Rated Timber Door
by Jessica Jong Kwang Yin, Ming Chian Yew, Ming Kun Yew and Lip Huat Saw
Coatings 2019, 9(11), 738; https://doi.org/10.3390/coatings9110738 - 6 Nov 2019
Cited by 19 | Viewed by 5409
Abstract
Intumescent flame-retardant coating (IFRC) provides a protective barrier to heat and mass transfer for the most efficient utilization of a wide variety of passive fire protection systems at the recent development. This article highlights the fire-resistance, physical, chemical, mechanical, and thermal properties of [...] Read more.
Intumescent flame-retardant coating (IFRC) provides a protective barrier to heat and mass transfer for the most efficient utilization of a wide variety of passive fire protection systems at the recent development. This article highlights the fire-resistance, physical, chemical, mechanical, and thermal properties of the IFRC using a Bunsen burner, furnace, Scanning Electron Microscope, freeze-thaw stability test, Instron Micro Tester, and thermogravimetric analysis (TGA) test. The five IFRC formulations were mixed with vermiculite and perlite for the fabrication of fire-resistant timber door prototypes in this research project. Additionally, the best fire-resistance performance of the fire-rated door prototype was selected and compared with a commercial prototype under the fire endurance test. An inventive fire-rated door prototype (P2), with a low density of 636.45 kg/m3, showed an outstanding fire-resistance rating performance, resulting in temperature reduction by up to 54.9 °C, as compared with that of the commercial prototype. Significantly, a novel fire-rated timber door prototype with the addition of formulating intumescent coating has proven to be efficient in preventing fires and maintaining its integrity by surviving a fire resistance period of 2 h. Full article
(This article belongs to the Special Issue Advances in Flame Retardant Materials and Surfaces)
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