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Self-Healing, Recyclable, and Degradable Fire-Retardant Coatings for Green Buildings and...
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Self-Healing, Recyclable, and Degradable Fire-Retardant Coatings for Green Buildings and Engineering Constructions

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (31 January 2023) | Viewed by 3206

Special Issue Editor

Prof. Dr. Martin Decký

E-Mail Website
Guest Editor
Department of Highway and Environmental Engineering, Faculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 01026 Žilina, Slovakia
Interests: green buildings and transport constructions roads; construction engineering; civil engineering materials; building materials; civil engineering highway engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Contextual design is a user-centred, step-by-step design process for collecting field data to design products with technical components. Contextual design has been adapted for usability evaluation and for contextual application design of green buildings and civil engineering structures (tunnels, noise barriers, etc.).

Undoubtedly, "Self-Healing, Recyclable, and Degradable Fire-Retardant Coatings" are an essential part of individual structures’ components in sustainable green buildings and engineering constructions. They play an important role as flame retarders, which can act as catalysts whose concentration can be changed to achieve chemical equilibrium. Although they are fire-retardant coatings, they cannot change the intensity of the thermal flux, the oxygen deficiency, or excess oxygen, resulting in changes in burning manifestation and conditions. They may, however, modify or influence the fuel formation process and its ignitability. Application of fire-retardant gelatin-based biogel coatings has been proven to be highly efficient in improving the fire retardancy of structural materials during combustion. This Special Issue aims to promote the application of innovative types of surfacing, acoustic elements of noise barriers, and other components in the field of road engineering.

Prof. Dr. Martin Decký
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. 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 (1 paper)

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Research

10 pages, 14402 KiB  
Article
Preparation of a New Type of Expansion Flame Retardant and Application in Polystyrene
by Meizhu Qin, Xinping Hu and Jingyan Guo
Coatings 2023, 13(4), 733; https://doi.org/10.3390/coatings13040733 - 4 Apr 2023
Cited by 2 | Viewed by 2848
Abstract
Polystyrene (PS) is a widely used building insulation material with good mechanical strength and strong temperature adaptability. However, PS itself is highly flammable and displays poor flame retardancy. At present, building fires caused by organic external wall thermal insulation materials prepared from PS [...] Read more.
Polystyrene (PS) is a widely used building insulation material with good mechanical strength and strong temperature adaptability. However, PS itself is highly flammable and displays poor flame retardancy. At present, building fires caused by organic external wall thermal insulation materials prepared from PS represent a new fire hazard. In this study, the addition of an intumescent flame retardant (IFR) to reduce the flammability of PS was achieved. Using melamine (MEL), acrylonitrile-styrene-acrylate (ASA), and phytic acid (PA) as raw materials, a new type of flame retardant (MAP) was prepared by an electrostatic self-assembly method and was introduced to modify PS. Its effect on the flammability of PS composites was also investigated. The flammability of the PS composites was characterized using the limiting oxygen index (LOI) and vertical combustion. The effect of MAP on the morphology of the carbon layer formed from polymer decomposition was studied using scanning electron microscopy (SEM). By adding MAP to a PS/20%N-IFR flame-retardant composite, the flame-retardant property was significantly improved, the limiting oxygen index reached 37, and the vertical combustion reached a V-0 level. The fire performance index (FPI) of the PS/20%N-IFR composite reached 0.0054, which was significantly higher than that of the control PS (0.037) as determined by the cone calorimetry test. The SEM results showed that the introduction of MAP can increase the density of the carbon layer after combustion. The heat release rate for combustion was reduced. In addition, the mechanical properties of the PS/20%N-IFR composites were compared with those with no flame retardant. The tensile strength of the PS/20%N-IFR composite was 26.1 MPa and the elongation of the PS/20%N-IFR composite remained at 2.2%. The PS/20%N-IFR composite displayed better flame retardancy than the untreated material and good mechanical properties. The presence of MAP prevented the heat and oxygen transfer and interrupted the releasing of flammable products, thus protecting the PS from burning. This flame-retardant material may find broad applications in building insulation materials. Full article
(This article belongs to the Special Issue Self-Healing, Recyclable, and Degradable Fire-Retardant Coatings for Green Buildings and Engineering Constructions)
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