The influence of ceramic additives on intumescence and thermal activity of epoxy coatings for steel

Mastalska‐Popławska, Joanna; Kadac, Kornelia; Izak, Piotr; Gierej, M.; Stempkowska, Agata; Góral, Zuzanna

doi:10.1002/app.49914

Cited by 9 publications

(2 citation statements)

References 48 publications

(228 reference statements)

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“…The results of the study of the impact of the graphite system with kaolin and titanium oxide on thermal properties, the swelling degree, and the integrity of the structures protected by films based on epoxy resins were presented in [15]. Analysis of thermal gravimetry showed that the resulting systems shift the reaction of the epoxy resin decomposition toward high temperatures.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Establishing patterns of heat transfer to timber through a protective structure

Tsapko

Rogovskii

Titova

et al. 2020

EEJET

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The conducted studies of the impact of thermal action of a high-temperature magnesium flame on construction materials for timber protection from atmospheric factors revealed a pattern of temperature transfer to timber. It was proved that depending on the thermophysical properties of the material, this can lead to its ignition or slowing down the thermal conductivity process. That is why there arises the need to study the conditions for thermal conductivity and establish the mechanism for inhibition of heat transfer to timber. In this regard, a mathematical model of the process of transferring heat flow on the surface of timber when protected by coatings was developed. According to the experimental data and obtained dependences, it was established that the density of heat flow through a steel plate increases to a value of more than 200 kW/m 2 , which is sufficient for ignition of timber. Instead, the density of heat flow through a vermiculite plate did not exceed 5.2 kW/m 2 , which is not enough for its ignition. It was established that the main regulator of the heat transfer process is the heat-insulating properties of a construction product, its resistance to high temperature, because certain construction products, such as an asbestos-cement product, are destroyed under the influence of magnesium flame. That is why a significant impact on the process of protection of natural combustible material when applying the protective coating is made in the direction of heat insulation of the timber surface. This makes it possible to argue about the relevance of the detected mechanism of the formation of heat-insulating properties when it comes to the protection of storage sites of explosive products and the practical attractiveness of the proposed technological solutions. Thus, the features of inhibiting the process of transferring heat to timber during the action of the magnesium flame include heat insulation of timber surfaces by thermally resistant material.Thus, the temperature of a magnesium flame was created on the vermiculate surface, and it did not exceed 100 °C on the surface of the timber

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Establishing patterns of heat transfer to timber through a protective structure

Tsapko

Rogovskii

Titova

et al. 2020

EEJET

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“…Thermoplastic polymers tend to lead the additional process of flame spreading or propagation, instead of generating a pyrolysis gas directly from the sample surface to the condensed phase. During combustion, char-type flame retardants combine the fuel with non-pyrolytic carbon (char) to prevent fuel release and provide thermal insulation to the base polymer by forming a protective char layer [50][51][52][53][54][55][56]. In other words, the flame retardant causes charring on the polymer surface through dehydration of the flame retardant to generate double bonds in the polymer [57][58][59][60][61][62].…”

Section: Polymer Combustionmentioning

confidence: 99%

Fire-Safe Polymer Composites: Flame-Retardant Effect of Nanofillers

Kim¹,

Lee

Yoon

2021

Polymers

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Currently, polymers are competing with metals and ceramics to realize various material characteristics, including mechanical and electrical properties. However, most polymers consist of organic matter, making them vulnerable to flames and high-temperature conditions. In addition, the combustion of polymers consisting of different types of organic matter results in various gaseous hazards. Therefore, to minimize the fire damage, there has been a significant demand for developing polymers that are fire resistant or flame retardant. From this viewpoint, it is crucial to design and synthesize thermally stable polymers that are less likely to decompose into combustible gaseous species under high-temperature conditions. Flame retardants can also be introduced to further reinforce the fire performance of polymers. In this review, the combustion process of organic matter, types of flame retardants, and common flammability testing methods are reviewed. Furthermore, the latest research trends in the use of versatile nanofillers to enhance the fire performance of polymeric materials are discussed with an emphasis on their underlying action, advantages, and disadvantages.

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Effect of Modified Halloysite/Expandable Graphite Addition on Thermal and Intumescent Properties of the Fire-Resistant Paints for Steel

Mastalska‐Popławska

2023

Arab J Sci Eng

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The article presents results of the research on the influence of halloysite and its modified versions in a configuration with expandable graphite on thermal stability, integrity and intumescence of the fire-resistant paints for steel based on the epoxy resin and ammonium polyphosphate/pentaerythritol/melamine (APP/PER/MEL) system. The preliminary scanning electron microscope (SEM) analysis showed that halloysite modified with sulfuric acid (M2) has the best surface expansion. Nanotubes increased their volume and nanoplates were more delaminated. Temperature tests of the fire-resistant paints and subsequent SEM analysis confirmed these results, as a homogeneous structure with 50-fold multiplication was obtained for the sample with modified halloysite M2/expandable graphite, while the sample with pure halloysite/expandable graphite multiplied only 15-fold. Thermogravimetry/ differential scanning calorimetry (TG/DSC) analysis showed that the modified halloysite can significantly change the course of thermograms, even at low addition (7 wt%), and the mass loss can be reduced by up to about 13 wt%. The obtained results showed that the modified halloysite can successfully cooperate with expandable graphite and can be introduced into the intumescent system without deteriorating the physicochemical properties of the coating.

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The influence of ceramic additives on intumescence and thermal activity of epoxy coatings for steel

Cited by 9 publications

References 48 publications

Establishing patterns of heat transfer to timber through a protective structure

Establishing patterns of heat transfer to timber through a protective structure

Fire-Safe Polymer Composites: Flame-Retardant Effect of Nanofillers

Effect of Modified Halloysite/Expandable Graphite Addition on Thermal and Intumescent Properties of the Fire-Resistant Paints for Steel

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