Vinyl intumescent coatings modified with platelet-type nanofillers

Tomczak, Michał; Łopiński, Jakub; Kowalczyk, Krzysztof; Schmidt, Beata; Rokicka, Joanna

doi:10.1016/j.porgcoat.2018.10.015

Cited by 13 publications

(21 citation statements)

References 30 publications

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“…Therefore, taking into consideration the INI calculation methodology, this Interestingly, the TIT values for the ZB0-based coatings were also significantly higher in relation to the reference sample, however, this borate does not contain the crystalline water. It should be pointed out that the higher thermal insulation efficiency of all the compositions with the anhydrous (or hydrated) ZBs could be affected by a crosslinking process of the polymeric coating binder by the borates [7]. Arguably, the PVAc-ZB interactions increase viscosity of the coatings (during the fire test) and affect formation processes of foamed layers.…”

Section: Furnace Test Resultsmentioning

confidence: 99%

“…The char exhibits barrier and thermal insulation properties, thus it hinders mass (and heat) exchange between the environment and the covered steel substrate. Hot air masses are also accumulated in pores of the char, hence their size and distribution have a crucial influence on the thermal protection effectiveness of the ICs [7]. In order to improve the fire protection, various types of fillers and additives are incorporated into the coating systems as well.…”

Section: Introductionmentioning

confidence: 99%

“…For example, titanium dioxide increases mechanical strength of the chars [8][9][10][11][12]. Additionally, researches pay the attention to systems with nanofillers [1, 7,13,14], waste polymers [15] and bio-fillers [3,[16][17][18]. In a few cases, boron compounds (mainly zinc borate such as 2ZnO•3B2O3•3.5H2O) have been used as flame retardants in ICs and as modifiers of the mechanical properties of charred layers [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of the B:Zn:H2O Molar Ratio on the Properties of Poly(Vinyl Acetate) and Zinc Borate-Based Intumescent Coating Materials Exposed to a Quasi-Real Cellulosic Fire

et al. 2020

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In order to investigate an influence of the B:Zn:H2O molar ratio on the fire protection efficiency of poly(vinyl acetate)-based thermoplastic intumescent coating materials (ICs), systems containing ammonium polyphosphate, melamine, pentaerythritol and different types of zinc borates (ZBs) were tested in a vertical position in quasi-real fire conditions. 3ZnO·2B2O3·6H2O (ZB6), 2ZnO·3B2O3·3.5H2O (ZB3.5) or 3ZnO·2B2O3 (ZB0) were added in amounts of 1–10 wt. parts/100 wt. parts of the other coating components mixture. Char formation processes and thermal insulation features were investigated using an open-flame furnace heated according to the cellulosic fire curve. Thermogravimetric features (DTG), chemical structures (FTIR) and mechanical strength of the ICs and the chars were analyzed as well. It was revealed that the type and dose of the ZBs significantly affect thermal insulation time (TIT) (up to 450 °C of a steel substrate) and sagging (SI) of the fire-heated coatings as well as the compressive strength of the created chars. The highest TIT value (+89%) was noted for the sample with 2.5 wt. parts of ZB3.5 while the lowest SI (−65%) was observed for the coatings containing 10 wt. parts of the hydrated borates (i.e., ZB3.5 or ZB6). The best mechanical strength was registered for the sample filled with the anhydrous modifier (3 wt. parts of ZB0). The presented results show that the ICs with the proper ZBs can be used for effective fire protection of vertically positioned steel elements.

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Section: Furnace Test Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of the B:Zn:H2O Molar Ratio on the Properties of Poly(Vinyl Acetate) and Zinc Borate-Based Intumescent Coating Materials Exposed to a Quasi-Real Cellulosic Fire

et al. 2020

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“…With addition of 4% mass Co-OMt, 4% mass Co-OMt/IFR/PP nanocomposites have surpassed a UL-94 V-0 rating, with an LOI value as high as 32.1%. e use of MMT as a synergic additive to flame retardants for designing polymers with better flame-retardant properties has already been extensively studied [45,[153][154][155][156][157][158][159][160][161][162][163][164][165][166]. e effect of APP/zinc borate (ZB) for making highly efficient flame retardants and ceramics of ethylene-vinyl acetate/mica powder/organic modified montmorillonite (EVA/MP/OMMT) composites has been shown [166].…”

Section: Black Phosphorus and Dehydrated Vanadylmentioning

confidence: 99%

Nanoreinforcements of Two-Dimensional Nanomaterials for Flame Retardant Polymeric Composites: An Overview

Hong

Chen

2019

Advances in Polymer Technology

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Polymer materials are ubiquitous in daily life. While polymers are often convenient and helpful, their properties often obscure the fire hazards they may pose. Therefore, it is of great significance in terms of safety to study the flame retardant properties of polymers while still maintaining their optimal performance. Current literature shows that although traditional flame retardants can satisfy the requirements of polymer flame retardancy, due to increases in product requirements in industry, including requirements for durability, mechanical properties, and environmental friendliness, it is imperative to develop a new generation of flame retardants. In recent years, the preparation of modified two-dimensional nanomaterials as flame retardants has attracted wide attention in the field. Due to their unique layered structures, two-dimensional nanomaterials can generally improve the mechanical properties of polymers via uniform dispersion, and they can form effective physical barriers in a matrix to improve the thermal stability of polymers. For polymer applications in specialized fields, different two-dimensional nanomaterials have potential conductivity, high thermal conductivity, catalytic activity, and antiultraviolet abilities, which can meet the flame retardant requirements of polymers and allow their use in specific applications. In this review, the current research status of two-dimensional nanomaterials as flame retardants is discussed, as well as a mechanism of how they can be applied for reducing the flammability of polymers.

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“…An increase in the overall fire-retardant capacity, which is associated with the increased content of mineral components in the coating and a change in the foam morphology, was shown. In paper [8], the simultaneous influence of two types of fillers with nanodimensional particles of the lamellar form -montmorillonite and graphene -was explored. It was shown that the latter significantly changes the chemical composition and the configuration of coal foam cells, which increases the thermal ability of the intumescent coating by 13 %, compared with the standard.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Influence of plasticizers on fire retarding properties of carbon foams of intumescent coatings

Myronyuk

Baklan

Barrat

et al. 2019

EEJET

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Vinyl intumescent coatings modified with platelet-type nanofillers

Cited by 13 publications

References 30 publications

Effect of the B:Zn:H2O Molar Ratio on the Properties of Poly(Vinyl Acetate) and Zinc Borate-Based Intumescent Coating Materials Exposed to a Quasi-Real Cellulosic Fire

Effect of the B:Zn:H2O Molar Ratio on the Properties of Poly(Vinyl Acetate) and Zinc Borate-Based Intumescent Coating Materials Exposed to a Quasi-Real Cellulosic Fire

Nanoreinforcements of Two-Dimensional Nanomaterials for Flame Retardant Polymeric Composites: An Overview

Influence of plasticizers on fire retarding properties of carbon foams of intumescent coatings

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