Effects of talc on fire retarding, thermal degradation and water resistance of intumescent coating

Dzulkafli, H. Hazwani; Ahmad, Faiz; Ullah, Sami; Hussain, Patthi; Mamat, Othman; Megat-Yusoff, Puteri Sri Melor

doi:10.1016/j.clay.2017.06.013

Cited by 59 publications

(15 citation statements)

References 45 publications

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“…The SMP residue has individual flakes, possibly from the talc. [ 71 ] SMP‐HMDSO has more layered, coagulated particles. When comparing the elementary composition of the two samples no significant difference is observed.…”

Section: Resultsmentioning

confidence: 99%

Effect of a thin organosilicon layer prepared by atmospheric pressure plasma on wood flame retardancy

Soula

Profili

Caceres‐Ferreira

et al. 2022

Plasma Processes & Polymers

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In a high-rise building, due to the risk of flame spread and strict regulations associated, wood use is limited for interior finishes. This study aimed to evaluate the effect of a thin organosilicon layer (∼500 nm) prepared by atmospheric pressure plasma on the fire behavior of a wood substrate. The coating was deposited from hexamethyldisiloxane in argon on both untreated wood and wood with a preparatory coating of primer. The primer reduces the

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Section: Resultsmentioning

confidence: 99%

Effect of a thin organosilicon layer prepared by atmospheric pressure plasma on wood flame retardancy

Soula

Profili

Caceres‐Ferreira

et al. 2022

Plasma Processes & Polymers

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“…Talc is a metamorphic phyllosilicate 8 referenced as a hydrated magnesium silicate composed of a magnesium‐hydroxyl octahedral (brucite) sheet sandwiched among two sheets of tetrahedral silicon–oxygen with the chemical formula Mg 3 Si 4 O 10 (OH) 2 9,10 . Brazil, China, and the United States are the world's largest producers, and it is estimated that about 22% of the talc sold in the United States is used in ceramics 11 …”

Section: Introductionmentioning

confidence: 99%

Application of factorial model for an optimization of partial replacement of feldspar by talc on the sintering process

Silva

Porta

Silva

et al. 2023

Int J Applied Ceramic Tech

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This research used a factorial model containing two levels and three variables to evaluate the partial substitution of sodium feldspar (albite) by a talc ore found in abundance in the region of Itaiacoca-Brazil. The model can also be used to verify the influence of initial talc particle size, proportion, and sintering threshold temperature on the following physical properties, such as linear shrinkage, water absorption, bulk density, total porosity, and firing color. In this study, the mechanical strength of the compositions was evaluated by the flexural strength test. The factorial model indicated the sintering temperature as the variable that most affects the samples' densification and the proportion of talc as the variable that changes the firing color. The experiment that used a higher sintering temperature combined with a coarser talc granulometry presented the highest mechanical strength. When more refined granulometry was used, there was the beginning of an overfire process. Water absorption values in the range of .04% and modulus of rupture of 49 MPa were obtained, confirming the talc's effectiveness as a secondary flux agent suitable for the formulation of ceramic bodies.

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“…While some alternatives are effective in suppressing flame, concerns are arising on the stability and cost of the coating ingredients. Intumescent coating is designed that its constituents expand when exposed to heat 6–8 . The literature suggests that these materials can be helpful to improve the fire resistance of polymeric materials 9–12 …”

Section: Introductionmentioning

confidence: 99%

Effects of expandable graphite on char morphology and pyrolysis of epoxy based intumescent fire‐retardant coating

Ullah

Ahmad

Al‐Sehemi

et al. 2021

J of Applied Polymer Sci

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The current study was designed to investigate the effects of expandable graphite (EG) on fire protection properties of intumescent fire-retardant coating for steel structures. Several formulations of intumescent coating were prepared and tested according to ISO 834 for char expansion. The chars were found without cracks and bonded with the steel substrate. The results showed that the coating slowly degraded during the test and char remained in contact with vertically tested coated substrate. The coated substrates were also tested for weather resistance using humid and ultraviolet environment. The char was characterized by using FESEM, XRD, FTIR, TGA, and XPS analysis. FESEM examined char morphology of the coatings after furnace fire test. XRD and FTIR showed the presence of graphite, borophosphate; boron oxide and sassolite in the char. TGA and DTGA results disclosed that EG improved the residual mass of coating. XPS analysis showed the percentages of carbon and oxygen are 48.50 and 43.45 in char of formulation with 12.8% EG. The results of weathering test coatings showed decreased in char expansion because of a humidity and UV light. The formulation with 9.8% EG showed the maximum char expansion and high residual mass among the formulations investigated in this study. The weathering tested coated samples showed their capability of fire protection.

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Effects of talc on fire retarding, thermal degradation and water resistance of intumescent coating

Cited by 59 publications

References 45 publications

Effect of a thin organosilicon layer prepared by atmospheric pressure plasma on wood flame retardancy

Effect of a thin organosilicon layer prepared by atmospheric pressure plasma on wood flame retardancy

Application of factorial model for an optimization of partial replacement of feldspar by talc on the sintering process

Effects of expandable graphite on char morphology and pyrolysis of epoxy based intumescent fire‐retardant coating

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