Intumescent Coatings Based on Tannins for Fire Protection

Silveira, Mauro Ricardo da Silva; Peres, Rafael; Moritz, Vicente F.; Ferreira, Carlos Arthur

doi:10.1590/1980-5373-mr-2018-0433

Cited by 25 publications

(17 citation statements)

References 44 publications

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“…Furthermore, inorganic fillers can also be added to these coating compositions for the improvement of flame retardant properties [23,24]. Very recently, it has been observed that the addition of inorganic fillers can sufficiently improve char morphology, thermal resistance, and fire retardation [25][26][27]. Nanofillers, on reaction with phosphate, can induce a synergistic effect in IFRCs.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Thermal Properties of Zirconia Nanoparticles and Chitosan-Based Intumescent Flame Retardant Coatings

et al. 2019

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Zirconia (ZrO2)-based flame retardant coatings were synthesized through the process of grinding, mixing, and curing. The flame retardant coatings reinforced with zirconia nanoparticles (ZrO2 NPs) were prepared at four different formulation levels marked by F0 (without adding ZrO2 NPs), F1 (1% w/w ZrO2 NPs), F2 (2% w/w ZrO2 NPs), and F3 (3% w/w ZrO2 NPs) in combination with epoxy resin, ammonium polyphosphate, boric acid, chitosan, and melamine. The prepared formulated coatings were characterized by flammability tests, combustion tests, and thermogravimetric analysis. Finally, char residues were examined with scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The peak heat release rate (PHRR) of the controlled sample filled with functionalized ZrO2 NPs was observed to decrease dramatically with increasing functionalized ZrO2 NPs loadings. There was an increase in the limit of oxygen index (LOI) value with the increase in the weight percentage of ZrO2 NPs. The UL-94V data clearly revealed a V-1 rating for the F0 sample; however, with the addition of ZrO2 NPs, the samples showed enhanced properties with a V-0 rating. Thermal gravimetric analysis (TGA) results revealed that addition of ZrO2 NPs Improved composite coating thermal stability at 800 °C by forming high residual char. The results obtained here reveal that the addition of ZrO2 NPs in the formulated coatings has shown the excellent impact as flame retardant coatings.

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Section: Introductionmentioning

confidence: 99%

Enhanced Thermal Properties of Zirconia Nanoparticles and Chitosan-Based Intumescent Flame Retardant Coatings

et al. 2019

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“…A composite material for the structure and cladding is employed at Arteck Milan in 2007, which contains raw material waste from printing adhesives and stickers produced by the Finnish company UPM. On the other hand, wastepaper sludge, a by-product of recycled paper products, can be incorporated into construction materials [101,102].…”

Section: Discussionmentioning

confidence: 99%

A Methodology to Qualitatively Select Upcycled Building Materials from Urban and Industrial Waste

et al. 2022

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The rising concern about climate change and other challenges faced by the planet led society to look for different design solutions and approaches towards a more balanced relationship between the built and natural environment. The circular economy is an effective alternative to the linear economic model inspired by natural metabolisms and the circular use of resources. This research explores how innovative strategies can be integrated for evaluating local urban and industrial wastes into sustainable building materials. A literature review is conducted focusing on circular design strategies, re-use, recycle, and waste transformation processes. Then, a methodology for the selection of upcycled and re-used building materials is developed based on Ashby’s method. A total of thirty-five types of partition walls, which include plastic, wood, paper, steel, aluminium, and agricultural wastes, are evaluated using a multi-criteria decision aid (M-MACBETH). Among these solutions, ten types of walls show high-performance thermal and sound isolation, fourteen types are effective for coating, and two exhibit structural reliability. Regardless of their functional limitations, the proposed solutions based on waste materials bear great potential within the construction industry.

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“…Relative to the no-coating control which reached (and maintained) 450 C within 10 min, the best composition had a max temperature of 147 C after 30 min. [16] This manuscript aims to build on the existing base of knowledge in two major areas. First, published literature on coatings for substrate protection offer limited comparison to that of fully complete control intumescent system such as one containing pentaerythritol, ammonium polyphosphate, and melamine (char former, acid source, and blowing agent, respectively).…”

Section: Introductionmentioning

confidence: 99%

“…Relative to the no‐coating control which reached (and maintained) 450°C within 10 min, the best composition had a max temperature of 147°C after 30 min. [ 16 ]…”

Section: Introductionmentioning

confidence: 99%

Tannic acid based super‐intumescent coatings for prolonged fire protection of cardboard and wood

et al. 2021

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Tannic acid (TA) has gained increased attention in recent years for its application in fire safety due to its natural abundance and char‐forming ability. In this paper, TA‐based composites were developed and evaluated against control composites containing pentaerythritol (PER), a common intumescent char‐forming agent. Individual component analysis was performed to provide a fundamental material understanding, followed by compounding in epoxy resin with other intumescent ingredients for intumescent testing (especially compared against PER control). In all TA systems, time to failure was elongated from seconds or minutes to over 15 min (up to 27 min). Quantitative analysis followed using cone calorimetry. TA composites displayed lower peak heat release values (211 vs. 108 kW/m2), lower total heat release values (37.2 vs. 24.4 MJ/m2), and lower fire growth rates (2.43 vs. 1.27 kW/m2s−1) relative to PER composites. X‐ray photoelectron spectroscopy analysis revealed that TA char is more carbonaceous, containing 54.71 at% C (relative to only 39.63 at% C in PER char). This work presents TA‐containing composites that offer superior fire protection as compared to previous reports using TA composites and hence offer significant advancement in fire protection related and packaging industries.

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Intumescent Coatings Based on Tannins for Fire Protection

Cited by 25 publications

References 44 publications

Enhanced Thermal Properties of Zirconia Nanoparticles and Chitosan-Based Intumescent Flame Retardant Coatings

Enhanced Thermal Properties of Zirconia Nanoparticles and Chitosan-Based Intumescent Flame Retardant Coatings

A Methodology to Qualitatively Select Upcycled Building Materials from Urban and Industrial Waste

Tannic acid based super‐intumescent coatings for prolonged fire protection of cardboard and wood

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