Fire-proof silicate coatings with magnesium-containing fire retardant

Kaz’mina, O. V.; Лебедева, Е. В.; Mitina, N. A.; Kuzmenko, A.Yu.

doi:10.1007/s11998-017-0010-y

Cited by 26 publications

(27 citation statements)

References 30 publications

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“…To the best of our knowledge, there are no reports in the literature on fundamental studies of the adhesion mechanisms and potential performance improvements of such coatings for wood surfaces. Previous research in this field focused on the fire performances [9,10]. Kumar and co-authors [9] observed that vermiculite-sodium silicate composites coated on wood formed a solid foamy layer and released water molecules that improved the flame retardancy, when exposed to fire.…”

Section: Introductionmentioning

confidence: 99%

“…Kumar and co-authors [9] observed that vermiculite-sodium silicate composites coated on wood formed a solid foamy layer and released water molecules that improved the flame retardancy, when exposed to fire. Silicate paints containing hydromagnesite provided the first group of fire resistance for a wooden surface [10]. The authors presented a coating formulation with relatively good adhesion strength values on wood (5)(6), but the research data and optimization work leading to these results were not published (to the best of our knowledge) [10].…”

Section: Introductionmentioning

confidence: 99%

“…Silicate paints containing hydromagnesite provided the first group of fire resistance for a wooden surface [10]. The authors presented a coating formulation with relatively good adhesion strength values on wood (5)(6), but the research data and optimization work leading to these results were not published (to the best of our knowledge) [10]. Silicate-based geopolymer cements have also been tested for wood coatings, but they are slightly different systems [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Study of the Adhesion of Silicate-Based Coating Formulations on a Wood Substrate

et al. 2021

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Silicate coatings are environmentally friendly inorganic-based products that have long been used for mineral substrates and protection of steel against corrosion. The development and acceptance of these coatings in the wood sector require some adjustments in formulations or special preparation of the surface to be coated to obtain durable finishes. In this work, the adhesion of various silicate-based formulations to a beech wood substrate (Fagus sylvatica L.), was assessed with the main objective to study relevant parameters and potential improvements. Adhesion strength was determined by pull-off and cross-cut tests. Other coating properties such as scratch, impact, and water resistance were also determined. Surface roughness and interface were analyzed using confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM), and coating curing was studied by attenuated total reflection-infrared spectroscopy (ATR FTIR). The results showed that adhesion was highly dependent on formulation, penetration of the coatings into wood, and mechanical anchoring. Increasing the content of solid particles in the coating formulations or adding a polyol (glycerol, xylose), which probably acted as a coalescent, considerably decreased the adhesion strength, probably by blocking penetration into the wood by forming aggregates. Adhesion was improved by pre-mineralization of the surface, and substitution of a part of the potassium silicate binder with potassium methyl siliconate reduced the formation of cracks caused by dimensional instability of the wood.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study of the Adhesion of Silicate-Based Coating Formulations on a Wood Substrate

et al. 2021

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“…Conventional ame retardant methods generally refer to soaking wood with ame retardants or applying ame resistant coatings to wood surface (Huang et Polysilicate is an environmentally-benign lm-forming base, which is stiff, UV-radiation resistant, antimicrobial and odorless (Adesanya et al 2021; Kazmina et al 2018). It has a wide range of applications (Provis et al 2012), especially as an e ciently ame retardant inorganic coating for woods, which can form a solid and foamy protecting layer among wood burning.…”

Section: Introductionmentioning

confidence: 99%

A Facile Preparation of Environmentally-Benign and Flame-Retardant Coating on Wood by Comprising Polysilicate and Boric Acid

Wang

Meng

et al. 2021

Preprint

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For the sake of direct using on the built wooden buildings, a green flame resistance coating comprising sodium polysilicate (SPS) and boric acid was prepared. With weight gain of only 10 wt.%, the treated wood sample (SPS/B-wood) performed improved limiting oxygen index value of 40.3% and passed the V-0 rating in UL-94 test. Additionally, the total heat release, total smoke production and peak carbon monoxide production of SPS/B-wood sample were decreased by 24.5%, 36.0% and 59.4% respectively, compared with that of control wood sample. The residue of SPS/B-wood sample was increased to 54.0% from 18.4% of control wood sample at 800oC in the thermogravimetry analysis. The flame retardant mechanism was suggested that SPS and boric acid formed Si-O-B and Si-O-Si contained structures, isolating the heat and smoke transfer during wood combustion. Notably, NaOH, introduced by the SPS/B coating, catalyzed the lignin to form compact and high-quality char. To conclude, this low-cost and easily-operated coating has a promising future utilizing in the villages with dense wood buildings.

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“…To ensure the safety of human life in the case of fire, suitable fire protection of wood is necessary (Pajchrowski et al 2014;Jiang et al 2014;Arora et al 2012). A popular way to achieve this is impregnation (Şadiye Yasar et al 2017;Tsioptsias and Panayiotou 2011;Harada et al 2009) or application of fireproof coating, mainly intumescent (swelling when exposed to fire or heat) on wood (Li et al 2017;Harada et al 2007;Kazmina et al 2018;Puri and Khanna 2017).…”

Section: Introductionmentioning

confidence: 99%

Impact of melamine and its derivatives on the properties of poly(vinyl acetate)-based composite wood adhesive

et al. 2020

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A fire retardant composite adhesive for bonding wood and wood-based elements has been developed and characterized. To obtain the enhanced fire-proof properties of the wood adhesive dispersion based on the poly(vinyl acetate) (PVAc), ceramic fillers (17.5 wt% total)—alumina, silica, kaolin and glass fibers were applied. Moreover, fire retardants such as melamine, melamine phosphate and melamine polyphosphate (up to 7 wt%) were also used. Thermal analysis (TG-DSC), strength tests, rheology, pH and flammability measurements (PCFC) were performed. The best properties of the adhesive were achieved for ceramic additives supported by melamine phosphate. A slight improvement of shear strength, shift of the last decomposition step of PVAc (residue degradation) towards higher temperatures by about 50 °C, reduction in mass loss from 100 wt% to less than 70 wt% and about 30–40% improvement of flammability parameters such as heat release capacity, total heat release or peak heat release rate were found compared to the pure poly(vinyl acetate) adhesive.

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Fire-proof silicate coatings with magnesium-containing fire retardant

Cited by 26 publications

References 30 publications

Study of the Adhesion of Silicate-Based Coating Formulations on a Wood Substrate

Study of the Adhesion of Silicate-Based Coating Formulations on a Wood Substrate

A Facile Preparation of Environmentally-Benign and Flame-Retardant Coating on Wood by Comprising Polysilicate and Boric Acid

Impact of melamine and its derivatives on the properties of poly(vinyl acetate)-based composite wood adhesive

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