Experimental study on the synergistic flame retardant effect of bio-based magnesium phytate and rice husk ash on epoxy resins

Xu, Yanying; Li, Jindu; Shen, Ruiqing; Wang, Zhi; Hu, Po; Wang, Qingsheng

doi:10.1007/s10973-020-10420-8

Cited by 20 publications

(8 citation statements)

References 55 publications

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“…The increment of up to 24.3% char residue helped enhance the combustion behavior of the composite. Another type of flame retardant that has been studied is magnesium phytate (Mg-Phyt), which was added to the epoxy–RH composite studied by Xu et al [ 88 ]. The addition of 5% Mg-Phyt to 5% RHA produced a compact silica-rich char layer containing Si-P and P-O-C structures that were thermally stable.…”

Section: Flame Retardance Of Rh Compositesmentioning

confidence: 99%

Recent Progress of Rice Husk Reinforced Polymer Composites: A Review

et al. 2021

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Recently, because of the rising population, carbon overloading, and environmental distress, human beings have needed to increase awareness and responsibility for the reduction of agricultural waste. The utilization of agricultural waste as a filler material in reinforced polymers is a fascinating discovery. This review paper attempts to study the physical, mechanical, and thermal behavior of rice husk (RH) as a fiber for reinforcing various synthetic polymers, based on recent studies, conducted between 2017 and 2021. It also highlights that advanced modification techniques could further improve the performance of composites by tailoring the physical and chemical substances of the fiber or matrix. The thermal properties, including flame-retardance and thermal behavior, are also discussed. The characteristics of the fiber–matrix interaction between RH and the polymer matrix provide essential insights into the future-ready applications of this agricultural waste fiber. The way forward in researching RH polymer composites is finally reviewed.

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Section: Flame Retardance Of Rh Compositesmentioning

confidence: 99%

Recent Progress of Rice Husk Reinforced Polymer Composites: A Review

et al. 2021

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“…In detail, the decomposition temperature of lignin-based epoxy sample is 31°C higher than that of the neat epoxy sample. Xu et al (2021) synthesized magnesium phytate (Mg-Phyt) and used it and rice husk ash as waste-based flameretardants for epoxy resins. In comparison to a pure epoxy sample, the peak heat release rate, total heat release, peak smoke production rate, and total smoke release of the epoxy sample containing 5 wt% Mg-Phyt and 5 wt% rice husk ash are reduced remarkably by 28.6, 10.6, 33.0, and 7.8%, respectively.…”

Section: Figure 10 | (A)mentioning

confidence: 99%

Solid Wastes Toward Flame Retardants for Polymeric Materials: A Review

Gao

Huo

Zhen-hu³

2021

Front. Mater.

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It has been significant yet challenging to recycle and reuse different kinds of wastes because of their mass production within society. Many efforts have been conducted to reuse wastes in different fields. Interestingly, some wastes have been employed to replace traditional petroleum-based flame retardants for polymeric materials. This review focuses on the recent development of waste flame retardants and their impacts on thermal stability, flame retardancy, and smoke suppression of polymers, followed by representative flame-retardant mechanisms. Finally, the key challenges associated with waste flame retardants are presented, and some future perspectives are proposed.

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“…The high addition of flame retardants had a lower flame retardancy efficiency and led to the destruction of their mechanical properties. Xu et al 21 synthesized a bio‐based flame retardant magnesium phytate (Mg‐Phyt) by a facile chelation reaction and applied it to EP. The results indicated that the addition of Mg‐Phyt could reduce the decomposition rate and combustion rate of epoxy resin.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a bio‐based in‐suit reinforcing flame retardant containing DOPO group and its application in EP

Zhang,

Wang,

Chen

et al. 2023

J of Applied Polymer Sci

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It was an enormous challenge to endow flame retardant for epoxy resin (EP) with high efficiency, high compatibility, low addition and environmental protection. Herein, a bio‐based flame retardant (PHAO) was synthesized using protocatechualdehyde, p‐aminobenzonitrile, and 9,10‐dihydro‐9‐oxa‐10‐phospha‐phenanthrene‐10‐oxide (DOPO) as precursors via a facile approach. PHAO was applied to EP to prepare EP/PHAO composites. Furthermore, PHAO demonstrated outstanding compatibility with the EP matrix, the interface free energy (IFE) value among PHAO and EP was 0.9 mJ/m2. For EP/3PHAO, the tensile strength enhanced from 55.4 MPa of pure EP to 67.4 MPa. EP/5PHAO, obtained by adding 5 wt% PHAO into EP, had a phosphorus content of only 0.34%, reaching the V‐0 level in UL‐94 test, and the limiting oxygen index was 32.5%. In comparison to pure EP, the peak heat release rate, total heat release and total smoke production of EP/5PHAO declined by 25.5%, 15.4%, and 15.3%, respectively. The flame retardancy of EP/5PHAO in gaseous and condensed phases was confirmed by investigating the residual carbon and pyrolysis behavior of EP/5PHAO. The synthesis of PHAO offered a solution for designing bio‐based flame retardant and advancing the flame retardancy and mechanical properties of EP.

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Experimental study on the synergistic flame retardant effect of bio-based magnesium phytate and rice husk ash on epoxy resins

Cited by 20 publications

References 55 publications

Recent Progress of Rice Husk Reinforced Polymer Composites: A Review

Recent Progress of Rice Husk Reinforced Polymer Composites: A Review

Solid Wastes Toward Flame Retardants for Polymeric Materials: A Review

Synthesis of a bio‐based in‐suit reinforcing flame retardant containing DOPO group and its application in EP

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