Thermal stability of phosphorus-based epoxy/clay composites and its effect on flame-retardation properties of leather

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Kanemoto Stanley Olivier; Gouthaman Siddan; Venkatesh Madhu; Cheumani Yona Arnaud Maxime; Ndikontar Maurice Kor; Lakshmi Madurai Suguna

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Journal: IRANIAN POLYMER JOURNAL Year:2022 | Volume:31 | Issue:12 Page(s): 1583-1594

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Title

Thermal stability of phosphorus-based epoxy/clay composites and its effect on flame-retardation properties of leather

Author(s)

Keywords

Phosphorus epoxide

Reactive flame retardant

Leather

Coatings

Thermal stability

Abstract

The present study focuses on the synthesis of phosphorus-containing epoxy resins and their use as reactive flame retardants. Phosphorus-functionalized epoxy resins were synthesized using different aliphatic diols. First, phosphorus was grafted by reacting phosphoryl chloride with three different aliphatic diols: 1, 5-pentanediol, 1, 4-butanediol, or 1, 3-propanediol. The ensuing phosphorus-triol compounds were epoxidized with epichlorohydrin in an alkaline medium. Fourier transform infrared and nuclear magnetic resonance spectroscopy confirmed the presence of the epoxy-end group in the structure of synthesized epoxy resins. The phosphorus-containing epoxy resins were mixed with diglycidyl ether of bisphenol A at a fixed mass ratio of 9: 1, and the hybrid formulations were cured with triethylene tetramine as a hardener. Their thermal behaviour was assessed by differential scanning calorimetry and thermogravimetric analysis. Furthermore, the hybrid epoxy resins were blended with nanoclay and applied as a finishing on the grain surface of the leather. Thermal analyses of the coated leather showed an enhancement of thermal performance with an increase of statistical heat resistant index temperature from 100 to 121 °, C. The flame retardation properties were also assessed and it was found that after coating leather with epoxy nanocomposites, the limiting oxygen index of leather increased from 26. 7 , ±, , 0. 5 to 28. 6 , ±, , 0. 7%, while the ignition time of 6. 0 s developed to 8. 1 s. Consequently, all the leather samples coated with phosphorus-based epoxy nanocomposites exhibited a self-extinguishing behaviour due to the synergistic effect of phosphorus atoms and clay nanoparticles.

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APA: Copy

Kanemoto, Stanley Olivier, Gouthaman, Siddan, Venkatesh, Madhu, Cheumani Yona, Arnaud Maxime, Ndikontar, Maurice Kor, & Lakshmi, Madurai Suguna. (2022). Thermal stability of phosphorus-based epoxy/clay composites and its effect on flame-retardation properties of leather. IRANIAN POLYMER JOURNAL (ENGLISH), 31(12), 1583-1594. SID. https://sid.ir/paper/1040905/en

Vancouver: Copy

Kanemoto Stanley Olivier, Gouthaman Siddan, Venkatesh Madhu, Cheumani Yona Arnaud Maxime, Ndikontar Maurice Kor, Lakshmi Madurai Suguna. Thermal stability of phosphorus-based epoxy/clay composites and its effect on flame-retardation properties of leather. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2022;31(12):1583-1594. Available from: https://sid.ir/paper/1040905/en

IEEE: Copy

Stanley Olivier Kanemoto, Siddan Gouthaman, Madhu Venkatesh, Arnaud Maxime Cheumani Yona, Maurice Kor Ndikontar, and Madurai Suguna Lakshmi, “Thermal stability of phosphorus-based epoxy/clay composites and its effect on flame-retardation properties of leather,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 31, no. 12, pp. 1583–1594, 2022, [Online]. Available: https://sid.ir/paper/1040905/en

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