The Effect of AlI<sub>3</sub> Nanoadditive on the Thermal Behavior of PMMA Subjected to Thermoanalytical Py-GC-MS Technique
Thermal degradation of polymethylmethacrylate (PMMA) was studied by using inorganic salt of aluminum triiodide (AlI<sub>3</sub>). The composites of PMMA were prepared with AlI<sub>3</sub> by changing the concentration of the AlI<sub>3</sub> additive from 2% to 10%...
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| Autores principales: | , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/282d09c6111c48778e5450b6f426073e |
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| Sumario: | Thermal degradation of polymethylmethacrylate (PMMA) was studied by using inorganic salt of aluminum triiodide (AlI<sub>3</sub>). The composites of PMMA were prepared with AlI<sub>3</sub> by changing the concentration of the AlI<sub>3</sub> additive from 2% to 10% (<i>w</i>/<i>w</i>). The PMMA composites with AlI<sub>3</sub> were characterized by TGA, DTG, SEM, FTIR, HBT, and Py-GC-MS techniques. The FTIR peaks of PMMA composite at 1316, 786, and 693 cm<sup>−1</sup> justify the chemical association between PMMA and AlI<sub>3</sub>. TGA study shows that the stability of PMMA is enhanced by the addition of the AlI<sub>3</sub> additive. SEM analysis represented that there is a relationship between polymer and additive when they are mixed at the molecular level. The horizontal burning test (HBT) also confirmed that the AlI<sub>3</sub> additive produced the flame retarding properties in PMMA polymer. The burning rate of composite with 10% of AlI<sub>3</sub> additive decreases five times as much as compared to pure PMMA polymer. Py-GC-MS analysis deduced that PMMA composite produced less toxic and environment-friendly substances (CO<sub>2</sub>) by the influence of AlI<sub>3</sub> additive as compared to neat PMMA. |
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