Thermally Resistant, Self-Extinguishing Thermoplastic Composites Enabled by Tannin-Based Carbonaceous Particulate.

Autor: Missio AL; Graduate Program in Materials Science and Engineering (PPGCEM), Technology Development Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil.; Graduate Program in Environmental Sciences (PPGCAmb), Engineering Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil., Delucis RA; Graduate Program in Materials Science and Engineering (PPGCEM), Technology Development Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil.; Graduate Program in Environmental Sciences (PPGCAmb), Engineering Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil., Otoni CG; Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil., de Cademartori PHG; Graduate Program in Forestry Engineering (PPGEF), Federal University of Paraná, Curitiba 80210-170, PR, Brazil., Coldebella R; Forest Products Laboratory (PPGEF), Center for Rural Sciences, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, RS, Brazil., Aramburu AB; Graduate Program in Materials Science and Engineering (PPGCEM), Technology Development Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil., Mattos BD; Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Espoo, Finland., Rodrigues MBB; Materials Engineering Course, Technological Development Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil., Lunkes N; Graduate Program in Materials Science and Engineering (PPGCEM), Technology Development Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil.; Architecture and Urbanism Undergraduate Course, Catholic University of Pelotas (UCPel), Pelotas 96015-560, RS, Brazil., Gatto DA; Graduate Program in Materials Science and Engineering (PPGCEM), Technology Development Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil.; Graduate Program in Environmental Sciences (PPGCAmb), Engineering Center, Federal University of Pelotas (UFPel), Pelotas 96010-610, RS, Brazil., Labidi J; Chemical and Environmental Engineering Department, University of the Basque Country, Escuela Politécnica de San Sebastián, Plaza Europa, 1, 20018 Donostia-San Sebastián, Guipuzcoa, Spain.
Jazyk: angličtina
Zdroj: Polymers [Polymers (Basel)] 2022 Sep 07; Vol. 14 (18). Date of Electronic Publication: 2022 Sep 07.
DOI: 10.3390/polym14183743
Abstrakt: Flame-resistant materials are key components in buildings and several other engineering applications. In this study, flame retardancy and thermal stability were conferred to a highly flammable technical thermoplastic-polypropylene (PP)-upon compositing with a carbonaceous tannin-based particulate (CTP). Herein, we report on a straightforward, facile, and green approach to prepare self-extinguishing thermoplastic composites by thermoblending highly recalcitrant particulate. The thermal stability and mechanical properties of the composites are tethered to the CTP content. We demonstrate that the addition of up to 65 wt% of CTP improved the viscoelastic properties and hydrophobicity of the PP, whereas having marginal effects on bulk water interactions. Most importantly, compositing with CTP remarkably improved the thermal stability of the composites, especially over 300 °C, which is an important threshold associated with the combustion of volatiles. PP-CTP composites demonstrated great capacity to limit and stop fire propagation. Therefore, we offer an innovative route towards thermally resistant and self-extinguishing PP composites, which is enabled by sustainable tannin-based flame retardants capable of further broadening the technical range of commodity polyolefins to high temperature scenarios.
Databáze: MEDLINE
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