2022
DOI: 10.37779/nt.v23i2.4313
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Aplicações de Enzimas em Poliuretano: uma revisão das Dissertações e Teses brasileiras

Abstract: Os polímeros conquistaram um espaço importantíssimo dentro da sociedade, em virtude de suas multifuncionalidades. Entretanto, suas estruturas químicas favorecem uma longa permanência indesejada no meio ambiente, como o caso do poliuretano, um polímero sintético na forma de espuma com vastas aplicações. Contudo após usado esse material não pode ser fundido novamente por se tratar de um plástico termorrígido. Assim, emerge--se a importância de pesquisas envolvendo meios para degradar esses materiais e a utilizaç… Show more

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“…PU foams are synthesized through a two-step process known as gelling and blowing reactions [2,5] . To facilitate this synthesis, two primary reagents are required: isocyanates and polyols [6,7] . However, these reagents are derived from non-renewable sources, leading to the emission of substantial amounts of carbon dioxide (CO2) into the atmosphere.…”
Section: Introductionmentioning
confidence: 99%
“…PU foams are synthesized through a two-step process known as gelling and blowing reactions [2,5] . To facilitate this synthesis, two primary reagents are required: isocyanates and polyols [6,7] . However, these reagents are derived from non-renewable sources, leading to the emission of substantial amounts of carbon dioxide (CO2) into the atmosphere.…”
Section: Introductionmentioning
confidence: 99%