2021
DOI: 10.1590/s1517-707620210002.1276
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Estudo da miscibilidade de blendas de poli (ácido lático)/ poli (butileno adipato-co-tereftalato) preparadas pelo método de evaporação de solvente

Abstract: RESUMO A produção de blendas de PLA/ PBAT tem por objetivo superar as desvantagens que cada polímero possui individualmente, como fragilidade, limitações de processabilidade e custo. Neste estudo, investigamos a miscibilidade e as propriedades de filmes biodegradáveis de PLA - Poli (ácido lático), PBAT- Poli (butileno adipato-co-tereftalato) e de suas blendas com proporções de 95/5, 70/30, 30/70 e 5/95 de PLA/PBAT, respectivamente, produzidos pelo método de evaporação de solvente. As blendas produzidas foram c… Show more

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“…Sample F3 revealed a thermal decomposition event at approximately 520°C that did not occur in the other samples (Figure 4b). This thermal event could be related to the heterogeneity of the constituents in F3 (PBS/PBAT, 70:30), similar to that reported by Cobo et al 42 in PLA/PBAT blends, or even to an obvious decomposition of aromatic copolyester (terephthalic acid), as reported by Chen et al 39 in advanced PBS and PBAT decomposition studies using DSC, TGA‐FTIR, and TGA‐GC‐MS.…”
Section: Resultssupporting
confidence: 81%
“…Sample F3 revealed a thermal decomposition event at approximately 520°C that did not occur in the other samples (Figure 4b). This thermal event could be related to the heterogeneity of the constituents in F3 (PBS/PBAT, 70:30), similar to that reported by Cobo et al 42 in PLA/PBAT blends, or even to an obvious decomposition of aromatic copolyester (terephthalic acid), as reported by Chen et al 39 in advanced PBS and PBAT decomposition studies using DSC, TGA‐FTIR, and TGA‐GC‐MS.…”
Section: Resultssupporting
confidence: 81%