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      Efeito da adição de resíduo do endocarpo de tucumã (Astrocaryum Aculeatum) em Poliestireno de Alto Impacto (PSAI) Translated title: Effect of adding endocarp residue tucumã (Astrocaryum Aculeatum) in High Impact Polystyrene (HIPS)

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          Abstract

          RESUMO Este trabalho investigou o efeito da adição de resíduo do endocarpo de tucumã (Astrocaryum Aculeatum) em poliestireno de alto impacto. Foram obtidos corpos de prova por meio do processamento de injeção plástica, para a confecção dos corpos de prova, foram utilizados 2% e 4% em peso de resíduo (CPS2 e CPS4). Foram realizadas caracterizações térmicas (TG e DSC), mecânicas (ensaio de impacto e resistência em módulo de tração) e um estudo com espectrometria de infravermelho (FTIR). Portanto o estudo mecânico indicou uma menor resistência ao impacto e tração dos CPS2 e CPS4 comparados com o material puro (PSAI). O estudo térmico indicou que a estabilidade térmica é aprimorada com a incorporação do resíduo. Por meio da espectrometria de infravermelho (FTIR), foi possível verificar a perda de ligações de monossubstituição. De forma geral, foi possível observar uma boa adesão entre as partículas, notou-se o efeito compatibilizante da lignina residual, as interações resíduo-polímero provocaram alterações nas propriedades térmicas, mecânicas e espectroscópicas nos corpos de prova.

          Translated abstract

          ABSTRACT This work investigated the effect of adding residue from the tucumã (Astrocaryum Aculeatum) endocarp in high impact polystyrene. Specimens were obtained through plastic injection processing, to make the specimens, 2% and 4% by weight of waste (CPS2 and CPS4) were used. Thermal (TG and DSC), mechanical (impact test and tensile strength tests) and a study with infrared spectrometry (FTIR) were performed. Therefore, the mechanical study indicated a lower impact and traction resistance of CPS2 and CPS4 compared to pure material (HIPS). The thermal study indicated that thermal stability is improved with the incorporation of the residue. Through infrared spectrometry (FTIR), it was possible to verify the loss of monosubstitution bonds. In general, it was possible to observe a good adhesion between the particles, the compatibilizing effect of the residual lignin was noted, the residue-polymer interactions caused changes in the thermal, mechanical and spectroscopic properties in the specimens.

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          Dynamic mechanical analysis of randomly oriented intimately mixed short banana/sisal hybrid fibre reinforced polyester composites

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            A new biodegradable sisal fiber–starch packing composite with nest structure

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                Author and article information

                Journal
                rmat
                Matéria (Rio de Janeiro)
                Matéria (Rio J.)
                Rede Latino-Americana de Materiais (Rio de Janeiro, RJ, Brazil )
                1517-7076
                2020
                : 25
                : 3
                : e-12831
                Affiliations
                [02] Manaus AM orgnameUFAM orgdiv1Programa de Pós-Graduação em Ciência e Engenharia de Materiais Brasil
                [01] Manaus AM orgnameUFAM orgdiv1Faculdade de Tecnologia orgdiv2Departamento de Engenharia de Materiais Brasil
                Article
                S1517-70762020000300350 S1517-7076(20)02500300350
                10.1590/s1517-707620200003.1131
                62a75fac-0662-4cbb-8852-e89c42e6b6ed

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 27 June 2020
                : 14 December 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 28, Pages: 0
                Product

                SciELO Brazil

                Self URI: Texto completo somente em PDF (PT)
                Categories
                Artigos

                resíduo,thermal analysis,mechanical behavior,residue,thermoplastics,tucumã,análise térmica,comportamento mecânico,termoplásticos

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