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| 3. |  | PROTZEK, G. R.; KOLOSKI, J.; MAGALHAES, W. L. E.; NETO, S. C.; NASCIMENTO, E. M.; AZEVEDO, E. Análise das propriedades físicas do compósito de serragem e poliuretano derivado de óleo de mamona. In: ENCONTRO BRASILEIRO EM MADEIRAS E EM ESTRUTURAS DE MADEIRA, 15., 2016, Curitiba. Anais. São Carlos: IBRAMEM, 2016. 11 p. Disponível online.| Biblioteca(s): Embrapa Florestas. |
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| 4. | | PROTZEK, G. R.; MAGALHAES, W. L. E.; BITTENCOURT, P. R. S.; CLARO NETO, S.; VILLANOVA, R. L.; AZEVEDO, E. C. The influence of fiber size on the behavior of the araucaria pine nut shell/PU composite. Polímeros: Ciência e Tecnologia, v. 29, n. 2, e2019025, 2019. 9 p.| Biblioteca(s): Embrapa Florestas. |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
02/07/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
PROTZEK, G. R.; MAGALHAES, W. L. E.; BITTENCOURT, P. R. S.; CLARO NETO, S.; VILLANOVA, R. L.; AZEVEDO, E. C. |
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Afiliação: |
Giuliana Ribeiro Protzek, Programa de Pós-graduação da UTFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Paulo Rodrigo Stival Bittencourt, UTFPR; Salvador Claro Neto, USP; Rodrigo Lupinacci Villanova, UTFPR; Elaine Cristina Azevedo, Programa de Pós-graduação da UTFPR. |
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Título: |
The influence of fiber size on the behavior of the araucaria pine nut shell/PU composite. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Polímeros: Ciência e Tecnologia, v. 29, n. 2, e2019025, 2019. 9 p. |
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DOI: |
10.1590/0104-1428.01218 |
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Idioma: |
Inglês |
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Conteúdo: |
The use of araucaria pine nut shell in polymer composites may increase the pine nut value and help protec araucaria (Araucaria angustifolia) itself, which is an endangered species. The aim of this work is to study the influence of the size of pine nut shell fiber on the mechanical properties of composites made of this shell and polyurethane derived from castor oil. Composites with different polyurethane contents were manufactured with dried untreated pine nut shell sieved through 30 and 50 mesh sieves (0.6 and 0.3 mm, respectively). Composites were shaped by mechanical mixing of the components followed by hot pressing. Properties such as density, water absorption, and flexural strength were measured. Specimens were also characterized by SEM, FTIR, and TGA. The flexural strength of PU/0.3mm pine nut shell composites with 30% PU (wt%) was 57.7 MPa, and their water absorption was 7.37% after 24 hours of immersion |
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Palavras-Chave: |
Araucaria pine nut shell; Casca de pinhão; Composite; Compósito; Poliuretano. |
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Thesaurus NAL: |
Castor oil; Mechanical properties; Polyurethanes. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199064/1/2019-Washington-P-The-influence.pdf
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Marc: |
LEADER 01792naa a2200289 a 4500
001 2110313
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/0104-1428.01218$2DOI
100 1 $aPROTZEK, G. R.
245 $aThe influence of fiber size on the behavior of the araucaria pine nut shell/PU composite.$h[electronic resource]
260 $c2019
520 $aThe use of araucaria pine nut shell in polymer composites may increase the pine nut value and help protec araucaria (Araucaria angustifolia) itself, which is an endangered species. The aim of this work is to study the influence of the size of pine nut shell fiber on the mechanical properties of composites made of this shell and polyurethane derived from castor oil. Composites with different polyurethane contents were manufactured with dried untreated pine nut shell sieved through 30 and 50 mesh sieves (0.6 and 0.3 mm, respectively). Composites were shaped by mechanical mixing of the components followed by hot pressing. Properties such as density, water absorption, and flexural strength were measured. Specimens were also characterized by SEM, FTIR, and TGA. The flexural strength of PU/0.3mm pine nut shell composites with 30% PU (wt%) was 57.7 MPa, and their water absorption was 7.37% after 24 hours of immersion
650 $aCastor oil
650 $aMechanical properties
650 $aPolyurethanes
653 $aAraucaria pine nut shell
653 $aCasca de pinhão
653 $aComposite
653 $aCompósito
653 $aPoliuretano
700 1 $aMAGALHAES, W. L. E.
700 1 $aBITTENCOURT, P. R. S.
700 1 $aCLARO NETO, S.
700 1 $aVILLANOVA, R. L.
700 1 $aAZEVEDO, E. C.
773 $tPolímeros: Ciência e Tecnologia$gv. 29, n. 2, e2019025, 2019. 9 p.
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Embrapa Florestas (CNPF) |
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