Tannin Phenolic Resin
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Biocomposites of lignin-, tannin- and glyoxal- based polymeric matrices reinforced with natural fibers / Biocompósitos a partir de matrizes poliméricas baseadas em lignina, tanino e glioxal reforçadas com fibras naturais
The present study aimed at developing biocomposites combining polymeric matrices and reinforcement agents, employing the highest possible proportion of materials obtained from natural sources. Phenolic resins are widely known and used due to their excellent properties, such as dimensional and thermal stability, flame resistance and chemical resistance. Howev
Publicado em: 2010
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2. Use of raw material obtained from a renewable source in tbhe preparation of phenolic type matrix composites / Utilização de matéria-prima obtida de fonte renovável na preparação de compósitos de matriz tipo fenólica
In the present work phenolic type matrices were prepered, which were reinforced with lignocellullosic fibers (sisal). The tannin-phenolic and phenol-furfural resins, amid other techniques, were characterized by nuclear magnetic resonance (NMR). Model compounds were synthesized specially for the 1H and 13C NMR analysis of phenol-furfural resins. The sisal fib
Publicado em: 2008
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3. Anatomia foliar de espécies de Flacourtiaceae (Sleumer 1980) / Foliar anatomy from species of Flacourtiaceae (Sleumer 1980)
There is no agreement regarding the taxonomic organization of the Flacourtiaceae and the theme is not emphasized in the literature, since there is a lack of taxonomic studies on this family. Several authors point out the close relationship between the families Flacourtiaceae and Salicaceae. Numerous families of plants have members with medicinal uses, standi
Publicado em: 2007