Wood Flour
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. COOPERATIVISM IN FOREST COMMUNITIES IN THE AMAZON: WHAT DO NON-MEMBERS SAY?
Resumo A Floresta Nacional do Tapajós é uma reserva na região oeste do estado do Pará e, em 2005, foi fundada a Cooperativa Mista da Floresta Nacional do Tapajós, com objetivo principal de aplicar o manejo florestal por meio de atividades comunitárias. Este trabalho teve como objetivo identificar e avaliar o ponto de vista de moradores não-membros sob
Ambient. soc.. Publicado em: 02/12/2019
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2. EFFECT OF NANOSILICA ON THERMAL, FLAMMABILITY, AND MORPHOLOGICAL PROPERTIES OF WF/RPS-BASED NANOCOMPOSITES
ABSTRACT The present study considered the effect of nanosilica levels on the thermal, flammability, and morphological properties of nanocomposites made of wood flour and recycled polystyrene. To do so, the recycled polystyrene (50%), wood flour (50%), nanosilica (four levels of nanosilica; 0, 2, 4 and 6 phc (parts per hundred compounds)), and maleic anhydrid
CERNE. Publicado em: 2018-03
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3. Effects of Multiple Extrusions on Structure-property Performance of Natural Fiber High-density Polyethylene Biocomposites
Detailed analysis of the effects of multiple extrusions on physical, mechanical, micro-structural as well as dynamic mechanical thermal properties of natural fiber high-density polyethylene (HDPE) composites is reported. Composite materials containing HDPE, wood flour, and Maleic Anhydride polyethylene (MAPE) were manufactured and subjected to a recycling pr
Mat. Res.. Publicado em: 01/02/2018
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4. Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites
ABSTRACT Wood flour composites main applications are represented by outdoor furnishing. Therefore, it is important to evaluate their behavior under natural ageing conditions. This work aims to investigate the natural ageing impact on the mechanical, physical, thermal e morphological properties of recycled polypropylene/ethylene vinyl acetate/wood flour compo
Matéria (Rio J.). Publicado em: 20/07/2017
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5. Biocomposites reinforced with natural fibers:thermal, morphological and mechanical characterization
ABSTRACT This study evaluates the thermal, morphological and mechanical behavior of polypropylene (PP) composite with different natural fibers. The fibers used were wood, sugarcane, bamboo, babassu, coconut and kenaf with and without coupling agent. The thermal, morphological and mechanical properties were evaluated, and a composite PP+GFPP (glass fiber) was
Matéria (Rio J.). Publicado em: 20/07/2017
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6. Biodegradation in Soil of the PHB/Wood Flour (80/20) and PHB/Sisal Fiber (80/20) Tubes
This paper presents the results of a study that aimed to monitor and evaluate biodegradation in soil, by the mass loss and the mechanical properties of plastic tubes. For this work, there were extruded and injected plastic tubes made of biodegradable polymer poly(hydroxybutyrate) - (PHB) and composite PHB/Wood Flour and PHB/Sisal Fiber, both with 20% fiber.
Mat. Res.. Publicado em: 11/05/2017
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7. Effect of Wood-derived Charcoal Content on Properties of Wood Plastic Composites
The effect of wood-derived charcoal flour on the water resistance and mechanical properties of wood plastic composite (WPC) panels was investigated. The hot press molded WPC panels were produced from polypropylene (37 wt%) with maleic anhydride-grafted polypropylene (MAPP, 3 wt%) and different mixtures of wood flour and charcoal flour. The amount of charcoal
Mat. Res.. Publicado em: 2015-06
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8. Comparative study between poly(ethylene-co-vinyl acetate) - EVA expanded composites filled with banana fiber and wood flour
The objective of this study is to develop expanded composites of poly(ethylene-co-vinyl acetate) (EVA) filled with two vegetable reinforcements (banana fiber or wood flour) as well as to evaluate the influence of the type, size and concentration of these reinforcements on the cell growth and their morphological, mechanical, thermal and physical properties. T
Mat. Res.. Publicado em: 2014-12
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9. Effect of compatibilization and reprocessing on the isothermal crystallization kinetics of polypropylene/wood flour composites
Numerous studies have focused on polymer mixtures aimed at the potential applications of these materials. This work analyzed the effect of polymer reprocessing and the type and concentration of compatibilizer on the isothermal crystallization kinetics of polypropylene/wood flour composites. The composites, which were polypropylene grafted with acrylic acid (
Polímeros. Publicado em: 28/05/2013
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10. Optimization of wood flour acetylation by factorial design and partial least squares regression
Acetylation was performed to reduce the polarity of wood and increase its compatibility with polymer matrices for the production of composites. These reactions were performed first as a function of acetic acid and anhydride concentration in a mixture catalyzed by sulfuric acid. A concentration of 50%/50% (v/v) of acetic acid and anhydride was found to produc
Quím. Nova. Publicado em: 2012
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11. Efeito da adição de carga e extensor nas propriedades do adesivo uréia-formaldeído e dos compensados de pinus e paricá / Effect of the addition of filler and extender on urea- formaldehyde adhesives and on pinus and paricá plywood properties
The objective of this study was to evaluate the effect of the addition of extender (wheat flour) and filler (babaçu flour) on urea-formaldehyde adhesive properties and on quality of plywood manufactured with Pinus elliottii e Schizolobium amazonicum (paricá) veneers. Ninety six three-layer plywood were produced, being forty eight produced with Pinus elliot
Publicado em: 2009
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12. Development of extruded profiles from high density polyethylene and wood flour composites / Desenvolvimento de perfis extrudados de compósitos de polietileno de alta densidade com farinha de madeira
Polymer profiles extrusion shows some peculiarity due to the flow behavior of these materials during the processing. On the other hand, the profile die design and tooling has been more a result of professionals expertise than an engineering project in essence. In the present work, it was aimed to combining concepts of computers aided engineering to rheologic
Publicado em: 2009