Results 151 to 160 of about 1,208 (194)

Characterization of Curaua Fibers by Infrared Spectroscopy

Materials Science Forum, 2014
Natural fibers obtained from plants are being investigated as possible engineering materials with application in polymer composite reinforcement. For instance, the lignocellulosic fibers extracted from the leaves of the curaua plant (Ananas erectifolius) display a reinforcement potential owing to their relatively high strength.
Sergio Neves Monteiro, Frederico Muylaert Margem, Noan Tonini Simonassi, Rômulo Leite Loiola, Michel Picanço Oliveira   +4 more
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Thermal and mechanical characteristics of polyurethane/curaua fiber composites

Journal of Thermal Analysis and Calorimetry, 2008
Polyurethane composites reinforced with curaua fiber at 5, 10 and 20% mass/mass proportions were prepared by using the conventional melt-mixing method. The influence of curaua fibers on the thermal behavior and polymer cohesiveness in polyurethane matrix was evaluated by dynamic mechanical thermal analysis (DMTA) and by differential scanning ...
Cheila G. Mothé, Carla R. de Araujo, Shui H. Wang   +2 more
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Natural Curaua Fiber-Reinforced Composites in Multilayered Ballistic Armor

Metallurgical and Materials Transactions A, 2015
The performance of a novel multilayered armor in which the commonly used plies of aramid fabric layer were replaced by an equal thickness layer of distinct curaua fiber-reinforced composites with epoxy or polyester matrices was assessed. The investigated armor, in addition to its polymeric layer (aramid fabric or curaua composite), was also composed of
Sergio Neves Monteiro, Luis Henrique Leme Louro, Willian Trindade, Carlos Nelson Elias, Carlos Luiz Ferreira, Eduardo de Sousa Lima, Ricardo Pondé Weber, João Carlos Miguez Suarez, André Ben-Hur da Silva Figueiredo, Wagner Anacleto Pinheiro, Luis Carlos da Silva, Édio Pereira Lima   +11 more
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Recycled polypropylene reinforced with curaua fibers by extrusion

Journal of Applied Polymer Science, 2009
AbstractCuraua fibers were studied as reinforcing agents for postconsumer polypropylene. The composites were processed by extrusion. The composite properties were investigated by mechanical tests, thermal methods, melt flow index, surface morphology, and water uptake.
Marcia A. Silva Spinacé, Karen K. G. Fermoseli, Marco‐A De Paoli   +2 more
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Improvement of Mechanical Properties of Curaua Fiber Green Composites

Key Engineering Materials, 2007
Environment-friendly green composites were developed by combining a biodegradable resin with curaua fibers. The composites were fabricated by three different methods, i.e. direct, pre-forming and prepreg sheets methods. Mechanical properties of composites fabricated by all three methods were evaluated through tensile test.
Takanori Matsuo, Alexandre Gomes, Koichi Goda, Jun Ji Ohgi   +3 more
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The photodegradation and biodegradation of rEPS/curaua fiber composites

Polymer Composites, 2013
The development of composite materials comprised of postconsumer polymers and natural fibers is important for the possibility to obtain materials that are more compatible with the environment. Depending on the application of these materials and their final disposal, the relevant degradation processes must be considered in the studies of these materials.
Cleide Borsoi, Karina H. Berwig, Lisete C. Scienza, Ademir J. Zattera   +3 more
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Curaua Fibers/Epoxy Laminates with Improved Mechanical Properties: Effects of Fiber Treatment Conditions

Macromolecular Symposia, 2014
SummaryThe use of lignocellulosic fibers as reinforcement in polymer composites has increased worldwide recently. Vegetal fibers have low cost and they are commonly available in Brazil. The curaua fibers in particular are of great importance for the development of the Amazon region.
Paulo H. M. Cardoso, Fernando L. Bastian, Rossana M. S. M. Thiré   +2 more
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Statistical Experimental Design for Obtaining Nanocellulose from Curaua Fiber

Macromolecular Symposia, 2012
AbstractSummary: This study focuses on the methodology to obtain nanocellulose from vegetal fibers. An experimental planning was carried out for the treatment of curaua fibers and parameters were estimated, having the concentration of H2SO4, hydrolysis time, reaction temperature and time of applied sonication as independent variables for further ...
Juliana N. Lunz, Suellem B. Cordeiro, José Carlos F. Mota, Maria F. V. Marques   +3 more
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The use of curaua fibers as reinforcements in composites

2015
Nowadays, there is growing worldwide interest in the use of natural renewable materials to replace synthetic polymers or improve the properties of current materials. Natural fibers seem to offer a great opportunity in this respect, and among them curaua (. Ananas erectifolius L. B. Smith) fiber has unique properties, such as high strength, low density,
Souza, S. F., Ferreira, M., Sain, M., Ferreira, M. Z., Pupo, H. F., Cherian, B. M., Leão, A. L.   +6 more
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Composite Materials in Epoxy Resin Matrix Using Curaua Fibers

2020
Vegetable fibers have good mechanical properties, low density, no toxicity, are renewable and have low cost among other properties. The use of lignocellulosic fibers as reinforcement in polymeric composite materials in substitution of synthetic fibers is in the direction of sustainability.
Gilberto Garcia Del Pino, Abderrezak Bezazi, Haithem Boumediri, Antonio Claudio Kieling, Jose Luis Valin Rivera, Jamile Dehaini, Francisco Rolando Valenzuela Díaz   +6 more
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