Results 161 to 170 of about 1,221 (197)

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.
Márcia Aparecida Silva Spinacé, Marco-Aurelio De Paoli   +1 more
exaly   +2 more sources

Ionized‐Air‐Treated Curaua Fibers as Reinforcement for Phenolic Matrices

Macromolecular Materials and Engineering, 2008
AbstractCuraua fibers were treated with ionized air to improve the fiber/phenolic matrix adhesion. The treatment with ionized air did not change the thermal stability of the fibers. The impact strength increased with increase in the fiber treatment time.
Alcides Lopes Leão, Elisabete Frollini
exaly   +3 more sources

Characterization of Curaua Fiber

Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, 2000
Abstract This paper describes the chemical, thermal and thermomechanical characterization of curaua fiber. The research of the thermal and thermomechanical properties of natural fibers is of major interest, considering their increasing utilization in several applications, and the large temperature range to which the fibers are submitted.
José Cláudio Caraschi, Alcides Lopes Leãto   +1 more
openaire   +1 more source

Performance of curaua fibers in pullout tests

Journal of Materials Science, 2007
Natural lignocellulosic fibers are successfully replacing synthetic fibers as the reinforcement phase of composite materials in many engineering applications, including automobile parts. In addition to well-known conventional lignocellulosic fibers, others with promising properties, like that obtained from the leaves of the curaua plant (Ananas ...
Sergio Neves Monteiro, Regina Coeli M. P. Aquino, Felipe Perisse D. Lopes   +2 more
openaire   +1 more source

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 Henrique Machado Cardoso
exaly   +2 more sources

Mechanical Behavior of Unidirectional Curaua Fiber and Glass Fiber Composites

Macromolecular Symposia, 2012
AbstractSummary: This work intends to promote the use of natural fibers by comparing the behavior of isophthalic polyester matrix composites reinforced with unidirectional curaua fibers with that of unidirectional glass fiber composites. The composites were produced varying the reinforcement angle (0°, 15°, 30°, 45°, 60°, 75° and 90°) with the aim of ...
Sandro C. Amico
exaly   +2 more sources

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
openaire   +1 more source

Materials prepared from biopolyethylene and curaua fibers: Composites from biomass

Polymer Testing, 2012
AbstractComposites of high-density biopolyethylene (HDBPE) obtained from ethylene derived from sugarcane ethanol and curaua fibers were formed by first mixing in an internal mixer followed by thermopressing. Additionally, hydroxyl-terminated polybutadiene (LHPB), which is usually used as an impact modifier, was mainly used in this study as a ...
Elisabete Frollini
exaly   +2 more sources

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
openaire   +1 more source

Processing and properties of continuous and aligned curaua fibers incorporated polyester composites

Journal of Materials Research and Technology, 2013
AbstractThis paper presents systematic studies carried out on the processing and characterization of continuous and aligned curaua fibers-polyester composites. Laminates of these composites with (0 to 40 vol. %) curaua fibers were press-molded at room temperature, cured for 24hours and tested for strength properties.
Sergio Neves Monteiro, Felipe Perissé Duarte Lopes   +1 more
exaly   +2 more sources