Results 151 to 160 of about 434 (180)

Thermal Analysis of Curaua Fiber Reinforced Epoxy Matrix Composites

2016
Thermoset polymers, like the epoxy, become harder with increasing temperature owing to molecular crosslink formation, which is a thermal benefit for composite matrix applications. Natural lignocellulosic fibers, however, have low thermal resistance and tend to degrade with increasing temperature.
Frederico M Margem, Sérgio Neves Monteiro   +1 more
exaly   +2 more sources

Analysis of curaua/glass hybrid interlayer laminates

Journal of Reinforced Plastics and Composites, 2014
This study compares the mechanical properties of curaua, glass and hybrid curaua/glass laminates evaluated experimentally with those obtained theoretically using commercial software for composites.
Maria Odila Hilário Cioffi, Ademir JOSÉ Zattera, Sandro Campos Amico   +2 more
exaly   +2 more sources

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

Cellulose nanofibers from curaua fibers

Cellulose, 2010
Curaua nanofibers extracted under different conditions were investigated. The raw fibers were mercerized with NaOH solutions; they were then submitted to acid hydrolysis using three different types of acids (H2SO4, a mixture of H2SO4/HCl and HCl). The fibers were analyzed by cellulose, lignin and hemicellulose contents; viscometry, X-ray diffraction ...
Ana Carolina Corrêa, Eliangela de Morais Teixeira, Luiz Antonio Pessan, Luiz Henrique Capparelli Mattoso   +3 more
openaire   +1 more source

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

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

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
openaire   +1 more source

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
openaire   +1 more source

Processing of a Green Fiber-Reinforced Composite of High-Performance Curaua Fiber in Polyester

JOM, 2018
Lignocellulosic fibers extracted from the curaua plant are among the strongest natural fibers used as polymer composite reinforcements for engineering applications. However, to date, such composites have been limited in terms of their mechanical strength and impact energy. The objective of the present work is to investigate the possibility of improving
Noan Tonini Simonassi, Fabio Oliveira Braga, Sergio Neves Monteiro   +2 more
openaire   +1 more source

Characterization of Raw and Treated Curaua Fibers to be Applied as Reinforcement in Composites

Materials Science Forum, 2012
Lignocellulosic fibers present several advantages over synthetic fibers, such as low cost and biodegradability. In this work the tensile mechanical behavior of as-received and surface treated curaua fibers was analyzed. Mercerization and three different enzyme surface treatments were used.
Ana.L.F.S. d'Almeida, João A. Melo Filho, José R.M. d'Almeida   +2 more
openaire   +1 more source