Results 171 to 180 of about 1,221 (197)

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
openaire   +2 more sources

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
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

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
openaire   +1 more source

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
openaire   +1 more source

Hybridization effect on the mechanical properties of curaua/glass fiber composites

Composites Part B: Engineering, 2013
The aim of this paper was to evaluate the effect of hybridizing glass and curaua fibers on the mechanical properties of their composites. These composites were produced by hot compression molding, with distinct overall fiber volume fraction, being either pure curaua fiber, pure glass fiber or hybrid.
Almeida Jr., José Humberto Santos, Amico, Sandro Campos, Botelho, Edson Cocchieri, Amado, Franco Dani Rico   +3 more
openaire   +2 more sources

Influence of Alkaline Hornification Treatment Cycles on the Mechanical Behavior in Curaua Fibers

Macromolecular Symposia, 2018
A well‐known treatment applied in vegetable fibers in both paper and cellulose industry is named hornification. This treatment consists in soaking and drying cycles aiming promoting a reducing in the water absorption capability of the fibers, which causes a stiffening in the cellulosic structure increasing the dimensional stability and consequently ...
Fernando Gomes de Souza, Romildo D Toledo Filho   +1 more
exaly   +2 more sources