Results 181 to 190 of about 1,729 (201)

Modeling the mechanical behavior of epoxy Curaua reinforced composites

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2022
In recent decades, it has become essential to find and develop materials from non-petroleum sources that are more compatible with nature. The present work describes the mechanical properties of a composite with epoxy matrix reinforced with natural Curaua fibers. To improve the matrix-fiber interaction, the Curaua fibers were immersed in solutions with
Silvia D Vidal, Felipe do Carmo Amorim, João Fellipe Brandão de Souza, João ML Reis   +3 more
openaire   +1 more source

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

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

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
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

Short beam strength of curaua, sisal, glass and hybrid composites

Journal of Reinforced Plastics and Composites, 2012
In this study, the short beam strength characteristics of randomly oriented composites were comprehensively investigated. The following parameters were varied: fiber used (curaua or sisal), fiber washing or surface chemical treatment with sodium hydroxide/sodium borohydride, fiber length (from 5 to 60 mm), hybridization with glass fiber and the pre ...
Laís Vasconcelos da Silva, José Humberto Santos Almeida Júnior, Clarissa Coussirat Angrizani, Sandro Campos Amico   +3 more
openaire   +1 more source

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 ...
Felipe Hörlle de Oliveira, Ana Luiza Helfer, Sandro Campos Amico   +2 more
openaire   +1 more source

New textile fibre: Curaua

2016
Curaua fibres are leaf fibres extracted from an Amazon-forest plant (Ananas comosus var. erectifolius) closely related to the pineapple. There is evidence of successful use of curaua fibre in different areas, such as: reinforcing composite structures and products in the automobile industry, due the high mechanical resistance associated with low density
Pimenta, Paulo, Borges, Laura M., Oliveira,Fernando R., Silva, Simone Santos, Souto, A. Pedro   +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

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