Results 81 to 90 of about 1,254 (215)

Influence of gamma and ultraviolet radiation on the mechanical behavior of a hybrid polyester composite reinforced with curaua mat and aramid fabric

Journal of Materials Research and Technology, 2020
Functionalization of composite materials by ionizing radiation is considered an environmentally friendly technology to improve the compatibility of natural fibers with a polymer matrix. However, depending on the dose, it might also cause degradation.
Anderson Oliveira da Silva, Karollyne Gomes de Castro Monsores, Suzane de Sant’ Ana Oliveira, Ricardo Pondé Weber, Sergio Neves Monteiro, Hélio de Carvalho Vital   +5 more
doaj   +1 more source

The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá Fibers

Journal of Natural Fibers, 2022
The use of vegetable fibers in the modern engineering industry represents a worldwide need for sustainable low-cost materials with desirable mechanical characteristics, such as high strength, modulus of elasticity and strain capacity. In order to be used
Wena de N. Do R. Martel, I. P. Salgado, F. A. Silva   +2 more
doaj   +1 more source

Valorization of coffee silverskin by cascade extraction of valuable biomolecules: preparation of eco‐friendly composites as the ultimate step

Biofuels, Bioproducts and Biorefining, Volume 18, Issue 2, Page 524-542, March/April 2024.
Abstract This study presents a multidisciplinary approach for dealing with the environmental problems related to agro‐industrial coffee residues. The exploitation of these residues allows biomolecules to be obtained from renewable sources and enables the preparation of CO2‐neutral biocomposites, with the advantages of reducing fossil depletion ...
Stefano Bianchi, Micaela Vannini, Laura Sisti, Paola Marchese, Norma Mallegni, Óscar Rodríguez, Stéphan Kohnen, Job Tchoumtchoua, Patrizia Cinelli, Annamaria Celli   +9 more
wiley   +1 more source

Abaca fiber as an efficient reinforcement for high mechanical performance in metakaolin‐based geopolymers

International Journal of Applied Ceramic Technology, Volume 21, Issue 2, Page 1154-1169, March/April 2024.
Abstract This study introduces an innovative method for efficiently integrating abaca fibers into a potassium‐based geopolymer (KGP) material. Geopolymers often suffer from brittleness, and composite designs have been explored as a solution to enhance their strength and ductility.
Ana Carolina Constâncio Trindade, Sai Shruti Sood, Deyvid do Carmo Silva, Ali Ozer, Waltraud M. Kriven   +4 more
wiley   +1 more source

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.
Trindade, Wanderson Goncalves, Faulstich de Paiva, Jane Maria, Leão, Alcides Lopes, Frollini, Elisabete   +3 more
openaire   +2 more sources

Extração e caracterização de uma enzima proteolítica do curauá (Ananas Erectifolius)

Exacta, 2010
O curauá (Ananas erectifolius) é uma planta fibrosa encontrada no Norte e Centro-Oeste do Brasil, uma bromeliácea de características físico-químicas que lhe conferem grande potencial de utilização na indústria automobilística, como fonte de fibras.
Juliana Ferrari Ferreira, Dalva Sbruzzi, Kleber Vânio Gomes Barros, Isaac Stringueta Machado, Elias Basile Tambourgi   +4 more
doaj   +1 more source

Uso potencial de la fibra de curauá (Ananas acutifolius) para la fabricación de compuestos cementicios

Revista Ingeniería de Construcción, 2018
El objetivo de este estudio fue caracterizar y evaluar el rendimiento de la fibra amazónica de curauá (Ananas erectifolius) como reforzamiento en el proceso de producción de paneles de fibrocemento.
G. Katalyne Bilcati, A. Matoski, R. Trianoski, E. Lengowski   +3 more
doaj   +1 more source

Hydrochars from waste biomass of açaí and curauá as adsorbents for methylene blue using factorial experimental design

International Journal of Environmental Science and Technology
This study investigated the performance of four hydrochars derived from açaí seeds and curauá mucilage for methylene blue (MB) removal from aqueous solutions.
R. I. L. dos Santos, L. F. L. Souto, A. S. Mendes, N. A. de Moraes, N. N. A. Araújo, F. A. de Freitas   +5 more
semanticscholar   +1 more source

Características anatômicas foliares de brotações de curauá (Ananas erectifolius L.B.Sm) propagadas in vitro

Ornamental Horticulture, 2007
O objetivo deste trabalho foi contribuir para a descrição anatômica das folhas de curauá desenvolvidas de explantes cultivados in vitro, advindas ou não do estiolamento.
Flávia Dionísio Pereira, José Eduardo Brasil P. Pinto, Luciana Domiciano Silva Rosado, Daniel Melo de Castro, Helen Cristina de Arruda Rodrigues, Roseane Rodrigues de Souza, Renake Nogueira Teixeira   +6 more
doaj   +1 more source

Caracteres anatômicos de fibras foliares de brotações de curauá propagadas in vitro = Anatomical characters of curauá foliar fibers from plantlets in vitro propagation

Acta Scientiarum: Biological Sciences, 2007
O curauá [Ananas erectifolius (L.B.Sm) - Bromeliaceae] é uma espécie com grande potencial de utilização na indústria automobilística, devido à sua resistência, maciez e peso reduzido.
Osmar Alves Lameira, Luiz Alberto Beijo, Daniel Melo de Castro, Helen Cristina de Arruda Rodrigues, Luciana Domiciano Silva Rosado, Flávia Dionísio Pereira, José Eduardo Brasil Pereira Pinto   +6 more
doaj