Results 1 to 10 of about 352,893 (131)
Journal of Materials Research and Technology, 2018 Currently, one of the major concerns in our society is related to environmental issues, which has motivated researches and materials development from renewable and environmentally friendly resources. This study aims to compare, the composite strength developed with natural fibers, with those with glass fiber, which has environmental impacts from ...
Natalia de Oliveira Roque Maciel +8 more
exaly +5 more sources
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 ...
Castro, D.O. +2 more
exaly +4 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.
Trindade, Wanderson Goncalves +3 more
exaly +5 more sources
Mechanical Properties of Hybrid PVA–Natural Curaua Fiber Composites
Materials, 2022 This work presents the experimental study of hybrid cement-based composites with polyvinyl alcohol fiber (PVA) and alkali-treated, short, natural curaua fiber. The objective of this research is to develop composites reinforced with PVA and curaua fiber to present strain-hardening behavior with average crack width control.
Bartosz Zukowski +3 more
openaire +4 more sources
Cement composites reinforced by short curaua fibers [PDF]
Matéria (Rio de Janeiro), 2010 The development of an eco-friendly material that could reduce CO2 emission and that could aggregate value to a natural fiber, setting man at the countryside and raising the income of populations from poor regions is a challenge. Lignocellulosic fibers are cheap and are a readily available reinforcement, requiring only a low degree of industrialization ...
d'Almeida, A. +2 more
openaire +5 more sources
Green-reinforced Sedimentary Silt with Natural Curaua Fiber
Journal of Natural Fibers, 2022 Lime and cement as traditional binders need to be reduced in soil stabilization to avoid carbon dioxide emissions. Infrastructure development like paved structures, buildings, foundations, and dams involves exhaustive use of natural resources and serious concern for the environment.
Érico Rafael da Silva +2 more
openaire +2 more sources
Journal of the American Ceramic Society, 2023 Abstract Lignocellulosic fibers obtained from the curaua (Ananas erectifolius) and malva (Malva sylvestris) plants in Brazil can be used as suitable reinforcements for geopolymers (GPs) owing to their high strength, ready regional availability, and low cost.
Waltraud M Kriven +1 more
exaly +2 more sources
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.
Monteiro, Sergio Neves +4 more
openaire +3 more sources
Review on carbon dots: Synthesis and application in biology field
BMEMat, Volume 1, Issue 4, December 2023., 2023 Carbon dots (CDs) based have remarkable effects in bioimaging, biosensing, drug delivery and disease treatment. This review summarizes the recent advances in CDs based on preparation and with different structures and biological functions. Perspectives on challenges and future trends are also discussed.
Xueting Li +11 more
wiley +1 more source
Study of the dynamic fragility of polymer nanocomposites: Correlation with damping
Polymer Composites, Volume 44, Issue 9, Page 5619-5632, September 2023., 2023 The dynamic fragility and activation energy were calculated and analyzed on the basis of the dynamic mechanical data of a series of polymer nanocomposites. A general trend of a decreasing dynamic fragility with increasing Tg was found. No monotonic effect of the nanofiller loading on the fragility was detected. Abstract In this work, an extensive study
Ilias Charitos, Evagelia Kontou
wiley +1 more source