Results 21 to 30 of about 303 (155)

Cement composites reinforced by short curaua fibers [PDF]

open access: yesMatéria (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   +3 more sources

Review on carbon dots: Synthesis and application in biology field

open access: yesBMEMat, 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

open access: yesPolymer 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

Mechanical and thermal properties of recycled polyethylene/surface treated hemp fiber bio‐composites

open access: yesPolymer Composites, Volume 44, Issue 8, Page 4976-4992, August 2023., 2023
This study presents the production of economic, mechanically, and thermally stable polymer composites via their sustainable and reusable components with an environmentally friendly approach. Abstract Hemp is a good option for polyethylene additives because of its high cellulose and fibrous content. This study aims to modify natural hemp fibers with the
Olcay Güney   +3 more
wiley   +1 more source

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

open access: yesJournal 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   +2 more
doaj   +1 more source

Recent trends in nanocomposite packaging films utilising waste generated biopolymers: Industrial symbiosis and its implication in sustainability

open access: yesIET Nanobiotechnology, Volume 17, Issue 3, Page 127-153, May 2023., 2023
Utilisation of residual biomass could act as green and sustainable approach to lessen the waste burden on Earth and fulfiling the demand for bio‐based goods. Using waste as a raw material through industrial symbiosis should be taken into account as one of the strategies to achieve more economic and environmental value through inter‐firm collaboration ...
Zeba Tabassum   +7 more
wiley   +1 more source

Ballistic behavior of a hybrid composite reinforced with curaua and aramid fabric subjected to ultraviolet radiation

open access: yesJournal of Materials Research and Technology, 2018
Mobile ballistic armors, particularly those intended for personal protection, are also designed with lowest possible weight. Composite materials are the best choice for this kind of application, especially laminated composites reinforced with high ...
Anderson Oliveira da Silva   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +5 more
doaj   +1 more source

Analysis of Failure Criteria in Laminas Reinforced with Unidirectional Curaua Fiber Fabric [PDF]

open access: yesMaterials Research, 2019
Natural fibers are increasingly used as composite reinforcement in different fields of engineering. Caraua fiber stands out for its good mechanical properties and adherence to resin; however, little is known about its behavior in the manufacture of a ...
Lucemaide Batista Miranda Ferreira   +2 more
doaj   +2 more sources

Investigation of the Potential Use of Curauá Fiber for Reinforcing Mortars

open access: yesFibers, 2020
Curauá is a bromeliad of Amazonian origin, present in some states in the northern region of Brazil and in other countries in South America. Its natural fibers have several technological advantages for application in composite materials.
Afonso R. G. de Azevedo   +7 more
doaj   +1 more source

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