Results 21 to 30 of about 729 (154)

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

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

The influence of alkaline treatment on the mechanical performance of geopolymer composites reinforced with Brazilian malva and curaua fibers

open access: yesJournal of the American Ceramic Society, Volume 106, Issue 1, Page 339-353, January 2023., 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.
Kaushik Sankar   +2 more
wiley   +1 more source

Curauá fiber from plants produced by tissue culture: thermal, mechanical, and morphological characterizations

open access: yes, 2023
Fibers obtained from curauá, a species of small ornamental pineapples, are known for their good mechanical properties and benefits, such as ballistic resistance, in composites.
de Freitas, Ana E. M.   +21 more
core   +1 more source

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

High energy ballistic and fracture comparison between multilayered armor systems using non-woven curaua fabric composites and aramid laminates

open access: yesJournal of Materials Research and Technology, 2017
For personal protection against high kinetic energy projectiles, multilayered armor systems (MAS) are usually the best option. They combine synergistically the properties of different materials such as ceramics, composites and metals. In the present work,
Fábio de Oliveira Braga   +5 more
doaj   +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

Influência da espessura nas propriedades mecânicas de compósitos híbridos interlaminares de curauá/vidro/poliéster

open access: yesPolímeros, 2014
O interesse do uso de fibras vegetais (ex. juta, sisal e curauá) para aplicações mais nobres, como em reforço de materiais compósitos poliméricos, vem aumentando com o passar dos anos devido a aspectos diversos e, em especial, à legislação ambiental e à ...
Clarissa C. Angrizani   +3 more
doaj   +1 more source

Obtenção e caracterização de compósitos biodegradáveis de Poliácido Láctico (PLA) reforçados com fibras de curauá [PDF]

open access: yes, 2016
Dissertação (mestrado)—Universidade de Brasília, Faculdade UnB Gama, Faculdade de Tecnologia, Programa de Pós-Graduação em Integridade de Materiais da Engenharia, 2016.Com o advento da tecnologia moderna, ocorreu um aumento descontrolado no uso das ...
Oliveira, Janaíne Mônica de   +2 more
core   +1 more source

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