Results 41 to 50 of about 1,254 (215)

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

Crescimento inicial de curauá e paricá submetidos à aplicação de extrato vegetal de curauá

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2019
Este estudo teve como objetivo testar o efeito da fertilização do solo com extrato vegetal de curauá (Ananas erectifolius) sobre o crescimento de indivíduos de curauá e paricá (Schizolobium parahyba var. amazonicum) plantados em consórcio. O trabalho foi
Iracema Maria Cordeiro   +3 more
doaj   +1 more source

Effect of reinforcement nanoparticles addition on mechanical properties of SBS/curauá fiber composites [PDF]

open access: yesMaterials Research, 2013
Composites of styrene-butadiene-styrene triblock copolymer (SBS) matrix with curauá fiber and/or a nanoparticulate mineral (montmorillonite clay - MMT) used as reinforcing agents were prepared by melt-mixing.
Patricia M Borba   +2 more
doaj   +2 more sources

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

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

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

USE OF CURAUA FIBERS AS REINFORCEMENT IN CEMENT COMPOSITES

open access: yesChemical Engineering Transactions, 2009
Not available.
Ana D Almeida   +2 more
openaire   +2 more sources

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

Soil cover management: initial development of pear trees hosui cultivar and its effects on soil and weeds

open access: yesRevista Brasileira de Fruticultura, 2019
Soil management is a practice that influences the development of fruit trees. In this sense, the objective of this study was to evaluate the effect of different soil cover/mulching types on weed control and on the early development of pear trees Hosui ...
Edina Costa Delonzek   +4 more
doaj   +1 more source

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