Search results for "Fiber matrix"

showing 3 items of 3 documents

Transport of dipeptides and phosphono dipeptides through an immobilized liquid membrane. Stereoselectivity of the process

1993

Abstract Dipeptide and phosphono dipeptide hydrochlorides permeated well through a 1-decanol membrane supported in a porous polyethylene hollow fiber matrix. This transfer is easily accomplished either by passive or by carrier-facilitated (with Kryptofixes 222 or 5 present in the membrane phase) transport. The transport is stereoselective with l-l dipeptides being transported faster than their l-d isomers.

DipeptideFacilitated diffusionstereoselective transportFiltration and SeparationPolyethyleneBiochemistryCombinatorial chemistrysupported liquid membraneschemistry.chemical_compoundMembraneliquid membraneschemistryMass transferPhase (matter)Fiber matrixOrganic chemistryGeneral Materials ScienceStereoselectivityfacilitated transportPhysical and Theoretical ChemistryJournal of Membrane Science
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Toward high performance renewable agave reinforced biocomposites: Optimization of fiber performance and fiber-matrix adhesion analysis

2017

Abstract The increasing sensitivity toward the environmental pollution and the recent laws on the environmental protection, have led to an increasing attention to the so called biocomposites, i.e. to ecofriendly or renewable composite materials, obtained from biopolymers reinforced by natural fibers. Although the contribution of various works reported in literature, focused on biocomposites reinforced by agave fibers, such materials are still exclusively used in the automotive industry for non-structural applications, and the implementation of high performance biocomposites for semi-structural and structural applications, is an expected, but not yet reached objective. Therefore, the present…

Materials scienceThermoplasticGreen epoxyThermosetting polymerEnvironmental pollutionCeramics and Composite02 engineering and technology010402 general chemistry01 natural sciencesIndustrial and Manufacturing EngineeringSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineFiber matrix adhesionMechanics of MaterialFiberComposite materialAgave fibers; Biocomposites; Green epoxy; Micromechanics; PLA; Ceramics and Composites; Mechanics of Materials; Mechanical Engineering; Industrial and Manufacturing EngineeringMicromechanicchemistry.chemical_classificationbiologybusiness.industryMechanical EngineeringAgave fiberEpoxy021001 nanoscience & nanotechnologyAgavebiology.organism_classification0104 chemical sciencesRenewable energychemistryMechanics of Materialsvisual_artCeramics and Compositesvisual_art.visual_art_mediumPLA0210 nano-technologybusinessBiocomposite
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Effect of sodium bicarbonate treatment on mechanical properties of flax-reinforced epoxy composite materials

2017

This paper deals with the evaluation of the effect of an eco-friendly and cost-effective surface treatment based on the use of sodium bicarbonate on the mechanical properties of flax-reinforced epoxy composites. To this aim, unidirectional fabrics were soaked for five days in 5 and 10% in weight of sodium bicarbonate solution at 25℃. Quasi-static and dynamic mechanical tests were performed and the fracture surfaces of the composites were analyzed through scanning electron microscopy. Results evidenced that this treatment improves the fiber–matrix adhesion thus increasing the performances of the composites. Treating the fabrics with 10% w/w of bicarbonate solution leads to improvements of ∼…

Sodium bicarbonateMaterials scienceChemical treatmentMechanical Engineering02 engineering and technologyEpoxy010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical scienceschemistry.chemical_compoundNatural fiber flax epoxy chemical treatment sodium bicarbonate fiber–matrix adhesioneSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialichemistryMechanics of MaterialsFiber matrix adhesionvisual_artMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumComposite material0210 nano-technologyNatural fiber
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