Search results for " chemical treatment"

showing 2 items of 2 documents

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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A new eco-friendly chemical treatment of natural fibres: Effect of sodium bicarbonate on properties of sisal fibre and its epoxy composites

2016

Abstract Several researchers have shown how sisal fibres possess remarkable tensile properties that yield them good candidates as reinforcement in biocomposite materials. This work aims to evaluate the effect of an eco-friendly and cost effective surface treatment method based on the use of commercial sodium bicarbonate (i.e. baking soda) on properties of sisal fibre and its epoxy composites. In particular, raw sisal fibres were treated with a 10%w/w of sodium bicarbonate solution for different periods (24, 120 and 240 h), at room temperature. Changes occurring in sisal fibres were characterized through scanning electron microscope, Fourier transform infrared spectroscopy, thermogravimetric…

Thermogravimetric analysisMaterials scienceScanning electron microscopeB. Mechanical propertie02 engineering and technology010402 general chemistry01 natural sciencesIndustrial and Manufacturing EngineeringFibreFlexural strengthUltimate tensile strengthThermal analysisComposite materialFourier transform infrared spectroscopySISALcomputer.programming_languageStatistical properties/methodMechanical EngineeringEpoxyChemical treatment021001 nanoscience & nanotechnology0104 chemical sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiMechanics of Materialsvisual_artCeramics and Compositesvisual_art.visual_art_mediumBiocomposite0210 nano-technologycomputerA. Fibres; B. Mechanical properties; C. Statistical properties/methods; Chemical treatment; D. Thermal analysis; Ceramics and Composites; Mechanics of Materials; Mechanical Engineering; Industrial and Manufacturing Engineering
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