András Bartos
Budapest University of Technology and Economics
ParticleComposite numberUltimate tensile strengthCoupling (piping)BagasseDeformation (engineering)Composite materialAcoustic emissionShrinkageTensile testingMaterials scienceHemicelluloseNatural fiberMicrofibrilPolypropyleneExtrusionInjection mouldingCelluloseChitosanWood flourThermoplasticFiller (packaging)Impact resistancePolypropylene compositesChemical engineeringFracture (geology)CrystallinityMolding (process)FiberPolymerStarchFracture mechanicsMolding (decorative)Shear (sheet metal)AdhesionStress (mechanics)
7Publications
3H-index
41Citations
Publications 7
Newest
#1Bence Balla (BME: Budapest University of Technology and Economics)
#2András Bartos (BME: Budapest University of Technology and Economics)H-Index: 3
Last. Erika Fekete (BME: Budapest University of Technology and Economics)H-Index: 21
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Abstract null null To develop an adequate matrix polymer for agricultural or packaging applications, thermoplastic starch (TPS)/chitosan composites were prepared in a wide composition range either by injection moulding or in an internal mixer followed by compression moulding. Chitosan behaves as filler forming dispersed structure in TPS samples prepared by thermomechanical methods without any additional acid. In the TPS composites chitosan has a considerable reinforcing effect. Regardless of the...
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#1András Bartos (BME: Budapest University of Technology and Economics)H-Index: 3
#2Judit Kócs (BME: Budapest University of Technology and Economics)
Last. Béla Pukánszky (BME: Budapest University of Technology and Economics)H-Index: 64
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ABSTRACT PP/sugarcane bagasse fiber composites were prepared by injection molding from two fractions of fibers with different particle characteristics. The mechanical properties of the composites were characterized by tensile and impact measurements, while local deformation processes by acoustic emission testing and microscopy. The determination of fiber dimensions after processing showed that considerable attrition takes place during melt processing in both the length and the diameter of the fi...
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#1Róbert Várdai (BME: Budapest University of Technology and Economics)H-Index: 4
Last. Béla Pukánszky (BME: Budapest University of Technology and Economics)H-Index: 64
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#1András Bartos (BME: Budapest University of Technology and Economics)H-Index: 3
#2Kristof Nagy (BME: Budapest University of Technology and Economics)H-Index: 1
Last. Béla Pukánszky (BME: Budapest University of Technology and Economics)H-Index: 64
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Abstract PLA/sugarcane bagasse fiber composites were prepared by injection molding from two fractions of fibers with different fiber characteristics, which were determined before and after processing. Interfacial adhesion was modified by a maleated PLA coupling agent. The mechanical properties of the composites were characterized by tensile and impact testing, while local deformation processes by acoustic emission testing and microscopy. The results showed that considerable attrition takes place...
1 CitationsSource
#1András Bartos (BME: Budapest University of Technology and Economics)H-Index: 3
#2Benny Putra Utomo (Petra Christian University)H-Index: 1
Last. Béla Pukánszky (BME: Budapest University of Technology and Economics)H-Index: 64
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Abstract Polypropylene composites were prepared from neat and alkali-treated sugarcane bagasse fibers. The results showed that alkali treatment leads to an increase in composite stiffness and strength. A maximum is achieved in these properties at around 5 wt% NaOH content of the treating solution. The increase in properties was assigned to the improvement in inherent fiber characteristics. Acoustic emission testing and electron microscopy showed that the two main local deformation processes rela...
3 CitationsSource
#1András Bartos (BME: Budapest University of Technology and Economics)H-Index: 3
#2Juliana Anggono (Petra Christian University)H-Index: 8
Last. Béla Pukánszky (BME: Budapest University of Technology and Economics)H-Index: 64
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Abstract Lignocellulosic fibers extracted from sugarcane bagasse were treated with NaOH solutions of different concentration (0-40 wt%) to study the effect of alkali treatment on the composition, structure and properties of the fibers. Composition was determined by the van Soest method, structure was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), while mechanical properties by tensile testing. Hemicellulose and lignin content decrease, while cellulose content go...
17 CitationsSource
#1Juliana Anggono (Petra Christian University)H-Index: 8
#2Ágnes Elvira Farkas (MTA: Hungarian Academy of Sciences)H-Index: 2
Last. Béla Pukánszky (MTA: Hungarian Academy of Sciences)H-Index: 64
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Abstract Polypropylene composites were prepared from sugarcane bagasse fibers by extrusion and injection molding. Wood flour was used as reference filler in the study. The fiber content of the composites changed between 0 and 30 wt% in 5 wt% steps. Maleated polypropylene was used as coupling agent to improve interfacial adhesion. Mechanical properties were characterized by tensile and fracture testing, while local deformation processes were followed by acoustic emission and instrumented impact t...
21 CitationsSource