Influence of spherical-shaped carbon nanoparticles on the mechanical properties of a foamed sugarcane bagasse/polypropylene composite

2021 ◽  
Vol 172 ◽  
pp. 114041
Author(s):  
Mehrab Madhoushi ◽  
Amin Malakani ◽  
Ghanbar Ebrahimi ◽  
Alimorad Rashidi
Keyword(s):  
Mechanical Properties ◽  
Sugarcane Bagasse ◽  
Carbon Nanoparticles ◽  
Polypropylene Composite

Development of Approaches for Producing Polymeric Composite Materials with Higher Strength

2020 ◽  
Vol 869 ◽  
pp. 388-393
Author(s):  
Olga A. Moskalyuk ◽  
Ekaterina S. Tsobkallo ◽  
Vladimir E. Yudin
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Matrix ◽  
Supramolecular Structure ◽  
Carbon Nanoparticles ◽  
Polymeric Composite ◽  
Structural Studies ◽  
Polypropylene Composite ◽  
Low Concentrations ◽  
Oriented Polypropylene

In laboratory conditions, oriented polypropylene composite materials containing various concentrations of anisotropic carbon nanoparticles (nanofibers, nanotubes) were obtained. The change in the mechanical properties of oriented composites is determined. Based on structural studies, it was shown that the increase in strength in oriented composites is associated with the formation of a more perfect supramolecular structure of the polymer matrix due to the introduction of low concentrations of nanofillers.

scholarly journals Biocomposites of Bio-Polyethylene Reinforced with a Hydrothermal-Alkaline Sugarcane Bagasse Pulp and Coupled with a Bio-Based Compatibilizer

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2158
Author(s):  
Nanci Vanesa Ehman ◽  
Diana Ita-Nagy ◽  
Fernando Esteban Felissia ◽  
María Evangelina Vallejos ◽  
Isabel Quispe ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Water Absorption ◽  
Sugarcane Bagasse ◽  
Thermo Gravimetric Analysis ◽  
Decomposition Temperature ◽  
Gravimetric Analysis ◽  
Scanning Calorimetry ◽  
Cradle To Gate ◽  
Bagasse Pulp

Bio-polyethylene (BioPE, derived from sugarcane), sugarcane bagasse pulp, and two compatibilizers (fossil and bio-based), were used to manufacture biocomposite filaments for 3D printing. Biocomposite filaments were manufactured and characterized in detail, including measurement of water absorption, mechanical properties, thermal stability and decomposition temperature (thermo-gravimetric analysis (TGA)). Differential scanning calorimetry (DSC) was performed to measure the glass transition temperature (Tg). Scanning electron microscopy (SEM) was applied to assess the fracture area of the filaments after mechanical testing. Increases of up to 10% in water absorption were measured for the samples with 40 wt% fibers and the fossil compatibilizer. The mechanical properties were improved by increasing the fraction of bagasse fibers from 0% to 20% and 40%. The suitability of the biocomposite filaments was tested for 3D printing, and some shapes were printed as demonstrators. Importantly, in a cradle-to-gate life cycle analysis of the biocomposites, we demonstrated that replacing fossil compatibilizer with a bio-based compatibilizer contributes to a reduction in CO2-eq emissions, and an increase in CO2 capture, achieving a CO2-eq storage of 2.12 kg CO2 eq/kg for the biocomposite containing 40% bagasse fibers and 6% bio-based compatibilizer.

Use of Sugarcane Bagasse Ashes as Raw Material in the Replacement of Fluxes for Applications on Porcelain Tile

2016 ◽  
Vol 881 ◽  
pp. 383-386 ◽  
Author(s):  
Raimundo J.S. Paranhos ◽  
Wilson Acchar ◽  
Vamberto Monteiro Silva
Keyword(s):  
Mechanical Properties ◽  
Environmental Impact ◽  
Physical Properties ◽  
Sugarcane Bagasse ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Raw Material ◽  
The Cost ◽  
Potential Use ◽  
Porcelain Tile

This study evaluated the potential use of Sugarcane Bagasse Ashes (SBA) as a flux, replacing phyllite for the production of enamelled porcelain tile. The raw materials of the standard mass components and the SBA residue were characterized by testing by XRF, XRD, AG, DTA and TGA. Test samples were fabricated, assembled in lots of 3 units and sintered at temperatures of 1150 ° C to 1210 ° C. The results of the physical properties, mechanical properties and SEM of the sintered samples, showed that the formulation, G4 - in which applied 10% of SBA replacing phyllite, sintering temperature 1210 ° C showed better performance as the previously mentioned properties due to the formation of mullite crystals, meeting the prerequisites of standards for enamelled porcelain tile, while reducing the environmental impact and the cost of production.

Constitutive modeling for the mechanical behavior of rubber with filler particles

2021 ◽  
Author(s):  
Sankalp Gour ◽  
Deepu Kumar Singh ◽  
Deepak Kumar ◽  
Vinod Yadav
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Mechanical Behavior ◽  
Experimental Observation ◽  
Continuum Mechanics ◽  
Constitutive Modeling ◽  
Carbon Nanoparticles ◽  
Material Behavior ◽  
Experimental Results ◽  
Filler Particles

Abstract The present study deals with the constitutive modeling for the mechanical behavior of rubber with filler particles. An analytical model is developed to predict the mechanical properties of rubber with added filler particles based on experimental observation. To develop the same, a continuum mechanics-based hyperelasticity theory is utilized. The model is validated with the experimental results of the chloroprene and nitrile butadiene rubbers filled with different volume fractions of carbon black and carbon nanoparticles, respectively. The findings of the model agree well with the experimental results. In general, the developed model will be helpful to the materialist community working in characterizing the material behavior of tires and other rubber-like materials.

scholarly journals LAMINAR INCLUSION IN SUGARCANE BAGASSE PARTICLEBOARD

CERNE ◽  
2017 ◽  
Vol 23 (2) ◽  
pp. 153-160
Author(s):  
Stefania Lima Oliveira ◽  
Ticyane Pereira Freire ◽  
Tamires Galvão Tavares Pereira ◽  
Lourival Marin Mendes ◽  
Rafael Farinassi Mendes
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Sugarcane Bagasse ◽  
Wood Species ◽  
Sugar Cane ◽  
Physical And Mechanical Properties ◽  
Pressure Level ◽  
Sugar Cane Bagasse

ABSTRACT The objective of this study is to assess the effect of the laminar inclusion on the physical and mechanical properties of sugarcane bagasse particleboard. We used the commercial panels of sugarcane bagasse produced in China. To evaluate the effect of the laminar inclusion was tested two wood species (Pinus and Eucalyptus) and two pressures (10 and 15 kgf.cm-2) along with a control (without laminar inclusion). The panels with laminar inclusion obtained improvements in the physical properties, with a significant reduction in the WA2h, WA24h and TS2h. There was a significant increase in the properties MOE and MOR parallel and Janka hardness, while the properties MOE and MOR perpendicular decreased significantly. The pinus and eucalyptus veneers inclusion resulted in similar results when added to the panel with a 10 kgf.cm-2 pressure. The use of 15 kgf.cm-2 pressure is not indicated for the pinus veneer inclusion in sugar cane bagasse panels. There was no effect of the pressure level when evaluating the eucalyptus veneer inclusion on the properties of the sugarcane bagasse panels.

scholarly journals Investigation of Structure and Physico-Mechanical Properties of Composite Materials Based on Copper - Carbon Nanoparticles Powder Systems

2015 ◽  
Vol 60 (1) ◽  
pp. 51-55
Author(s):  
V. Kovtun ◽  
V. Pasovets ◽  
T. Pieczonka
Keyword(s):  
Mechanical Properties ◽  
Mechanical Activation ◽  
Metal Matrix ◽  
Carbon Nanoparticles ◽  
Copper Matrix ◽  
Metal Particles ◽  
Powder Materials ◽  
Sintered Copper ◽  
Mechanical Bonding ◽  
Preliminary Mechanical Activation

Abstract Physico-mechanical and structural properties of electrocontact sintered copper matrix- carbon nanoparticles composite powder materials are presented. Scanning electron microscopy revealed the influence of preliminary mechanical activation of the powder system on distribution of carbon nanoparticles in the metal matrix. Mechanical activation ensures mechanical bonding of nanoparticles to the surface of metal particles, thus giving a possibility for manufacture of a composite with high physico-mechanical properties.

scholarly journals PROPERTIES OF PARTICLEBOARD PANELS MADE OF SUGARCANE PARTICLES WITH AND WITHOUT HEAT TREATMENT

2019 ◽  
Vol 43 (5) ◽  
Author(s):  
Emerson Gomes Milagres ◽  
Raiana Augusta Grandal Savino Barbosa ◽  
Karine Fernandes Caiafa ◽  
Gabriel Soares Lopes Gomes ◽  
Tatiana Aurora Condezo Castro ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Sugarcane Bagasse ◽  
Linear Expansion ◽  
Basic Density ◽  
Water Vapor Adsorption ◽  
Thickness Swelling ◽  
Specific Mass ◽  
Heat Treated ◽  
Significant Difference

ABSTRACT The objective of this work was to determine the properties of particleboard panels made of “in natura” sugarcane bagasse particles, heated at 250 °C for 5 minutes. Various particle proportions were utilized to produce the panels and their properties were compared with that of a panel made of Pinus sp. The panels were produced with 8% tannin formaldehyde adhesive, and 0.5% paraffin emulsion, being pressed at 32 kgf.cm-2 for 10 minutes at 180 ° C. It was determined the basic density of the “in natura” and heat-treated particles, their chemical composition, as well as the compression ratio necessary to obtain panels with density equal to 0.75 g.cm-3. The basic density of the panels, hygroscopic equilibrium humidity, thickness swelling, linear expansion, water vapor adsorption, modulus of elasticity and rupture, perpendicular traction, screw pullout, and Janka hardness were determined. The basic densities of Pinus particles and sugarcane bagasse without and with heat treatment were 0.46, 0.27 and 0.30 g.cm-3, respectively. The average specific mass of the panels was 0.74 g.cm-3 with no significant difference between them. Generally, panels made of sugarcane particles were less hygroscopic and dimensionally more stable than panels made of Pinus particles. However, the perpendicular tensile strength, screw pullout and Janka hardness of these panels were higher than for the Pinus panels. The heat treatment of sugarcane bagasse particles resulted in better mechanical properties of perpendicular traction and Janka hardness. In general, the panels are within the limits set by ANSI A208.1. It is therefore possible to replace panels made of Pinus particles for the ones made of sugarcane bagasse, provided that at least 25% of the particles are heat treated for 5 minutes at 250 ° C.

scholarly journals Manufacturing and Evaluation of Mechanical, Morphological, and Thermal Properties of Reduced Graphene Oxide-Reinforced Expanded Polystyrene (EPS) Nanocomposites

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Tomasz Rydzkowski ◽  
Kazimierz Reszka ◽  
Mieczysław Szczypiński ◽  
Michał Marek Szczypiński ◽  
Elżbieta Kopczyńska ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Carbon Nanoparticles ◽  
Bending Strength ◽  
Expanded Polystyrene ◽  
Thermal Conductivity Ratio ◽  
Reduced Graphene ◽  
Similar Density ◽  
The Impact

The aim of the present study is to examine the effect of the addition of carbon nanoparticles (σsp2 hybridization) on the mechanical properties of foamed polystyrene. In this work, we focus on the study of the impact of compressive stress, tensile strength, bending strength, thermal conductivity ratio (λ), and water absorption of expanded polystyrene (EPS) reinforced with reduced graphene oxide and graphite. The results were compared with pristine EPS and reduced graphene oxide-reinforced EPS. All the nanocomposite specimens used for testing had a similar density. The study reveals that the nanocomposites exhibit different thermal conductivities and mechanical properties in comparison to pristine EPS. The enhancement in the properties of the nanocomposite could be associated with a more extensive structure of elementary cells of expanded polystyrene granules.

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