Aproveitamento da glicerina proveniente da produção de biodiesel na obtenção de híbrido de caulinita para adsorção de Cr3+

Leonel, E. C.; Faria, Emerson H. de; Pimentel, Rosalinda Chedian; Nassar, Eduardo J.; Ciuffi, Kátia J.; Reis, Márcio José dos; Calefi, Paulo S.

doi:10.1590/s0100-40422012000700022

Cited by 5 publications

(2 citation statements)

References 13 publications

(27 reference statements)

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“…The use of coupling agents is the most popular technique for the production of WPC, mainly due to its rapid production, in addition to being a convenient and attractive method, in the sense that it can facilitate the preparation steps by directly melting the mixture of the natural fiber with the thermoplastic polymer [7,8]. As for the renewable coupling agents, glycerol is a byproduct derived from the production of biodiesel, whose production in Brazil is higher than its consumed volume, even though it is an industrially versatile product, therefore, its application in composites would present an alternative to use part of the crude glycerol produced [9]. Oleic acid comes from vegetable oils, is renewable, biodegradable and non-toxic [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of the use of Renewable Compatibility Agent Wood Plastic Composite (WPC)

Marin

Chiarello²,

Gruber³

et al. 2022

J. Res. Updates Polym. Sci.

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The growing interest in using recycled and natural materials in the application of new composites in recent years implies ecological, economic and versatility benefits. Wood plastic composite (WPC) are considered very attractive materials, as they allow the use of polymers of recycled or virgin origin, associated with forestry by-products. The present work aims to investigate the influence on the mechanical, thermal and morphological resistance of WPC, using oleic acid and glycerol as renewable coupling agents. Composites were also prepared with a commercial compatibility agent in its formulation - maleic anhydride grafted polypropylene (MAPP) - under the same conditions. The composites were prepared in a single-screw extruder, with fixed contents of 5% sawdust with 95% virgin polymer, of this total, 2% were coupling agents: MAPP, oleic acid or glycerol, according to the desired composition. To be evaluated as changes in mechanical properties, tensile and impact strength tests were performed on specimens obtained through the injection molding process. The fracture surfaces of specimens tested in tensile tests were examined using images generated by scanning electron microscopy. The thermal stability of the composites was also investigated by thermogravimetric analysis. The use of glycerol and oleic acid improved the mechanical properties of the composite. An increase in tensile strength is observed when glycerol is added in composite. As for impact strength, the addition of glycerol or oleic acid was around 58% higher in impact strength when compared to without coupling agent. Glycerol and oleic acid are renewable, low-cost alternative to be a potential substitute for the commercial coupling agent MAPP, especially when the main requirement is to obtain better impact resistance properties.

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Section: Introductionmentioning

confidence: 99%

Influence of the use of Renewable Compatibility Agent Wood Plastic Composite (WPC)

Marin

Chiarello²,

Gruber³

et al. 2022

J. Res. Updates Polym. Sci.

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“…1 Several works have reported on clay modification and on clay adsorption capacity for environmental use as adsorbents. [2][3][4][5][6][7][8][9][10][11][12] In addition, clay materials can undergo intercalation reactions and/or functionalization of its interlayers and/or surface area, to afford hybrid materials. The -OH groups present in the clay edges will react with silane through condensation reactions via the sol-gel method.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Materials Based on Bentonite Functionalized with Amine Groups via the Hydrolytic Sol-Gel Method

Gilberto¹,

Marçal²,

Silva³

et al. 2015

Journal of the Brazilian Chemical Society

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Bentonite is a natural clay that presents characteristics such as good capacity to exchange cations, large specific surface area, large porosity, and possibility to undergo intercalation and/or functionalization. This work reports on bentonite functionalization with organomodified alkoxides. Functionalization afforded hybrid materials displaying desirable properties for adsorption of chromium trivalent ions. Infrared absorption spectroscopy, X-ray powder diffraction, thermal analysis, specific surface area analysis, and adsorption experiments with methylene blue helped to characterize the materials and evaluate their cationic exchange capability. These techniques evidenced functionalization of the Brazilian bentonite. Kinetic and equilibrium experiments on the adsorption of chromium trivalent ions aided determination of the equilibrium time of kinetic adsorption isotherms and revealed whether the functionalized matrices adsorbed chromium trivalent ions. Chromium displayed S1 type adsorption isotherms, which confirmed that adsorption capacity originated from cooperative forces between the adsorbate and the hybrid adsorbents.

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Thermal and rheological properties of soapberry Sapindus saponaria L. (Sapindaceae) oil biodiesel and its blends with petrodiesel

Pelegrini

Sudati

Ré

et al. 2017

Fuel

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Aproveitamento da glicerina proveniente da produção de biodiesel na obtenção de híbrido de caulinita para adsorção de Cr3+

Cited by 5 publications

References 13 publications

Influence of the use of Renewable Compatibility Agent Wood Plastic Composite (WPC)

Influence of the use of Renewable Compatibility Agent Wood Plastic Composite (WPC)

Hybrid Materials Based on Bentonite Functionalized with Amine Groups via the Hydrolytic Sol-Gel Method

Thermal and rheological properties of soapberry Sapindus saponaria L. (Sapindaceae) oil biodiesel and its blends with petrodiesel

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