Search Results - "Bretas, Rosario E.S"

Rheological, mechanical and transport properties of blown films of high density polyethylene nanocomposites by Lotti, Cybele, Isaac, Claudia S., Branciforti, Marcia C., Alves, Rosa M.V., Liberman, Susana, Bretas, Rosario E.S.

“…In this work, high density polyethylene (HDPE) was mixed in a twin screw extruder with organophilic treated clay, Cloisite 20A, and a compatibility agent, a…”
Get full text

Melt extruded nanocomposites of polybutylene adipate-co-terephthalate (PBAT) with phenylbutyl isocyanate modified cellulose nanocrystals by Morelli, Carolina L, Belgacem, Naceur, Bretas, Rosario E. S., Bras, Julien

“…ABSTRACT Traditional commodity polymers are widely used in several disposable or short‐life items and take hundreds of years to decompose in nature. These…”
Get full text

Nanocomposites based on renewable thermoplastic polyurethane and chemically modified cellulose nanocrystals with improved mechanical properties by Prataviera, Rogerio, Pollet, Eric, Bretas, Rosario E. S., Avérous, Luc, Lucas, Alessandra A.

“…ABSTRACT In this study, freeze‐dried cellulose nanocrystals (CNC) from eucalyptus, redispersed in dimethylformamide, is grafted with a polyurethane‐based dimer…”
Get full text

Morphological, thermal, and mechanical properties of poly(ε-caprolactone)/poly(ε-caprolactone)-grafted-cellulose nanocrystals mats produced by electrospinning by Bellani, Caroline F., Pollet, Eric, Hebraud, Anne, Pereira, Fabiano V., Schlatter, Guy, Avérous, Luc, Bretas, Rosario E. S., Branciforti, Marcia C.

“…ABSTRACT Electrospun nanocomposites of poly(ε‐caprolactone) (PCL) incorporated with PCL‐grafted cellulose nanocrystals (PCL‐g‐CNC) were produced. PCL chains…”
Get full text

Nanocomposites of PBAT and cellulose nanocrystals modified by in situ polymerization and melt extrusion by Morelli, Carolina L., Belgacem, Mohamed N., Branciforti, Márcia C., C. B. Salon, Marie, Bras, Julien, Bretas, Rosario E. S.

“…Cellulose nanocrystals (CNC) were successfully grafted with a low molecular weight poly(butylene glutarate) through an in situ polymerization procedure. The…”
Get full text

Structural, optical, and magnetic properties of KBiFe2O5 synthesized by a sol‐gel method using PVP as additive by Melo, Guilherme H. F., Gualdi, Alexandre J., Bretas, Rosario E. S.

“…KBiFe2O5 (KBFO) is a perovskite‐like inorganic material that has great potential as an absorber material for active layers of photovoltaic devices; however,…”
Get full text

Synthesis of KBiFe2O5 by electrospinning: Structural, optical, and magnetic properties by Melo, Guilherme H.F., Gualdi, Alexandre J., Bretas, Rosario E.S.

“…Ferroelectric oxides are currently being studied as absorbing materials in photovoltaic devices due to their spontaneous polarization that facilitates charge…”
Get full text

Synergic effect in electrical conductivity using a combination of two fillers in PVDF hybrids composites by da Silva, Aline Bruna, Marini, Juliano, Gelves, Genaro, Sundararaj, Uttandaraman, Gregório, Rinaldo, Bretas, Rosario E.S.

“…•Novel binary PVDF/PPy conductive blends, PVDF/MWCNT conductive nanocomposites.•Novel hybrid PVDF/PPy/MWCNT conductive nanocomposites.•Electrical…”
Get full text

Effect of MWCNT carboxyl functionalization on the shear rheological and electrical properties of HMS-PP/MWCNT foams by Bianchin, Olavo S, Melo, Guilherme HF, Bretas, Rosario ES

“…Different concentrations of multiwall carbon nanotubes (MWCNT) and carboxyl functionalized MWCNT (MWCNT-COOH) were added to a high melt strength polypropylene…”
Get full text

Preparation and characterization of PA6/PAni-TSA nanofibers by da Silva, Aline Bruna, Bretas, Rosario E.S.

“…[Display omitted] ► Nanofibers of PA6/PAni-TSA blend were obtained by electrospinning. ► Morphological, structural and mechanical characterizations were…”
Get full text

Effect of reprocessing and clay concentration on the degradation of polypropylene/montmorillonite nanocomposites during twin screw extrusion by Silvano, Josiane da R., Rodrigues, Sabrina A., Marini, Juliano, Bretas, Rosario E.S., Canevarolo, Sebastião V., Carvalho, Benjamim de M., Pinheiro, Luís A.

“…An evaluation was made of the degradation of polypropylene (PP) and montmorillonite (MMT) nanocomposites. The nanocomposites were compatibilized with…”
Get full text

Rheological, mechanical, optical, and transport properties of blown films of polyamide 6/residual monomer/montmorillonite nanocomposites by Beatrice, Cesar A.G, Branciforti, Marcia C, Alves, Rosa M.V, Bretas, Rosario E.S

“…Exfoliated nanocomposites of polyamide 6 (PA6) with residual monomer and an organically treated montmorillonite (3 and 5 wt %) were produced by twin-screw…”
Get full text

Thermal and structural characterization of nanofibers of poly(vinyl alcohol) produced by electrospinning by Guerrini, Lilia M, de Oliveira, Maurício P, Branciforti, Marcia C, Custódio, Tassiana A, Bretas, Rosario E.S

“…Poly(vinyl alcohol) (PVOH) was obtained from the alkaline hydrolysis of poly(vinyl acetate) (PVAc). Nonwoven membranes (mats) of PVOH nanofibers were produced…”
Get full text

Effect of PBT molecular weight and reactive compatibilization on the dispersed-phase coalescence of PBT/SAN blends by Larocca, Nelson M, Ito, Edson N, Rios, Carlos Triveño, Pessan, Luiz A, Bretas, Rosario E.S, Hage, Elias Jr

“…Poly(butylene terephthalate) (PBT)/styrene-acrylonitrile copolymer (SAN) blends were investigated with respect to their phase morphology. The SAN component was…”
Get full text

Study of the quiescent and shear-induced crystallization kinetics of intercalated PTT/MMT nanocomposites by Favaro, Márcia M, Rego, Bruna T, Branciforti, Márcia C, Bretas, Rosario E.S

“…An intercalated nanocomposite made of montmorillonite nanoclay, MMT, and poly(trimethylene terephthalate), PTT, was produced by twin screw extrusion and…”
Get full text

Optical monitoring of the injection molding of intercalated polypropylene nanocomposites by Moretti, Fernando, Favaro, Márcia M., Branciforti, Márcia C., Bretas, Rosario E.S.

“…Intercalated polypropylene (PP)/clay nanocomposites were produced by twin screw extrusion; afterwards, the optical monitoring of their injection molding was…”
Get full text

Optical monitoring of polypropylene crystallization during injection molding by Favaro, Márcia M., Marinelli, Alessandra L., Farah, Marcelo, Bretas, Rosario E.S.

“…The nonisothermal crystallization of polypropylene resins, i‐PP, during injection molding, using an optical device inserted in the injection mold cavity was…”
Get full text

Molecular orientation of extruded PET/LCP blend films. II. X-ray pole figures by Branciforti, Marcia C, Silva, Lucineide B, Machado, Rogerio, Bretas, Rosario E.S

“…The crystalline uniaxial molecular orientation of two liquid crystalline polymers (LCPs), Vectra®A950, and Rodrun®LC5000, blended with poly(ethylene…”
Get full text

Flexible and high dielectric permittivity composites of by Marcomini, Andre L, Dias, Jeferson A, Morelli, Mareio R, Bretas, Rosario E.S

“…Flexible composites formed by the perovskite [Na.sub.1/3][Ca.sub.1/3][Bi.sub.1/3][Cu.sub.3][Ti.sub.4][O.sub.12] (NCBCTO) with a copolymer of PVDF with TrFE…”
Get full text

Flexible and high dielectric permittivity composites of [Na.sub.1/3][Ca.sub.1/3][Bi.sub.1/3][Cu.sub.3][Ti.sub.4][O.sub.12] and vinylidene fluoride-trifluoroethylene copolymer by Marcomini, Andre L, Dias, Jeferson A, Morelli, Mareio R, Bretas, Rosario E.S

“…Flexible composites formed by the perovskite [Na.sub.1/3][Ca.sub.1/3][Bi.sub.1/3][Cu.sub.3][Ti.sub.4][O.sub.12] (NCBCTO) with a copolymer of PVDF with TrFE…”
Get full text