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Influência de polipropileno maleado no comportamento de fratura (EWF) de compósitos de polipropileno/fibra de vidro
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, 2012-04-11)
Thermoplastic composites reinforced with short glass fibers, to be used in technical engineering applications, usually requires a good balance of properties, such as strength and tenacity. For the case of the composite of ...
Modelagem fenomenológica da síntese enzimática de biodiesel etanólico utilizando lipase solúvel
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2018-03-27)
The kinetics study of the synthesis of ethyl biodiesel allows a deeper understanding of the enzymatic process, providing an important tool for process design, optimization and control. Most of the models proposed in the ...
Influência da nanoargila no envelhecimento higrotérmico de compósitos de polipropileno / PP maleado / fibra de vidro
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, 2010-05-21)
In short glass fiber (GF) reinforced polypropylene (PP) composites, despite of the chemically inert and non-polar nature of the matrix, the fiber-matrix interfacial integrity may be compromised in a hygrothermal active ...
Fluorescence depolarization and contact angle investigation of dynamic and static interfacial tension of liquid crystal display materials
(2003)
Interfacial interactions control two processes empirically known to be critical for molecular anchoring in twisted nematic liquid crystal displays technology (TN-LCDs): surface treatment and filling procedure. Static and ...
Creep and dynamic mechanical behavior of PP-jute composites: Effect of the interfacial adhesion
(Elsevier, 2007-06)
The dynamic mechanical response and the short term creep-recovery behavior of composites made from bi-directional jute fabrics and polypropylene were studied. In order to improve the compatibility of the polar fibers and ...
Breakdown of the Debye polarization ansatz at protein-water interfaces
(American Institute Of Physics, 2013-06)
The topographical and physico-chemical complexity of protein-water interfaces scales down to the sub-nanoscale range. At this level of confinement, we demonstrate that the dielectric structure of interfacial water entails ...
Ecologically safe sugar-based gemini surfactants
(Arkat USA, 2006-01)
Gemini surfactants have appeared in the early 1990s as a new type of surfactants with two polar heads and two alkyl tails linked by an spacer. These structural feature give to these type of surfactants unprecedented and ...
Interfacial properties modulated by the water confinement in reverse micelles created by the ionic liquid-like surfactant bmim-AOT
(Royal Society of Chemistry, 2019-02)
The behavior of the interfacial water entrapped in reverse micelles (RMs) that were formed by the ionic liquid-like surfactant 1-butyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate (bmim-AOT) was investigated with ...
Análise comparativa de fadiga mecânica em compósitos de polipropileno com talco e com nanoargila
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, 2010-05-17)
Talc is a well known lamellar mineral filler much used for mechanical reinforcement of polypropylene (PP) composites. Mineral nanoclay is also a lamellar filler that is gaining much interest due to its reinforcement effect ...