Now showing items 1-10 of 50
Effects of thermal treatment on phase transitions and on the mechanical relaxation in poly(vinylidene fluoride)
This work reports on the effects from thermal treatment in poly(vinylidene fluoride), PVDF, obtained with differential scanning calorimetry (DSC) and dynamic thermal analysis (DMA) measurements. It is shown that in successive ...
Synthesis, characterization and thermal behaviour of solid-state compounds of 4-methoxybenzoate with some bivalent transition metal ions
Solid-state M-4-MeO-Bz compounds, where M stands for bivalent Mn, Co, Ni, Cu and Zn and 4-MeO-Bz is 4-methoxybenzoate, have been synthesized. Simultaneous thermogravimetry-differential thermal analysis (TG-DTA), differential ...
Characterization of curaua fiber
This paper describes the chemical, thermal and thermomechanical characterization of curaua fiber. The research of the thermal and thermomechanical properties of natural fibers is of major interest, considering their ...
The effect of ionic strength on the structural organization of dioctadecyldimethylammonium bromide in aqueous solution
High-curvature and stabilized vesicles of dioctadecyldimethylammonium bromide (DODABr) can be formed spontaneously in aqueous electrolytic solution. It is shown by cryo-transmission electron microscopy that 5.0 mM DODABr ...
Short-chain di-ureasil ormolytes doped with potassium triflate: Phase diagram and conductivity behavior
Di-urea cross-linked poly(oxyethylene)/siloxane hybrids, synthesized by the sol-gel process and containing a wide concentration range of potassium triflate, KCF3SO3, have been analyzed by x-ray diffraction and differential ...
Influence of the processing conditions and corona poling on the morphology of β-PVDF
The α → β phase transformation of PVDF through the stretching process at different temperatures was investigated. The optimum stretching conditions were studied and characterised by infrared spectroscopy and differential ...
Thermoanalytical study of heavier trivalent lanthanides fumarates
Solid-state heavier lanthanides fumarates compounds have been synthesized, and the compounds were characterized by employing simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning ...
Thermal tool in the evaluation of the "pinhão'' (seed of Araucaria angustifolia) starch aimed agroindustrial process.
(Brazilian Journal of Thermal Analysis, v. 7, p. 144-147, 2015., 2015)
PBAT-PLA blends used in shopping bags: characterization by differential scanning calorimetry, raman spectroscopy and wide angle x-ray diffraction
(Associação Brasileira de PolímerosFlorianópolis, 2013)
In this work we have investigated the microscopical changes associated with the biodegradation in simulated soil (16 weeks) of poly (butylene adipate-coterephthalate) (PBAT) and poly(lactic acid) (PLA) blends by means of ...
High Pressure Pressure Processing (hpp) Of Pea Starch: Effect On The Gelatinization Properties
(Elsevier Science BVAmsterdam, 2017)