Πλοήγηση ανά Θέμα "Polymer Science"
Αποτελέσματα 1-9 από 9
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3D Features in the Calendering of Thermoplastics: A Computational Investigation
(2014)We present results of a fully three-dimensional computational study of the calendering process of thermoplastics using the fluid dynamics software OpenFOAM. Our aim is to elucidate unique 3D features of the process, such ... -
Computer-aided estimation of diffusion coefficients in non-solvent/polymer systems
(2001)Full Paper: A novel method for estimating the mutual and self-diffusion coefficients of a non-solvent/polymer system is proposed in this work. The idea is to stud the evaporation process from non-solvent/solvent/polymer ... -
The Effect of Certain Morphological Features on the Permeability of Clustered Fibrous Media
(2009)A good understanding of the microscopic details of flow through fiber preforms remains a critical step in the design and optimization of composite liquid molding processes such as Resin Transfer Molding (RTM) and its ... -
Effect of sugars, galactose content and chainlength on freeze-thaw gelation of galactomannans
(2006)Cryogels of locust bean gum (LBG) were prepared by freezing and thawing 1.0 wt% solutions incorporating sucrose, glucose, fructose or sorbitol at concentrations of 40. 45, 50, 55 and 60 wt%, and were characterised by ... -
Gelation of high methoxy pectin by acidification with D-glucono-delta-lactone (GDL) at room temperature
(2009)Rheological comparisons have been made between preparations of high methoxy pectin (DE approximate to 70%) gelled by acidification with D-glucono-delta-lactone (GDL) on holding for 16 h at 25 degrees C in the presence of ... -
"Melt-in-the-mouth" gels from mixtures of xanthan and konjac glucomannan under acidic conditions: A rheological and calorimetric study of the mechanism of synergistic gelation
(2007)The effect of acidification on a typical commercial xanthan and on pyruvate-free xanthan (PFX), alone and in gelling mixtures with konjac glucomarman (KGM), has been studied by differential scanning calorimetry (DSC) and ... -
Polymersomes from Polypeptide Containing Triblock Co- and Terpolymers for Drug Delivery against Pancreatic Cancer: Asymmetry of the External Hydrophilic Blocks
(2014)Well-defined amphiphilic polymers of the ABA and ABC type are synthesized, where A is poly(L-lysine hydrochloride) (PLL), B is poly(g-benzyl-(d7) L-glutamate) (PBLG(-d7)), and C is poly(ethylene oxide) (PEO). The two ... -
Preparation, authentication, rheology and conformation of theta carrageenan
(2010)Lambda carrageenan was extracted from hand-sorted tetrasporophytes of Gigartina skottsbergii. Theta carrageenan was prepared from it by treatment with alkaline borohydride. Infrared spectroscopy showed complete, or essentially ... -
A study of CaCO3 scale formation and inhibition in RO and NF membrane processes
(2007)The formation of CaCO3 deposits on RO and NF membranes was investigated in connection with permeate flux decline. Experiments, in the presence and absence of scale inhibitors, were carried out in a cross-flow membrane test ...