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Development of crosslinkable, thermoplastic polyurethanes for cardiovascular prostheses
(Stellenbosch : University of Stellenbosch, 2006-12)
Existing thermoplastic polyurethanes (TPUs), used in the manufacturing of
cardiovascular devices, still have unproven long-term biostability and may be prone to
excessive plastic deformation when subjected to cyclic ...
Separation of 1-dodecanol and n-tetradecane through supercritical extraction.
(Stellenbosch : Stellenbosch University, 2008-12)
Developments in the field of liquid detergents and cosmetics have increased the demand for
surfactants, processing aids and emollients. Alcohols are often used in liquid products where
they serve as solvents for the ...
The processing of wax and wax additives with supercritical fluids
(Stellenbosch : University of Stellenbosch, 2005-12)
Waxes have many potential uses but large-scale application is hampered by their virtual
insolubility. By grafting the wax with a polyethylene glycol segment to form an alcohol ethoxylate,
the solubility of the wax in ...
Production of hollow fibers by co-electrospinning of cellulose acetate
(Stellenbosch : University of Stellenbosch, 2009-03)
The study concerns the use of the electrospinning technique for the formation of
cellulose acetate hollow nanofibers. These hollow fibers are used to manufacture
hollow fiber membranes. Important properties that should ...
Scale-up and control of a multi-component emulsion polymerization system
(Stellenbosch : Stellenbosch University, 2000-03)
ENGLISH ABSTRACT: ABSTRACT:
A new emulsion (code name: NW 120) has been developed by Plascon on
laboratory scale, for application in the paint industry. It is an environmentally friendly
emulsion in which no coalescent ...
The development of vesiculated beads
(Stellenbosch : University of Stellenbosch, 2003-04)
ENGLISH ABSTRACT: Vesiculated beads consist of aerated microvoids encapsulated in a solid spherical
continuous polymeric shell. The difference in refractive index between the voids and
polymer granules causes effective ...
Quantitative yeast physiology and nitrogen metabolism during heterologous protein production
(Stellenbosch : University of Stellenbosch, 2003-04)
ENGLISH ABSTRACT: QUANTITATIVE YEAST PHYSIOLOGY AND NITROGEN METABOLISM
DURING HETEROLOGOUS PROTEIN PRODUCTION
By Johann F. Görgens
The physiology and nitrogen metabolism of the yeast, Saccharomyces cerevisiae,
during ...
The modelling of IR emission spectra and solid rocket motor parameters using neural networks and partial least squares
(Stellenbosch : University of Stellenbosch, 2003-04)
ENGLISH ABSTRACT: The emission spectrum measured in the middle infrared (IR) band from the
plume of a rocket can be used to identify rockets and track inbound missiles. It
is useful to test the stealth properties of the ...
Investigation of electrochemical combustion plant for rural water disinfection and industrial organic effluent removal
(Stellenbosch : University of Stellenbosch, 2004-04)
ENGLISH ABSTRACT: Recent years have seen the development of various treatment methods for the purification
of industrial waste waters due to the increased demand for reduced pollutant
effluents. Aqueous waste streams ...
Rheological model for paint properties
(Stellenbosch : Stellenbosch University, 2008-03)
The feasibility of predicting paint properties directly from the raw material formulation as well as
the rheological data is investigated in this study. Although extensive work has been carried out on
the prediction of ...