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Showing 1 to 12 of 12 for “"Capillary rheometry"”.
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Capillary rheometry of soy isolate dough
… (Promine-D) dough is determined using an Instron capillary rheometer at 298K, 333K and 363K. Thermal transitions of 10 to 100% soy isolate dough are measured using a Perkin-Elmer Differential Scanning Calorimeter (DSC-2) over 310 to 350K. The observed behavior of the soy isolate doughs is …
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Production And Structure/Properties Of Nylon-6 Core / Isotactic Polypropylene Sheath Bicomponent Fibers Suitable For Use In Carpeting Applications
… from these materials was obtained using capillary rheometry. A number of analytical techniques including DSC, TGA, and SEM were used to better understand the structure of the maleated materials.
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INVESTIGATING RHEOLOGICAL TECHNIQUES TO MODEL AND PREDICT OPERATING CONDITIONS OF A SINGLE SCREW EXTRUDER WITH INTERNAL RESTRICTIONS
… predicting extrusion conditions. Both off-line capillary rheometry and in-line extruder fed rheometry techniques have been used to model rheology of materials during extrusion. Investigations on use of an off-line capillary rheometer to model apparent viscosity of full fat soy flours revealed …
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The Effect of Matrix Molecular Weight on the Dispersion of Nanoclay in Unmodified High Density Polyethylene
… thermal analysis (DMTA), as well as dynamic and capillary rheometry were performed on the nanocomposites. Nanocomposites generated from the high molecular weight (HMW) HDPE matrix exhibited increased intercalation of the MMT as shown by XRD as well as greater improvements in the Young's modulus …
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The extrusion processing of instant coffee for the purposes of creating a pressurised microstructure
… investigated. The primary technique used was capillary rheometry, as the viscous behaviour of molten instant coffee is a major contributor to the behaviour of bubbles within the fluid. The experimental technique was supplemented by analytical and computational modelling of the pressure losses …
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The rheology of liquid crystal polymer blends.
… chain thermotropic liquid crystal polymers using capillary rheometry. Samples of these blends were moulded and tested using a Hounsfield tensometer and a Houndsfield swinging arm impact rig. The addition of a small amount of liquid crystal polymer was found to have a major effect upon both the …
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Rheology of molten polystyrene with dissolved gases
… (HFC) refrigerants. A modified pressurized capillary rheometer was employed for the viscosity measurement of molten polystyrene with dissolved gases under elevated pressures and at various temperatures. Experimental results show a significant reduction of viscosity due to dissolved gas, …
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On-line shear and extensional rheometry of polymer melts in the extrusion process.
A novel on-line capillary rheometer (OLR) was used to examine the shear and extensional characteristics of polyolefin melts during twin screw extrusion (TSE). Comparisons with off-line rheometry were made using a twin-bore capillary rheometer and a modular in-line slit die rheometer (ILR) provided …
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On-line shear and extensional rheometry of polymer melts in the extrusion process.
A novel on‑line capillary rheometer (OLR) was used to examine the shear and extensional characteristics of polyolefin melts during twin screw extrusion (TSE). Comparisons with off‑line rheometry were made using a twin‑bore capillary rheometer and a modular in‑line slit die rheometer (ILR) provided …
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Characterisation of drug loaded insoluble polymeric matrices prepared by hot melt extrusion technology for drug delivery applications.
… Eudragif*' RL PO systems were investigated using capillary rheometry. Capillary rheometry has been used extensively in the engineering sector to characterise polymer melts but has attracted limited interest within the pharmaceutical field in spite of unsurpassable potential to characterise drug …
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Melt Processable Poly(acrylonitrile)-based Precursors for Carbon Fiber Production and Advanced Polymeric Membranes for Gas Separation and Water Electrolysis Applications
… reported. From isothermal DSC and pressurized capillary rheometry experiments it was found that the stability of the resulting melts shows a strong temperature dependence, but does not show a strong dependence on shear rate. Copolymer mixtures with H2O and acetonitrile or H2O and adiponitrile …
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In-line process measurements for injection moulding control. In-line rheology and primary injection phase process measurements for injection moulding of semi-crystalline thermoplastics, using instrumented computer monitored injection moulding machines, for potential use in closed loop process control
In-line rheological and process measurements are studied, during the primary injection phase, as a potential aid to closed loop process control for injection moulding. The feasibilities of attaining rheological and process measurements of sufficient accuracy and precision for use in process control …