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Showing 1 to 20 of 44 for “"Twin screw extruder"”.
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Development of a multi-purpose twin-screw extruder
… World countries in which mainly single process twin-screw extruders are used. This leaves a void for the development for a multi-purpose twin-screw extruder. This will enable companies to manufacture a greater diversity of products with one machine, not only in South Africa, but in the rest of …
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Novel Application of Twin Screw Extruder on Production of Diverse Formulations
Twin-screw extruder has attracted considerable attention in the pharmaceutical industry as an alternative processing instrument due to its advantages compared to other conventional equipment, such as economical processing, small footprint, reduced in-process times, solvent-free and continuous …
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Flow and mixing studies in a co-rotating intermeshing twin screw extruder
… in the process of polymer melt extrusion by twin screw extruder is limited by their geometrical complexity and the interactions of the process parameters. Mixing and flow in a 100mm diameter, trapezoidal channeled, intermeshing co-rotating twin-screw extruder have been characterised by …
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Continuous Devulcanization of Ground Tire Rubber of Different Particle Sizes Using an Ultrasonic Twin-Screw Extruder
… was conducted using an ultrasonic co-rotating twin-screw extruder at ultrasonic amplitudes from 5 to 13 µm and a frequency of 40 kHz. Ultrasonic power consumption and die pressure during devulcanization, curing behavior of devulcanized rubber, gel fraction and rheological properties of …
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Flow field analysis of some mixing and conveying screw element regions, within a closely intermeshing, co-rotating twin-screw extruder.
… process to a continuous processor, such as an extruder, has, typically, been empirical. To have more confidence in the success of direct transfer of the process requires knowledge of, and comparison between, residence times, mixing intensities, shear rates and flow regimes in the internal mixer …
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Understanding the Role of Extrusion Processing Parameters on Functional Properties of Distillers Dried Grains Extruded Using Single and Twin Screw Extruder
<p>Com distillers dried grains (DDG) were extruder in a com meal base using single screw extruder and twin screw extruder to study the functional properties of the resulting extrudates. Four different studies were done to see that if formulations were treated differently then there will be …
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Effects of API particle size on the dissolution rate in molten polymer excipient matrices during hot melt extrusion, conducted in a co-rotating twin-screw extruder
… extrusion is investigated using a co-rotating twin-screw extruder with three different screw configurations. Acetaminophen (APAP) and amphiphilic polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer (PVCap-PVAc-PEG) (Soluplus) are chosen as the model API and water- …
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On-line rheology, flow simulation and system-based modelling of twin-screw extrusion processing of corn meal
… corn meal formulations was carried out using a twin screw extruder as a rheometer. On-line rheometrical techniques used for rheological characterization of non-food polymers were modified to make them adaptable to food materials extruded in a twin-screw extruder. The experimentally obtained …
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Review of energy harvesting methods for twin screw extruders
… wireless sensor networks for system monitoring. Twin screw extruders are a type of extrusion processing machinery and could benefit from a condition monitoring system. Implementing a condition monitoring system for a twin screw extruder can prevent wasting materials, producing unusable products, …
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Investigation of factors that influence coloration in polycarbonate based compounded plastics
… of three process parameters: temperature, screw speed and feed rate. Typical plastic grades and associated colour formulations were selected for experimentation and analysis in consultation with the innovation team of SABIC IP at their Cobourg plant. Included among the selection criteria …
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Texturization of soy protein via twin-screw extrusion
… extenders. In this study, a Werner & Pfleiderer twin-screw extruder Model ZSK-30 was used to texturize defatted soy flour and soy protein concentrate. A cooled sheeting die was designed to enhance the texture integrity of the finished product. Rheological properties of extrudates were measured by …
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Extrusion processing of selected fish feed blends containing distillers dried grains with solubles (DDGS)
… fish feeds. Two extrusion studies using a single-screw extruder and two studies using a twin-screw extruder were conducted to prepare nutritionally-balanced diets for yellow perch (Perca flavescens), rainbow trout (Oncorhynchus mykiss), and Nile Tilapia (Oreochromis niloticus L.). The ingredient …
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Processing melt blended polymer nanocomposites using a novel laboratory mini-mixer. Development of polymer nanocomposites in the melt phase using a novel mini-mixer.
… been done using the likes of the Haake twin screw extruder to manufacture nanocomposites within the laboratory but this research project has used a novel minimixer specifically developed to replicate mixing like large twin screw extrusion machines. The minimixer uses a twin paddle system …
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Process analytical technology in tablet manufacturing
… process; blending by cube mixer, granulation by twin-screw extruder and including finished product properties. Critical process parameters were identified through design of experiments (DoE), and then data of each step was recorded by widely accepted PAT approaches (e.g. near-infrared …
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Regime map development for co-rotating twin screw granulation
… thesis focused on one of the main equipments – twin screw extruder and attempted to develop the regime maps and the granulation hypothesis for twin screw granulation. In order to compare the mechanism with high-shear granulation that has been studied [1], the same materials were chosen (MCC …
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Chain Extension of Polyamide-6 & Polyamide-6/Organoclay Nanocomposites. Control of thermal degradation of polyamide-6/organoclay nanocomposites during extrusion using a novel chain extender
… The materials were compounded using a linear twin extruder and various laboratory scale mixers. The effects of organoclay and chain extender were studied using both processing methods. In order to replicate large scale production used in industry, a comprehensive plan of experimental work was …
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Characterization of starch-additive interactions in starch-based systems during twin-screw extrusion
… feed composition on the overall performance of a twin-screw extruder and the final product characteristics were investigated. Addition of ingredients such as silicon dioxide and oil to a starch-based feed not only had an effect on the rheological behavior of the dough during extrusion, but also a …
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Feasibility of AquasolveTM HPMC-AS Lg via Hot-melt Extrusion: Effect of Pressurized CO2 on Physico-mechanical Properties
… mixtures were extruded through the co-rotating twin-screw extruder (16mm Prism Euro Lab, Thermo Fisher Scientific) utilizing a standard screw configuration. P-CO 2 was injected into eight zone of extruder using a high-pressure regulator connected to flexible stainless-steel hose with armor …
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Synthesis and characterisation of polyamide 6 blends made by reactive extrusion
… been undertaken on an intermeshing co-rotating twin-screw extruder for the preparation of polyamide 6. An optimised extruder screw and barrel configuration was used during reactive extrusion process to permit necessary feeding, mixing, devolatilising and pumping requirements. Various screw …
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