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Rheological Cluster
Viscometers
Stromer Viscometer
Contact: Thames-Rawlins Research Group
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Stormer Viscometer
Viscometers define viscous properties of a fluid at ambient or defined temperatures. Viscometers are used to define the viscous properties of a fluid at ambient or defined temperatures. This viscometer employs a paddle the measures the viscosity of a fluid based on the resistance to flow while stirring.
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ICI Cone Plate Viscometer
Contact: Thames-Rawlins Research Group
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ICI Cone and Plate Viscometer
This Cone/Plate Viscometer/Rheometer gives researchers a sophisticated instrument for routinely determining absolute viscosity of fluids in small sample volumes. Its cone and plate geometry provides the precision necessary for development of complete rheological data. This Viscometer/Rheometer has a precise torque meter which is driven at discrete rotational speeds. The torque measuring system, which consists of a calibrated beryllium-copper spring connecting the drive mechanism to a rotating cone, senses the resistance to rotation caused by the presence of sample fluid between the cone and a stationary flat plate. The resistance to the rotation of the cone produces a torque that is proportional to the shear stress in the fluid. The amount of torque is indicated either on a dial or digital display, depending on model. This reading is easily converted to absolute centipoise units (mPa·s) from pre-calculated range charts. Alternatively, viscosity can be calculated from the known geometric constants of the cone, the rate of rotation, and the stress related torque.
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Rheometers
TA Annular Ring Rheometer
Contact: Robert Lochhead
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TA Annular Ring Rheometer
The TA AR-G2 is the first commercial controlled stress, direct strain, and controlled rate rheometer with patent pending magnetic thrust bearing technology for ultra-low nano-torque control. It features drag cup motor technologies, Smart Swap Geometries such as a peltier control plate and a peltier concentric cylinder, an ETC camera viewer, and streaming video and image capture software.
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Advanced Rheometric
Expansion System
Contact: Joshua Otaigbe
Otaigbe Research Group
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Advanced Rheometric Expansion System
The Advanced Rheometric Expansion System (or ARES) is a rheometer (mechanical spectrometer) that is capable of subjecting a sample to either a dynamic (sinusoidal) or steady (linear) shear strain (deformation), then measuring the resultant torque expended by the sample in response to the strain. Through this instrument, the rheological properties can be measured. Strain is applied by motor, and a transducer measures the resulting torque. This is truly one of the best rheometers in the world.
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Anton-Paar Physica
MCR 501
Contact: Joshua Otaigbe
Otaigbe Research Group
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Anton-Paar Physica MCR 501
This rheometer performs a wide range of steady and dynamic tests in both Control Sheear Rate and Control Shear Strain mode. From generating simple flow curves to the dynamic analysis of complex fluids, melts, and co-polymers, this rheometer offers simple programming and test setup. This equipment can be used to run different types of analysis such as Creep and recovery, Normal force, Stress relaxation, Linear tensile and compression, including tack, Amplitude sweep, Frequency sweep, Temperature sweep, Time sweep, Multiwave, Oscillation with superimposed rotation or any combination of the above.
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RH 7 Flowmaster
Contact: Joshua Otaigbe
Otaigbe Research Group
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RH 7 Flowmaster Advanced Capillary Extrusion Rheometer
The RH 7 Flowmaster is an advanced, and powerful floor standing capillary rheometers suitable for research and product development.The Rosand RH7 has set new standards in research level capillary rheometryand is used in several hundred research laboratories around the world for a range of applications including polymers, foods, coatings and ceramics. Bohlin Instruments has continuously developed the original RH7 design and its operating software to produce a new generation of floor standing capillary units with market leading performance characteristics and capabilities. The RH7-D retains much of the robust 'H' frame design principle, which lies at the heart of the instruments' ability to operate under high loading conditions.
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HAAKE CaBER 1
Rheometer
Contact: Joshua Otaigbe
Otaigbe Research Group
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HAAKE CaBER 1 rheometer
Materials that behave similarly in a shearing flow often behave very differently in an extensional flow. The unique HAAKE CaBER 1 rheometer provides valuable information about the material's extensional properties that rotational rheometers simply cannot provide. With the CaBER 1, stringiness, filament breakup-time and extensional viscosity can be quantified to quickly optimize fluid formulations.
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HAAKE PolyDrive
Contact: Joshua Otaigbe
Otaigbe Research Group
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HAAKE PolyDrive
The HAAKE PolyDrive is a torque rheometer equipped with a single screw extruder for process optimization or product development. It is a robust plug & play instrument featuring automatic sensor recognition with calibration and control of testing procedures via software or the simple, ergonomic keypad and display. A range of accessories is available for extruding polymers, ceramics, food or drugs.
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Optical Shearing System
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Cambridge Shearing
System (CSS)
Contact: Joshua Otaigbe
Otaigbe Research Group
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The Cambridge Shearing System (CSS) has been developed in collaboration with the Department of Chemical Engineering at Cambridge University. It is designed to fit on any standard upright microscope and has a temperature range of ambient to 450C. The entire system is driven from a Windows program running on a PC. The system can work in three modes: steady velocity, step movement at constant velocity and an oscillatory motion with constant frequency and amplitude. The shear rate may also be set separately. The temperature may be programmed with up to nine ramps. The main advantage of this system is that the changes occurring in the sample as it is sheared can be visually observed through the microscope or on the PC through a video capture card.
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Gas Atomizer
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Gas Atomizer
Contact: Joshua Otaigbe
Otaigbe Research Group
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The Gas Atomization of Polymers (GAP) can be used to produce powders from materials that could not presently be made into powders using other available methods. The Gas Atomization unit is a hand built unit by the group and is divided into three zones. The heating zone is the area where the polymeric material is melted. It is comprised of a large metal crucible and heating components. The atomization zone is the area where the material is atomized into a powder. This area is at the bottom of the crucible, where a specially designed stainless steel pour tube has the polymeric material forced through it at extremely high pressures. The collection zone is by far the largest zone and is simply used to collect the powder after atomization.
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Low Shear Viscometer
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Contraves Low Shear 30
Viscometer
Contact:
Charles McCormick
McCormick Research Group
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Contraves Low Shear 30 Viscometer
Controlled strain, for steady shear measurements of viscosity in a concentric cylinder geometry. This highly sensitive instrument can measure the viscosity of air to three significant figures, and can measure the shear rate dependence of viscosity for fluids with viscosities less than 2 Poise, between 0 C and 80° C. This rheometer requires 2 ml of liquid sample, and has a shear rate range between 10-2 s -1 and 102 s -1 . The outer cup rotates at a prescribed speed, and the inner bob is connected to a torsion wire. The deflection of the torsion wire determines the torque. This rheometer is currently used to study polyelectrolyte solutions, which are strongly shear thinning at low concentrations. It has been interfaced to a computer using LabViewT.
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Stress-Controlled Rheometers
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Rheometric Scientific
SR-5000
Contact:
Charles McCormick
McCormick Research Group
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Rheometric Scientific SR-5000
Stress-controlled Rheometer
- stress controlled
- dynamic-mechanical
- measurement of viscosity
- compliance, flow curves
- T: - 40 < T < 350°C
- G: Plate-Plate 50 mm, 25 mm, 8 mm;
- Couette
- Cone-Plate 50 mm, 25 mm
Rheometric Scientific SR-5000 dynamic and steady state testing from -40°C to 250°C. Applied to rheological studies of various polymeric solutions and melts.
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Microtruder
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Microtruder
Contact: Joshua Otaigbe
Otaigbe Research Group
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The Microtruder is a laboratory scale (tabletop size) single screw extruder. The size is micro but the application is almost same as a commercialized large-scale extruder. This particular vertical screw design gives us micro space occupation and natural gravitational feeding of the polymers. The special die design provides the manufacturing possibility for shaped samples (e.g. Tensile Dog Bone). The micro design is suitable for expensive materials that are developed in small amounts from laboratory scale preparation.
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Extruders/Mixers
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Haake Rheocord 90
Contact: Joshua Otaigbe
Otaigbe Research Group
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Haake Rheocord 90
The Haake Rheocord 90 is a versatile computer controlled instrument that is capable of mixing, extruding and reading capillary rheometry data. It consists of two main components, the Computer Processing Unit (CPU) and the Measuring Drive Unit (MDU). The CPU controls and records all the information during the run of the experiment. The MDU measures the torque, temperatures, pressures and speeds that are then recorded by the CPU. This mixer, a Rheomix600/610, has the capability to mix at temperatures up to 450° C. It contains three heated zones controlled by the MDU. The advantages of using the mixer are a small sample size, more complete mixing, ease of assembly/disassembly, and ease of cleaning. Several different rotor types are available including Banbury, cam, roller, and sigma.
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Werner & Pfleiderer
Extruder/Mixer
Contact: Thames-Rawlins Research Group
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Werner & Pfleiderer Extruder/Mixer
Stainless steel. 160 liter (42.2 gal) total; 80 liter (21.1 gal) working capacity. Jacketed bowl. Jacket rated 8 bar (117.6 psi) @ 200 deg C (392 deg F). Bowl 20.3" L-R x 20.3" F-B x 23.4" DP. Sigma blades tangential. Front blade 28 rpm (16.5 hp/11 kw). Rear blade 21 rpm (16.5 hp/11 kw). 3.9" diameter screw discharge (15.5-65 rpm) with 22.5 hp (15 kw) all 3/50/380 volt operation. Vacuum rated. Complete with control panel, roller bearings, packing glands & counter balanced vacuum top cover.
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HAAKE Minilab
Contact: Joshua Otaigbe
Otaigbe Research Group
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HAAKE Minilab Micro Compounder
The HAAKE Minilab allows compounding and rheological characterization of expensive materials such as nano-composites, bio-polymers or pharmaceuticals is no problem . Continuous extrusion with a force feeder is possible with little sample quantities. The MiniLab micro rheology compounder combines real compounding and real rheological measurements with smallest amounts of materials. This is of interest in R&D applications for new polymer development, testing of expensive additives, i.e. pharmaceutical drugs and material studies. The MiniLab compounder can be equipped with conical co and counter rotating screws. Continuous viscosity measurements in the back flow channel up to 350° C.
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Prism® 16mm
Twin Screw Extruder
Contact: Jeffrey Wiggins
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Prism® 16mm Twin Screw Extruder
This extruder allows the user to prepare samples such as functionalized polymers and ionomer-compatibilized nanocomposites and polymer blends using twin screw extrusion. With this lab bench scale equipment, we are able to process small batches in short periods of time.
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Henschel Extruder/Mixer
Contact: Thames-Rawlins Research Group
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Henschel Extruder/Mixer
This is a mixing tool designed with a jacketed bowl, hinged lid, discharge and cover plate and a scraping tool for the walls and lid.
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Melt Flow Indexing
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Tinius Olsen MP 993
Contact: Jim Evans
Mississippi Polymer Institute
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Tinius Olsen MP 993 Controller Extrusion Plastometer
ASTM D 1238: Melt Flow Index
This machine measure the melt flow rate of molten plastics through a die using specified elevated temperatures and force.Â
Once the test specimens are extruded they are cutoff at a specified time and weighed to determine their melt flow rate. Measurement capabilities include melt density (g/cm3), shear stress (Pa), capture time (sec), shear rate (1/s), viscosity (Pa-s), flow rate (g/ 10 min), volume rate (cm3/ 10 min), and cut-off weight (g).
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Injection Molding
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Daca Instruments
MicroInjector
Contact: Joshua Otaigbe
Otaigbe Research Group
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Daca Instruments MicroInjector
DACA Instruments' MicroInjector is a small injection molding machine that quickly and efficiently produces parts using a maximum of 4 cc (0.14 oz) of material. The simple yet powerful design will process commodity thermoplastics, making the MicroInjector suitable for prototyping and small production runs. The "tall" configuration of the mold lends itself to producing standard tensile test bars and other long parts that must be injected from the end of the part.
Other applications include the production of mechanical and rheological test samples, color testing, and small experimental parts. The low volume of material required and the ease of operation coupled with the low tooling cost, make this instrument ideal for the research and development of new and exotic polymeric materials.
The temperatures of the mold and barrel are precisely controlled to allow processing of materials from room temperature to 400° C. The mold can be heated to 250° C or cooled below room temperature to process materials with low melting points.
The instrument consists of a heated block to support the conical, self clamping mold and a heated barrel. The barrel can be easily removed from the frame to be manually filled with powders or pellets.
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Contact: Jim Evans
Mississippi Polymer Institute
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Cincinnati Milacron CAMAC Vista Sentry VSX 85-ton Injection Molding Machine
Vista Sentry VSx Series Camac VSx Control 32 mm frame 40261 hours, Sprue heater, 12.2" clamp stroke, 27.95" maximum daylight,15.7/5.9 maximum/minimum mold height, 24" x 22.2" platen size (HxV), 15.95" x 14.17" distance between tie rods (HxV), 2.76" tie rod diameter, with a 4.72" ejector stroke.
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