Capillary Rheometer
Parent Product
Test Application
Capillary Rheometer
Qualitest offers a full range of capillary rheometers that offer state-of-the-art features and will meet the demands of a 24-hour-a-day shop floor operation while maintaining the highest possible level of accuracy, repeatability, and sensitivity for R&D applications. Qualitest line of capillary rheometers is versatile and easy to use yet they offer the most sophisticated materials characterization, data analysis, and reporting capabilities. Our Capillary Rheometers are available with 10 or 25kN load cells, single or double-barrel configuration, and optional features to meet all the needs of QA and R&D in the industry.
Applications
Applications
Capillary Rheometer Overview:
Capillary Rheometer - LCR 7000 is designed to meet the demands of a 24-hour-a-day shop floor operation whilst maintaining the highest possible level of accuracy, repeatability and sensitivity. the LCR series rheometers are versatile and easy to use yet they offer the most sophisticated materials characterization, data analysis and reporting capabilities. They are equally useful for routine quality assurance testing and for research, development and troubleshooting applications. Although primarily designed for polymers and rubbers, these instruments are also useful with a wide range of materials such as foodstuffs, pharmaceuticals, ceramics, bitumens, and other extrudable materials.
Features/Advantages
Features
Capillary Rheometer Features:
Features of the LCR 7000
- All digital calibration
- Piston speed of 0.03–600 mm/min (20,000:1 range)
- Up to 45 shear stress or shear rate data points per test
- Unique algorithms for polymer melt stability
- Multiple barrel heating zones
- Accurate and uniform heating up to 430°C (500°C optional)
- Precision servo-drive motor and transducers
- Tight control of stress and rate mode tests
- Laser micrometer for accurate measurements of die swell (optional)
- 230V mains operation (other options available)
- CE approved
The Capillary Rheometer - LCR 7000 is fitted as standard with a 10kN load cell, the Capillary Rheometer - LCR7001 has a 10kN load cell and a barrel-mounted 1,400 bar (20,000 psi nom) melt pressure transducer, and the Capillary Rheometer - LCR7002 is a dual barrel version with dual 1,400 bar melt-pressure transducers. Many years of service are ensured through the use of tungsten carbide dies and a hardened and honed tool steel barrel.
LAB KARS advanced rheology software provides programming, control, analysis, and data storage capability. It is extremely useful to be able to monitor the load on the piston and the pressure just above the die entrance as some materials can bridge or "freeze" under pressure - e.g. filler particles can lock up, and some materials can stress crystallize. This can lead to a full load on the piston which is not transmitted to the material where the pressure transducer is located.
Features: Bagley and Rabinowitsch Corrections, Carreau, Modified Cross, Power Law and polynomial curve fits, Arrhenius Temperature fit, statistical error estimation, shear rate dependence, time at temperature relationship, critical shear stress, zero shear viscosity, intrinsic viscosity correlation
Theory/Method
Theory/Method
Technical Specifications
Technical Specifications
Capillary Rheometer Specifications |
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Model |
Description |
Options for Special Requirements A comprehensive list of optional features provides for the testing of a wide range of materials. These include: |
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LCR7000 |
LCR7000 capillary rheometer with load cell, with cleaning and operating tools, and one tungsten carbide orifice. |
Corrosion-resistant alloy barrel for testing corrosive materials such as PVC Tungsten carbide dies with a broad range of diameters and L./D ratios provide a wide range of measurement capability Laser micrometer for accurate measurements of die swell as the extrudate exits the die |
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LCR7001 |
LCR7001 capillary rheometer with load cell, barrel-mounted pressure transducer, and long barrel, includes cleaning and operating tools and three tungsten carbide orifices. |
Corrosion-resistant alloy barrel for testing corrosive materials such as PVC Tungsten carbide dies with a broad range of diameters and L./D ratios provide a wide range of measurement capability A melt pressure transducer mounted just above the die, eliminates frictional and barrel pressure effects Laser micrometer for accurate measurements of die swell as the extrudate exits the die |
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LCR7002 |
LCR7002 dual bore capillary rheometer with barrel-mounted pressure transducers, cleaning and operating tools, and four tungsten carbide dies |
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Capillary Rheometer - LCR 7000/LCR 7002 Specification |
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Barrel Length: |
Barrel Diameter: 9.55 mm ±0.005 mm (0.3760 in. ±0.0002 in.) (LCR 7002 features dual barrel diameters) |
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Barrel Capacity: |
approx 14ml |
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Drive System: |
DC servo motor |
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Piston Speed: |
0.03 to 600 mm/min |
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Dynamic Range: |
20,000:1 |
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Apparent Shear Rate with a 1mm Diameter Die: |
0.4 to 7,296 s-1 |
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Maximum Testing Force: |
10 kN standard, 15 kN optional |
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Force Measurement Method: |
LCR 7000: Load cell and barrel mounted pressure transducer supplied |
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LCR 7002: |
Two barrel-mounted pressure transducers supplied |
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Dies: |
Tungsten carbide capillary, many L/D ratios available |
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Die Swell Measurement: |
Optional Laser Micrometer |
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Temperature Range: |
430°C standard |
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Heating System: |
Multi-zone electric heater |
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Temperature Measurement: |
Platinum RTD 4-wire system |
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Temperature Control System: |
Adaptive PID temperature control algorithm 0.1°C resolution |
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Temperature Control Accuracy: |
±0.2°C at 13 mm |
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Temperature Distribution in Test Area: |
<1% variation |
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Power Supply: |
120/230 VAC 50/60 Hz ±10% |
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Power Consumption: |
750 W maximum, 200 W typical |
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Data Processing System: |
Personal computer based |
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System Software: |
LAB KARS (Laboratory Advanced Rheology Software) For Windows™ Microsoft Excel based. |
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Contact_Us
Please Contact Us for pricing, check availability, or ask for additional information about our Capillary Rheometer