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CFT-EX Series

Efficient Testing with a Reliable Evaluation Method

High test force precision, provided by a weight-based constant test force loading system, enables high measurement reproducibility andtest efficiency. In addition to increased operability to improve testing efficiency, accurate temperature measurement and stable control areprovided through a reliable temperature control system.

Evaluation of Softening and Flow Beginning TemperatureUsing Constant Heating Rate Testing

Testing methods include a constant temperature method a constant heating rate method. The constant heating ratemethod permits measurement of resin softening temperature and flow beginning temperature to determine shearrate and viscosity at each temperature and cannot be conducted using other capillary type rheometers.

Viscosity Evaluation of Thermosetting Resin

Weight-based constant test force extrusion is used to measure the amount of piston movement (movementspeed), which is used to determine viscosity. Highly reproducible measurements of fluidity of thermosettingresins, which cure rapidly due to heating, can be determined due to the highly precise temperature control andthe range of test forces available.

Improved Efficiency

Enhanced labor-savings have been implemented throughout the entire testing process, from setting of the sample and starting the testto output of the test results. All of this greatly increases the efficiency of production procession, quality control, and research anddevelopment testing.

  • Model: CFT-500EX
  • Pressurizing Method: Constant test force extrusion using weights
  • Test Method: Constant temperature method and constant heating rate method
  • Measuring Range: 1 × 101 to 1 × 106 Pa·s
  • Heating Method: Electric, 500 W
  • Sample Size: Max. 1.5 cm3

Achievements in Many Industries

  • Thermoplastic Resins

Measurement of the melt viscosity of resins facilitates the selection ofmeasurement conditions, such as temperature, pressure and flow rateduring molding. The CFT-EX series, which supports measurement at shearstresses similar to those used under actual molding conditions, providesvery useful data

  • Thermosetting Resins and Adhesives

Measurement of the curing rate of thermosetting resins is difficult using typical physical methods. The CFT-EX series, on the other hand, permits measurement of the curing time from aflow curve.

  • Copying Machine Toners

Melting temperature and viscosity of toner are key factors toobtaining clear print with copying machines. The CFT-EXseries permits simple and efficient measurement of suchtemperature and viscosity.

  • Composite Materials

Paying close attention to viscosity is critical when conducting pressand injection molding of composite materials such as GFRP and CFRP,consisting of reinforced fibers mixed with thermoplastic andthermosetting resins, respectively. The viscosity can be evaluatedunder various pressure and temperature conditions for injectionmolding, as well as the matrix (base material) and filler content.

  • Rubber Materials

Injection molding machines aretypically used in the molding ofrubber. Since the mechanism of theCFT-EX series is similar to that used ininjection molding machines, veryuseful data can be obtained, therebypermitting, for example, managementof viscosity in unvulcanized rubber.

  • Ceramic Materials

In the molding of ceramics, resinadditives referred to as binders aretypically added to the mold to improvefluidity. This fluidity can be measuredto determine the optimal proportionof binder to be used.

  • Other Applications

Foods: Evaluation of compositions of chewing gum, butter, margarine, bread, candy, chocolate, etc. for determining optimal consistencies in the mouthPaints and Inks: Evaluation of writing characteristics and fluidity of ink used in ballpoint pens and fountain pens, etc.Fibers: Selection of melt spinning production conditions