A guide to performing an accurate melt flow test

A guide to performing an accurate melt flow test

The melt flow rate of a polymer is the measure of how easily the material flows in a melted state. It is usually measured by taking a sample of the polymer and heating it until it melts. The molten polymer is then forced through a small orifice under specific conditions of weight, temperature, and time. The resulting flow rate is reported as the weight of polymer that flows through the orifice in a certain period of time. For instance, a higher melt flow rate generally indicates that the material will be easier to process, making it more suitable for applications where fast cycle times are required. Thus, we at Presto have come up with one of the essential lab testing instruments known as the melt flow index tester deluxe model.

 
With the use of the Presto melt flow index tester, it will be easy for preform manufacturers to evaluate the flow properties of molten plastics and resins. This test is conducted under prescribed conditions of temperature, load, and piston position in a cylindrical cavity inside the heated metallic barrel. Here in this blog, we are going to provide you with information about the guide to performing melt flow tests with the help of Presto melt flow index tester for granules. So, let us get started!
 

Evaluate the melt flow index of plastics and polymers with Presto melt flow index tester

The Presto melt flow index tester is an instrument that is used to carry out the melt flow test. This device can be used to evaluate the various properties of materials like resins and molten plastics. This tester can be used to measure the melt flow rate of different materials like polymers and plastics. The advantage of using this instrument is that it can provide accurate results within a short time frame. The other benefits of using this tester include its ability to analyze the quality of plastics so as to make sure that the right materials will be delivered to your customers. You can also read about the importance of a melt flow index tester and why you should use it.
 
In order to determine the rate of melt flow of resins, it is necessary to consider its viscosity. If the viscosity is high, then the flow rate will be correspondingly low. Thus, in order to increase the flow rate, it is necessary to decrease the viscosity of the resin. However, if the melting rate of the element is low, then the viscosity will correspondingly be high. As a result, it is necessary to balance these two factors in order to achieve an optimal flow rate. By taking into account both the resin viscosity and melting rate, it is possible to ensure that the resulting flow rate is high enough to be effective.
 
Below we have listed the features and technical specifications of the Presto melt flow index tester deluxe model.
 

Features of Presto melt flow index tester (deluxe model)

The Melt Flow Index (MFI) is an important parameter that is used to determine the flow properties of a polymer at the melting point. The MFI is defined as the mass of polymer that flows under a specified weight at a specified temperature. The MFI is a measure of the viscosity of the polymer and is inversely related to the melt viscosity. Below we have listed the features of the Presto melt flow index tester.
 
  • Microprocessor-based PID controller.
  • Automatic sample cutting.
  • Digital Preset Timer for accuracy and repeatability.
  • Die Steel barrel for uniform and the consistent heating of barrel/test cylinder.
  • Corrosion-resistant finish.

Technical Specifications of Presto melt flow index tester

  • Display: LED (Digital)
  • Temperature Range: Ambient to 400°C.
  • Accuracy: ± 1°C.
  • Resolution: 0.1°C.
  • Timer: Digital Preset up to 999 seconds (Changeable to Hrs:min: sec)
  • Dimensions of piston head: 9.47mm diameter
  • Diameter of heater tube cavity: 9.55mm ± 0.005mm
  • Dimensions of Die: 2.095mm ± 0.005mm
  • Weights: 1.2 kg; 2.16 kg; 3.8 kg & 5 kg
  • Sensor Type: PT 100
  • Temperature Controller: PID
  • Sample Type: Resins or Plastics
  • Sample Cutting: Automatic motorized
  • Power Supply: Single Phase, 220-240 AC, 50 Hz.
  • Paint: Powder Coated Grey and Blue Combination along with zinc/bright chrome plating.
  • Optional Accessory: Lab Weighing Balance 200gms
  • Standard Accessory: Orifice, Piston, Spoon, Plumb Line, Funnel, Material charger, Mirror, Tweezers, Barrel cleaner, Orifice cleaner, Sample cutter, and Accessory stand
With these features and technical specifications of the melt flow index tester, it will be easy for you to determine the melt flow index of polymers with ease. You can easily perform the quality check of materials with the help of the Presto melt flow index tester. Now, let us focus on the steps to perform an accurate melt flow test with the help of the Presto melt flow index tester.
 

Steps to perform accurate melt flow index test with Presto Melt flow Index tester

The Presto Melt Flow Index Tester is a top-of-the-line lab testing instrument that is used to measure the melt flow rate of thermoplastic polymers. The results of the tests conducted using this device are trusted by experts all over the world, due to the fact that the device meets or exceeds international standards.
 
In particular, the Presto Melt Flow Index Tester complies with ASTM D 1238-1992, IS 2267-1972, IS 2530-1963, and IS 10810-1984 test standards. This ensures that the results of the tests are accurate and reliable. Furthermore, the device is easy to use and provides consistent results. As a result, the Presto melt flow index tester for thermoplastics is the preferred choice of experts worldwide.
 
Below we have created a useful guide to test the melt flow properties of materials with ease.
 
  • When you buy Presto melt flow index then you need to level the machine accurately, before beginning the melt flow test for thermoplastics. Once you level it accurately and then start the machine by plugging the main socket into a 3 pin 15 amp socket.
  • Set the values and test duration timing on the digital timer. Set the configuration lock to zero.
  • The setting of input for RTD PT-100 sensor.
  • Turn to auto-tune ON/OFF.
In this way, you can easily test the melt flow properties of materials with ease. You can also maintain the Presto melt flow index tester easily. If you want to know more about melt flow index tester price then you can give us a call at +91 9210903903 or email us at info@prestogroup.com. We will instantly assist you regarding your queries related to this product.

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