Exploring the: Testing & Quality Control Zone



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MATERIALS: Melt Flow Rate Testing—Part 10
Two areas where the melt flow rate test it is not useful are related to processing.
Columns Published: 4/23/2014
Melt Flow Rate Testing—Part 9
Understanding the value of melt-volume rate.
Columns Published: 3/21/2014
Melt Flow Rate Testing–Part 8
Here are the steps to take in cases where the MFR is not provided by the polymer supplier.
Columns Published: 2/25/2014
Melt Flow Rate Testing—Part 7
Here is why the melt flow test is not universal.
Columns Published: 1/23/2014
Melt Flow Rate Testing—Part 5
There are two points in the manufacturing supply chain where a determination of average molecular weight (MW) is important. The first is when the material is first received by the molder. The second is after molding.
Columns Published: 11/26/2013
Melt Flow Rate Testing—Part 4
Few molders perform the test in-house. Of those that do, most don't understand why they are doing it or what they are measuring.
Columns Published: 10/24/2013
Melt Flow Rate Testing—Part 3
There is a well-established relationship between something called the weight-average molecular weight of a polymer and a parameter known as the zero-shear viscosity.
Columns Published: 9/23/2013

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