Engineering Thermoplastics

Exploring the: Engineering Thermoplastics Zone

14 Results for: Columns

Sort by:
Published: 3/29/2018

A Processor’s Most Important Job, Part 4: Mold Temperature
Engineering polymers require higher mold temperatures to achieve their ideal structure. The temptation to turn down the mold temperatures can hurt part performance.

Published: 8/24/2016

Are You Ready for K 2016?
We’ve got you covered with five feature stories and an entire new-products section devoted to the October show in Dusseldorf.

Published: 3/24/2016

MATERIALS:The Problems with Single-Point Data
This real-world scenario explains why molders and their customers need to ‘think in terms of graphs’ and gather as much data as possible before selecting a material for an application. Part 11.

Published: 2/22/2016

MATERIALS: The Problems with Single-Point Data: Part 10
You can predict creep performance of a material over time at a particular temperature by examining how its modulus changes over a range of temperatures.

Published: 12/29/2013

Melt Flow Rate Testing—Part 6
Once degradation has been established, the discussion inevitably turns to how it happened. It might be expected that the answer to this question is widely known. Not so. The good news is that the influences that cause polymer degradation during proc...

Published: 6/24/2013

Melt Flow Rate Testing–Part 1
Though often criticized, MFR is a very good gauge of the relative average molecular weight of the polymer. Since molecular weight (MW) is the driving force behind performance in polymers, it turns out to be a very useful number.

Published: 5/28/2013

What's Different About Molding Engineering Plastics
If you try to run them like commodity materials such as PP you'll have problems.

Published: 3/25/2013

Dimensional Stability After Molding: Part 4
In the first three parts of this series we focused on those influences that cause molded parts to get smaller. But there are environmental factors that also cause parts to increase in size over time.

Published: 2/26/2013

Dimensional Stability after Molding—Part 3
Any process that involves melting and re-solidifying a polymer involves a compromise between achieving the perfect structure and producing a part that can be sold at a price that the market is willing to pay.

Published: 1/28/2013

Dimensional Stability After Molding—Part 2
After molding, acetal parts can continue to shrink at room temperature and even in the cold.