Materials

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Published: 7/25/2017

Materials: Cycle Time: Science vs. Rules of Thumb—Part 2
Understanding cooling—how a given material develops modulus as it solidifies—requires access to data that provides some insight into the relationship between modulus and temperature. Dynamic mechanical analysis is a helpful tool.

Published: 5/30/2017

Cycle Time: Science vs. Rules of Thumb, Part 1
What temperature must the polymer reach so the part can be ejected from the mold? Here, more than for any other variable, ‘rules of thumb’ unfortunately prevail.

Published: 4/25/2017

The Need for Generalists: Part 4
Solving problems generally requires distinguishing good samples from bad ones. But that can become clumsy when one person runs the test while another analyzes the data.

Published: 3/24/2017

The Need for Generalists: Part 3
In failure analysis, there is a tendency to gravitate to a few common test protocols. But this approach can result in a mismatch of techniques to the problem.

Published: 1/26/2017

The Need for Generalists, Part 2
Problem-solving requires a team that combines people having academic credentials with others who have hands-on experience.

Published: 12/27/2016

The Need for Generalists: Part 1
Even companies with seemingly unlimited resources can have problems identifying root causes of problems. Maybe they have too many specialists and not enough generalists.

Published: 11/23/2016

Finding Root Causes of a Material Problem
Tools and methods for determining oxidative stability can be useful, but even more useful if constructed to yield the information you really need.

Published: 10/18/2016

The Importance of Oxidative Stability in Polyolefins, Part 3
Tools and methods for determining oxidative stability can be useful, but even more useful if constructed to yield the information you really need.

Published: 9/27/2016

The Importance of Oxidative Stability In Polyolefins, Part 2
The DSC test can do a reasonably good job of capturing the comparative behavior of materials that use similar antioxidant chemistries.

Published: 8/26/2016

Do You Do Color Right?
This supplement is here to help.