Materials Know How

Materials

Tracing the History of Polymeric Materials: Silicones

More properly known as siloxanes, silicones are a class of materials where no carbon is present in the polymer backbone.  

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How Do You Like Your Acetal: Homopolymer or Copolymer?

Acetal materials have been a commercial option for more than 50 years.

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PBT and PET Polyester: The Difference Crystallinity Makes

To properly understand the differences in performance between PET and PBT we need to compare apples to apples—the semi-crystalline forms of each polymer.

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Tracing the History of Polymeric Materials: Polyphenylene Oxide Blends

PPO was a promising new high-performance thermoplastic, but it could be made useful only by mixing it with a humble commodity resin.

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Materials

The Strain Rate Effect

The rate of loading for a plastic material is a key component of how we perceive its performance. 

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best practices

Why (and What) You Need to Dry

Other than polyolefins, almost every other polymer exhibits some level of polarity and therefore can absorb a certain amount of moisture from the atmosphere. Here’s a look at some of these materials, and what needs to be done to dry them.

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Tracing the History of Polymeric Materials: The Commercialization of Acrylic

We covered the invention of acrylic in our last installment. Here, we discuss its commercial development.  

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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.

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