Exploring the: Engineering Thermoplastics Zone
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- 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.
Columns Published: 3/25/2013
- 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.
Columns Published: 2/26/2013
- Dimensional Stability After Molding—Part 2
- After molding, acetal parts can continue to shrink at room temperature and even in the cold.
Columns Published: 1/28/2013
- Dimensional Stability After Molding: Part 1
- The degree to which molded parts shrink as they cool is largely dependent upon the composition of the material being processed.
Columns Published: 12/28/2012
- 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.
Columns Published: 9/29/2012
- How Do You Like Your Acetal: Homopolymer or Copolymer?
- Acetal materials have been a commercial option for more than 50 years.
Columns Published: 8/27/2012
- When It Comes to Nylon, Don’t Do the Math
- Chemistry is seldom as simple as it looks. Polymer chemistry takes the complexity up a notch. Nylon chemistry is about much more than doing the math.
Columns Published: 6/26/2012
