MATERIALS KNOW HOW

Commodity Resins

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.
#polyolefins #bestpractices

Commodity Resins

MATERIALS: The Importance of Oxidative Stability in Polyolefins

Because oxidation is a process that causes materials to deteriorate over time, its effects or potential for those effects are not always apparent when new products are tested.
#bestpractices #polyolefins

Materials Know How

MATERIALS: Understanding Strain-Rate Sensitivity In Polymers

Material behavior is fundamentally determined by the equivalence of time and temperature. But that principle tends to be lost on processors and designers. Here’s some guidance.
#bestpractices #Elastomers

Materials Know How

MATERIALS: Thermoplastic Urethanes: Why Annealing Makes a Big Difference

Under the right conditions, annealing can drive TPU performance to a greater level than can be achieved at room temperature.
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Materials Know How

MATERIALS: The Problems with Single-Point Data

It’s time for material suppliers to take a fresh approach to providing data. Thankfully, things are starting to move in that direction. Part 12 of 12.

Engineering Resins

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.
#bestpractices #Elastomers

Materials Know How

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.
#bestpractices #Elastomers

Materials Know How

MATERIALS: The Problems with Single-Point Data: Part 9

Time—and not just temperature—governs the behavior of materials under load. Both must be considered when evaluating a polymer for an application.
#bestpractices #Elastomers

Materials Know How

MATERIALS: The Problems with Single-Point Data, Part 8

DTUL tests may have made sense in the 1940s and 1950s, before the advent of dynamic mechanical analysis. But designers and engineers today need better tools.
#bestpractices #Elastomers

Materials Know How

MATERIALS: The Problems with Single-Point Data, Part 7

The industry can choose between continuing to perform DTUL tests that provide single points that are part of a curve never seen, or perform the test that provides the entire curve.
#processingtips #bestpractices