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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.
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.
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.
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.
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.
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.
RECYCLING: The Importance of Quality-Assurance Testing for Recycled Materials
Consider investing in these tools to ensure your material makes the grade.
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.
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.
MATERIALS: The Problems with Single-Point Data--Part 6
Data sheets can be limited in the information they provide on how the material performs at elevated temperatures.