The collar of the new Salomon "Ghost" freerider alpine
ski-boot is one of the first applications for an elastomer based in part (27
percent) on corn-based plastic.
Ski-boot collars help provide a secure fit of the boot to
the skier and protect the lower leg. They must also be flexible enough to
ensure a reliable transfer of movement from the leg to the ski.
"We already knew Hytrel (elastomer) could offer the required
performance for the collar of our new âGhost' freerider boots as an alternative
to polyurethane," says Pascal Pallatin, alpine boot and advanced research
project manager at Salomon of Annecy, France.
"The fact that we could now access a grade of the high performance
material with a significant renewable content is an additional selling point
for our boots."
The new DuPont grade of thermoplastic elastomer, based on
corn sugar or other plants, is designated Hytrel RS and is said to provide all
the performance characteristics of traditional Hytrel materials. RS indicates
The properties of Hytrel RS that are of particular relevance
to this ski-boot collar application include: excellent flex fatigue, flexibility
at temperatures as low as -20C and high impact resistance. The collar is
injection molded as a single piece and colored white with masterbatch.
In an age of globalization and rapid changes through scientific progress, two of our societies' (and economies') main concerns are to satisfy the needs and wishes of the individual and to save precious resources. Cloud computing caters to both of these.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.