Polytrope(reg) thermoplastic elastomers (TPOs) are typically blends of polypropylene, EPDM rubber, fillers, and additives yielding a wide range of properties. Most notable for their low specific gravity and low-cost raw materials supply base, thermoplastic elastomers provide a cost/performance ratio for automotive applications. TPOs can be compounded to possess a comprehensive range of physical properties from soft and rubber-like to hard and rigid.
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The amount of plastic clogging the ocean continues to grow. Some startling, not-so-good news has come out recently about the roles plastic is playing in the ocean, as well as more heartening news about efforts to collect and reuse it.
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
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