DuPont is focusing development of its proprietary nanocomposite technology on a range of polymer matrices including polyester and polyamides. That was one of the announcements made by Nandan Rao, the technology director for performance materials during a press conference in Prague to discuss developments that will be shown at K 2007 in Düsseldorf this fall. At any given temperature, the modulus of nano-reinforced PET improves up to a maximum of 140° Celsius.What it means: use of the nano materials can reduce the amount of glass reinforcement and improve surface properties. Less glass reinforcement opens the door to reduced weight without sacrificing properties.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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