Materials | product update 3D PRINTING
Stratasys targets living hinges and snap-fits
The latest addition to the Stratasys range of 3D printing materials is Endur, designed to simulate the properties of PP and to allow production of flexible features such as living
hinges and snap-fits. Suitable for use with the
company’s Objet EdenV, Objet Connex, Objet500 Connex3 and Objet 30Pro printers, the Endur material offers good
impact resistance, high elongation at break and a heat-deflection temperature up to 54°C at 0.45MPa. It is said to be suitable for a range of form, fit and assembly applications, including printing of living hinges and snap-fits. “Beta field trials showed high user satisfaction with Endur for models and prototypes of polypropylene parts,” says Stratasys product director for materi- als and applications, Fred Fischer. ❙
www.stratasys.com
POLYPROPYLENE Norner stretches the life of PP
Norwegian research institute Norner has developed a proprietary new technology that extends service life of PP in aggressive media. The new formulations are intended for the transporta-
tion of hot water, warm hydrocarbons or alkaline liquids in PP-lined piping systems. The company claims good results have been achieved in accelerated testing indicating service lifetimes of
more than 25 years at 70˚C. Norner senior researcher Harry Øysæd says the PP technology is currently in the implementation phase in a chemical plant application. ❙
www.norner.no
in brief
❙ Grafe has developed a range of carbon black filled electrically conductive polymers that meet Category 1 - 2 requirements for PAH (polyaromatic hydrocarbon) content laid down by GS (Geprüfte Sicherseit). PAHs are produced by incomplete combustion during produc- tion of the carbon black and are classified as harmful to human health, says the company. GS Category 2 requires a PAH content of less than 10 mg/kg.
www.grafe.com
❙ Lehvoss North America, a subsidiary of Germany’s Lehmann & Voss, has introduced Luvocom 8000, a new series of PEEK com- pounds intended for high wear applications. The new grade does not contain PTFE, which generally decreases the mechanical performance of the compound, while exceeding the tribological performance of competing products, the company claims. Wear rates are said to be up to three times lower than industry-standard PTFE-lubricated PEEK.
www.lehvoss.com
ACETAL Low permeation POM for fuel applications
Celanese has developed a new low permeation Hostaform grade of POM for production of injection moulded parts for use in fuel tanks that must comply with the latest SORE (small off-road engine) regulation in the US. Traditionally, tanks for
SORE applications have been
www.injectionworld.com
moulded in HDPE but this cannot meet the new US EPA and CARB regulations, the company says. The Hostaform S9364LPI grade, which is described as a low permea- tion, toughened hybrid POM, is claimed to be able to meet the requirements in a single-layer construction.
The resin is said to provide
high strength and impact resistance down to -40˚C and is suitable for use with conventional and high ethanol content fuels. Users also benefit from a claimed 25% reduction in manufac- turing time. ❙
www.celanese.com
❙ US PLA biopolymer maker Natureworks worked with Irish start-up 3Dom Filament to develop a range of filaments for use in 3D printing systems. The new PLA filaments carry the Natureworks Ingeo brand and include PLA blends in a range of diameters and colours.
www.natureworksllc.com www.3domfilaments.com
April 2014 | INJECTION WORLD 67
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