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Current issue

ELEKTRO 7/2019 was released on June 26th 2019. Its digital version will be available on July 26th 2019.

Topic: Cables, conductors and cable engineering, Tools, equipment and accessories for work with cables

Main Article
Asset management and diagnostic needs in Industry 4.0

SVĚTLO (Light) 4/2019 was released on July 29th 2019. Its digital version will be available on August 29th 2019.

Lighting installations
Foxtrot controls new location of barmans
Dynamic illumination of Guardian Angels’ chapel in Sušice

Accessories of lighting installations
Safety, austerity and comfort with KNX
Worldwide first LED switching source with KNX interface from MEAN WELL producer
KNX – the system with future
Schmachtl – connector installation gesis

3-D printing with cellulose

06.03.2017 | MIT News | news.mit.edu

For centuries, cellulose has formed the basis of the world's most abundantly printed-on material: paper. Now, thanks to new research at MIT, it may also become an abundant material to print with—potentially providing a renewable, biodegradable alternative to the polymers currently used in 3-D printing materials.

The MIT team chose to work with cellulose acetate—a material that is easily made from cellulose and is already widely produced and readily available. Essentially, the number of hydrogen bonds in this material has been reduced by the acetate groups. Cellulose acetate can be dissolved in acetone and extruded through a nozzle. As the acetone quickly evaporates, the cellulose acetate solidifies in place. A subsequent optional treatment replaces the acetate groups and increases the strength of the printed parts.

3-D printing with cellulose

To demonstrate the chemical versatility of the production process, researchers added an extra dimension to the innovation. By adding a small amount of antimicrobial dye to the cellulose acetate ink, they 3-D-printed a pair of surgical tweezers with antimicrobial functionality.

Read more at MIT News

Image Credit: MIT News

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