We Continue the Work of Those
Who Were the First.

  • Electrical Engineering
  • Light & Lighting
  • Power Engineering
  • Transportation
  • Automation
  • Communication
  • Smart Buildings
  • Industry
  • Innovation

Current issue

ELEKTRO 2/2018 was released on February 14th 2018. Its digital version will be available on March 12th 2018.

Topic: Electrical devices; Devices for smart grids; Internet of Things

Main Article
Power flow control in grid using power converters

SVĚTLO (Light) 1/2018 was released on February 5th 2018. Its digital version will be available on March 5th 2018.

Architectural and scenic lighting
Mexican light
Lighting design in a nutshell – Part 34
Lighting technology documentation – part 2 Schemes for scenic lighting

Luminaires and luminous apparatuses
NITECO LED luminaires – guarantied lifespan and warm white light not only for public lighting

Reducing tire waste by using completely degradable, synthetic rubber

23.08.2016 | American Chemical Society | www.acs.org

Scrap tires have been on environmentalists’ blacklist for decades. Scientists trying to rid us of this scourge have developed a new way to make synthetic rubber. And once this material is discarded, it can be easily degraded back to its chemical building blocks and reused in new tires and other products.

“The basic idea behind this project was to take a byproduct of the petrochemical industry and turn some of it into recyclable value-added chemicals for use in tires and other applications,” says Robert Tuba, Ph.D., one of the lead researchers on the project.

Completely recyclable tyres

Currently, synthetic-rubber makers use butadiene as their base material, but its cost has recently gone up, opening the door to competition. So scientists turned to cyclopentene as a potential alternative. Calculations showed that polymerizing cyclopentene and degrading it under relatively mild reaction conditions — and thus requiring minimal energy and expense — should be possible.

Using ruthenium, a transition-metal catalyst, the researchers polymerized cyclopentene at 0 degrees Celsius and decomposed the resulting material at 40 to 50 degrees. For industry, these are low temperatures that do not require a lot of energy. Additionally, in the lab, they could recover 100 percent of their starting material from several polypentenamer-based tire additives they developed.

Read more at American Chemical Society

Image Credit: Wikipedia

-jk-