Imagine throwing out your old shrimp shells after dinner--in a bag made of shrimp shells. In his doctoral dissertation, Mikael Gällstedt at the Royal Institute of Technology in Sweden describes how we can make environmentally friendly packing out of garbage.
The number of grocery packages is constantly growing. Most packages are made of plastic, which both adds to the mountains of waste and uses oil reserves. There are good reasons to look for smart, environmentally friendly alternatives.
Mikael Gällstedt has studied three organic materials and examined how they could be adapted to function as packaging material:
Mikael has managed to make the materials impermeable to oxygen but thus far not to all liquids. In that case, the structure of the materials must be able to withstand higher pressure, but he believes he will soon be able to solve this problem.
“With a little more research, these three materials should be perfectly suitable for various types of packaging. It should be possible to make bags for chips, juice tetrapaks, bags for powders and sauces. Many packages today use some form of aluminum layer.”
Mikael has carried part of his research at Korea University, and he says that there was a great deal of interest among Asians.
“In several countries people live very close to each other and have major problems with waste disposal. These biological materials can be composted or burned for energy production, both environmentally friendly methods. We make use of garbage that otherwise would have simply been thrown away. It should even be possible to make them edible.”
The title of the dissertation is Films and composites based on chitosan, wheat gluten or whey proteins--Their packaging related mechanical and barrier properties.
Mikael Gällstedt is a doctoral student at the Royal Institute of Technology, Fiber and Polymer Technology. His research is commissioned by STFI-Packforsk, a center for research and development of fibers, packaging, and printing, a research institute funded by the industry, Vinnova, IRECO, and the EU.
Jacob Seth-Fransson | alfa
CeGlaFlex project: wafer-thin, unbreakable and flexible ceramic and glass
25.04.2017 | Fraunhofer-Institut für Lasertechnik ILT
Additive manufacturing, from macro to nano
11.04.2017 | Laser Zentrum Hannover e.V.
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
26.04.2017 | Materials Sciences
26.04.2017 | Agricultural and Forestry Science
26.04.2017 | Physics and Astronomy