A new type of polymers can be produced in a more environmentally friendly way, using wood instead of oil as a raw material, according to research at the Royal Institute of Technology (KTH) in Stockholm, Sweden. The next step is to replace the wood with the process water from the pulp industry. This means a solution to an environmental problem and access to a cheap renewable raw material.
The substances in question, hemicellulose-based hydrogels, are a good example of how oil can be replaced by other raw materials in the production of polymers, an ever more important step in efforts to create a sustainable society. The new possibilities of producing hydrogels and other polymers from wood and process water from the pulp industry have whetted the interest of the forestry industry in pursuing this research further, according to Margaretha Söderqvist Lindblad, who has presented a doctoral dissertation based on this research. Since hemicellulose is soluble both in water and certain mild organic solvents, production can furthermore be more environmentally friendly than parts of the corresponding processes using oil as raw material.
“Older techniques for isolating hemicellulose yield water-insoluble hemicellulose, which is considerably more difficult to alter chemically. So on top of the fact that the raw material is to be preferred in our endeavor to create a sustainable society, the ensuing reactions are also easy on the environment,” says Margareth Söderqvist Lindblad. This is entirely in line with the efforts to find environmentally adapted solutions that permeate all research at the new interdisciplinary Department of Fiber and Polymer Technology at KTH. Professor Ann-Christine Albertsson, who directed the dissertation, began work on developing polymers from renewable raw materials as early as the mid 1980s.
Magnus Myrén | alfa
Move over, Superman! NIST method sees through concrete to detect early-stage corrosion
27.04.2017 | National Institute of Standards and Technology (NIST)
Control of molecular motion by metal-plated 3-D printed plastic pieces
27.04.2017 | Ecole Polytechnique Fédérale de Lausanne
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...
28.04.2017 | Event News
20.04.2017 | Event News
18.04.2017 | Event News
28.04.2017 | Medical Engineering
28.04.2017 | Earth Sciences
28.04.2017 | Life Sciences