Major gains with centrifugal multispinning
Rotating spinneret is sectioned into three sub-disks.
21st May 2021
A new nanofibre production technique developed at the Korea Advanced Institute of Science and Technology (KAIST) is said to achieve up to 300 times the output of the conventional electrospinning process.
Electrospinning has been the common process used to prepare fine and uniform polymer nanofibres but has several drawbacks, such as the requirement of a high-voltage electrical field and an electrically conductive target.
Existing centrifugal spinning technology employs centrifugal force instead of high voltage to produce polymer nanofibres and is being proposed as a safer and more cost-effective alternative to electrospinning. Achieving scale is another advantage, since the technology only requires a rotating spinneret and a collector.
2021 0520 New NUS technology completes vital class of industrial reactions five times faster
The NUS research team led by Assoc Prof Yan Ning (middle) used an electrostation machine to achieve the desired oscillation of electric potentials in order to speed up hydrogenation in a laboratory-scale reactor. With him are two members of the research team: doctoral student Mr Lim Chia Wei (left), and Research Fellow Dr Max Hulsey (right).
Everything from the production of fertilisers and plastics, to liquid fuels and pharmaceuticals, require an important chemical reaction known as hydrogenation. This is a process involving the addition of hydrogen to unsaturated chemical bonds. Enhancing the rate of hydrogenation can lead to higher yields for industries and lower environmental impacts.
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