Micronized silica for paint industry produced via fine grinding jet mill
In order to produce paint of the highest possible quality, the raw materials must be tightly controlled. This includes the mineral fillers that make up to 50% of the paint. Filler materials like calcium carbonate, talc, kaolin and silica largely govern paint properties like UV resistance, weatherability, abrasion resistance and sheen. Modern exterior latex paints typically use silica as a filler material, however it is particularly abrasive to paint mixing equipment and causes expensive wear damage. This study by Samayamutthirian Palaniandy, Khairun Azizi Mohd Azizli, Ee Xun Hong, Syed Fuad Saiyid Hashim and Hashim Hussin from Universiti Sains Malaysia looks at controlling particle size and shape of silica paint filler to enhance the properties of paint while minimising damage to mixing equipment.
The researchers found that fine grinding of silica in a jet mill with controlled operational parameters produced high quality silica for the paint industry with beneficial morphological attributes such as particle size distribution, particle shape and surface texture. The filler that they prepared was also advantageous in that sharp edges of the grains of silica were removed in the milling process. This results in a high quality filler that is far less damaging to mixing equipment which would in turn prolong the life of expensive equipment, reducing costs as well as the likelihood of contamination from wear particles.
Dr. Ian Birkby | EurekAlert!
Princeton-UPenn research team finds physics treasure hidden in a wallpaper pattern
20.07.2018 | Princeton University
Relax, just break it
20.07.2018 | DOE/Argonne National Laboratory
A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
20.07.2018 | Power and Electrical Engineering
20.07.2018 | Information Technology
20.07.2018 | Materials Sciences