2020 Volume 30 Issue 1 Pages 32-35
We briefly introduce the industrial use of neutrons in R&D of Kao Corporation. Structural analysis of cosmetics (nanometer-size emulsion; NE) and skin (stratum corneum; SC), and recently evaluation of non-soluble neutron absorbers was carried out. In the NE research, the mechanism of shear thickening behavior by mixing NE and polymer was investigated using the Rheo-SANS method. Complementary use of SANS and synchrotron radiation SAXS were effective in analyzing changes in the human SC structure due to immersion in surfactant solutions. The cooperation between the small neutron source (KUANS) and the large neutron source (J-PARC MLF) advanced smoothly from the neutron transmission measurement to the adhesion evaluation of the neutron absorbers. The neutron science community has been very helpful for our research and will become increasingly important for the future industrial use.
