Category: Transient Plane Source
Author(s): Arild Gustavsen, Bjorn Petter Jelle, Linn Ingunn C. Sandberg, Tao Gao
Keywords: Coatings, diameter, hollow silica nanosphere, hollow silica nanosphere (HSNSs), HSNSs, monodispersed polystyrene spheres, photon scattering, polystyrene sphere, polyvinylpyrrolidone, Polyvinylpyrrolidone (PVP), PVP, silica coating process, sphere size, Thermal Conductivity, thermal insulation
Abstract: In this paper, researchers synthesized monodispersed polystyrene spheres (PS), of a desired size. Generally, PS have a typical diameter ranging from 180 nm to 900 nm. However, the researchers in this study were able to reduce the sphere size, by increasing the polyvinylpyrolidone/styrene weight ratio. The PS were used as models, in order to fabricate hollow silica nanospheres (HSNSs), for thermal insulation applications. With modifications to this silica coating process, HSNSs experienced different surface roughness, however they all showed a thermal conductivity of about 0.02 W/mK.
Reference: Advances in Materials Science and Engineering, (2013)