Effects of the Addition Amount of Silica Aerogels on Mechanical Properties and Microstructure of Insulating Materials
Insulating materials were prepared by microsilica, silica aerogels and quartz fibers as raw materials, water glass as binder, and molded by the semi-dry method. In this paper, the effects of the addtion amount of silica aerogels on mechanical properties and microstructure of insulating materials were studied. X-ray diffraction (XRD) was used to characterize the phase composition and scanning electron microscope (SEM) was used to characterize the microstructure of the materials. The results show that when the silica aerogels content was at 40%, the material had the best properties in present study of true porosity of 45.9%, flexural strength of 5.0MPa and compressive strength of 37.9MPa, respectively.
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
L. Ma et al., "Effects of the Addition Amount of Silica Aerogels on Mechanical Properties and Microstructure of Insulating Materials", Advanced Materials Research, Vols. 374-377, pp. 803-806, 2012