Rheology of Silica Sols/Gels Obtained by a Y-Shaped Reactor with a Dilute Method

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Aya Kaide¹  Takashi Saeki¹ 

[1] Department of Environmental Science and Engineering, Graduate School of Science and Engineering, Yamaguchi University

关键词: Silica Gel;    Sol–Gel Transition;    Dilute;    Gelling Time;    Rheology;   

DOI  :  10.1252/jcej.13we111

来源: Maruzen Company Ltd

【 摘 要 】

References(15)Silica sols can be continuously produced by the neutralization of sodium silicate with sulfuric acid using a Y-shaped reactor. The viscosity of the produced silica sols gradually increases, and gels are finally formed through the sol–gel transition. The gelation properties are significantly affected by the preparation conditions. Here we examined the effect of the dilution of silica sols by water in terms of the gelation properties of the silica sols and gels, using both dynamic viscoelasticity measurement and the creep test. Information that is needed to control the gelation properties of silica sols and gels for making silica materials into a product is also presented.

【 授权许可】

Unknown