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

Aya Kaide | Zendy; Takashi Saeki | Zendy

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

Author(s) -

Aya Kaide,

Takashi Saeki

Publication year - 2014

Publication title -

journal of chemical engineering of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.206

H-Index - 49

eISSN - 1881-1299

pISSN - 0021-9592

DOI - 10.1252/jcej.13we111

Subject(s) - rheology , viscoelasticity , sodium silicate , viscosity , chemical engineering , materials science , precipitated silica , sulfuric acid , dilution , silicate , hydrophobic silica , creep , composite material , thermodynamics , natural rubber , physics , engineering , metallurgy

Silica sols can be continuously produced by the neutralization of sodium silicate with sulfuric acid using a Y-shaped reactor. The vi scosity of the produced silica sols gradually increases, and gels are finally formed th rough the sol–gel transition. The gelation properties are significantly affected by t he 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 c ontrol the gelation properties of silica sols and gels for making silica materials into a pr oduct is also presented.

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