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author:

Sun, Xiaoxiang (Sun, Xiaoxiang.) [1] | Zhao, Jianxi (Zhao, Jianxi.) [2]

Indexed by:

EI

Abstract:

The reorganization of fumed silica gel formed in sulphuric acid medium after being broken has been studied using rheological measurements including thixotropy, gelling time, and gel strength determination according to the falling rod method. The original gel formed by fumed silica particles was also studied for comparison. The results showed that the segments yielded after the original gel was broken can reorganize into a new gel although its ability was weaker than that of fresh particles. The dispersed size of silica particles influenced both the formation of the original gel and the reorganization behavior. The smaller silica particles favored a prolonged gelling time but yielded a gel with relatively low strength. Comparatively, the tendency to reorganize was weaker than in the original gel formation. The standing temperature during the fresh gel formation showed less of an effect on the reorganization process. © 2017, Springer Science+Business Media Dordrecht.

Keyword:

Gelation Silica Silica gel

Community:

  • [ 1 ] [Sun, Xiaoxiang]Institute of Colloid and Interface Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou; Fujian; 350108, China
  • [ 2 ] [Zhao, Jianxi]Institute of Colloid and Interface Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou; Fujian; 350108, China

Reprint 's Address:

  • [zhao, jianxi]institute of colloid and interface chemistry, college of chemistry and chemical engineering, fuzhou university, fuzhou; fujian; 350108, china

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Source :

Silicon

ISSN: 1876-990X

Year: 2017

Issue: 6

Volume: 9

Page: 879-884

1 . 2 4 6

JCR@2017

2 . 8 0 0

JCR@2023

ESI HC Threshold:306

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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