# EFFECT OF SULFATE ION ON THE PERFORMANCE OF POLYCARBOXYLATE COMB-LIKE COPOLYMERS IN CEMENT SUSPENSIONS

> Title: EFFECT OF SULFATE ION ON THE PERFORMANCE OF POLYCARBOXYLATE COMB-LIKE COPOLYMERS IN CEMENT SUSPENSIONS Page Range: p.527-532 Author(s): Qianping Ran; Min Qiao; Yinhui Yu; Jiaping Liu File size: Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers and Polymer...

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Published: 2014-06-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: EFFECT OF SULFATE ION ON THE PERFORMANCE OF POLYCARBOXYLATE COMB-LIKE COPOLYMERS IN CEMENT SUSPENSIONS**
 Page Range: p.527-532
 Author(s): Qianping Ran; Min Qiao; Yinhui Yu; Jiaping Liu
 File size:
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc22-6&JournalID=102196&JIP=) (subscribers only)
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 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 22
 Issue No: No.6

**Abstract**
 Polycarboxylate comb-like copolymer (PCE) is a kind of polyelectrolyte, which is easily affected by the ions in cement suspensions. In this work, the effects of sulphate ion on the surface charge, adsorption and dispersion in cement system with PCE as dispersant were investigated in detail. The addition of sulphate ion apparently decreased the positive charge on the surface of cement particles. The sulphate ion reduced the adsorption and dispersibility of PCE in cement suspensions, which was due to the competition between sulphate ions and PCE in the adsorption behaviour on the surface of cement particles. 11 Refs.

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