The Structure and Properties of Sulfo-Butylated Celluluse Ether (SBC) Based Water-Reducing Agents

Abstract:

Abandoned cellulose was treated with acid to prepare Micro-Crystalline Cellulose (MCC) holding affirmative polymerization, which was then treated with 1,4–butanesultone (BS) to synthesize water-soluble Sulfo-Butylated Cellulose ether (SBC). The structure of the SBC was characterized by means of FT-IR, ¹H NMR, SEM, and XRD, and its relationship to function was investigated based on the polymerization of MCC and Degree of Substitution (DS). SEM images of hardened cement were also studied. The results indicated that when the polymerization of the MCC was smaller than 96 and the DS greater than 0.375, SBC exhibited water-reduction. When sulfonated cellulose was mixed into the cement paste, its retarding effect slowed hydration early in the aging process, so that later the structure of hardened cement paste became more uniform and compact than that of control.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 433-440
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.433
• Online since: May 2014
• Authors: Halidan Maimaiti*, Xuekelaiti Aerken
• Keywords: Retarding Effect, Sulfo-Butylated Cellulose Ether, Water-Reducing Agent, Water-Reduction

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