The Properties and Morphology of Poly (Butadiene-Graft-Styrene) Latex Modified Mortars

Abstract:

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Polybutadiene-graft-polystyrene (PB-g-PS) latex were prepared via emulsion graft copolymerization method. The weight ratios of polybutadiene to styrene ranged from 70/30, 50/50 to 30/70, then the PB-g-PS latex was used to modify cement mortar. This study examines the effects of core-shell ratios(c/s) on the typical properties and morphology of PB-g-PS latex modified mortars. The PB-g-PS latex modified cement mortar were prepared at different polymer-cement ratios(p/c), and tested to obtain the water-cement ratios(w/c), fluidity, water retention rate, flexural and compressive strengths. SEM was used to investigate the microstructure of polymer- modified mortars(PMMs). On the basis of the test results, effect of the c/s and p/c on the typical properties and morphology of PMMs were discussed. It is concluded that PB-g-PS core-shell latex can be incorporated into cement as modifier.

Info:

Periodical:

Edited by:

Zhixiang Hou

Pages:

1286-1289

DOI:

10.4028/www.scientific.net/AMM.48-49.1286

Citation:

W. J. Zhao and H. X. Zhang, "The Properties and Morphology of Poly (Butadiene-Graft-Styrene) Latex Modified Mortars", Applied Mechanics and Materials, Vols. 48-49, pp. 1286-1289, 2011

Online since:

February 2011

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$35.00

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