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The water-soluble sulphonated acetone–formaldehyde (SAF) resin was synthesized by a reaction among acetone, formaldehyde and sodium sulfite. It is applied as a dispersant of a coal–water slurry, and the influence of the synthesis processing parameter on the inherent viscosity and the dispersing ability of the SAF resin was investigated. The composite SAF resin was regarded as an aliphatic high polymer...
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