Abstract
ABSTRACT Mechano-chemical interactions have been studied by using polyacrylic acid as a grinding aid for fine grinding in stirred media mills. The polymer additive was found to enhance grinding efficiency by up to 100%. Optimum operating conditions and mechanisms involved with the additive effects are discussed. It was also found that polymer conformation and polymer molecular weight change during stirred milling. Extension of the polymeric species and fragmentation of the high molecular weight polymer molecules resulting from grinding treatment may be beneficial.
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