Effect of Poly-ε-caprolactone Hyperdispersants on the Rheological Behavior and Dispersion Stability of Magnetic Dispersion

Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (4): 637.

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Effect of Poly-ε-caprolactone Hyperdispersants on the Rheological Behavior and Dispersion Stability of Magnetic Dispersion

ZHANG Xue-Li, WANG Zheng-Dong, HU Li-Ming

Technical Chemical Physical Institute, East China University of Science and Technology, Shanghai, 200237

Received:1996-04-11 Online:1997-05-24 Published:1997-05-24

Abstract

Abstract: The rheological behavior and dispersion stability of magnetic powder suspensionwere studied.With the aid of hyperdispersants having poly (ε-caprolactone) as solvatablechian, the viscosity of the suspension was lowered and the dispersion stability was improvedobviously.The effect of the hyperdispersants was the result of both the type of the anchor-ing group and the molecular weight of the solvable chain.When the molecular weight of thesolvatable chain is 700 and the anchoring group is the mixture of carboxyl and tertiaryamine, the hyperdispersant, has the best effectiveness.

Key words: Hyperdispersant, Magnetic particle, Rheology

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ZHANG Xue-Li, WANG Zheng-Dong, HU Li-Ming. Effect of Poly-ε-caprolactone Hyperdispersants on the Rheological Behavior and Dispersion Stability of Magnetic Dispersion[J]. Chem. J. Chinese Universities, 1997, 18(4): 637.

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Effect of Poly-ε-caprolactone Hyperdispersants on the Rheological Behavior and Dispersion Stability of Magnetic Dispersion

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