Use of novel polyetheralkanolamine comb polymers a

Authors: D T Nguyen

Publish Date: 2007/07/12

Volume: 4, Issue: 3, Pages: 295-309

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Abstract

The adsorption of a series of polyetheralkanolamine comb polymers characterized by a different length of the hydrophilic tail has been investigated at the carbon black/water interface by measuring adsorption isotherm contact angle wetting rate zeta potential and particle size distribution Zeta potential measurements and adsorption layer thickness results suggest that polyetheralkanolamines with high ethylene oxide EO content provide only steric stabilization and they adsorb at the interface with the ethylene oxide chains in a coil conformation The thickness of the adsorbed layer increases with increasing EO units however the surface tension and interfacial tension decrease with increasing EO content Adsorption isotherms show that most of the added polyetheralkanolamine adsorbs onto the carbon black and only a small amount stays in the water phase When treated with a polyetheralkanolamine carbon black dispersions show uniform unimodal and narrow particle size distribution with very small median sizes of about 010 μm The pigment concentrates containing the polyetheralkanolamine show excellent color compatibility in various decorative commercial white paints containing a wide range of resins and exhibit low viscosity with nearly Newtonian flow behaviorThe author would like to extend his gratitude to Ms Judy Perez for skillful laboratory assistance and to Lisa Fine for valuable discussion All information contained herein is provided “as is” without any warranties express or implied and under no circumstances shall the authors or Huntsman be liable for any damages of any nature whatsoever resulting from the use or reliance upon such information Nothing contained in this publication should be construed as a license under any intellectual property right of any entity or as a suggestion recommendation or authorization to take any action that would infringe any patent The term “Huntsman” is used herein for convenience only and refers to Huntsman Corporation its direct and indirect affiliates and their employees officers and directors

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