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2024 Posters

Surfactants and Detergents

Session: Surfactants and Detergents Poster Session

Nonionic surfactant tail length and the impact in pigment dispersion efficiency

Tuesday, April 30, 2024
5:00 PM – 6:00 PM EDT

    Presenting Author(s)

  • MF

    Matthew T. Fisher (he/him/his)

    TS&D Research Chemist
    Indorama IVTC
    The Woodlands, TX, United States

    • Co-Author(s)

  • Bruno Dario

    Research Scientist II
    Indorama Ventures
    The Woodlands, Texas, United States

    • Co-Author(s)

  • Michael Praw

    Technical Service and Development Manager
    Indorama Ventures
    The Woodlands, Texas, United States

  • AB

    Alann Bragatto

    Senior Researcher
    Indorama Ventures, United States

Abstract:

Stabilizing pigments in water-based coatings is a complex process that requires a robust pigment dispersion due to the need for compatibility with different resin systems. We tested nonionic surfactants with different hydrophilic tail length to disperse carbon black pigment. Comparing the theoretical physical-chemical properties, to actual dispersion testing data, we were able to show how the theoretical properties can predict dispersion results.

We synthesized nonionic surfactants for use as a carbon black pigment dispersant. To optimize dispersion stabilization, compatibility, and performance variations in the length of the polymeric chain that make up the tail of the surfactant were made and tested. The viscosity and thermal stability of the pigment concentrate and tint strength and rub out of a paint were tested, highlighting the effect of differences in tail length of the surfactant.