Synthesis, Characterization and Application of Polymeric Dispersants for Inkjet inks Industry

Abstract

To attain the finest optical performance of ink and prolonged shelf life time, dispersants have a great influence that should be attended to, so forth, the dispersants polymers sought for the current research work were prepared by following routes: 1-Reaction of different types of polyether with petrochemical based polyurethane prepolymer. 2- Reaction of same polyethers with prepared green based polyurethane prepolymer based on polyol castor oil. Chapter 1: General introduction, history, types of inkjet printing technology, different types of inkjet ink and the compositions of inks were presented. Chapter 2: Chapter 2 includes: • Introduction to petrochemical based polymeric dispersants, the established formulations and the product optical characterization. • Preparation of eight dispersants denoted PuD1 to PuD 8 by reaction of different polyethers with polyurethane prepolymer at 80-90oC in presence of Dibutyltin dilaurate DBTDL as a catalyst. • The chemical used and the prepared polymers were characterized structurally using Fourier Transform Infrared (FT-IR) spectroscopy and the polymer molecular weight parameters were probed using Gel permeation Chromatography (GPC).