Preparation And Property Study Of UV Curable Inkjet Ink In CTP

In this thesis, two kinds of oligomers with low viscosity, polyurethane acrylate (PUA) and dendrimer acrylate (DA), were designed and synthesized. The UV curable property of these two oligomers each or composite as the main materials in UV curable inkjet ink was studied in detail. The contents were included below:1. The PUA with low viscosity was synthesized based upon toluene 2,4-diisocyanate (TDI), methylacrylate-β-hydroxyethyl (HEMA) and polyethylene glycol (PEG400). The effect of addition manners of reactants, reactant ratio, catalyst types, and reaction temperature, etc on the viscosity of PUA was studied in detail.2. The dendrimer acrylate (DA) oligomer was synthesized based upon the michael addition reaction of trimethylolpropane triacrylate (TMPTA) and ethylenediamine (EDA). The effect of reactant ratio, reaction temperature, solvent volume, reaction time on the synthesis of DA was studied in detail.3. The above synthesized two oligomers each and composite were used as the main materials in ink jet. The effect of oligomers concentrations and ratios, dilute reactants concentrations and ratios, photoinitiator types and concentrations and active amine additive on the UV curable speed of coating...