Waterborne Polyurethane-Acrylate Containing Different Polyether Polyols: Preparation and Properties

Abstract

The waterborne polyurethane–acrylate (PUA) was prepared based on isophorone diisocyanate, polyether polyol, dimethylol propionic acid, hydroxyethyl methyl acrylate, butyl acrylate (BA) and styrene (St). Fourier transform infrared spectrometry (FT-IR), Ultraviolet-visible spectrophotometry (UV-Vis) and Differential scanning calorimetry (DSC) were employed to investigate the structures, optical transparency and thermal properties. Some physical properties of the aqueous dispersions such as viscosity, particle size and surface tension were measured. Some mechanical performances and solvent resistance of films were investigated. When the ratio of the BA/St was 30/70, the films had excellent water and alkali resistances. The obtained PUA composites have great potential application such as coatings, leather finishing, adhesives, sealants, plastic coatings and wood finishes.

Keywords:

• Mechanical property
• Polyurethane-acrylate
• Surface tension
• Thermal property

ACKNOWLEDGMENT

This project was supported by the Agricultural Independent Innovation of Jiangsu Province (CX(11)2032), Jiangsu Planned Projects for Postdoctoral Research Funds (1002033C) and Jiangsu Province Key Laboratory of Fine Petro-chemical Technology (213164).

Notes

#: Slightly yellow and transparent; ★: Slightly white, blue and semitransparent; ∗: Milkiness, blue and semitransparent; §: Milkiness, blue and semitransparent; ▴: stable ; ▾: precipitate; •: layering.