Waterborne Polyurethane/Acrylics Interpenetrating Networks Polymer:Preparation,Characterization and Application for antipilling coating materials

Aqueous polyurethane dispersions with C=C double bonds were synthesized by using Isophorone diisocyanate, Polyether diol 218, polyether-tribasic alcohol 310 and dimethylolbutanoic acid without any organic solvents. Then waterborne polyurethane-acrylic hybrid emulsion interpenetrating network were prepared with the method of pre-emulsification semi-continuous. Based upon the FT-IR, DSC, TG and particle size analysis, the experimental results showed that polyurethane with C=C double bond and acrylate has good compatibility and exhibits phase separation morphology with interpenetrating networks. Thermal stability and emulsion stability is good. Anti-pilling grade of different fabrics rise two or three levels after finishing by using waterborne polyurethane and acrylic ester interpenetrating networks polymer.