Effect of poly(sodium 4-styrenesulfonate) modified carbon black on the dispersion and properties of waterborne polyurethane nanocomposites

The PCB exhibits an extraordinary stability than the pristine CB in WPU emulsion. The negatively charged PCB particles could homogeneously disperse in the anionic WPU emulsion through electrostatic repulsion and yield an excellent stability. The properties of the WPU/PCB hybrid films were improved with the addition of PCB.