Improved tear resistance by low environmental impact coupling of plasma reactive and additive treatment of a TPU/PET coated fabric

An environmentally friendly approach, which consists in coupling a dielectric barrier discharge (DBD) based atmospheric plasma treatment with coating of an aqueous phase polyurethane dispersion (PUD) containing blocked polyisocyanates, is proposed to improve the adhesion thermoplastic (TPU) film onto poly-(ethylene terephthalate) (PET) textile fabric. In this study, screening digital design experiment plan (DOE) was developed determine influence process parameters on between and fabric evaluate best possible value. The considered are: power, speed undergoing treatment, concentration polyisocyanates (NCO) PUD air gap. measured by peeling test further scanning electron microscope observations were carried out. Results showed that increase both processing power NCO content PUD, as well decrease DBD speed, had positive effect adhesion. addition, X-ray photoelectron spectroscopy contact angle measurements demonstrated oxygen/carbon atomic percentage ratio reference treated Thus, calibrated oxidation PET leads greater chemical physical interaction TPU film, results better film-fabric