Preparation of hydrogels composites for intelligent immession fabric by coating technique

To develop a novel intelligent immession fabric,a temperature sensitive linear copolymer of N-tert-butylacrylamide(NTBA) and acrylamide(AAm)(P(NTBA-co-AAm)) was translated into three-dimensional hydrogels which were bonded with the cotton fabric with the help of crosslinker BTCA by coating technique. The surface of the cotton fabrics was bonded with coatings of P(NTBA-co-AAm) hydrogels,as verified by Fourier transform infrared spectroscopy(FTIR) and environmental scanning electron microscopy(ESEM).The temperature responsiveness and water-impermeable ability of the coated fabrics were also examined.The results demonstrated that the hydrogels composites had good water-impermeable ability and temperature sensitivity when the add-on was high enough.The hydrogels can be covalently bonded with cotton fabrics by coating technique and the temperature sensitive hydrogel coated fabrics were satifactory for the requirements of immersion fabrics.