Low temperature plasma grafting hydrophilic modification of polyphenylene sulfide fabrics
To improve the hydrophilicity of polyphenylene sulfide(PPS)fabric,sodium styrene sulfonate(SSS)was grafted onto PPS fabric using dielectric barrier discharge plasma initiation.The effects of low-temperature plasma discharge power,treatment time,and content of SSS on the water flux of grafted PPS fabrics were studied.The optimal grafting conditions obtained through response surface optimization experiments were as follows:plasma discharge power of 5.2 W,treatment time of 122 s,and SSS content of 12%.Under the conditions,the maximum water flux of PPS fabric reached 15 897.62 L/(m2·h),which was 103.5%higher than that of the original fabric.The morphology and structure of the fabric were characterized by scanning electron microscopy(SEM)and X ray photoelectron spectroscopy(XPS).The results showed that sodium styrene sulfonate were successfully grafted onto the surface of PPS fabric,which significantly improved the water flux of the fabric.The modified fabric still maintained good performance after 5 times of cleaning.