Preparation of superhydrophobic and electromagnetic shielding textiles based on cellulose nanofibers/graphene
Cellulose nanofiber/reduced-oxide graphene(CNF@RGO)composites were prepared using gra-phene oxide(GO)and cellulose nanofiber(CNF).CNF@RGO composites and poly-dimethylsiloxane(PDMS)were used to coat cotton fabrics to prepare superhydrophobic and electromagnetic shielding textiles.The sur-face morphology and structure of CNF@RGO composites and coated fabrics were characterized by scanning electron microscope(SEM)and fourier-transform infrared spectrometry(FTIR).The results showed that the treated cotton fabric had surface roughness based on the microscopic rough structure of CNF@RGO compos-ites.The CNF@RGO composites were firmly coated on the surface of the coated cotton fiber with the help of PDMS.PDMS reduced surface energy of the treated cotton fabric.The treated cotton fabric showed minimum reflective loss of-23.6 dB at a frequency of 8.368 GHz and water droplet contact angle of 153.7°,achieving excellent electromagnetic shielding,anti-fouling and self-cleaning properties.
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维普
