Influence of fabric surface modification of bacterial cellulose on carbon fiber fabric properties

In order to study the influence of bacterial cellulose(BC) on acrylic-based carbon fiber fabric,acrylic-based fabric and BC as raw material and starch as adhesives,acrylic-based carbon fiber fabric and acrylic-based / BC carbon fiber fabric composite materials were prepared by pre-oxidation(heating rate of 1 ℃ /min,pre-oxidation temperature of 250 ℃,pre-oxidation time of 5 h) and carbonization(heating rate 5 ℃ / min,carbonization temperature of 900 ℃,carbonization time of 8 h).Scanning electron microscopy,four-probe tester,Fourier transform infrared spectroscopy and laser Raman spectroscopy were used to characterize the morphology,electrical properties and structure.The results showed that the surface of acrylic-based / BC carbon fiber fabric is smoother.Nanostructure surface modification improves the conductivity of the fibers and reduces the difference in conductivity of between carbon fiber fabrics which are about 0.05 S / m.Cyano nitrile groups are more fully transformed by BC surface modification.The degree of graphite relative increases,without appreciable changes.