Method and application of fluorinated graphene coating for preparing triboelectric nanogenerator
A technology of fluorinated graphene and nano-generators, which is applied in the direction of friction generators, coatings, anti-corrosion coatings, etc., and can solve problems such as a blank application field
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[0031] The first is the preparation of fluorinated graphene film, fluorinated graphene powder was dispersed in an ethanol solution, after ultrasonic probe 70W-90W, and the ethanol solution was fluorinated graphene 20-40min suction filtration to give the fluorinated graphene contact angle for the film.
[0032] Preparation friction generating nano fiber: conductive material, such as silver nanowires, carbon nanotubes, graphene, a coated titanium carbide wherein the polyester fiber, cotton, acetate fiber, bamboo fiber, linen, polyester, etc. a yarn surface, vacuum oven drying, or spray coating followed by a layer of high concentration (10mg / mL-50mg / mL) alkenyl fluorinated graphite as a negative triboelectric layer, not on the one end portion of the yarn sensing electrodes alkenyl coated graphite fluoride as an electrode terminal, drying in a drying oven, dried and used in the next test to collect raindrops. Simulation application scenario in the agricultural environment in the f...
Embodiment 1
[0038]The first is the preparation of fluorinated graphene film, the graphene 10mg fluoride powder was dispersed in 20mL ethanol solution through an ultrasonic probe 70W 30min, and then the fluorinated graphene ethanol solution was suction-filtered fluorinated graphene films. Meanwhile, the control group using polydimethylsiloxane (PDMS) having hydrophobic membranes and commercially available Teflon membrane. PDMS is prepared by an elastic membrane and curing agent at a mass ratio of 10: 1 after vacuum degassing mixed, placed in an oven and cured under conditions 20-60min 70-90 ℃. The contact angle of the three membranes tested simultaneously, figure 1 Shown, an alkenyl fluorinated graphite film having a strong film on the Teflon membrane and PDMS superhydrophobic excellent performance.
Embodiment 2
[0040] Preparation friction generating nano fiber, the carbon nanotube dispersion of 14wt% was uniformly coated on the surface of polyester fibers, 60 deg.] C vacuum oven drying 15min, then ethanol was uniformly fluorinated graphene 30mg / mL of multiple coats the conductive surface of the yarn, the yarn end without leaving a portion of the electrode coating as an electrode terminal. After the yarn through an oven 70 deg.] C 5min after drying to obtain a yarn having a negative triboelectric property. Simulation application scenario in the agricultural environment in the following way: The triboelectric negative conductive yarn end without the fluorinated graphene coated, and placed under the faucet scenarios simulated rain test performance to collect raindrops . figure 2 The results show that the fibers have excellent output power performance, which show the feasibility to collect raindrops energy used in agricultural textiles.
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