Fluorocarbon-modified super-hydrophobic material and preparation method thereof
A carbon fluoride and super-hydrophobic technology, applied in the field of polymer materials, can solve the problems of loss of super-hydrophobicity, easy to be damaged by external force, poor super-hydrophobic surface strength and durability, etc., achieving remarkable effect, simple processing method and good application foreground effect
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Embodiment 1
[0022] ① Put the silicone rubber and vulcanizing agent tert-butyl perbenzoate on a two-roll mill at a temperature of 20°C for 5 minutes, and place the premixed rubber for later use; the mass fraction of tert-butyl perbenzoate is 0.5% ;
[0023] ② Fluorination of carbon material powdered activated carbon: prepare a mixed gas of fluorine gas and nitrogen gas with a fluorine gas concentration of 1%; dry the carbon material in the reactor at 50°C for 10 hours in vacuum, continuously fill with nitrogen gas, and vacuumize To ensure that there is no oxygen before the reaction; introduce the mixed gas of fluorine and nitrogen into the reactor, the fluorination temperature is 100°C, and the treatment time is 3h. Materials; the gas extracted after the reaction is passed into alkaline water for treatment;
[0024] ③ Extrude the fluorocarbon material, premixed rubber, polypropylene and stearic acid additives with a twin-screw extruder at a temperature of 200°C and a speed of 100r / min; th...
Embodiment 2
[0029] ① The silicone rubber and vulcanizing agent TMTD were milled for 5 minutes at a temperature of 20°C on a two-roll mill, and the premixed rubber obtained was placed for later use; the mass fraction of TMTD was 1.0%;
[0030] ② Fluorination of powdered carbon black of carbon material: prepare a mixed gas of fluorine gas and nitrogen gas with a fluorine gas concentration of 10%; dry the carbon material in the reactor at 50°C for 10 hours in vacuum, continuously fill with nitrogen gas, pump Vacuum to ensure that there is no oxygen before the reaction; introduce the mixed gas of fluorine and nitrogen into the reactor, the fluorination temperature is 10°C, and the treatment time is 5h. Carbon material; the gas extracted after the reaction is passed into alkaline water for treatment;
[0031] ③ Extrude the fluorocarbon material, premixed rubber, polypropylene and magnesium stearate additives with a twin-screw extruder at a temperature of 200°C and a speed of 100r / min; the fluo...
Embodiment 3
[0036] ① The silicone rubber and vulcanizing agent PDM were milled for 10 minutes on a double-roll mill at a temperature of 20°C, and the premixed rubber obtained was placed for later use; the mass fraction of the vulcanizing agent was 2.0%;
[0037] ② The carbon material coke Fluorination: prepare a mixed gas of fluorine and nitrogen with a fluorine concentration of 10%; dry the carbon material in the reactor at 50°C for 10 hours in vacuum, continuously fill nitrogen, and vacuumize to ensure that there is no carbon dioxide before the reaction. Oxygen; the mixed gas of fluorine and nitrogen is introduced into the reactor, the fluorination temperature is -25°C, the treatment time is 10h, after the reaction is completed, vacuum and nitrogen are changed 10 times, and the carbon fluoride material is obtained after the reaction; The gas is passed into alkaline water for treatment;
[0038] ③ Extrude the fluorocarbon material, premixed rubber, polypropylene and zinc stearate additi...
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