A kind of method of carbon black surface graphene
A technology of graphene and carbon black, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve problems such as improving carbon black reinforcement performance, achieve the effect of improving performance and increasing comprehensive mechanical properties
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Embodiment 1
[0026] A, the preparation of surface graphene carbon black (the structural change of carbon black is as figure 1 shown)
[0027] Take a certain amount of 1g carbon black sample (N134) and put it into a three-necked flask, pour 20mL of 67% nitric acid, and react in an oil bath at a constant temperature of 150°C for 10h. After the reaction was completed, the oxidized carbon black sample was obtained by centrifugation and washed several times with deionized water.
[0028] Using the air heat reduction method, spread the dried oxidized carbon black in a 30*50mm porcelain boat, place it in a muffle furnace, and heat it at 400°C for 10 minutes in an open environment.
[0029] B, preparation of carbon black / rubber composite
[0030] Take natural rubber and xylene at a mass ratio of 1:43, dissolve at 50°C for more than 4 hours, and prepare a 2.3wt% rubber-xylene solution for use, and keep it sealed to prevent leakage of xylene.
[0031] Weigh 0.1g of modified carbon black filler in...
Embodiment 2
[0033] A, the preparation of surface graphene carbon black
[0034] Take a certain amount of 6g carbon black sample (N234) and put it into a three-necked flask, pour 100mL of 67% nitric acid, and react in an oil bath at a constant temperature of 70°C for 20h. After the reaction was completed, the oxidized carbon black sample was obtained by centrifugation and washed several times with deionized water.
[0035] Using the air heat reduction method, spread the dried oxidized carbon black in a 30*50mm porcelain boat, place it in a muffle furnace, and heat it at 300°C for 20 minutes in an open environment.
[0036] B, preparation of carbon black / rubber composite
[0037] Take natural rubber and xylene at a mass ratio of 1:43, dissolve at 50°C for more than 4 hours, and prepare a 2wt% rubber-xylene solution for later use, and keep it sealed to prevent leakage of xylene.
[0038] Weigh 0.1g of modified carbon black filler in a flask, measure enough xylene solution to ultrasonically...
Embodiment 3
[0040] A, the preparation of surface graphene carbon black
[0041] Take a certain amount of 8g carbon black sample (N330) and put it into a three-necked flask, pour 150mL of 67% nitric acid, and react in an oil bath at a constant temperature of 100°C for 40h. After the reaction was completed, the oxidized carbon black sample was obtained by centrifugation and washed several times with deionized water.
[0042] Using the air heat reduction method, spread the dried oxidized carbon black in a 30*50mm porcelain boat, place it in a muffle furnace, and heat it at 200°C for 30 minutes in an open environment.
[0043] B, preparation of carbon black / rubber composite
[0044] Take natural rubber and xylene at a mass ratio of 1:43, and dissolve them at 50°C for more than 4 hours to prepare a 2.3 wt% rubber-xylene solution for use. Keep it sealed to prevent leakage of xylene.
[0045] Weigh 0.1g of modified carbon black filler in a flask, measure enough xylene solution to ultrasonicall...
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