Preparation method of graphene oxide nanobelt/polar rubber composite material
A graphene nanoribbon and polar rubber technology, which is applied in the field of composite material preparation, can solve the problems of mechanical properties of graphene nanoribbon/rubber composite materials that have not been seen, and achieve the effect of low cost, simple preparation process and easy control
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Embodiment 1
[0039]Add 2g of multi-walled carbon nanotubes and 200ml of concentrated sulfuric acid into the beaker, stir for 1 hour, then place in an ice bath and slowly add 10g of potassium permanganate, keep the temperature below 10°C, then stir at room temperature for 1 hour, Then heat in an oil bath, react at 55°C for 0.5 hour, at 60°C for 1 hour, at 65°C for 1 hour, and keep at 70°C for 1 hour, then add 500ml of aqueous hydrogen peroxide (containing 6ml of 30% peroxide) in an ice bath Hydrogen peroxide) was diluted, then washed 3 times with 10wt% hydrochloric acid, washed 3 times with deionized water to neutrality, filtered with a mixed fiber microfiltration membrane with a pore size of 0.45 μm, and then dried with a freeze dryer until constant The temperature of the lyophilizer was -55°C, and the lyophilization time was 7 days to obtain graphene oxide nanobelts.
[0040] Take 0.10g of graphene oxide nanobelts and place them in 100ml of N, N-dimethylformamide, mechanically stir for 2 ...
Embodiment 2
[0042] The preparation of graphene oxide nanobelts and the preparation method of graphene oxide nanobelts / ethylene vinyl acetate rubber composites are the same as in Example 1.
[0043] The difference is that the graphene oxide nanobelt added in embodiment 1 is 0.2 part, and the embodiment 2 adds 0.5 part, and the specific steps of preparing the graphene oxide nanobelt dispersion are as follows: get 0.25g graphene oxide nanobelt and place it in 250ml N , mechanically stirred in N-dimethylformamide for 2 hours, ultrasonically dispersed for 2 hours, and the ultrasonic power was 90W, and then stirred for 10 hours to obtain a graphene oxide nanoribbon dispersion.
Embodiment 3
[0045] The preparation of graphene oxide nanobelts and the preparation method of graphene oxide nanobelts / polar rubber composites are the same as in Example 1.
[0046] The difference is that the polar rubber in Example 3 is hydrogenated carboxylated nitrile rubber, and the specific steps are as follows: 5g of hydrogenated carboxylated nitrile butadiene rubber is placed in 60ml of tetrahydrofuran, and mechanically stirred for 24 hours to obtain a hydrogenated carboxylated nitrile butadiene rubber solution. Then the graphene oxide nanoribbon dispersion liquid and the hydrogenated carboxylated nitrile rubber solution were mixed and dried in vacuum. Dissolve 0.15g dicumyl peroxide in 0.5ml acetone, add it dropwise on the graphene oxide nanobelt / hydrogenated carboxylated nitrile rubber film, further knead the sheet, vulcanize and form it, and prepare the graphene oxide nanobelt / hydrogenated carboxyl Nitrile rubber compound.
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