Graphene oxide-enhanced PVC/CPE composite pipe and preparation method thereof
A composite pipe and graphene technology, which is applied in the field of composite materials, can solve the problems affecting the performance of composite materials and weak bonding force, and achieve the effects of enhanced bonding force, improved mechanical properties, and excellent tensile strength
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Embodiment 1
[0024] Add 600kg of concentrated sulfuric acid to the reaction kettle, control the temperature at zero degrees, add 15kg of graphite powder and 7.5kg of sodium nitrate solid mixture while stirring, then add 48kg of potassium permanganate, react at 15°C for 50min, then raise the temperature to 35°C, Continue to react for 30min, then add 840kg deionized water, and continue to mix for 20min,
[0025] Add 54kg of hydrogen peroxide, react for 10-20min, and discharge the reaction solution after it turns bright yellow. Then the reaction solution was filtered and washed with 5% HCl solution and deionized water. Finally, the filter cake was fully dried in a vacuum oven at 60° C. to obtain graphene oxide. Add 5kg of graphene oxide and 0.1kg of silane coupling agent KH550 into the continuous powder surface modification machine, perform surface modification on graphene oxide under high-speed stirring at 1200r / min, and discharge after stirring for 20 minutes. Then, the surface-modified g...
Embodiment 2
[0027]Add 400kg of concentrated sulfuric acid to the reactor, control the temperature at zero degrees, add 10kg of graphite powder and 5kg of sodium nitrate solid mixture while stirring, then add 36kg of potassium permanganate, react at 15°C for 50min, then raise the temperature to 35°C, continue After reacting for 30 minutes, add 560kg of deionized water, continue stirring for 20 minutes, add 36kg of hydrogen peroxide, and react for 10-20 minutes. The reaction solution turns bright yellow and then discharges. Then the reaction solution was filtered and washed with 5% HCl solution and deionized water. Finally, the filter cake was fully dried in a vacuum oven at 60° C. to obtain graphene oxide. Add 6kg of graphene oxide and 0.12kg of silane coupling agent KH560 into the continuous powder surface modification machine, perform surface modification on graphene oxide under high-speed stirring at 1200r / min, and discharge after stirring for 20 minutes. Then the graphene oxide after ...
Embodiment 3
[0029] Add 800kg of concentrated sulfuric acid to the reactor, control the temperature at zero degrees, add 20kg of graphite powder and 10kg of sodium nitrate solid mixture while stirring, then add 72kg of potassium permanganate, react at 15°C for 50min, then raise the temperature to 35°C, continue After reacting for 30 minutes, add 1000kg of deionized water, continue stirring for 20 minutes, add 72kg of hydrogen peroxide, and react for 10-20 minutes. The reaction solution turns bright yellow and then discharges. Then the reaction solution was filtered and washed with 5% HCl solution and deionized water. Finally, the filter cake was fully dried in a vacuum oven at 60° C. to obtain graphene oxide. Add 12kg of graphene oxide and 0.25kg of silane coupling agent KH550 into the continuous powder surface modification machine, perform surface modification on graphene oxide under high-speed stirring at 1200r / min, and discharge after stirring for 20 minutes. Then the graphene oxide af...
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