Core-shell type carbon microspheres and preparation method and application thereof
A technology of carbon microspheres and core-shell type, which is applied in the field of functional modification of the surface of carbon microspheres, which can solve the problems that there is no research on the flame retardancy of carbon microspheres, the compatibility cannot be improved well, and the content of surface functional groups is increased. , to achieve the effect of stable product performance, wide application range, and not easy to reunite
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Embodiment 1
[0028] Add 48.6g of glucose into 600mL of deionized water to prepare a 0.45mol / L glucose solution, add it into an autoclave, heat up to 300°C with stirring, and pressurize at 8MPa, react at constant temperature for 12h, and cool to room temperature naturally. The reaction product was suction-filtered and washed with deionized water until the pH value was 7, and the filter cake was dried at 120° C. for 300 min to obtain carbon microspheres.
[0029] Weigh 10g of terephthalic acid and dissolve it in 300mL of N,N-dimethylformamide, add it to a 500mL four-neck flask, add 50mL of ethylene glycol, 10g of carbon microspheres, and 1.3g of antimony trioxide in sequence, and stir The temperature was raised to 140° C. under the protection of nitrogen gas, and 5 mL of OP-10 was slowly added to the four-necked flask, and reacted for 7 hours. The product was washed with absolute ethanol and filtered until the washing solution was clear, then washed with deionized water, and the filter cake ...
Embodiment 2
[0033]Add 54g of glucose to 600mL of deionized water to prepare a 0.5mol / L glucose solution, add it to the autoclave, heat up to 280°C with stirring, and pressure 7MPa, react at constant temperature for 8h, and cool to room temperature naturally. The reaction product was suction-filtered and washed with deionized water until the pH value was 7, and the filter cake was dried at 120° C. for 300 min to obtain carbon microspheres.
[0034] Weigh 10g of terephthalic acid and dissolve it in 300mL of N,N-dimethylformamide, add it into a 500mL four-neck flask, add 100mL of ethylene glycol, 20g of carbon microspheres, and 3g of antimony trioxide in sequence, and pass through The temperature was raised to 160°C under nitrogen protection, and 10 mL of OP-10 was slowly added to the four-neck flask for 8 hours of reaction. The product was washed with absolute ethanol and filtered until the washing solution was clear, then washed with deionized water, and the filter cake was dried at 120°C ...
Embodiment 3
[0036] Add 32.4g of glucose to 600mL of deionized water to prepare a 0.4mol / L glucose solution, add it to the autoclave, heat up to 260°C with stirring, and press at 6.5MPa, react at constant temperature for 12h, and cool to room temperature naturally. The reaction product was suction-filtered and washed with deionized water until the pH value was 7, and the filter cake was dried at 120° C. for 300 min to obtain carbon microspheres.
[0037] Weigh 10g of terephthalic acid and dissolve it in 300mL of N,N-dimethylformamide, add it to a 500mL four-neck flask, add 50mL of ethylene glycol, 10g of carbon microspheres, and 2g of antimony trioxide in sequence, and pass through The temperature was raised to 180°C under the protection of nitrogen, and 8 mL of OP-10 was slowly added to the four-neck flask for 7 hours of reaction. The product was washed with absolute ethanol and filtered until the washing solution was clear, then washed with deionized water, and the filter cake was dried ...
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