A method for preparing high-energy composite hydrocarbon fuel and its fuel
A hydrocarbon fuel and high-energy technology, applied in the field of preparation of high-energy composite hydrocarbon fuel, method and its fuel, can solve problems such as poor reproducibility, achieve high weight and volume combustion calorific value, good stability and reproducibility, The effect of increasing energy density
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Embodiment 1
[0037] Weigh 1.00 g of hexadecyltrimethoxysilane, dissolve it in 30 mL of methanol-water mixed solvent (volume ratio 2:1), stir and hydrolyze at 25° C. for 3 h.
[0038] Add 1.00g of original nano-boron powder and 30mL of methanol-water mixed solvent (volume ratio 2:1) into a three-necked flask, ultrasonically disperse for 5min, stir and heat to 70°C under nitrogen atmosphere, then add the above hydrolyzed silane coupling agent dropwise The solution was reacted for 3 hours, filtered with suction, the solid was washed with methanol-water mixed solvent, and then filtered with suction, and the washing was repeated three times in this way, and finally the boron powder was dried in an oven at 60°C.
[0039] Add the nano-boron powder (the content of B is 1wt%) modified by the above-mentioned method in the decahydronaphthalene fuel, leave standstill after ultrasonic dispersion 5min, after 24h, the system is still very uniform, no sedimentation (such as figure 1 shown). It can be see...
Embodiment 2
[0041] Weigh 1.00 g of n-octyltrimethoxysilane, dissolve it in 30 mL of methanol-water mixed solvent (volume ratio 2:1), and stir and hydrolyze at 25° C. for 12 h.
[0042] Add 1.00g of original nano-boron powder and 30mL of methanol-water mixed solvent (volume ratio 2:1) into a three-neck flask, ultrasonically disperse for 15min, stir and heat to 80°C under a nitrogen atmosphere, then add the above-mentioned hydrolyzed silane coupling agent dropwise The solution was reacted for 6 hours, filtered with suction, the solid was washed with methanol-water mixed solvent, and then filtered with suction, and the washing was repeated three times in this way, and finally the boron powder was dried in an oven at 60°C.
[0043] Add the nano-boron powder modified by the above method (the content of B is 10wt%) to the decahydronaphthalene fuel, ultrasonically disperse it for 5 minutes and let it stand still. After 24 hours, the system is still very uniform without sedimentation.
Embodiment 3
[0045] Weigh 1.00g of octadecyltriethoxysilane, dissolve it in 30mL of ethanol-water mixed solvent (volume ratio 2:1), and stir and hydrolyze at 55°C for 12h.
[0046] Add 1.00g of original nano-boron powder and 30mL of ethanol-water mixed solvent (volume ratio 2:1) into the three-necked flask, ultrasonically disperse for 10min, stir and heat to 90°C under nitrogen atmosphere, then add dropwise the hydrolyzed silane coupling agent solution , react for 12 hours, filter with suction, wash the solid with ethanol-water mixed solvent, and filter with suction again, repeat the washing three times in this way, and finally put the boron powder in an oven at 60°C to dry.
[0047] In JP-10 fuel, add the nano-boron powder (the content of B is 10wt%) modified by the above-mentioned method, leave standstill after ultrasonic dispersion 5min, after 24h, the system is still very uniform, no sedimentation (such as figure 2 shown).
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