Method for strengthening flame-resisting and cooling performance of bus
A performance and busbar technology, applied in coatings, fire-retardant coatings, etc., can solve the problems of burning insulation materials, short-circuit failure economy, insulation aging, etc., and achieve the effect of protecting operation safety, enhancing flame retardant and cooling performance, and outstanding dispersion.
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Embodiment 1
[0023] Use a graduated cylinder to measure 3 mL of refined styrene into a 100 mL beaker, add 90 mL of oleic acid, and stir magnetically at room temperature for 30 min at a speed of 500 rpm. Then, nano-magnesium hydroxide was added thereto in an amount of 8% of the mass of styrene, and magnetically stirred again for 30 minutes at a speed of 400 rpm to obtain a uniform suspension system. Add 140mL deionized water into a 1000mL three-neck flask, then pour the styrene suspension solution into the flask, and heat in a water bath. The reaction environment flask was filled with nitrogen all the time in order to remove the oxygen in the flask. After reacting at 50°C for 1.5h, the initiator potassium persulfate was added dropwise into the three-necked flask with a constant pressure dropping funnel, the amount of potassium sulfate added was 2% of the volume of the mixture, and the reaction temperature was adjusted to 60°C for 2.5h. Then the temperature was raised to 70° C. at a heating...
Embodiment 2
[0026] Use a graduated cylinder to measure 3 mL of refined styrene into a 100 mL beaker, add 60 mL of oleic acid, and stir magnetically at room temperature for 20 min at a speed of 400 rpm. Then, nano-magnesium hydroxide was added thereto in an amount of 4% of the mass of styrene, and magnetically stirred again for 30 minutes at a speed of 400 rpm to obtain a uniform suspension system. Add 140mL deionized water into a 1000mL three-neck flask, then pour the styrene suspension solution into the flask, and heat in a water bath. The reaction environment flask was filled with nitrogen all the time in order to remove the oxygen in the flask. After reacting at 40°C for 1 hour, the initiator potassium persulfate was added dropwise into the three-necked flask with a constant pressure dropping funnel, the amount of potassium sulfate added was 1.5% of the volume of the mixture, and the reaction temperature was adjusted to 65°C for 2 hours. Then the temperature was raised to 70° C. at a ...
Embodiment 3
[0029] Use a graduated cylinder to measure 3 mL of refined styrene into a 100 mL beaker, add 70 mL of oleic acid, and stir magnetically at room temperature for 20 minutes at a speed of 500 rpm. Then add nano-magnesium hydroxide therein, the added amount is 10% of the mass of styrene, and magnetically stir again for 30 minutes at a speed of 600 rpm to obtain a uniform suspension system. Add 140mL deionized water into a 1000mL three-neck flask, then pour the styrene suspension solution into the flask, and heat in a water bath. The reaction environment flask was filled with nitrogen all the time in order to remove the oxygen in the flask. After reacting at 45°C for 2h, the initiator potassium persulfate was added dropwise into the three-necked flask with a constant pressure dropping funnel, the amount of potassium sulfate added was 1% of the volume of the mixture, and the reaction temperature was adjusted to 60°C for 3h. Then the temperature was raised to 70° C. at a heating rat...
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