Preparation method of carbon-nanotube-modified polystyrene composite material

[0018] Prepare raw materials according to the following weight ratio: styrene 100; carbon nanotube 5; azobisisobutyronitrile 0.05; concentrated sulfuric acid 60; concentrated nitric acid 180; deionized water 100; ; 10% sodium hydroxide solution 10;

[0019] Add carbon nanotubes to a mixture of concentrated sulfuric acid and concentrated nitric acid, ultrasonically treat for 30 minutes, wash with deionized water until neutral, and dry in an oven at 80°C for 24 hours;

[0020] Mix styrene, carbon nanotubes, potassium persulfate, and sodium lauryl sulfate evenly, add 10% sodium hydroxide solution to adjust the pH value to 9, ultrasonically treat for 30 minutes, keep the temperature at 80°C, and add azobisisobutyronitrile to react After 24 hours, the reaction was completed and centrifuged until the upper layer was clear and free of impurities by adding methanol, and the product was dried in an oven at 50°C for 24 hours.

[0022] Prepare raw materials according to the following weight ratio: styrene 100; carbon nanotubes 10; benzoyl oxide 0.1; concentrated sulfuric acid 70; concentrated nitric acid 210; deionized water 120; % sodium hydroxide solution 12;

[0023] Add carbon nanotubes to a mixture of concentrated sulfuric acid and concentrated nitric acid, ultrasonically treat for 30 minutes, wash with deionized water until neutral, and dry in an oven at 80°C for 24 hours;

[0024] Mix styrene, carbon nanotubes, potassium persulfate, and sodium lauryl sulfate evenly, add 10% sodium hydroxide solution to adjust the pH value to 9, ultrasonically treat for 30 minutes, keep the temperature at 80°C, and add benzoyl oxide to react for 24 hours. At the end of the reaction, centrifuge and separate until the upper clear layer is free of impurities by adding methanol, and the product is oven-dried at 50°C for 24 hours.

[0026] Prepare raw materials according to the following weight ratio: styrene 100; carbon nanotubes 12; benzoyl oxide 0.12; concentrated sulfuric acid 80; concentrated nitric acid 240; deionized water 200; % sodium hydroxide solution 15;

[0027] Add carbon nanotubes to a mixture of concentrated sulfuric acid and concentrated nitric acid, ultrasonically treat for 30 minutes, wash with deionized water until neutral, and dry in an oven at 80°C for 24 hours;

[0028] Mix styrene, carbon nanotubes, potassium persulfate, and sodium lauryl sulfate evenly, add 10% sodium hydroxide solution to adjust the pH value to 9, ultrasonically treat for 30 minutes, keep the temperature at 80°C, and add benzoyl oxide to react for 24 hours. At the end of the reaction, centrifuge and separate until the upper clear layer is free of impurities by adding methanol, and the product is oven-dried at 50°C for 24 hours.