Preparation method of carbon nanotube hollow sphere composite material and composite material

[0032] In order to achieve the above object, the specific technical solution of the present invention is that the preparation method of the carbon nanotube hollow sphere composite material comprises the following steps: (1) combining carbon nanotubes, polystyrene microspheres, amino surfactant, (CH 2 Oh) 2 Mix with resin, stir for 30 minutes, heat up to form a gel state; (2) pass through a screen, and sieve polystyrene microspheres coated with carbon nanotubes with a certain diameter; (3) put them in a vacuum oven at 80°C-150°C , making the redundant (CH 2 Oh) 2 、H 2 O and polystyrene microspheres volatilize to obtain hollow microspheres coated with carbon nanotubes; (4) re-add polystyrene microspheres and the hollow microspheres of carbon nanotubes obtained in step (3) to mix and disperse, pack into Put the graphite box into the CVI furnace, raise the temperature of the CVI furnace to 900°C, and then pass in the carbon source gas for pyrolysis, so that the decomposed carb...

[0042] Example 1, such as Figure 1-Figure 5 As shown, first use nano-sized polystyrene microspheres such as figure 1 Middle S 1 → Prepare the carbon nanotubes 2 with a length ≈nm and a diameter ≈nm and put them into the container → put the nanoscale carbon nanotubes 2, polystyrene microspheres 3, amino surfactant, (CH 2 Oh) 2 Mix with a small amount of resin and stir evenly at low temperature for 30 minutes → form a gel state by heating → filter out 100nm carbon nanotube-coated polystyrene microspheres through a sieve such as figure 1 Middle S 2 Coated S 1 →Volatilize excess (CH 2 Oh) 2 、H 2 O and polystyrene → add polystyrene microspheres 3 again and stir and disperse with the hollow microspheres coated with carbon nanotubes 2 formed above → put into graphite box, and then put into CVI furnace together with graphite box → CVI furnace temperature Raise to 900°C and pass carbon source gas CH 4 After pyrolysis for 20 minutes, the decomposed CH 4 Molecules, forming st...

[0051] Example 2, such as Figure 1-Figure 5 As shown, in the preparation process, preparations: 200nm polystyrene microspheres 3 10mL pure water preserved 0.05% w / v, length L≈20nm, diameter Φ≈5nm carbon nanotubes 2 10mL, 1-2nm graphene powder 10mL , phenolic resin diluent 20mL, 3 50mL beakers, 200mL bottle C 2 h 6 O, RT-400℃ oven specification 100*100*100, amino surfactant 20mL, (CH 2 Oh) 2 100mL, double planetary stirrer, 200nm sound wave dispersion screening, graphite box 20*20*10cm, CVI furnace model 1000, 50nm polystyrene microspheres obtained from pure water preservation solution 3 10mL into beaker No. 1 → at 100°C Oven for 10min to evaporate excess H 2 O→S 1 The surface of the ball is coated with 20mL of phenolic resin diluent 1球面 →Use the prepared L≈20nm, Φ≈5.5 multi-walled carbon nanotubes 2 10mL into a No. 2 beaker container, add 2mL surfactant and 20mL (CH 2 Oh) 2 Stir evenly through double planets for 1 hour → pour the polystyrene microspheres coated with p...