Modified carbon nanotube and preparation method thereof
A technology of carbon nanotubes and nanotubes, which is applied in the field of modified carbon nanotubes and its preparation, can solve the problems of natural rubber limitations, poor mechanical properties measurement, etc., and achieve improved dispersion ability, simple and easy to control operation, and cost-free pollution Effect
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Embodiment 1
[0020] Preparation of Modified Carbon Nanotubes
[0021] 20 g of perfluorooctyl quaternary ammonium iodide, 3 g of RF resin, 2 g of RE resin and 100 g of CNTs were simply premixed and dried in vacuum at 80 °C for 24 h. The mixture was placed in a continuous internal mixer at 80 °C for surface modification, the rotor speed was set at 100 r / min, and the modified carbon nanotubes were prepared by reacting for 1.5 h.
[0022] The prepared modified carbon nanotubes were added to 1000 g of deionized water, stirred with an electric stirrer for 10 min, and the obtained mixture was ground in a nano-dispersion grinder to obtain a suspension of carbon nanotubes.
[0023] The dispersion stability of carbon nanotubes is characterized by the dispersion stability index (D):
[0024] D(%)=(To-Ts) / Ts×100%
[0025] In the formula: T O is the light transmittance of deionized water, and Ts is the light transmittance of the test sample.
[0026] The light transmittance was measured with an ult...
Embodiment 2
[0031] Preparation method of modified carbon nanotube / natural rubber composite material
[0032] 0.15 g of perfluorooctyl quaternary ammonium iodide, 0.00015 g of RE resin and 3 g of CNTs were simply premixed and dried in vacuum at 80 °C for 24 h. The mixture was placed in a continuous internal mixer at 80 °C for surface modification, the rotor speed was set at 100 r / min, and the modified carbon nanotubes were prepared by reacting for 2 h.
[0033] The prepared modified carbon nanotubes were added to 100 g of deionized water, stirred with an electric stirrer for 10 min, and the obtained mixture was ground in a nano-dispersion grinder to obtain a suspension of carbon nanotubes.
[0034] The obtained modified carbon nanotube suspension, 4 g ZnO, 2 g vulcanization accelerator, 1.5 g dispersant, and 1.4 g sulfur were ground in a grinder, and the obtained grinding liquid was slowly added to 166.7 g natural rubber latex (solid Content 60%) in a beaker, mix and stir. Put the stirre...
Embodiment 3
[0036] Preparation method of modified carbon nanotube / natural rubber composite material
[0037] 0.5 g perfluorooctyl quaternary ammonium iodide, 0.2 g RF resin, 0.05 g RE resin and 10 g CNTs were simply premixed, and dried in vacuum at 80 °C for 24 h. The mixture was placed in a continuous internal mixer at 80 °C for surface modification, the rotor speed was set at 100 r / min, and the modified carbon nanotubes were prepared by reacting for 2.5 h.
[0038] The prepared modified carbon nanotubes were added to 300 g of deionized water, stirred with an electric stirrer for 10 min, and the obtained mixture was ground in a nano-dispersion grinder to obtain a suspension of carbon nanotubes.
[0039]The obtained modified carbon nanotube suspension, 4 g ZnO, 2 g vulcanization accelerator, 1.5 g dispersant, and 1.4 g sulfur were ground in a grinder, and the obtained grinding liquid was slowly added to 166.7 g natural rubber latex (solid Content 60%) in a beaker, mix and stir. Put the ...
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