Process for preparing rare earth modified carbon nanotube/polyimide composite materials
A carbon nanotube and polyimide technology, which is applied in the field of composite material preparation, can solve the problems of reducing the effective aspect ratio of carbon nanotubes, the enhancement effect of carbon nanotubes is deteriorated, and it is difficult to effectively bond, etc. The effect of tribological and mechanical properties, low cost, and improved impact wear resistance
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Embodiment 1
[0014] The raw materials used include: polyimide resin powder, GCPI produced by Changzhou Guangcheng Plastic Co., Ltd. TM Type, 150 mesh. Carbon nanotubes: multi-walled carbon nanotubes produced by Shenzhen Nanoport Co., Ltd.
[0015] The weight percentages of each component in the rare earth modifier are as follows:
[0016] Rare earth compound 0.3%, ethanol 97%, ethylenediaminetetraacetic acid 0.4%, ammonium chloride 0.8%, nitric acid 0.5%, urea 1%.
[0017] The weight percentages of each component of the raw material are as follows:
[0018] Polyimide: 99%
[0019] Carbon nanotubes: 1%
[0020] The carbon nanotubes are first pretreated, and the carbon nanotubes are immersed in the above-mentioned rare earth modifier at room temperature for 2 hours, filtered and then dried. Mix the treated carbon nanotubes with distilled water to prepare a solution with a weight percent of carbon nanotubes of 2%, and put it into a planetary ball mill for ball milling for 30 minutes at a...
Embodiment 2
[0025] The raw materials used are: polyimide resin powder, GCPI produced by Changzhou Guangcheng Plastic Co., Ltd. TM Type, 150 mesh. Carbon nanotubes: multi-walled carbon nanotubes produced by Shenzhen Nanoport Co., Ltd.
[0026] The weight percentage of each component in the rare earth modifier: 0.5% of rare earth compound, 97.5% of ethanol, 0.2% of ethylenediaminetetraacetic acid, 0.5% of ammonium chloride, 0.5% of nitric acid, and 0.8% of urea.
[0027] The weight percentages of each component of the raw material are as follows:
[0028] Polyimide: 95%
[0029] Carbon nanotubes: 5%
[0030] The carbon nanotubes are first pretreated, and the carbon nanotubes are immersed in the above-mentioned rare earth modifier at room temperature for 2 hours, filtered and then dried. Mix the treated carbon nanotubes with distilled water to prepare a solution with a weight percent of carbon nanotubes of 6%, and put it into a planetary ball mill for ball milling for 60 minutes at a spe...
Embodiment 3
[0034] The raw materials used are: polyimide resin powder, GCPI produced by Changzhou Guangcheng Plastic Co., Ltd. TM Type, 150 mesh. Carbon nanotubes: multi-walled carbon nanotubes produced by Shenzhen Nanoport Co., Ltd.
[0035] The weight percentage of each component in the rare earth modifier: 1% of rare earth compound, 96% of ethanol, 0.5% of ethylenediaminetetraacetic acid, 1% of ammonium chloride, 0.5% of nitric acid, and 1% of urea.
[0036] The weight percentages of each component of the raw material are as follows:
[0037] Polyimide: 90%
[0038] Carbon nanotubes: 10%
[0039] The carbon nanotubes are first pretreated, and the carbon nanotubes are immersed in the above-mentioned rare earth modifier at room temperature for 2 hours, filtered and then dried. Mix the treated carbon nanotubes with distilled water to prepare a solution with a weight percent of carbon nanotubes of 10%, and put it into a planetary ball mill for ball milling for 60 minutes at a speed of ...
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