Graphene polyether-ether-ketone composite coating and preparation method thereof
A composite coating, olefin polyether technology, applied in the direction of coating, etc., can solve the problems of large amount of titanium-based whiskers, reduced coating performance, large size of modified materials, etc., to improve toughness and other mechanical properties, improve resistance Grinding and lubricity, the effect of good structure to enhance performance
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[0034] Correspondingly, the present invention also provides a preparation method of graphene polyether ether ketone composite coating, comprising the following steps: mixing sulfolane, 4,4'-difluorobenzophenone and hydroquinone, and then adding xylene After heating and stirring, add a condensing agent, heat up to 150-180°C for reaction, gradually raise the temperature to 240-260°C and keep it for 10-15 minutes, remove xylene, continue to heat up to 290-310°C for reaction, add graphene, and heat at 290-290°C After reacting at 310°C, a pre-material is obtained; the pre-material, surfactant and octaphenyl-POSS are mixed to obtain a graphene polyether ether ketone composite coating.
[0035] As a preferred version, the condensing agent is sodium carbonate and / or potassium carbonate. The surfactant is preferably one or more of DP-518 dispersant, DC-3AD modified polysiloxane and Z-6070 alkylsilane. Preferably, 20-25 parts by weight of 4,4'-difluorobenzophenone, 40-50 parts by weigh...
Embodiment 1
[0052] According to the proportioning of raw materials shown in Table 1, add sulfolane, 4,4'-difluorobenzophenone and hydroquinone successively in the reaction flask with water separator, then add xylene, heat and stir, After the raw materials are completely dissolved, add a condensing agent and raise the temperature to 150-180°C for reaction. After 1 hour of reaction, gradually raise the temperature to 250°C and keep it for 10-15 minutes, then remove the xylene, continue to heat up to 300°C for 2-3 hours, and then add heat conduction Graphene filler, continue to react at 300°C for 1 to 2 hours, stop the reaction, and obtain the precursor.
[0053] After the above preparation is completed, the uncooled pre-material is mixed with the surfactant, and then directly coated on the base material. After the coating, the base material is washed with water, and the solvent and inorganic salt are removed, and then placed in an oven at 180 ° C Drying at low temperature for 3-5 hours, the...
Embodiment 2～5
[0055] According to the ratio of raw materials shown in Table 1, the preparation method of Example 1 was adopted to obtain a base material coated with polyether ether ketone on the surface.
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- IPC
- C09D161/16; C09D7/12; C08G8/02
- Inventors
- 肖彬; å½å½©ä½‘