Friction coating with light-emitting early-warning function and preparation method of friction coating

[0027] (1) Phosphor with double-layer luminescent effect and aluminum oxide (Al 2 o 3 ) Preparation of composite friction powder:

[0028] Take 20g of Al 2 o 3 With phosphors with different blue and green emission spectra, the phosphors of different colors and Al 2 o 3 According to the mass ratio of 1:4, add an appropriate amount of absolute ethanol to it, put it into a ball mill and stir it for 20 hours with a ball-to-material ratio of 500:1, and put it into an ultrasonic disperser for dispersion treatment to obtain uniformly dispersed Al 2 o 3 . In the above Al 2 o 3 Add 0.3% graphene to the mixture, continue to mix it with the oxide in a ball mill for 12 hours at a ball-to-material ratio of 500:1, and finally get Al 2 o 3 , phosphor and graphene composite powder.

[0029] (2) Preparation of composite film containing double-layer luminescent effect:

[0030] Prepare the epoxy resin-based film-forming system formula, with 45% epoxy resin, 15% polyamide resin, 15% ben

[0032] (1) Phosphors with a single green luminescence effect and titanium oxide (TiO 2 ) Preparation of composite friction powder:

[0033] Take 20g TiO 2 , add an appropriate amount of absolute ethanol to it, put it into a ball mill and stir it for 20h with a ball-to-material ratio of 500:1, then put the material into an ultrasonic disperser, open the suspension and agglomerate, so as to obtain uniformly dispersed TiO 2 , take out a part as a sample. Then add green phosphor powder to the remaining part, so that TiO 2 The mass ratio to the phosphor is 4:1, put it into a ball mill and stir for 12 hours at a ball-to-material ratio of 500:1 to obtain TiO 2 Composite powder with green phosphor.

[0034] (2) Preparation of composite films containing different luminous bodies:

[0035]Prepare the epoxy resin-based film-forming system formula, with 45% epoxy resin, 15% polyamide resin, 15% benzyl alcohol diluent, 10% OP-10 dispersant and 5% coupling agent, plus a small amount of di