Modified carbon fiber containing Ni-P-SiC (titanium diboride) composite plating layer and preparation and application thereof
A composite coating and carbon fiber technology, applied in the direction of liquid chemical plating, coating, metal material coating technology, etc., can solve the problems of poor wettability and dispersibility, short service life, etc.
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Embodiment 1
[0060] Step 1: Carbon Fiber Pretreatment
[0061] (1) Degumming: Put the carbon fiber in a muffle furnace and heat it at 400°C for 1 hour. After degumming, soak in absolute ethanol for 5 minutes to remove oil, and then rinse with deionized water.
[0062] (2) Roughening: Treat with potassium dichromate (20 g / L) and sulfuric acid (100 mL / L) at room temperature for 10 minutes. The degummed carbon fiber has fewer surface active functional groups, and roughening can change the state of the functional groups and increase the specific surface area of the carbon fiber. Take out the roughened carbon fibers, and then use distilled water to wash the acidified carbon fibers with the aid of ultrasonic waves until the washed liquid is neutral.
[0063] (3) Neutralization: The acid remaining in the roughening process is neutralized with sodium hydroxide.
[0064] (4) Sensitization: Sensitization was treated with stannous chloride (14 g / L) and hydrochloric acid (40 mL / L) at room tempera...
Embodiment 2
[0072] The surface and cross-sectional morphology of the carbon fiber Ni-P-nano-SiC composite coating are as attached. image 3 and Figure 4 shown.
[0073] Step 1: Carbon Fiber Pretreatment
[0074] (1) Degumming: Put the carbon fiber in a muffle furnace and heat it at 430°C for 0.8h. After degumming, soak in absolute ethanol for 5 minutes to remove oil, and then rinse with deionized water.
[0075] (2) Roughening: Treat with potassium dichromate (24 g / L) and sulfuric acid (100 mL / L) at room temperature for 10 minutes. The degummed carbon fiber has fewer surface active functional groups, and roughening can change the state of the functional groups and increase the specific surface area of the carbon fiber. The roughened carbon fibers were taken out, and then the acidified carbon fibers were washed with distilled water with the aid of ultrasonic waves until the washed liquid was neutral.
[0076] (3) Neutralization: The acid remaining in the roughening process is neutr...
Embodiment 3
[0085] Step 1: Carbon Fiber Pretreatment
[0086] (1) Degumming: Put the carbon fiber in a muffle furnace and heat it at 400°C for 1 hour. After degumming, soak in absolute ethanol for 5 minutes to remove oil, and then rinse with deionized water.
[0087] (2) Roughening: Treat with potassium dichromate (20 g / L) and sulfuric acid (100 mL / L) at room temperature for 10 minutes. The degummed carbon fiber has fewer surface active functional groups, and roughening can change the state of the functional groups and increase the specific surface area of the carbon fiber. The roughened carbon fibers were taken out, and then the acidified carbon fibers were washed with distilled water with the aid of ultrasonic waves until the washed liquid was neutral.
[0088] (3) Neutralization: The acid remaining in the roughening process is neutralized with sodium hydroxide.
[0089] (4) Sensitization: Sensitization was treated with stannous chloride (14 g / L) and hydrochloric acid (40 mL / L) at ...
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