Method for enhancing oxidation resistance of body material copper
A technology of anti-oxidation and reinforcing body is applied in the field of improving the anti-oxidation performance of bulk material copper, which can solve the problems of limited success and achieve the effects of low cost, simple operation and strong anti-oxidation ability.
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Embodiment 1
[0031] Embodiment 1: the preparation of Cu-TA
[0032] Put the deionized water into the three-type bottle, pass the nitrogen gas to the deionized water through the Xileike system for 1 hour, remove the impurity gas in the deionized water, and obtain nitrogen-saturated deionized water. Take 10 ml of nitrogen-saturated deionized water as the solvent, sodium citrate as the solute, prepare a sodium citrate solution with a concentration of 7.3 mmol per liter, and stir evenly. Cut the copper foil into 2×2cm 2 The square is mixed with 10mL sodium citrate solution and sealed in a 50ml stainless steel reaction kettle. Place the reaction kettle in a blast drying oven, heat it to 190°C within 40 minutes, and keep it at 190°C for 24 hours, and cool it down to room temperature naturally after the reaction. The copper foil was taken out from the reaction kettle, the free sodium citrate on the copper foil was washed with deionized water, and the surface was blotted dry with filter paper to...
Embodiment 2
[0034] Example 2: Test of antioxidant properties under alkaline conditions
[0035] In order to explore the antioxidant capacity of the product Cu-TA of Example 1 in a strong alkaline solution, the 2×2cm prepared in Example 1 2 Put Cu-TA in 0.1M NaOH solution and store at 25°C for 8 hours; take 2×2cm 2 The same operation was performed on the pure copper foil as a comparative experiment. Such as Figure 5 It is an optical photo of Cu-TA and pure copper foil placed in 0.1M NaOH solution for 8 hours at room temperature at 25°C for 8 hours. It can be seen that the surface of Cu-TA is still smooth and unoxidized, while the pure copper foil has been oxidized darken. Figure 6 Raman images of Cu-TA and untreated copper foil, Figure 6 The Raman spectrum of Cu-TA in the medium has no miscellaneous peaks, which can indicate that Cu-TA is not oxidized, Figure 6 The oxide diffraction peaks of CuO appear in Cu, indicating that the pure copper foil has been oxidized to form CuO. The...
Embodiment 3
[0036] Embodiment 3: Antioxidant property test in air
[0037] In order to explore the antioxidant capacity of Cu-TA, the product of Example 1, in the air, a 2×2cm 2 Put the Cu-TA in an open bottle, put it in a forced air drying oven, and store it at 160°C for 1 hour. Take 2×2cm 2 The same operation was performed on the pure copper foil as a comparative experiment. Figure 7 It is an optical photo after 1 hour. It can be seen that the surface of Cu-TA is still smooth and flat, and has not been oxidized, while the pure copper foil has been oxidized and blackened. Figure 8 Raman images of Cu-TA and pure copper foil, respectively, Figure 8 There is no miscellaneous peak in Cu-TA, which can explain that Cu-TA is not oxidized, Figure 8 The oxide diffraction peaks in the Cu Raman spectrum indicate that the pure copper foil has been oxidized to form CuO. The comparison between the two proves the strong oxidation resistance of Cu-TA.
[0038] In order to prove the persistence...
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