Anti-aging aluminum alloy and preparation method thereof
An aluminum alloy, anti-aging technology, applied in the direction of anodic oxidation, coating, hyaluronic acid coating, etc., to achieve the effect of preventing electrochemical corrosion, good compatibility and high thermal stability
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Embodiment 1
[0032] In the preparation method of the modified boron nitride, the rotation speed of the stirrer in step S22 is 35000r / min.
[0033] In the preparation method of the modified boron nitride, the temperature of the vacuum drying oven in both step S21 and step S22 is 70° C., and the drying time is 12 hours.
[0034] Comparative example 1
[0035] A kind of anti-aging aluminum alloy, its preparation method comprises the following steps:
[0036] The volume ratio of perchloric acid and ethanol in the described perchloric acid ethanol solution is: 4:1;
[0037] The preparation method of described modified boron nitride comprises the following steps:
[0038] In the preparation method of the modified boron nitride, the speed of the mixer in step S22 is 25000r / min;
[0039] Comparative example 2
[0040] A kind of anti-aging aluminum alloy, its preparation method comprises the following steps:
[0041] The volume ratio of perchloric acid and ethanol in the described perchloric a...
Embodiment 2
[0050] The anti-aging ability of the aluminum alloy is tested by the constant current corrosion weight loss method, and the experimental conditions are: in the water environment of 75°C, 0.3A / cm 2 The current was charged at a constant current for 100 hours, and then compared using the weight loss method. The test results are shown in Table 1.
[0051] Table 1 Performance test results
[0052] In addition, it can also be seen from the test results of Examples 1-3 that different proportions of coating components can affect the anti-aging effect of the anti-aging aluminum alloy, and Example 1 is the best proportion.
[0053] From the test results of Example 1 and Comparative Example 1, it can be seen that the anti-aging ability of the aluminum alloy with anodic oxidation treatment is significantly improved compared with the untreated aluminum alloy.
[0054] From the test results of Example 1 and Comparative Example 2, it can be known that adding boron nitride to the coating, th...
Embodiment 3
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