Environment friendly metal surface treatment agent and application thereof
A metal surface treatment, environmentally friendly technology, applied in the direction of metal material coating process, etc., can solve the problems of environmental burden, phosphorus and heavy metal nickel pollution, increase the cost of wastewater treatment, etc., and achieve the effect of slow rust and low COD value.
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Embodiment 1
[0032] 1. Prepare the template:
[0033] A commercially available Q235 cold-rolled steel plate (produced by Shanghai Baosteel) with a specification of (170mm×100mm×0.8mm) was used as the metal model for implementation.
[0034] 2. Degreasing pretreatment:
[0035] Prepare degreasing solution according to mass percentage: 1% NaOH, 0.5% Na 2 CO 3, 0.1% EDTA, 1% NP-10, the balance is water. Soak the metal sample at 50°C for 3 minutes.
[0036] 3. Washing treatment after degreasing pretreatment:
[0037] Soak the degreased metal sample in tap water for 1 minute.
[0038] 4. Composite surface treatment agent treatment:
[0039] Prepare an environment-friendly metal surface treatment agent, using water as a solvent, and the composition of raw materials is as follows:
[0040]
[0041] During preparation, the components were dispersed in water and dissolved, and the pH value of the prepared composite surface treatment agent was adjusted to 4.50 with aqueous sodium bicarbona...
Embodiment 2
[0047] Prepare an environment-friendly metal surface treatment agent, using water as a solvent, the composition is as follows:
[0048]
[0049] During preparation, the components are dispersed in water for dissolution, and the pH value of the prepared composite surface treatment agent is adjusted to 4.80 by using aqueous sodium bicarbonate solution.
[0050] The test sample was obtained according to the process of Example 1, and the specific detection performance of the test sample is shown in Table 1.
Embodiment 3
[0052] Prepare an environment-friendly metal surface treatment agent, using water as a solvent, and the composition of raw materials is as follows:
[0053]
[0054]
[0055] During preparation, the components are dispersed in water for dissolution, and the pH value of the prepared composite surface treatment agent is adjusted to 4.50 by using aqueous sodium bicarbonate solution.
[0056] The test sample was obtained according to the process of Example 1, and the specific detection performance of the test sample is shown in Table 1.
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