Corrosion-resistant metal surface silicane treating agent and preparation method

Abstract

The invention discloses a corrosion-resistant metal surface silicane treating agent. The corrosion-resistant metal surface silicane treating agent is characterized in that: each liter of a mixed solution which is prepared from the following components comprises the components in parts by weight (gram) of: 23-30 g of N-phenyl-3-aminopropyl trimethoxysilane, 21-26 g of carbamido propyl triethoxysilane, 180-210 g of a water-based nanometer zinc oxide material, 3-5 parts of sodium ethylenediamine teramethylene phosphonate, 3-4 g of 2-methyl-1,3-propylene glycol, 2-3 g of ethylene glycol monobutyl ether, 2-3 g of oxalic acid, 2-3 g of sodium monofluorophosphate, 1-2 g of tetrahydrofuran, 1-2 g of vanadium oxytrichloride, 0.8-1 g of plant ash, 0.6-0.8 g of tert-butyl hydroperoxide, and the balance of water. The water-based nanometer zinc oxide material prepared by the technology of the invention has high dispersion stability and efficient adhesiveness, and is uniformly coated on the metal surface to enable the metal to have high compactness and anti-ion permeability; and due to the addition of the auxiliary agents such as the sodium ethylenediamine teramethylene phosphonate, the corrosion-resistant metal surface silicane treating agent adds the compactness of a silciane absorption film, improves film forming quality, and is environment-friendly and free from pollution.

Description

technical field [0001] The invention mainly relates to a metal surface silane treatment agent and a preparation method thereof, in particular to a corrosion-resistant metal surface silane treatment agent and a preparation method thereof. Background technique [0002] In the field of metal surface treatment, although traditional phosphate conversion and chromate passivation surface treatment technologies can achieve good results, the waste liquid discharged during the treatment process contains heavy metal ions such as zinc, manganese, nickel, chromium and nitrous acid. Carcinogens such as salt are very serious to environmental pollution, and metal surface silanization treatment technology is considered to be expected to replace phosphate conversion treatment and chromate passivation treatment because it does not involve substances that are harmful to the environment, the production process has low energy consumption, and the technology has a wide range of applications...

AI Technical Summary

Problems solved by technology

[0002] In the field of metal surface treatment, although traditional phosphate conversion and chromate passivation surface treatment technologies can achieve good results, the waste liquid discharged during the treatment process contains heavy metal ions such as zinc, manganese, nickel, chromium and nitrous acid. Salt and other carcinogens are very serious environmental pollution, and metal surface silanization treatment technology is considered to be expected to replace phosphate conversion treatment and chromate passivation treatment because it does not involve substances harmful to the environment, the production process has low energy consumption, and the technology has a wide range of applications. Chemical treatment is the latest development direction of metal surface protection alone. In the existing technology, the film layer formed on the surface of metal workpieces treated with silane solution has uneven density, cavities, cracks, and weak adhesion to the metal body.