A metal surface silane treatment agent containing diethanolamine and preparation method thereof

Abstract

The invention discloses a metal surface silicane treating agent containing diethanol amine. The metal surface silicane treating agent containing the diethanol amine is characterized by being a mixed solution which is prepared from following compositions of, by weight part ratio in every liter of the mixed solution, 28-35 parts of 1,2-bis (triethoxy silicon) ethane, 32-40 parts of gamma-aminopropyl triethoxy silicane, 100-160 parts of aqueous nanometer zinc oxide material, 2-3 parts of allyl alcohol, 1-2 parts of ethylene glycol, 2-3 parts of sodium tripolyphosphate, 2-4 parts of propylene glycol, 2-3 parts of zirconium tetrafluoride, 2-3 parts of diethanol amine, 2-3 parts of ammonium chloride, 1-2 parts of diethylene glycol monobutyl ether, 1-2 parts of trimethylolpropane, 0.3-0.5 part of sodium dodecyl benzene sulfonate, and the balance water. The metal surface silicane treating agent containing the diethanol amine has the advantages that, a silicane coating formed on the surface of metal after the metal is processed by using the surface silicane treating agent has good decay resistance, service life of the metal is prolonged, and a compact and firm coating is formed on the surface of the metal by combining the 1,2-bis (triethoxy silicon) ethane and the gamma-aminopropyl triethoxy silicane for use.

Description

technical field [0001] The invention mainly relates to a metal surface silane treatment agent and a preparation method thereof, in particular to a metal surface silane treatment agent containing diethanolamine 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. 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. Chemical treatment is the latest development direction of metal surface protection alone. In the existing technology, the film formed on the surface of metal workpieces treated with silane solution has uneven density, holes, cracks, and weak adhesion to the metal body.