Silane surface treating agent and preparation method thereof

Abstract

The invention discloses a silane surface treating agent, which is prepared from the following raw materials by mass percent: 2-5% of hexafluorozirconic acid, 2-5% of hexafluorotitanic acid, 0.3-0.6% of silane coupling agent, 0.8-1.5% of zirconium oxychloride, 0.5-1% of citric acid and the balance of water. By adopting the silane surface treating agent disclosed by the invention, the sewage sludge treatment cost can be saved, consumption of raw water is saved, the silane surface treating agent can be used at normal temperature, a heating energy source is saved, the maintenance cost can be reduced, and the manpower cost is saved.

Description

technical field [0001] The invention relates to the field of metal surface treatment agents, in particular to a silane surface treatment agent and a preparation method thereof. Background technique [0002] With the maturity of the metal surface treatment process, the traditional phosphate conversion and chromate passivation surface treatment technology is gradually replaced by the environmental protection and energy-saving silanization treatment technology due to factors such as environmental pollution and easy harm to the human body. Silanization treatment is a process of surface treatment of metal or non-metal materials with organosilane aqueous solution as the main component. Compared with traditional phosphating, silanization treatment has the following advantages: no harmful heavy metal ions, no phosphorus, no need for heating. The silane treatment process does not produce sediment, the treatment time is short, and the control is simple. There are few processing ...

AI Technical Summary

Problems solved by technology

However, this patent has the following disadvantages: N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane accounts for an excessively large proportion in the formula composition, which will inevitably cause the cost of the product to be too high, resulting in a decline in market competitiveness. Satisfaction drops

However, this patent has the following disadvantages: the proportion of aminopropyltriethoxysilane and N-phenyl-3-aminopropyltrimethoxysilane in the formula is too large, which will inevitably cause the cost of the product to be too high and cause market competition. Decreased power, decreased customer satisfaction

But this patent has the following disadvantages: (1) The metal cleaner is an alkaline solution, so it cannot form a dense film on the surface of the workpiece to be treated, but can only form an anti-rust water film. After the washing process, the workpiece must return to rust

(2) The solubility of magnesium carbonate in the formula is extremely small in water, which affects the use effect

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