What is the function of silanization?

Silanization treatment can eliminate the active groups (mainly silanol groups) on the surface of the carrier in gas chromatography and prevent the tailing in the analysis process.

Silanization treatment is a process of surface treatment of metal or nonmetal materials with organosilane aqueous solution as the main component.

Compared with traditional phosphating, silylation treatment has the following advantages:

1, no harmful heavy metal ions, no phosphorus, no need for heating.

2, the silane treatment process does not generate precipitation, the treatment time is short, and the control is simple.

3, the treatment steps are few, the surface adjustment process can be omitted, and the bath liquid can be reused. Effectively improve the adhesion of paint to the substrate.

4, can * * line processing iron plate, galvanized sheet, aluminum plate and other substrates.

However, as far as the domestic technology is concerned, it is not very mature and needs to be improved, especially in the selection of silane and additives.

Extended data processing flow

According to the different uses of silylation and plate treatment, it is divided into different technological processes. The treatment process is stricter than the previous phosphating.

(1) iron parts and galvanized parts

Pre-degreasing-degreasing-water washing-water washing-silanization-drying or air drying-post-treatment.

(2) Aluminum parts

Pre-degreasing-degreasing-water washing-water washing-glazing-water washing-silanization-drying or air drying-post-treatment.

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