Sterilization type strippable high-molecular rust-preventing film with added chitosan

Abstract

The invention discloses a chitosan-added bactericidal peelable polymer antirust film, which is prepared from the following raw materials: aluminum isopropoxide, silane coupling agent KH560, tetraethyl orthosilicate, isostearic acid Monoglyceride, polyethylene glycol, methacryloxypropyltrimethoxysilane, polyvinyl alcohol, borax, chitosan, silver-loaded zirconium phosphate, silane coupling agent A151, glutaraldehyde, naphthenic acid Zinc, triethanolamine, benzotriazole, sodium lauryl sulfate, appropriate amount of lauryl dimethyl amine oxide, appropriate amount of nitric acid, appropriate amount of hydrochloric acid, appropriate amount of absolute ethanol, appropriate amount of acetic acid, appropriate amount of deionized water; the present invention The prepared antirust agent can form a thin film on the surface of the workpiece, which is antibacterial, hydrophobic, oleophobic, not easy to break, has good heat resistance and weather resistance, plays a good antirust and anticorrosion effect, and is easy to peel off later, which is worth promoting.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment agents, in particular to a chitosan-added bactericidal peelable polymer antirust film. Background technique [0002] According to statistics, every year in the world, steel products with a total weight equivalent to 10-20% of the annual metal content cannot be used due to corrosion, rust and other reasons. Therefore, people have adopted various anti-rust methods to avoid rust. Cut your losses. There are various kinds of antirust agents, among which sodium nitrite has been favored and widely used because of its excellent antirust performance and low price. , a lot of research and development work has been carried out at home and abroad, and a variety of alkyl, alkoxy, halo, naphthoic acids and their derivatives, nitrobenzoic acids, and borates, borates and molybdenum have been prepared. A new type of water-soluble rust inhibitor that replaces sodium nitrite with materials such as ...

AI Technical Summary

Problems solved by technology

[0003] In Guo Jun's article "The Development of PVA Water-Soluble Polymer Peelable Antirust Film", he added antirust agent and other additives to polyvinyl alcohol, heated it in a water bath until it was completely dissolved, and then used the coating fluid to dissolve it completely. The extension method uniformly coats it on the metal surface, heats and dries it in a drying oven to form a film, and uses the neutral salt spray test, water solubility test and electron microscope test to characterize the performance of the polyvinyl alcohol antirust packaging film. The results show that the PVA antirust film not only has good antirust performance, but also has good peelability and water solubility, which meets the characteristics of green packaging and has good application prospects. However, the article uses polyvinyl alcohol and polyvinyl alcohol The combination of ethylene glycol is used as the carrier film-forming agent of the anti-rust film...