Preparation of conductive gas-phase anti-rust membrane

Abstract

The invention discloses an electric conduction gas phase rust prevention film which can prevent static and rust. The film is obtained by ingredients such as polyolefin resin, superfine carbon black, a vapor phase inhibitor, chemical inhibitor 1010, light stabilizer 6911, aluminate coupling agent; the polyolefin resin comprises 95% of blending polyolefine (low density polyethylene: linearity low density polyethylene equals to 3:7) and 5% of polyethylene wax; ultrafine grinding and wind force screening are carried out on carbon black powder by a whirlwind mill to obtain the superfine carbon black, the fineness of which reaches 5000 mesh. The vapor phase inhibitor comprises ammonium molybdate 5-30%, sodium benzoate 2-10% , the mixture of hydroxy triazole 5-20%, decanedioic acid sodium 28-45%, oxygen absorbent 5-20%, chrome acid tert-butyl ester 15-35%, and aluminate coupling agent 1-2%; the oxygen absorbent is sodium hydrosulfite or green copperas. The main processing comprises: the solid constituents of the vapor phase inhibitor are ground and coupled; the vapor phase inhibitor and the polyolefin resin are coupled, blended and co-extruded; the superfine carbon black and the polyolefin resin are coupled, blended and co-extruded; a three-layer co-extrusion blown film device is used for putting the polyolefin resin containing the vapor phase inhibitor and the carbon black in a feeding hole for blow molding. The film has the advantages that (1) the film is suitable for the rust prevention of various metals such as various steel, copper, aluminum, chromeplate, does not have undesirable impact on other non-metal materials such as optical equipment, rubber materials, electronic devices and components, and has good compatibility; (2) the film can be suitable for rust prevention packaging of various electronic equipment; the surface resistivity of the packaging film can reach 10 omega; and has excellent static-free and magnetic prevention performances on built-in devices.

Description

technical field [0001] The invention relates to a conductive vapor phase antirust film, which belongs to the technical field of metal antirust. Background technique [0002] Vapor phase antirust film is a metal protective packaging material that has developed rapidly in recent years. The gas phase corrosion inhibitor contained in it can automatically volatilize to the metal surface, forming a protective layer on the metal surface to inhibit metal corrosion. It is of great significance to the metal processing industry. The appearance of vapor phase antirust film is a major event in the field of metal protection. Some people compare it to a "wet to dry" revolution in metal antirust technology. [0003] Today, with more and more electronic products, its complex circuit structure and rust prevention problems of metal frames are also highlighted. The commonly used method is aluminum-plastic film vacuum packaging. This method is more convenient for smaller products, but for power...

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Problems solved by technology

[0005] At present, the protective packaging of electronic products in China can only solve a certain aspect of the problem, either anti-rust or anti-static, and the method of anti-static and anti-rust is only aluminum-plastic film vacuum packaging, and this method has many disadvantages

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