Two-way stretchable polyethylene capacitor metalized film and preparation method thereof

Abstract

The invention discloses a two-way stretchable polyethylene capacitor metalized film. The two-way stretchable polyethylene capacitor metalized film is characterized by being prepared from the following raw materials in parts by weight: 200 parts of metallocene linear low-density polyethylene, 1-2 parts of alums, 1-2 parts of magnesium oxide, 3-4 parts of sucrose fatty acid ester, 2-3 parts of di-n-butyl phosphate, 1-2 parts of menthol, 1-2 parts of mandarin oil, 1-2 parts of benzotriazole, 2-3 parts of melamine and 5-6 parts of auxiliary agent. The two-way stretchable polyethylene capacitor metalized film is simple in processing process and the contact resistance of a thin film capacitor produced by use of the two-way stretchable polyethylene capacitor metalized film is small, so that the property of a product is good. The two-way stretchable polyethylene capacitor metalized film has good high heat sealing strength and good high-temperature resistance; impurities in the raw materials are removed by filtering so that the performance of the raw materials is good, the rejection rate of a thin film is reduced and the thin film is not easy to break; corona treatment is adopted so that the voltage resisting strength of the thin film is improved and the thin film is prevented from being broken down.

Description

technical field [0001] The invention relates to the field of capacitor manufacturing, in particular to a biaxially stretchable polyethylene capacitor metallized film and a preparation method thereof. Background technique [0002] Film capacitors use metal foil as an electrode, which is stacked with plastic films such as polyethylene, polypropylene, polystyrene or polycarbonate from both ends, and wound into a cylindrical capacitor; in all Among the plastic film capacitors, the characteristics of polypropylene (PP) capacitors and polystyrene (PS) capacitors are the most significant. Of course, the price of these two capacitors is also relatively high. The quality of the capacitor film directly affects the service life and product performance of the capacitor. The demand for films is large and there are many types. It is difficult to meet the requirements of the market by using a single raw material to produce films, but each raw material has its shortcomings, so the produced ...

AI Technical Summary

Problems solved by technology

[0002] Film capacitors use metal foil as an electrode, which is stacked with plastic films such as polyethylene, polypropylene, polystyrene or polycarbonate from both ends, and wound into a cylindrical capacitor; in all Among the plastic film capacitors, the characteristics of polypropylene (PP) capacitors and polystyrene (PS) capacitors are the most significant. Of course, the price of these two capacitors is also relatively high. The quality of the capacitor film directly affects the service life and product performance of the capacitor. The demand for films is large and there are many types. It is difficult to meet the requirements of the market by using a single raw material to produce films, but each raw material has its own shortcomings, so the produced films are difficult to meet the needs of various situations