A capacitor metallized film based on linear low-density polyethylene and its preparation method

Abstract

The invention discloses a capacitor metalized film adopting linear low-density polyethylene as a base body. The capacitor metalized film is characterized by comprises the following materials in parts by weight: 200 parts of linear low-density polyethylene, 2-3 parts of lignin, 1-2 parts of nano diatomite, 2-3 parts of dimethylaminoethyl methacrylate, 1-2 parts of glycol ether, 1-2 parts of ferrocene, 1-2 parts of polyvinyl alcohol, 1-2 parts of titanate coupling agent TMC-TTS and 5-6 parts of additive. The capacitor metalized film disclosed by the invention has the advantages that the processing process is simple, the contact resistance of the film capacitor manufactured by the capacitor metalized film is less, so that the characteristics of a product are good; due to addition of the additive, the blocking performance and the air tightness of the film are enhanced; the capacitor metalized film is good in pressure resistance and impact resistance, has the characteristics of high heat-sealing strength and good heat-sealing performance and is long in service life.

Description

technical field [0001] The invention relates to the field of capacitor manufacturing, in particular to a capacitor metallized film with linear low-density polyethylene as a matrix 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...

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