A metallized film for capacitors and a method of making
By combining modified polyacrylamide with nano-titanium dioxide, the adhesion between the metal and the polypropylene substrate is enhanced, solving the problem of island-like distribution of the metal vapor deposition layer. This results in high-quality metallized thin films, reduced power transmission losses, and improved electrical performance of capacitors.
CN120600526BActive Publication Date: 2026-06-12FOSHAN SHUNDE BEIJIAO HENGLI ELECTRIC APPLIANCE IND CO
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FOSHAN SHUNDE BEIJIAO HENGLI ELECTRIC APPLIANCE IND CO
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-12
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Figure SMS_1
Abstract
The application discloses a kind of capacitor with metallized film and preparation method, belong to capacitor technical field.It includes the following steps: preparation polypropylene film layer;Preparation medium base layer: S21, preparation polyacrylamide;S22, with formaldehyde, dimethylamine, polyacrylamide as raw material preparation amine methylated polyacrylamide;S23, preparation nanometer titanium dioxide;S24, with mercapto propyl trimethoxysilane, nanometer titanium dioxide as raw material preparation mercapto nanometer titanium dioxide;S25, utilize castor oil, mercapto nanometer titanium dioxide is carried out click chemistry reaction, and the modified castor oil is obtained;S26, with amine methylated polyacrylamide solution, modified castor oil as raw material preparation modified polyacrylamide;S26, the modified polyacrylamide is coated to the polypropylene film layer one side, hot-pressing, and the medium base layer is obtained;S3, with metal material plating to medium base layer forms metallized layer, i.e. capacitor with good conductive performance with metallized film is obtained.
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