Polyester material used for capacitor thin film

A technology of capacitor film and polyester material, applied in the field of electronic components, can solve the problems of reduced pressure resistance, increased self-healing point, shortened lifespan, etc., and achieves the effects of improving tensile resistance, prolonging service life, and improving high temperature resistance.

Inactive Publication Date: 2015-08-05
苏州靖羽新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the film capacitor is used under high-frequency or high-pulse conditions, the pulse current passing through the capacitor will cause the capacitor itself to heat up and the temperature will rise, resulting in problems such as increased self-healing points, reduced withstand voltage, and shortened life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In this embodiment, a polyester material for a capacitor film is made of the following components in parts by weight: 100 parts of polyester, 20 parts of polyimide, 30 parts of polytetrafluoroethylene, 1 part of aluminum hydroxide, liquid 10 parts of paraffin, 2 parts of titanium dioxide, 8 parts of glass fiber, 4 parts of activated carbon, 0.5 parts of dibutyl phthalate, 2 parts of modified starch and 3 parts of heat-resistant additive.

[0019] Wherein, the parts by weight of the raw materials of the heat-resistant auxiliary agent are respectively 15 parts of zinc methacrylate, 2 parts of clay, 4 parts of silicon rubber and 10 parts of silicon carbide; the heat-resistant auxiliary agent is obtained through the following steps: Mix zinc methacrylate, clay, silicone rubber and silicon carbide evenly, wet ball mill, the ratio of material to ball is 1:2:4, the slurry obtained after ball milling is directly sintered, and the temperature is rapidly raised to 1000°C, and then...

Embodiment 2

[0022] In this embodiment, a polyester material for a capacitor film is made of the following components in parts by weight: 120 parts of polyester, 30 parts of polyimide, 20 parts of polytetrafluoroethylene, 4 parts of aluminum hydroxide, liquid 5 parts of paraffin, 8 parts of titanium dioxide, 2 parts of glass fiber, 1 part of activated carbon, 1.8 parts of dibutyl phthalate, 6 parts of modified starch and 8 parts of heat-resistant additive.

[0023] Wherein, the parts by weight of the raw materials of the heat-resistant auxiliary agent are respectively 15 parts of zinc methacrylate, 8 parts of clay, 1 part of silicon rubber and 5 parts of silicon carbide; the heat-resistant auxiliary agent is obtained through the following steps: Mix zinc methacrylate, clay, silicone rubber and silicon carbide evenly, wet ball mill, the ratio of material to ball is 1:2:4, the slurry obtained after ball milling is directly sintered, and the temperature is rapidly raised to 1000°C, and then sl...

Embodiment 3

[0026] In this embodiment, a polyester material for a capacitor film is made of the following components in parts by weight: 108 parts of polyester, 22 parts of polyimide, 28 parts of polytetrafluoroethylene, 2 parts of aluminum hydroxide, liquid 8 parts of paraffin, 5 parts of titanium dioxide, 5 parts of glass fiber, 2 parts of activated carbon, 1.6 parts of dibutyl phthalate, 4 parts of modified starch and 6 parts of heat-resistant additive.

[0027] Wherein, the parts by weight of the raw materials of the heat-resistant auxiliary agent are respectively 11 parts of zinc methacrylate, 4 parts of clay, 2 parts of silicon rubber and 6 parts of silicon carbide; the heat-resistant auxiliary agent is obtained through the following steps: Mix zinc methacrylate, clay, silicone rubber and silicon carbide evenly, wet ball mill, the ratio of material to ball is 1:2:4, the slurry obtained after ball milling is directly sintered, and the temperature is rapidly raised to 1000°C, and then ...

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Abstract

The invention discloses a polyester material used for capacitor thin films. The polyester material is prepared from following components, by weight: 100-120 parts of polyester, 20-30 parts of polyimide, 20-30 parts of polytetrafluoroethylene, 1-4 parts of aluminum hydroxide, 5-10 parts of liquid paraffin, 2-8 parts of titanium dioxide, 2-8 parts of glass fibers, 1-4 parts of activated carbon, 0.5-1.8 parts of dibutyl phthalate, 2-6 parts of modified starch and 3-8 parts of a heat-insulating additive. The components of the polyester material used for capacitor thin films achieves a cooperative effect, with the polyester as the main raw material with assistance of the polyimide, the polytetrafluoroethylene, the aluminum hydroxide, the liquid paraffin, the titanium dioxide, the glass fibers, the activated carbon, the dibutyl phthalate, the modified starch and the heat-insulating additive, advantages of the polyester are fully achieved and the polyester material is increased in high-temperature resistance and is prolonged in service life.

Description

Technical field: [0001] The invention relates to a polyester material for capacitor films, belonging to the technical field of electronic components. 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. Capacitors made of polypropylene films have low thermal shrinkage, stable performance, high temperature resistance, high pressure resistance, and prevent breakdown. And other significant advantages, making the use of capacitors made of polypropylene film more and more widely. The capacitor core is the heart of the capacitor, so the capacitor manufacturing core material must have high frequency resistance, high temperature resistance, and a high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L79/08C08L27/18C08L91/06C08L83/04C08L51/02C08K13/04C08K7/14C08K3/22C08K3/04C08K5/12C08K5/098C08K3/34C08F251/00C08F220/06
Inventor 钱玉珠
Owner 苏州靖羽新材料有限公司
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