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Capacitor thin film containing modified sepiolite powder and preparation method thereof

A technology of capacitor film and sepiolite powder, which is applied in the direction of fixed capacitor dielectric and fixed capacitor parts, can solve the problems of large demand, high price, and the film is difficult to meet, and achieves high heat-sealing strength and heat-sealing performance. Good, enhance the effect of barrier and air tightness

Inactive Publication Date: 2013-05-15
TONGLING YIHENGDA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Embodiment 1

[0016] Embodiment 1: Containing the capacitor film of modified sepiolite powder, the parts by weight of its composition raw materials are: metallocene polypropylene resin 42, LDPE low-density polyethylene 38, homopolypropylene 12, epoxy linseed oil 4, polypropylene Vinyl alcohol 2.5, aluminum hydroxide 1.5, polyisobutylene 1.5, diatomaceous earth 10, ferrocene 1.5, poly-4-methyl-1-pentene 2.4, modified sepiolite powder 8.5, zeolite 4.3, antioxidant DSTP 1.3. Tris(2-ethylhexyl) acetyl citrate 1, dibutyl maleate 1, calcium stearate 4, N-(β-aminoethyl)-γ-aminopropyl trimethyl (B ) Oxysilane 2.8 and Modified Tree Ash 2.5.

[0017] The preparation method of the capacitor film containing modified sepiolite powder comprises the following steps:

[0018] (1) Weigh the diatomite according to the weight of the raw materials, first soak the diatomite in 20-25% hydrogen peroxide for 3-4 hours, roast it at 400-450°C for 3-4 hours, and grind it into 400-45 Mesh powder;

[0019] (2) Add e...

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Abstract

The invention discloses a capacitor thin film containing modified sepiolite powder and a preparation method thereof. The capacitor thin film containing modified sepiolite powder comprises the following raw materials in parts by weight: 40-45 of metallocene polypropylene resin, 35-40 of LDPE (Linear low density polyethylene), 10-15 of homo-polypropylene, 3-5 of epoxy linseed oil, 2-3 of polyvinyl alcohol, 1-2 of aluminum hydroxide, 1-2 of polyisobutylene, 8-12 of diatomite, 1-2 of ferrocene, 2.2-2.5 of poly-4-methyl-1-amylene, 7.5-9.5 of modified sepiolite powder, 3.5-5 of zeolite, 1.2-1.5 of antioxidant DSTP, 0.9-1.1 of acetylcitric acid tris(2-ethylhexyl) ester, 0.8-1.2 of di-n-butyl maleate, 3-5 of calcium stearate, 2.5-3 of N-(beta-aminoethyl)-gamma-aminopropyl trimethoxysilane (triethoxysilane), and 0.5-0.7 of modified trees ash. The preparation method disclosed by the invention is simple; and simultaneously, the diatomite, the modified nano-titanium dioxide and the modified trees ash are added to the raw materials so that the barrier property and air tightness of the thin film are improved, and the thin film has good resistance to pressure and impact resistance and simultaneously has the characteristics of high heat-seal strength and good heat sealing property.

Description

technical field [0001] The invention relates to a capacitor film material, in particular to a capacitor film containing modified sepiolite powder 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 films are difficult ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08L23/06C08L23/12C08L29/04C08L23/22C08L23/20C08K13/06C08K9/06C08K9/04C08K9/02C08K3/34C08K5/1515C08K3/22H01G4/18
Inventor 杜其信
Owner TONGLING YIHENGDA ELECTRONICS
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