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Capacitor aluminous shell film coating and preparation method thereof

A capacitor and aluminum shell technology is applied in the field of capacitor aluminum shell film coating and its preparation, which can solve the problems of poor temperature resistance and high production cost, and achieve the effects of reasonable formula, increased service life and simple preparation method.

Inactive Publication Date: 2013-06-19
TONGLING XINTAI ELECTRIC APP & CAPACITOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, this method only reduces the secondary pollution of chlorine-containing coatings, but there are still problems of poor temperature resistance and high production costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: Capacitor aluminum shell film coating, the weight parts of its constituent raw materials are: Composition A and composition B, described composition A: 40 parts of polyamide resin, 60 parts of acetone, polymethyl methacrylate 20 parts and 10 parts of attapulgite; the composition B: 20 ​​parts of phenolic resin, 5 parts of organic siloxane, 5 parts of organic silicon and 5 parts of straw ash.

[0012] The preparation method of film-coating paint for capacitor aluminum shell comprises the following steps:

[0013] (1) Weigh each raw material according to the weight of the constituent raw materials, add polyamide resin, glycerine, polymethyl methacrylate and attapulgite into the mixer, stir at room temperature for 30-45 minutes, and mix evenly to obtain the composition A, then add phenolic resin, organosiloxane, organosilicon and straw ash into the blender, stir at room temperature for 30-45 minutes, and mix evenly to obtain composition B;

[0014] (2) Add com...

Embodiment 2

[0016] Example 2: Capacitor aluminum shell film coating, the weight parts of its constituent raw materials are: Composition A and composition B, described composition A: polyamide resin 50 parts, acetriketone 70 parts, polymethyl methacrylate 30 parts and 15 parts of attapulgite; the composition B: 30 parts of phenolic resin, 10 parts of organosiloxane, 10 parts of organic silicon and 10 parts of straw ash.

[0017] The preparation method of film-coating paint for capacitor aluminum shell comprises the following steps:

[0018] (1) Weigh each raw material according to the weight of the constituent raw materials, add polyamide resin, glycerine, polymethyl methacrylate and attapulgite into the mixer, stir at room temperature for 30-45 minutes, and mix evenly to obtain the composition A, then add phenolic resin, organosiloxane, organosilicon and straw ash into the blender, stir at room temperature for 30-45 minutes, and mix evenly to obtain composition B;

[0019] (2) Add comp...

Embodiment 3

[0021] Example 3: Be coated with embodiment 1 and embodiment 2 capacitor film-coated aluminum shell paint, wherein curing temperature, time and the capacitor film-coated aluminum shell technical index that gained film-coated aluminum shell are made are:

[0022] Example 1 Example 2 Curing temperature (°C) 215 225 Curing time (s) 60 60 Requirement index meets the meets the aspect ratio 2:1 3:1

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PUM

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Abstract

The invention discloses a capacitor aluminous shell film coating and a preparation method thereof; the coating is obtained by mixing and stirring a composition A and a composition B in composition raw materials according to a certain weight ratio; the composition A comprises polyamide resin, triketone, polymethyl methacrylate and attapulgite; the composition B comprises phenolic resin, organosiloxane, organosilicon and straw ash. The coating of the invention has a reasonable formula, a simple preparation method, and good curing effect on capacitor aluminous shells, can effectively protect capacitors; the prepared film coating has heat resistance and wear resistance, and can increase the service life of capacitors.

Description

technical field [0001] The invention relates to a capacitor casing and a chemical composition, in particular to a capacitor aluminum casing coating and a preparation method thereof. Background technique [0002] With the advancement of technology in the electronics industry, the manufacturing technology of electronic circuit boards has also made great progress. In order to reduce the size of electronic products and reduce consumption, electrolytic capacitors, as one of the general components on electronic circuit boards, are not only important for their temperature resistance, The requirements for breakdown resistance are getting higher and higher, and the smaller the occupied area, the better. The occupied area of ​​electrolytic capacitors should be small. First, the aluminum case of the capacitor should have a high aspect ratio, and the occupied area should be small if the diameter of the capacitor is small; It is easy to be damaged and the service life is shortened. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D177/00C09D133/12C09D161/06C09D7/12H01G2/10
Inventor 孔祥新
Owner TONGLING XINTAI ELECTRIC APP & CAPACITOR