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High-performance metallized film capacitor encapsulating material

A metallized film and potting material technology, which is applied in the field of capacitors, can solve the problems of toughness and plasticity, easy brittleness, high viscosity, internal stress, and poor temperature and impact resistance, and achieve high toughness and plasticity, no internal stress, and stable electrical properties. Effect

Inactive Publication Date: 2017-03-29
ANHUI FEIDA ELECTRICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simply using commercial paraffin wax or microcrystalline wax has defects such as poor toughness and plasticity, brittleness and large shrinkage at low temperatures, while the performance of epoxy potting materials has many shortcomings in many places, such as: insufficient elasticity, high viscosity, hardening When there is a certain internal stress, it is easy to crack, and the temperature resistance is poor.

Method used

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  • High-performance metallized film capacitor encapsulating material

Examples

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Effect test

Embodiment 1

[0017] A high-performance potting material for metallized film capacitors, made of the following components in parts by weight: epoxy soybean oil 6, castor oil 15, polyisobutylene 20, modified salad oil 60, mica powder 16, glutamic acid 2 , polyvinyl alcohol resin 6, starch 6, soybean lecithin 3, latent curing agent 4, plasticizer 2, auxiliary agent 1; the auxiliary agent is made of the following ingredients in parts by weight: sodium polyacrylate 2, acetyl Methyl propionate 5, maltol 1; the mass ratio of the modified salad oil, polyisobutylene and latent curing agent is 15:5:1.

Embodiment 2

[0019] A high-performance potting material for metallized film capacitors, made of the following components in parts by weight: epoxy soybean oil 10, castor oil 18, polyisobutylene 30, modified salad oil 90, mica powder 19, glutamic acid 4 , polyvinyl alcohol resin 10, starch 8, soybean lecithin 5, latent curing agent 6, plasticizer 5, auxiliary agent 3; the auxiliary agent is made of the following ingredients in parts by weight: sodium polyacrylate 6, acetyl Methyl propionate 9, maltol 4; the mass ratio of the modified salad oil, polyisobutylene and latent curing agent is 15:5:1.

Embodiment 3

[0021] A high-performance potting material for metallized film capacitors, made of the following ingredients in parts by weight: epoxy soybean oil 4, castor oil 16, polyisobutylene 25, modified salad oil 75, mica powder 18, glutamic acid 3 , polyvinyl alcohol resin 7, starch 7, soybean lecithin 4, latent curing agent 5, plasticizer 3, auxiliary agent 2; the auxiliary agent is made of the following ingredients in parts by weight: sodium polyacrylate 4, acetyl Methyl propionate 6, maltol 3; the mass ratio of the modified salad oil, polyisobutylene and latent curing agent is 15:5:1.

[0022] In the above-mentioned embodiment:

[0023] Further, the modified salad oil is made of the following components in parts by weight: pepper oil 2, canola oil 1, grape seed oil 3, castor oil 12, butyrolactone 0.2, 2-propyl-thiophene 0.1, Methyl fiber 0.3, the preparation method of which is: mix pepper oil, canola oil, grape seed oil, and castor oil together according to their respective weight...

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Abstract

The invention discloses a high-performance metallized film capacitor encapsulating material. The high-performance metallized film capacitor encapsulating material is prepared from epoxidized soybean oil, castor oil, polyisobutene, modified salad oil, mica powder, glutamic acid, polyvinyl alcohol resin, starch, soybean lecithin, a latent curing agent, plasticizer and an auxiliary. The encapsulating material has good electrical performance, moisture resistance, fluidity, heat resistance, cold resistance and impact resistance and excellent dielectric insulating performance.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a potting material for high-performance metallized film capacitors. Background technique [0002] Capacitors have been widely used in the electrical field. In the production of metallized film capacitors, the main dielectric and the pores between the plates and the main dielectric are usually potted with a material to improve capacitance and insulation performance and improve partial discharge. and heat resistance. Simply using commercial paraffin wax or microcrystalline wax has defects such as poor toughness and plasticity, brittleness and large shrinkage at low temperatures, while the performance of epoxy potting materials has many shortcomings in many places, such as: insufficient elasticity, high viscosity, hardening When there is a certain internal stress, it is easy to crack, and the temperature resistance is poor. Contents of the invention [0003] The purpose of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/00C08L23/20C08L29/04C08L3/02C08K13/02C08K3/34C08K5/103H01G2/10H01G4/33
CPCC08L91/00C08L2201/08C08L2203/206C08L2205/025C08L2205/035H01G2/103H01G4/33C08L23/22C08L29/04C08L3/02C08K13/02C08K3/34C08K5/103
Inventor 胡忠胜华玲萍吴良军
Owner ANHUI FEIDA ELECTRICAL TECH CO LTD
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