Metallized film capacitor encapsulation wax

A metallized film and capacitor technology, applied in the field of capacitor potting, can solve the problems of ductility and plasticity, easy to be brittle, easy to leak, large shrinkage, etc., to achieve the effect of improving ductility and plasticity, improving high temperature resistance, and increasing service life

Inactive Publication Date: 2017-05-17
宁国市大荣电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simply using commercial paraffin or microcrystalline wax has defects such as poor ductility and plasticity, which is easy to be brittle at low temperature and has relatively large shrinkage. The use of oil has large losses and is easy to leak, which does not meet the requirements of the current production plant.

Method used

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  • Metallized film capacitor encapsulation wax

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A metallized film capacitor potting wax, which is made of the following components in parts by weight: modified petroleum wax 80, nanometer zinc oxide 2, polychlorotrifluoroethylene 10, polyvinyl alcohol 8, and coconut acid monoethanolamide 23 , rosin 2, methyl cellulose 4, mica powder 12, medical stone powder 12.

Embodiment 2

[0015] A metallized film capacitor potting wax, made of the following components in parts by weight: modified petroleum wax 100, nano-zinc oxide 4, polychlorotrifluoroethylene 16, polyvinyl alcohol 10, coconut oil monoethanolamide 25 , rosin 5, methyl cellulose 7, mica powder 14, medical stone powder 14.

Embodiment 3

[0017] A metallized film capacitor potting wax, made of the following components in parts by weight: modified petroleum wax 90, nano-zinc oxide 3, polychlorotrifluoroethylene 14, polyvinyl alcohol 9, coconut acid monoethanolamide 24 , Rosin 3, methyl cellulose 5, mica powder 13, medical stone powder 13.

[0018] In the above-mentioned embodiment:

[0019] The modified petroleum wax is made of the following components in parts by weight: petroleum wax 40, polyethylene wax 2, maleic acid 0.4, and its preparation method is: adding polyethylene wax and petroleum wax to the reactor and heating To melting, add maleic acid slowly, stir while heating, until mixing evenly, start compressor, feed oxygen in the reactor, after 3 hours, close compressor, stop feeding of oxygen, from reactor The reactant is taken out from the medium and dried to obtain the desired modified petroleum wax.

[0020] The particle size of the nano zinc oxide is 28nm.

[0021] The particle size of the mica pow...

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Abstract

The invention discloses metallized film capacitor encapsulation wax which is prepared from the following components: modified petroleum wax, nano-zinc oxide, polytrifluorochloroethylene, polyvinyl alcohol, coconut oil monoethanolamide, rosin, methylcellulose, mica powder and medical stone powder. The encapsulation wax is excellent in electrical property, high in moisture resistance, flowability, heat resistance and cold resistance, and good in usability, and can guarantee the stability of the electrical property of a metallized film capacitor.

Description

technical field [0001] The invention relates to the technical field of capacitor potting, in particular to a metallized film capacitor potting wax. 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 ductility and plasticity, which is easy to be brittle at low temperature and has large shrinkage. The use of oil has large loss and is easy to leak, which does not meet the requirements of current production plants. Contents of the invention [0003] The purpose of the present invention is to provide a metallized film capacitor potting wax, achieved by the following technical solutions: [0004] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/06C08L27/12C08L29/04C08L1/28C08K13/02C08K3/22C08K3/34C08K5/20
CPCC08L91/06C08K2201/003C08K2201/011C08L2201/08C08L2203/206C08L2205/035C08L27/12C08L29/04C08L1/28C08K13/02C08K2003/2296C08K3/34C08K3/346C08K5/20
Inventor 周继平
Owner 宁国市大荣电器有限公司
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