Encapsulating material of capacitor

A technology for potting materials and capacitors, applied in the field of capacitors, can solve the problems affecting the service life of capacitors, not cold-resistant, inelastic, etc., and achieve the effect of improving adhesion, increasing elasticity and recovery, and high expansion capacity
CN106520050AInactive Publication Date: 2017-03-22ANHUI FEIDA ELECTRICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI FEIDA ELECTRICAL TECH CO LTD
Publication Date
2017-03-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an encapsulating material of a capacitor. The encapsulating material is prepared from raw materials by weight as follows: 3.0-6.0 parts of attapulgite, 8.0-10 parts of polyurethane and 3.0-4.0 parts of an organosilicon flame retardant. A preparation method of the encapsulating material comprises the steps of preparation of attapulgite modified polyurethane and preparation of the encapsulating material. The temperature of the encapsulating material can be changed with change of the temperature of the capacitor, and the temperature requirement in a wide range is met; besides, the material has good weather fastness and ageing-resistant performance and is long in service life, and the service property of the capacitor is greatly improved.
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Description

technical field

[0001] The invention relates to the field of capacitors, in particular to a capacitor potting material and a preparation method thereof. Background technique

[0002] Potting is to properly arrange, assemble, bond, connect and isolate the various parts of the components according to the requirements, so as to protect the various parts of the components. Its function is to strengthen the integrity of the device and improve the ability of external impact, waterproof and corrosion resistance. The potting materials of capacitors are mainly epoxy resin and oil. Epoxy resin is not cold-resistant, brittle, inelastic, and easy to crack after thermal expansion at high temperature. Oil often contains a certain amount of water, which will gradually penetrate into the capacitor core, seriously affecting the service life of the capacitor. Contents of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provi...

Claims

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