Electrical insulation compound adhesive for high voltage electrical apparatus
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A technology for high-voltage electrical appliances and adhesives, used in adhesives, adhesive types, organic insulators, etc.
Active Publication Date: 2009-02-18
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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Problems solved by technology
The performance indicators of the existing phenolic adhesives still cannot meet the above requirements, and there are still problem
Method used
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Embodiment 1
[0017] The composition of high voltage electrical insulation adhesive is as follows:
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Abstract
The invention provides a high-voltage electrical apparatus insulated adhesive, which comprises the following components by weight portion: 150 to 160 portions of bakelite, 30 to 40 portions of epoxide resin, 10 to 12 portions of methenamine, 100 to 110 portions of nitrile latex, 5 to 8 portions of 2-mercaptobenzothiazole zinc salt, 2 to 4 portions of accelerant PX, 2 to 4 portions of zinc naphthenate, 30 to 35 portions of colophony, 200 to 220 portions of benzene, 100 to 120 portions of acetone, 20 to 22 portions of toluene diisocyanate, and 50 to 80 portions of mica powder. The high-voltage electrical apparatus insulated adhesive has excellent bonding properties, ageing resistance and chemical mediator resistance as well as excellent insulating properties, which is applicable for bonding metal units, and in particular applicable for manufacturing of high-voltage electrical apparatuses and equipment.
Description
technical field [0001] The invention relates to an adhesive, especially a thermosetting adhesive which is used for bonding high-voltage electrical appliances and has good heat resistance and good insulation. Background technique [0002] Phenolic adhesives are adhesives that are mainly composed of phenolic resins (made by the reaction of phenol and formaldehyde). Due to different reaction conditions (with different additives), it can form thermoplastic resin or thermosetting resin. Phenolic adhesives have the characteristics of lower cost (lower than epoxy adhesives) and better heat resistance, but have the disadvantage of brittleness. For high-voltage electrical equipment, the working environment is high in temperature, highly corrosive, and requires high insulation levels. The performance indicators of the existing phenolic adhesives still cannot meet the above requirements, and there are problems in the bonding strength, toughness and aging resistance that need to be fu...
Claims
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Application Information
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