Room temperature curing glass fiber weftless binding tape special for coal oil gas phase drying and preparation method thereof

Abstract

The invention provides a room temperature curing glass fiber weftless binding tape special for coal oil gas phase drying, which comprises the following components in parts by weight: 100 parts of epoxy resin, 12-15 parts of liquid nitrile rubber, 20-25 parts of polyvinyl formal, 40-50 parts of acetone, 10-15 parts of aluminum oxide powder, 1-2 parts of nano aluminum oxide, 0.5-2 parts of light calcium carbonate, 0.5-1.5 parts of kaolin, 0.1-0.5 part of fumed silica, 1.5-3 parts of zinc stearate, 0.2-0.3 part of 2-methyl-4-ethylimidazole and 1.5-2 parts of 2, 4, 6-tri (dimethylaminomethyl) phenol. According to the room-temperature curing glass fiber weftless binding tape special for coal oil gas phase drying and the preparation method thereof, the kaolin and the fumed silica are added, so that the adhesive has extremely excellent thixotropy, and the prepared room-temperature curing weftless binding tape does not drip in the binding process and the curing process and does not have after-tack after being heated; the light calcium carbonate is added into the raw materials, and in the using process, no matter before or after curing, the room-temperature curing weftless binding tape does not have powder falling.

Description

technical field [0001] The invention relates to the technical field of composite insulating materials, in particular to a room-temperature-cured glass fiber latitude-free binding tape for kerosene vapor-phase drying and a preparation method thereof. Background technique [0002] The traditional latitude-free tape is a strip-shaped insulating binding material with a certain width that is impregnated with treated unidirectionally arranged continuous twisted alkali-free glass fiber yarns impregnated with high-temperature-resistant thermosetting unsaturated polyester resin. [0003] Around the 1980s, most transformer manufacturing companies introduced the kerosene vapor phase drying process. In this process, after the iron core binding is completed, the body is moved into the kerosene vapor phase drying furnace at a furnace temperature of 60°C, and sprayed with atomized kerosene after 1-2 hours. The latitude-free tape is not cross-linked at this time, so the overall resin is not...

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Problems solved by technology

[0003] Around the 1980s, most transformer manufacturing companies introduced the kerosene vapor phase drying process. After the iron core binding was completed, the body was moved into kerosene at a furnace temperature of 60°C. Vapor phase drying furnace, spray atomized kerosene after 1-2 hours. The traditional latitude-free tape is not cross-linked at this time, so the overall resin is not resistant to kerosene elution. After long-term use of kerosene gas phase drying furnace, the resin eluted by kerosene forms Colloidal particles will block the oil circuit, pollute the equipment, and cause production accidents; so far, the solutions of various transformer manufacturing companies are to clean the kerosene pipelines, valves, and kerosene pools after the product is dried, and regularly replace the kerosene. cumbersome, labor-intensive, and high maintenance costs

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