Adhesive, preparation method thereof, and epoxy glass fabric prepared from adhesive

A technology of epoxy glass and adhesive, applied in the direction of adhesive, epoxy resin glue, novolac epoxy resin adhesive, etc., can solve the problems of difficult edge trimming, difficult storage, hard and brittle, etc., and achieve easy Effects of storage, ease of procurement, and improved heat resistance

Active Publication Date: 2010-04-21
CHINA XIDIAN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the process of using the existing gray cloth products, the electric motor factory found that: the gray cloth products in use are hard and difficult to operate and use; they are hard and brittle after processing and forming, and it is difficult to perform subsequent trimming; the gray cloth products are easy to stick during storage and are not easy to store; Easy to drop rubber powder, pollute the environment and affect the health of operators

Method used

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  • Adhesive, preparation method thereof, and epoxy glass fabric prepared from adhesive
  • Adhesive, preparation method thereof, and epoxy glass fabric prepared from adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation of adhesive and epoxy glass gray cloth in the present embodiment is specifically carried out according to the following steps:

[0024] 1) Preparation of curing agent for adhesive:

[0025] First, add tung oil with a mass fraction of 10% into the reactor, start stirring and turn on the steam to raise the temperature. When the temperature rises to 70°C, add maleic anhydride with a mass fraction of 3%, continue to heat up to 100°C, and turn off the steam. The temperature of the material is raised to 148°C by itself, and after 60 minutes of heat preservation reaction, it is cooled to below 80°C to obtain a resin for use;

[0026] Secondly, add toluene with a mass fraction of 14% in the empty reactor, start stirring, then add bismaleimide resin with a mass fraction of 5%, turn on the steam and raise the temperature to 110 ° C, and keep it at this temperature for 50 minutes. , then add the resin prepared above, heat up to 90°C again, and keep it warm for 50 ...

Embodiment 2

[0032] The preparation of adhesive and epoxy glass gray cloth in the present embodiment is specifically carried out according to the following steps:

[0033] 1) Preparation of curing agent for adhesive:

[0034] First, add tung oil with a mass fraction of 10.5% into the reactor, start stirring and turn on the steam to raise the temperature. When the temperature rises to 80°C, add maleic anhydride with a mass fraction of 2%, continue to heat up to 120°C, and turn off the steam. The temperature of the material is raised to 152°C by itself, and after 60 minutes of heat preservation reaction, it is cooled to below 80°C to obtain a resin for use;

[0035] Secondly, add toluene with a mass fraction of 14.2% in the empty reactor, start stirring, then add bismaleimide resin with a mass fraction of 5.3%, turn on the steam and raise the temperature to 120°C, and keep it at this temperature for 70 minutes. , then add the resin prepared above, heat up to 91°C again, and keep it warm for...

Embodiment 3

[0041] The preparation of adhesive and epoxy glass gray cloth in the present embodiment is specifically carried out according to the following steps:

[0042] 1) Preparation of curing agent for adhesive:

[0043] First, add tung oil with a mass fraction of 11% into the reactor, start stirring and turn on the steam to raise the temperature. When the temperature rises to 75°C, add maleic anhydride with a mass fraction of 2.5%, continue to heat up to 110°C, and turn off the steam. The temperature of the material is raised to 150°C by itself, and after the heat preservation reaction for 60 minutes, it is cooled to below 80°C to obtain the resin, which is ready for use;

[0044] Secondly, add toluene with a mass fraction of 14.2% in the empty reactor, start stirring, then add bismaleimide resin with a mass fraction of 5%, turn on the steam and raise the temperature to 115°C, and keep it at this temperature for 60 minutes. , then add the resin prepared above, heat up to 94°C again,...

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Abstract

The invention discloses an adhesive, a preparation method thereof, and an epoxy glass fabric prepared from the adhesive. The adhesive comprises the following components in percentage by mass: 10 to 11 percent of tung oil, 2 to 3 percent of maleic anhydride, 38 to 40 percent of methylbenzene, 5 to 6 percent of bismaleimide resin, 17 to 19 percent of 601 epoxy, 11 to 12 percent of novolac epoxy and 15 to 16 percent of filler. The improvement on the formula design of the adhesive and the preparation method is carried out by adopting a plurality of technical means, and alkyd resin is mainly modified to improve the heat resistance; and a toughening agent, a cosolvent and a latent curing agent are selected, and all the selected component materials have moderate cost and are easy to purchase. The epoxy glass fabric product produced by the method is difficult to adhere and is easy to store in the storing process, does not fall off rubber powder or pollute environment, and has no influence on the health of operators.

Description

technical field [0001] The invention belongs to the field of insulating materials, and relates to an adhesive and an epoxy glass gray cloth, in particular to an adhesive and a preparation method thereof, and an epoxy glass used for inter-turn insulation of motor magnetic pole coils prepared with the adhesive gray cloth. Background technique [0002] During the process of using the existing gray cloth products, the electric motor factory found that: the gray cloth products in use are hard and difficult to operate and use; they are hard and brittle after processing and forming, and it is difficult to perform subsequent trimming; the gray cloth products are easy to stick during storage and are not easy to store; It is easy to drop rubber powder, pollute the environment and affect the health of operators. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcoming of prior art, provide a kind of adhesive and its prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J163/04D06M15/55H01B3/40
Inventor 惠前进许凤辉李鸽
Owner CHINA XIDIAN GRP CO LTD
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