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Impregnating resin for electric automobile motor, and preparation method of impregnating resin

A technology of impregnating resin and formula, which is used in the insulation impregnation treatment of motor and electrical winding coils, water-resistant impregnating resin, high heat resistance, oil resistance, and high paint volume. It can solve the complex and comprehensive process of ultraviolet radiation heat curing It is difficult to popularize and apply, and it affects the performance of impregnating resin, so as to avoid easy precipitation, low resin loss and high adhesion.

Active Publication Date: 2016-11-16
SUZHOU JUFENG ELECTRICAL INSULATION SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Invention patent (Application No. 201110240404.4) "Technology for Improving the Paint Hanging Volume of Low-Voltage Dispersed and Embedded Windings", the UV radiation heat curing process introduced is too complicated, and it is difficult to fully promote and apply
The impregnating resin can achieve a high paint hanging amount by adding nano-powder, but the addition of nano-powder has the problem that the powder is easy to precipitate and difficult to disperse, which ultimately affects the performance of the impregnating resin

Method used

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  • Impregnating resin for electric automobile motor, and preparation method of impregnating resin
  • Impregnating resin for electric automobile motor, and preparation method of impregnating resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Weigh 500g of vinyltrimethoxysilane and 20g of deionized water into a three-necked reaction flask, adjust the pH value of the system to 1 with HCl, raise the temperature at 60°C, and react for 3 hours. Add 216g of benzyl alcohol, 0.5g of hydroquinone, 0.22g of stannous chloride, slowly raise the temperature to 140°C, keep the temperature for 3 hours, vacuumize to remove the remaining methanol, end the reaction, cool to room temperature, and prepare hyperbranched polysiloxane alkyl.

[0030] (2) Add 300g of vinyltrimethoxysilane, 878g of hydroxypropyl methacrylate, 1g of hydroquinone, and 0.58g of stannous chloride into a three-necked reaction flask, heat up to 145°C, keep warm for 4 hours, and then vacuumize Remove excess methanol and cool to obtain an active diluent.

[0031] (3) Weigh 200g of high heat-resistant unsaturated polyester, 180g of hyperbranched polysiloxane, 330g of reactive diluent, 2.1g of BYK-431, 7g of dicumyl peroxide, and 0.35g of catechol at 45...

Embodiment 2

[0033] (1) Weigh 850g of vinyltrimethoxysilane and 41.3g of deionized water into a three-necked reaction flask, adjust the pH value of the system to 1.5 with HCl, raise the temperature at 58°C, and react for 3 hours. Add 195g of benzyl alcohol, 0.93g of hydroquinone, and 0.45g of stannous chloride, slowly raise the temperature to 140°C, keep the temperature for 3 hours, vacuumize to remove the remaining methanol, end the reaction, and cool to room temperature to obtain hyperbranched polysiloxane alkyl.

[0034] (2) Add 320g of vinyltrimethoxysilane, 860g of hydroxyethyl methacrylate, 1.1g of hydroquinone, and 0.45g of stannous chloride into a three-necked reaction flask, raise the temperature to 148°C, keep the temperature for 4 hours, and pump Excess methanol was removed in vacuo and cooled to obtain a reactive diluent.

[0035] (3) Weigh 260g of high heat-resistant unsaturated polyester, 190g of hyperbranched polysiloxane, 360g of reactive diluent, 3.24g of BYK-410, 8.5g of...

Embodiment 3

[0037] (1) Weigh 560g of vinyltrimethoxysilane and 31g of deionized water into a three-necked reaction flask, adjust the pH value of the system to 2 with HCl, raise the temperature at 55°C, and react for 3 hours. Add 230g of benzyl alcohol, 0.7g of hydroquinone, and 0.43g of stannous chloride, slowly raise the temperature to 140°C, keep the temperature for 3 hours, vacuumize to remove the remaining methanol, end the reaction, and cool to room temperature to obtain hyperbranched polysiloxane alkyl.

[0038] (2) Add 260g of vinyltrimethoxysilane, 684g of hydroxyethyl methacrylate, 0.95g of hydroquinone, and 0.39g of stannous chloride into a three-necked reaction flask, raise the temperature to 150°C, keep the temperature for 3 hours, and pump Excess methanol was removed in vacuo and cooled to obtain a reactive diluent.

[0039] (3) Weigh 250g of high heat-resistant unsaturated polyester, 170g of hyperbranched polysiloxane, 400g of reactive diluent, 1.28g of DeuRHeo 2810, 2g of BY...

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PUM

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Abstract

The invention relates to impregnating resin for an electric automobile motor, and a preparation method of the impregnating resin. The impregnating resin is prepared according to the following raw material formula in percentage by mass: 25 to 40% of high-heat-resistant unsaturated polyester, 20 to 40% of hyperbranched polysiloxane, 30 to 50% of a reactive diluent, 0.1 to 1% of a thixotropic agent, 0.08 to 3% of an initiator and 0.01 to 0.3% of a polymerization inhibitor. The impregnating resin disclosed by the invention has the characteristics of being simple in preparation technology, good in heat resistance, high in bonding strength, good in oil resistance, high in adhered lacquer quantity, non-toxic, safe, environmental-friendly, good in electric insulation performance, and the like, thus being suitable for conventional immersion, VI (Vacuum Impregnating) and VPI (Vacuum Pressure Impregnating) insulating treatment technologies.

Description

technical field [0001] The invention belongs to the field of materials, and specifically relates to an impregnating resin for an electric vehicle motor and a preparation method thereof, especially a non-VOC, non-toxic and environmentally friendly impregnating resin with high heat resistance, high paint hanging capacity, oil resistance and water resistance. It is used for insulation impregnation treatment of motor and electrical winding coils. Background technique [0002] As a new type of industry, electric vehicles have a broad space for development. The electric vehicle traction motor has the characteristics of high power, high temperature, frequent vibration, frequent start, acceleration, etc., and the insulating impregnated resin for it needs to have high heat resistance, high adhesion, high paint hanging capacity, oil resistance, water resistance, etc. characteristic. [0003] Existing impregnating resins generally have problems such as low paint hanging and poor heat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D183/07C08G77/38C08G77/20
CPCC08G77/20C08G77/38C08L2201/08C08L2203/20C09D5/18C09D167/06C08L83/04
Inventor 徐伟红周成夏宇
Owner SUZHOU JUFENG ELECTRICAL INSULATION SYST
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