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Heatproof flame-retardant insulating paint, and preparation method thereof

An insulating paint, heat-resistant technology, used in coatings, fire-retardant coatings, etc., to achieve the effects of improving flame retardancy and heat resistance, fast film formation, and avoiding dry cracking of coatings

Active Publication Date: 2019-05-03
苏州远卓科技信息有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat-resistant and flame-retardant properties of the insulating varnish prepared by these preparation methods are average, but with the advancement of science and technology, the use of high-power electrical appliances has increased significantly, the demand for power has increased, and power safety has received more and more attention. High-performance heat-resistant insulating paint is imminent

Method used

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  • Heatproof flame-retardant insulating paint, and preparation method thereof
  • Heatproof flame-retardant insulating paint, and preparation method thereof
  • Heatproof flame-retardant insulating paint, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A heat-resistant and flame-retardant insulating varnish, comprising the following materials in parts by weight:

[0025]

[0026]

[0027] The preparation method of the above-mentioned heat-resistant and flame-retardant insulating varnish is characterized in that it is prepared by the following method:

[0028] (1) First react 50 parts by weight of epoxy resin, 15 parts by weight of maleic anhydride, 15 parts by weight of acrylic alkyd resin and 50 parts by weight of n-butanol under the protection of an inert gas at 110°C for 1 hour, then add 50 parts by weight of High-speed centrifugal dispersion with deionized water to obtain epoxy prepolymer emulsion;

[0029] (2) under the inert gas environment of 70 ℃, the epoxy prepolymer emulsion that above-mentioned step gained is dripped into 5 weight parts N-(2,4,6-tribromophenyl) maleimide at a uniform speed, and then Constant temperature reaction for 1 hour;

[0030] (3) At 110°C, 5 parts by weight of phenyl methacry...

Embodiment 2

[0033] A heat-resistant and flame-retardant insulating varnish, comprising the following materials in parts by weight:

[0034]

[0035]

[0036] The preparation method of the above-mentioned heat-resistant and flame-retardant insulating varnish is characterized in that it is prepared by the following method:

[0037] (1) First react 50 parts by weight of epoxy resin, 15 parts by weight of maleic anhydride, 15 parts by weight of acrylic alkyd resin and 50 parts by weight of n-butanol under the protection of an inert gas at 110°C for 1 hour, then add 50 parts by weight of High-speed centrifugal dispersion with deionized water to obtain epoxy prepolymer emulsion;

[0038] (2) under the inert gas environment of 70 ℃, the epoxy prepolymer emulsion that above-mentioned step gained is dripped into 5 weight parts N-(2,4,6-tribromophenyl) maleimide at a uniform speed, and then Constant temperature reaction for 1 hour;

[0039] (3) At 110°C, 6.5 parts by weight of phenyl methac...

Embodiment 3

[0042] A heat-resistant and flame-retardant insulating varnish, comprising the following materials in parts by weight:

[0043]

[0044] The preparation method of the above-mentioned heat-resistant and flame-retardant insulating varnish is characterized in that it is prepared by the following method:

[0045] (1) First react 50 parts by weight of epoxy resin, 15 parts by weight of maleic anhydride, 15 parts by weight of acrylic alkyd resin and 50 parts by weight of n-butanol under the protection of an inert gas at 110°C for 1 hour, then add 50 parts by weight of High-speed centrifugal dispersion with deionized water to obtain epoxy prepolymer emulsion;

[0046] (2) under the inert gas environment of 70 ℃, the epoxy prepolymer emulsion that above-mentioned step gained is dripped into 5 weight parts N-(2,4,6-tribromophenyl) maleimide at a uniform speed, and then Constant temperature reaction for 1 hour;

[0047] (3) At 110°C, 8 parts by weight of phenyl methacrylate, 0.5 pa...

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Abstract

The invention discloses a heatproof flame-retardant insulating paint, and a preparation method thereof. The heatproof flame-retardant insulating paint contains epoxy resin, maleic anhydride, acrylic alkyd resin, a fire retardant, a flame resistance accelerant, and various auxiliary agents; the weight ratio of the fire retardant to the flame resistance accelerant is controlled to be (5-8) : (5-8).Epoxy resin is taken as a base material, N-(2,4,6-tribromophenyl) maleimide is introduced onto epoxy resin chains as a fire retardant, phenyl methacrylate is added into an obtained system as a flame resistance accelerant, a polymer containing unsaturated double bonds is subjected to high temperature cracking in the air to form a high temperature resistance anti-oxidant carbon layer, and cracking of the fire retardant at high temperature is promoted; the synergistic effect is capable of improving system flame resistance and heat resistance effectively, reducing system halogen ratio effectivelyat the same time, and reducing pollution; maleic anhydride and acrylic alkyd resin are introduced into the epoxy resin system, so that insulating paint toughness and hydrophilic performance are improved greatly with protection of fire retardant chains.

Description

technical field [0001] The invention relates to the field of functional coatings, in particular to a heat-resistant and flame-retardant insulating varnish coated on the surface of a motor. Background technique [0002] Insulating varnish, also known as insulating paint, is a special functional paint based on high molecular polymers, which can be cured into an insulating film or an insulating overall functional paint under certain conditions; insulating materials are indispensable materials in electrical equipment. Known as the "heart of the motor", it plays a key role in the economic and technical indicators and operating life of electrical equipment. Insulating varnish is easy to pour and use. It is often used for bonding, sealing and potting of electronic components and optoelectronic devices. After curing, it forms a dense whole and improves its insulation, mechanical properties, flame retardancy and heat resistance. For motor insulating varnish, high temperature resista...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D5/25C09D5/18C09D7/63C09D7/65C08F283/01C08F290/06C08F290/14C08G59/14
Inventor 王奎王艳慧
Owner 苏州远卓科技信息有限公司
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