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Enamelled wire coating and preparation method of same

An enameled wire and coating technology, applied in fire-resistant coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as many harmful substances and affect the health of operators, and achieve high solid content, high adhesion level, impact resistance. strong effect

Inactive Publication Date: 2017-12-22
WUXI YONGXING METAL HOSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many harmful substances in this coating re-welding, which directly affects the health of the operator.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An enameled wire coating, comprising the following components in parts by weight: 20 parts of diphenylmethane diisocyanate, 10 parts of ethanol, 25 parts of foamed aluminum, 12 parts of polyacetylamino acid ester, 25 parts of nano carbon, 12 parts of graphene, 12 parts of quartz powder, 1 part of imidazole, 1 part of buffer, 1 part of loosening agent, 1 part of castor oil. Wherein, the graphene porosity is 60%.

[0021] The preparation method of above-mentioned enameled wire coating, comprises the following steps:

[0022] Step 1, taking each component by weighing;

[0023] Step 2, put diphenylmethane diisocyanate, ethanol, aluminum foam, polyacetylamino acid ester, and imidazole into the reaction kettle, heat to 120°C and react for 20 minutes, then add nano-carbon and graphene and stir at a speed of 150rpm to obtain the first composition ;

[0024] Step 3: Add filler, buffer, loosening agent and castor oil to the first composition, adjust the viscosity to 2500cp aft...

Embodiment 2

[0026] An enameled wire coating, comprising the following components in parts by weight: 90 parts of diphenylmethane diisocyanate, 30 parts of ethanol, 32 parts of foamed aluminum, 20 parts of polyacetylamino ester, 27 parts of nano carbon, 20 parts of graphene, 12 parts of kaolin, 2 parts of imidazole, 3 parts of buffer, 2 parts of loosening agent, 5 parts of castor oil. Wherein, the graphene porosity is 60-70%. The molar ratio of the aluminum foam to ethanol is 1:2.

[0027] The preparation method of above-mentioned enameled wire coating, comprises the following steps:

[0028] Step 1, taking each component by weighing;

[0029] Step 2, put diphenylmethane diisocyanate, ethanol, aluminum foam, polyacetylamino acid ester, and imidazole into the reaction kettle, heat to 140°C and react for 30 minutes, then add nano-carbon and graphene and stir at 180rpm to obtain the first composition;

[0030] Step 3: Add filler, buffer, loosening agent and castor oil to the first composit...

Embodiment 3

[0032] An enameled wire coating, comprising the following components in parts by weight: 20-95 parts of diphenylmethane diisocyanate, 10-35 parts of ethanol, 25-35 parts of foamed aluminum, 12-28 parts of polyacetylamino acid ester, nano-carbon 25-35 parts, 12-23 parts of graphene, 12-34 parts of quartz powder, 1-4 parts of imidazole, 1-8 parts of buffer, 1-5 parts of loosening agent, 1-8 parts of castor oil.

[0033] Wherein, the graphene porosity is 70%.

[0034] The preparation method of above-mentioned enameled wire coating, comprises the following steps:

[0035] Step 1, taking each component by weighing;

[0036] Step 2: Put diphenylmethane diisocyanate, ethanol, aluminum foam, polyacetylamino acid ester, and imidazole into the reaction kettle, heat to 160°C and react for 40 minutes, then add nano-carbon and graphene and stir at a speed of 200rpm to obtain the first combination thing;

[0037] Step 3: Add filler, buffer, loosening agent and castor oil to the first com...

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Abstract

The invention discloses an enamelled wire coating and a preparation method of same. The coating includes, by weight, 20-95 parts of diphenylmethane diisocyanate, 10-35 parts of ethanol, 25-35 parts of foamed aluminum, 12-28 parts of polyacetyl amino acid ester, 25-35 parts of nano-carbon, 12-23 parts of graphene, 12-34 parts of filler, 1-4 parts of imidazole, 1-8 parts of a buffer agent, 1-5 parts of a loosening agent, and 1-8 parts of castor oil. The preparation method includes the steps of adding the diphenylmethane diisocyanate, ethanol, foamed aluminum, polyacetyl amino acid ester and imidazole into a reaction kettle, and heating the components to 120-160 DEG C to perform a reaction; adding the nano-carbon and the graphene and uniformly stirring the components to obtain a first composition; adding the filler, the buffer agent, the loosening agent and the castor oil, and stirring the components and regulating viscosity. Compared with similar products in the prior art, the enamelled wire coating employs environment-friendly components, has strong adhesion force and excellent electric performances, and is simple in the preparation method.

Description

technical field [0001] The invention belongs to the field of enameled wire coating preparation, and in particular relates to an enameled wire coating and a preparation method thereof. Background technique [0002] Enameled wire is an indispensable material in electronic products. Commonly used enameled wires include copper enameled wire, aluminum enameled wire, copper-clad aluminum enameled wire, etc., but no matter what kind of enameled wire must be coated with an insulating layer. At present, the commonly used coating material is mostly polyurethane paint. The polyurethane polymer structure of the paint film will decompose and break into small molecules under high temperature, and the small molecules will detach from the substrate of the enameled wire, so that the enameled wire can be welded. In practical applications, welding slag appears during welding, which can easily cause false welding and affect the use of the product. Therefore, need a kind of direct welding witho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/25C09D7/12
CPCC09D175/04C08K2201/011C08L2201/08C09D5/18H01B3/308
Inventor 王铮
Owner WUXI YONGXING METAL HOSE
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