Preparation method of high-temperature-resistant fireproof bushing for cable

A fire-resistant casing and high-temperature-resistant technology, which is applied in the direction of fire-resistant coatings, anti-corrosion coatings, and coatings, and can solve problems such as safety threats, secondary fires, and inability to meet high-temperature resistance

Active Publication Date: 2020-11-20
ANHUI HAOTIAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing bushings often lack the ability to resist high temperatures. In some special environments, they still cannot meet the requirements of high temperature resistance. At th

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing a high-temperature-resistant fireproof casing for cables, comprising the following steps:

[0028] S1. Pickle the illite slag powder, then add it to the mixture of ethanol and water and stir evenly, add silane coupling agent KH-590, adjust the pH value to 4, stir and react for 10 hours, wash with water until neutral after the reaction, and filter , drying to obtain material A;

[0029] S2. Mix 2-propenylphenol, 5-fluoro-2-benzidine, paraformaldehyde and 1,4-dioxane evenly, heat to reflux under the protection of nitrogen, stir and react for 10h, spin After steaming and alkali washing, washing with water and drying to obtain material B;

[0030] S3. Mix material A, material B and tetrahydrofuran evenly, add benzoin dimethyl ether, react under ultraviolet light for 15 minutes, wash and dry to obtain material C;

[0031] S4, adding samarium nitrate into water and stirring evenly to obtain a rare earth solution, spraying the rare earth solution on th...

Embodiment 2

[0037] A method for preparing a high-temperature-resistant fireproof casing for cables, comprising the following steps:

[0038] S1. Pickling the illite mineral powder, then adding it into the mixture of ethanol and water and stirring evenly, wherein, in the mixture of ethanol and water, the volume ratio of ethanol and water is 8:1, and adding a silane coupling agent KH-590, wherein the weight of the silane coupling agent KH-590 added is 4wt% of the weight of the illite ore powder after pickling, adjust the pH value to 3, stir and react for 20h, wash with water until neutral after the reaction, filter , drying to obtain material A;

[0039] S2. Mix 2-propenylphenol, 5-fluoro-2-benzidine, paraformaldehyde and 1,4-dioxane evenly, wherein 2-propenylphenol, 5-fluoro-2-benzidine, The molar ratio of paraformaldehyde is 1:2.05:3.9, heated to reflux under the protection of nitrogen, stirred and reacted for 5 hours, after the reaction is completed, rotary steaming, washing with alkali...

Embodiment 3

[0047] A method for preparing a high-temperature-resistant fireproof casing for cables, comprising the following steps:

[0048] S1. Pickle the illite mineral powder, then add it into the mixed solution of ethanol and water and stir evenly, wherein, in the mixed solution of ethanol and water, the volume ratio of ethanol and water is 3:1, and add silane coupling agent KH-590, wherein the weight of the silane coupling agent KH-590 added is 7wt% of the weight of the illite ore powder after pickling, adjust the pH value to 3, stir and react for 12h, wash with water until neutral after the reaction, filter , drying to obtain material A;

[0049] S2. Mix 2-propenylphenol, 5-fluoro-2-benzidine, paraformaldehyde and 1,4-dioxane evenly, wherein 2-propenylphenol, 5-fluoro-2-benzidine, The molar ratio of paraformaldehyde is 1:2.05:4, heated to reflux under the protection of nitrogen, stirred and reacted for 9 hours, after the reaction, rotary steamed, washed with alkali, washed with wat...

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PUM

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Abstract

The invention discloses a preparation method of a high-temperature-resistant fireproof bushing for a cable. The preparation method comprises the following steps: modifying illite mineral powder with asilane coupling agent KH-590 to obtain a material A; carrying out a reaction by using 2-propenylphenol, 5-fluoro-2-benzidine, paraformaldehyde and 1,4-dioxane as raw materials to obtain a material B;uniformly mixing the material A, the material B and tetrahydrofuran, adding benzoin dimethyl ether, and reacting under ultraviolet light to obtain a material C; spraying a samarium nitrate aqueous solution on the surface of the material C to obtain modified illite mineral powder; preparing a coating material from a polyurethane prepolymer, aldehyde ketone resin, dimethyl silicone oil, epoxy resin, a chain extender, a cross-linking agent, glass fibers, silica micro-powder, cerium phosphate, nano titanium dioxide, modified illite powder, a flame retardant and an auxiliary agent; coating a silicone rubber tube with the coating material to form a first coating layer; weaving glass fibers on the first coating layer to form a glass fiber weaving layer; and coating the glass fiber weaving layerwith the coating material to form a second coating layer.

Description

technical field [0001] The invention relates to the technical field of protective tubes, in particular to a method for preparing a high-temperature-resistant fireproof casing for cables. Background technique [0002] The cable is usually twisted by several or several groups of wires (at least two in each group), each group of wires is insulated from each other, and is often twisted around a center, and the entire outer surface is covered with a highly insulating coating. It has the characteristics of internal electrification and external insulation. With the development of communication technology, cables are more and more widely used in people's daily work and life. During cable installation, in order to protect the cable and reduce the frequency of cable replacement, it is necessary to install a sleeve for the cable. Existing bushings often lack the ability to resist high temperatures. In some special environments, they still cannot meet the requirements of high temperat...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/62C09D7/61C09D7/63C09D7/65C09D5/08C09D5/18
CPCC09D175/04C09D7/62C09D7/61C09D7/63C09D7/70C09D7/65C09D5/08C09D5/18C08L2205/035C08K2003/328C08K2201/011C08K2003/2241C08L2201/02C08L2205/04C08L2201/08C08L61/02C08K13/06C08K7/14C08K3/36C08K3/32C08K3/22C08K9/06C08K9/02C08K9/08C08K3/346Y02A30/14
Inventor 许成杰
Owner ANHUI HAOTIAN NEW MATERIALS CO LTD
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