Flame-retardant waterproof mixture for high-voltage cable joints and preparation method thereof

A technology of high-voltage cables and mixtures, which is applied in the fields of insulation, flame-retardant and waterproof mixtures and their preparation, high-voltage cable joints, flame-retardant, waterproof, and sealing mixtures and their preparations, and can solve the problems that polyurethane potting materials do not have flame retardancy, etc. , to achieve the effects of low harm to production and users, reduced pollution, and super flame retardant properties

Inactive Publication Date: 2019-03-22
SHOWA TBEA SHANDONG CABLE ACCESSORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyurethane potting material does not have the effect of flame retardancy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A flame-retardant and waterproof mixture for high-voltage cable joints, including A component and B component, the A component is composed as follows in parts by mass: 10 parts of MDI-50, 10 parts of chlorinated paraffin; the B component The composition in parts by mass is as follows: 40 parts of castor oil, 4 parts of chlorinated paraffin, 16 parts of decabromodiphenylethane, 20 parts of aluminum hydroxide, 0.01 part of catalyst stannous octoate; the A component and the B component The mass ratio is 1:5.

[0047] The preparation method of the above-mentioned flame-retardant and waterproof mixture for high-voltage cable joints comprises the following steps:

[0048] (1) Preparation of component A: Add 10 parts of MDI-50 and 10 parts of chlorinated paraffin into the reaction kettle, stir at 40 rpm for 20 minutes with a stirring paddle to obtain component A, and keep it sealed.

[0049] (2) Preparation of component B: first heat the reactor to 120°C, then add 40 parts of...

Embodiment 2

[0052] A flame-retardant and waterproof mixture for high-voltage cable joints, including A component and B component, the A component is composed as follows in terms of mass parts: 10 parts of MDI-50, 10 parts of chlorinated paraffin; The composition in parts by mass is as follows: 40 parts of castor oil, 4 parts of chlorinated paraffin, 12 parts of decabromodiphenylethane, 24 parts of aluminum hydroxide, 0.01 part of catalyst stannous octoate; The mass ratio is 1:5.

[0053] The preparation method of the above-mentioned flame-retardant and waterproof mixture for high-voltage cable joints comprises the following steps:

[0054] (1) Preparation of component A: add 10 parts of MDI-50 and 10 parts of chlorinated paraffin into the reaction kettle, stir at 40 rpm for 20 minutes with a stirring paddle to obtain component A, and keep it sealed.

[0055] (2) Preparation of component B: first heat the reactor to 120°C, then add 40 parts of castor oil and 4 parts of chlorinated paraffi...

Embodiment 3

[0058] A flame-retardant and waterproof mixture for high-voltage cable joints, including A component and B component, the A component is composed as follows in parts by mass: 10 parts of MDI-50, 10 parts of chlorinated paraffin; the B component The composition in parts by mass is as follows: 40 parts of castor oil, 4 parts of chlorinated paraffin, 8 parts of decabromodiphenylethane, 28 parts of aluminum hydroxide, 0.01 part of catalyst stannous octoate; the A component and the B component The mass ratio is 1:5.

[0059] The preparation method of the above-mentioned flame-retardant and waterproof mixture for high-voltage cable joints comprises the following steps:

[0060] (1) Preparation of component A: Add 10 parts of MDI-50 and 10 parts of chlorinated paraffin into the reaction kettle, stir at 40 rpm for 20 minutes with a stirring paddle to obtain component A, and then seal it for storage.

[0061] (2) Preparation of component B: first heat the reactor to 120°C, then add 40...

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PUM

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Abstract

The invention relates to a flame-retardant waterproof mixture for high-voltage cable joints and a preparation method thereof. The flame-retardant waterproof mixture is prepared from a component A anda component B, wherein the component A is prepared from the following components in parts by mass: 5 to 25 parts of crosslinking agent and 5 to 25 parts of flame retardant I; the component B is prepared from the following components in parts by mass: 20 to 50 parts of hydroxy grease, 1 to 10 parts of flame retardant II, 1 to 20 parts of flame retardant III, 10 to 40 parts of flame retardant IV, and 0.01 to 0.1 part of catalyst. The component A and the component B are used in a matching way. The invention further provides a preparation method of the flame-retardant waterproof mixture for high-voltage cable joints. The preparation method has the advantages of easiness in operation, short preparation period, low requirements for operation conditions, and easiness in control. The prepared waterproof mixture has the advantages of superior waterproof performance, electric insulating performance and mechanical performance and ultrahigh flame retarding property.

Description

Technical field: [0001] The invention relates to a flame-retardant and waterproof mixture for electric power systems and a preparation method thereof, in particular to a mixture for flame-retardant, insulation, waterproof and sealing of high-voltage cable joints and a preparation method thereof, belonging to the field of polyurethane coatings. Background technique: [0002] In the transmission line of the power system, the intermediate joint between the cable and the cable needs to be poured with a flame-retardant waterproof mixture: on the one hand, it is to prevent moisture, moisture, etc. from entering the intermediate joint. If moisture or moisture enters the internal joint, it will cause The electrical performance of the intermediate joint is degraded, or the grounding system is short-circuited, which will cause breakdown in severe cases; on the other hand, when the intermediate joint is on fire due to internal (intermediate joint breakdown) or external (cable fire conne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/14C08L91/06C08K5/03C08K3/22C08G18/36
CPCC08G18/36C08K2003/2227C08L75/14C08L2201/02C08L91/06C08K5/03C08K3/22
Inventor 王龙陈猛猛刘彬陈明浩王祥董波住本勉
Owner SHOWA TBEA SHANDONG CABLE ACCESSORIES
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