Condensation type waterproof glue for longitudinal watertight cable and preparation method thereof

A longitudinal watertight cable and waterproof glue technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve problems affecting the waterproof performance and service life of watertight cables, conductor breakage, sliding, etc., to achieve sealing The effect is better, the adhesion is improved, and the effect of vulcanization and crosslinking is promoted

Inactive Publication Date: 2017-09-01
天长市通联焊业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, hot-melt adhesives are the main waterproof adhesives, but hot-melt adhesives tend to cause conductors to be bonded together and cannot produce relative sliding, and also cause conductors to break, which seriously affects the waterproof performance and service life of watertight cables.

Method used

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  • Condensation type waterproof glue for longitudinal watertight cable and preparation method thereof
  • Condensation type waterproof glue for longitudinal watertight cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A condensation-type waterproof adhesive for longitudinal watertight cables, characterized in that its raw materials include, by weight, 50 parts of 4,4'-diphenylmethane diisocyanate, 250 parts of polymer polyol, 40 parts of rosin resin, polyethylene 5 parts of alcohol, 5 parts of glutaraldehyde, 5 parts of crosslinking agent, 2 parts of carbon black, 5 parts of magnesium oxide, 3 parts of silane coupling agent, 3 parts of accelerator, and 15 parts of cosolvent.

Embodiment 2

[0020] A condensation-type waterproof adhesive for longitudinal watertight cables, characterized in that its raw materials include: 60 parts by weight of 4,4'-diphenylmethane diisocyanate, 400 parts of polymer polyol, 20 parts of rosin resin, polyethylene 10 parts of alcohol, 3 parts of glutaraldehyde, 15 parts of crosslinking agent, 1 part of carbon black, 8 parts of magnesium oxide, 2 parts of silane coupling agent, 8 parts of accelerator, 5 parts of cosolvent;

[0021] Wherein, polymer polyol is polyester polyol; Cross-linking agent is octyl phenolic vulcanization resin; Accelerator is trimethylol propane; Cosolvent is the mixture of ethyl acetate, cyclohexane and gasoline, ethyl acetate, The weight ratio of cyclohexane and gasoline is 1:2:1.

Embodiment 3

[0023] A condensation-type waterproof adhesive for longitudinal watertight cables, characterized in that its raw materials include: 52 parts by weight of 4,4'-diphenylmethane diisocyanate, 300 parts of polymer polyol, 35 parts of rosin resin, polyethylene 6 parts of alcohol, 4.5 parts of glutaraldehyde, 8 parts of crosslinking agent, 1.8 parts of carbon black, 6 parts of magnesium oxide, 2.8 parts of silane coupling agent, 4 parts of accelerator, 12 parts of cosolvent;

[0024] Among them, the polymer polyol is polyether polyol; the crosslinking agent is brominated octyl phenolic resin; the accelerator is polyoxypropylene triol; the cosolvent is a mixture of ethyl acetate, cyclohexane and gasoline, acetic acid The weight ratio of ethyl ester, cyclohexane and gasoline is 1:2:1;

[0025] The condensation-type waterproof glue for longitudinal watertight cables is prepared by the following steps:

[0026] S1. Mix 4,4'-diphenylmethane diisocyanate and polymer polyol according to t...

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Abstract

The invention discloses condensation type waterproof glue for a longitudinal watertight cable. The condensation type waterproof glue comprises the following raw materials in parts by weight: 50 to 60 parts of 4,4'-diphenylmethane diisocyanate, 250 to 400 parts of polymer polyols, 20 to 40 parts of rosin resin, 5 to 10 parts of polyvinyl alcohol, 3 to 5 parts of glutaraldehyde, 5 to 15 parts of cross-linking agents, 1 to 2 parts of carbon black, 5 to 8 parts of magnesium oxide, 2 to 3 parts of silane coupling agents, 3 to 8 parts of accelerators and 5 to 15 parts of cosolvents. The invention further discloses a preparation method of the condensation type waterproof glue for the longitudinal watertight cable. By adopting the condensation type waterproof glue for the longitudinal watertight cable, the adhesion force of the waterproof glue for the cable and cable materials and sealing and waterproof performances of the cable are improved, and performance requirements of the longitudinal watertight cable for a sealant are satisfied.

Description

technical field [0001] The invention relates to the technical field of cable waterproof adhesive sealants, in particular to a condensation-type waterproof adhesive for longitudinal watertight cables and a preparation method thereof. Background technique [0002] Longitudinal watertight cables have a longitudinal water-blocking function, and the water-blocking function is realized through glue filling. Therefore, cable water-blocking glue is one of the key conditions to determine whether the cable can achieve water-blocking. The characteristics and process of the glue determine the water-blocking of longitudinal watertight cables. performance and usage. At present, hot-melt adhesives are the main waterproof adhesives, but hot-melt adhesives tend to cause conductors to bond together and fail to slide relative to each other, and also cause conductors to break, which seriously affects the waterproof performance and service life of watertight cables. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J175/08C09J193/04C09J129/04C09J11/04C09J11/06C09J11/08C08G18/76C08G18/42C08G18/48C08G18/10C08G18/12
CPCC08G18/10C08G18/12C08G18/42C08G18/48C08G18/7671C08K2003/222C08L2201/02C08L2203/20C08L2205/035C08L2312/00C09J11/04C09J11/06C09J11/08C09J175/06C09J175/08C08L93/04C08L29/04C08K13/02C08K5/07C08K3/04C08K3/22C08K5/54
Inventor 卢齐元
Owner 天长市通联焊业有限公司
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