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A kind of high ductility electrical stress control adhesive and its production method

A ductility and electrical stress technology, applied in the direction of adhesives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of being easily broken, inconvenient for construction, and being pulled off.

Inactive Publication Date: 2017-09-29
长春中科应化特种材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of installing cable terminals or intermediate joints, when using electrical stress control glue, in order to ensure a good fit, the electrical stress control glue needs to be stretched very long and thin before winding; and the products on the market now extend The properties are not very good, and it is easy to be broken during the pulling process, which is inconvenient for construction. For example, the products protected by patents: CN90103331.6, CN200910067125.5, CN200910140609.8, CN201110246946.2, CN200910140610.0 are extensions Products with bad sex and easy to be broken

Method used

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  • A kind of high ductility electrical stress control adhesive and its production method
  • A kind of high ductility electrical stress control adhesive and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Embodiment 1: Production of high ductility electric stress control glue of the present invention

[0089] The steps of this method are as follows:

[0090] A. Weighing

[0091] Take by weighing 100 parts by weight of acrylonitrile content 32% nitrile rubber, 20 parts by weight of novolac epoxy resin, 45 parts by weight of polyether triol, and 3.5 parts by weight of stearic acid for subsequent use

[0092] B. Mixing

[0093] The materials weighed in step A) are prepared into compound rubber using an internal mixer, and the specific process steps are as follows:

[0094] a) The temperature of the internal mixer is raised to 50-60 degrees Celsius, and the nitrile rubber is put into mastication for 10 minutes;

[0095] b) add tackifier, carry out the following steps after mixing evenly;

[0096] c) Add 1 / 2 of the softener, and carry out the following steps after mixing evenly;

[0097] d) Add toughening agent, carry out the following steps after mixing evenly;

[0098...

Embodiment 2

[0105] Embodiment 2: Production of high ductility electrical stress control glue of the present invention

[0106] The steps of this method are as follows:

[0107] A. Weighing

[0108] Take by weighing 100 parts by weight of acrylonitrile content 27% nitrile rubber, 25 parts by weight of bisphenol A type epoxy resin, 55 parts by weight of polyethylene glycol, and 4.0 parts by weight of pine tar for subsequent use;

[0109] B. Mixing

[0110] The materials weighed in step A) are prepared into compound rubber using an internal mixer, and the specific process steps are as follows:

[0111] a) The temperature of the internal mixer is raised to 50-60 degrees Celsius, and the nitrile rubber is put into mastication for 10 minutes;

[0112] b) add tackifier, carry out the following steps after mixing evenly;

[0113] c) Add 1 / 2 of the softener, and carry out the following steps after mixing evenly;

[0114] d) Add toughening agent, carry out the following steps after mixing even...

Embodiment 3

[0122] Embodiment 3: Production of high ductility electric stress control glue of the present invention

[0123] The steps of this method are as follows:

[0124] A. Weighing

[0125] Take by weighing 100 parts by weight of acrylonitrile content 47% nitrile rubber, 15 parts by weight of terpene phenol resin, 50 parts by weight of liquid nitrile, 3.0 parts by weight of stearic acid for subsequent use;

[0126] B. Mixing

[0127] The materials weighed in step A) are prepared into compound rubber using an internal mixer, and the specific process steps are as follows:

[0128]a) The temperature of the internal mixer is raised to 50-60 degrees Celsius, and the nitrile rubber is put into mastication for 10 minutes;

[0129] b) add tackifier, carry out the following steps after mixing evenly;

[0130] c) Add 1 / 2 of the softener, and carry out the following steps after mixing evenly;

[0131] d) Add toughening agent, carry out the following steps after mixing evenly;

[0132] e)...

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Abstract

The invention relates to a high ductility electric stress control glue and a production method thereof. The elongation at break of the high ductility electric stress control glue is 2500-3000%, the dielectric constant is 15-19, and the volume resistivity is 1.0×1011-1.0×1012Ω·cm. The production method of the high-extensibility electric stress control glue comprises the steps of using nitrile rubber and various auxiliary agents to prepare mixed rubber, extruding and pressing sheet-like strips, and cutting to obtain high-extensibility electric stress control glue. Compared with the existing electric stress control glue, the high ductility electric stress control glue of the present invention has high ductility, which eliminates the disadvantage of being easily broken when using the electric stress control glue with low ductility; All organic matter is used in the formula, and there is no powdery inorganic matter, which avoids dust pollution, so the product of the present invention not only facilitates the construction, but also takes into account the environmental protection in the production process.

Description

technical field [0001] The invention belongs to the technical field of materials. More specifically, the present invention relates to a high ductility electric stress control glue, and also relates to a production method of the high ductility electric stress control glue. Background technique [0002] In medium voltage coaxial cable construction, the insulating shield is connected to the ground system so that the internal electric field is of uniform field strength with a radial distribution. When the cable terminal or intermediate joint is installed, the semiconducting layer of the cable is stripped, which causes the internal electric field to be distorted and becomes an uneven field strength, that is, electrical stress concentration. [0003] In order to alleviate the negative impact of electrical stress, materials with certain electrical parameters are usually used to solve the problem of electrical stress concentration. There are two main types of stress control materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J109/02C09J11/06C09J11/08C09J7/00C09J7/02
Inventor 李志宏王海波刘宇鑫韩子龙向阳谷春媛
Owner 长春中科应化特种材料股份有限公司