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Waterproof sealing hot melt adhesive capable of evacuating electric stress and production method thereof

A technology of waterproof sealing and production method, which is applied in the field of materials, and can solve the problems of electrical stress evacuation glue without waterproof sealing effect, cumbersome operation process, and low efficiency.

Inactive Publication Date: 2014-09-24
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

Since the current electrical stress evacuation glue does not have the effect of waterproof sealing, it is necessary to use waterproof sealant to waterproof and seal the cables. The operation process is cumbersome and inefficient.
For example, the products protected by patents: CN90103331.6, CN200910067125.5, CN200910140609.8, CN201110246946.2, CN200910140610.0 and the products currently on the market are all electrical stress evacuation adhesives without waterproof sealing effect

Method used

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  • Waterproof sealing hot melt adhesive capable of evacuating electric stress and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] Embodiment 1: the production of waterproof sealing electrical stress evacuation glue of the present invention

[0095] The steps of this method are as follows:

[0096] A. Weighing

[0097] Weigh 100 parts by weight of bromobutyl rubber, 30 parts by weight of polyisobutylene, 90 parts by weight of conductive zinc oxide, 7.5 parts by weight of transformer oil, and 0.5 parts by weight of antioxidant DLTDP for subsequent use;

[0098] B. Mixing

[0099] The materials weighed in step A) are prepared into compound rubber using an internal mixer, and the specific process steps are as follows:

[0100] a) Heat up the internal mixer to 50-60 degrees Celsius, put in rubber and masticate for 10 minutes;

[0101] b) add tackifier, carry out the following steps after mixing evenly;

[0102] c) Add 1 / 2 of the conductive filler, and perform the following steps after mixing evenly;

[0103] d) Add 1 / 2 of the softener and 1 / 2 of the conductive filler, and perform the following ste...

Embodiment 2

[0112] Embodiment 2: the production of waterproof sealing electrical stress evacuation glue of the present invention

[0113] The steps of this method are as follows:

[0114] A. Weighing

[0115] Take by weighing 50 parts by weight of chloroprene rubber, 50 parts by weight of brominated butyl rubber, 40 parts by weight of rosin glyceride, 75 parts by weight of conductive carbon black, 6 parts by weight of industrial vaseline, and 0.5 parts by weight of antioxidant DSTDP for subsequent use;

[0116] B. Mixing

[0117] The materials weighed in step A) are prepared into compound rubber using an internal mixer, and the specific process steps are as follows:

[0118] a) Heat up the internal mixer to 50-60 degrees Celsius, put in rubber and masticate for 10 minutes;

[0119] b) add tackifier, carry out the following steps after mixing evenly;

[0120] c) Add 1 / 2 of the conductive filler, and perform the following steps after mixing evenly;

[0121] d) Add 1 / 2 of the softener and...

Embodiment 3

[0130] Embodiment 3: the production of waterproof sealing electrical stress evacuation glue of the present invention

[0131] The steps of this method are as follows:

[0132] A. Weighing

[0133] Take by weighing 50 parts by weight of chloroprene rubber, 50 parts by weight of brominated butyl rubber, 25 parts by weight of hydrogenated rosin glyceride, 100 parts by weight of conductive titanium dioxide, 8 parts by weight of pine tar, and 0.7 parts by weight of antioxidant DLTDP for subsequent use;

[0134] B. Mixing

[0135] The materials weighed in step A) are prepared into compound rubber using an internal mixer, and the specific process steps are as follows:

[0136] a) Heat up the internal mixer to 50-60 degrees Celsius, put in rubber and masticate for 10 minutes;

[0137] b) add tackifier, carry out the following steps after mixing evenly;

[0138] c) Add 1 / 2 of the conductive filler, and perform the following steps after mixing evenly;

[0139] d) Add 1 / 2 of the sof...

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Abstract

The invention relates to a waterproof sealing hot melt adhesive capable of evacuating electric stress and a production method thereof. The waterproof sealing hot melt adhesive capable of evacuating electric stress has a dielectric constant of 14 to 25 and volume resistivity of 1.0 * 10 <8> to 1.0 * 10 <10> omega.cm. The production method for the hot melt adhesive comprises a step of preparing a rubber compound from chloroprene rubber, brominated butyl rubber and a plurality of auxiliary agents, a step of carrying out extrusion and compaction so as to prepare a flaky strip and a step of cutting the flaky strip so as to obtain the waterproof sealing hot melt adhesive capable of evacuating electric stress. Compared with conventional hot melt adhesives capable of evacuating electric stress, the waterproof sealing hot melt adhesive capable of evacuating electric stress provided by the invention has the following advantages: the waterproof sealing hot melt adhesive has both an electric stress evacuating effect and a waterproof sealing effect, operation steps in construction are reduced, construction is simplified and facilitated, and work efficiency is improved to a large extent.

Description

technical field [0001] The invention belongs to the technical field of materials. More specifically, the present invention relates to a waterproof sealing electrical stress relieving glue, and also relates to a production method of the waterproof sealing electrical stress relieving glue. Background technique [0002] In the construction process of high-voltage transmission cable terminals or joints, the cable is cut into sections, and the structure of the cable needs to be restored layer by layer. In the process of restoring the semiconducting layer, the original semiconducting layer of the cable is cut off, and the electric field is distorted. If the distribution is uneven, discharge will occur due to excessive concentration of electrical stress, which will cause electrical breakdown. In 6~35KV cables, materials with specific electrical parameters are usually used to solve the point stress problem, such as electrical stress evacuation glue. Since the current electrical st...

Claims

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Application Information

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IPC IPC(8): C09J111/00C09J123/28C09J11/04C09J11/06C09J11/08C09J7/00C09J7/02
Inventor 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
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