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Insulated pressure-sensitive adhesive tape for high-voltage cable joints and preparation method thereof

A pressure-sensitive adhesive tape and high-voltage cable technology, applied in the direction of pressure-sensitive film/sheet, adhesive, polymer adhesive additives, etc., to achieve the effect of improving insulation and aging resistance, and improving initial adhesion

Inactive Publication Date: 2016-08-17
张琦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the protection of high-voltage cable joints mostly adopts the method of hot melting. Although the ordinary insulating tape has good bonding performance, insulation performance and aging resistance, the breakdown voltage can reach 160kv / mm, and the breakdown voltage can reach 60kv / mm. The relative elongation rate is 300%, but the performance of the insulating tape needs to be further improved to meet the higher protection requirements of high-voltage cables

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An insulating pressure-sensitive adhesive tape for high-voltage cable joints, made of the following raw materials in parts by weight: 100 parts of neoprene rubber, 15 parts of high molecular weight polyisobutylene, 8 parts of polybutadiene rubber, 10 parts of carbon five petroleum resin, hydrogenated carbon five 15 parts of petroleum resin, 10 parts of rosin pentaerythritol ester, 15 parts of terpene resin, 10 parts of pine tar, 2 parts of stearic acid, 0.4 parts of 1,3-diethylthiourea, 2 parts of anti-aging agent, 4 parts of zinc oxide, 80 parts of carbon fiber, 1 part of antioxidant, 0.3 part of coloring agent.

[0024] The above-mentioned production method comprises the following steps:

[0025] (1) Material preparation: Weigh each raw material by weight, grind the weighed zinc oxide and colorant with a grinder, and set aside;

[0026] (2) Mastication: adding neoprene, high molecular weight polyisobutylene, and polybutadiene rubber into a plasticizer for mastication...

Embodiment 2

[0033] An insulating pressure-sensitive adhesive tape for high-voltage cable joints, made of the following raw materials in parts by weight: 100 parts of neoprene rubber, 20 parts of high molecular weight polyisobutylene, 10 parts of polybutadiene rubber, 20 parts of carbon five petroleum resin, hydrogenated carbon 5. 30 parts of petroleum resin, 20 parts of rosin pentaerythritol ester, 20 parts of terpene resin, 15 parts of pine tar, 4 parts of stearic acid, 0.6 parts of 1,3-diethylthiourea, 3 parts of anti-aging agent, 5 parts of zinc oxide , 90 parts of carbon fiber, 2 parts of antioxidant, 0.4 part of coloring agent.

[0034] The above-mentioned production method comprises the following steps:

[0035] (1) Material preparation: Weigh each raw material by weight, grind the weighed zinc oxide and colorant with a grinder, and set aside;

[0036] (2) Mastication: adding neoprene, high molecular weight polyisobutylene, and polybutadiene rubber into a plasticizer for masticatio...

Embodiment 3

[0043] An insulating pressure-sensitive adhesive tape for high-voltage cable joints, made of the following raw materials in parts by weight: 100 parts of neoprene rubber, 25 parts of high molecular weight polyisobutylene, 12 parts of polybutadiene rubber, 30 parts of carbon five petroleum resin, hydrogenated carbon five 45 parts of petroleum resin, 30 parts of rosin pentaerythritol ester, 35 parts of terpene resin, 20 parts of pine tar, 6 parts of stearic acid, 0.8 parts of 1,3-diethylthiourea, 4 parts of anti-aging agent, 6 parts of zinc oxide, 100 parts of carbon fiber, 3 parts of antioxidant, 0.5 part of coloring agent.

[0044] The above-mentioned production method comprises the following steps:

[0045] (1) Material preparation: Weigh each raw material by weight, grind the weighed zinc oxide and colorant with a grinder, and set aside;

[0046] (2) Mastication: adding neoprene, high molecular weight polyisobutylene, and polybutadiene rubber into a plasticizer for masticat...

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PUM

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Abstract

The invention discloses an insulated pressure-sensitive adhesive tape for high-voltage cable joints and a preparation method thereof. The insulated pressure-sensitive adhesive tape for high-voltage cable joints is prepared from the following raw materials in parts by weight: 100 parts of neoprene, 15-25 parts of high molecular weight polyisobutylene, 8-12 parts of polybutadiene rubber, 10-30 parts of C5 petroleum resin, 15-45 parts of hydrogenated C5 petroleum resin, 10-30 parts of pentalyn, 15-35 parts of terpine resin, 10-20 parts of pine tar oil, 2-6 parts of stearic acid, 0.4-0.8 part of 1,3-diethyl thiourea, 2-4 parts of anti-aging agent, 4-6 parts of zinc oxide, 80-100 parts of carbon fiber, 1-3 parts of antioxidant and 0.3-0.5 part of colorant. The invention also provides the preparation method of the insulated pressure-sensitive adhesive tape. The insulated pressure-sensitive adhesive tape for high-voltage cable joints has the following beneficial effects of improving the insulation and ageing resistance, and increasing the initial adhesive strength, peel strength and holding power of the adhesive tape.

Description

technical field [0001] The invention relates to a pressure-sensitive adhesive tape and a manufacturing method thereof, in particular to an insulating pressure-sensitive adhesive tape for high-voltage cable joints and a manufacturing method thereof. Background technique [0002] In the construction and erection of high-voltage cables with long circuits, two or more sections of cables must be connected with cable joints to improve the electric field at the ends of the two cables and reduce the induced electromotive force of the metal sheath. Among them, the protection of cable joints is an important part of cable protection, and it is the key work to avoid or reduce cable operation failures. [0003] At present, the protection of high-voltage cable joints mostly adopts the method of hot melting. Although the ordinary insulating tape has good bonding performance, insulation performance and aging resistance, the breakdown voltage can reach 160kv / mm, and the breakdown voltage can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J111/00C09J11/04C09J11/06C09J11/08C09J7/02
CPCC08L2205/035C09J7/22C09J7/38C09J11/04C09J11/06C09J11/08C09J111/00C09J2301/302C09J2411/00C08L23/20C08L9/00C08L57/02C08K13/04C08K7/06C08K2003/2296C08K5/09
Inventor 张琦
Owner 张琦