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Cable sheath tube preparation method

A cable sheathing and sheathing technology, which is applied to insulated cables, cables, circuits, etc., can solve problems such as unsatisfactory, and achieve the effects of strong flame retardant performance, reduced production costs, and reduced environmental pollution.

Active Publication Date: 2016-01-13
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these current cable sheathing tubes are still not ideal in terms of strength, rigidity and flame retardancy, or there is only a certain improvement in the performance of a certain aspect, and there is a lot of room for further improvement.

Method used

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  • Cable sheath tube preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A high-flame-retardant and high-strength cable, which includes a core, an insulating layer, an inner sheath, and a sheath tube from the inside to the outside. The raw materials for the sheath tube, in parts by weight, include:

[0039] Ethylene-octene copolymer (Foshan Jinzeqiang Plastic Materials Co., Ltd. ENGAG8003) 90 copies

[0040] 5 parts of plant ash

[0041] 3 parts gum

[0042] 0.8 parts of butadienyl triethoxysilane

[0043] 2 parts stearic acid

[0044] 0.8 parts of white carbon black

[0045] 5 parts of electrolytic zinc acid leaching residue;

[0046] Preparation method: including the following steps:

[0047] (1) Melt blending: mix polyolefin, plant ash, silane coupling agent, stearic acid, and electrolytic zinc acid leaching residue in the above proportions, stir at 600r / min for 10min, and then melt and blend for 10min at 170℃ , Get the rubber;

[0048] (2) Cross-linking: After cross-linking the rubber compound obtained in step (1) at 170° C. for 30 minutes, add gum an...

Embodiment 2

[0053] A high-flame-retardant and high-strength cable, which includes a core, an insulating layer, an inner sheath, and a sheath tube from the inside to the outside. The raw materials for the sheath tube, in parts by weight, include:

[0054] Ethylene-octene copolymer (Foshan Jinzeqiang Plastic Materials Co., Ltd. ENGAG8003) 80 copies

[0055] 2 parts of plant ash

[0056] 1 part gum

[0057] 0.5 part of butadienyl triethoxy silane

[0058] 1 part stearic acid

[0059] 0.6 parts of white carbon black

[0060] 3 parts of electrolytic zinc acid leaching residue;

[0061] Preparation method: including the following steps:

[0062] (1) Melt blending: mix polyolefin, plant ash, silane coupling agent, stearic acid, and electrolytic zinc acid leaching residue in the above proportions, stir at 600r / min for 10min, and then melt and blend for 10min at 170℃ , Get the rubber;

[0063] (2) Cross-linking: After cross-linking the rubber compound obtained in step (1) at 170° C. for 30 minutes, add gum and ...

Embodiment 3

[0068] A high-flame-retardant and high-strength cable, which includes a core, an insulating layer, an inner sheath, and a sheath tube from the inside to the outside. The raw materials for the sheath tube, in parts by weight, include:

[0069] Ethylene-octene copolymer (Foshan Jinzeqiang Plastic Materials Co., Ltd. ENGAG8003) 85 copies

[0070] 3 parts of plant ash

[0071] 2 parts gum

[0072] 0.6 parts of butadienyl triethoxysilane

[0073] 1.5 parts of stearic acid

[0074] 0.7 parts of white carbon black

[0075] 4 parts of electrolytic zinc acid leaching residue;

[0076] Preparation method: including the following steps:

[0077] (1) Melt blending: mix polyolefin, plant ash, silane coupling agent, stearic acid, and electrolytic zinc acid leaching residue in the above proportions, stir at 600r / min for 10min, and then melt and blend for 10min at 170℃ , Get the rubber;

[0078] (2) Cross-linking: After cross-linking the rubber compound obtained in step (1) at 170° C. for 30 minutes, add g...

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Abstract

The invention discloses a cable sheath tube preparation method, and relates to the field of electricity facility. Raw materials of the cable sheath tube comprise, by weight, 80-90 parts of polyolefin, 2-5 parts of plant ash, 1-3 parts of gum, 0.5-0.8 parts of a silane coupling agent, 1-2 parts of stearic acid, 0.6-0.8 parts of white carbon black, and 3-5 parts of electrolytic zinc acid leaching residue. The cable sheath tube is prepared through the steps such as melt blending, crosslinking, granulation and molding. The tensile strength of the cable sheath tube is higher than 26 MPa. The breaking elongation of the cable sheath tube is higher than 750%. The oxygen index of the cable sheath tube is higher than 36. The flame retarding performance of the cable sheath tube reaches the A level. The cable sheath tube also has significant characteristics of high strength and high flame retarding performance. Also, plant ash and electrolytic zinc acid leaching residue are recycled, such that environment pollution is reduced, and production cost is reduced. The electric cable has significant economic and environmental benefits.

Description

[0001] This application is a Chinese patent: application number 2014101586477; invention name: high-strength high flame-retardant cable; application date: 2014.04.21 divisional application. technical field [0002] The invention relates to the field of electric facilities, in particular to a method for preparing a cable sheath tube. Background technique [0003] With the gradual acceleration of the urbanization process, urban planning is becoming more and more modern. In the process of urban construction, cable entry into the ground has become the minimum construction requirement. At the same time, in the process of urban transformation, it is also necessary to put various cables erected in the air into the ground. At present, the construction of cables into the ground often adopts non-excavation technology. This construction method has the advantages of no impact on traffic, little damage to the stratum structure, and short cycle. , has the performance: the cable needs to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L5/00C08K13/02C08K3/36C08K3/34C08K5/09C08K5/54C08K3/22C08J3/24
CPCC08J3/24C08J3/246C08J2323/08C08J2405/00C08L23/0815C08L2201/02C08L2203/20C08L2203/202H01B3/441H01B7/18C08L5/00C08K13/02C08K3/36C08K5/09C08K3/34C08K5/5425C08K3/22
Inventor 赵月
Owner STATE GRID CORP OF CHINA
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