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Supporting strip material for cold shrink cable accessories and preparation method thereof

A technology for cable accessories and support strips, which is applied in the field of support strip materials for cold-shrinkable cable accessories and its preparation. It can solve the problems that support strips cannot be pulled out smoothly, silicone rubber products are not bonded, waste of materials and manpower, etc., and achieve light weight. , low density and low production cost

Inactive Publication Date: 2020-09-11
山东耐高电力器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The support strips made of existing materials have the disadvantages of becoming soft and subsidence at high temperature, and brittle and fractured at low temperature. As a result, during actual use, the support strip cannot be pulled out smoothly, and the silicone rubber products do not fit well on the surface of the cable, resulting in extreme Large waste of materials and manpower

Method used

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  • Supporting strip material for cold shrink cable accessories and preparation method thereof
  • Supporting strip material for cold shrink cable accessories and preparation method thereof
  • Supporting strip material for cold shrink cable accessories and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The support bar material for the cold-shrinkable cable accessories is made of the following raw materials in parts by mass:

[0031] 100 parts of homopolypropylene, 40 parts of copolymerized polypropylene, 30 parts of POE cold-resistant toughening agent, 1.5 parts of nucleating agent, 2.5 parts of antioxidant, 6 parts of compatibilizer, and 7 parts of EPDM.

[0032] The POE cold-resistant toughening agent is a high polymer of ethylene and butene using a metallocene catalyst.

[0033] The nucleating agent is an alpha crystal nucleating agent.

[0034] The antioxidant is hydroquinone.

[0035] The compatibilizer is a PP blend grafted with maleic anhydride, and the molecular weight is 4000-5000.

[0036] The preparation method of the support bar material for cold-shrinkable cable accessories includes the following steps:

[0037] Physically mix homopolypropylene, copolymerized polypropylene, POE cold-resistant toughening agent, nucleating agent, antioxidant, compatibili...

Embodiment 2

[0039] The support bar material for the cold-shrinkable cable accessories is made of the following raw materials in parts by mass:

[0040] 100 parts of homopolypropylene, 10 parts of copolymerized polypropylene, 10 parts of POE cold-resistant toughening agent, 3 parts of nucleating agent, 1 part of antioxidant, 10 parts of compatibilizer, and 10 parts of EPDM.

[0041] The POE cold-resistant toughening agent is a high polymer of ethylene and octene using a metallocene catalyst.

[0042] The nucleating agent is a β crystal nucleating agent.

[0043] The antioxidant is thiobisphenol.

[0044] The compatibilizer is a PP blend grafted with maleic anhydride, and the molecular weight is 4000-5000.

[0045] The preparation method of the support bar material for cold-shrinkable cable accessories includes the following steps:

[0046] Physically mix homopolypropylene, copolymerized polypropylene, POE cold-resistant toughening agent, nucleating agent, antioxidant, compatibilizer and...

Embodiment 3

[0048] The support bar material for the cold-shrinkable cable accessories is made of the following raw materials in parts by mass:

[0049] 100 parts of homopolypropylene, 50 parts of copolymerized polypropylene, 50 parts of POE cold-resistant toughening agent, 1 part of nucleating agent, 3 parts of antioxidant, 8 parts of compatibilizer, and 3 parts of EPDM.

[0050] The POE cold-resistant toughening agent is a high polymer of ethylene and octene using a metallocene catalyst.

[0051] The nucleating agent is a mixture of an α crystal nucleating agent and a β crystal nucleating agent, and the mixing ratio is 1:1.

[0052] The antioxidant is p-phenylenediamine.

[0053] The compatibilizer is a PP blend grafted with maleic anhydride, and the molecular weight is 4000-5000.

[0054] The preparation method of the support bar material for cold-shrinkable cable accessories includes the following steps:

[0055] Physically mix homopolypropylene, copolymerized polypropylene, POE col...

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Abstract

The invention relates to a supporting strip material for cold shrink cable accessories and a preparation method thereof, and belongs to the technical field of cable accessories. The supporting strip material for cold shrink cable accessories is prepared from the following raw materials by weight: 100 parts of homo-polypropylene, 10-50 parts of co-polypropylene, 10-50 parts of a POE cold-resistanttoughening agent, 0.1-3 parts of a nucleating agent, 1-3 parts of an oxidant, 3-10 parts of a compatilizer and 3-10 parts of ethylene propylene diene monomer. The supporting strip material for cold shrink cable accessories has the advantages of small density, light weight, heat resistance and corrosion resistance, but also has the characteristics of impact resistance and low-temperature embrittlement resistance; the invention also provides a simple and feasible preparation method which is beneficial to industrial production.

Description

technical field [0001] The invention relates to a support strip material for cold-shrinkable cable accessories and a preparation method thereof, belonging to the technical field of cable accessories. Background technique [0002] In recent years, with the rapid development of the economy, the acceleration of urbanization, the in-depth development of rural power grid transformation, the start of urban network transformation, the use of power cables in power supply systems has become more and more extensive. The cable accessories necessary for the operation of the cable system are also developing rapidly with the update of cable technology. Cold shrink technology is welcomed by users in the power cable accessories industry and communication industry because of its easy to use, high safety and reliability. [0003] The cable accessories all adopt the cold shrink technology, that is, the silicone rubber products are pre-stretched within its elastic range, the plastic support st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/08C08L23/16C08L51/06
CPCC08L23/12C08L2201/08C08L2203/20C08L2205/035C08L2205/08C08L2205/24C08L2205/242C08L23/14C08L23/0815C08L23/16C08L51/06
Inventor 孙晓维
Owner 山东耐高电力器材有限公司
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