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A low-temperature-resistant, oil-resistant, torsion-resistant, low-smoke, halogen-free, flame-retardant wind energy cable sheath material and its preparation method and use

A cable sheath material and torsion-resistant technology, which is applied in the field of low-smoke, halogen-free, flame-retardant cable materials, can solve the problems of harm to the body, endangering health, and difficulty in meeting the requirements of -55 low-temperature torsion resistance, and achieve torsion resistance Good, soft material, excellent performance

Active Publication Date: 2022-05-13
上海至正新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. It is difficult to meet the requirements of -55 low temperature torsion resistance;
[0005] 2. It is a halogen-containing material, which is harmful to the health of the operator during the production process. Combustion can release a large amount of halogen-containing gas, endangering health
[0006] Therefore, some cable manufacturers are gradually replacing halogen-containing materials such as PVC with low-smoke and halogen-free materials. However, the materials produced by domestic material manufacturers have certain problems in low-temperature torque resistance, which need to be resolved urgently.

Method used

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  • A low-temperature-resistant, oil-resistant, torsion-resistant, low-smoke, halogen-free, flame-retardant wind energy cable sheath material and its preparation method and use
  • A low-temperature-resistant, oil-resistant, torsion-resistant, low-smoke, halogen-free, flame-retardant wind energy cable sheath material and its preparation method and use
  • A low-temperature-resistant, oil-resistant, torsion-resistant, low-smoke, halogen-free, flame-retardant wind energy cable sheath material and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0056] A method for preparing a low-temperature-resistant, oil-resistant, torsion-resistant, low-smoke, halogen-free, flame-retardant wind energy cable sheathing material, comprising the following steps:

[0057] Flame retardant, flame retardant synergist, auxiliary crosslinking agent, antioxidant and lubricant etc. are mixed according to the ratio of claim 1, the flame retardant after mixing is mixed with ethylene vinyl acetate rubber (EVM), ethylene- Acrylate copolymer, SEBS elastomer, compatibilizer, etc. are mixed and extruded to granulate, and the four temperature sections in the extrusion granulation process are: feeding section 120-130°C, conveying section 130-140°C, melting Section 140-150°C, head 150-160°C.

[0058] It should be understood that in this part: ethylene vinyl acetate rubber (EVM), ethylene-acrylate copolymer, SEBS elastomer, compatibilizer, flame retardant, flame retardant synergist, auxiliary crosslinking agent, antioxidant and The ingredients and amou...

Embodiment 1

[0067] Each component name and each component parts by weight of embodiment 1 formula are as shown in table 1:

[0068] Table 1

[0069]

[0070]

[0071] Mix flame retardant, flame retardant synergist, co-crosslinking agent, antioxidant and lubricant in proportion, mix the mixed flame retardant with ethylene vinyl acetate rubber (EVM), ethylene-acrylate copolymer , SEBS elastomer, compatibilizer, etc. are mixed and extruded to granulate, and the four temperature sections in the extrusion granulation process are: feeding section 120-130°C, conveying section 130-140°C, melting section 140-150°C ℃, head 150 ~ 160 ℃.

[0072] Then the obtained cable material is melted and extruded on the conductive wire core of the cable to coat the retardant material to form a sheath, and then irradiated and cross-linked in an electron accelerator with a dose of 12-18 Mrad.

[0073] The product in Example 1 is subjected to a performance detection test, and each performance value is as sh...

Embodiment 2

[0075] Each component name and each component parts by weight of embodiment 2 formula are as shown in table 2:

[0076] Table 2

[0077]

[0078]

[0079] The preparation method of the above-mentioned cable material is the same as that of Example 2.

[0080] The product in Example 2 is subjected to a performance detection test, and each performance value is as shown in Table 7 of the performance example.

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Abstract

The invention discloses a low-temperature-resistant, oil-resistant, torsion-resistant, low-smoke, halogen-free, flame-retardant wind energy cable sheathing material, which is characterized in that, in parts by weight, it comprises the following components: ethylene vinyl acetate rubber (EVM) 30-60; ethylene ‑Acrylic copolymer 20‑40; SEBS elastomer 15‑30; compatibilizer 10‑15; flame retardant 80‑140; flame retardant synergist 4‑14; co-crosslinking agent 0.5‑2; antioxidant 0.5‑1.5; lubricant 0.2‑1.5. The invention also discloses its preparation method and application. The wind energy cable sheathing material of the present invention has excellent properties and can meet the oil resistance requirements in the technical indicators of wind energy cables; it has good torsion resistance and can withstand 20,000 times of torsion tests at normal temperature and 2,000 times at low temperature (-55°C); low Smoke-free, halogen-free and flame-retardant, with good mechanical properties. The material is soft, the processability is good, and the cost performance is high.

Description

technical field [0001] The invention relates to the field of low-smoke, halogen-free, and flame-retardant cable materials, in particular to a low-smoke, halogen-free, and flame-retardant wind energy cable sheathing material, a low-smoke, halogen-free, and flame-retardant cable sheathing material, and a preparation method and application thereof. Background technique [0002] In recent years, non-renewable energy sources such as oil and coal are facing depletion, and environmental issues such as climate warming and carbon emissions have attracted more and more attention. Gradually replacing high-carbon, high-pollution non-clean energy with low-carbon, green and clean energy is an inevitable choice for countries around the world to respond to climate change, effectively protect the ecological environment, and ensure energy supply security. As the main component of clean energy, wind power has the advantages of inexhaustible supply, no pollution, no consumption of resources, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L53/02C08L51/00C08L23/06C08K13/04C08K7/00C08K3/22C08K3/34C08K3/38
CPCC08L23/0853C08K2003/2224C08K2003/2227C08K2201/011C08K2003/387C08L2201/22C08L2201/02C08L2205/035C08L2203/202C08L23/0869C08L53/025C08L51/006C08L23/06C08K13/04C08K7/00C08K3/22C08K3/346C08K3/38
Inventor 雷果宋刚李滨耀项健施冬梅
Owner 上海至正新材料有限公司