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Cross-linked elastomer cable material for high-voltage cables in vehicle, cable and preparation method thereof

A cross-linked elastomer and cable material technology, applied in the direction of circuits, insulators, electrical components, etc., can solve the problems of easy cracking of cables, achieve improved crack resistance, improve bending performance and crack resistance, and good heat resistance Effect

Active Publication Date: 2021-04-06
中广核拓普(湖北)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the existing cables for electric vehicles are easy to crack, and provide a cross-linked elastomer cable material for high-voltage cables in vehicles.

Method used

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  • Cross-linked elastomer cable material for high-voltage cables in vehicle, cable and preparation method thereof
  • Cross-linked elastomer cable material for high-voltage cables in vehicle, cable and preparation method thereof
  • Cross-linked elastomer cable material for high-voltage cables in vehicle, cable and preparation method thereof

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preparation example Construction

[0046] The present invention also provides a preparation method of the above cable, the preparation method comprising the following steps:

[0047] 1) Take SEBS, EPDM, HDPE, EVM, POE, POP and PE-g-MAH in the formula amount and add them to the mixer for mixing, and then plasticize and granulate the obtained mixture;

[0048] 2) The material obtained in step 1) is added to the remaining components of the formulation amount, mixed, and then kneaded, plasticized and granulated in a two-stage extruder; this two-stage extruder includes a twin-screw extruder and a single screw extruder;

[0049] 3) Place the material obtained in step 2) on the production line of the wire and cable extruder, extrude it in the extruder, coat it on the conductor core, and then perform irradiation processing. After irradiation, the thermal elongation is controlled at 15%~ 30% to form the final finished cable.

[0050] Preferably, in step 1, a twin-screw granulator is used for plasticizing and granulati...

Embodiment 1～8

[0056] A cross-linked elastomer cable material for high-voltage cables in vehicles is used to prepare wires and cables for electric vehicles, and its formula is shown in Table 1 (the units of each component are parts by weight).

[0057] The formula of cable material in table 1 embodiment 1~8

[0058]

[0059]

[0060] In each of the above embodiments, the nano-barium sulfate is the precipitated barium sulfate Blanc Fixed F from Sahaliben, Germany, and the particle size distribution is about 15nm; the styrene content is 35% in the SEBS, and the molecular weight is 150,000 to 200,000; The ethylene content in EPDM is 70%, the Mooney viscosity (ML 1+4, 125°C) is 20MU; the melt index of the HDPE is 0.08-2g / 10min; the EVM is LANXESS EVM 500HV, and the VA content is 50% , Mooney viscosity (ML 1+4, 100°C) is 27; the POP is ExxonMobil Vistama xxTM special elastomer 6102, the ethylene content is 16%, and the melt index is 3g / 10min@230°C; the PE - The grafting rate of g-MAH is 0....

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Abstract

The invention discloses a cross-linked elastomer cable material for high-voltage cables in vehicles, which comprises the following components in parts by weight: 10-30 parts of SEBS, 10-30 parts of EPDM, 10-30 parts of HDPE, 10-30 parts of EVM 30 parts, POE 5~20 parts, POP 10~15 parts, PE‑g‑MAH 4~10 parts, hydroxide flame retardant 100~150 parts, phosphorus nitrogen flame retardant 20~30 parts, lubricant 0.8 ~2 parts, 1.5~2 parts of coupling agent, 2~3.5 parts of antioxidant, 1.5~3 parts of auxiliary crosslinking agent, 0.5~1.4 parts of processing aid; the cable material does not contain white oil. The invention also discloses a cable prepared from the cable material and a preparation method of the cable. The cross-linked elastomer cable material of the invention has good crack resistance and is suitable for preparing electric wires and cables for electric vehicles.

Description

technical field [0001] The invention relates to the field of halogen-free flame-retardant cable materials, in particular to a cross-linked elastomer cable material for high-voltage cables in vehicles, a cable and a preparation method thereof. Background technique [0002] In 2016, the global sales of electric vehicles was about 770,000, and China's sales of electric vehicles ranked first in the world with 350,000, accounting for 1.45% of the national sales of passenger vehicles. The United States ranked second with sales of 159,000 vehicles. In third place is Norway with 46,000 sales, accounting for 29.5% of all car sales in Norway for the year. France sold 34,000, Germany 27,000 and Japan 22,000. [0003] In 2017, the global sales of electric vehicles was about 1 million, and China's sales of electric vehicles ranked first in the world, with 572,000 vehicles, accounting for 2.3% of all vehicle sales in China for the whole year. The United States ranked second, with sales...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L53/02C08L23/06C08L51/06C08L23/08C08K3/22C08K5/5313C08K5/3492C08K3/30C08K13/02H01B3/28H01B3/44
CPCC08K2003/2224C08K2003/3045C08L23/06C08L23/0853C08L23/16C08L53/025C08L2201/08C08L2203/202C08L2205/035C08L2207/062H01B3/28H01B3/441H01B3/442C08L51/06C08K3/22C08K5/5313C08K5/34928C08K3/30C08K13/02
Inventor 廖永江
Owner 中广核拓普(湖北)新材料有限公司
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