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High-thermal-conductivity silicone rubber cable material as well as preparation method and application thereof

A silicone rubber, high thermal conductivity technology, applied in rubber insulators, organic insulators, etc., can solve the problem of the thermal conductivity of cable materials needs to be improved, to improve flame retardant properties and mechanical properties, improve thermal conductivity, and reduce cable damage. Effect

Pending Publication Date: 2022-03-22
JIANGSU DASHENG POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned materials have obtained cable materials with excellent performance, they still cannot meet the double-standard IEC standards in line with IEC62930 and UL4703, and the thermal conductivity of the prepared cable materials still needs to be improved.

Method used

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  • High-thermal-conductivity silicone rubber cable material as well as preparation method and application thereof
  • High-thermal-conductivity silicone rubber cable material as well as preparation method and application thereof
  • High-thermal-conductivity silicone rubber cable material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A high thermal conductivity silicone rubber cable material, which comprises the following components in parts by weight:

[0054]

[0055] Its preparation method comprises the following steps:

[0056] (1) Methyl vinyl silicone rubber, magnesium hydroxide, aluminum hydroxide, polydopamine modified graphene (mix dopamine and graphene with a mass ratio of 1:1 in deionized water at 50°C for 2h to obtain the described Polydopamine-modified graphene), boron nitride, compatibilizer, stabilizer, silicone masterbatch, silane coupling agent and antioxidant were mixed at 160°C for 25 minutes, and then passed through a single-screw extruder to form granules. The single-screw extruder includes the first zone, the second zone, the third zone, the fourth zone, the fifth zone, the sixth zone and the seventh zone connected in sequence, and the materials pass through each zone in turn, and the working temperature of the first zone is set to 110℃, the working temperature of the secon...

Embodiment 2

[0059] A high thermal conductivity silicone rubber cable material, which comprises the following components in parts by weight:

[0060]

[0061]

[0062] The preparation method of the high thermal conductivity silicone rubber cable material provided in this embodiment is the same as that of the high thermal conductivity silicone rubber cable material provided in Example 1.

Embodiment 3

[0064] A high thermal conductivity silicone rubber cable material, which comprises the following components in parts by weight:

[0065]

[0066] The preparation method of the high thermal conductivity silicone rubber cable material provided in this embodiment is the same as that of the high thermal conductivity silicone rubber cable material provided in Example 1.

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Abstract

The invention provides a high-thermal-conductivity silicone rubber cable material and a preparation method and application thereof, and the high-thermal-conductivity silicone rubber cable material comprises specific parts of silicone rubber, a flame retardant, polydopamine modified graphene, boron nitride, silicone master batch and a silane coupling agent. According to the high-thermal-conductivity silicone rubber cable material, a combination of specific parts of boron nitride and polydopamine modified graphene is selected as a thermal conductive filler, and the boron nitride and the polydopamine modified graphene are matched in a silicone rubber matrix to form a complete thermal conductive network, so that the obtained cable material has excellent thermal conductivity; meanwhile, specific parts of the flame retardant and the silane coupling agent are also added, so that the flame retardant property and the mechanical property of the cable material are effectively improved, and the high-thermal-conductivity silicone rubber cable material meeting the dual standards of IEC62930 and UL4703 is finally obtained.

Description

technical field [0001] The invention belongs to the technical field of cable materials, and in particular relates to a high thermal conductivity silicon rubber cable material and a preparation method and application thereof. Background technique [0002] In recent years, with the development of society, the application occasions of wires and cables have become more and more extensive. At the same time, the requirements for flame retardancy, mechanical properties, electrical properties and environmental protection of wires and cables have also gradually increased. As a substitute for halogen-containing flame-retardant cable materials, low-smoke halogen-free cable materials have a wider range of applications and are more environmentally friendly, but their flame-retardant and mechanical properties face greater challenges. In the use of general low-smoke halogen-free polyolefin cable materials, due to the low melting point of polyolefins, wires and cables cannot be used at high...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K3/38C08K9/04C08K3/04C08K3/22C08K5/544H01B3/28
CPCC08L83/04H01B3/28C08L2203/202C08L2201/08C08L2201/02C08K2003/385C08K2003/2227C08K2003/2224C08K3/38C08K9/08C08K3/042C08K3/22C08K5/544
Inventor 潘卫东范魏魏郑建
Owner JIANGSU DASHENG POLYMER
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