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Flexible polypropylene cable sheath material

A technology of cable sheath material and polypropylene, which is applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc. It can solve problems such as stress whitening, limited expansion and application, and insufficient softness of cable materials, so as to increase weight, Good flexibility, the effect of expanding the application range

Inactive Publication Date: 2015-07-01
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the high hardness structure of polypropylene itself makes the cable material prepared by it not soft enough, and there is obvious stress whitening phenomenon when bending, and its low temperature resistance performance is far behind that of polyethylene cable material.
This limits its further expansion and application in the field of wires and cables, especially those with strict requirements on low temperature performance or stress whitening

Method used

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  • Flexible polypropylene cable sheath material
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  • Flexible polypropylene cable sheath material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of flexible polypropylene cable sheath material is prepared, comprising the following components:

[0021]

[0022] Select the raw materials according to the stated components and proportions, mix the accurately weighed resin and additives fully in a high-speed mixer, and then extrude them in a feeding extrusion granulation mixing type twin-screw extrusion granulator. For granulation, the extrusion process temperature is set as follows: feeding section 160°C, mixing section 190°C, extrusion granulation section 200°C, head part 210°C; after granulation, dry to obtain cable sheathing material.

[0023] The properties of the prepared cable materials are shown in Table 1.

Embodiment 2

[0025] In the cable material formula, the name of each component and the proportion of each component by weight are as follows:

[0026]

[0027] Processes such as mixing and extrusion granulation are the same as in Example 1. The properties of the prepared cable materials are shown in Table 1. Example 3

Embodiment 3

[0028] In the cable material formula, the name of each component and the proportion of each component by weight are as follows:

[0029]

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Abstract

The invention relates to a flexible polypropylene cable sheath material. The material comprises the following components by weight: 100 parts of polypropylene resin, 60 to 120 parts of a flexible modifier, 0.5 to 2 parts of a lubricant, 0.5 to 1 part of an anti-oxidant and 0.2 to 0.5 part of an anti-copper agent. The flexible polypropylene cable sheath material has good low temperature resistance and flexibility and can effectively improve original stress whitening of a polypropylene cable material and enhance low temperature resistance of the polypropylene cable material.

Description

technical field [0001] The invention relates to a soft polypropylene cable sheathing material, which belongs to the field of cable materials. Background technique [0002] Polypropylene cable material has a very good application in wire and cable because of its very good high temperature resistance, good processability, and very good electrical insulation performance. It is an indispensable and important part of cable materials. [0003] With the in-depth research on polypropylene cable materials and the increasingly diverse requirements for the performance of cable materials, the defects caused by the structural characteristics of polypropylene cable materials are gradually exposed. In particular, the high hardness structural characteristics of polypropylene itself make the cable material prepared by it not soft enough, and there is obvious stress whitening phenomenon when bending, and its low temperature resistance performance is far behind that of polyethylene cable mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L23/06C08K5/134C08K5/098H01B3/44B29C47/92B29C48/92
CPCC08L23/12C08L2203/202C08L2205/02C08L2205/03C08L2205/035C08L2207/064H01B3/441C08L23/0853C08L23/06C08K5/098C08L23/0815
Inventor 吴芳芳段春来
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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