Insulating flame-retardant MPP power cable tube and preparation method thereof

A cable tube and power technology, which is applied in the field of insulation and flame retardant MPP power cable tube and its preparation, can solve the problems of poor insulation and heat resistance, inconvenient cutting of multi-strand cables, and intertwining of multi-strand cable tubes.

Inactive Publication Date: 2021-05-18
ANHUI JIELANTE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The insulation and heat resistance of the existing MPP cable tubes are not good. At the same time, the production of MPP cable tubes needs to be cut. The existing cutting equipment is inconvenient to cut multi-strand cables, even if the equipment for multi-strand cable cutting In the process of cu

Method used

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  • Insulating flame-retardant MPP power cable tube and preparation method thereof
  • Insulating flame-retardant MPP power cable tube and preparation method thereof
  • Insulating flame-retardant MPP power cable tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The Vicat softening point of the insulating flame-retardant MPP power cable tube of Example 1 is 160°C.

Embodiment 2

[0037] An insulating and flame-retardant MPP power cable tube, prepared from the following raw materials in parts by weight: 95 parts of isotactic polypropylene resin, 12 parts of block copolymerized polypropylene, 8 parts of olefin block copolymerized elastomer OBC, insulating and flame-retardant functional matrix 4 parts of grains, 28 parts of ultra-high molecular weight polyethylene resin;

[0038] All the other steps are the same as in Example 1.

[0039] Specifically, the insulating and flame-retardant functional masterbatch is prepared through the following steps: surface-treat the nano-red powder with a surface synergist and a hyperdispersant in an atomized spraying manner, and obtain a pre-treated nano-red powder after drying , standby, by weight, take 55 parts of block copolymer polypropylene resin, 3 parts of pretreated nano red powder, 3 parts of nano yellow powder, 5 parts of lubricant, 6 parts of processing aid, 2 parts of antioxidant 4 parts, 4 parts of light st...

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Abstract

The invention discloses an insulating flame-retardant MPP power cable tube and a preparation method thereof. According to the insulating flame-retardant MPP power cable tube and the preparation method thereof, isotactic polypropylene is high in crystallinity, and the prepared insulating flame-retardant MPP power cable tube has the characteristics of high vicat softening point, high modulus and low-temperature brittleness by adding the isotactic polypropylene; by adding ultra-high molecular weight polyethylene, the wear resistance of the prepared insulating flame-retardant MPP cable tube is good, and according to GB/T 8802-2001 measurement, the Vicat softening point of the prepared insulating flame-retardant MPP cable tube is 160-168 DEG C; meanwhile, the invention discloses cutting equipment, the cutting equipment can convey multiple strands of cable tubes at the same time; meanwhile, limiting rollers are matched with conveying, then conveying of the cable tubes with different diameters can be met; and meanwhile, the situation that multiple strands of cable tubes are mutually wound during conveying is avoided.

Description

technical field [0001] The invention relates to the technical field of cable tube production, in particular to an insulating and flame-retardant MPP power cable tube and a preparation method thereof. Background technique [0002] MPP power pipes are divided into ordinary type and reinforced type, and reinforced type is divided into excavated pipe and non-excavated pipe. The so-called MPP non-excavated pipe is also called MPP jacking pipe, MPP pulling pipe, and MPP traction pipe. The insulation and heat resistance of the existing MPP cable tubes are not good. At the same time, the production of MPP cable tubes needs to be cut. The existing cutting equipment is inconvenient to cut multi-strand cables, even if the equipment for multi-strand cable cutting In the process of cutting and conveying, it is easy for multiple cable tubes to be entangled with each other. At the same time, the waste generated during the cutting of the cable tube will be adsorbed on the entire peripheral ...

Claims

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Application Information

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IPC IPC(8): B29C48/09B29C48/27H02G3/04B26D3/16B26D7/18
CPCB29C48/09B29C48/0022B29C48/274B26D3/16B26D7/1863H02G3/045
Inventor 刘俊峰刘文江汪进南曹操梅丽周文军万刚
Owner ANHUI JIELANTE NEW MATERIAL CO LTD
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