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Heat-resistant insulating MPP cable tube and preparation method thereof

A heat-resistant insulation and cable tube technology, which is used in tubular articles, other household appliances, applications, etc., can solve problems such as poor insulation and heat resistance, low efficiency of cable tube production process, and inability to ensure circulating cooling of cable tubes. , to achieve the effect of improving production efficiency, high crystallinity and high modulus

Active Publication Date: 2021-04-09
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, in the production process of the existing MPP cable tubes, cooling is required after extrusion. The existing cooling equipment cannot guarantee the circulation cooling of the cable tubes, resulting in the entire Inefficient production process for cable ducts

Method used

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  • Heat-resistant insulating MPP cable tube and preparation method thereof
  • Heat-resistant insulating MPP cable tube and preparation method thereof
  • Heat-resistant insulating MPP cable tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A heat-resistant insulating MPP cable tube, prepared from the following raw materials in parts by weight: 50 parts of isotactic polypropylene resin, 5 parts of block copolymerized polypropylene, 2 parts of olefin block copolymerized elastomer OBC, and 0.5 parts of heat-resistant and insulating functional masterbatch Parts, 10 parts of ultra-high molecular weight polyethylene resin;

[0031] Wherein, the preparation process of the heat-resistant insulating MPP cable pipe is as follows:

[0032] Step 1: Add isotactic polypropylene resin, block copolymerized polypropylene, olefin block copolymerized elastomer OBC, heat-resistant insulation functional masterbatch, and ultra-high molecular weight polyethylene resin into a high-speed mixer and mix evenly, and mix evenly to obtain modification resin;

[0033] Step 2: Add the modified resin into the screw extruder 1 of the extrusion cooling equipment, and the extrusion cooling equipment melts and extrudes the modified resin to...

Embodiment 2

[0037] A heat-resistant insulating MPP cable tube, prepared from the following raw materials in parts by weight: 85 parts of isotactic polypropylene resin, 15 parts of block copolymerized polypropylene, 6 parts of olefin block copolymerized elastomer OBC, and 4 parts of heat-resistant and insulating functional masterbatch Parts, 25 parts of ultra-high molecular weight polyethylene resins;

[0038] Wherein, the preparation process of the heat-resistant insulating MPP cable pipe is as follows:

[0039] Step 1: Add isotactic polypropylene resin, block copolymerized polypropylene, olefin block copolymerized elastomer OBC, heat-resistant insulation functional masterbatch, and ultra-high molecular weight polyethylene resin into a high-speed mixer and mix evenly, and mix evenly to obtain modification resin;

[0040] Step 2 is the same as in Example 1.

[0041] Specifically, the heat-resistant and insulating functional masterbatch is prepared through the following steps: surface-tre...

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Abstract

The invention discloses a heat-resistant insulating MPP cable tube and a preparation method thereof, the prepared heat-resistant insulating MPP cable tube has the characteristics of high Vicat softening point, high modulus and low-temperature brittleness by adding isotactic polypropylene, and the prepared heat-resistant insulating MPP cable tube has good wear resistance by adding ultra-high molecular weight polyethylene. According to measurement of GB / T 8802-2001, the Vicat softening point of the prepared heat-resistant insulating MPP cable tube is 154-163 DEG C. Meanwhile, the invention discloses extrusion cooling equipment which is provided with a plurality of circulating channels, so that circulating cooling of a plurality of cable tubes can be met at the same time, the cooling efficiency of the cable tubes is high, the extrusion cooling equipment can complete cooling of the bottom cable tube while cutting, conveying and cutting the top cable tube, and the production efficiency of the cable tube is greatly improved.

Description

technical field [0001] The invention relates to the technical field of MPP cable tube processing, in particular to a heat-resistant insulating MPP 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, in the production process of the existing MPP cable tubes, cooling is required after extrusion. The existing cooling equipment cannot guarantee the circulation cooling of the cable tubes, resulting in the entire The production process for cable ducts is not efficient. Contents of the invention [0003] The purpose of the present invention is to provide a heat-resistant insulating MPP cable pipe and its prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L53/00C08L23/06C08K13/06C08K9/04C08K3/22B29D23/00
CPCC08L23/12B29D23/001C08L2205/025C08L2205/035C08L2201/08C08L2203/18C08L2207/10C08L2207/068C08L2203/202C08K2003/2255C08K2003/2251C08L53/00C08L23/06C08K13/06C08K9/04C08K9/08C08K3/22
Inventor 刘俊峰濮阳龙华余水云扶银
Owner ANHUI JIELANTE NEW MATERIAL CO LTD
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