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High-weather-resistance PE pipe and manufacturing method thereof

A high weather resistance and modification technology, applied in the field of polyethylene pipe production, can solve the problems of shortening the service life of PE pipes, accelerated aging and degradation of polyethylene pipes, etc. The effect of increasing the gathering density

Inactive Publication Date: 2020-03-27
湖北凯科塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, the expected life of PE pipes in modern industrial applications is 50 years, but in the actual fluid transportation process, polyethylene pipes will be affected by surrounding environmental factors and accelerate aging and degradation, which greatly shortens the service life of PE pipes

Method used

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  • High-weather-resistance PE pipe and manufacturing method thereof
  • High-weather-resistance PE pipe and manufacturing method thereof
  • High-weather-resistance PE pipe and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027]A high weather resistance PE pipe, the raw material components are shown in Table 1, and all components are expressed in parts by weight. Prepared through the following steps: Weigh polyethylene base resin, polydimethylsiloxane grafted polyethylene resin, silane-modified epoxy resin, bamboo charcoal and polyethylene wax in parts by weight and mix uniformly, extrude with a single screw The extruder is extruded to form a pipe, and the temperature of the mixture melt is controlled at 180-200°C during extrusion. The linear low density polyethylene resin of this embodiment is a polyethylene resin obtained by copolymerization of ethylene and 1-butene.

Embodiment 2

[0029] A high weather resistance PE pipe, the raw material components are shown in Table 1, and all components are expressed in parts by weight. Prepared through the following steps: Weigh polyethylene base resin, polymethylphenylsiloxane grafted linear low-density polyethylene resin, silane-modified epoxy resin, carbon nanotubes and paraffin wax in parts by weight and mix uniformly, A single-screw extruder is used to extrude a pipe, and the temperature of the mixture melt is controlled at 180-200°C during extrusion. The linear low density polyethylene resin of this embodiment is a polyethylene resin obtained by copolymerization of ethylene and 1-hexene.

Embodiment 3

[0031] A high weather resistance PE pipe, the raw material components are shown in Table 1, and all components are expressed in parts by weight. Prepared through the following steps: Weigh polyethylene base resin, methyl vinyl polysiloxane grafted linear low-density polyethylene resin, silane-modified epoxy resin, lanthanum chromate and silicone oil in parts by weight and mix them uniformly, A single-screw extruder is used to extrude a pipe, and the temperature of the mixture melt is controlled at 180-200°C during extrusion. The linear low density polyethylene resin of this embodiment is a polyethylene resin obtained by copolymerization of ethylene and 1-octene.

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Abstract

The invention belongs to the technical field of polyethylene pipe production, and discloses a high-weather-resistance PE pipe and a manufacturing method thereof. The high-weather-resistance PE pipe isprepared from, by weight, 100-120 parts of polyethylene base resin, 3-5 parts of organosilicone modified polyethylene resin, 5-6 parts of silane modified epoxy resin, 5-15 parts of a conductive material and 4-6 parts of a dispersing agent; wherein the polyethylene base resin is polyethylene resin polymerized by taking ethylene as a monomer; polyethylene resin in the organosilicone modified polyethylene resin is linear low-density polyethylene resin, and polyethylene resin is obtained through copolymerization of ethylene and alpha-olefin. The high-weather-resistance PE pipe has high weather resistance and can effectively resist the influence of surrounding environment media, and the service life of the PE pipe is prolonged.

Description

technical field [0001] The invention belongs to the technical field of polyethylene pipe production, in particular to a highly weather-resistant PE pipe and a manufacturing method thereof. Background technique [0002] Polyethylene (PE) pipes are widely used in water supply and drainage, gas transmission and many other fields due to their advantages of low cost, good corrosion resistance and long service life. The application of polyethylene pipes in foreign countries was earlier. Since 1950, high-density polyethylene has been developed in pipes and quickly became the pipe material with the largest market share. In general, the expected life of PE pipes in modern industrial applications is 50 years, but in the actual fluid transportation process, polyethylene pipes will be affected by surrounding environmental factors and accelerate aging and degradation, which greatly shortens the service life of PE pipes. [0003] In general, the service life of PE pipes depends on four k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L83/10C08L63/00C08L91/06C08L83/04C08L5/08C08K3/04C08K3/22C08K5/07C08K5/132
CPCC08L23/06C08L2203/18C08L2201/04C08L2201/08C08L2205/025C08L2205/035C08K2201/001C08K2201/011C08K2003/2251C08K2003/2231C08L83/10C08L63/00C08K3/04C08L91/06C08K3/041C08L83/04C08K3/22C08L5/08C08K3/042C08K5/07C08K5/132
Inventor 李继成
Owner 湖北凯科塑业有限公司
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