New high pressure hdpe water pipe

A high pressure, water pipe technology, applied in the field of pipelines, can solve the problems of low compressive strength, easy corrosion and rust of pipes, poor impact resistance, etc., and achieves the effects of good strength, high applicability, and good impact resistance.

Active Publication Date: 2017-11-07
河北鑫鹏通信设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a new type of high-pressure HDPE water pipe to solve the technical problems of existing pipes such as easy corrosion and rust, poor impact resistance, and low compressive strength.

Method used

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  • New high pressure hdpe water pipe
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: 50 parts by weight of HDPE resin, composite filler (by weight percentage: silicon dioxide 58%, hematite 7%, calcium sulfate whisker 5%, wollastonite 5%, sodalite 10 %, calcium carbonate 15%) and 5 parts are mixed and put into the hopper of the first extruder; 50 parts of HDPE resin (high-density polyethylene), 0.2 part of sorbitol, and 5 parts of thermoplastic polyurethane elastomer are put into the second extruder according to the weight ratio. Taiwan extruder hopper; 80 parts of HDPE resin, 5 parts of calcium carbonate, 1 part of calcium stearate, 2 parts of nano-scale titanium dioxide, tetrakis[β-(3,5-di-tert-butyl-4-hydroxy 0.3 parts of phenyl) propionic acid] pentaerythritol ester, 0.3 parts of phenyl o-hydroxybenzoate, and 0.2 parts of polyethylene wax are mixed and put into the hopper of the third extruder; during production, the first extruder extrudes 5 HDPE core tubes After the extruded HDPE core tube 5 is water-cooled and sized, the stainless st...

Embodiment 2

[0017] Embodiment 2: by weight 50 parts of HDPE resin, composite filler (by weight percentage: silicon dioxide 50%, hematite 7%, calcium sulfate whisker 10%, wollastonite 10%, sodalite 5% %, calcium carbonate 15%) and 5 parts are mixed and put into the hopper of the first extruder; 50 parts of HDPE resin (high density polyethylene), 0.7 part of sorbitol, and 3 parts of thermoplastic polyurethane elastomer are put into the second extruder according to the weight ratio In the hopper of the extruder; by weight 83 parts of HDPE resin, 8 parts of calcium carbonate, 3 parts of calcium stearate, 2 parts of nano-sized titanium dioxide, tetrakis [β-(3,5-di-tert-butyl-4-hydroxybenzene base) propionic acid] 0.4 part of pentaerythritol ester, 0.4 part of phenyl o-hydroxybenzoate, and 0.2 part of polyethylene wax are mixed and put into the hopper of the third extruder; the production method is the same as above.

Embodiment 3

[0018] Embodiment 3: 50 parts by weight of HDPE resin, 5 parts of composite filler (by weight percentage: silicon dioxide 60%, hematite 4%, calcium sulfate whisker 10%, wollastonite 10%, soda Stone 5%, calcium carbonate 8%) 5 parts are mixed and put into the hopper of the first extruder; 50 parts of HDPE resin (high density polyethylene), 1.1 parts of sorbitol, and 8 parts of thermoplastic polyurethane elastomer are put into the first extruder according to the weight ratio In the hopper of two extruders; 85 parts of HDPE resin, 10 parts of calcium carbonate, 5 parts of calcium stearate, 3 parts of nano-scale titanium dioxide, tetrakis[β-(3,5-di-tert-butyl-4 -Hydroxyphenyl) propionic acid] 0.5 part of pentaerythritol ester, 0.5 part of phenyl o-hydroxybenzoate, 0.3 part of polyethylene wax in the hopper of the third extruder; the production method is the same as above.

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Abstract

Disclosed is a novel high pressure resistant high-density polyethylene (HDPE) water pipe. An HDPE core tube is arranged on an innermost layer of the water pipe, a first stainless steel wire mesh layer is wrapped on the outside of the HDPE core tube, an HDPE intermediate combined layer is wrapped on the outside of the first stainless steel wire mesh layer, a second stainless steel wire mesh layer is wrapped on the outer wall of the HDPE intermediate combined layer, and an HDPE weather-proof layer is wrapped on the outside of the second stainless steel wire mesh layer. The novel high pressure resistant HDPE water pipe has the advantages of being high in performances, applicability and bonding strength, non-toxic, non-irritant, corrosion resistant, not prone to be rusted and the like. The polyethylene weather-proof layer can be resistant to corrosion of various corrosive media such as acids, alkali, salt and organic solvents and is not like materials such as steel tubes which can produce electrocorrosion and foster corrosion damage, and the service life of the polyethylene weather-proof layer can reach to 50 years. By means of the first and second stainless steel wire mesh layers, the compressive strength of a high strength HDPE corrugated pipe can be improved, and the high strength HDPE corrugated pipe is not prone to crack and simultaneously has a good shock resistance.

Description

technical field [0001] The invention relates to a pipe, in particular to a novel high-pressure-resistant HDPE water pipe. Background technique [0002] Water supply and drainage pipes are widely used in water supply and drainage fields such as roads, railway subgrades, subway projects, waste landfills, tunnels, green belts, sports fields, etc., as well as underground irrigation and drainage systems for agriculture and horticulture. Because traditional metal water supply and drainage pipes are buried underground for a long time, they are particularly prone to corrosion and rust, and even cause serious problems such as perforation and blockage. At present, the steel-plastic composite pipe is developing rapidly, and it is constantly replacing various metal pipes and other traditional material pipes in various fields. As disclosed in Chinese utility model patent 200920158238.1, a new type of HDPE steel-plastic drainage and sewage pipe is composed of a protective layer, a reinfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/147C08L23/06C08L75/04C08K5/053C08K13/04C08K7/08C08K13/02
CPCY02A20/20
Inventor 周伟林风郭翠芳
Owner 河北鑫鹏通信设备有限公司
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