Method for producing roughened surface geomembrane

A production method and geomembrane technology, which is applied in the field of rough geomembrane production, can solve the problems that the edge of the geomembrane is easy to slip out, the fixation is not good, and the burying operation is troublesome, so that the production method is scientific and reasonable, and the surface is rough. Good condition, good for implementation

Inactive Publication Date: 2010-06-02
SHANDONG TIANHE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The geomembrane needs to be fixed in the application construction project. The fixing method is to bury the edge, that is: bury the edge of the geomembrane, disperse the operation, the burying operation is troublesome, the burying quality is poor, and the fixing firmness is not good. The edge of the geomembrane is easy to slip out

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The production method of the rough geomembrane of the present invention is obtained by heating and plasticizing the raw material of the geomembrane of the base layer, extruding it from a screw extruder, and then cooling and shaping it with a super-strong wind. It is a multi-layer extrusion molding die head. The rough surface foaming raw material and the base layer geomembrane raw material enter the feed ports of different layers of the multi-layer extrusion molding die together, and are extruded in layers together. The rough surface foaming raw material is produced by the geotechnical The membrane material is composed of a foaming agent, and the foaming agent is nitrogen, accounting for 30% of the volume of the geomembrane material.

[0018] in:

[0019] The rough surface foaming raw material is formed by pressing inert gas into the molten high-density polyethylene, and the pressure of the inert gas is 12MPa.

[0020] The injection speed of the rough surface foaming ra...

Embodiment 2

[0023] The production method of the rough geomembrane of the present invention is obtained by heating and plasticizing the raw material of the geomembrane of the base layer, extruding it from a screw extruder, and then cooling and shaping it with a super-strong wind. It is a multi-layer extrusion molding die head. The rough surface foaming raw material and the base layer geomembrane raw material enter the feed ports of different layers of the multi-layer extrusion molding die together, and are extruded in layers together. The rough surface foaming raw material is produced by the geotechnical Composed of membrane raw material and foaming agent, the foaming agent is nitrogen, which accounts for 25% of the volume of the geomembrane raw material.

[0024] in:

[0025] The rough surface foaming raw material is formed by pressing inert gas into molten high-density polyethylene, and the pressure of the inert gas is 10MPa.

[0026] The injection speed of the rough surface foaming raw...

Embodiment 3

[0029] The production method of the rough geomembrane of the present invention is obtained by heating and plasticizing the raw material of the geomembrane of the base layer, extruding it from a screw extruder, and then cooling and shaping it with a super-strong wind. It is a multi-layer extrusion molding die head. The rough surface foaming raw material and the base layer geomembrane raw material enter the feed ports of different layers of the multi-layer extrusion molding die together, and are extruded in layers. The rough surface foaming raw material is produced by the geotechnical Composed of membrane raw material and foaming agent, the foaming agent is nitrogen, accounting for 15% of the volume of the geotechnical membrane raw material.

[0030] in:

[0031] The rough surface foaming raw material is formed by pressing inert gas into the molten high-density polyethylene, and the pressure of the inert gas is 15MPa.

[0032] The injection speed of the rough surface foaming ra...

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Abstract

The invention relates to a method for producing a roughened surface geomembrane. The roughened surface geomembrane is used for impermeable and waterproof engineering and prepared by heating and plasticizing a basic layer geomembrane raw material, extruding and forming the plasticized material by a screw extruder and cooling and shaping the shaped material by super strong wind. The method is characterized in that an extrusion forming die head is a multilayer extrusion forming die head; a roughened surface foaming raw material and the basic layer geomembrane raw material together enter feeding holes at different layers of the multilayer extrusion forming die head; and the roughened surface foaming raw material consists of a geomembrane raw material and a foaming agent, wherein the foaming agent is nitrogen and accounts for 10-30 percent of the volume of the geomembrane raw material. The invention is scientific and reasonable, simple and feasible, convenient to operate and control, beneficial to implementation and low in cost; and the obtained products have excellent surface rough condition.

Description

technical field [0001] The invention relates to a production method of a rough geomembrane, which is used in anti-seepage and waterproof projects. Background technique [0002] Geomembranes are made of polyethylene and other polyolefin resins extruded by extruders, and are widely used in landfills, tunnels, canals, reservoirs, dams, sewage pools, swimming pools, ecological pools, scenic lakes, aquaculture pools and Anti-seepage and waterproof works of railway and highway projects. The geomembrane needs to be fixed in the application construction project. The fixing method is to bury the edge, that is: bury the edge of the geomembrane, disperse the operation, the burying operation is troublesome, the burying quality is poor, and the fixing firmness is not good. The edges of the geomembrane can easily slip off. The applicant has developed geomembrane anchors in various structural forms, such as the geomembrane anchor with application number 200520200014.4, etc., which facili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/06C08J9/30
Inventor 孙天智王洪祥王本帅
Owner SHANDONG TIANHE PLASTIC
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