Anti-aging PVC ground pipe

An anti-aging and grounding technology, which is applied in the field of pipes and plastic pipes, can solve the problems of low deformation resistance and high bending degree of pipes, and achieve the effects of enhancing deformation resistance, improving quality, good aging resistance and deformation resistance

Inactive Publication Date: 2005-11-23
河北宝硕管材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the inner wall of ordinary PVC pipe is a smooth cylinder, which has low deformation resistance and high bending degree of the pipe.

Method used

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  • Anti-aging PVC ground pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 2 3 4

[0017] SG-5 type polyvinyl chloride PVC resin 150 150 150 150

[0018] FJ304 lead stearate stabilizer 2.3 2.4 2.5 2.5

[0019] Lead phosphite di-salt 0.9 1.1 1.2 1.2

[0020] Titanium dioxide (rutile type) 1.2 1.4 1.6

[0021] Chlorinated polyethylene (CPE) 4.5 4.7 5.0 4.9

[0022] Acrylate copolymer (ACR-201) 0.6 0.7 0.8 0.75

[0023] UV329 type ultraviolet absorber

[0024] (2-(2'-Hydroxy-5'-tertoctylphenyl)benzotriazole) molecular formula: C 20 h 25 N 30

[0025] 0.1 0.2 0.25 0.22

[0026] Polyethylene wax 0.15 0.17 0.2 0.18

[0027] Stearic acid (C 17 h 35 COO) 0.1 0.05 0.08 0.07

[0028] Light calcium carbonate (CaCO 3 ) 8 5 6 7

[0029] Carbon black 0.03 0.05 0.04 0.05

[0030] Example 5 6 7 8

[0031] SG-5 type polyvinyl chloride PVC resin 150 150 150 150

[0032] FJ304 lead stearate stabilizer 2.4 2.35 2.3 2.5

[0033] Lead phosphite di-salt 0.9 1.0 1.2 1.1

[0034] Titanium d...

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Abstract

This invention relates to an aging resistant PVC above-ground pipe, which belongs to plastic pipe field. The improved PVC above-ground pipe comprises the following raw materials: polykoroseal 150, lead stearate stabilizer 2.3-2.5, phosphate lead 0.9-1.2,chlorinated polyethylene 4.5-5.0,copolyester copolymer 0.6-0.8,ultraviolet absorbent 0.1-0.25,and light calcium carbonate 5.0-8.0. The invention is designed specially for farmland surface irrigation, adding ultraviolet absorbent, dibasic lead phosphate and rutile type powder, which can delay the material degradation and increase life time. It also adds trapezoidal dabber in the entine of the pipe, which can enhance the resistance to deformation and decrease the bending of the pipe.

Description

technical field [0001] The invention relates to a pipe material, in particular to a farmland surface irrigation pipe with high anti-aging ability for transporting irrigation water, and belongs to the technical field of plastic pipe materials. Background technique [0002] With the continuous advancement of science and technology, PVC materials are more and more widely used in various fields. For example, various water supply and drainage pipes made of PVC materials have gradually replaced metal pipes due to their unique characteristics of light weight, flame retardancy, acid and alkali resistance, easy processing, and high durability. At present, the irrigation water pipes used for farmland irrigation mostly use PVC pipes. The main problem of this kind of pipes is that in areas with dry, little rain and strong ultraviolet rays, the special conditions of use make ordinary PVC ground water pipes very easy to cause material damage. Degradation and premature aging will seriousl...

Claims

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Application Information

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IPC IPC(8): B32B1/08
Inventor 刘卫政刘铁成
Owner 河北宝硕管材有限公司
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