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Modified HDPE (High-Density Polyethylene) double-wall corrugated pipe and manufacturing method thereof

A technology of double-wall corrugated pipe and manufacturing method, which is applied to rigid pipes, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of low ring rigidity and low drop impact strength, and achieves low creep rate, lightening Effect of unit weight, improved drop impact strength and ring stiffness

Inactive Publication Date: 2013-12-25
TIANJIN SHENGXIANG PLASTIC PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, the biggest problem affecting HDPE double-wall corrugated pipes for buried use, especially large-diameter HDPE double-wall corrugated pipes, is the low ring rigidity and low drop-weight impact strength.

Method used

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  • Modified HDPE (High-Density Polyethylene) double-wall corrugated pipe and manufacturing method thereof
  • Modified HDPE (High-Density Polyethylene) double-wall corrugated pipe and manufacturing method thereof
  • Modified HDPE (High-Density Polyethylene) double-wall corrugated pipe and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Modified HDPE double-wall corrugated pipe production materials and their mass parts are:

[0025] inner layer:

[0026]

[0027] Outer layer:

[0028] HDPE 100 parts

[0029] Modified ultrafine glass beads 15 parts

[0030] 5 parts of coupling agent

[0031] Lubricant 5 parts.

[0032] The modified ultrafine glass microspheres have a particle diameter of 3 μm. Its preparation method is:

[0033] Step 1: Dilute the ethanol solution and the silane coupling agent at a ratio of 1:3, and adjust the pH to 0.4;

[0034] Step 2: Add the dry ultrafine glass beads into the high-speed mixer, add the solution prepared in step 1 while stirring, and take it out after fully stirring for 30 minutes;

[0035] Step 3: drying at 80° C. for 3 hours to prepare the modified ultrafine glass beads.

[0036] The coupling agent is aluminate; the lubricant is paraffin.

[0037] The manufacture method of the modified HDPE double-wall corrugated pipe made according to the above formula ...

Embodiment 2

[0046] Modified HDPE double-wall corrugated pipe production materials and their mass parts are:

[0047] inner layer:

[0048]

[0049] Outer layer:

[0050] HDPE 120 parts

[0051] 25 parts of modified ultrafine glass beads

[0052] 10 parts of coupling agent

[0053] Lubricant 10 parts.

[0054] The modified ultrafine glass microspheres have a particle diameter of 7 μm. Its preparation method is:

[0055] Step 1: Dilute the ethanol solution and the silane coupling agent at a ratio of 1:3, and adjust the pH to 0.4;

[0056] Step 2: Add the dry ultrafine glass beads into the high-speed mixer, add the solution prepared in step 1 while stirring, and take it out after fully stirring for 30 minutes;

[0057] Step 3: drying at 80° C. for 3 hours to prepare the modified ultrafine glass beads.

[0058] The coupling agent is aluminate or titanate or stearic acid; the lubricant is wax.

[0059] The manufacture method of the modified HDPE double-wall corrugated pipe made acc...

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Abstract

The invention discloses a manufacturing material of a modified HDPE (High-Density Polyethylene) double-wall corrugated pipe. The manufacturing material comprises the following components in parts by weight: 100-120 parts of HDPE, 15-25 parts of modified ultrafine glass microbead, 5-10 parts of coupling agent and 5-10 parts of lubricating agent at the outer layer, 100-120 parts of HDPE, 30-40 parts of HDPE recovery material, 15-25 parts of modified ultrafine glass microbead, 5-10 parts of coupling agent and 5-10 parts of lubricating agent at the inner layer. The manufacturing material disclosed by the invention has the beneficial effects that organic modified ultrafine glass microbeads are used as a filler for manufacturing the double-wall corrugated pipe, so that the drop-hammer impact strength and the ring stiffness can be effectively improved, the creep rate of the organic modified ultrafine glass microbeads filled into the HDPE double-wall corrugated pipe is low, and the unit weight can be effectively reduced under the condition of not influencing the physical property of the double-wall corrugated pipe.

Description

technical field [0001] The invention relates to the field of double-wall corrugated pipe manufacturing, in particular to a modified HDPE double-wall corrugated pipe and a manufacturing method thereof. Background technique [0002] Double-wall corrugated pipe is a new type of pipe with a corrugated outer wall and a smooth inner wall. At present, it has been widely used as buried drainage pipes, underground cable pipes, etc., to a considerable extent to replace traditional cast iron pipes, cement pipes, ordinary plastic pipes, and winding corrugated pipes. At present, the main varieties of double-wall corrugated pipes are polyvinyl chloride (PVC) and high-density polyethylene (HDPE). HDPE double-wall corrugated pipe is more widely used because of its strong corrosion resistance, not easy to scale on the surface, small frictional resistance, excellent weather resistance, good processing performance and long service life. But at present, the biggest problem affecting HDPE doub...

Claims

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Application Information

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IPC IPC(8): F16L9/12H02G9/06C08L23/06C08K9/06C08K7/20B29C47/92B29C47/06B29C48/92
CPCB29C48/92Y02P70/10
Inventor 田颖闫晓飞刘中卫
Owner TIANJIN SHENGXIANG PLASTIC PIPE IND
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