High-strength porous casing and pipeline parts of nano polyvinyl chloride and their production process

A polyvinyl chloride and polyvinyl chloride resin technology, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problems of fragility, affecting the quality of buried pipes, low strength and toughness, etc., and achieve mechanical properties Good, light weight, convenient construction effect

Inactive Publication Date: 2003-01-08
周辉 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has the characteristics of corrosion resistance, light weight and low cost, its strength and toughness are small, and it is easily broken when the road is rolled and rolled, thus affecting the quality of buried pipelines

Method used

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  • High-strength porous casing and pipeline parts of nano polyvinyl chloride and their production process
  • High-strength porous casing and pipeline parts of nano polyvinyl chloride and their production process
  • High-strength porous casing and pipeline parts of nano polyvinyl chloride and their production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Production casing:

[0029] (1) Ingredients: (by weight) nano polyvinyl chloride resin: 100, heat stabilizer: 3, lubricant: 2, impact modifier: 8, processing modifier: 2, flame retardant: 4 mixed preparation;

[0030] (2) Stirring: Stir the prepared raw materials in a high-speed mixer until the temperature reaches 105°C, then stir in a low-speed cold mixer to cool down to 60°C, and put them into the storage bin for standby;

[0031] (3) Extrusion: Use 65 or 55 twin-screw extruder to extrude the stirred material into the billet;

[0032] (4) Vacuum shaping: formed into a porous casing, such as figure 1 As shown, the casing structure is a bioengineering honeycomb arrangement with the closest packing of regular hexagonal lumens, such as figure 2 , image 3 As shown, the inner surface of the casing cavity is provided with imitation bioengineering spine-convex ribs;

[0033] (5) Cut to length;

[0034] (6) Inspection, packaging, storage.

[0035] (2) Production o...

Embodiment 2

[0044] (1) Process steps for producing casing:

[0045] (1) Ingredients: (by weight) nano polyvinyl chloride resin: 100, heat stabilizer: 3.5, lubricant: 3, impact modifier: 10, processing modifier: 2.5, flame retardant: 3 mixed preparation;

[0046] (2) Stirring: Stir the prepared raw materials in a high-speed mixer until the temperature reaches 100°C, then stir in a cooling mixer to cool down to 60°C, and put them into the storage bin for standby;

[0047] (3) Extrusion: Use 65 or 55 twin-screw extruder to extrude the stirred material into the billet;

[0048] (4) Vacuum shaping: formed into a porous casing, such as figure 1 As shown, the casing structure is a bioengineering honeycomb arrangement with the closest packing of regular hexagonal lumens, such as figure 2 , image 3 As shown, the inner surface of the casing cavity is provided with imitation bioengineering spine-convex ribs;

[0049] (5) Cut to length;

[0050] (6) Inspection, packaging, storage.

[0051] (...

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PUM

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Abstract

The invention discloses a nano PVC high-strength multiaperture casing pipe and pipe fitting as well as the production method. The main components are nano PVC ester, heat-stabilizing agent, lubricant, shock-resistant denaturing agent, process denaturing agent, combustion-preventing agent; the method of producing the casing pipe includes the following steps: preparing the materials, stirring, extruding, vacuum shaping, fixed-length cutting-off, testing, packing and being put in storage; the method of producing pipe fitting includes the following in-order technical steps: preparing the materials, stirring, making the particles, injection moulding, cool shaping, trimming, testing, packing and being put in storage. The invention has the characters of light weight, corrosion resistance, good mechanical capability, higher compression strength, convenient construction and so on.

Description

technical field [0001] The invention relates to a casing for underground wire embedding, in particular to a nano-polyvinyl chloride high-strength porous casing, a pipe fitting and a production method thereof. Background technique [0002] At present, most of the underground pipes used in urban construction are made of polyvinyl chloride materials, such as pressure-bearing sanitary pipes and pipe fittings for urban construction, water supply and drainage pipes and pipe fittings for buildings, porous casings for electric power, high-voltage cable pipes, and sky pipes. Gas gas pipes, etc., are all made of polyvinyl chloride. Although it has the characteristics of corrosion resistance, light weight and low cost, its strength and toughness are small, and it is easily broken when the road surface is rolled and rolled, thus affecting the quality of the buried pipeline. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/08C08L27/06C08L27/08F16L9/12
Inventor 周辉强越李志刚
Owner 周辉
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