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Double-wall hollow winding pipe and preparation method thereof

A winding tube, hollow technology, applied in the direction of tubes, rigid tubes, mechanical equipment, etc., can solve the problems of limitation and singleness, and achieve the effect of blocking damage, delaying the aging speed, and protecting the color.

Inactive Publication Date: 2020-08-14
史先锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the resin material for the production of double-wall hollow winding pipes is a single resin, which also limits the use of their respective advantages to some extent.

Method used

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  • Double-wall hollow winding pipe and preparation method thereof
  • Double-wall hollow winding pipe and preparation method thereof
  • Double-wall hollow winding pipe and preparation method thereof

Examples

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Effect test

preparation example Construction

[0049] The preparation method of the double-walled hollow winding tube 100 according to the embodiment of the present invention, such as figure 1 As shown, it includes the following steps: S1. According to the formula of surface layer 11, take the base resin, weather-resistant masterbatch, color masterbatch and surface layer reinforcement masterbatch and add them to the mixing mixer, stir and mix and banbury to collect the surface layer compound, and then press For the formula of the inner wall layer 13, take the base resin, carbon black masterbatch, and inner wall layer reinforced masterbatch and add them to the mixing mixer, stir and mix and banbury to collect the inner wall layer compound material; S2, combine the surface layer compound material, bonding resin and inner wall layer The layered composite materials are respectively placed in three different extruders, co-extruded into the mixing die through the die distributor, and extruded to prepare the base pipe body 10; S3,...

Embodiment 1

[0053] (1) Determine the formula of the surface layer 11 of the double-wall hollow wound pipe 100 and prepare the surface layer mixture:

[0054] HDPE resin: 100 parts;

[0055] Weather-resistant masterbatch: 3 parts;

[0056] Color masterbatch: 1 part;

[0057] The surface layer 11 of the double-walled hollow winding pipe 100 is prepared according to the above formula, wherein the weather resistance additive is prepared by mixing hindered amine light stabilizer, ultraviolet absorber, composite antioxidant, dispersant and coupling agent, and then PE resin For matrix resin, according to the added mass of 35%, weather-resistant additives are added to matrix resin, and mixed to prepare weather-resistant masterbatch.

[0058] A color masterbatch is prepared by mixing PE resin, rutile titanium dioxide, a dispersant and a coupling agent, and the addition amount of the rutile titanium dioxide is controlled at 60% to prepare a color masterbatch.

[0059] (2) Determine the formula o...

Embodiment 2

[0068] (1) Determine the formula of the surface layer 11 of the double-wall hollow wound pipe 100 and prepare the surface layer mixture:

[0069] PP resin: 100 parts;

[0070] Weather-resistant masterbatch: 3 parts;

[0071] Color masterbatch: 1 part;

[0072] The PP resin is a resin prepared by mixing a homopolymer PP resin and a copolymer PP resin at a mass ratio of 1:1.

[0073] Prepare the surface layer 11 of the double-walled hollow winding tube 100 according to the above formula, wherein the weather resistance additive is prepared by mixing hindered amine light stabilizer, ultraviolet absorber, composite antioxidant, dispersant and coupling agent, and then PP resin For matrix resin, according to the added mass of 35%, weather-resistant additives are added to matrix resin, and mixed to prepare weather-resistant masterbatch.

[0074] A color masterbatch is prepared by mixing PE resin, rutile titanium dioxide, a dispersant and a coupling agent, and the addition amount of...

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Abstract

The invention discloses a double-wall hollow winding pipe and a preparation method thereof. The double-wall hollow winding pipe comprises a matrix pipe body and a welding layer, wherein the matrix pipe body forms a hollow pipe-shaped part; and the welding layer is arranged on the outer circumferential surface of the matrix pipe body and forms a plastic part; a surface layer is as same as the welding layer in material, and the surface layer comprises the following components in parts by weight: 100 parts of basic resin, 1-5 parts of weather-proof mater batch, 0-5 parts of color master batch and0-20 parts of surface layer enhancing master batch. The double-wall hollow winding pipe according to the embodiment of the invention is high in mechanical strength and excellent in weatherproofness,so that the service life of the double-wall hollow winding pipe outdoors is improved greatly and the application range of the double-wall hollow winding pipe is expanded.

Description

technical field [0001] The invention belongs to the technical field of pipes, and in particular relates to a double-walled hollow winding pipe and a preparation method of the double-walled hollow winding pipe. Background technique [0002] The double-wall hollow winding pipe has the advantages of light weight, large size, strong rigidity, long life, convenient transportation and installation, and fast construction. It is a double-wall I-shaped plastic pipe that is extruded from the second extruder and wound by a thermoforming machine. It can be widely used in municipal drainage systems, sewage treatment systems and special requirements. Common double-walled hollow winding pipes are made of polyethylene, polypropylene, and polyvinyl chloride, each of which has its own disadvantages. Among them, PE material has limited ring rigidity, PP material has poor weather resistance, and PVC material has poor chemical corrosion resistance. With the increasing diameter of pipes, the req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/128C08L23/12C08L23/14C08L23/06C08K3/22C08K3/04C08K3/26B29D23/00B29B7/00B29C48/09B29C53/56
CPCB29B7/002B29C53/56B29D23/001B29C48/0022B29C48/09C08K2003/2241C08K2003/265C08L23/06C08L23/12C08L23/14C08L2203/18C08L2205/025C08L2205/03C08L2205/035C08L2207/062F16L9/128C08K3/22C08K3/04C08K3/26
Inventor 史先锋
Owner 史先锋
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