Pipe with self-degradation outer layer

Abstract

The utility model relates to a pipe with a self-degradation outer layer, which comprises a working pipe, and a modified resin mixture self-degradation outer layer is arranged outside the working pipe. And the thickness of the modified resin mixture self-degradation outer layer is 1.0-3.0 mm. The modified resin mixture self-degradation outer layer is arranged on the periphery of the working pipe in a co-extrusion mode. The outer diameter of the working pipe ranges from 20 mm to 1600 mm. The modified resin mixture self-degradation outer layer can protect the working pipe in the installation and transportation process, the working pipe is prevented from being scratched, the modified resin mixture self-degradation outer layer can be degraded automatically, and the environment is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pipe material, especially a pipe material with a self-degradable outer layer. BACKGROUND

[0002] Plastic pipes are widely used in trenchless construction due to their flexibility, but during construction, the surface is easily scratched by stone wedges during dragging, and under the action of pressure, scratches can easily cause crack propagation and even pipe damage, affecting the service life of the pipe and causing safety hazards in the field of pressure pipes. The existing technology solves this problem by improving the impact resistance of the pipe, which can only resist some small external forces and cannot effectively protect the pipe. SUMMARY

[0003] The utility model aims at solving the insufficient prior art and provides a pipe material with a self-degradable outer layer.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A pipe material with a self-degradable outer layer, comprising a working pipe material, and a modified resin mixture self-degradable outer layer provided outside the working pipe material.

[0006] The thickness of the modified resin mixture self-degradable outer layer is 1.0-3.0mm.

[0007] The modified resin mixture self-degradable outer layer is co-extruded on the periphery of the working pipe material.

[0008] The outer diameter of the working pipe material is 20-1600mm.

[0009] The utility model has the advantages that the modified resin mixture self-degradable outer layer can form a protective layer during the installation and transportation of the working pipe material, preventing the working pipe material from being scratched, and can also self-degrade without affecting the environment. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The utility model is a structural schematic view;

[0011] In the figure: 1-modified resin mixture self-degradable outer layer; 2-working pipe material;

[0012] The utility model will be described in detail below with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0013] The principles and features of the present application are described below in conjunction with the accompanying drawings, in which the embodiments are shown for the purpose of explanation only and are not intended to limit the scope of the present application. The present application is described in more detail in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present application will become more apparent from the following description. It is noted that the drawings are in extremely simplified form and are not drawn to precise scale, and are merely used to facilitate, clarify and aid understanding of the present application.

[0014] It is noted that when a component is referred to as being "on" another component, it can be directly on the other component or intervening components can also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components can also be present. When a component is referred to as being "disposed on" another component, it can be directly disposed on the other component or intervening components can also be present. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0016] The present application is further described below in conjunction with the accompanying drawings and embodiments:

[0017] A pipe with a self-degradable outer layer, as shown, is divided into two layers, a modified resin mixture self-degradable outer layer 1 and a working pipe 2. Figure 1

[0018] The modified resin mixture self-degradable outer layer 1 is co-extruded on the periphery of the working pipe 2.

[0019] The thickness of the modified resin mixture self-degradable outer layer 1 is 1.0-3.0mm. The modified resin mixture self-degradable outer layer 1 is prepared using a modified degradable resin mixture, such as starch polylactic acid, and adding antioxidant materials to modify the degradable resin, which is more resistant to scratches and can resist scratches during the dragging process, reducing frictional resistance. The degradation period of the modified resin mixture self-degradable outer layer 1 is 24-48 months, which can be completely absorbed by the soil.

[0020] The outer diameter of the working pipe 2 is 20-1600mm.

[0021] The working pipe 2 is used for fluid transportation and mainly bears the pressure of the fluid inside and the load of the soil outside. ​

[0022] The modified resin mixture self-degradation outer layer 1 mainly plays a role of working pipe 2 working pipe, prevents the working pipe 2 from being scratched and bumped, and can effectively isolate the friction force of the whole pipeline on the working pipe 2 in the dragging construction process.

[0023] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as various improvements are made by adopting the method concept and technical scheme of the utility model, or direct application in other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A pipe with a self-degradable outer layer, characterized in that: The working pipe (2) comprises a self-degradable outer layer (1) of a modified resin mixture. The thickness of the self-degradable outer layer (1) is 1.0-3.0 mm. The self-degradable outer layer (1) is prepared from a modified degradable resin mixture.

2. The pipe with a self-degradable outer layer according to claim 1, characterized in that: The modified resin mixture self-degradable outer layer (1) is co-extruded and arranged on the periphery of the working pipe (2).

3. The pipe with a self-degradable outer layer according to claim 2, characterized in that: The outer diameter of the working pipe (2) is 20-1600 mm.

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