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A composite pipe and its manufacturing method

A technology for composite pipes and base pipes, applied in the field of rubber and plastic manufacturing and processing, can solve the problems of large bending radius, medium penetration, high cost, etc., and achieve the effects of simple manufacturing method, alleviating environmental pressure, and solving environmental pollution.

Active Publication Date: 2017-03-15
洛阳森蓝化工材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the conventional pipe lines currently on the market all have the problem of medium penetration caused by the compactness of the material, or the high cost of using special barrier materials such as PTFE and EVOH to overcome the medium penetration, and at the same time PTFE and EVOH have insurmountable defects such as high hardness and large bending radius; how to solve the problems of medium penetration of composite pipes, cost reduction and barrier layer performance affecting the physical properties of the overall pipe has always been the object of research in this field

Method used

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  • A composite pipe and its manufacturing method
  • A composite pipe and its manufacturing method
  • A composite pipe and its manufacturing method

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Embodiment 1

[0028] Provide a kind of composite pipe material in this embodiment, its structure is as figure 1 shown.

[0029] In this embodiment, the composite pipe material uses TPU as the base pipe 10, the barrier layer 11 is fluorinated HDPE, and the covering layer 13 is TPU. The specific manufacturing method is as follows:

[0030] (1) A pipe with an inner diameter of 1.6mm and a thickness of 0.5mm is extruded through a double-die extrusion process, wherein the inner layer is made of TPU base material tube 10, the thickness of the base material tube is 0.4mm, and the outer layer is coated with 0.1 HDPE layer of mm thickness;

[0031] (2) Carry out fluorination treatment to the pipe material of step (1), the fluorine gas concentration is 5%, carry out fluorination reaction at 40 ℃, the fluorination reaction time is 1.5 hours, and the fluorination pressure is 0.05MPa, and the outer surface has A composite pipe with a barrier layer 11;

[0032] (3) Cover the outer surface of the comp...

Embodiment 2

[0042] Provide a kind of composite pipe material in this embodiment, its structure is as figure 2 shown.

[0043] In this embodiment, the composite pipe material uses PVC as the base pipe 20, and the barrier layer 21 is fluorinated HDPE. The specific manufacturing method is as follows:

[0044] (1) Extruding an inner diameter of 2.5 mm through a double-die extrusion process and a double-layer pipe with an outer diameter of 5 mm, wherein the outer layer is a PVC substrate pipe 20, and the inner surface is a HDPE layer with a thickness of 0.1 mm;

[0045] (2) Put the pipe material of step (1) into the fluorination furnace, carry out fluorination treatment, the fluorine gas concentration is 5%, carry out fluorination reaction at 30 ℃, the fluorination reaction time is 2 hours, the fluorination pressure is 0.05 MPa to obtain a composite pipe with a barrier layer 21 on the inner surface.

[0046] The composite pipe in this embodiment maintains the good tensile properties, trans...

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Abstract

The invention provides a composite tube stock. The composite tube stock comprises a base stock tube, wherein a blocked layer is coated on the inner surface and / or the outer surface of the base stock tube; the blocked layer is made from thermoplastic resin with surface fluorinated treatment. As for the composite tube stock disclosed by the invention, the thermoplastic resin layer is performed with the fluorinated treatment to obtain the blocked layer with good compactness, so as to effectively solve the medium permeation problem due to delivery loss of a porous volatile medium by the tube stock in the market at present, solve the environment contamination caused by oil impregnation of the oil tube, and slow down the environment stress. Meanwhile, the composite tube stock disclosed by the invention is simple in manufacturing method, easy to control the reaction conditions, low in manufacturing cost, capable of saving equipment investment, and easy to industrialize; the materials and the thicknesses of the base stock and the impermeable layer can be selected and adjusted according to different use requirements to obtain the product with optimal performances.

Description

technical field [0001] The invention relates to the field of rubber and plastic manufacturing and processing, in particular to a composite pipe and a manufacturing method thereof. Background technique [0002] At present, the pipes for conveying liquid media on the market include polyurethane pipes, rubber pipes, polyvinyl chloride pipes or multi-layer composite pipes containing various materials. , gas stations, chemical and pharmaceutical equipment, chemical and pharmaceutical equipment, medical consumables and many other pipeline transportation fields. These pipes are used in large quantities and in many varieties, and are widely used in various fields in daily life. [0003] In the field of medical and chemical industry, in order to improve the purity of products, the pollution and loss caused by medium penetration in the medium delivery pipeline are becoming less and less acceptable; in order to protect the living environment of human beings, with the development of so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L11/04F16L9/12C08F110/02C08F8/22
CPCC08J7/126C08J2323/06F16L9/121F16L11/04
Inventor 方科闵翔崔武孝
Owner 洛阳森蓝化工材料科技有限公司
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