Steel wire mesh framework reinforced polypropylene composite pipe and preparation method and application of steel wire mesh framework reinforced polypropylene composite pipe

A technology of polypropylene and steel wire mesh, applied in the direction of pipe, rigid pipe, pipeline protection, etc., can solve the problems of poor heat resistance, high brittleness of polypropylene matrix, etc., to solve low-temperature brittleness, improve low-temperature impact resistance, and low-temperature resistance sexually effective effect

Active Publication Date: 2020-12-18
SHANDONG DONGHONG PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the two problems of steel wire pipes in the prior art due to the poor heat resistance of the polyethylene matrix and the high brittleness of the polypropylene matrix at low temperatures

Method used

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  • Steel wire mesh framework reinforced polypropylene composite pipe and preparation method and application of steel wire mesh framework reinforced polypropylene composite pipe
  • Steel wire mesh framework reinforced polypropylene composite pipe and preparation method and application of steel wire mesh framework reinforced polypropylene composite pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The first bonding resin formula: 25 parts of maleic anhydride grafted polypropylene;

[0053] Polypropylene: 59.7 parts;

[0054] Toughening agent: 10 parts;

[0055] Adhesion regulator: 5 parts;

[0056] Anti-aging additives: 0.3 parts;

[0057] The second bonding resin formula: ethylene octene copolymer: 59.5 parts;

[0058] Polypropylene: 20 parts;

[0059] Polyethylene: 20 parts;

[0060] Anti-aging additives: 0.5 parts;

[0061] S1 Polypropylene core pipe extrusion: Extrude polypropylene core pipe through pipe processing equipment, and the extrusion temperature of the pipe is 180°C;

[0062] S2 steel wire winding: on the core tube, a layer of steel wire is wound left-handed, and then a layer of steel wire is wound right-handed. The winding angle of the steel wire is 54.5°;

[0063] S3 Extrusion of the first adhesive resin layer: extrude the first adhesive resin on the winding steel wire layer, the thickness of the first adhesive resin layer is preferably to ...

Embodiment 2

[0085] First bonding resin formulation:

[0086] Maleic anhydride grafted polypropylene: 40 parts;

[0087] Polypropylene: 44.5 parts;

[0088] Toughening agent: 5 parts;

[0089] Adhesion regulator: 10 parts;

[0090] Anti-aging additives: 0.5 parts;

[0091] Second bonding resin formulation:

[0092] Ethylene octene copolymer: 69.5 parts;

[0093] Polypropylene: 10 parts;

[0094] Polyethylene: 20 parts;

[0095] Anti-aging additives: 0.5 parts;

[0096] S1 Polypropylene core pipe extrusion: Extrude polypropylene core pipe through pipe processing equipment, and the extrusion temperature of the pipe is 195°C;

[0097] S2 Winding of the first two layers of steel wire and extrusion of the first adhesive resin layer: First, a layer of steel wire is wound left-handed on the core tube, and then a layer of steel wire is wound right-handed. The winding angle of the steel wire is 54.5°; extrude on the wound steel wire layer The first adhesive resin is produced, the thickness...

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Abstract

The invention relates to a steel wire mesh framework reinforced polypropylene composite pipe and a preparation method and application of the steel wire mesh framework reinforced polypropylene composite pipe. A polypropylene core pipe, a steel wire reinforced layer, a first adhesive resin layer, a second adhesive resin layer and a polyethylene outer layer are sequentially arranged from inside to outside. The first adhesive resin layer is composed of maleic anhydride grafted polypropylene, polypropylene, a flexibilizer, an adhesive force regulator and an anti-aging auxiliary agent. The second adhesive resin is composed of an elastomer, polypropylene, polyethylene and an anti-aging auxiliary agent. The problems that the low-temperature brittleness is large when polypropylene is independentlyused as a base body pipe and the heat resistance is poor when polyethylene is independently used as a base body are solved, the using temperature of a conveying medium is increased, and the technicalrisk that lantern damage is caused by bulging and wire drawing when an existing polypropylene steel wire mesh framework composite pipe conveys a medium at the temperature of 40 DEG C or above is reduced.

Description

technical field [0001] The invention belongs to the technical field of steel wire frame reinforced composite pipes, and in particular relates to a steel wire frame reinforced polypropylene composite pipe and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Steel wire wound reinforced plastic composite pipe is a high-tech product with independent intellectual property rights in my country. This new type of pipe is made of high-strength plastic steel wire mesh skeleton and thermoplastic polyethylene or polypropylene as raw materials, through the steel wire in the plastic core tube after left-handed winding and right-handed winding, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/14F16L57/02F16L57/04F16L58/10B29C48/09B29C48/151B29C48/21
CPCF16L9/14F16L57/02F16L57/04F16L58/109B29C48/09B29C48/151B29C48/21
Inventor 倪奉尧伍金奎孔智勇孔涛曹敬凯魏鹏孙之状孔伟川孔德彬汤毅
Owner SHANDONG DONGHONG PIPE IND
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