Hose and preparation method of hose

A hose and rubber tube technology, applied in the field of rubber tubes, can solve problems such as hidden dangers of pipeline safety, and achieve the effects of firm bonding, good wear resistance and strong radiation resistance

Active Publication Date: 2015-11-18
山东德嘉液压制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem solved by the present invention is to overcome the defects of the existing corrosion-resistant rubber tubes, using low-density polyethylene (LLDPE), ultra-high molecular weight polyethylene (UHMWPE) and polymer cross-linked polyethylene as the main raw materials, scientifically compounding and After vulcanization of the rubber tube, the lining film is prepared from chemical substances such as polyimide, tetraethylpentamine, α-sulfo fatty acid alkyl ester salt, epoxy resin, SBR latex, rosin, etc., which have excellent bonding properties. Corona treatment is carried out on the bonding surface of the inner lining film and the bonding surface of the rubber tube to enhance its cohesiveness, and the surface layer is compounded with fiberglass reinforced fiber with radiation-proof performance, so that the surface layer of the rubber tube has excellent anti-corrosion properties. radiation, especially to solve the potential safety hazards caused by ionizing radiation for pipelines transporting oil and natural gas, and finally prepare a soft lining film with firm bonding, strong radiation resistance, and the ability to transport LPG, LNG and strong corrosive chemical solvents. Tube

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A hose, comprising a rubber tube body, the rubber tube body sequentially includes an inner layer, an intermediate layer and a surface layer from the inside to the outside;

[0062] The inner layer is formed by vulcanizing and bonding the EPDM layer and the inner lining film;

[0063] The color of the EPDM rubber is milky white;

[0064] The inner lining film is mainly prepared from the following raw materials in parts by weight: 30 parts of LLDPE, 25 parts of polyvinyl alcohol, 20 parts of UHMWPE, 15 parts of polymer cross-linked polyethylene, 9 parts of polyimide, and 7 parts of tetraethylpentamine , 6 parts of α-sulfo fatty acid alkyl ester salt, 6 parts of epoxy resin, 8 parts of SBR latex, 7 parts of rosin;

[0065] The lining film is blown and stretched to form a film after extruding raw materials by a conventional method, and the thickness of the lining film is 0.42mm.

[0066] The middle layer is made of EPDM rubber, EPDM cord, polypropylene reinforced composit...

Embodiment 2

[0087] A hose, comprising a rubber tube body, the rubber tube body sequentially includes an inner layer, an intermediate layer and a surface layer from the inside to the outside;

[0088] The inner layer is formed by vulcanizing and bonding the EPDM layer and the inner lining film;

[0089] The color of the EPDM rubber is milky white;

[0090] The inner lining film is mainly prepared from the following raw materials in parts by weight: 20 parts of LLDPE, 20 parts of polyvinyl alcohol, 15 parts of UHMWPE, 10 parts of polymer cross-linked polyethylene, 8 parts of polyimide, and 5 parts of tetraethylpentamine , 5 parts of α-sulfo fatty acid alkyl ester salt, 5 parts of epoxy resin, 7 parts of SBR latex, 6 parts of rosin;

[0091] The lining film is blown and stretched to form a film after extruding raw materials by a conventional method, and the thickness of the lining film is 0.35 mm.

[0092] The middle layer is made of EPDM rubber, EPDM cord, polypropylene reinforced composi...

Embodiment 3

[0113] A hose, comprising a rubber tube body, the rubber tube body sequentially includes an inner layer, an intermediate layer and a surface layer from the inside to the outside;

[0114] The inner layer is formed by vulcanizing and bonding the EPDM layer and the inner lining film;

[0115] The color of the EPDM rubber is milky white;

[0116] The inner lining film is mainly prepared from the following raw materials in parts by weight: 40 parts of LLDPE, 30 parts of polyvinyl alcohol, 25 parts of UHMWPE, 20 parts of polymer cross-linked polyethylene, 10 parts of polyimide, and 8 parts of tetraethylpentamine , 7 parts of α-sulfo fatty acid alkyl ester salt, 7 parts of epoxy resin, 9 parts of SBR latex, 8 parts of rosin;

[0117] The lining film is blown and stretched to form a film after extruding raw materials by a conventional method, and the thickness of the lining film is 0.5mm.

[0118] The middle layer is made of EPDM rubber, EPDM cord, polypropylene reinforced composit...

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Abstract

The invention discloses a hose and a preparation method of the hose, wherein the hose adopts low density polyethylene, ultra-high molecular weight polyethylene and macromolecule crosslinked polyethylene as raw materials, which are scientifically compounded and are vulcanized with a rubber tube to obtain a chemical substance with an excellent adhesive property for preparing a lining film, meanwhile, corona treatment is carried out on a bonding surface of the lining film and on a bonding surface of the rubber tube, moreover, a surface layer is composited with glass fiber reinforced plastics with a radiation-proof property, so that the surface layer of the rubber tube is excellent in radiation-proof property, and the safety hazards, brought about by ionization radiation, of a delivery pipeline are solved, thus the hose is prepared, the lining film of which is firm in bonding and the radiation-proof property is good; the hose is capable of delivering LPG (Liquefied Petroleum Gas) and LNG (Liquefied Natural Gas) as well as strong corrosive chemical solvents; the absorption rate, of X and gamma rays and all kinds of neutrons in nuclear radiation, of the hose, can reach 97.5 to 99.5 percent; and the adhesive property (N / 25mm) between the lining film and a rubber layer can reach 160 to 180.

Description

technical field [0001] The invention relates to a rubber hose, in particular to a hose and a preparation method thereof. Background technique [0002] After more than 50 years of development, my country's rubber hose belt industry has played an indispensable supporting role in the national economy. Especially with the improvement of my country's mechanization level and the application of new materials, the rubber hose belt industry has continuously penetrated into related fields. The application range and fields of rubber hose belts have been opened up, and the products are widely used in coal, metallurgy, cement, ports, mines, petroleum, automobiles, textiles, light industry, engineering machinery, construction, marine, agriculture, aviation, aerospace and other fields. In recent years, the rubber hose and belt industry has adhered to the scientific development concept, and the product varieties, specifications, and quality have achieved sustained, rapid, coordinated, and he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/08C08L23/08C08L29/04C08L23/06C08L79/08C08L63/00C08L9/08C08L93/04C08L67/06C08L23/16C08L23/12C08K5/17C08K5/42C08K3/08C08K3/38
CPCC08L23/0815C08L67/06C08L2203/16C08L2203/18C08L2205/035C08L2207/068F16L11/08C08L29/04C08L23/06C08L2023/44C08L79/08C08L63/00C08L9/08C08L93/04C08K5/42C08L71/02C08K7/04C08K3/08C08K3/38
Inventor 李绩
Owner 山东德嘉液压制品有限公司
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