Rubber hose and preparation method thereof

A rubber hose, nitrile rubber technology, applied in the direction of hoses, pipes, adhesives, etc., can solve the problems of high-pressure hose fire resistance that cannot be mixed, the reaction of compound flame retardants cannot be controlled, and applications, etc.
CN113513640APending Publication Date: 2021-10-19LUOHE LETONE RUBBER
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
LUOHE LETONE RUBBER
Publication Date
2021-10-19

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Abstract

The invention relates to the technical field of fireproof materials, in particular to a rubber hose and a preparation method thereof. The rubber hose sequentially comprises a lining layer, a first steel wire framework layer, a middle rubber bonding layer, a second steel wire framework layer and an outer rubber layer in the pipe diameter direction; the lining layer is prepared from nitrile rubber and NBR / PVC rubber and plastic alloy; the first steel wire framework layer is compounded on the lining layer; the middle rubber bonding layer is compounded on the steel wire framework layer; the middle rubber bonding layer is prepared from nitrile rubber and chloroprene rubber; the second steel wire framework layer is compounded on the middle rubber bonding layer; the outer rubber layer is compounded on the second steel wire framework layer; the outer rubber layer is prepared from nitrile rubber, rubber and plastic alloy and a compound flame retardant; the compound flame retardant is prepared from the following components in parts by weight: 12 to 20 parts of polyphosphamide, 10 to 17 parts of pentaerythritol, 7 to 9 parts of melamine, 20 to 30 parts of antimony trioxide, 24 to 30 parts of white carbon black, 1-5 parts of a silane coupling agent, and 2 to 4 parts of tricresyl phosphate. The rubber hose has excellent fire resistance and ultrahigh pressure performance.
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Description

technical field

[0001] The invention relates to the technical field of fireproof materials, in particular to a rubber hose and a preparation method thereof. Background technique

[0002] Steel wire braided rubber hose is mainly used in aircraft fuel, mine hydraulic pressure, oil field, construction machinery and other equipment to transport high temperature and high pressure kerosene, engine oil and other flammable and explosive media. Ordinary hoses are difficult to withstand flames, and once they break, the liquid conveyed inside will leak, adding fuel to the fire and increasing the fire, causing the accident to further expand. In order to ensure safety, a high-pressure multifunctional composite hose with fire resistance is designed.

[0003] The existing fire-resistant hose generally adopts a multi-layer structure design, and the fire-resistant performance of the hose is realized through additional layers such as fire-resistant and flame-retardant layers, armored protect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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