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Formula of inner ply compound of microwave-vulcanized double-compound rubber tube

A technology of microwave vulcanization and inner layer glue, which is applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of easy occurrence of micropores, affecting product performance and appearance, etc., to improve production efficiency, save manpower, The effect of simple process

Inactive Publication Date: 2011-11-16
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vulcanized rubber hose of the steam vulcanization tank is vulcanized under high temperature and high pressure conditions, and there will be no micropores in the inner rubber of the rubber hose, but microwave vulcanized products are vulcanized under high temperature and normal pressure conditions, and micropores are prone to appear in the inner rubber of the hose, which affects the performance of the product and appearance
The formula of the original steam vulcanization tank vulcanization process using the microwave vulcanization process cannot meet the requirements, and a new formula needs to be designed to solve the microporous problem of the inner layer glue, and to simplify the process while maintaining the same material properties and appearance as the original process , save manpower, improve production efficiency, and reduce costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Nitrile rubber (NBR) 100 parts,

[0027] Extrude 80 parts of carbon black (N550) quickly,

[0028] Dioctyl phthalate (DOP) 20 parts,

[0029] 20 parts of dehumidifying and defoaming agent,

[0030] Zinc oxide 4 parts

[0031] 1 part stearic acid,

[0032] 1 part of N-phenyl-α-naphthalene (antiaging agent A),

[0033] 2 parts of N-isopropyl-N'-p-tolyl-p-phenylenediamine (antiaging agent 4010NA),

[0034] coumarone resin 5 parts,

[0035] 0.6 parts of 2-mercaptobenzothiazole (M),

[0036] 1.4 parts of dibenzothiazole disulfide (DM),

[0037] Dialkyl disulfide zinc phosphate (TP / S) 0.8 parts

[0038] Sulfur 1.6 parts.

Embodiment 2

[0040] Nitrile rubber (NBR) 100 parts,

[0041] Extrude 90 parts of carbon black (N550) quickly,

[0042] Dioctyl phthalate (DOP) 25 parts,

[0043] 25 parts of dehumidifying and defoaming agent,

[0044] Zinc oxide 5 parts

[0045] 1.5 parts of stearic acid,

[0046] 1.5 parts of N-phenyl-α-naphthalene (antiaging agent A),

[0047] 2.5 parts of N-isopropyl-N'-p-tolyl-p-phenylenediamine (antiaging agent 4010NA),

[0048] Coumarone resin 10 parts,

[0049] 0.8 parts of 2-mercaptobenzothiazole (M),

[0050] 1.6 parts of dibenzothiazole disulfide (DM),

[0051] Dialkyl zinc disulfide phosphate (TP / S) 1.0 parts

[0052] Sulfur 1.8 parts.

Embodiment 3

[0054] Nitrile rubber (NBR) 100 parts,

[0055]Extrude 100 parts of carbon black (N550) quickly,

[0056] Dioctyl phthalate (DOP) 30 parts,

[0057] 30 parts of dehumidifying and defoaming agent,

[0058] Zinc oxide 6 parts

[0059] 2 parts stearic acid,

[0060] 2 parts of N-phenyl-α-naphthalene (antiaging agent A),

[0061] 3 parts of N-isopropyl-N'-p-tolyl-p-phenylenediamine (antiaging agent 4010NA),

[0062] Coumarone resin 15 parts,

[0063] 1 part of 2-mercaptobenzothiazole (M),

[0064] 1.8 parts of dibenzothiazole disulfide (DM),

[0065] Dialkyl disulfide zinc phosphate (TP / S) 1.2 parts

[0066] Sulfur 2.0 parts.

[0067] Using the inner layer rubber formula of the above-mentioned embodiment, the inner layer rubber is cut horizontally and vertically after microwave vulcanization, and then visually observed that there is no micropore inside, which is the same as that of traditional steam autoclave vulcanization, and the material properties are also the same. ...

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Abstract

The invention relates to a formula of an inner play compound of a microwave-vulcanized double-compound rubber tube, which comprises the following components in part by mass: 100 parts of nitrile rubber, 80 to 100 parts of fast extruding furnace black, 20 to 30 parts of dioctyl phthalate, 20 to 30 parts of dehumidification antifoaming agent, 4 to 6 parts of zinc oxide, 1 to 2 parts of stearic acid, 1 to 2 parts of N-phenyl-alpha-naphthylamine, 2 to 3 parts of N-isopropyl-N-ditolyl p-phenylene diamine, 5 to 15 parts of coumarone indene resin, 0.6 to 1 part of 2-mercaptobenzothiazole, 1.4 to 1.8parts of dibenzothiazyl disulfide, 0.8 to 1.2 parts of dialkyl zinc phosphate disulfide, and 1.6 to 2.0 parts of sulfur. Due to the addition of TP / S and the dehumidification antifoaming agent, the problem of micropores after microwave vulcanization of the inner ply compound is solved. Compared with the traditional rubber tube vulcanized by the vulcanizing tanks, the rubber tube of the invention has the advantages of simple process, manual labor conservation, improvement of production efficiency by one time, reduction of production cost by 50 percent, and same material performance as the traditional rubber tube vulcanized by the vulcanizing tanks.

Description

technical field [0001] The invention relates to the technical field of rubber hoses, in particular to the inner layer rubber formula of microwave vulcanized double-composite rubber hoses. Background technique [0002] At present, the NBR / CSM double compound rubber hose commonly used in the world and domestically, the inner rubber is made of nitrile rubber (referred to as NBR), and the color design is black, and the outer layer is made of chlorosulfonated polyethylene rubber (referred to as CSM), and the color design is gray . The hose is referred to as NBR / CSM double composite hose. The hoses are prepared by vulcanization molding under high temperature and high pressure conditions in steam vulcanization tanks. In this method, a semi-finished rubber hose is prepared by co-extruding with a double compound extruder, and the release agent is sprayed on the surface, and then cut according to the specified length. The cut semi-finished rubber hose is stacked together and parked ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L45/02C08K13/02C08K3/04C08K5/12C08K3/22C08K5/09C08K5/18C08K5/47C08K5/52C08K3/06F16L11/04
Inventor 张洪起王学荣
Owner TIANJIN PENGYI GRP CO LTD
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