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High-performance core rubber of steel cord conveyor belt and preparation method of core rubber

A steel cord core and conveyor belt technology, which is applied in the direction of adhesives, natural rubber adhesives, polymer adhesive additives, etc., can solve the problems of affecting the service life of the conveyor belt, poor dynamic fatigue resistance, easy aging and reduction, etc., and achieve improvement Adhesive strength and dynamic fatigue resistance, good dynamic fatigue resistance, not easy to aging and reduction effect

Inactive Publication Date: 2015-09-23
江苏凯嘉橡胶科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The steel cord conveyor belt of the prior art has poor dynamic fatigue resistance between the core rubber and the steel cord during use, and is easy to age and restore
With the prolongation of conveying time, the core rubber and steel wire rope should be fatigued and aged, resulting in the decrease of bonding strength, and the core rubber and steel wire rope will be peeled off, resulting in partial damage of the conveyor belt and affecting the service life of the conveyor belt.

Method used

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  • High-performance core rubber of steel cord conveyor belt and preparation method of core rubber

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preparation example Construction

[0023] The preparation method of the above-mentioned high-performance steel cord conveyor belt core rubber includes the following steps:

[0024] (1) Add natural rubber, styrene-butadiene 1500 rubber, and butadiene BR9000 rubber to the internal mixer for pre-compression and mixing for 30-60 seconds;

[0025] (2) Continue to add anti-aging agent BLE, anti-aging agent 4010NA, zinc oxide, magnesium oxide, stearic acid, adhesion promoter, anti-fatigue agent PL600, and tackifying resin for mixing for 30-70 seconds;

[0026] (3) Add white carbon black, N220 carbon black, N330 carbon black, and softened heavy oil for mixing for 30-70 seconds;

[0027] (4) When the temperature of the mixture reaches 120-130℃, the rubber will be discharged to obtain a mixed rubber;

[0028] (5) After cooling the rubber compound in step (4) and stopping for 5-16 hours, add it to the internal mixer to continue mixing for 30-50 seconds;

[0029] (6) Then add binder, vulcanization accelerator, sulfur, and mix for 30-...

Embodiment 1

[0032] The formula ratio is based on parts by weight, and the ratio of materials used is:

[0033] Natural rubber is 30 parts, styrene-butadiene 1500 rubber is 60 parts, butadiene BR9000 rubber is 10 parts, antioxidant BLE is 2 parts, antioxidant 4010NA is 1.5 parts, zinc oxide is 6 parts, magnesium oxide is 1 part, stearic acid 1.5 parts, adhesion promoter 2 parts, anti-fatigue agent PL600 4 parts, white carbon black 12 parts, tackifying resin 4 parts, adhesives 5 parts, softened heavy oil 8 parts, N330 carbon black 40 parts, 1 part vulcanization accelerator, 2.5 parts sulfur.

[0034] The specific steps of the preparation method of the high-performance steel cord conveyor belt core rubber are as follows:

[0035] (1) After adding natural rubber, styrene-butadiene 1500 rubber and butadiene BR9000 rubber to the internal mixer for pre-compression and mixing for 45 seconds,

[0036] (2) Then add anti-aging agent BLE, anti-aging agent 4010NA, zinc oxide, magnesium oxide, stearic acid, a...

Embodiment 2

[0043] The formula ratio is based on parts by weight. The ratio of the materials used is:

[0044] Natural rubber is 10 parts, styrene-butadiene 1500 rubber is 70 parts, butadiene BR9000 rubber is 20 parts, antioxidant BLE is 2 parts, antioxidant 4010NA is 1.5 parts, zinc oxide is 6 parts, magnesium oxide is 1 part, stearic acid 1.5 parts, 8 parts of adhesion promoter, 4 parts of anti-fatigue agent PL600, 12 parts of white carbon black, 6 parts of tackifying resin, 6 parts of adhesive, 6 parts of softened heavy oil, N330 carbon black It is 40 parts, vulcanization accelerator is 1.5 parts, and sulfur is 2.5 parts.

[0045] The specific steps of the preparation method of the high-performance steel cord conveyor belt core rubber are as follows:

[0046] (1) After adding natural rubber, styrene-butadiene 1500 rubber, and butadiene BR9000 rubber to the internal mixer for pre-compression and mixing for 40 seconds,

[0047] (2) Then add anti-aging agent BLE, anti-aging agent 4010NA, zinc ox...

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Abstract

The invention provides high-performance core rubber of a steel cord conveyor belt. The core rubber comprises components in parts by weight as follows: 20-80 parts of natural rubber, 0-80 parts of butylbenzene rubber 1500, 0-30 parts of butadiene rubber 9000, 1-3 parts of an anti-aging agent BLE, 1-3 parts of an anti-aging agent 4010NA, 4-8 parts of zinc oxide, 1-3 parts of magnesium oxide, 1-3 parts of stearic acid, 1.5-8 parts of an adhesion promoter, 3-5 parts of an anti-fatigue agent PL600, 5-15 parts of white carbon black, 3-8 parts of tackifying resin, 3-8 parts of an adhesive, 5-10 parts of softened heavy oil, 0-30 parts of N220 carbon black, 10-40 parts of N330 carbon black, 0.5-3 parts of a vulcanization accelerator and 1-4 parts of sulfur. The invention further provides a preparation method of the high-performance core rubber. The steel cord conveyor belt adopting the high-performance core rubber has the advantages of high adhesion force between the rubber material and a steel wire rope, good dynamic fatigue resistance, low probability of aging and reduction and the like.

Description

Technical field [0001] The invention relates to the field of steel cord conveyor belts, in particular to a high-performance steel cord conveyor belt core rubber and a preparation method thereof. Background technique [0002] At present, the wire rope conveyor belt has a long conveying distance, a large conveying volume, convenient and fast, and high production efficiency. It is a necessary means for the continuous conveying of modern large quantities of materials. Steel cord conveyor belts generally consist of steel cords, core rubber, and upper and lower covering rubbers. The steel cords can bear the load, and the rubber can protect the steel cords. The bonding of rubber and steel wire rope is the key to the production of conveyor belts. The core rubber and the steel wire rope are directly infiltrated and bonded, which can prevent the steel rope from being corroded. The performance of the core rubber greatly determines the service life of the steel wire rope core conveyor belt....

Claims

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Application Information

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IPC IPC(8): C09J107/00C09J109/06C09J109/00C09J161/06C09J11/04C09J11/06C09J11/08
Inventor 沈王平沈玉海何承霞顾宇飞夏茂华
Owner 江苏凯嘉橡胶科技股份有限公司