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A kind of high wear-resistant and high-temperature resistant rubber and its preparation method

A technology of high temperature resistance and high wear resistance, applied in the field of high wear resistance and high temperature resistance rubber and its preparation, can solve the problems of short service life, high cost and poor performance of the sealing ring, and achieve low production cost, high production efficiency, tearing Excellent crack strength

Active Publication Date: 2022-06-24
河北新尔特橡塑密封有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional sealing rings mostly use a single type of rubber as the main rubber, combined with conventional additives and carbon black to make a compound rubber. While satisfying one aspect of performance, other aspects of performance are poor and the cost is high
The failure forms of ordinary sealing rings are mainly manifested as wear, aging, inelasticity, etc., so the existing sealing rings on the market have a short service life

Method used

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  • A kind of high wear-resistant and high-temperature resistant rubber and its preparation method
  • A kind of high wear-resistant and high-temperature resistant rubber and its preparation method

Examples

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preparation example Construction

[0035] The present invention also provides a method for preparing the above-mentioned high wear-resistant and high-temperature resistant rubber, comprising the following steps:

[0036] 1) placing EPDM rubber, polyisoprene rubber, and hydroxy-terminated styrene-butadiene rubber in an internal mixer, and masticating at 120° C. to 140° C. for 6 to 8 minutes to obtain masticated rubber;

[0037] 2) adding polyethylene wax, fumed silica, serpentine, microcrystalline cellulose, alcohol ether glycoside, dilauryl thiodipropionate, pitch fiber, palm wax, charcoal to the masticated rubber obtained in step 1) Black, dipentene, anti-aging agent and accelerator, banbury at 80-100°C for 4-6min to obtain mixed rubber;

[0038] 3) adding dipentene and diisopropyl xanthate disulfide to the mixed rubber obtained in step 2), after mixing evenly, putting it into a mold, and molding;

[0039] 4) Put the molded material into the vulcanizer, and the vulcanization temperature is 60~80℃, the vulcani...

Embodiment 1

[0044] The wear-resistant rubber includes the following raw materials by weight: 200 parts of EPDM rubber, 27 parts of polyisoprene rubber, 20 parts of hydroxy-terminated styrene-butadiene rubber, 10 parts of chloroether rubber, 1 part of polyethylene wax, 5 parts of Parts of fumed silica with a particle size of 500-800nm, 24 parts of serpentine with a mesh of 100-200 meshes, 3.7 parts of microcrystalline cellulose, 1.3 parts of alcohol ether glycosides, 3.5 parts of pitch fibers, 1.6 parts of diisodisulfide Propyl xanthate, 0.5 part of dilauryl thiodipropionate, 4 parts of palm wax, 20 parts of carbon black N220 with a particle size of 200-400 nm, 1 part of dipentene and 0.7 part of antioxidant NBC.

[0045] The preparation method of wear-resistant rubber includes the following steps:

[0046] 1) placing EPDM rubber, polyisoprene rubber, and hydroxy-terminated styrene-butadiene rubber in an internal mixer, and masticating at 120° C. for 8 min to obtain masticated rubber;

[...

Embodiment 2

[0051] The wear-resistant rubber includes the following raw materials in parts by weight: 100 parts of EPDM rubber, 24 parts of polyisoprene rubber, 30 parts of hydroxy-terminated styrene-butadiene rubber, 13 parts of chloroether rubber, 1.4 parts of polyethylene wax, 7 parts of Parts of fumed silica with a particle size of 500 to 800 nm, 26 parts of serpentine with a mesh of 100 to 200, 3.4 parts of microcrystalline cellulose, 2 parts of alcohol ether glycosides, 4 parts of pitch fiber, 1 part of diisodisulfide Propyl xanthate, 0.3 part of dilauryl thiodipropionate, 5 parts of palm wax, 26 parts of carbon black N550 with a particle size of 200-400 nm, 1.4 parts of dipentene and 0.8 part of antioxidant MB.

[0052] The preparation method of wear-resistant rubber includes the following steps:

[0053] 1) placing EPDM rubber, polyisoprene rubber, and hydroxy-terminated styrene-butadiene rubber in an internal mixer, and masticating at 140° C. for 8 min to obtain masticated rubber...

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Abstract

The invention provides a high wear-resistant and high-temperature-resistant rubber and a preparation method thereof. Serpentine, microcrystalline cellulose, alcohol ether glycoside, dilauryl thiodipropionate, pitch fiber, diisopropyl xanthate disulfide, dilauryl thiodipropionate, palm wax, carbon black , dipentene and anti-aging agent as raw materials, the rubber has high wear resistance, rebound rate and high temperature and aging resistance, and has excellent tensile strength, elongation at break, tear strength and high stability. wide range. The preparation method of the invention has the advantages of simple process, convenient operation and control, stable quality, high production efficiency and low production cost, can make the prepared silicone rubber have better resilience, mechanical strength and stability, and can be produced in a large scale.

Description

technical field [0001] The invention relates to the field of rubber, in particular to a high wear-resistant and high-temperature resistant rubber and a preparation method thereof. Background technique [0002] The sealing ring is a component or measure that prevents fluid or solid particles from leaking from adjacent joint surfaces and prevents external impurities such as dust and moisture from entering the interior of the machine. The sealed working medium can be gas, liquid or powdered solid. Poor sealing reduces machine efficiency, creates waste and pollutes the environment. The leakage of flammable, explosive or toxic working medium will endanger the safety of people and equipment. The intrusion of air, water or dust into the equipment will pollute the working medium, affect the product quality, increase the wear of parts, and shorten the life of the machine. Resilience and wear resistance are an important indicator of rubber products. Improving the wear resistance an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L9/00C08L15/00C08L71/03C08L23/06C08L1/04C08L95/00C08K13/02C08K5/372C08K3/04C08K3/36
CPCC08L23/16C08L2201/08C08L2205/035C08L2205/16C08L9/00C08L15/00C08L71/03C08L23/06C08L1/04C08L95/00C08K13/02C08K5/372C08K3/04C08K3/36
Inventor 宋增胜任晓龙孟令彦马丽霞张雨苏金龙宋金环侯敏苏俊英闫婷婷
Owner 河北新尔特橡塑密封有限公司
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