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Creep-resisting and aging-resisting rubber tie plate under rail and preparation method thereof

A kind of rubber pad, anti-aging technology, applied in the direction of track, fixed rail, construction, etc., can solve the problem of not meeting the technical requirements of under-rail rubber pad, low aging resistance, no special requirements for dynamic and static stiffness ratio and fatigue performance, etc. problems, to achieve the effect of saving maintenance costs, improving creep resistance, and improving aging resistance

Inactive Publication Date: 2010-03-03
QINGDAO HILYWILL ADVANCED MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only suitable for low aging resistance requirements (100℃*72h), working resistance not less than 10 6 , There is no technical index with special requirements for dynamic and static stiffness ratio and fatigue performance, which cannot meet the technical requirements of the current under-rail rubber pad

Method used

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  • Creep-resisting and aging-resisting rubber tie plate under rail and preparation method thereof
  • Creep-resisting and aging-resisting rubber tie plate under rail and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Below in conjunction with specific embodiment, the present invention is described in further detail: Embodiment 1, a kind of anti-creep and anti-aging rubber backing plate under the rail, carry out batching with the proportioning of parts by weight:

[0057] 85 parts of natural rubber

[0058] Butadiene rubber 15 parts

[0059] Carbon black 30 parts

[0060] White carbon black 40 parts

[0061] Organic modified montmorillonite 15 parts

[0062] Sulfur 1.8 parts

[0063] Accelerator M 1.0 parts

[0064] Accelerator DM 1.5 parts

[0065] Zinc oxide 8 parts

[0066] 2 parts stearic acid

[0067] Anti-aging agent RD 1.5 parts

[0068] Antiaging agent AW 1 part

[0069] Anti-aging agent 1 part

[0070] Anti-scorch agent CTP 0.5 parts

[0071] Surface modifier 4 parts.

Embodiment 2

[0072] Embodiment 2, a kind of anti-creep and anti-aging rubber backing plate under the rail, ingredients are carried out in proportion by weight:

[0073]90 parts of natural rubber

[0074] Butadiene rubber 10 parts

[0075] Carbon black 40 parts

[0076] White carbon black 35 parts

[0077] 9 parts of organically modified montmorillonite

[0078] Sulfur 1.5 parts

[0079] Accelerator M 1.0 parts

[0080] Accelerator DM 1.0 parts

[0081] Zinc oxide 6 parts

[0082] 1.5 parts of stearic acid

[0083] Anti-aging agent RD 2 parts

[0084] Antiaging agent AW 1.5 parts

[0085] Anti-aging agent D 1.5 parts

[0086] Anti-scorch agent CTP 0.8 part

[0087] Surface modifier 3 parts.

Embodiment 3

[0088] Embodiment 3, a kind of anti-creep and anti-aging rubber backing plate under the rail, ingredients are carried out in proportion by weight:

[0089] 95 parts of natural rubber

[0090] Butadiene rubber 5 parts

[0091] Carbon black 50 parts

[0092] White carbon black 25 parts

[0093] Organic modified montmorillonite 6 parts

[0094] Sulfur 2.5 parts

[0095] Accelerator M 1.0 parts

[0096] Accelerator DM 1.5 parts

[0097] Zinc oxide 5 parts

[0098] 1.5 parts of stearic acid

[0099] Anti-aging agent RD 1 part

[0100] Antiaging agent AW 2 parts

[0101] Anti-aging agent D 1.8 parts

[0102] Anti-scorch agent CTP 1 part

[0103] Surface modifier 2 parts

[0104] An embodiment of the preparation method of a creep-resistant and aging-resistant under-rail rubber backing plate of the present invention, the production method is as follows:

[0105] 1) batching: according to any kind of proportioning batching in embodiment 1-3, accurately weigh raw material; ...

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Abstract

The invention provides a creep-resisting and aging-resisting rubber tie plate under rail and a preparation method thereof. The rubber tie plate is characterized in that content proportions of rubber components by weight are as follows: 85-95 parts of natural rubber; 5-15 parts of cis-butadiene rubber; 30-50 parts of carbon black; 25-40 parts of white carbon black; 5-15 parts of organic modified montmorillonite; 1.5-2.5 parts of sulfur; 0.5-1.0 part of a promoter; 0.8-1.5 parts of promoter DM; 5-8 parts of zinc oxide; 1-2 parts of stearic acid; 1-2 parts of anti-aging agent RD; 1-2 parts of anti-aging agent AW; 1-2 parts of anti-aging agent D; 0.5-1 part of scorch retarder CTP; and 2-4 parts of a surface modifier. The rubber tie plate can resist creep and aging, prolongs service life, and has simple process and reasonable raw material proportioning.

Description

technical field [0001] The invention belongs to the technical field of rubber material production, and mainly relates to the improvement of an under-rail rubber backing plate, in particular to a creep-resistant and aging-resistant under-rail rubber backing plate and a preparation method thereof. Background technique [0002] Due to the precious elasticity of rubber materials, the application of rubber products for railway engineering can effectively increase the elasticity of the track structure, reduce the dynamic stress of the track structure and the load and stress of the ballast bed, thereby reducing the vibration and noise caused by the wheel-rail interaction, This plays an irreplaceable role in improving ride comfort, reducing noise pollution, reducing line diseases, and prolonging the life of corresponding parts of rolling stock. [0003] At present, the main problems of rubber backing plates for lines are severe creep and poor aging resistance, among which the under-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08K9/04C08K3/34B29C35/02B29B7/56E01B9/68
Inventor 胡娅婷张万明
Owner QINGDAO HILYWILL ADVANCED MATERIALS TECH
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