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Rubber material for manufacturing city railway vehicle rubber wheel

A technology of rubber materials and urban rails, applied in vehicle parts, special tires, tire parts, etc., can solve the problems of poor hydrolysis resistance, hardness and strength not meeting the requirements, and unusability, etc., to achieve strong hydrolysis resistance , high hardness and strength, good adhesion

Inactive Publication Date: 2008-01-02
姜海军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hardness and strength of the current rubber materials do not meet the requirements, the hydrolysis resistance is very poor, they cannot be used in hot and humid conditions for a long time, and the adhesion to metal is not ideal, therefore, they cannot be used as rubber materials for the safety of urban rail vehicles. Manufacture of wheels and auxiliary wheels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Prepolymer Synthetic Formula:

[0009] Add 26.6 parts by weight of TDI-100 to 100 parts by weight of PTMG with a molecular weight of 1000, so that the -NCO content in the prepolymer after synthesis is 3.5%; the amount of chain extender: add 9.5 parts by weight of MOCA to the prepolymer of 100 parts by weight share.

[0010] Color paste can be added according to color requirements:

[0011] Color paste type: R-4700, thinner dioctyl phthalate

[0012] Color paste: diluent = 1:5, add the diluted color paste liquid at 5 / 1000 of the total weight of the prepolymer and MOCA.

[0013] Embodiment 1 test result:

[0014] serial number

Embodiment 2

[0016] Prepolymer Synthetic Formula:

[0017] Add 28.0 parts by weight of TDI-100 to 100 parts by weight of PTMG with a molecular weight of 1000, so that the -NCO content in the prepolymer after synthesis is 4.0%; chain extender consumption: add 10.8 parts by weight of MOCA to the prepolymer of 100 parts by weight share.

[0018] Embodiment 2 test result:

[0019] serial number

Embodiment 3

[0021] Prepolymer Synthetic Formula:

[0022] Add 29.5 parts by weight of TDI-100 to 100 parts by weight of PTMG with a molecular weight of 1000, so that the -NCO content in the prepolymer after synthesis is 4.5%; the amount of chain extender: add MOCA12.2 to 100 parts by weight of the prepolymer parts by weight.

[0023] Embodiment 3 experimental result

[0024] serial number

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Abstract

The invention discloses a rubber material to make urban track vehicle rubber tire, which comprises the following parts: 100wt% polytetrahydropyrane glycol PTMG with molecular weight at 1000, 26.6-34wt% isocyanate TDI-100, 3.5-6.0% -NCO in the prepolymer and 9.5-18.1wt% MOCA of chain-expanding agent of prepolymer. The invention has higher strength and hardness and strong hydrolytic resistance, which can be applied under damp-heat condition for a long time to bond metal.

Description

Technical field: [0001] The invention relates to a rubber material, in particular to a rubber material specially used for safety wheels and auxiliary wheels of urban rail vehicles. Background technique: [0002] In recent years, urban rail transit has been promoted and applied in more and more cities in my country, and the proportion of rail transit in my country is quite high, and the construction speed is also very fast. Since the safety wheels and auxiliary wheels for monorail vehicles are the key components of the car body, the safety wheels are installed on both sides of the pneumatic tires on both sides of the monorail vehicle. The pneumatic tires clamp the rails tightly to ensure that the car body does not tilt, and the vehicle is safely transported to the next stop for maintenance. Load conditions (the running surface is a good cement surface): load 11200kg, speed 50km / h, run for 30 seconds; load 4660kg, run speed 20km / h, run for 20 minutes. The auxiliary wheels ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/10B60C1/00
Inventor 姜海军
Owner 姜海军
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