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A kind of rubber compound for elastic joint and preparation method thereof

A rubber compound and elastic node technology, applied in the field of polymer materials, can solve the problem that the rubber compound fails to meet the requirements of combustion performance standards

Active Publication Date: 2021-08-03
CRRC QINGDAO SIFANG ROLLING STOCK RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a rubber compound for elastic joints and a preparation method thereof, to solve the technical problem that the rubber compound for elastic joints in the prior art fails to meet the requirements of combustion performance standards

Method used

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  • A kind of rubber compound for elastic joint and preparation method thereof
  • A kind of rubber compound for elastic joint and preparation method thereof
  • A kind of rubber compound for elastic joint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A rubber compound for elastically node, the rubber compound component comprising, in parts by mass:

[0048] 75 parts of natural rubber, 25 parts of solution SBR, 3.5 parts of zinc oxide, 1.5 parts of stearic acid, 30 parts of white carbon, 30 parts of carbon black, 3 parts antioxidant 4010NA, 2 parts of antioxidant RD, 3 parts of paraffin modifier 3.5 parts, 12 parts of naphthenic oil, a high molecular weight ammonium polyphosphate Form -Ⅱ 8 parts, 1 part of sulfur, phenylene among N, N'- bis-maleimide 0.5 parts of an accelerator of TBzTD parts of accelerator TBBS 2 parts.

[0049] The specific preparation steps are as follows:

[0050] Key process parameters and manufacturing equipment: nominal volume (90 ~ 250) L of intermeshing mixer, the temperature control unit disposed within a temperature range of 30 ~ 40 ℃, ram pressure 0.45 ~ 0.6MPa. The following steps 1 to 5 mixer rotor speed of 35 ~ 45r / min, rotor speed mixer having 6 to step 7 15 ~ 20r / min.

[0051] Step 1...

Embodiment 2

[0059] A rubber compound for elastically node, the rubber compound component comprising, in parts by mass:

[0060] 70 parts of natural rubber, 30 parts of solution SBR, 5 parts of zinc oxide, 2 parts of stearic acid, 25 parts of white carbon, 30 parts of carbon black, antioxidant 4010NA 2.5 parts of antioxidant RD 1 part, 2 parts of paraffin wax , 2.5 parts of modifying agent, 8 parts of naphthenic oil, high molecular weight Form -Ⅱ 5 parts of ammonium polyphosphate, 1.3 parts of sulfur, phenylene among N, N'- bismaleimide, 0.8 parts of accelerator TBzTD 0.6 parts of accelerator TBBS 1.6 parts.

[0061] Key process parameters and manufacturing equipment: nominal volume (90 ~ 250) L of intermeshing mixer, the temperature control unit disposed within a temperature range of 30 ~ 40 ℃, ram pressure 0.45 ~ 0.6MPa. The following steps 1 to 5 mixer rotor speed of 35 ~ 45r / min, rotor speed mixer having 6 to step 7 15 ~ 20r / min.

[0062] Step 1: natural rubber, solution styrene butadi...

Embodiment 3

[0070] A rubber compound for elastically node, the rubber compound component comprising, in parts by mass:

[0071] 60 parts of natural rubber, 40 parts of SSBR, 8 parts zinc oxide, 2 parts of stearic acid, 20 parts of white carbon, 30 parts of carbon black, 1.5 parts antioxidant 4010NA, RD 1 parts antioxidant, 1.5 parts of paraffin , 2 parts modifier, 5 parts of naphthenic oil, high molecular weight ammonium polyphosphate -Ⅱ Form 3 parts, 2 parts of sulfur, phenylene among N, N'- bismaleimide, 1 part of accelerator TBzTD 0.3 parts of accelerator TBBS 1.2 parts.

[0072] Key process parameters and manufacturing equipment: nominal volume (90 ~ 250) L of intermeshing mixer, the temperature control unit disposed within a temperature range of 30 ~ 40 ℃, ram pressure 0.45 ~ 0.6MPa. The following steps 1 to 5 mixer rotor speed of 35 ~ 45r / min, rotor speed mixer having 6 to step 7 15 ~ 20r / min.

[0073] Step 1: natural rubber, solution styrene butadiene rubber into the mixer, mixing ...

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Abstract

The invention discloses a rubber compound used for elastic joints, which comprises the following components in parts by mass: 60-75 parts of natural rubber, 25-40 parts of solution polystyrene butadiene rubber, 50-60 parts of reinforcing agent, 5-10 parts of active agent, 4-8 parts of anti-aging agent, 2-3.5 parts of modifier, 3-8 parts of flame retardant, 5-12 parts of plasticizer, 1.5-3 parts of vulcanizing agent, 1.5-3 parts of accelerator parts, wherein the sum of the natural rubber and solution polystyrene butadiene rubber mass parts is 100 parts. The technical problem that the rubber compound used for the elastic joint in the prior art fails to meet the requirements of the combustion performance standard is solved.

Description

Technical field [0001] The present invention is in the field of polymer materials, in particular, it relates to the preparation of rubber compounds and a method for elastically node. Background technique [0002] Modern rail vehicles use suspension systems, equipment installation system, connections, and other parts of the stopper rubber elastic member in a large variety to serve as shock absorption, cushioning, flexible connection, stop and so on. These elements are part of a rubber-combustible material, in case of fire, the rubber compound will burn and emit a lot of heat and smoke, and smoke often have some toxicity, and is not conducive to the evacuation evacuee vehicle fire, increased fire safety hazards in case of fire. [0003] The EU issued a fire safety standards EN45545-2 railway vehicles in 2013. Currently, many countries have adopted the standards to regulate the railway vehicle fire performance requirements of materials and components, the standard rubber elastic mem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/06C08K13/06C08K7/26C08K3/04C08K9/10C08K3/32C08K3/22C08K5/09
CPCC08K2003/2296C08K2003/323C08K2201/006C08L7/00C08L2201/02C08L2205/02C08L2205/035C08L9/06C08K13/06C08K7/26C08K3/04C08K9/10C08K3/32C08K3/22C08K5/09
Inventor 王付胜宋红光陈亮梁立鹏
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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