EPDM flame-retardant sponge sealing strip for high-speed rail

A technology of sealing strips and sponges, applied in the field of rubber products, can solve the problem that there are not many flame retardant sponge products, and achieve the effects of good material properties, fast vulcanization speed and high flame retardant grade.

Active Publication Date: 2015-11-11
TIANJIN XINZHONGHE RUBBER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the demand for flame-retardant products in the market is increasing, but there are not many flame-retardant sponge products, and it is also a technical problem that many people are studying but cannot effectively solve.

Method used

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  • EPDM flame-retardant sponge sealing strip for high-speed rail
  • EPDM flame-retardant sponge sealing strip for high-speed rail
  • EPDM flame-retardant sponge sealing strip for high-speed rail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] EPDM flame-retardant sponge sealing strip for high-speed rail, the components and parts by mass are as follows:

[0018]

[0019] After testing, the density and flame retardancy of the EPDM flame retardant sponge sealing strip for high-speed rail prepared in Example 1: the density is 0.65g / cm 3 , 6 seconds away from the fire, it self-extinguished, and a lot of smoke came out.

Embodiment 2

[0021] EPDM flame-retardant sponge sealing strip for high-speed rail, the components and parts by mass are as follows:

[0022]

[0023] After testing, the density and flame retardancy of the EPDM fire-retardant sponge sealing strip for high-speed rail prepared in Example 2: density 0.5g / cm 3 , self-extinguishing away from the fire, with a small amount of smoke coming out.

Embodiment 3

[0025] EPDM flame-retardant sponge sealing strip for high-speed rail, the components and parts by mass are as follows:

[0026]

[0027]

[0028] After testing, the density and flame retardant properties of the EPDM flame retardant sponge sealing strip for high-speed rail prepared in Example 3: density 0.6g / cm 3 , It extinguishes itself after 3 seconds away from the fire, and a small amount of smoke comes out.

[0029] It should be noted that the components in Examples 1-3 are commercially available products, and the sources are as follows:

[0030]

[0031] Antimony trioxide, aluminum hydroxide, and chlorinated paraffin were purchased from Hunan Yiyang, Jinan Taixing, and Anming Hengxin, respectively.

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Abstract

The invention discloses an EPDM flame-retardant sponge sealing strip for a high-speed rail. The EPDM flame-retardant sponge sealing strip comprises the following components in parts by mass: 100 parts of high-ENB-content EPDM (ethylene propylene diene monomer), 50 to 70 parts of fast extruding furnace black, 30 to 50 parts of inert filler, 140 to 160 parts of flame-retardant agent, 60 to 80 parts of high-flash-point paraffin oil, 1 to 2 parts of anti-aging agent TMQ, 6 to 8 parts of activated zinc oxide, 1 to 3 parts of stearic acid, 1 to 3 parts of polyethylene glycol, 1 to 3 parts of flow additive, 1 to 2 parts of vulcanizing agent, 4 to 6 parts of accelerant and 4 to 6 parts of foaming agent. By adopting the flame-retardant sponge formula, a better material performance can be obtained, the density is 0.5 to 0.6 g/cm<3>, the flame-retardant grade reaches a burning-resisting grade, and the requirement of the high-speed rail sponge sealing strip on light weight and flame retardant property can be met.

Description

technical field [0001] The invention relates to the technical field of rubber products, in particular to an EPDM flame-retardant sponge sealing strip for high-speed rail. Background technique [0002] EPDM flame retardant sponge sealing strip for high-speed rail mainly refers to the sealing strip used in the sealing system of high-speed railway. The sealing strip is manufactured by extrusion process, and the material is ethylene-propylene-diene rubber (EPDM547) with high ENB content. The sealing strip works in high-speed trains. In addition to the conventional aging resistance and ozone performance, it also needs high flame retardancy to prevent fires when encountering open flames. At present, the demand for flame-retardant products in the market is increasing, but there are not many flame-retardant sponge products, and it is also a technical problem that many people are currently studying but cannot effectively solve. Contents of the invention [0003] The object of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L91/06C08L71/02C08K13/02C08K3/04C08K3/22C08K5/09C08K3/26C08K3/06C08J9/04
CPCC08J9/0061C08J9/04C08J2323/16C08L23/16C08L2201/02C08L2203/14C08L2205/025C08L2205/035C08L91/06C08L71/02C08K13/02C08K3/04C08K2003/2296C08K5/09C08K2003/265C08K3/2279C08K2003/2227C08K3/06
Inventor 孙贵元
Owner TIANJIN XINZHONGHE RUBBER IND
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