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High temperature resistant low voltage variable light-colored acrylonitrile-butadiene rubber formula for skeleton oil seal

A technology of nitrile rubber and skeleton oil seal, which is applied in the field of rubber technology formula, can solve the problems of being unable to be widely used, slow vulcanization speed, and vulcanization delay, etc., achieves the effects of fast vulcanization speed, improved high temperature aging resistance, and guaranteed safety

Inactive Publication Date: 2016-03-09
NANJING ORIENTLEADER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Skeleton oil seal is a molded product, which requires a fast vulcanization speed of the rubber material. If a large amount of ordinary white carbon black is added, there will be a serious delay in vulcanization, and the slow vulcanization speed will make it impossible to make it widely used in oil seals. Fast, high temperature and low pressure deformation, light-colored nitrile rubber formula with high bonding strength to metals, will surely make white carbon black widely used in oil seal products

Method used

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  • High temperature resistant low voltage variable light-colored acrylonitrile-butadiene rubber formula for skeleton oil seal
  • High temperature resistant low voltage variable light-colored acrylonitrile-butadiene rubber formula for skeleton oil seal
  • High temperature resistant low voltage variable light-colored acrylonitrile-butadiene rubber formula for skeleton oil seal

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Experimental program
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Embodiment Construction

[0010] The high-temperature-resistant and low-pressure light-colored nitrile-butadiene rubber formulation components used for skeleton oil seals of the present invention are as shown in Table 1:

[0011] Table 1. High-temperature-resistant and low-pressure light-colored nitrile-butadiene rubber formulation component list for skeleton oil seal of the present invention

[0012] serial number

components

quality score

1

Nitrile rubber

100

2

Zinc oxide

3～10

3

stearic acid

1～6

[0013] 4

sulfur

0.2～1.5

5

Accelerator TMTD

0.5～2.5

6

Accelerator CZ

1～3

7

Accelerator DTDM

0.5～2.5

8

Antiager MB

0.5～3.5

9

Antiaging agent 2246

0.5～3.5

10

Antiaging agent MMBI-70

0.5～2

11

Plasticizer TP-759

5～15

12

Basic silica

40～70

13

Silane coupling agent Si-69

1～3

[0014] Embod...

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Abstract

The present invention relates to a high temperature resistant low voltage variable light-colored acrylonitrile-butadiene rubber formula for a skeleton oil seal. The formula comprises the following compounds: acrylonitrile-butadiene rubber, zinc oxide, alkaline white carbon, a silane coupling agent Si-69, stearic acid, sulfur, a promoter TMTD, a promoter CZ, a promoter DTDM, an antioxidant 2246, an antioxidant MB, an antioxidant MMBI-70, and TP-759. According to the rubber provided by the present invention, hardness variation is 3, and a change rate of elongation is -11.6% at 125 DEG C for 72 hours in an experiment. A type voltage variation (25% compression) is 16 at 100 DEG C for 24 hours.

Description

technical field [0001] The invention relates to the technical formula field of rubber, in particular to a high-temperature-resistant and low-pressure light-colored nitrile butadiene rubber formula for skeleton oil seals. Background technique [0002] With the rapid development of the railway industry, oil seals for railway wagons, as an important safety component of trains, have attracted more and more attention from oil seal manufacturers. Compared with carbon black, white carbon black has high bonding strength with metal, good aging resistance, slow vulcanization speed, poor pressure change and poor reinforcement. With the deepening of research, the application of silica is increasing. Experiments have confirmed that the application of silica in tires can reduce the rolling resistance of tires by 20%, so silica has been widely used in the manufacture of green tires. Skeleton oil seal is a molded product, which requires a fast vulcanization speed of the rubber material. If...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08K13/02C08K3/22C08K5/09C08K3/06C08K3/36
Inventor 鞠建宏郑兆杰邹惠芳陆王兴
Owner NANJING ORIENTLEADER TECH CO LTD
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