Nitrile rubber material with low pressure change in IRM903 oil and preparation method thereof

A rubber material and nitrile-varying technology, which is applied in the field of IRM903 oil medium and low-pressure nitrile-butadiene rubber material and its preparation, can solve problems such as insufficiency, and achieve the effects of reducing swelling, good compression resilience, and good compression set performance.

Active Publication Date: 2021-09-17
南京金三力橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is not difficult to see that the nitrile rubber material meets the SAE J200M2CH714A25EO15EO35F16 material standard, but at the same time, it needs to meet the technical index of B-type compression set≤10% after soaking in IRM903 oil at 125°C×70h, which is the difficult problem that the present invention needs to overcome. In the prior art, the general nitrile rubber material is soaked in IRM903# oil at 125°C×70h, and its compression set is ≥20% due to high swelling, which is far from meeting this requirement, and the difficulty can be imagined

Method used

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  • Nitrile rubber material with low pressure change in IRM903 oil and preparation method thereof
  • Nitrile rubber material with low pressure change in IRM903 oil and preparation method thereof
  • Nitrile rubber material with low pressure change in IRM903 oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of IRM903 oil medium and low pressure variable nitrile rubber material of the present embodiment, comprises the component of following percentage by weight:

[0027] Component and percentage content of low-pressure variable nitrile rubber material in table 1 embodiment 1 IRM903 oil

[0028]

[0029]

[0030] Specifically, in this example, the raw high-mened nitrile rubber 3370C in this implementation is produced by Arlanxeo High Performance Elastomers (Changzhou) Co., Ltd. As an implementation, the Mooney viscosity ML(1+4) of the high Mooney nitrile raw rubber 3370C in this example is 100°C: 70. Preferably, the percentage by weight of the raw high Menedene nitrile rubber 3370C in this embodiment is 49.5%. In this example, high Mooney nitrile raw rubber 3370C is used in the formula, and the Mooney viscosity ML(1+4) of the raw rubber is 100°C: 70. Compared with the conventional Mooney viscosity nitrile raw rubber, its compression set performance is better i...

Embodiment 2

[0068] A kind of IRM903 oil medium and low pressure variable nitrile rubber material of the present embodiment, comprises the component of following percentage by weight:

[0069] Component and percentage content of low-pressure variable nitrile rubber material in table 6 embodiment 2 IRM903 oil

[0070] Raw material name Percent content / % High door Nitrile Raw Rubber 3370C 47.0 Zinc oxide 3.0 stearic acid 0.7 Antiaging agent 4010NA 1.2 Antiaging agent RD 0.6 Peroxide curing agent PERKADOXA 14 2.5 Crosslinking Auxiliary ChemmixPMA-201 2.0 ST1120 carbon black 30.0 N774 semi-reinforcing carbon black 9.0 Plasticizer W260S 4.0

[0071] A kind of preparation method of IRM903 oil middle and low pressure variable nitrile rubber material of the present invention, its step is:

[0072] (1) Masterbatch mixing:

[0073] According to the above formula, add all the components in Table 6 except peroxide vulcanizing ...

Embodiment 3

[0080] A kind of IRM903 oil medium and low pressure variable nitrile rubber material of the present embodiment, comprises the component of following percentage by weight:

[0081] Components and percentage content of low-pressure variable nitrile rubber material in table 7 embodiment 3IRM903 oil

[0082] Raw material name Percent content / % High door Nitrile Raw Rubber 3370C 52.0 Zinc oxide 2.0 stearic acid 0.3 Antiaging agent 4010NA 0.8 Antiaging agent RD 0.4 Peroxide curing agent PERKADOXA 14 1.5 Crosslinking Auxiliary ChemmixPMA-201 1.5 ST1120 carbon black 27.0 N774 semi-reinforcing carbon black 12.0 Plasticizer W260S 2.5

[0083] A kind of preparation method of IRM903 oil middle and low pressure variable nitrile rubber material of the present invention, its step is:

[0084] (1) Masterbatch mixing:

[0085] According to the formula described in claim 1, all components except peroxide vulcanizing age...

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Abstract

The invention discloses a nitrile rubber material with low pressure change in IRM903 oil and a preparation method thereof, and belongs to the technical field of rubber materials. The rubber material disclosed by the invention is prepared from the following components in percentage by weight: 47.0 to 52.0 percent of high-Mooney nitrile raw rubber 3370C, 2.0 to 3.0 percent of zinc oxide, 0.3 to 0.7 percent of stearic acid, 1.5 to 2.5 percent of peroxide vulcanizing agent PERKADOXA 14, 1.5 to 2.5 percent of peroxide crosslinking aid Chemmix PMA-201, 9.0 to 12.0 percent of N774 semi-reinforcing carbon black, 26.0 to 30.0 percent of ST1120 carbon black and 2.0 to 5.0 percent of plasticizing agent W260S. The preparation method comprises the following steps: mixing master batch in an internal mixer, standing for 8 hours, and adding sulfur in the internal mixer; and carrying out first-stage vulcanization and secondary treatment on the product. After the nitrile rubber material is soaked in IRM903 oil at 125 DEG C for 70 hours, the B-type compression set is less than or equal to 10%.

Description

technical field [0001] The invention belongs to the technical field of rubber materials, and more specifically relates to an IRM903 oil-medium and low-pressure variable nitrile rubber material and a preparation method thereof. Background technique [0002] With the increasing demand in the automobile market, the amount of rubber seals used in automobiles is also increasing. It is an indispensable and important part of automobiles. In the continuous upgrading of automobiles, the requirements for rubber sealing materials are also increasing. Higher and higher, the rubber seals for engine filters that we produce for Cummins Group are one of the key components. [0003] As we all know, IRM903# oil is a high-viscosity petroleum-based standard oil product, its aniline point is the lowest among the standard test oils IRM901#, IRM902#, and IRM903#, and its swelling ability is the highest. The volume increase of nitrile rubber in IRM903# oil is very large, and higher swelling will o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08K13/02C08K3/04C08K3/22C08K5/09C08K5/14B29B7/28B29C35/02
CPCC08K13/02C08K3/04C08K3/22C08K5/09C08K5/14B29B7/28B29C35/02C08K2201/014C08L9/02Y02T10/86
Inventor 芮巧红何志刚
Owner 南京金三力橡塑有限公司
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