Wear-resistant rubber material and preparation method thereof

A technology of wear-resistant rubber and wear-resistant carbon black, which is applied in the field of low-friction rubber materials in a wide temperature range and its preparation, and can solve problems such as increased free travel of the steering wheel, wear of the ball bowl, and abnormal noise.

Active Publication Date: 2022-04-26
SHANDONG NON METALLIC MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The friction between the ball head and the ball bowl will cause the ball bowl to wear out. After long-term use, the fatigue and permanent deformation of the ball bowl material will also cause a gap between the two, which will increase the free travel of the steering wheel, produce abnormal noise, and cause the car to be unstable.

Method used

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  • Wear-resistant rubber material and preparation method thereof
  • Wear-resistant rubber material and preparation method thereof
  • Wear-resistant rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A wear-resistant rubber material, the rubber matrix is ​​nitrile rubber with an acrylonitrile content of 25%, the reinforcement system is a mixture of super wear-resistant carbon black N220 and quick-press furnace black N550, the vulcanization system is vulcanizing agent BIBP, and the lubrication system is Ethylene bisoleic acid amide, the hardening system is zinc methacrylate, the processing aid is alkylphenol formaldehyde resin and fluidity dispersant RL-22, the anti-aging system is anti-aging agent NAPM, in parts by mass, the content of each component for:

[0034]

[0035]

[0036] A preparation method of a wear-resistant rubber material, the specific steps are as follows:

[0037] Plasticize the raw rubber on the open mill, then heat the glue in the internal mixer to a temperature of 70 ° C ~ 90 ° C (without cooling water), add the mixture of super wear-resistant carbon black N220 and fast extrusion furnace black N550 in 4 times , until the mixing is uniform...

Embodiment 2

[0039] A wear-resistant rubber material, the rubber matrix is ​​nitrile rubber with an acrylonitrile content of 35%, the reinforcing system is super wear-resistant carbon black N220, the vulcanizing system is vulcanizing agent DCP, the lubricating system is oleic acid amide, and the hardening system is Zinc dimethacrylate, the processing aid is alkylphenol formaldehyde resin and fluid dispersant RL-22, the anti-aging system is a mixed system of anti-aging agent NAPM and anti-aging agent RD, in parts by mass, the content of each component is:

[0040]

[0041] A preparation method of a wear-resistant rubber material, the specific steps are as follows:

[0042]Plasticize the raw rubber on the open mill, then heat the glue in the internal mixer to a temperature of 70°C to 90°C (without turning on the cooling water), add super wear-resistant carbon black N220 in 4 times until the mixing is uniform, and the mixing time About 20 minutes; then add alkylphenol formaldehyde resin, m...

Embodiment 3

[0044] A wear-resistant rubber material, the rubber matrix is ​​hydrogenated nitrile rubber with an acrylonitrile content of 25%, the reinforcement system is super wear-resistant carbon black N220, the vulcanization system is vulcanizing agent BIBP, and the lubrication system is ethylene bisoleic acid amide. The hardening system is zinc dimethacrylate, the processing aid is alkylphenol formaldehyde resin and fluidity dispersant RL-22, and the anti-aging system is anti-aging agent NAPM. The contents of each component are as follows in parts by mass:

[0045]

[0046] The specific steps of the preparation method are as follows:

[0047] Plasticize the raw rubber on the open mill, then heat the glue in the internal mixer to a temperature of 70°C to 90°C (without turning on the cooling water), add super wear-resistant carbon black N220 in 4 times until the mixing is uniform, and the mixing time About 20 minutes; then add alkylphenol formaldehyde resin, mix for about 2 minutes, ...

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Abstract

The invention belongs to the technical field of high polymer materials, and particularly relates to a wear-resistant rubber material and a preparation method thereof. The tensile strength of the rubber material is larger than or equal to 28 Mpa, the shore A hardness is 80 +/-5, hot air is 100 DEG C for 72 h, 25% compression set is smaller than or equal to 25%, DIN abrasion is smaller than or equal to 120, and the rubber material has the advantages of being high in strength, hardness and abrasion resistance, constant in modulus within the using temperature range, good in torsional fatigue performance and suitable for the field of friction dynamic sealing under large loads. The sealing device is particularly suitable for sealing a steering tie rod ball head and a ball seat, and can also be popularized and applied to other sealing fields with super-wear-resistant dynamic fatigue requirements.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a wide temperature range low-friction rubber material and a preparation method thereof. Background technique [0002] Automobile steering tie rods and ball studs are important parts of automobiles, which play the role of connecting steering mechanisms and transmitting torque and motion. Their strength and reliability are directly related to the driving safety of automobiles. The ball joints used in domestic and foreign automobiles generally have the disadvantages of easy wear, looseness, aging and deformation of materials, excessive friction torque and instability. The tie rod head consists of a ball stud (club), a non-metallic bowl and a ball seat. The contact pressure between the ball head of the ball stud pin and the ball bowl / seat is very high, and the movement form includes up and down movement, as well as rotation; during the process, there are both t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L15/00C08L61/08C08K3/04C08K5/14C08K5/098
CPCC08L9/02C08L15/005C08L61/06C08K3/04C08K5/14C08K5/098
Inventor 张春梅杜明欣杜华太景玉龙陈青香杨敬亭刘坤刘学通崔俞宫志欣张斌张志刚
Owner SHANDONG NON METALLIC MATERIAL RES INST
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