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Rubber for swing arm bush and preparation method thereof

A rubber and viscose technology is applied in the field of rubber for swing arm bushings and its preparation, which can solve the problems of poor stability in use and short service life.

Active Publication Date: 2018-04-03
NINGBO YONGXIN AUTO COMPONENTS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The prior art rubber for swing arm bushing and the rubber for swing arm bushing obtained by the preparation method thereof have a dynamic durability of only 260,000 times (see figure 1 , the R angle has been broken), so there are problems of short service life and poor stability

Method used

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  • Rubber for swing arm bush and preparation method thereof
  • Rubber for swing arm bush and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of preparation method of rubber for swing arm bushing, it comprises the following steps: 1) rubber mixing: earlier each component is weighed by following mass percentage: constant viscose is 30%, butadiene rubber is 20%, filler is 40%, 2% plasticizer, 3% accelerator, 2% antioxidant 4010NA, 0.5% antioxidant MB, 2.5% antioxidant-1178; then park the raw rubber for 48 hours after mastication; then with Mix other components except the accelerator; stop for 48 hours after mixing and then add the accelerator for mixing; 2) vulcanization: the vulcanization temperature is 165°C, the vulcanization time is 9 minutes, and the clamping pressure is 15 MPa.

Embodiment 2

[0029] A kind of preparation method of rubber for swing arm bushing, it comprises the following steps: 1) rubber mixing: earlier each component is weighed by following mass percentage: constant viscose is 10%, butadiene rubber is 40%, filler is 40%, 3.5% plasticizer, 1% accelerator, 2% antioxidant 4010NA, 1.5% antioxidant MB, 2% antioxidant-1178; then park the raw rubber for 22 hours after mastication; then with Mix other components except the accelerator; stop for 23 hours after mixing and then add the accelerator for mixing; 2) vulcanization: the vulcanization temperature is 155°C, the vulcanization time is 14 minutes, and the clamping pressure is 25 MPa.

Embodiment 3

[0031] A kind of preparation method of rubber for swing arm bushing, it comprises the following steps: 1) mixing rubber: earlier each component is weighed by following mass percentage: constant viscose is 20%, butadiene rubber is 35%, filler is 35%, 3% plasticizer, 2% accelerator, 1% antioxidant 4010NA, 1% antioxidant MB, 3% antioxidant-1178; then park the raw rubber for 24 hours after mastication; then with Mix other components except the accelerator; stop for 24 hours after mixing and then add the accelerator for mixing; 2) vulcanization: the vulcanization temperature is 160°C, the vulcanization time is 12 minutes, and the clamping pressure is 20 MPa.

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PUM

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Abstract

The invention relates to rubber for swing arm liner bushings. The rubber contains the following ingredients in percentage by mass: 10% to 30% of constant-viscose glue, 20% to 40% of cis-butadiene rubber, 30% to 40% of filler, 2% to 3.5% of plasticizer, 1% to 3% of accelerant, 1% to 4% of anti-aging agent 4010NA, 0.5% to 2% of anti-aging agent MB and 1.5% to 4% of antioxidant-1178, wherein the sum of mass percent of the constant-viscose glue and mass percent of the cis-butadiene rubber is 50% to 56%. A preparation method for the rubber for the swing arm liner bushings comprises the following steps: (1) carrying out plastication: firstly, weighing all the ingredients in percentage by mass; then, carrying out plastication on the constant-viscose glue and the cis-butadiene rubber, and then, carrying out standing for 22 to 48 hours; then, carrying out milling on the mixture and the other ingredients except for the accelerant; and then, carrying out standing for 22 to 48 hours, then, adding the accelerant to the mixture, and carrying out milling; and (2) carrying out curing for 9 to 14 minutes at the curing temperature of 155 DEG C to 165 DEG C and the mold-locking pressure of 15MPa to 25MPa. Compared with the prior art, the rubber for the swing arm liner bushings and the preparation method for the rubber have the characteristics that the service life is relatively long, and the stability in use is relatively good.

Description

technical field [0001] The invention belongs to the technical field of rubber preparation, in particular to a rubber for a swing arm bush and a preparation method thereof. Background technique [0002] The prior art rubber for swing arm bushing and the rubber for swing arm bushing obtained by the preparation method thereof have a dynamic durability of only 260,000 times (see figure 1 , the R angle has been broken), so there are problems of short service life and poor stability. Contents of the invention [0003] Aiming at the above problems, the present invention provides a rubber for swing arm bushing with long service life and good stability in use. [0004] The technical solution used by the present invention to solve the above problems is to provide a rubber for transmission shaft intermediate support, which includes the following components in mass percentage: [0005] Constant viscose is 10%-30%, butadiene rubber is 20%-40%, filler is 30%-40%, plasticizer is 2%-3.5...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/00C08K13/02C08K3/04C08K5/18C08K5/37C08K5/526
CPCC08L7/00C08L9/00C08L2201/08C08K13/02C08K3/04C08K5/18C08K5/37C08K5/526
Inventor 刘守宇
Owner NINGBO YONGXIN AUTO COMPONENTS MFG
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