Rubber for swing arm liner bushings and preparation method for rubber

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

Active Publication Date: 2017-02-15
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 liner bushings and preparation method for rubber
  • Rubber for swing arm liner bushings and preparation method for rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing rubber for a swing arm bushing, which includes the following steps: 1) Rubber mixing: First, each component is weighed according to the following mass percentages: constant viscose 30%, butadiene rubber 20%, and filler: 40%, plasticizer 2%, accelerator 3%, antioxidant 4010NA 2%, antioxidant MB 0.5%, antioxidant-1178 2.5%; then leave it for 48 hours after plasticizing the raw rubber; Mix the other components except the accelerator; leave 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 method for preparing rubber for a swing arm bushing, which includes the following steps: 1) Rubber mixing: First, each component is weighed according to the following mass percentages: 10% for constant viscose, 40% for butadiene rubber, and filler: 40%, plasticizer is 3.5%, accelerator is 1%, antioxidant 4010NA is 2%, antioxidant MB is 1.5%, antioxidant-1178 is 2%; then the raw rubber is plasticized and left for 22 hours; then with Mixing of other components except accelerator; after mixing, stop for 23 hours and then add accelerator for mixing; 2) Vulcanization: vulcanization temperature is 155℃, vulcanization time is 14 minutes, and clamping pressure is 25 MPa.

Embodiment 3

[0031] A method for preparing rubber for swing arm bushings, which includes the following steps: 1) Rubber mixing: First, each component is weighed according to the following mass percentages: 20% for constant viscose, 35% for butadiene rubber, and filler: 35%, plasticizer 3%, accelerator 2%, antioxidant 4010NA 1%, antioxidant MB 1%, antioxidant-1178 3%; then leave it for 24 hours after the raw rubber is plasticized; Mix the other components except the accelerator; leave 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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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, and particularly relates to a rubber for a swing arm bushing and a preparation method thereof. Background technique [0002] The rubber for swing arm bushings in the prior art and the preparation method thereof can only achieve dynamic durability of 260,000 times (see figure 1 , R angle has been broken), so there are problems of short service life and poor stability in use. Summary of the invention [0003] In view of the above problems, the present invention provides a rubber for swing arm bushings with longer service life and better stability in use. [0004] The technical solution used by the present invention to solve the above problems is to provide a rubber for intermediate support of a transmission shaft, which includes the following components by mass percentage: [0005] Constant viscose is 10%-30%, butadiene is 20%-40%, filler is 30%-40%, plasticizer is 2%-3.5%, accelerator is 1%-3%, ...

Claims

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Application Information

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Patent Type & Authority Applications(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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