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Damping oil composition for damper as well as preparation method thereof

A damping oil and composition technology, applied in the field of damping oil composition and its preparation, can solve problems such as unsatisfactory buffering effect, difficulty in opening and closing, increased damping force, etc., achieve moderate speed, simple and easy preparation process, Effect of small change in viscosity

Active Publication Date: 2014-01-01
BAIC MOTOR CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dampers used in some opening and closing parts of automobiles use single silicone oil or composite polymer oil, but because the solidification point of the single oil is fixed, it is greatly affected by temperature, and the damping effect is also poor
There is a large temperature difference between the north and the south of our country. The suitable damping oil for damping devices in high temperature areas has a high freezing point and can maintain the required resistance at high temperatures. Low will increase the damping force of the oil used, so it is difficult to open and close, and the cushioning effect is not very ideal

Method used

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  • Damping oil composition for damper as well as preparation method thereof

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preparation example Construction

[0024] According to another aspect of the present invention, there is provided a method for preparing a damping oil composition for a damper, comprising: (a) heating polyisobutylene to 70-100°C, and then mixing it with silicone oil to obtain a mixed solution; (b) mixing liquid hydrocarbon adding the mixture into the mixed solution, and stirring to mix uniformly; and (c) adding hydrogenated rosin to the solution obtained in step (b), mixing and stirring uniformly to prepare a damping oil composition.

[0025] Preferably, in the step (a), since the polyisobutylene is mixed with the silicone oil with higher solubility, more organic matter can be dissolved, and the solubility of the mixed solution will be increased.

[0026] Preferably, the polyisobutene is heated to a temperature in the range of 70-100°C, more preferably 75-90°C, even more preferably 80°C.

[0027] According to a preferred embodiment of the present invention, the temperature of the mixed solution is maintained at...

Embodiment 1

[0032] Heat 5 parts by weight of polyisobutylene (produced by Shandong Hongrui Petrochemical Co., Ltd.) with an average molecular weight of 20,000 to 80°C, and mix with 1 part by weight of benzyl silicone oil with an average molecular weight of 2000 (produced by Dongguan Kefeng Textile Auxiliaries Industrial Co., Ltd.) were mixed uniformly to obtain a mixed solution. Then add 1.5 parts by weight of civil aviation kerosene JET B (produced by Xingxiang Chemical Co., Ltd.) to the mixed solution kept at 80°C and mix well, then add dihydrorosin (produced by Tianjin Jinweier Chemical Co., Ltd.) in the mixed solution Production) 0.5 parts by weight were mixed evenly to prepare damping oil 1.

[0033] Use the freezing point detector TC20 to measure the freezing point of the damping oil 1, and use the SNB-3 digital (LCD) viscosity measuring instrument to measure the damping oil 1 at -30°C, 0°C, normal temperature (~25°C) and 35°C. Viscosity, measurement result is shown in table 1.

Embodiment 2

[0035] Heat 5 parts by weight of polyisobutylene (produced by Shandong Hongrui Petrochemical Co., Ltd.) with an average molecular weight of 10,000 to 80°C, and mix it with 1 part by weight of benzyl silicone oil with an average molecular weight of 2,500 (produced by Dongguan Kefeng Textile Auxiliaries Industrial Co., Ltd.) were mixed uniformly to obtain a mixed solution. Then add 2 parts by weight of civil aviation kerosene JET B (produced by Xingxiang Chemical Co., Ltd.) to the mixed solution kept at 80°C and mix well, then add dihydrorosin (produced by Tianjin Jinweier Chemical Co., Ltd.) in the mixed solution Production) 1 weight part was mixed uniformly, thereby preparing damping oil 2.

[0036] The freezing point of the damping oil 2 was measured using the freezing point detector TC20, and the damping oil 2 was measured at -30°C, 0°C, normal temperature (~25°C) and 35°C using the SNB-3 digital (LCD) viscosity measuring instrument. Viscosity, measurement result is shown i...

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Abstract

The invention relates to a damping oil composition for a damper as well as a preparation method of the damping oil composition. The damping oil composition consists of (A) silicone oil, (B) polyisobutene, (C) a liquid hydrocarbon mixture and (D) hydrogenated rosin. The preparation method of the damping oil composition for the damper comprises the following steps: (a) heating polyisobutene to 70-100 DEG C, and then mixing with silicone oil to obtain mixed liquor; (b) adding the liquid hydrocarbon mixture into the mixed liquor, and uniformly stirring and mixing; and (c) adding the hydrogenated rosin into the liquor obtained in the step (b), and uniformly mixing and stirring to prepare the damping oil composition. The damping oil prepared by the method provided by the invention is wide in applicable temperature range, simple and convenient and feasible in production process, and applicable to batch production on a large scale.

Description

technical field [0001] The invention relates to a damping oil composition for a damper and a preparation method thereof. Background technique [0002] In the existing opening and closing parts with dampers such as automotive glove boxes, in order to make the glove box open with a small acceleration and stable opening during the opening process, a damping device is added to one side of the opening and closing parts to ensure that the glove box During the opening process, it is opened smoothly and powerfully, and the opening force is within an acceptable range. The dampers used in some opening and closing parts of automobiles use single silicone oil or composite polymer oil, but because the solidification point of the single oil is fixed, it is greatly affected by temperature, and the damping effect is also poor. There is a large temperature difference between the north and the south of our country. The suitable damping oil for damping devices in high temperature areas has a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N40/06
Inventor 金哲李隆欣
Owner BAIC MOTOR CORP LTD
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