Damping oil composition for damper as well as preparation method thereof

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 ...

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