High damping rubber for precision instruments

CN122167905APending Publication Date: 2026-06-09BEIJING RES & DESIGN INST OF RUBBER IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING RES & DESIGN INST OF RUBBER IND
Filing Date
2024-12-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing damping materials are difficult to provide excellent damping performance in precision instruments over a wide frequency and temperature range, especially in terms of poor vibration reduction effect in the frequency range of 10Hz to 1000Hz and the temperature range of -50℃ to 200℃.

Method used

High-damping rubber is prepared by using a combination of butyl rubber and natural rubber, with the addition of damping fillers such as talc, mica powder, fiber and silicone oil, through a specific mixing process to meet the needs of precision instruments.

Benefits of technology

It achieves high damping performance in the frequency range of 10Hz to 1000Hz and the temperature range of -50℃ to 100℃, which can effectively reduce vibration and is suitable for vibration damping dampers for precision instruments such as computer hard drives and home appliances.

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Abstract

This invention relates to a high-damping rubber for precision instruments. The high-damping rubber of this invention comprises the following components in parts by weight: 80-100 parts butyl rubber, 20-10 parts natural rubber, 3-10 parts zinc oxide, 0.5-3 parts stearic acid, 1-3 parts antioxidant, 1-3 parts accelerator, 20-40 parts damping filler, and 10-30 parts oil. The beneficial effect of this invention is that the rubber possesses excellent damping performance. When applied to a precision instrument, this rubber can achieve a balance between energy absorption and dissipation within a certain vibration frequency range. To increase hysteresis loss during applied vibration and thus improve damping performance, i.e., to effectively and rapidly attenuate the vibration energy, the high-damping component is generally formed from a high-damping composition containing the aforementioned base polymer, with the peak of the loss tangent (tanδ) adjusted to enter the operating temperature range of the high-damping component.
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