A high-molecular damping liquid, a preparation method and application thereof

By combining polymer materials such as liquid butyl rubber, liquid nitrile rubber, and polysiloxane, and utilizing the dual mechanisms of intramolecular friction and flow channel friction, the problem of reduced damping effect of traditional damping fluids under extreme deformation is solved, and effective damping and vibration reduction at different frequencies is achieved.

CN117659579BActive Publication Date: 2026-06-30ANHUI WELLING AUTO PARTS CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
CN202311669836.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-07
Publication Date
2026-06-30
Estimated Expiration
2043-12-07

AI Technical Summary

Technical Problem

Traditional damping fluids lose their damping and vibration reduction effect significantly when the deformation of the parts reaches its limit and the volume of the flow channel cavity shrinks, and cannot effectively absorb vibration energy.

Method used

The combination of high-molecular materials, liquid butyl rubber, liquid nitrile rubber and polysiloxane, utilizes the side group resistance of the molecular chain to generate intramolecular friction, absorb vibrational energy, and generate heat through friction in the flow channel to convert it into thermal energy, thus achieving a dual shock absorption effect.

Benefits of technology

It can effectively absorb vibration energy under both low-frequency large amplitude and high-frequency vibration, providing good damping and vibration reduction effect, and has a dual vibration reduction mechanism.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This invention provides a polymeric damping fluid, its preparation method, and its application, belonging to the field of damping and vibration reduction technology. The polymeric damping fluid disclosed in this invention comprises the following raw materials: liquid butyl rubber, liquid nitrile rubber, and polysiloxane. The liquid butyl rubber, liquid nitrile rubber, and polysiloxane in the polymeric damping fluid of this invention have numerous and large side groups on their molecular chains. When subjected to external force, the sliding between the molecular chains is hindered by these side groups, generating intramolecular frictional damping. This converts the applied force into intramolecular frictional heat, thereby utilizing the inherent polymeric damping material properties of the damping fluid to absorb the transmitted vibrations and achieve self-damping vibration reduction. Therefore, the polymeric damping fluid of this invention has a dual vibration reduction effect, namely, external frictional vibration reduction and self-damping vibration reduction, resulting in excellent damping and vibration reduction performance.
Need to check novelty before this filing date? Find Prior Art