Method for preparing wide-temperature-range high-frequency high-damping rubber materials

A damping rubber, high frequency technology, which is applied in the preparation of wide temperature range, wide frequency and high damping rubber materials, and the preparation of rubber-based damping materials, can solve the problem of poor high temperature stability of damping materials, difficulty in removing organic solvents, and reduce damping peaks. Height and other issues, to achieve the effect of simple and reliable processing, improved mechanical properties, and improved damping performance
CN102775659BInactive Publication Date: 2014-04-02SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2014-04-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing wide-temperature-range high-frequency high-damping rubber materials. The method includes the following steps of preparing rubber compound by epoxidation natural rubber, softener, filler, damping intensifier, vulcanizing auxiliary and vulcanizing agent at the temperature of 40-150 DEG C, standing, vulcanizing in a certain condition to prepare the wide-temperature-range high-frequency high-damping rubber materials. Damping performance is improved by utilizing the epoxidation natural rubber as rubber base body and acidulated multiwall carbon nano tube. By utilizing phenolic resin as vulcanizer and double-bond generation chemical reaction of end reactive group in the phenolic resin and the epoxidation natural rubber, the epoxidation natural rubber can be subjected to crosslinking, and meanwhile, effective temperature range and frequency range of damping of the epoxidation natural rubber damping materials are broadened by means of hydrogen bond action between epoxy group of the epoxidation natural rubber and phenolic hydroxyl group of the phenolic resin, and has excellent mechanical performance. Further, the method for preparing wide-temperature-range high-frequency high-damping rubber materials has the advantages of simplicity in process and low cost.
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Description

technical field

[0001] The invention belongs to the field of material chemistry, and relates to a preparation method of a rubber-based damping material, in particular to a preparation method of a wide temperature range, wide frequency and high damping rubber material. Background technique

[0002] With the rapid development of modern industry, the hazards caused by mechanical vibration and noise are becoming more and more serious in engineering, and the threat of natural disasters such as earthquakes to the safety of people's lives and property is becoming more and more prominent. Shock and noise reduction technology is an urgent problem in today's society. One of the technical issues.

[0003] Because different vibrations have different frequencies, such as vibrations caused by earthquakes and winds, the vibration frequency is lower than 20Hz, while the vibration frequency of various mechanical equipment is as high as several kilohertz. Therefore, it is of great practical s...

Claims

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