A kind of high temperature resistant UV polymerized body foam damping material and preparation method thereof

Abstract

The invention relates to a high-temperature-resistant UV polymerization type body foam damping material and a preparation method thereof. The preparation includes: adding POSS, acrylate copolymer, reactive diluent and photoinitiator into a reactor, stirring and swelling to form a uniform UV polymerization type body foam Foam damping material composition: the obtained damping material composition is uniformly coated on a release PET film, and irradiated under ultraviolet light for 3-6 minutes to obtain a UV polymerized bulk foam damping material. The beneficial effects of the present invention are as follows: 1. Using POSS as the inorganic body foaming agent, by controlling the amount of POSS particles added, the product density can be precisely controlled according to the demand, and the loss factor of the material can also be improved; and POSS does not need any treatment, A stable nanoscale dispersion can be formed in the material system. 2. The technological process is simple, the reaction speed is fast, and the production efficiency is high, thereby reducing the cost.

Description

technical field [0001] The invention relates to the field of damping materials, in particular to a high-temperature-resistant UV polymerized bulk foaming damping material and a preparation method thereof. Background technique [0002] The vibration and noise generated by mechanical operation not only pollute the environment, but also affect the machining accuracy and product quality of the machine, accelerate the fatigue damage of the mechanical structure, and shorten the service life of the machine. Damping material is a material that converts solid mechanical vibration energy into heat energy and dissipates it. It is mainly used for vibration and noise control. The design principle of the damping material is: try to make the hysteresis loss as large as possible, the loss modulus is high, the storage modulus is low, and the effective damping temperature range is wide. The damping performance of a damping material can be measured in terms of its ability to dissipate vibrati...

AI Technical Summary

Problems solved by technology

Although the damping material prepared by this patent can solve the above problems to a certain extent, there are still the following disadvantages: 1. The technical route of this patent is very cumbersome and complicated, and the time and labor costs are high; 2. The damping performance of the material prepared by this patent It largely depends on the dispersion characteristics of inorganic particles. The inorganic particles used must first be treated with a silane coupling agent of a specific structure, otherwise they are easily precipitated from the system, or even agglomerated to cause serious phase separation. The service life is seriously affected; 3. The damping material prepared by this patent has a low service temperature, and the heat-resistant temperature is generally lower than 300°C, which cannot meet the use requirements of higher temperatures

Images