Preparation method of zeolite microsphere sound-absorbing material

Abstract

The invention relates to a preparation method of a zeolite microsphere sound-absorbing material. The method comprises the steps of preparing a polyurethane solution with the concentration of 5-20%; placing the polyurethane solution on a magnetic stirrer to stir at a constant rate for 1-2 h; mixing zeolite materials with anhydrous ethanol to prepare a zeolite suspension, and using the magnetic stirrer to stir and make the zeolite suspension even; mixing the zeolite suspension with the polyurethane solution according to the mass ratio of 1:1 to prepare an electronic fuel injection liquid, and placing the electronic fuel injection liquid on the magnetic stirrer to stir at a constant rate for 1-2 h; adopting an electrostatic spraying technology to obtain the zeolite microsphere sound-absorbing material. The preparation method adopts the electrostatic spraying technology to prepare the zeolite microsphere sound-absorbing material, and has the advantages of artful technology, short preparation process, simple control and convenient operation.

Description

[0001] Technical field: [0002] The invention relates to the field of preparation of sound-absorbing materials, in particular to a preparation method of zeolite microsphere sound-absorbing materials. [0003] Background technique: [0004] With the increasing development of wearable device technology, electronic products tend to be lightweight and miniaturized. In many electronic products, micro speakers are indispensable, but the space that electronic products can give speakers is extremely limited. The space size It is determined that traditional sound-absorbing materials are difficult to meet people's requirements for improving the sound quality of micro-speakers. In recent years, it has been found that zeolite materials with a large number of micropores have good sound-absorbing effect and have great potential for application in micro-speakers. However, due to the small particle size of zeolite raw powder, it cannot be directly packaged in speaker modules. Zeolite powder n...

AI Technical Summary

Problems solved by technology

[0004] With the development of wearable device technology, electronic products tend to be lightweight and miniaturized. Micro speakers are indispensable in many electronic products, but the space that electronic products can give speakers is extremely limited. The space size It is determined that traditional sound-absorbing materials are difficult to meet people's requirements for improving the sound quality of micro-speakers