A kind of sound insulation and environment-friendly material for decoration and preparation method thereof

Abstract

The invention discloses a sound-insulating and environmentally-friendly material for decoration and a preparation method thereof. The sound-insulating and environment-friendly material includes a hard sound-insulating layer, a sound-absorbing layer and a protective layer, wherein the sound-absorbing layer is arranged between the hard sound-insulating layer and the protective layer, and the hard The sound insulation layer is set on the side opposite to the internal space, and the protective layer is set on the side close to the internal space. The hard sound insulation layer has pressing protrusions to reduce further impact on the external space. At the same time, the pressing protrusions can reduce the wall Resonance with the hard sound-insulating layer; the sound-absorbing layer consists of two thin layers of foamed polypropylene and a laminated fiber layer arranged between the two layers of foamed polypropylene, and the protective layer is a foamed polypropylene sheet , the laminated fiber layer has small connected and tortuous holes, which can achieve a good attenuation effect on high-frequency noise, while the closed-pore structure of the foamed polypropylene sheet can isolate medium-low to medium-high frequency noise, thereby achieving broadband Noise isolation and absorption.

Description

technical field [0001] The invention belongs to the technical field of environmental protection materials, and in particular relates to a sound insulation material for decoration and a preparation method thereof. Background technique [0002] With the construction of urbanization, the density of residents continues to increase, and urban residents are increasingly affected by noise in their lives. In order to reduce the impact of noise on residents' lives, in addition to the use of noise-reducing cement in the construction of residential buildings In addition to concrete, building materials such as sound insulation glass can also have a good noise reduction effect when decorating. However, due to the limited construction scope of building materials such as multi-layer glass, in some areas with high noise, it plays Noise reduction is also limited. [0003] The sound insulation effect of the improved space is to prevent internal noise from interfering with the external enviro...

AI Technical Summary

Problems solved by technology

[0002] With the construction of urbanization and the increasing density of residents, urban residents are also increasingly affected by noise in their lives. In order to reduce the impact of noise on residents' lives, in addition to using cement with noise reduction effects in the construction of residential buildings In addition to concrete, the use of building materials such as sound-insulating glass can also have a good noise reduction effect during decoration. However, due to the limited construction range of building materials such as multi-layer glass, in some areas with high noise, it can play an important role. Noise cancellation is also limited

[0003] The sound insulation effect of the improvement space is to prevent the internal noise from interfering with the external environment on the one hand, and to prevent the external noise from interfering with the internal environment on the other hand. Attenuation, or sound absorption through resonance, so in the prior art, common sound insulation and decoration materials are compounded with a variety of porous materials or fiber materials to achieve a noise reduction effect. Although this will have a good noise reduction effect, However, too thick materials also occupy space, and at the same time increase the difficulty of construction, and according to the principle of noise isolation, the sound insulation materials in the prior art can only isolate the noise of a narrow range of frequencies, and their sound insulation effect is limited in complex environments , in order to solve the above problems, the present invention provides the following technical solutions