CN212097867U

CN212097867U - Mute pad

Info

Publication number: CN212097867U
Application number: CN202020369043.8U
Authority: CN
Inventors: 黄志强
Original assignee: Quanzhou Huasong New Material Technology Research Institute Co ltd
Current assignee: Quanzhou Huasong New Material Technology Research Institute Co ltd
Priority date: 2020-03-21
Filing date: 2020-03-21
Publication date: 2020-12-08
Anticipated expiration: 2030-03-21

Abstract

The utility model provides a mute pad, which is characterized in that the mute pad is formed by hot-pressing and compounding a polymer crystal contact layer, a high molecular damping structure layer, a main body material stable layer and an organic porous sound-absorbing fiber layer in sequence; the polymer crystal contact layer is a crystal-shaped object formed by cooling a polymer formed by melting high-purity iron powder and rubber; the polymer damping structure layer is made of polyvinyl chloride polymer; the main body material stable layer is formed by hot pressing of a superfine fiber net, and the organic porous sound-absorbing fiber layer is formed by hot pressing of polypropylene fibers. The utility model discloses can be used to the wall, the floor, the furred ceiling, the gymnasium, the dance room, rainwater pipeline, fresh air pipeline, large-scale venue, the recording studio, control computer lab, the carriage, boats and ships, high acoustic pressure region such as audio-visual place of entertainment can effectively block the vibration noise source.

Description

Mute pad

Technical Field

The utility model belongs to the technical field of the acoustic energy shock attenuation that gives sound insulation, concretely relates to silence pad.

Background

At present, the sound-proof felt in the prior art mainly uses a rubber and plastic product as a main material, and cannot effectively inhibit sound energy transmission and vibration noise. And the environmental protection performance is poor, which causes secondary pollution, for example, the total volatile organic compounds exceed the standard; the harmful substances include heavy metals such as formaldehyde, benzene, plumbum and mercury, radioactive substances, etc. The material structure is single and the construction is not standard; failure of moisture resistance causes failure of the main material due to mildewing, curing and deformation, and failure of project functionality due to human error understanding of sound absorption and insulation methods and other factors.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a silence pad, it can be used to wall, floor, furred ceiling, rainwater pipeline, fresh air pipeline etc to can provide multifrequency section acoustics sound insulation shock attenuation solution for large-scale venue, recording studio, control computer lab, boats and ships, and audio-visual place of entertainment etc.

The utility model provides a mute pad, which is formed by hot-pressing and compounding a polymer crystal contact layer, a high molecular damping structure layer, a main body material stable layer and an organic porous sound-absorbing fiber layer in sequence;

the polymer crystal contact layer is a crystal-shaped object formed by cooling a polymer formed by melting high-purity iron powder and rubber; the polymer damping structure layer is made of polyvinyl chloride polymer; the main body material stable layer is formed by hot pressing of an ultrafine fiber net; the organic porous sound-absorbing fiber layer is formed by hot pressing polypropylene fibers.

Compared with the prior art, the beneficial effects of the utility model are that:

the high-sound-pressure area is used for walls, floors, suspended ceilings, gymnasiums, dance rooms, rainwater pipelines, fresh air pipelines, large-scale venues, recording sheds, control machine rooms, carriages, ships, audio-video entertainment places and the like, and can effectively block vibration noise sources.

Drawings

Fig. 1 is a schematic structural diagram of a silence mat according to the present invention.

Reference numbers in the figures:

1-a polymer crystal contact layer; 2-a polymer damping structure layer; 3-a main body material stabilization layer; 4-organic porous sound-absorbing fiber layer.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

As shown in fig. 1, the present embodiment provides a sound-deadening pad, which is formed by sequentially hot-pressing and compounding a polymer crystal contact layer 1, a polymer damping structure layer 2, a main body material stabilizing layer 3, and an organic porous sound-absorbing fiber layer 4; the polymer crystal contact layer is a crystal-shaped object formed by cooling a polymer formed by melting high-purity iron powder and rubber; the polymer damping structure layer is made of polyvinyl chloride polymer substances, (PE), (PVC), (PS) (PVAC) (PP) (PMMA) and the like; the main body material stable layer is made of superfine fiber mesh through hot pressing, the damping tensile resistance is enhanced, the flexibility of the mute pad is enhanced, the mute pad can be produced according to different requirements, and the thickness is 1.2-5.0 mm; the organic porous sound-absorbing fiber layer is formed by hot pressing polypropylene fiber, and the thickness of the organic porous sound-absorbing fiber layer is 3.0-5.0 mm.

The mute pad is a multilayer medium-high density composite coiled material, is formed by processing a high molecular polymer damping vibration isolation material, organic compound rubber and organic mixed fiber, absorbs sound energy or mechanical energy by utilizing a damping part in viscoelasticity of a polymer material, is converted into heat energy to be dissipated, has shear modulus reduced by about three orders of magnitude and shows better low-frequency damping performance, and is combined with a polypropylene fiber (PP)3D76MM base material needling hot-pressing shaping process to form a porous sound energy absorption layer, and the material is characterized in that: uniform surface, moisture resistance, seepage resistance, high tensile strength, high temperature resistance, corrosion resistance, freezing resistance, oxidation resistance and the like. The acoustic control device has good sound insulation and shock absorption acoustic characteristics, effectively inhibits multi-band isolation vibration transmission, and plays a good noise control role. An interception layer is formed between the mute pad and the foundation structure layer, and the reflected energy and the transmitted energy of an incident sound source are effectively attenuated by cutting off the way of transmitting sound energy and a vibration source to the foundation structure, so that the aims of muting the sound environment of the main space and enhancing the sound insulation are fulfilled.

The test shows that the fireproof grade is B1 grade, and the Total Volatile Organic Compound (TVOC) is 0.045 mg/(m)²H) (72h) or less, the formaldehyde emission amount is 0.011mg/m³Environmental protection, no smell and no toxicity, and has good environmental protection performance.

The implementation scheme is as follows: and constructing the mute pad on the interlayer of the base plate, then installing the panel, and adopting strict construction standards. The method of laying the mute pad on the surface of the floor and constructing the wood floor is adopted, so that the impact sound insulation quantity of the floor is obviously improved, and the elastic foot feel of the ground can be enhanced. When the pipe carriage is constructed, the pipe carriage can be glued, so that the tightness is enhanced, and sound energy is prevented from penetrating. According to different parameters, selecting a mute pad with the thickness of 0.5-0.8cm, and constructing in multiple combinations. Through tests, the weighting A is between 20 dB and 35dB, and the noise vibration can be effectively reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A mute pad is characterized in that the mute pad is formed by hot-pressing and compounding a polymer crystal contact layer, a high molecular damping structure layer, a main body material stable layer and an organic porous sound-absorbing fiber layer in sequence;