CN205310994U

CN205310994U - Sound insulation cotton

Info

Publication number: CN205310994U
Application number: CN201521142222.3U
Authority: CN
Inventors: 汪建疆
Original assignee: Zhejiang Qianfeng Automobile Parts Co Ltd
Current assignee: Zhejiang Qianfeng Automobile Parts Co Ltd
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2016-06-15
Anticipated expiration: 2025-12-28

Abstract

The utility model discloses a sound insulation cotton, include from last aluminium foil layer, sponge puigging, the expanded polytetrafluoroethylene layer that sets gradually extremely down, melt and spout high polymer fibrous layer, expanded polytetrafluoroethylene layer, sponge puigging, aluminium foil layer, bond through the gluing agent between each layer, the surface on aluminium foil layer is equipped with a plurality of spaceds arch. An object of the utility model is to provide an inhale sound, the effectual sound insulation cotton of sound insulation.

Description

Sound-proof material

Technical field

The utility model relates to sound-absorbing material field, is specifically related to a kind of Sound-proof material.

Background technology

Noise directly affects the physical and mental health of people and the raising of quality of life, is in noise environment for a long time, and hearing loss can be caused even may to bring out some diseases, away from noise, and what we can accomplish is exactly sound-absorbing and sound insulation. Sound-proof material, it is possible to the high-frequency noises produced in life vibration can be converted to the kinetic energy of the fine count fiber of Sound-proof material inside and lead into heat energy and disappear, reach the function of absorbing sound and lowering noise.

Sound-proof material can be superimposed with multi-layer nonwoven fabrics, or other materials of arranging in pairs or groups make sound-absorbing, acoustic material. Non-woven fabrics is that textile staple or long filament are carried out orientation or random alignment, form fibre net structure, present many tiny gaps, this kind of gap has adsorption function, therefore, Sound-proof material can be set to porous material, has good sound-absorbing, soundproof effect, Sound-proof material is widely used in the industries such as building, electrical equipment, automobile, machinery as a kind of liner material, mainly plays the effect of sound insulation.

Practical novel content

The purpose of this utility model is the Sound-proof material providing a kind of sound-absorbing, soundproof effect good.

In order to realize above-mentioned purpose, the technical solution adopted in the utility model is:

A kind of Sound-proof material, it is characterized in that: comprise under arrange successively aluminium foil layer, sponge sound insulation layer, eptfe layer, melt-blown high polymer fibre layer, eptfe layer, sponge sound insulation layer, aluminium foil layer, bonding by the glutinous agent of glue between each layer; The outer surface of described aluminium foil layer is provided with the projection at some intervals.

The utility model is also set to further, and described sponge sound insulation layer is melamine sponge.

The utility model is also set to further, and described melt-blown high polymer fibre layer is meltblown polypropylene fibres thin layer.

The utility model is also set to further, and described eptfe layer is grease-proof and waterproof modification eptfe layer.

The utility model is also set to further, and the thickness of described sponge sound insulation layer is 0.08-0.17mm.

The utility model has following advantage compared to existing technology: (1) melt-blown high polymer fibre layer and eptfe layer formed have a large amount of, that interpenetrate, from table to the material of inner micropore. This many micropores matter sound-absorbing material well can fall sound consumption; (2) aluminium foil layer plays the effect strengthening product strength, and has good sound insulation effect, and coordinates sponge sound insulation layer, can reach good sound-absorbing, soundproof effect; (3) its perforate rate height of melamine sponge, has good damping and sound-absorbing effect; (4) outer surface of aluminium foil layer is provided with the projection at some intervals, it is possible to absorbs, reflect more noise, and noise absorption is intercepted so that this Sound-proof material has sound insulation noise reduction effect very efficiently.

Accompanying drawing explanation

Fig. 1 is structure schematic diagram of the present utility model.

Number in the figure implication: 1-aluminium foil layer; 2-sponge sound insulation layer; 3-eptfe layer; 4-is protruding; The melt-blown high polymer fibre layer of 5-.

Specific embodiment party formula

Below in conjunction with drawings and Examples, specific embodiment party formula of the present utility model is described in further detail. Following examples are for illustration of the utility model, but are not used for limiting scope of the present utility model.

Below with reference to Fig. 1, the utility model is described.

A kind of Sound-proof material, comprise under arrange successively aluminium foil layer 1, sponge sound insulation layer 2, eptfe layer 3, melt-blown high polymer fibre layer 5, eptfe layer 3, sponge sound insulation layer 2, aluminium foil layer 1, agent is sticked by glue bonding between each layer, the thickness of described sponge sound insulation layer 2 is 0.08-0.17mm, sponge sound insulation layer 2 is melamine sponge, its perforate rate height of melamine sponge, has good damping and sound-absorbing effect; The outer surface of described aluminium foil layer 1 is provided with the projection 4 at some intervals, and protruding 4 is circular arc, and sound is had good launching effect by protruding 4, makes the soundproof effect of aluminium foil layer 1 better.

Described melt-blown high polymer fibre layer 5 is meltblown polypropylene fibres thin layer, and described eptfe layer 3 is grease-proof and waterproof modification eptfe layer.

Melt-blown high polymer superfine fibre (PP polypropylene or PET polyester) random melt-blown distribution is bonded together and forms thin layer micropore clearance material, white appearance, smooth, neither too hard, nor too soft, material fiber fineness is 1～10 μm, having bigger specific surface to amass, higher porosity (> 75%) superfine fibre random distribution provides more hot-gluing machine meeting between fiber. by this melt-blown high polymer superfine fibre and expanded PTFE (ePTFE) film (micropore diameter, at 0.01～20 μm, every square centimeter has several hundred million micro-porous permeable gaps) compound. after melt-blown high polymer superfine fibre layer and expanded PTFE (ePTFE) Film laminated, its structure is: material has a large amount of, interpenetrate, from table to inner micropore, namely also there is certain gas permeability. the sound-absorbing principle of many micropores matter sound-absorbing material is vibrate air when passing in and out from slot, and air molecule and material and self friction, be transformed into heat energy acoustic energy, consumed. Kong Yue is how more close, sound-absorbing ability is stronger, define the special function new material of a kind of high performance efficient full sound-absorbing frequently, when sound wave incident is to this many micropores new material surface, cause the air vibration in micropore, due to viscid resistance and the conduction of heat of frictional resistance and air, quite a few acoustic energy is converted into heat energy, sound equipment acoustic pressure reduces 4～6dB in all frequency range, it is complete that sound-absorbing effect is fairly obvious frequently, especially centering low frequency noise absorbs better, it is applied on high-fidelity audio equipment, noise can be absorbed in whole frequency range, leave dulect music, it is used in indoor environment, on automobile or dynamo-electric equipment, to be absorbed degree big for noise, its ambient noise will greatly reduce, to people's comfortable environment.

The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model technology principle; can also making some improvement and modification, these improvement of above-mentioned hypothesis and modification also should be considered as protection domain of the present utility model.

Claims

1. a Sound-proof material, it is characterized in that: comprise under arrange successively aluminium foil layer, sponge sound insulation layer, eptfe layer, melt-blown high polymer fibre layer, eptfe layer, sponge sound insulation layer, aluminium foil layer, bonding by the glutinous agent of glue between each layer; The outer surface of described aluminium foil layer is provided with the projection at some intervals.

2. a kind of Sound-proof material according to claim 1, it is characterised in that: described sponge sound insulation layer is melamine sponge.

3. a kind of Sound-proof material according to claim 1, it is characterised in that: described melt-blown high polymer fibre layer is meltblown polypropylene fibres thin layer.

4. a kind of Sound-proof material according to claim 1, it is characterised in that: described eptfe layer is grease-proof and waterproof modification eptfe layer.

5. a kind of Sound-proof material according to claim 1 and 2, it is characterised in that: the thickness of described sponge sound insulation layer is 0.08-0.17mm.