[go: up one dir, main page]

WO2012126141A1 - 吸隔音复合材料结构 - Google Patents

吸隔音复合材料结构 Download PDF

Info

Publication number
WO2012126141A1
WO2012126141A1 PCT/CN2011/000481 CN2011000481W WO2012126141A1 WO 2012126141 A1 WO2012126141 A1 WO 2012126141A1 CN 2011000481 W CN2011000481 W CN 2011000481W WO 2012126141 A1 WO2012126141 A1 WO 2012126141A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
polyethylene film
woven fabric
fabric layer
absorbing
Prior art date
Application number
PCT/CN2011/000481
Other languages
English (en)
French (fr)
Inventor
林明阳
潘国良
Original Assignee
三香科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三香科技股份有限公司 filed Critical 三香科技股份有限公司
Priority to JP2014500220A priority Critical patent/JP2014514603A/ja
Priority to PCT/CN2011/000481 priority patent/WO2012126141A1/zh
Priority to US14/006,134 priority patent/US20140008145A1/en
Publication of WO2012126141A1 publication Critical patent/WO2012126141A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating

Definitions

  • the invention relates to a structure of a sound-absorbing and sound-insulating composite material, in particular to a layer of at least one non-woven fabric (Non Woven) fiber layer made of recycled environmentally-friendly fiber material and at least one polyethylene film, which can be excellently formed. Sound absorption effect.
  • a non-woven fabric Non Woven
  • the definition of "sound absorption” is different from the definition of "sound insulation”.
  • the principle of "sound absorption” is to absorb and weaken the sound until it disappears. The principle is that the sound absorbing material receives the incident sound wave, and the sound energy will cause the elastic fiber in the sound absorbing material. Oscillating, or causing air molecules in the material cavity to collide with each other, causing machinery It can attenuate and convert the vibration energy of the sound into heat energy, which makes the amplitude of the sound wave smaller and the volume naturally becomes smaller.
  • the “sound insulation” is focused on the reflection or refraction of the sound to prevent it from being isolated from the receiving end. Therefore, “sound absorption” and “sound insulation” are different in the principle of action and the efficiency of use.
  • the incident sound wave should be easily injected into the sound absorbing material to attenuate the inside of the sound absorbing material; For the effect, the incident sound wave should be reduced to enter the sound absorbing material to be blocked.
  • the above two mechanisms are often contradictory. Therefore, it is often difficult to combine the "sound absorption” and “sound insulation” effects of the same material, and it must be applied in a multi-layer manner to exhibit better sound absorption.
  • the sounds that come into contact with everyday life can be divided into high frequency, medium frequency and low frequency.
  • the middle and high frequency sounds are those with high frequency and small amplitude, and the sound is relatively harsh, which makes it difficult to bear it. Therefore, how to quickly absorb medium and high frequency sounds is the primary task of sound absorbing materials.
  • some of the sound-absorbing materials of the general knowledge are biased towards good absorption of high-frequency sound energy, but it is not conducive to absorbing mid-range sound and the sound-absorbing ability is not durable.
  • some sound-absorbing materials are heavy in absorbing mid-range sound, but high-frequency The sound is absorbed. Therefore, it is still difficult to obtain a material or composite material which is sufficient for sound absorption of medium and high frequency sounds.
  • the thickness of the sound absorbing material is theoretically up to a quarter of the wavelength (amplitude) of the sound wave to achieve a complete sound absorbing effect.
  • the medium and low frequency noise has a longer wavelength. If the ratio of the material thickness to the wavelength is small, the acoustic energy of the medium and low frequency noise will directly cross the material, and it is not easy to generate attenuation inside the sound absorbing material. Therefore, for the absorption of low- and medium-frequency sound waves, it is not only desirable to rely on the attenuation mechanism that the sound waves are injected into the sound-absorbing material, so it is often half the effort.
  • the inventor has been engaged in the research, development, and manufacturing of various non-woven materials for many years, and has deep experience in various manufacturing methods for non-woven fabrics. He also knows that the use of non-woven fabrics is quite extensive, and there have been attempts to make material formulations and manufacturing methods from non-woven fabrics. A sound-absorbing material that finds good results, but it has not yet There are satisfactory results. Therefore, how to invent a good sound absorbing material made of recycled environmentally friendly materials is the goal of the inventor's efforts and development.
  • the main object of the present invention is to provide a structure of a sound-absorbing and sound-insulating composite material with good sound-absorbing effect, which can have good sound-absorbing effects for medium and high frequency sounds and medium and low frequency sounds.
  • the creative focus of the present invention is to effectively combine the physical mechanism of sound insulation and sound absorption with innovative thinking, which creates a surface layer with high damping characteristics on the surface of the sound absorbing material, so that the sound wave has been effective on the surface layer of the material before it enters the sound absorbing material.
  • the energy is attenuated so that sound waves entering the interior of the material are more susceptible to energy attenuation.
  • the sound wave transmitting molecule is a table tennis ball
  • the surface layer as a hard wall surface or a resilient surface material
  • a corresponding obvious _ rebound that is, sound wave reflection
  • the material hit by the table tennis ball has a highly damped and inelastic surface layer such as cloth rope or mud
  • the impact energy of the table tennis ball will be absorbed by the surface layer, and the rebound force will become very small.
  • the present invention creates a material having both sound absorbing and sound insulating effects by this principle of action, and the present invention
  • the amplitude can be amplified, so it is not affected by the related mechanisms such as wavelength and frequency. It does not have the limitation of low frequency effect, and it can produce good sound absorption for a wide range of frequencies.
  • the invention designs a sound-absorbing and sound-insulating composite material structure, which is composed of at least one non-woven fabric layer and at least one polyethylene film; the non-woven fabric layer is a fiber laminated layer made by a non-woven fabric manufacturing method, and the forming thickness is lmm ( Inclusive, the thickness of the polyethylene film is between 0.009 mm and 0.1 mm; The surface of the vinyl film is unfavorable to the passage of air molecules, and the air molecules can be intercepted. Because of the thin thickness, the elasticity is deteriorated, and the absorption of damping occurs, so that the sound energy reaches the surface of the polyethylene film to a certain extent.
  • a sound-absorbing composite material structure characterized in that: at least one non-woven fabric layer and at least one polyethylene film are closely attached; the non-woven fabric layer is a fiber laminated layer made by a non-woven fabric manufacturing method, and the forming thickness is Lmm or more; the thickness of the polyethylene film is between 0.009 mm and 0.1 mm.
  • the non-woven fabric layer and the polyethylene film are closely attached, and the non-woven fabric layer is a fiber laminated layer made by a non-woven fabric manufacturing method, and the forming thickness is 1 mm or more; the thickness of the polyethylene film is Between 0.009 mm and 0.1 mm.
  • a second polyethylene film is more closely adhered on the surface of the non-woven fabric layer, and the thickness of the second polyethylene film is between 0.009 mm and 0.1 mm.
  • a second non-woven fabric layer is further affixed on the surface of the second polyethylene film, and the second non-woven fabric layer is a fiber-reinforced laminated layer made by a non-woven fabric manufacturing method, and the molding thickness is lmm or lmm. the above.
  • a third polyethylene film is more closely adhered on the surface of the second non-woven fabric layer, and the third polyethylene film has a thickness of between 0.009 mm and 0.1 mm.
  • a third non-woven fabric layer is more closely laid on the surface of the third polyethylene film
  • the third non-woven fabric layer is a fiber laminated layer made by a non-woven fabric manufacturing method, and has a molding thickness of 1 mm or more.
  • a fourth polyethylene film is more closely adhered on the surface of the third non-woven fabric layer, and the fourth polyethylene film has a thickness of between 0.009 mm and 0.1 mm.
  • FIG. 1 is a schematic view showing the structure of a "single layer and single stick type" according to a first embodiment of the present invention
  • FIG. 2 is a schematic view showing the structure of a "single layer and double stick type” according to a second embodiment of the present invention
  • FIG. 4 is a schematic structural view of a "double-layer double-ply type” according to a fourth embodiment of the present invention.
  • FIG. 5 is a "three-layer single-ply type” according to a fifth embodiment of the present invention.
  • FIG. 6 is a schematic structural view showing a structure of a "three-layer double-ply type” according to a sixth embodiment of the present invention.
  • the third non-woven fabric layer 30 ...polyethylene film
  • a first embodiment of the present invention is a sound-absorbing composite material 10 , a structural base.
  • the present invention is composed of at least one non-woven fabric layer 20 and at least one polyethylene film 30 (Polyethylene, PE). Therefore, FIG. 1 is an expression of the sound-absorbing composite material 10 from a non-woven fabric layer 20 and a polyethylene film 30.
  • the structural diagram of the close-packed composition is called "single-layer single-stick type".
  • the non-woven fabric layer 20 is a fiber laminated layer made by a non-woven fabric manufacturing method, and can be made of recycled environmentally-friendly fiber material to achieve environmental protection, energy saving and carbon reduction, but can not be excluded from any fiber material;
  • the main function is to support one (at least one) fiber-stacked layer which is interlaced by most fibers and has a plurality of interlaced three-dimensional space inside; the thickness of the polyethylene film 30 is from 0.009 mm to 0.1. Between mm. When combined, the area of the non-woven fabric layer 20 and the polyethylene film 30 must be equal, so that the polyethylene film 30 is laid flat on the surface of the non-woven fabric layer 20, and polyethylene is used in various suitable manners.
  • the film 30 and the non-woven fabric layer 20 are closely bonded to each other, for example, the two can be closely bonded together in a frame-tight support manner, or can be laminated by means of lamination, burning, gluing or hot-melt bonding.
  • the vinyl film 30 is adhered to the surface of the nonwoven fabric layer 20.
  • the polyethylene film 30 on the sound absorbing composite material 10 faces the incident direction of the sound, and when the air molecules transmitting the sound wave energy contact the polyethylene film 30, the surface layer of the polyethylene film 30 is firstly applied. Blocking and absorbing energy, so that only the energy of the incompletely attenuated portion passes through the polyethylene film 30 into the interior of the nonwoven fabric layer 20; then, in the multi-interlaced three-dimensional space inside the non-woven fabric layer 20, the air molecules are multidirectional. Reflection, refraction, etc.
  • the vinyl film 30 thus achieves an effect of efficient sound absorption. Therefore, it is understood that when the sound absorbing composite material 10 of the first embodiment of the present invention is used, the double action effect of efficient sound absorption and sound insulation can be achieved.
  • the sound absorbing composite material of the present invention is substantially composed of at least one nonwoven fabric layer and at least one polyethylene film. Therefore, the sound-absorbing and sound-insulating composite material 11 of the second embodiment of the present invention is composed of a non-woven fabric layer 20, a polyethylene film 30 and a second polyethylene film 31 as shown in FIG. Double paste type."
  • the non-woven fabric layer 20 is a fiber laminated layer made by a non-woven fabric manufacturing method, and can be made of recycled environmentally-friendly fiber materials to achieve environmental protection, energy saving and carbon reduction.
  • the forming thickness is above 1mm (inclusive), the main function is to support one (at least one) fiber stacking which is made up of many fibers staggered and has a lot of interlaced three-dimensional space inside.
  • the thickness of the polyethylene film 30 and the second polyethylene film 31 is between 0.009 mm and 0.1 mm.
  • the non-woven fabric layer 20 is bonded to the polyethylene film 30 and the second polyethylene film 31 in a suitable manner, for example: a supportable manner in which the frame is stretched at the periphery.
  • the polyethylene film 30 and the second polyethylene film 31 are adhered to the surface of the nonwoven fabric layer 20, respectively, by means of lamination, burning, gluing or hot-melt bonding.
  • a sound-absorbing composite material 11 is formed on the surface of the layer 20, the non-woven fabric layer 20, respectively, by means of lamination, burning, gluing or hot-melt bonding.
  • the polyethylene film 30 and the second polyethylene film 31 on the sound absorbing composite 11 can face the incident direction of the sound, and when the air molecules transmitting the acoustic energy contact the polyethylene film 30 or the first
  • the polyethylene film 31 is used, it is first blocked by the polyethylene film 30 and the surface layer of the second polyethylene film 31 and absorbs energy, so that only part of the energy that is not completely attenuated passes through the polyethylene film 30 and the second polymerization.
  • the vinyl film 31 enters the interior of the non-woven fabric layer 20; and the remaining acoustic energy is in the interlaced three-dimensional space inside the non-woven fabric layer 20, and then impacted by multi-directional reflection, refraction, etc.
  • the sound-absorbing and sound-insulating composite material 12 of the third embodiment of the present invention is densely composed of a polyethylene film 30, a nonwoven fabric layer 20, a second polyethylene film 31 and a second nonwoven fabric layer 21.
  • the composition is called "double-layer single-stick type".
  • the non-woven fabric layer 20 and the second non-woven fabric layer 21 are all made of a non-woven fabric manufacturing method, and the forming thickness is 1 mm or more.
  • a fiber laminated layer which is formed by interlacing a plurality of fibers and having a plurality of interlaced three-dimensional spaces therein; the thickness of the polyethylene film 30 and the second polyethylene film 31 is Both are between 0.009mm and 0.1mm.
  • the area of the non-woven fabric layer 20 and the second non-woven fabric layer 21 and the polyethylene film 30 and the second polyethylene film 31 must be equal, so that the polyethylene film 30 and the second polyethylene film 31 respectively
  • the tiled adhesive layer is bonded to the surface of the nonwoven fabric layer 20, and then the second nonwoven fabric layer 21 is further affixed and bonded to the other side surface of the second polyethylene film 31, and is also used in various suitable manners.
  • the polyethylene film 30, the non-woven fabric layer 20, the second polyethylene film 31, and the second non-woven fabric layer 21 are combined, for example, the four can be closely attached or supported in a frame-tight manner at the periphery, or can be used.
  • the polyethylene film 30 and the second polyethylene film 31 are adhered to the surfaces of the nonwoven fabric layer 20 and the second nonwoven fabric layer 21, respectively, by means of lamination, burning, gluing or hot-melt bonding.
  • the sound absorbing composite material 12 of the third embodiment of the present invention is further provided with a second nonwoven fabric layer 21 in the constitution of the second embodiment.
  • the polyethylene film 30 faces the incident direction of the sound, and thus has the effect of high-efficiency sound absorption and sound insulation as in the first embodiment.
  • the second polyethylene film 31 is passed through the second non-woven fabric layer 21, and then the The interior of the second nonwoven fabric layer 21 is subjected to a second heavy sound absorbing effect.
  • the sound-absorbing and sound-insulating composite material of the present invention is structurally composed of at least one non-woven fabric layer and at least one polyethylene film, and the third embodiment is further provided with a third polyethylene film 32 to bond the adhesive.
  • the structure of the sound-absorbing composite material 13 of the fourth embodiment shown in Fig. 4 is formed, which is called "double-layer double-stick type".
  • the polyethylene film 30 and the third polyethylene film 32 on the sound absorbing composite material 13 can face the incident direction of the sound, so that sound waves enter the nonwoven fabric layer 20 Or in the second non-woven fabric layer 21, to achieve the effect of efficient sound absorption and sound insulation.
  • the non-woven fabric layer 20 or the second non-woven fabric layer 21 which are not energized for the first time, they enter the second non-woven fabric layer through the second polyethylene film 31. 21 or after the nonwoven fabric layer 20 is subjected to the second heavy suction Sound insulation.
  • the fourth embodiment is further provided with a third non-woven fabric layer 22 to bond the adhesive to the outer surface of the third polyethylene film 32.
  • the sound-absorbing and sound-insulating composite material 14 of the fifth embodiment shown in Fig. 5 is referred to as a "three-layer single-ply type". Therefore, the sound wave absorbed by the second nonwoven fabric layer 21 penetrates the third polyethylene film 32 and enters the third nonwoven fabric layer 22 to be subjected to the third heavy sound absorbing effect.
  • the fifth embodiment is further provided with a fourth polyethylene film 33 to bond the adhesive layer to the outer surface of the third nonwoven fabric layer 22, thereby forming the sound-absorbing and sound-insulating composite material of the sixth embodiment shown in FIG. 15, called "three-layer double-stick type", which is a continuous three-fold sound-absorbing effect on sound waves to convert sound waves into invisible.
  • the basic structure of the sound-absorbing and sound-absorbing composite material of the present invention is composed of at least one non-woven fabric layer and at least one polyethylene film, wherein the non-woven fabric layer is a fiber laminated layer made by a non-woven fabric manufacturing method, and is formed.
  • the thickness is above 1mm (inclusive), and the thickness of the polyethylene film is between 0.009mm and 0.1mm. Therefore, the present invention may have a "single-layer single-ply type" basic form composed of a non-woven fabric layer and a polyethylene film, and then may also have a basic pattern plus a polyethylene film for non-woven fabric.
  • the "single layer double paste type" change pattern on the other side of the fiber layer.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Textile Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)

Description

吸隔音复合材料结构 技术领域
本发明是关于一种吸隔音复合材料结构， 特别是指一种由再生环保纤维材 料制成的至少一不织布 （Non Woven) 纤维层及至少一聚乙烯膜所密贴组成， 而 能具有极佳的吸隔音效果。
背景技术
在一般日常生活环境中， 会有许多必须运用到良好吸音及 /或隔音效果之 处。 最常见的就是， 高级轿车内为求乘坐舒适及良好的音响效果， 因此必须利 用到具有良好吸音及隔音效果的材料， 以隔绝及吸收外来的中高频吵杂声音， 以及车辆行驶时本身所产生的中低频噪音与共振。 若吸音及隔音效果不佳， 即 难以表现出高级轿车的价值感， 因此吸音及隔音材料用于汽车内装时可显示出 吸音及隔音功效的优劣， 极为重要。 另常见的是， 目前住家皆比邻而居， 故在 一般居家环境中， 也常会有必须加强吸音及隔音效果之处。 例如自家若设有
KTV音响， 则必须加强音响室的吸音及隔音效果， 以彰显欢唱娱乐效果， 且免 扰邻居而损及情谊。又如住家为阻隔外界噪音或杂音 (例如： 道路汽车行驶的声 音、 警报突响的尖锐声音、 邻居小孩的哭闹声、 或邻居冷气机的运转声， 甚或 邻居欢唱 KTV的吵杂声等)， 所以在建材或门窗缝隙阻隔上也会选择性采用吸 音及 /或隔音材料来设置。 综上所列， 均显示目前对于吸音及隔音效果的重视。
「吸音」 与 「隔音」 的定义有所不同， 「吸音」重在将声音吸收并加以减弱 直至消失， 其原理是使吸音材料接受入射音声波进入， 则音波能量会促使吸音 材料内的弹性纤维振荡、 或使材料孔穴内空气分子互相撞击摩擦， 而造成机械 能衰减， 并将音波振动能量转变为热能， 使得音波振幅变小， 音量自然也就变 小。 而 「隔音」 则重在将声音反射或折射使之隔绝于接收端之外， 达到阻绝的 作用。 故 「吸音」 与 「隔音」 二者在作用原理及使用功效上是有所不同， 一般 为增进吸音效果， 应该使入射声波容易射入吸音材料内部， 以便在吸音材料内 部衰减；而为增进隔音效果，则应该减少入射声波进入吸音材料使其受到阻绝。 上述二种机制经常互相矛盾， 因此同一材料常难以兼顾 「吸音」 与 「隔音」 效 果， 而必须由多层方式搭配应用， 方可展现较佳的吸隔音效果。
一般而言， 日常生活中所接触到声音大概可分成高频、 中频及低频三种。 其中， 中高频音为频率高振幅小者， 声响相对较为刺耳， 令人一听即难以忍受， 故如何快速吸收中高频音， 即是吸音材料首要任务。 而习知林林总总的吸音材 料中， 有些偏重于对高频音能有良好的吸收能力， 但却不利于吸收中频音且吸 音能力不持久， 反之有些吸音材料重在吸收中频音， 但对高频音就吸收无方。 故尚难觅得一种材料或复合材料足以对中高频音皆有良好吸音效果。
因声波的波长与频率成反比， 理论上吸音材料厚度要达到声波波长 (振幅) 的四分之一以上方能达到完全的吸音效果。 而中低频噪音的波长较长， 若材料 厚度相对于波长的比例很小， 则中低频噪音的声波能量将直接跨过材料， 而不 易在吸音材料内部产生衰减。 因此， 对于中低频声波的吸收， 不能只期望依赖 声波射入吸音材料内部的衰减机制来达成， 如此往往事倍功半。
本发明人多年从事各种不织布材料的研究及开发制造工作， 对于不织布的 各种制造工法皆有深厚经验， 也深知不织布的使用颇为广泛， 并且一直有人尝 试从不织布的材料配方及制造工法中寻得良好效果的吸隔音材料， 但迄今仍未 有令人满意的结果出现。 因此如何发明出一种以再生环保材料制造的良好吸隔 音材料， 即为本发明人努力及发展的目标。
发明内容
本发明的主要目的是提供一种吸隔音效果良好的吸隔音复合材料结构， 可 对中高频音及中低频音皆具有良好的吸音效果。
本发明的创作重点在于以创新思维将隔音与吸音的物理机制做有效结合， 其在吸音材料表面创造一高阻尼特性的表面层， 使声波尚未进入吸音材料前即 己在材料表面层上产生有效的能量衰减， 以使进入材料内部的声波更容易产生 能量衰减作用。 为方便说明本发明的作用原理， 先以假设他物为例作说明， 如 此较为容易了解。 假设声波传递分子为一乒乓球， 则当乒乓球撞击表面层为坚 硬壁面或弹性表面的材料时， 会产生相对应的明显 _反弹， 亦即声波反射， 此种 情形是隔音效果良好， 但显然吸音效果不佳。 反之， 若乒乓球撞击的材料是具 有如布质网绳或泥巴等阻尼很高又无弹性的表面层时， 则乒乓球的撞击能量大 部分会被表面层吸收， 而使反弹力量变得很小。 因此， 声波 (乒乓球)即使尚未 进入材料内部， 但其能量也已在吸音材表面衰减而不会反射， 本发明即以此作 用原理创造出兼具吸音与隔音效果的材料， 而且本发明因可扩增宽度， 所以不 受波长与频率等相关联机制的影响， 不会有低频效果不佳的限制， 可以对较广 泛的频率范围皆产生良好吸隔音作用。
本发明设计一种吸隔音复合材料结构， 由至少一不织布纤维层及至少一聚 乙烯膜所密贴组成； 该不织布纤维层是以不织布制造工法制成的纤维叠积层， 成型厚度在 lmm (含)以上， 该聚乙烯膜的厚度则在 0.009mm~0.1 mm之间； 该聚 乙烯膜表面不利声波空气分子穿过， 而可将空气分子拦截， 因厚度甚薄而使其 弹性变差， 转而发生阻尼的吸收作用， 使声波能量到达聚乙烯膜表面时先作相 当程度的衰减，然后未完全衰减的声波通过聚乙烯膜进入不织布纤维层内部时， 透过纤维弹性振荡及在纤维间孔隙作分子撞击摩擦， 而造成声波机械能更加衰 减， 以达成隔音兼具吸音的功效。
下面将本发明的技术方案， 详述如下：
一种吸隔音复合材料结构， 其特征在于： 由至少一不织布纤维层及至少 一聚乙烯膜所密贴组成； 该不织布纤维层是以不织布制造工法制成的纤维叠 积层， 成型厚度则在 lmm或 lmm以上； 该聚乙烯膜的厚度则在 0.009mm~0.1 mm之间。
其中， 由一不织布纤维层及一聚乙烯膜所密贴组成， 该不织布纤维层是 以不织布制造工法制成的纤维叠积层， 成型厚度则在 lmm或 lmm以上； 该 聚乙烯膜的厚度则在 0.009mm~0.1 mm之间。
其中， 在该不织布纤维层的表面上更平铺密贴一第二聚乙烯膜， 该第二 聚乙烯膜的厚度在 0.009mm~0.1 mm之间。
其中， 在该第二聚乙烯膜的表面上更平铺密贴一第二不织布纤维层， 该 第二不织布纤维层是以不织布制造工法制成的纤雒叠积层， 成型厚度在 lmm 或 lmm以上。
其中， 在该第二不织布纤维层的表面上更平铺密贴一第三聚乙烯膜， 该 第三聚乙烯膜的厚度在 0.009mm〜0.1 mm之间。
其中， 在该第三聚乙烯膜的表面上更平铺密贴一第三不织布纤维层， 该 第三不织布纤维层是以不织布制造工法制成的纤维叠积层，成型厚度在 1mm 或 lmm以上。 其中， 在该第三不织布纤维层的表面上更平铺密贴一第四聚乙烯膜， 该 第四聚乙烯膜的厚度在 0.009mm~0.1 mm之间。 本发明优点及功效在于： 本发明吸隔音复合材料结构， 由再生环保纤维材 料制成的至少一不织布 （Non Woven) 纤维层及至少一聚乙烯膜所密贴组成， 而 能具有极佳的吸隔音效果，尤其对中高频音及中低频音皆具有良好的吸音效果。 附图说明 图 1是本发明第一实施例 「单层单贴型态」 的构造示意图 图 2是本发明第二实施例 「单层双贴型态」 的构造示意图 图 3是本发明第三实施例 「双层单贴型态」 的构造示意图 图 4是本发明第四实施例 「双层双贴型态」 的构造示意图 图 5是本发明第五实施例 「三层单贴型态」 的构造示意图 图 6是本发明第六实施例 「三层双贴型态」 的构造示意图 图中标号说明如下：
10、 11、 12、 13、 14、 15---吸隔音复合材料
20_ 不织布纤维层 21---第二不织布纤维层
22…第三不织布纤维层 30…聚乙烯膜
31一第二聚乙烯膜 32…第三聚乙烯膜
33—第四聚乙烯膜 具体实施方式
请参阅图 1所示， 本发明第一实施例整体是一吸隔音复合材料 10， 构造基 本上是由至少一不织布纤维层 20及至少一聚乙烯膜 30(Polyethylene， PE) 所密 贴组成， 因此图 1即为表达吸隔音复合材料 10由一不织布纤维层 20及一聚乙 烯膜 30所密贴组成的构造示意图， 称之为 「单层单贴型态」。 其中， 该不织布 纤维层 20 是以不织布制造工法制成的纤维叠积层， 可由再生环保纤维材料制 成， 以达环保节能减碳的作用， 但不排除可由任何纤维材料制成； 成型厚度在 lmm (含)以上， 主要作用在于支持出一个 (至少一个)由多数纤维交错攀杂而成， 内部具有多数交错立体空间的纤维叠积层； 该聚乙烯膜 30 的厚度则在 0.009mm~0.1 mm之间。 组合时， 该不织布纤维层 20与该聚乙烯膜 30的面积大 小必须相当， 以利该聚乙烯膜 30平铺密贴于该不织布纤维层 20的表面上， 再 用各种适宜方式将聚乙烯膜 30与不织布纤维层 20二者加以密贴结合， 例如： 可在周边以框架绷紧的支持方式使二者密贴结合， 或者可用淋膜、 烧贴、 胶合 或热融接合等手段使聚乙烯膜 30密贴结合于该不织布纤维层 20的表面上。
装设使用时，是使吸隔音复合材料 10上的聚乙烯膜 30面对声音入射方向， 当传递声波能量的空气分子接触到该聚乙烯膜 30时， 会先被聚乙烯膜 30的面 层阻挡并吸收能量，因此只有未完全衰减部分的能量会通过该聚乙烯膜 30而进 入不织布纤维层 20内部； 然后即在该不织布纤维层 20内部的多数交错立体空 间内， 再经过空气分子多方向反射、 折射等互相冲击， 并激起该不织布纤维层 20的多数纤维作连续性摩擦耗能， 而使声波能量第二次转变为摩擦热能， 造成 声波能量大幅衰竭，而无法再穿出该聚乙烯膜 30，因此而达成高效吸音的效果。 因此可知，使用本发明第一实施例的吸隔音复合材料 10时，可达成高效吸音与 隔音的双重作用功效。
如上所述， 本发明吸隔音复合材料在构造基本上是由至少一不织布纤维层 及至少一聚乙烯膜所密贴组成。 因此本发明第二实施例的吸隔音复合材料 11 如图 2所示， 由一不织布纤维层 20、 一聚乙烯膜 30及一第二聚乙烯膜 31所密 贴组成， 称之为 「单层双贴型态」。 其中， 该不织布纤维层 20是以不织布制造 工法制成之纤维叠积层， 可由再生环保纤维材料制成， 以达环保节能减碳的作 用， 但不排除可由任何纤维材料制成； 成型厚度在 1mm (含)以上， 主要作用在 于支持出一个 (至少一个)由多数纤维交错攀杂而成， 内部具有多数交错立体空 间的纤维叠积层；该聚乙烯膜 30及第二聚乙烯膜 31的厚度则皆在 0.009mm~0.1 mm之间。 组合时， 该不织布纤维层 20与该聚乙烯膜 30及第二聚乙烯膜 31的 面积大小必须相当， 以利该聚乙烯膜 30及第二聚乙烯膜 31分别平铺密贴于该 不织布纤维层 20的表面上， 再用各种适宜方式将该不织布纤维层 20与该聚乙 烯膜 30及与该第二聚乙烯膜 31同时密贴结合， 例如： 可在周边以框架绷紧的 支持方式使三者密贴结合， 或者可用淋膜、 烧贴、 胶合或热融接合等手段使该 聚乙烯膜 30与该第二聚乙烯膜 31分别密贴结合于该不织布纤维层 20的表面 上， 以组成吸隔音复合材料 11。
装设使用时， 该吸隔音复合材料 11上的聚乙烯膜 30及该第二聚乙烯膜 31 皆可面对声音入射方向，当传递声波能量的空气分子接触到该聚乙烯膜 30或该 第二聚乙烯膜 31时，会先被聚乙烯膜 30及该第二聚乙烯膜 31的面层阻挡并吸 收能量，因此只有未完全衰减的部分能量会通过该聚乙烯膜 30及该第二聚乙烯 膜 31而进入不织布纤维层 20内部；而剩余的声波能量在该不织布纤维层 20内 部的多数交错立体空间内， 再经过空气分子多方向反射、 折射等互相冲击， 并 激起该不织布纤维层 20的多数纤维作连续性摩擦耗能，而使声波能量第二次转 变为摩擦热能，造成声波能量大幅衰竭，而无法再穿出该聚乙烯膜 30及该第二 聚乙烯膜 31， 因此达成高效吸音的效果。 因此可知， 使用本发明第二实施例的 吸隔音复合材料 10时，除可达成与第一实施例相同的高效吸音与隔音的双重作 用功效外， 更具备二侧皆可使用的优异作用功效。
请参阅图 3所示，本发明第三实施例的吸隔音复合材料 12是由一聚乙烯膜 30、 一不织布纤维层 20、 一第二聚乙烯膜 31及一第二不织布纤维层 21所密贴 组成， 称之为 「双层单贴型态」。 其中， 该不织布纤维层 20及该第二不织布纤 维层 21皆是以不织布制造工法制成的纤维叠积层，成型厚度皆在 1mm (含)以上， 用于支持出至少一个 (本实施例为二个） 由多数纤维交错攀杂而成， 内部具有多 数交错立体空间的纤维叠积层； 该聚乙烯膜 30及第二聚乙烯膜 31的厚度则皆 在 0.009mm~0.1 mm之间。 组合时， 该不织布纤维层 20及该第二不织布纤维层 21与该聚乙烯膜 30及第二聚乙烯膜 31的面积大小必须相当， 以利该聚乙烯膜 30及第二聚乙烯膜 31分别平铺密贴结合于该不织布纤维层 20的表面上， 然后 该第二不织布纤维层 21再平铺密贴结合于第二聚乙烯膜 31的另侧表面上， 同 样再用各种适宜方式将该聚乙烯膜 30、 不织布纤维层 20、 第二聚乙烯膜 31及 第二不织布纤维层 21四者加以结合，例如：可在周边以框架绷紧的支持方式使 四者密贴结合， 或者可用淋膜、 烧贴、 胶合或热融接合等手段使该聚乙烯膜 30 与该第二聚乙烯膜 31分别密贴结合于该不织布纤维层 20及该第二不织布纤维 层 21的表面上。 由比较图 2和 3可知， 本发明第三实施例的吸隔音复合材料 12是在第二实施例的构造组成上更增加一第二不织布纤维层 21。 装设使用时， 亦是由其聚乙烯膜 30面对声音入射方向为宜，如此即与第一实施例同样具有高 效吸音与隔音的使用效果。然后倘有些声波因能量较大未及为不织布纤维层 20 所吸收而穿出时, 即会通过该第二聚乙烯膜 31 而又进入该第二不织布纤维层 21内部， 然后即会在该第二不织布纤维层 21内部受到第二重的吸隔音作用。
本发明吸隔音复合材料在构造上由至少一不织布纤维层及至少一聚乙烯膜 所密贴组成的基本架构下， 将第三实施例再加上一第三聚乙烯膜 32， 使密贴结 合于该第二不织布纤维层 21的外表面上，则即形成图 4所示第四实施例吸隔音 复合材料 13的构成， 称之为 「双层双贴型态」。 装设使用时， 如同第二实施例 所述般，该吸隔音复合材料 13上的聚乙烯膜 30及该第三聚乙烯膜 32皆可面对 声音入射方向， 使声波进入该不织布纤维层 20或该第二不织布纤维层 21内， 以达成高效吸隔音的作用功效。 而倘有些声波因能量较大未及为首先进入的不 织布纤维层 20或第二不织布纤维层 21所吸收而穿出时， 皆会通过该第二聚乙 烯膜 31而进入该第二不织布纤维层 21或不织布纤维层 20后即受到第二重的吸 隔音作用。
在合于上述诸实施例相同的发明理念下， 将第四实施例再加上一第三不织 布纤维层 22， 使密贴结合于该第三聚乙烯膜 32的外表面上， 则即形成图 5所 示第五实施例的吸隔音复合材料 14构成， 称之为 「三层单贴型态」。 因此未及 为该第二不织布纤维层 21所吸收的音波穿透该第三聚乙烯膜 32后即会进入该 第三不织布纤维层 22内， 以受到第三重的吸隔音作用。而将第五实施例再加上 一第四聚乙烯膜 33， 使密贴结合于该第三不织布纤维层 22的外表面上， 则即 形成图 6所示第六实施例的吸隔音复合材料 15， 称之为 「三层双贴型态」， 其 是可对声波进行连续三重的吸隔音作用， 以转换声波于无形。
由以上说明可知， 本发明吸隔音复合材料基本架构是由至少一不织布纤维 层及至少一聚乙烯膜所密贴组成， 其中， 不织布纤维层是以不织布制造工法制 成的纤维叠积层， 成型厚度则在 1mm (含）以上， 聚乙烯膜的厚度则在 0.009mm~0.1 mm之间。因此本发明可以有由一不织布纤维层及一聚乙烯膜所密 贴组成的 「单层单贴型态」 基本型态， 然后也可以有由该基本型态再加上一聚 乙烯膜于不织布纤维层另侧的 「单层双贴型态」 变化型态。 然后更可以由增加 不织布纤维层及聚乙烯膜的数量，而产生出「双层单贴型态」、「双层双贴型态」、 「三层单贴型态」 及 「三层双贴型态」 等更多的变化型态。 至于要装设哪一种 型态的吸隔音复合材料， 端视吸隔音处理环境及音量大小而定。 本发明吸隔音 复合材料组成进行试验， 证实效果良好， 方据以提出该案申请， 谨将测试报告 复印件附呈， 请一并参考。

Claims

权 利 要 求 书
1.一种吸隔音复合材料结构， 其特征在于： 由至少一不织布纤维层及至少一 聚乙烯膜所密贴组成； 该不织布纤维层是以不织布制造工法制成的纤维叠积 层，成型厚度则在 1mm或 1mm以上；该聚乙烯膜的厚度则在 0.009mm~0.1 mm 之间。 ·
2.根据权利要求 1 所述的吸隔音复合材料结构， 其特征在于： 由一不织布纤 维层及一聚乙烯膜所密贴组成， 该不织布纤维层是以不织布制造工法制成的 纤维叠积层， 成型厚度则在 1mm 或 1mm 以上； 该聚乙烯膜的厚度则在 0.009mm~0.1 mm之间。
3. 根据权利要求 2所述的吸隔音复合材料结构， 其特征在于： 在该不织布纤 维层的表面上更平铺密贴一第二聚乙烯膜， 该第二聚乙烯膜的厚度在 0.009mm~0.1 mm之间。
4. 根据权利要求 3所述的吸隔音复合材料结构， 其特征在于： 在该第二聚乙 烯膜的表面上更平铺密贴一第二不织布纤维层，该第二不织布纤维层是以不 织布制造工法制成的纤维叠积层， 成型厚度在 nm或 lmm以上。
5. 根据权利要求 4所述的吸隔音复合材料结构， 其特征在于： 在该第二不织 布纤维层的表面上更平铺密贴一第三聚乙烯膜， 该第三聚乙烯膜的厚度在 0.009醒~0.1 匪之间。
6. 根据权利要求 5所述的吸隔音复合材料结构，其特征在于：在该第三聚乙 烯膜的表面上更平铺密贴一第三不织布纤维层，该第三不织布纤维层是以不 织布制造工法制成的纤维叠积层， 成型厚度在 1mm或 1mm以上。
7. 根据权利要求 6所述的吸隔音复合材料结构，其特征在于：在该第三不织 布纤维层的表面上更平铺密贴一第四聚乙烯膜， 该第四聚乙烯膜的厚度在 0.009mm~0.1 mm之间。
PCT/CN2011/000481 2011-03-22 2011-03-22 吸隔音复合材料结构 WO2012126141A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2014500220A JP2014514603A (ja) 2011-03-22 2011-03-22 吸音防音複合材料
PCT/CN2011/000481 WO2012126141A1 (zh) 2011-03-22 2011-03-22 吸隔音复合材料结构
US14/006,134 US20140008145A1 (en) 2011-03-22 2011-03-22 Sound absorbing and insulation composition material composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/000481 WO2012126141A1 (zh) 2011-03-22 2011-03-22 吸隔音复合材料结构

Publications (1)

Publication Number Publication Date
WO2012126141A1 true WO2012126141A1 (zh) 2012-09-27

Family

ID=46878595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/000481 WO2012126141A1 (zh) 2011-03-22 2011-03-22 吸隔音复合材料结构

Country Status (3)

Country Link
US (1) US20140008145A1 (zh)
JP (1) JP2014514603A (zh)
WO (1) WO2012126141A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014142479A (ja) * 2013-01-24 2014-08-07 Daiwa House Industry Co Ltd 吸音体

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8292027B2 (en) 2009-04-21 2012-10-23 E I Du Pont De Nemours And Company Composite laminate for a thermal and acoustic insulation blanket
US8607928B2 (en) * 2009-04-21 2013-12-17 E I Du Pont De Nemours And Company Composite flame barrier laminate for a thermal and acoustic insulation blanket
WO2020107365A1 (en) * 2018-11-30 2020-06-04 Henkel Ag & Co. Kgaa Noise source and method of noise reduction for noise source
GB2592581A (en) 2020-02-27 2021-09-08 Autins Ltd Sound reduction enclosure and method of making a sound reduction enclosure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1191456A (ja) * 1997-09-18 1999-04-06 Mitsubishi Motors Corp 車両用内装材
CN1205024C (zh) * 2000-11-10 2005-06-08 名古屋油化株式会社 内装材料
CN1993731A (zh) * 2004-08-04 2007-07-04 东洋纺织株式会社 吸声绝热材
CN100485121C (zh) * 2007-04-24 2009-05-06 江苏中联地毯有限公司 复合粘合可成型汽车地毯及其制造方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6251493B1 (en) * 1996-04-08 2001-06-26 3M Innovative Properties Company Vibration and shock attenuating articles and method of attenuating vibrations and shocks therewith
US6291370B1 (en) * 1999-09-01 2001-09-18 Harodite Industries, Inc. Chopped fiberglass laminate for automotive headliners and method of fabrication
EP1612768B1 (en) * 2003-03-26 2012-10-10 Takehiro Co., Ltd. Ultralight soundproof material
US7083147B2 (en) * 2004-03-11 2006-08-01 The Boeing Company Modularized insulation, systems, apparatus, and methods
TWM259706U (en) * 2004-07-21 2005-03-21 San Shiang Technology Co Ltd Sound-absorptive composite material
US7279059B2 (en) * 2004-12-28 2007-10-09 Owens Corning Intellectual Capital, Llc Polymer/WUCS mat for use in automotive applications
US20060289231A1 (en) * 2005-06-28 2006-12-28 Priebe Joseph A Acoustic absorber/barrier composite
US20070009688A1 (en) * 2005-07-11 2007-01-11 Enamul Haque Glass/polymer reinforcement backing for siding and compression packaging of siding backed with glass/polymer
WO2007047263A1 (en) * 2005-10-19 2007-04-26 3M Innovative Properties Company Multilayer articles having acoustical absorbance properties and methods of making and using the same
US20080045101A1 (en) * 2006-08-18 2008-02-21 Near Shannon D Decorative dual scrim composite panel
US8186387B2 (en) * 2007-05-22 2012-05-29 Innovative Energy, Inc. Duct insulation material and method of using
JP2011521130A (ja) * 2008-05-23 2011-07-21 イーマンエイト ピーティワィ リミテッド 吸音材料及び吸音材料の製造方法
US8230969B2 (en) * 2010-05-18 2012-07-31 Precision Fabrics Group, Inc. Acoustic panels, apparatus and assemblies with airflow-resistive layers attached to sound incident surfaces
US8276708B1 (en) * 2011-03-15 2012-10-02 Toyota Motor Engineering & Manufacturing North America, Inc. Headliners and vehicles with improved speech transmission characteristics
US8322487B1 (en) * 2011-08-19 2012-12-04 Milliken & Company Acoustically coupled non-woven composite
US8496088B2 (en) * 2011-11-09 2013-07-30 Milliken & Company Acoustic composite
US20130115837A1 (en) * 2011-11-09 2013-05-09 Dale S. Kitchen Nanofiber nonwovens and nanofiber nonwoven composites containing roped fiber bundles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1191456A (ja) * 1997-09-18 1999-04-06 Mitsubishi Motors Corp 車両用内装材
CN1205024C (zh) * 2000-11-10 2005-06-08 名古屋油化株式会社 内装材料
CN1993731A (zh) * 2004-08-04 2007-07-04 东洋纺织株式会社 吸声绝热材
CN100485121C (zh) * 2007-04-24 2009-05-06 江苏中联地毯有限公司 复合粘合可成型汽车地毯及其制造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014142479A (ja) * 2013-01-24 2014-08-07 Daiwa House Industry Co Ltd 吸音体

Also Published As

Publication number Publication date
US20140008145A1 (en) 2014-01-09
JP2014514603A (ja) 2014-06-19

Similar Documents

Publication Publication Date Title
KR20080004481A (ko) 층이 있는 흡음 부직포
CN102968985B (zh) 复合多层机械阻抗板的薄型宽频吸声结构
CN103700366B (zh) 复合共振腔的机械阻抗与微穿孔板结合的宽频吸声结构
WO2012126141A1 (zh) 吸隔音复合材料结构
JP4975744B2 (ja) 透光型穴開積層吸音板および透光型吸音パネル
CN106639015B (zh) 一种复合降噪消音板
CN211080662U (zh) 一种吸音墙板
CN102689477B (zh) 吸隔音复合材料结构
CN204471969U (zh) 一种吸音棉
CN103510342A (zh) 洗衣机
TWI500509B (zh) Absorbing sound insulation composite material composition
TWI755432B (zh) 隔音構造體、以及隔音構造體的製造方法
JP3114718U (ja) 吸音複合材料
JP2001316961A (ja) 吸音構造体
TW200920902A (en) A sound absorptive board with geometric cavities
CN106827694B (zh) 隔声材料及其应用
CN2756440Y (zh) 吸音复合材料的构造
CN105575379A (zh) 消声室以及用于其的消声器
TW201333310A (zh) 吸隔音複合材料之組成結構
JPH03199571A (ja) 遮音床材
CN103252958A (zh) 吸隔音复合材料之组成结构
CN209488750U (zh) 一种音箱用吸声体
CN114645592A (zh) 一种吸音墙板
CN202417878U (zh) 空调压缩机隔音棉和空调
CN208251351U (zh) 一种消音墙板

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11861725

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2014500220

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 14006134

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 1301005181

Country of ref document: TH

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11861725

Country of ref document: EP

Kind code of ref document: A1