TW201333310A - Composition structure of sound absorbing/isolating composite material - Google Patents
Composition structure of sound absorbing/isolating composite material Download PDFInfo
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本發明係關於一種吸隔音複合材料之組成結構，尤指一種由至少一層纖維不織布層及至少一層封閉型發泡層所密貼組成之吸隔音複合材料，具有重量輕與極佳之吸隔音效果。
The invention relates to a component structure of a sound-absorbing and sound-insulating composite material, in particular to a sound-absorbing and sound-insulating composite material which is composed of at least one layer of fiber non-woven fabric layer and at least one layer of closed foam layer, which has light weight and excellent sound absorption and sound insulation effect. .
按，在一般日常生活環境中，會有許多必須運用到良好吸音及/或隔音效果之處。最常見的就是，高級轎車內為求乘坐舒適及良好之音響效果，因此必須利用到具有良好吸音及隔音效果之材料，以隔絕及吸收外來的中高頻吵雜聲音，以及車輛行駛時本身所產生的中低頻噪音與共振。若吸音及隔音效果不佳，即難以表現出高級轎車的價值感，因此吸音及隔音材料用於汽車內裝時所可達致吸音及隔音功效之優劣，明顯極為重要。另常見的是，目前住家皆比鄰而居，故在一般居家環境中，也常會有必須加強吸音及隔音效果之處。例如自家若設有KTV音響者，則必須加強音響室之吸音及隔音效果，以使歡唱娛樂效果彰顯，並免擾及鄰居而損及情誼。又如住家為阻隔外界噪音或雜音(例如：道路汽車行駛的聲音、警報突響的尖銳聲音、鄰居小孩的哭鬧聲、或鄰居冷氣機的運轉聲，甚或鄰居歡唱KTV的吵雜聲等)，所以在建材或門窗縫隙阻隔上也會選擇性採用吸音及/或隔音材料來設置，在在均顯示目前對於吸音及隔音效果之重視。
「吸音」與「隔音」之定義有所不同，「吸音」重在將聲音吸收並加以減弱直至消失，其原理係使吸音材料接受入射音聲波進入，則音波能量會促使吸音材料內之彈性纖維振盪、或使材料孔穴內空氣分子互相撞擊摩擦，而造成機械能衰減，並將音波振動能量轉變為熱能，使得音波振幅變小，音量自然也就變小。而「隔音」則重在將聲音反射或折射使之隔絕於接收端之外，達到遁逸之作用。故「吸音」與「隔音」二者在作用原理及使用功效上係有所不同，一般為增進吸音效果，應該使入射聲波容易射入吸音材料內部，以便在吸音材料內部衰減；而為增進隔音效果，則應該減少入射聲波進入吸音材料使其受到阻絕。上述二種機制經常互相矛盾，因此同一材料常難以兼顧「吸音」與「隔音」效果，而必須藉由多層方式搭配應用，方可展現較佳之吸隔音效果。
一般而言，日常生活中所接觸到聲音概可分成高頻、中頻及低頻三種。其中，中高頻音為頻率高振幅小者，聲響相對較為刺耳，令人一聽即難以忍受，故如何快速吸收中高頻音，即為吸音材料首要之務。而習知林林總總的吸音料料中，有些偏重於對高頻音能有良好的吸收能力，但卻不利於吸收中頻音且吸音能力不持久，反之有些吸音材料重在吸收中頻音，但對高頻音就顯為吸收無方。故尚難覓得一種材料或複合材料足以對中高頻音皆有良好吸音效果者。因聲波之波長與頻率成反比，理論上吸音材料厚度要達到聲波波長(振幅)的四分之ㄧ以上方能達到完全的吸音效果。而中低頻噪音之波長較長，若材料厚度相對於波長的比例很小，則中低頻噪音之聲波能量將直接跨過材料，而不易在吸音材料內部產生衰減。因此，對於中低頻聲波的吸收，不能只期望依賴聲波射入吸音材料內部的衰減機制來達成，如此往往事倍功半。
市面上之吸隔音材料很多，難以一一列舉。一種習知車輛用隔音材料(台灣發明I355339專利)，具有一包含二聲音吸收層及一被插入在該二聲音吸收層之間的中間層之疊層構造，其特徵在於該中間層係經由使用多層充氣方式將一具有低於不透氣薄膜之熔點的由熱塑性樹脂薄膜製成之具有自7μ至50μ厚度的熱熔薄膜黏合及疊層在一具有自7μ至50μ厚度的由熱塑性樹脂薄膜製成之該不透氣薄膜的二側上所形成，其中該二聲音吸收層之一具有自0.5㎜至15㎜的厚度及自100g/㎡至2000 g/㎡之重量，且另一具有自5㎜至40㎜的厚度及自500g/㎡至3000 g/㎡之重量。該案主要係創新該中間層之組成結構為習知所無，而能獲准專利。
在朝著同樣提供良好吸隔音效果之前提下，本發明人同樣努力從事研發創作。本發明人係專業從事各種纖維不織布(有稱無紡布)材料之研究及開發製造工作，對於各種纖維不織布之製造工法皆有實際從事製造之深厚經驗，故瞭解纖維不織布的使用用途頗為廣泛，也深知一直有人嘗試從纖維不織布的材料配方及製造工法中尋得良好效果的吸隔音材料，但未有令人十分滿意的結果出現。因此如何發明出一種可利用環保回收再生纖維材料來製造良好吸隔音效果之複合材料，即為本發明人努力從事產業研究及發展的目標。
According to the general daily life environment, there are many places where good sound absorption and/or sound insulation must be applied. The most common is that in the limousine, for the comfort and sound of the ride, it is necessary to use materials with good sound absorption and sound insulation to isolate and absorb the external high-frequency noise, as well as the vehicle itself. Medium and low frequency noise and resonance. If the sound absorption and sound insulation effects are not good, it is difficult to express the sense of value of the premium sedan. Therefore, the sound absorption and sound insulation materials used in the interior of the automobile can be very important. It is also common for homes to live next door, so in a general home environment, there are often places where sound absorption and sound insulation must be enhanced. For example, if you have a KTV sound system at home, you must enhance the sound absorption and sound insulation effects of the sound room to make the entertainment effect of the singing and singing, and to avoid the neighbors and damage the friendship. Another example is to block outside noise or noise (for example: the sound of a road car, the sharp sound of an alarm, the crying of a neighbor's child, or the sound of a neighbor's air conditioner, or even the neighbors singing KTV's noise, etc. Therefore, in the building material or door and window gap barriers, the sound absorbing and/or soundproofing materials are also selectively used, and the current attention is paid to the sound absorbing and sound insulating effects.
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 promote the elastic fiber in the sound absorbing material. Oscillating, or causing air molecules in the material cavity to collide with each other, causing mechanical energy to attenuate, and converting the acoustic vibration energy into heat energy, so that the amplitude of the sound wave becomes smaller, and the volume naturally becomes smaller. The "sound insulation" is focused on reflecting or refracting the sound to isolate it from the receiving end. Therefore, both "sound absorption" and "sound insulation" are different in terms of function and use efficiency. Generally, the sound absorption effect should be improved, and the incident sound wave should be easily injected into the sound absorbing material to be attenuated inside 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 balance the "sound absorption" and "sound insulation" effects of the same material, and it is necessary to use a multi-layered application to exhibit better sound absorption.
Generally speaking, the sounds touched in daily life can be divided into three types: high frequency, medium frequency and low frequency. Among them, the middle and high frequency sounds are those with high frequency and small amplitude, and the sound is relatively harsh. It is unbearable to hear, so how to quickly absorb medium and high frequency sounds is the primary task of sound absorbing materials. However, some of the sound absorption materials of the general knowledge are biased to have a good absorption capacity for high-frequency sound energy, but it is not conducive to absorbing mid-range sound and the sound-absorbing ability is not durable. On the contrary, some sound-absorbing materials are heavy in absorbing mid-range sound, but The high-frequency sound is obviously 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. Since the wavelength of the sound wave is inversely proportional to the frequency, the thickness of the sound absorbing material is theoretically up to four quarters 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, the absorption of the medium and low frequency sound waves cannot be achieved only by relying on the attenuation mechanism that the sound waves are injected into the sound absorbing material, which is often half the effort.
There are many sound-absorbing materials on the market, so it is difficult to enumerate them one by one. A conventional sound insulating material for a vehicle (Taiwan Invention No. I355339) having a laminated structure comprising two sound absorbing layers and an intermediate layer interposed between the two sound absorbing layers, characterized in that the intermediate layer is used The multi-layer inflation method comprises bonding and laminating a hot-melt film having a thickness of from 7 μ to 50 μ made of a thermoplastic resin film having a melting point lower than that of the gas-impermeable film, and being formed of a thermoplastic resin film having a thickness of from 7 μ to 50 μ. Formed on both sides of the gas impermeable film, wherein one of the two sound absorbing layers has a thickness from 0.5 mm to 15 mm and a weight from 100 g/m 2 to 2000 g/m 2 , and the other has a thickness from 5 mm to 40mm thickness and weight from 500g/m2 to 3000g/m2. The case is mainly to innovate the structure of the middle layer as a matter of knowing and to obtain patents.
The present inventors also worked hard to develop and create before making the same sound absorption effect. The inventor specializes in the research, development and manufacturing of various fiber non-woven fabrics (called non-woven fabrics). For the manufacturing methods of various fiber non-woven fabrics, there is a deep experience in manufacturing, so it is widely used to understand the use of fiber non-woven fabrics. It is also known that there have been attempts to obtain sound-absorbing materials with good effects from the material formulation and manufacturing methods of fiber non-woven fabrics, but there have been no satisfactory results. Therefore, how to invent a composite material which can utilize the environmentally-friendly recycled fiber material to produce a good sound-absorbing effect is the goal of the inventor's efforts in industrial research and development.
緣是，本發明之主要目的即在提供一種吸隔音效果良好的吸隔音複合材料之組成結構，可對中高頻音及中低頻音皆具有良好的吸音效果。
本發明之另一目的則在提供一種可在外側面上藉由密貼熱塑性塑膠薄膜及/或藉由增加層數，而能增進吸隔音效果之吸隔音複合材料之組成結構。
本發明之創作重點在於以創新思維將隔音與吸音的物理機制做有效結合，其於吸音材料表面創造一高阻尼特性之表面層，使聲波尚未進入吸音材料前即已在材料表面層上產生若干有效的能量衰減，以使進入吸音材料內部之聲波更容易在吸音材料內產生能量衰減作用。為方便說明本發明之作用原理，茲先以假設他物為例作說明，如此較為容易瞭解。假設聲波傳遞分子為一乒乓球，則當乒乓球撞擊表面層為堅硬壁面或彈性表面之材料時，會產生相對應的明顯反彈，亦即聲波反射，此種情形係隔音效果良好，但顯然吸音效果不佳。反之，若乒乓球撞擊的材料係具有如布質網繩或泥巴等阻尼很高又無彈性的表面層時，則乒乓球的撞擊能量大部分會被表面層吸收，而使反彈力量變得很小。因此，聲波(乒乓球)即使尚未進入材料內部，但其能量也已在吸音材表面衰減而不會反射，本發明即以此作用原理創造出兼具吸音與隔音效果的材料，而且本發明因可擴增寬度，所以不受波長與頻率相關聯機制之影響，而不會有低頻效果不佳的限制，可以對較廣泛的頻率範圍皆產生良好吸隔音作用。
為達致上述目的，本發明即設計一種吸隔音複合材料之組成結構，係由至少一層纖維不織布層及至少一層封閉型發泡層所密貼組成；該纖維不織布層係以纖維材料採不織布製造工法製成之纖維疊積層，成型厚度在0.5mm(含)以上，重量在50 g/㎡至3000 g/㎡間；該封閉型發泡層為內具多數獨立式閉氣孔之封閉型發泡體，成型厚度在1mm(含)以上。
上述吸隔音複合材料之組成結構中，該纖維不織布層之外側面上更可密貼一層熱塑性塑膠薄膜，使完全密貼於該纖維不織布層之外側面上，以增加吸音效果；該熱塑性塑膠薄膜之厚度在0.009mm~0.1 mm間。
上述吸隔音複合材料之組成結構中，該封閉型發泡層之面層上更可密貼一層熱塑性塑膠薄膜，以增加隔音效果；該熱塑性塑膠薄膜之厚度在0.009mm~0.1 mm間。
The main purpose of the present invention is to provide a structure of a sound-absorbing and sound-insulating composite material with good sound-absorbing and sound-absorbing effects, which can have a good sound-absorbing effect on both medium and high frequency sounds and medium and low frequency sounds.
Another object of the present invention is to provide a structure of a sound-absorbing and sound-insulating composite material which can improve the sound-absorbing effect by adhering a thermoplastic plastic film on the outer side surface and/or by increasing the number of layers.
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 generated some on the surface layer of the material before it has entered the sound absorbing material. Effective energy attenuation is such that sound waves entering the interior of the sound absorbing material are more susceptible to energy attenuation within the sound absorbing material. In order to facilitate the explanation of the principle of action of the present invention, it is easier to understand by taking a hypothetical object as an example. Assuming that the sound wave transmitting molecule is a table tennis ball, when the table tennis ball hits the surface layer as a hard wall or an elastic surface material, a corresponding significant rebound, that is, sound wave reflection, is generated, and the sound insulation effect is good, but the sound absorption is apparent. not effectively. On the other hand, if the material hit by the table tennis has a highly damped and inelastic surface layer such as a cloth net rope or mud, most of the impact energy of the table tennis will be absorbed by the surface layer, and the rebound force becomes very strong. small. Therefore, even if the sound wave (table tennis) has not entered the inside of the material, its energy has been attenuated on the surface of the sound absorbing material without being reflected, and the present invention creates a material having both sound absorbing and sound insulating effects by the principle of action, and the present invention The amplifiable width is not affected by the wavelength-frequency correlation mechanism, and there is no limitation of low frequency effects, which can produce good sound absorption for a wide range of frequencies.
In order to achieve the above object, the present invention is to design a structure of a sound-absorbing composite material, which is composed of at least one fiber non-woven layer and at least one closed foam layer; the fiber non-woven layer is made of fiber material and non-woven fabric. The fiber laminated layer made by the method has a forming thickness of 0.5 mm or more and a weight of 50 g/m2 to 3000 g/m2; the closed foaming layer is a closed foaming machine with a plurality of independent closed pores. The body has a molding thickness of 1 mm or more.
In the composition of the above-mentioned sound-absorbing composite material, a thermoplastic plastic film can be closely adhered to the outer surface of the fiber non-woven fabric layer so as to be completely adhered to the outer surface of the fiber non-woven fabric layer to increase the sound absorbing effect; the thermoplastic plastic film The thickness is between 0.009 mm and 0.1 mm.
In the composition of the above-mentioned sound-absorbing composite material, the surface layer of the closed foam layer can be further adhered with a thermoplastic plastic film to increase the sound insulation effect; the thickness of the thermoplastic plastic film is between 0.009 mm and 0.1 mm.
關於本發明為達致上述目的所採用之技術手段及構造組成，茲舉以下數種較佳可行實施例並配合附圖詳述於后，俾利完全瞭解本發明之特徵所在及功效優點。
請參閱第一圖所示，本發明第一實施例係一吸隔音複合材料10，組成結構上由一層纖維不織布層20及一層封閉型發泡層30所密貼組成，其中，該纖維不織布層20可為以任何纖維材料採不織布製造工法製成之纖維疊積層，尤可以環保回收再生纖維材料採不織布製造工法製成，以達環保節能減碳之作用；該纖維不織布層20之成型厚度在0.5mm(含)以上，重量在50 g/㎡至3000 g/㎡間，主要作用在於支持出一個由多數纖維交錯攀雜而成，內部具有多數交錯立體空間之纖維疊積層；該封閉型發泡層30為內具多數獨立式閉氣孔之封閉型發泡體，成型厚度在1mm(含)以上，可係由多種材料成分經過發泡程序而成之封閉型發泡體，例如：可係聚丙烯（PP）封閉型發泡體、聚乙烯（PE）封閉型發泡體、聚氨基甲酸酯（PU）封閉型發泡體、聚苯乙烯（PS）封閉型發泡體、聚氯乙烯（PVC）封閉型發泡體、乙烯／醋酸乙烯酯共聚物（EVA）封閉型發泡體、尼龍（Nylon）封閉型發泡體等---等。組合時，該纖維不織布層20與該封閉型發泡層30之面積大小必須相當，以利該封閉型發泡層30平舖密貼於該纖維不織布層20之表面上，再採各種適宜方式將封閉型發泡層30與纖維不織布層20二者加以密貼結合，例如：可採在周邊以框架繃緊之支持方式使二者密貼結合，或者可採淋膜、燒貼、膠合或熱融接合，或者更可經過熱壓成型為板材等手段使該封閉型發泡層30與該纖維不織布層20密貼結合成一體性複合材料。
裝設使用時，可選擇由本實施例吸隔音複合材料10之封閉型發泡層30面對聲音入射方向，或者由纖維不織布層20面對聲音入射方向，其吸隔音效果係會有所不同，分別如下：
一、將吸隔音複合材料10之封閉型發泡層30面對聲音入射方向時，因該封閉型發泡層30成型有緊密且細緻之封閉面層，且內部又成型有多數連續性之獨立式閉氣孔，因此該封閉型發泡層30可對入射音波做阻擋及緩衝，當傳遞聲波能量的空氣分子接觸到該封閉型發泡層30時，會先被該封閉型發泡層30的面層阻擋(具有隔音效果)並吸收能量，造成聲波能量第一次衰減，只有未完全衰減部分的能量會通過該封閉型發泡層30而進入纖維不織布層20內部；然後即在該纖維不織布層20內部之多數交錯立體空間內，再經過空氣分子多方向反射、折射等互相衝擊，並與該纖維不織布層20之多數纖維作連續性摩擦耗能而轉變為摩擦熱能，使得聲波能量第二次衰減(與入射時相較已大幅衰減)，而無法再穿出該封閉型發泡層30，因此而達成先隔音再吸音之功效。
二、將吸隔音複合材料10之纖維不織布層20面對聲音入射方向時，傳遞聲波能量的空氣分子直接即進入該纖維不織布層20內，並即在該纖維不織布層20內部之多數交錯立體空間內產生多方向反射、折射等互相衝擊之耗能作用，同時並與該纖維不織布層20之多數纖維作連續性摩擦耗能，使聲波能量大幅轉變為摩擦熱能而趨於消失(產生吸音作用)；未完全衰減之聲波能量通過該纖維不織布層20而撞及該封閉型發泡層30時，因其能量已大幅衰竭，故無法穿出該封閉型發泡層30，因此而達成先吸音再隔音之功效。
因此可知，使用本發明第一實施例之吸隔音複合材料10時，可達成高效吸音與隔音之雙重作用功效。
因本發明吸隔音複合材料之基本組成結構係由至少一層纖維不織布層及至少一層封閉型發泡層所密貼組成，因此本發明更可在上述基本組成結構上增加層數，以使吸隔音效果更佳。接著，請參閱第二圖所示，本發明第二實施例之吸隔音複合材料11係由二層纖維不織布層20及一層密接於該等纖維不織布層20間之封閉型發泡層30所密貼組成，其中，該等纖維不織布層20皆可為以任何纖維材料採不織布製造工法製成之纖維疊積層，尤可以環保回收再生纖維材料採不織布製造工法製成，以達環保節能減碳之作用；各纖維不織布層20之成型厚度在0.5mm(含)以上，重量在50 g/㎡至3000 g/㎡間，主要作用在於支持出一個由多數纖維交錯攀雜而成，內部具有多數交錯立體空間之纖維疊積層；該封閉型發泡層30為內具多數獨立式閉氣孔之封閉型發泡體，成型厚度在1mm(含)以上，可係由多種材料成分經過發泡程序而成之封閉型發泡體，例如：可係聚丙烯（PP）封閉型發泡體、聚乙烯（PE）封閉型發泡體、聚氨基甲酸酯（PU）封閉型發泡體、聚苯乙烯（PS）封閉型發泡體、聚氯乙烯（PVC）封閉型發泡體、乙烯／醋酸乙烯酯共聚物（EVA）封閉型發泡體、尼龍（Nylon）封閉型發泡體等---等。組合時，該等纖維不織布層20與該封閉型發泡層30之面積大小必須相當，以利該等纖維不織布層20平舖密貼於該封閉型發泡層30之表面上，再採各種適宜方式將二層纖維不織布層20與中間之封閉型發泡層30三者加以密貼結合，例如：可採在周邊以框架繃緊之支持方式使之密貼結合，或者可採淋膜、燒貼、膠合或熱融接合，或者更可經過熱壓成型為板材等手段使之密貼結合成為一體性之複合材料。
由比較第一、二圖可知，本發明第二實施例之吸隔音複合材料11係在第一實施例之組成結構上更增加一層纖維不織布層20，使密貼於該封閉型發泡層30之外側。因此裝設使用時，可由任一側之纖維不織布層20面對聲音入射方向，使入射音波先經過一層纖維不織布層20之第一次吸音衰減，再經過該封閉型發泡層30之隔音衰減，最後再經過另一層纖維不織布層20之第二次吸音衰減，而能具有更為有效之吸音與隔音效果。
接著，請參閱第三圖所示，本發明第三實施例之吸隔音複合材料12係由一層纖維不織布層20及二層分別密接於該等纖維不織布層20二外側面上之封閉型發泡層30所密貼組成，其中，該等纖維不織布層20皆可為以任何纖維材料採不織布製造工法製成之纖維疊積層，尤以環保回收再生纖維材料採不織布製造工法製成為佳，以達環保節能減碳之作用；各纖維不織布層20之成型厚度在0.5mm(含)以上，重量在50 g/㎡至3000 g/㎡間，主要作用在於支持出一個由多數纖維交錯攀雜而成，內部具有多數交錯立體空間之纖維疊積層；該封閉型發泡層30為內具多數獨立式閉氣孔之封閉型發泡體，成型厚度在1mm(含)以上，可係由多種材料成分經過發泡程序而成之封閉型發泡體(前述已舉例)。組合時，該等封閉型發泡層30與該纖維不織布層20之面積大小必須相當，以利該等封閉型發泡層30平舖密貼於該纖維不織布層20之二側表面上，再採各種適宜方式將二層封閉型發泡層30與中間之纖維不織布層20三者加以密貼結合，例如：可採在周邊以框架繃緊之支持方式使之密貼結合，或者可採淋膜、燒貼、膠合或熱融接合，或者更可經過熱壓成型為板材等手段使之密貼結合成為一體性之複合材料。
由比較第一、三圖可知，本發明第三實施例之吸隔音複合材料12係在第一實施例之組成結構上更增加一層封閉型發泡層30，使密貼於該纖維不織布層20之外側。因此裝設使用時，可由任一側之封閉型發泡層30面對聲音入射方向，使入射音波先經過一層封閉型發泡層30之第一次隔音及衰減，再經過該纖維不織布層20之吸音衰減，最後再經過另一層封閉型發泡層30之隔音衰減，使聲音盡量收容於整體吸隔音複合材料12內趨於衰竭消失，而能具有更為有效之吸音與隔音效果。
在本發明吸隔音複合材料之基本組成結構係由至少一層纖維不織布層及至少一層封閉型發泡層所密貼組成之基本組成結構下，本發明亦可在第三實施例之結構上，更於其中一層封閉型發泡層30之外側更密貼接合一層纖維不織布層20，使形成為如第四圖所示第四實施例之吸隔音複合料13；由比較第一、四圖可以看出，吸隔音複合料13係由二組的吸隔音複合材料10所密貼組成，所以整體係由一層封閉型發泡層30貼合一層纖維不織布層20，接著更連續貼合一層封閉型發泡層30及一層纖維不織布層20，而形成為由四個物件連續密貼結合之一體性複合材料；其中，該等纖維不織布層20皆可為以任何纖維材料採不織布製造工法製成之纖維疊積層，尤以環保回收再生纖維材料採不織布製造工法製成為佳，以達環保節能減碳之作用；各纖維不織布層20之成型厚度在0.5mm(含)以上，重量在50 g/㎡至3000 g/㎡間，主要作用在於支持出一個由多數纖維交錯攀雜而成，內部具有多數交錯立體空間之纖維疊積層；該等封閉型發泡層30為內具多數獨立式閉氣孔之封閉型發泡體，成型厚度在1mm(含)以上，可係由多種材料成分經過發泡程序而成之封閉型發泡體(前述已舉例)。
裝設使用第四實施例之吸隔音複合料13時，同第一實施例相同可以選擇由最外層之封閉型發泡層30面對聲音入射方向，或者由最外層之纖維不織布層20面對聲音入射方向；當選擇由吸隔音複合材料13最外層之封閉型發泡層30面對聲音入射方向時，該封閉型發泡層30會先對入射音波做阻擋及緩衝，造成聲波能量受到隔音衰減，未完全衰減之聲波會通過該封閉型發泡層30而進入密貼之纖維不織布層20內部，然後即在該纖維不織布層20內部受到吸音衰減；有些聲波尚有能力逸出該纖維不織布層20，但隨即碰撞到二側皆為封閉型發泡層30，因此又受到隔音衰減，當其退入纖維不織布層20內時，則又受到吸音衰減，縱有些相同於入射方向之聲波因未完全衰減而得通過封閉型發泡層30，但隨即又墮入纖維不織布層20內而又收到吸音衰減，所以在經過隔音與吸音多重作用下，音波將逐漸衰竭而趨於無形；至於當選擇由吸隔音複合材料13最外層之纖維不織布層20面對聲音入射方向時，入射音波即先進入該層纖維不織布層20內經過第一次吸音衰減，再經過一層封閉型發泡層30之隔音衰減，再進入另一層纖維不織布層20之第二次吸音衰減，而後即碰撞到表面之封閉型發泡層30，因此又受到隔音衰減，當音波因無法通過封閉型發泡層30而退入纖維不織布層20內時，則又收到吸音衰減，在如此經過吸音與隔音之多重作用下，音波將逐漸衰竭而趨於無形。
在第四圖所示第四實施例之結構下，本發明更可在外層之纖維不織布層20表面上更密貼接合一層封閉型發泡層30，使形成第五圖所示第五實施例之吸隔音複合料14；或在外層之封閉型發泡層30表面上更密貼接合一層纖維不織布層20，使形成第六圖所示第六實施例之吸隔音複合料15；其中，該等纖維不織布層20皆可為以任何纖維材料採不織布製造工法製成之纖維疊積層，尤以環保回收再生纖維材料採不織布製造工法製成為佳，以達環保節能減碳之作用；各纖維不織布層20之成型厚度在0.5mm(含)以上，重量在50 g/㎡至3000 g/㎡間；該等封閉型發泡層30為內具多數獨立式閉氣孔之封閉型發泡體，成型厚度在1mm(含)以上，可係由多種材料成分經過發泡程序而成之封閉型發泡體(前述已舉例)。
不論第五實施例之吸隔音複合料14，或是第六實施例之吸隔音複合料15，都是藉由至少一層纖維不織布層20及至少一層封閉型發泡層30之密接組合，以對射至之音波做吸音與隔音之多重作用，以使音波逐漸衰竭而趨於無形。
在第一圖所示由至少一層纖維不織布層及至少一層封閉型發泡層所密貼組成之基本組成結構下，本發明之吸隔音複合材料更可在外表面上加設不同材料之表面層，以增益吸、隔音功效。其中，該封閉型發泡層有些係直接即發泡製造出所需要之厚度，以方便直接取用，在此種製造型態所生產之封閉型發泡層，其表面本即會成型有緊密且細緻之封閉面層，以對入射音波做阻擋及緩衝；但，有些封閉型發泡層係先發泡製造出較為寬(高)大之厚度，然後裁切所需要之厚度使用，在此種製造型態下所取用到之封閉型發泡層，其表面可能就不是緊密且細緻之封閉面層，而為一剖開面(可見到氣穴)之面層，因此本發明可如第七圖所示第七實施例之吸隔音複合材料16般，在由一層纖維不織布層20及一層封閉型發泡層30密貼組成之基本組成結構下，更在該封閉型發泡層30之剖開面外側上密貼一層熱塑性塑膠薄膜40，該熱塑性塑膠薄膜40之厚度在0.009mm~0.1 mm間，且係與該封閉型發泡層30之剖開面表面做完全密貼接合，形成就如同是該封閉型發泡層30之表層般；其作用係可在該封閉型發泡層30之外表面上形成一層緊密且細緻之封閉面層，以與其內封閉型發泡層30所具有之多數獨立式閉氣孔共同承受入射音波，予以阻擋並緩衝，藉以增益隔音效果。
當然，若所採用之封閉型發泡層30係直接即發泡製造出所需要之厚度者，則其表面本即會成型有緊密且細緻之封閉面層；但在製造本發明之吸隔音複合材料時，若能在該封閉型發泡層30緊密且細緻之封閉面層上更加密貼接合一層熱塑性塑膠薄膜40為表面層，使得該封閉型發泡層30的封閉面層與該熱塑性塑膠薄膜40二者共同結合為一體式之表面層，如此係更可增進整體之隔音效果。
接著，請參閱第八圖所示，在由至少一層纖維不織布層及至少一層封閉型發泡層所密貼組成之基本組成結構下，本發明第八實施例之吸隔音複合材料17更在該纖維不織布層20之外側完全密貼接合一層熱塑性塑膠薄膜40，該熱塑性塑膠薄膜40之厚度在0.009mm~0.1 mm間；其作用係音波進入纖維不織布層20內經過吸音衰減後，要逸出纖維不織布層20時，將為該熱塑性塑膠薄膜40所阻擋，而反射再進入纖維不織布層20內受到吸音衰減，如此反覆吸音衰減後，音波即逐漸衰竭而趨於無形。因此在該纖維不織布層20之外側密貼接合該層熱塑性塑膠薄膜40係可增益吸音效果。
本發明之吸隔音複合材料組成結構業經測試，證實效果良好，方據以提出申請。請參閱附件之技術報告書所示，將符合本發明條件之開發產品(測試件)與習知產品(比對件)進行吸音、隔音性能評估後，由技術報告書明顯顯示，在隔音率及吸音率之測試比較上，本發明之開發產品(測試件)皆能優於習知產品(比對件)。
由以上說明可知，本發明吸隔音複合材料之基本組成架構係由至少一層纖維不織布層及至少一層封閉型發泡層所密貼組成，其中，該纖維不織布層係以纖維材料採不織布製造工法製成之纖維疊積層，成型厚度則在0.5mm(含)以上，重量在50 g/㎡至3000 g/㎡間；該封閉型發泡層為內具多數獨立式閉氣孔之封閉型發泡體，成型厚度在1mm(含)以上。除上開基本組成架構外，本發明更可於該纖維不織布層之外側面上及/或該封閉型發泡層之面層上密貼接合一層熱塑性塑膠薄膜，該熱塑性塑膠薄膜之厚度在0.009mm~0.1 mm間，藉以增益吸音及隔音之功效。
綜上所述，本發明確可達成預期之發明目的及功效，且構造組成不曾見諸昔時，應已具備新穎性及非顯而易知性，爰請依法准予專利，實不勝感激。惟以上所述，僅為本發明之較佳可行實施例，並非因此即拘限本發明之範圍，故舉凡運用本發明所為之等效變化，理皆為本發明之專利範圍所含括。
附件：本發明之開發產品(測試件)與習知產品(比對件)進行吸音、隔音性能評估之技術報告書一份。
With regard to the technical means and structural components of the present invention for achieving the above objects, the following several preferred embodiments are described in detail below with reference to the accompanying drawings, and the advantages and advantages of the present invention are fully understood.
Referring to the first figure, the first embodiment of the present invention is a sound-absorbing composite material 10, which is composed of a fiber non-woven fabric layer 20 and a closed foam layer 30, wherein the fiber non-woven layer is composed. 20 can be made of any fiber material non-woven fabric manufacturing method, especially environmentally-friendly recycled fiber material non-woven fabric manufacturing method, to achieve environmental protection, energy saving and carbon reduction; the fiber non-woven layer 20 is formed in thickness 0.5mm or more, and the weight is between 50 g/m2 and 3000 g/m2. The main function is to support a fiber laminated layer which is formed by interlacing a plurality of fibers and having a plurality of interlaced three-dimensional spaces therein; The foam layer 30 is a closed type foam having a plurality of independent closed pores, and has a molding thickness of 1 mm or more, and can be a closed type foam obtained by a foaming process of various material components, for example, Polypropylene (PP) closed foam, polyethylene (PE) closed foam, polyurethane (PU) closed foam, polystyrene (PS) closed foam, polychlorinated Ethylene (PVC Closed foam, an ethylene / vinyl acetate copolymer (EVA) foam closed, nylon (Nylon), etc. --- closed foam or the like. When combined, the fiber nonwoven fabric layer 20 and the closed foam layer 30 must have the same size, so that the closed foam layer 30 is laid flat on the surface of the fiber nonwoven layer 20, and various suitable methods are adopted. The closed foam layer 30 and the fiber non-woven layer 20 are closely bonded to each other. For example, the two can be closely combined with the frame tightly supported by the frame, or the film can be sprayed, burned, glued or The closed foam layer 30 and the fiber nonwoven layer 20 are closely bonded to each other to form an integral composite material by hot-melt bonding or by hot press forming into a sheet material or the like.
When the device is installed and used, the closed foam layer 30 of the sound absorbing composite material 10 of the present embodiment may be faced to face the sound incident direction, or the fiber non-woven fabric layer 20 may face the sound incident direction, and the sound absorbing effect may be different. They are as follows:
1. When the closed foam layer 30 of the sound absorbing composite material 10 faces the incident direction of the sound, the closed foam layer 30 is formed with a tight and fine closed surface layer, and the interior is molded with a plurality of continuity independent. The closed-type foaming hole 30 can block and buffer the incident sound wave. When the air molecules transmitting the acoustic wave energy contact the closed-type foaming layer 30, the closed-type foaming layer 30 is firstly used. The surface layer blocks (with sound insulation effect) and absorbs energy, causing the sound wave energy to attenuate for the first time, and only the energy of the incompletely attenuated portion passes through the closed foam layer 30 into the fiber nonwoven layer 20; then the fiber is not woven. In the multi-interlaced three-dimensional space inside the layer 20, the air molecules are multi-directionally reflected, refracted, etc., and interact with most of the fibers of the fiber non-woven layer 20 to convert into frictional heat energy, so that the acoustic energy is second. The secondary attenuation (which has been greatly attenuated compared to the incident) is unable to pass through the closed foam layer 30, thereby achieving the effect of first sound insulation and sound absorption.
2. When the fiber non-woven layer 20 of the sound-absorbing composite material 10 faces the incident direction of the sound, the air molecules transmitting the acoustic wave energy directly enter the fiber non-woven layer 20, and the interlaced three-dimensional space inside the fiber non-woven layer 20 The energy dissipation effect of multi-directional reflection, refraction and the like is generated in the same direction, and at the same time, continuous frictional energy is consumed with most of the fibers of the fiber non-woven layer 20, so that the acoustic energy is greatly converted into frictional heat energy and tends to disappear (the sound absorption effect is generated). When the sound wave energy that is not completely attenuated hits the closed foam layer 30 through the fiber nonwoven layer 20, the energy of the sound-insulating layer 30 is greatly depleted, so that the closed foam layer 30 cannot be worn out, thereby achieving sound absorption first. Sound insulation effect.
Therefore, it can be seen that when the sound-absorbing composite material 10 of the first embodiment of the present invention is used, the dual function of high-efficiency sound absorption and sound insulation can be achieved.
Since the basic structural structure of the sound-absorbing and sound-insulating composite material of the present invention is composed of at least one fiber non-woven fabric layer and at least one closed-type foaming layer, the present invention can further increase the number of layers in the above basic composition structure to make the sound-absorbing and sound-absorbing The effect is better. Next, referring to the second figure, the sound-absorbing and sound-insulating composite material 11 of the second embodiment of the present invention is densely composed of a two-layer fiber nonwoven fabric layer 20 and a closed foam layer 30 closely adhered between the fiber nonwoven fabric layers 20. The fiber non-woven fabric layer 20 can be a fiber laminate layer made of any fiber material non-woven fabric manufacturing method, and can be made of an environmentally-friendly recycled fiber material non-woven fabric manufacturing method to achieve environmental protection, energy saving and carbon reduction. The fiber non-woven fabric layer 20 has a forming thickness of 0.5 mm or more and a weight of 50 g/m 2 to 3000 g/m 2 , and the main function is to support a multi-fiber staggered and intertwined interior. a fiber-stacking layer of a three-dimensional space; the closed foaming layer 30 is a closed-type foam body having a plurality of independent closed pores, and the forming thickness is 1 mm or more, and may be formed by a foaming process of a plurality of material components. The closed type foam, for example, a polypropylene (PP) closed type foam, a polyethylene (PE) closed type foam, a polyurethane (PU) closed type foam, a polystyrene (PS) seal A closed type foam, a polyvinyl chloride (PVC) closed type foam, an ethylene/vinyl acetate copolymer (EVA) closed type foam, a nylon (Nylon) closed type foam, or the like. When combined, the fiber nonwoven fabric layer 20 and the closed foam layer 30 must have the same size, so that the fiber nonwoven fabric layer 20 is laid flat on the surface of the closed foam layer 30, and various kinds of In a suitable manner, the two-layer fiber non-woven fabric layer 20 and the middle closed-type foaming layer 30 are closely combined, for example, the outer layer can be tightly bonded by the frame in a tight manner, or the film can be collected. Burning, gluing or hot-melt bonding, or more by means of hot pressing into a sheet or the like to make it a composite material.
As can be seen from the comparison of the first and second figures, the sound-absorbing and sound-insulating composite material 11 of the second embodiment of the present invention further adds a layer of the fiber-non-woven fabric layer 20 to the closed-type foam layer 30 in the composition of the first embodiment. Outside. Therefore, when installed, the fiber non-woven layer 20 on either side can face the incident direction of the sound, so that the incident sound wave is first attenuated by the first sound absorption layer 20 of the fiber non-woven layer 20, and then the sound-insulated attenuation of the closed-type foam layer 30 is passed. Finally, through the second sound absorption attenuation of the other layer of the fiber non-woven layer 20, it can have more effective sound absorption and sound insulation effects.
Next, referring to the third figure, the sound-absorbing and sound-insulating composite material 12 according to the third embodiment of the present invention is a closed-type foaming layer in which a layer of the fiber non-woven fabric layer 20 and the two layers are respectively adhered to the outer side surfaces of the fiber nonwoven fabric layers 20, respectively. The layer 30 is closely attached to each other, wherein the fiber non-woven fabric layers 20 can be made of any fiber material non-woven fabric manufacturing method, especially the environmentally-friendly recycled fiber material non-woven fabric manufacturing method is better. The role of environmental protection, energy saving and carbon reduction; each fiber non-woven layer 20 has a forming thickness of 0.5 mm or more and a weight of 50 g/m2 to 3000 g/m2. The main function is to support a cross-cutting of most fibers. a fiber-stacking layer having a plurality of interlaced three-dimensional spaces therein; the closed-type foaming layer 30 is a closed-type foam body having a plurality of independent closed-air holes, and the forming thickness is 1 mm or more, and may be subjected to a plurality of material components. A closed foam formed by a foaming process (previously exemplified). When combined, the size of the closed foam layer 30 and the fiber nonwoven layer 20 must be equal, so that the closed foam layers 30 are laid flat on the two side surfaces of the fiber nonwoven layer 20, and then The two-layer closed foam layer 30 and the middle fiber non-woven layer 20 are closely combined and combined in various suitable manners, for example, the outer layer can be tightly bonded by the frame in a tight manner, or the shower can be used. Membrane, burn-in, gluing or hot-melt bonding, or more by means of hot-press forming into a sheet material to make it a composite material.
As can be seen from the comparison of the first and third figures, the sound-absorbing and sound-insulating composite material 12 of the third embodiment of the present invention further adds a closed-type foamed layer 30 to the composition of the first embodiment to adhere to the fiber-nonwoven layer 20 . Outside. Therefore, when installed, the closed foam layer 30 on either side can face the incident direction of the sound, so that the incident sound wave first passes through the first sound insulation and attenuation of the closed foam layer 30, and then passes through the fiber nonwoven layer 20 The sound absorption is attenuated, and finally, through the sound insulation attenuation of the other closed foam layer 30, the sound is as far as possible to be contained in the overall sound-absorbing composite material 12, which tends to be exhausted and disappeared, and has more effective sound absorption and sound insulation effects.
In the basic composition structure of the sound-absorbing and sound-insulating composite material of the present invention, which is composed of at least one fiber non-woven fabric layer and at least one closed foam layer, the present invention can also be used in the structure of the third embodiment. Forming a layer of the fiber non-woven fabric 20 on the outer side of one of the closed foam layers 30 so as to form the sound-absorbing composite material 13 of the fourth embodiment as shown in the fourth embodiment; The sound-absorbing composite material 13 is composed of two groups of sound-absorbing composite materials 10, so that a layer of the fiber-non-woven layer 20 is adhered to the whole of the closed foam layer 30, and then a layer of closed hair is continuously attached. The foam layer 30 and the fiber non-woven fabric layer 20 are formed by continuously adhering and bonding one body composite material with four objects; wherein the fiber nonwoven fabric layers 20 can be made of any fiber material and non-woven fabric manufacturing method. The laminated layer, especially the environmentally-friendly recycled fiber material is made by the non-woven fabric manufacturing method, to achieve the effect of environmental protection, energy saving and carbon reduction; the forming thickness of each fiber non-woven layer 20 is 0.5 mm (inclusive) Above, the weight is between 50 g/m2 and 3000 g/m2, and the main function is to support a fiber laminated layer which is formed by staggering a plurality of fibers and having a plurality of interlaced three-dimensional spaces therein; the closed foaming layers 30 are A closed type foam having a plurality of independent closed pores, and having a molding thickness of 1 mm or more, may be a closed type foam obtained by a foaming process of a plurality of material components (previously exemplified).
When the sound-absorbing composite material 13 of the fourth embodiment is installed, it is possible to select the outer-side closed-type foam layer 30 to face the sound incident direction as in the first embodiment, or to face the outermost fiber nonwoven layer 20. The incident direction of the sound; when the closed foam layer 30 of the outermost layer of the sound absorbing composite material 13 is selected to face the incident direction of the sound, the closed foam layer 30 first blocks and buffers the incident sound wave, thereby causing the sound energy of the sound wave to be soundproofed. The attenuated, incompletely attenuated sound waves pass through the closed foam layer 30 into the interior of the cell nonwoven fabric layer 20, and then the sound absorption is attenuated inside the fiber nonwoven layer 20; some sound waves are still capable of escaping the fiber nonwoven fabric. The layer 20, but then collides with the closed foam layer 30 on both sides, and is thus attenuated by sound insulation. When it is retracted into the fiber non-woven layer 20, it is attenuated by sound absorption, and the sound wave is the same as the incident direction. It does not completely decay and passes through the closed foam layer 30, but then breaks into the fiber non-woven layer 20 and receives sound absorption attenuation, so under the multiple effects of sound insulation and sound absorption The sound wave will gradually deplete and tend to be invisible; as when the fiber non-woven layer 20 of the outermost layer of the sound-absorbing composite material 13 is selected to face the incident direction of the sound, the incident sound wave first enters the layer of the fiber non-woven layer 20 and passes through the first sound absorption. The attenuation is further attenuated by the sound insulation of the closed foam layer 30, and then enters the second sound absorbing layer 20 of the other fiber nonwoven layer 20, and then collides with the closed foam layer 30 of the surface, thereby being attenuated by sound insulation. When the sound wave is unable to pass through the closed foam layer 30 and is retracted into the fiber nonwoven layer 20, the sound absorption is attenuated. Under such multiple effects of sound absorption and sound insulation, the sound wave will gradually deplete and tend to be invisible.
In the structure of the fourth embodiment shown in the fourth figure, the present invention can more closely bond a closed foam layer 30 on the surface of the outer fiber non-woven fabric layer 20, so that the fifth embodiment shown in the fifth figure is formed. The sound-absorbing composite material 14; or a layer of the fiber-non-woven fabric 20 is more closely bonded to the surface of the outer layer of the closed foam layer 30, so as to form the sound-absorbing composite 15 of the sixth embodiment shown in FIG. 6; The fiber non-woven fabric layer 20 can be a fiber laminated layer made of any fiber material non-woven fabric manufacturing method, especially the environmentally-friendly recycled fiber material non-woven fabric manufacturing method is better, to achieve environmental protection, energy saving and carbon reduction; each fiber non-woven fabric The layer 20 has a molding thickness of 0.5 mm or more and a weight of 50 g/m 2 to 3000 g/m 2 ; the closed foam layer 30 is a closed type foam having a plurality of independent closed pores, and is formed. The thickness may be 1 mm or more, and may be a closed type foam obtained by a foaming process of a plurality of material components (previously exemplified).
The sound-absorbing composite material 14 of the fifth embodiment, or the sound-absorbing composite material 15 of the sixth embodiment, is a combination of at least one layer of the fiber non-woven fabric layer 20 and at least one of the closed foam layer 30, The sound waves that are shot to do the multiple functions of sound absorption and sound insulation, so that the sound waves gradually fail and tend to be invisible.
In the first embodiment, the sound-absorbing composite material of the present invention can be further provided with a surface layer of different materials on the outer surface, which is composed of at least one layer of the fiber non-woven fabric layer and at least one layer of the closed foam layer. With gain absorption and sound insulation. Wherein, the closed foam layer is directly foamed to produce the required thickness for convenient direct access, and the closed foam layer produced in such a manufacturing form has a surface which is formed tightly and Finely enclose the surface layer to block and buffer the incident sound waves; however, some closed foam layers are first foamed to produce a wider (higher) thickness, and then the thickness required for cutting is used. The closed foam layer used in the manufacturing form may have a surface which is not a tight and fine closed layer, but a face layer of a cut surface (visible to the cavitation), so the present invention can be as In the seventh embodiment, the sound-absorbing and sound-insulating composite material 16 of the seventh embodiment is further composed of a layer of the fiber non-woven fabric layer 20 and a layer of the closed foam layer 30, and is further composed of the closed foam layer 30. A thermoplastic plastic film 40 is adhered on the outer side of the split surface, and the thermoplastic plastic film 40 has a thickness of between 0.009 mm and 0.1 mm, and is completely adhered to the cut surface of the closed foam layer 30 to form a completely bonded joint. Just like the surface layer of the closed foam layer 30 The function is to form a close and fine closed surface layer on the outer surface of the closed foam layer 30, so as to bear the incident sound wave together with the majority of the independent closed pores of the inner closed foam layer 30, Block and buffer to gain sound insulation.
Of course, if the closed foam layer 30 used is directly foamed to produce the required thickness, the surface thereof will be formed with a tight and fine closed surface layer; however, in the manufacture of the sound-absorbing composite material of the present invention. When the thermoplastic foam film 40 is more adhesively bonded to the closed surface layer of the closed foam layer 30, the thermoplastic resin film 40 is a surface layer, so that the closed surface layer of the closed foam layer 30 and the thermoplastic plastic film The combination of the two is a one-piece surface layer, which enhances the overall sound insulation.
Next, referring to the eighth embodiment, the sound-absorbing and sound-insulating composite material 17 of the eighth embodiment of the present invention is further composed of a basic composition composed of at least one layer of the fiber non-woven fabric layer and at least one of the closed foam layer. The outer surface of the fiber non-woven fabric layer 20 is completely adhered to a thermoplastic plastic film 40, and the thickness of the thermoplastic plastic film 40 is between 0.009 mm and 0.1 mm; the effect is that the sound wave enters the fiber non-woven layer 20 and is attenuated by the sound absorption to escape the fiber. When the nonwoven layer 20 is not woven, the thermoplastic plastic film 40 is blocked, and the reflection is re-entered into the fiber non-woven layer 20, and the sound absorption is attenuated. Thus, after the sound absorption is attenuated, the sound wave gradually deteriorates and tends to be invisible. Therefore, bonding the layer of the thermoplastic plastic film 40 to the outer side of the fiber non-woven fabric layer 20 can enhance the sound absorbing effect.
The composition of the sound-absorbing and sound-insulating composite material of the present invention has been tested and proved to be effective, and the application is filed accordingly. Please refer to the attached technical report for the sound absorption and sound insulation performance of the developed products (test pieces) and the conventional products (comparative parts) that meet the conditions of the present invention. In comparison with the test of the sound absorption rate, the developed product (test piece) of the present invention can be superior to the conventional product (comparison piece).
It can be seen from the above description that the basic composition structure of the sound-absorbing and sound-insulating composite material of the present invention is composed of at least one fiber non-woven fabric layer and at least one closed foam layer, wherein the fiber non-woven fabric layer is made of a fiber material non-woven fabric manufacturing method. The fiber laminated layer has a forming thickness of 0.5 mm or more and a weight of 50 g/m 2 to 3000 g/m 2 ; the closed foaming layer is a closed type foam having a plurality of independent closed pores therein; The molding thickness is 1 mm or more. In addition to the upper basic structure, the present invention can further adhere a thermoplastic plastic film to the outer surface of the fiber non-woven layer and/or the surface layer of the closed foam layer. The thickness of the thermoplastic plastic film is 0.009. Between mm and 0.1 mm, the effect of gaining sound absorption and sound insulation.
In summary, the present invention can achieve the intended purpose and effect of the invention, and the structural composition has not been seen in the past, should have been novel and not obvious, and it is grateful to grant patents according to law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the equivalents of the present invention are included in the patent scope of the present invention.
Attachment: A technical report on the sound absorption and sound insulation performance evaluation of the developed product (test piece) of the present invention and the conventional product (comparative piece).
10．．．吸隔音複合材料10. . . Suction insulation composite
11．．．吸隔音複合材料11. . . Suction insulation composite
12．．．吸隔音複合材料12. . . Suction insulation composite
13．．．吸隔音複合材料13. . . Suction insulation composite
14．．．吸隔音複合材料14. . . Suction insulation composite
15．．．吸隔音複合材料15. . . Suction insulation composite
16．．．吸隔音複合材料16. . . Suction insulation composite
17．．．吸隔音複合材料17. . . Suction insulation composite
20．．．纖維不織布層20. . . Fiber non-woven layer
30．．．封閉型發泡層30. . . Closed foam layer
40．．．熱塑性塑膠薄膜40. . . Thermoplastic plastic film
第一圖係本發明第一實施例之組成結構示意圖。
第二圖係本發明第二實施例之組成結構示意圖。
第三圖係本發明第三實施例之組成結構示意圖。
第四圖係本發明第四實施例之組成結構示意圖。
第五圖係本發明第五實施例之組成結構示意圖。
第六圖係本發明第六實施例之組成結構示意圖。
第七圖係本發明第七實施例之組成結構示意圖。
第八圖係本發明第八實施例之組成結構示意圖。
The first figure is a schematic structural view of a first embodiment of the present invention.
The second drawing is a schematic structural view of a second embodiment of the present invention.
The third figure is a schematic structural view of a third embodiment of the present invention.
The fourth figure is a schematic structural view of a fourth embodiment of the present invention.
The fifth figure is a schematic structural view of a fifth embodiment of the present invention.
Figure 6 is a schematic view showing the constitution of a sixth embodiment of the present invention.
The seventh drawing is a schematic structural view of a seventh embodiment of the present invention.
The eighth drawing is a schematic structural view of the eighth embodiment of the present invention.
10．．．吸隔音複合材料10. . . Suction insulation composite
20．．．纖維不織布層20. . . Fiber non-woven layer
30．．．封閉型發泡層30. . . Closed foam layer
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101104816A TW201333310A (en) | 2012-02-15 | 2012-02-15 | Composition structure of sound absorbing/isolating composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101104816A TW201333310A (en) | 2012-02-15 | 2012-02-15 | Composition structure of sound absorbing/isolating composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201333310A true TW201333310A (en) | 2013-08-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101104816A TW201333310A (en) | 2012-02-15 | 2012-02-15 | Composition structure of sound absorbing/isolating composite material |
Country Status (1)
| Country | Link |
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| TW (1) | TW201333310A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI782843B (en) * | 2021-12-30 | 2022-11-01 | 銘鋐企業有限公司 | The structure of floor sound insulation layer cushion |
-
2012
- 2012-02-15 TW TW101104816A patent/TW201333310A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI782843B (en) * | 2021-12-30 | 2022-11-01 | 銘鋐企業有限公司 | The structure of floor sound insulation layer cushion |
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