KR20110128980A - Manufacturing method of biodegradable sound-absorbing material for vehicle - Google Patents
Manufacturing method of biodegradable sound-absorbing material for vehicle Download PDFInfo
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- KR20110128980A KR20110128980A KR1020100048345A KR20100048345A KR20110128980A KR 20110128980 A KR20110128980 A KR 20110128980A KR 1020100048345 A KR1020100048345 A KR 1020100048345A KR 20100048345 A KR20100048345 A KR 20100048345A KR 20110128980 A KR20110128980 A KR 20110128980A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/12—Physical properties biodegradable
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/12—Vehicles
Abstract
Description
본 발명은 자동차 내장용 생분해성 흡음재의 제조방법에 관한 것으로, 더욱 상세하게는 혼섬단계, 웹적층단계, 펠트형성단계, 예열단계 및 냉각성형단계를 포함하여 이루어진다.
The present invention relates to a method for manufacturing a biodegradable sound absorbing material for automobile interiors, and more particularly, comprises a blending step, a web laminating step, a felt forming step, a preheating step and a cooling molding step.
본 발명은 자동차 내장용 생분해성 흡음재의 제조방법에 관한 것으로, 더욱 상세하게는 혼섬단계, 웹적층단계, 펠트형성단계, 예열단계 및 냉각성형단계를 포함하여 이루어진다.The present invention relates to a method for manufacturing a biodegradable sound absorbing material for automobile interiors, and more particularly, comprises a blending step, a web laminating step, a felt forming step, a preheating step and a cooling molding step.
자동차의 흡음재는 엔진룸이나 차량의 바닥으로부터 차량에 실내로 유입되는 소음 등을 차단하는 기능을 하는데, 종래에 자동차 내장용 흡음재로는 폴리우레탄, 폴리프로필렌, 폴리에스터 및 저융점폴리에스터 등 합성섬유가 주로 사용되었다.The sound absorbing material of the car blocks the noise from entering the room from the engine room or the floor of the car. Conventionally, as the sound absorbing material for the car interior, synthetic fibers such as polyurethane, polypropylene, polyester and low melting point polyester are used. Was mainly used.
합성섬유로 제조된 차량용 흡음재는 차량 폐기시에 별도로 분리되어 토양에 매립하거나 소각하여 처리하는데, 토양에 매립하는 경우는 합성섬유 성분이 미생물에 의해 잘 분해되지 않아 토양을 오염시키는 문제점이 있으며, 소각하는 경우는 소각과정에서 이산화탄소 및 각종 유해물질이 배출되어 환경을 오염시키는 문제점이 있었다.Vehicle sound absorbing materials made of synthetic fibers are separated separately when the vehicle is disposed and disposed of or processed by incineration.In the case of embedding in soil, synthetic fiber components are not easily decomposed by microorganisms and contaminate the soil. In the case of incineration, carbon dioxide and various harmful substances are discharged to pollute the environment.
전술한 문제점을 해결하기 위해, 매립이나 소각 이외에 합성섬유로 이루어진 흡음재를 재활용 방법이 이용되었으나, 기술의 발전에 따라 흡음재의 성능이 계속적으로 향상되는 가운데 종래에 개발된 흡음재는 이러한 성능을 따라가지 못하고, 재활용을 위해 전처리하는 과정이 복잡할 뿐만 아니라 고가의 처리비용을 부담해야 하는 문제점이 있었다.
In order to solve the above problems, the method of recycling the sound absorbing material made of synthetic fibers in addition to landfilling or incineration has been used, but the sound absorbing material developed in the prior art does not keep up with the performance while the performance of the sound absorbing material is continuously improved with the development of technology. In addition, the pretreatment process is not only complicated for recycling, but also has to be expensive.
본 발명의 목적은 생분해성 물질로 이루어져 토양에 존재하는 미생물에 의해 쉽게 분해되고, 분해과정에서 휘발성 유기물질이 배출되지 않고, 이산화탄소의 발생량은 매우 낮아 친환경적인 자동차 내장용 생분해성 흡음재의 제조방법을 제공하는 것이다.
An object of the present invention is made of a biodegradable material is easily decomposed by microorganisms present in the soil, volatile organic substances are not emitted during the decomposition process, the amount of carbon dioxide generated is very low, the environmentally friendly method for manufacturing biodegradable sound absorbing material for automobile interior To provide.
본 발명의 목적은 폴리유산섬유와 저융점 폴리유산복합섬유를 혼섬하는 혼섬단계, 상기 혼섬단계를 거쳐 혼섬된 섬유를 웹으로 형성하고 적층하는 웹적층단계, 상기 웹적층단계를 거쳐 형성된 웹 적층체를 펠트로 형성하는 펠트형성단계, 상기 펠트형성단계를 거쳐 제조된 펠트를 예열하는 예열단계 및 예열된 펠트를 냉각성형하는 냉각성형단계를 포함하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법을 제공함에 의해 달성된다.An object of the present invention is a blending step of intermixing polylactic acid fiber and low-melting point polylactic acid composite fiber, web laminating step of forming and laminating the mixed fiber into a web through the blending step, web laminate formed through the web laminating step Method for producing a biodegradable sound absorbing material for automobile interior, characterized in that it comprises a felt forming step of forming a felt, a preheating step of preheating the felt prepared through the felt forming step and a cooling molding step of cooling the preheated felt. By providing.
본 발명의 바람직한 특징에 따르면, 상기 혼섬단계는 폴리유산섬유 60 내지 80 중량부, 저융점 폴리유산섬유 20 내지 40 중량부를 혼섬하여 이루어지는 것으로 한다.According to a preferred feature of the present invention, the blending step is to be made by mixing 60 to 80 parts by weight of polylactic acid fiber, 20 to 40 parts by weight of low melting point polylactic acid fiber.
본 발명의 더 바람직한 특징에 따르면, 상기 폴리유산섬유는 용융온도가 170 내지 230℃인 것으로 한다.According to a more preferred feature of the invention, the polylactic acid fiber is to have a melting temperature of 170 to 230 ℃.
본 발명의 더욱 바람직한 특징에 따르면, 상기 저융점 폴리유산복합섬유는 코어성분인 폴리유산수지를 시스성분인 저융점폴리유산수지로 감싼 코어-시스형 복합섬유 및 폴리유산수지와 저융점폴리유산수지가 사이드 바이 사이드로 복합방사된 사이드 바이 사이드형 복합섬유로 이루어진 그룹으로부터 선택된 하나 이상을 포함하여 이루어지는 것으로 한다.According to a more preferable feature of the present invention, the low-melting polylactic acid composite fiber is a core-ciss composite fiber and a poly-lactic acid resin and a low-melting point polylactic acid resin wrapped with a polylactic acid resin as a core component And at least one selected from the group consisting of side-by-side composite fibers conjugated to side-by-side.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 폴리유산수지의 용융온도는 170 내지 230℃이며, 상기 저융점폴리유산수지의 용융온도는 120 내지 140℃인 것으로 한다.According to a further preferred feature of the invention, the melting temperature of the polylactic acid resin is 170 to 230 ℃, the melting temperature of the low-melting point polylactic acid resin is to be 120 to 140 ℃.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 혼섬단계는 천연섬유 60 내지 80 중량부를 더 포함하여 이루어지는 것으로 한다.According to an even more preferred feature of the present invention, the blending step is to comprise 60 to 80 parts by weight of natural fibers further.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 천연섬유는 면 섬유, 케이폭 섬유, 마 섬유, 모 섬유 및 실크섬유로 이루어진 그룹으로부터 선택된 하나 이상을 포함하여 이루어지는 것으로 한다.According to a still further preferred feature of the present invention, the natural fiber comprises at least one selected from the group consisting of cotton fiber, kapok fiber, hemp fiber, wool fiber and silk fiber.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 웹적층단계는 상기 혼섬단계를 거쳐 혼섬된 섬유를 카딩 또는 에어레이드하여 이루어지는 것으로 한다.According to a further preferred feature of the invention, the web lamination step is to be made by carding or airlaid the fibers mixed through the blending step.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 펠트형성단계는 상기 웹적층단계를 거쳐 형성된 웹 적층체를 예열압착하거나 니들펀칭하여 이루어지는 것으로 한다.According to a further preferred feature of the invention, the felt forming step is to be made by pre-compression bonding or needle punching the web laminate formed through the web laminating step.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 예열단계는 상기 펠트형성단계를 거쳐 제조된 펠트를 오븐예열하거나 금형예열하여 이루어지는 것으로 한다.According to an even more preferred feature of the present invention, the preheating step is to be made by preheating the oven or preheating the mold produced through the felt forming step.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 냉각성형단계는 표면온도가 20 내지 40℃인 금형에서 60 내지 150kgf/cm2의 압력으로 20 내지 60초 동안 이루어지는 것으로 한다.
According to a further preferred feature of the present invention, the cooling molding step is to be made for 20 to 60 seconds at a pressure of 60 to 150kgf / cm 2 in a mold having a surface temperature of 20 to 40 ℃.
본 발명에 따른 자동차 내장용 생분해성 흡음재의 제조방법은 생분해성 물질로 이루어져 토양에 존재하는 미생물에 의해 쉽게 분해되고, 분해과정에서 휘발성 유기물질이 배출되지 않고, 이산화탄소의 발생량은 매우 낮아 친환경적인 자동차 내장용 생분해성 흡음재를 제공하는 탁월한 효과를 나타낸다.
Biodegradable sound absorbing material for automobile interior according to the present invention is made of biodegradable material is easily decomposed by microorganisms present in the soil, volatile organic substances are not emitted during the decomposition process, carbon dioxide generation is very low, environmentally friendly automobile Excellent effect of providing a biodegradable sound absorbing material for the interior.
도 1은 본 발명에 따른 자동차 내장용 생분해성 흡음재의 제조방법을 나타낸 순서도이다.1 is a flow chart illustrating a method of manufacturing a biodegradable sound absorbing material for automobile interior according to the present invention.
이하에는, 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.
In the following, preferred embodiments of the present invention and the physical properties of each component will be described in detail, which is intended to explain in detail enough to be able to easily carry out the invention by one of ordinary skill in the art, This does not mean that the technical spirit and scope of the present invention is limited.
본 발명에 따른 자동차 내장용 생분해성 흡음재의 제조방법은 폴리유산섬유와 저융점 폴리유산복합섬유를 혼섬하는 혼섬단계(S101), 전술한 혼섬단계(S101)를 거쳐 혼섬된 섬유를 웹으로 형성하고 적층하는 웹적층단계(S103), 전술한 웹적층단계(S103)를 거쳐 형성된 웹 적층체를 펠트로 형성하는 펠트형성단계(S105), 전술한 펠트형성단계(S105)를 거쳐 제조된 펠트를 예열하는 예열단계(S107) 및 예열된 펠트를 냉각성형하는 냉각성형단계(S109)를 포함하여 이루어진다.
In the method for manufacturing a biodegradable sound absorbing material for automobile interior according to the present invention, a blended fiber is mixed through a blending step (S101) and a blending step (S101) described above to blend a polylactic acid fiber and a low melting point polylactic acid composite fiber into a web. The web laminating step (S103) for laminating, the felt forming step (S105) for forming the web laminate formed through the web laminating step (S103) described above, and the preheating of the felt manufactured through the above-mentioned felt forming step (S105). It comprises a preheating step (S107) and a cooling molding step (S109) for cooling the preheated felt.
전술한 혼섬단계(S101)는 폴리유산섬유와 저융점 폴리유산복합섬유를 혼섬하는 단계로, 폴리유산섬유 60 내지 80 중량부, 저융점 폴리유산섬유 20 내지 40 중량부를 혼섬하여 이루어지는데, 이때, 전술한 저융점 폴리유산복합섬유는 융점이 낮아 전술한 펠트형성단계(S105)나 예열단계(S107)에서 용융되어 바인더의 역할을 하게 된다.The above-mentioned mixing step (S101) is a step of mixing the polylactic acid fiber and the low melting point polylactic acid composite fiber, and is made by mixing 60 to 80 parts by weight of the polylactic acid fiber and 20 to 40 parts by weight of the low melting point polylactic acid fiber. The low melting point polylactic acid composite fiber described above has a low melting point and is melted in the above-described felt forming step (S105) or the preheating step (S107) to serve as a binder.
전술한 폴리유산섬유는 용융온도가 170 내지 230℃인 것을 사용하며, 전술한 저융점 폴리유산복합섬유는 코어성분인 폴리유산수지를 시스성분인 저융점폴리유산수지로 감싼 코어-시스형 복합섬유 및 폴리유산수지와 저융점폴리유산수지가 사이드 바이 사이드로 복합방사된 사이드 바이 사이드형 복합섬유로 이루어진 그룹으로부터 선택된 하나 이상을 포함하여 이루어진다.The polylactic acid fiber described above uses a melting temperature of 170 to 230 ° C, and the low-melting polylactic acid composite fiber described above is a core-cis-type composite fiber wrapped with a polylactic acid resin as a core component with a low-melting polylactic acid resin as a cis component. And at least one selected from the group consisting of side by side composite fibers in which the polylactic acid resin and the low melting point polylactic acid resin are conjugated to the side by side.
이때, 전술한 폴리유산수지의 용융온도는 170 내지 230℃이며, 전술한 저융점폴리유산수지의 용융온도는 120 내지 140℃인 것이 사용된다.At this time, the melting temperature of the above-mentioned polylactic acid resin is 170 to 230 ℃, the melting temperature of the above-mentioned low melting point polylactic acid resin is used is 120 to 140 ℃.
또한, 전술한 혼섬단계(S101)는 천연섬유 60 내지 80 중량부를 더 포함하여 이루어질 수도 있는데, 천연섬유는 면 섬유, 케이폭 섬유, 마 섬유, 모 섬유 및 실크섬유로 이루어진 그룹으로부터 선택된 하나 이상을 포함하여 이루어진다.In addition, the above-mentioned blending step (S101) may further comprise 60 to 80 parts by weight of natural fibers, the natural fibers include one or more selected from the group consisting of cotton fibers, kapok fibers, hemp fibers, wool fibers and silk fibers. It is done by
전술한 성분들로 이루어진 섬유들을 고르게 혼섬하기 위해 에어블로잉(Air Blowing) 과정을 반복적으로 실시하여 혼섬과정을 진행한다.
In order to evenly blend the fibers composed of the aforementioned components, the air blowing process is repeatedly performed to proceed the blending process.
전술한 웹적층단계(S103)는 전술한 혼섬단계(S101)를 거쳐 혼섬된 섬유를 웹으로 형성하고 적층하는 단계로, 전술한 혼섬단계(S101)를 거쳐 혼섬된 섬유를 카딩 또는 에어레이드하여 웹으로 형성하고, 웹으로 형성된 섬유를 적층하여 이루어진다.
The web lamination step (S103) is a step of forming and laminating the mixed fibers into a web through the above-mentioned blending step (S101), and by carding or airlaiding the mixed fibers through the aforementioned blending step (S101) It is formed by laminating and laminating the fibers formed into a web.
전술한 펠트형성단계(S105)는 전술한 웹적층단계(S103)를 거쳐 형성된 웹 적층체를 펠트로 형성하는 단계로, 웹 적층체를 예열압착하거나 니들펀칭하여 펠트로 형성하는 단계다.The above-described felt forming step (S105) is a step of forming a web laminate formed through the above-described web lamination step (S103) as a felt, and is a step of pre-pressing or needle punching the web laminate to form a felt.
이때, 예열압착을 실시하게 되면, 웹 적층체를 구성하는 섬유 중 저융점 폴리유산복합섬유는 용융되어 나머지 섬유들을 결합시키는 바인더의 역할을 하게 된다.
At this time, when preheating compression is performed, the low melting point polylactic acid composite fiber among the fibers constituting the web laminate is melted to serve as a binder for bonding the remaining fibers.
전술한 예열단계(S107)는 전술한 펠트형성단계(S105)를 거쳐 제조된 펠트를 예열하는 단계로, 전술한 펠트형성단계(S105)를 거쳐 제조된 펠트를 130 내지 160℃의 오븐을 이용하여 오븐예열하거나 130 내지 160℃로 가열된 금형을 이용하여 금형예열하는 단계다.
The above preheating step (S107) is a step of preheating the felt produced through the above-described felt forming step (S105), using the oven prepared from the above-described felt forming step (S105) using an oven of 130 to 160 ℃ Preheating the mold using a mold preheated to an oven or heated to 130 to 160 ° C.
전술한 냉각성형단계(S109)는 전술한 예열단계(S107)에서 예열된 펠트를 냉각성형하는 단계로, 전술한 예열단계에서 130 내지 160℃의 온도로 가열된 펠트를 표면온도가 20 내지 40℃인 금형에서 60 내지 150kgf/cm2의 압력으로 20 내지 60초 동안 냉각성형하는 단계다.
The above-mentioned cooling molding step (S109) is a step of cooling molding the preheated felt in the aforementioned preheating step (S107), the surface temperature of the felt heated to a temperature of 130 to 160 ℃ in the above preheating step 20 to 40 ℃ Cooling in a mold for 20 to 60 seconds at a pressure of 60 to 150kgf / cm 2 .
이하에서는, 본 발명에 따른 자동차 내장용 생분해성 흡음재의 제조방법 및 이 제조방법을 통해 제조된 흡음재의 물성을 실시예를 들어 설명하기로 한다.
Hereinafter, a method of manufacturing a biodegradable sound absorbing material for automobile interior according to the present invention and the physical properties of the sound absorbing material manufactured through the manufacturing method will be described with reference to Examples.
<실시예 1>≪ Example 1 >
폴리유산섬유 70 중량부 및 저융점 폴리유산복합섬유 30 중량부를 혼섬한 후에 카딩공정으로 웹을 형성하여 면밀도가 1000g/m2이 되도록 적층하고, 니들펀칭공정을 실시하여 펠트를 제조하였다.
After mixing 70 parts by weight of polylactic acid fiber and 30 parts by weight of low-melting point polylactic acid composite fiber, a web was formed by a carding process to laminate a surface density of 1000 g / m 2 , and a needle punching process was performed to prepare a felt.
<실시예 2><Example 2>
실시예 1과 동일하게 진행하되, 폴리유산섬유 65 중량부 및 저융점 폴리유산복합섬유 35 중량부를 혼섬하여 펠트를 제조하였다.
Proceed in the same manner as in Example 1, by mixing 65 parts by weight of polylactic acid fiber and 35 parts by weight of low-melting polylactic acid composite fiber to prepare a felt.
<실시예 3><Example 3>
실시예 1과 동일하게 진행하되, 폴리유산섬유 60 중량부 및 저융점 폴리유산복합섬유 40 중량부를 혼섬하여 펠트를 제조하였다.
Proceed in the same manner as in Example 1, by mixing 60 parts by weight of polylactic acid fiber and 40 parts by weight of low-melting polylactic acid composite fiber to prepare a felt.
<비교예 1>Comparative Example 1
폴리에스터섬유 70 중량부 및 저융점 폴리에스터섬유 30 중량부를 혼섬한 후에 카딩공정으로 웹을 형성하여 면밀도가 1000g/m2이 되도록 적층하고, 니들펀칭공정을 실시하여 펠트를 제조하였다.
After mixing 70 parts by weight of polyester fibers and 30 parts by weight of low-melting polyester fibers, a web was formed by a carding process, and laminated to a surface density of 1000 g / m 2 , and a needle punching process was performed to produce felt.
실시예 1 내지 3 및 비교예 1을 통해 제조된 펠트의 최적화된 성형조건(예열온도 및 예열시간)을 확인하기 위해 표면온도가 130 내지 160℃로 예열된 금형을 이용하여 35 내지 65초 동안 예열하고, 표면온도가 25℃인 성형금형에서 80kgf/cm2의 압력으로 40초 동안 성형하여 두께가 5mm인 흡음재를 제조하고 KS M6518의 1호 형으로 시편을 5매 제작하여 200mm/min의 인장속도로 인장강도를 측정하여 아래 표 1에 나타내었다.Preheating for 35 to 65 seconds using a mold preheated to 130 to 160 ° C in order to check the optimized molding conditions (preheating temperature and preheating time) of the felt prepared in Examples 1 to 3 and Comparative Example 1 A 40 mm thick sound-absorbing material was produced by molding for 40 seconds under a pressure of 80 kgf / cm 2 in a mold having a surface temperature of 25 ° C., and 5 pieces of specimens were prepared using type 1 of KS M6518 to obtain a tensile speed of 200 mm / min. Tensile strength was measured as shown in Table 1 below.
<표 1>TABLE 1
위에 표 1에 나타낸 것처럼 본 발명에 따른 자동차 내장용 생분해성 흡음재의 제조방법으로 제조된 흡음재는 종래에 사용되던 자동차 내장용 흡음재와 동등한 수준의 인장강도를 갖는 것을 알 수 있다.
As shown in Table 1 above, it can be seen that the sound absorbing material manufactured by the method for manufacturing the biodegradable sound absorbing material for automobile interior according to the present invention has a tensile strength equivalent to that of the sound absorbing material for automobile interior used in the related art.
또한, ASTM E1050의 수직입사 흡음율 평가방법으로 측정된 시편 5매의 흡음계수 평균값을 아래 표 2에 나타내었다.
In addition, the average sound absorption coefficient of the five specimens measured by the vertical incidence sound absorption evaluation method of ASTM E1050 is shown in Table 2 below.
<표 2>TABLE 2
위에 표 2에 나타낸 것처럼 본 발명에 따른 자동차 내장용 생분해성 흡음재의 제조방법은 낮은 예열온도와 짧은 예열시간으로도 종래의 자동차 내장용 흡음재와 동등한 수준의 흡음성능을 발휘하는 흡음재를 제조할 수 있는 것을 알 수 있다.
As shown in Table 2 above, the method for manufacturing a biodegradable sound absorbing material for automobile interior according to the present invention can produce a sound absorbing material exhibiting the same level of sound absorbing performance as the sound absorbing material for automobile interior even with low preheating temperature and short preheating time. It can be seen that.
<실시예 4><Example 4>
폴리유산섬유 70 중량부 및 저융점폴리유산복합섬유 30 중량부를 혼섬한 후에 카딩하여 형성된 웹을 면밀도가 1000g/m2이 되도록 적층한 후에 예열압착공정을 실시하여 제조된 펠트를 140℃의 오븐에서 150초 동안 예열한 후에 표면온도가 25℃인 성형금형에서 80kgf/cm2의 압력으로 40초 동안 성형하여 20mm의 두께를 갖는 자동차 내장용 생분해성 흡음재를 제조하였다.
After mixing 70 parts by weight of polylactic acid fiber and 30 parts by weight of low-melting point polylactic acid composite fiber and laminating the web formed by carding to have a surface density of 1000 g / m 2 , the felt prepared by performing a pre-heating compression process in an oven at 140 ° C. After preheating for 150 seconds in a mold having a surface temperature of 25 ℃ molded for 40 seconds at a pressure of 80kgf / cm 2 to prepare a biodegradable sound absorbing material for automobile interior having a thickness of 20mm.
<실시예 5>Example 5
실시예 4와 동일하게 진행하되, 폴리유산섬유 40 중량부, 면섬유 30 중량부 및 저융점 폴리유산복합섬유 30 중량부를 혼섬한 후에 에어레이드 공정으로 웹을 형성하여 자동차 내장용 생분해성 흡음재를 제조하였다.
Proceed in the same manner as in Example 4, 40 parts by weight of polylactic acid fiber, 30 parts by weight of cotton fiber and 30 parts by weight of low-melting point polylactic acid composite fiber were mixed to form a web by an airlaid process to prepare a biodegradable sound absorbing material for automobile interiors. .
<실시예 6><Example 6>
실시예 4와 동일하게 진행하되, 면섬유 70 중량부 및 저융점 폴리유산복합섬유 30 중량부를 혼섬한 후에 에어레이드 공정으로 웹을 형성하여 자동차 내장용 생분해성 흡음재를 제조하였다.Proceed in the same manner as in Example 4, after mixing 70 parts by weight of cotton fibers and 30 parts by weight of low-melting polylactic acid composite fiber to form a web by the airlaid process to prepare a biodegradable sound absorbing material for automobile interior.
<실시예 7><Example 7>
실시예 4와 동일하게 진행하되, 면섬유 40 중량부, 양모섬유 30 중량부 및 저융점폴리유산복합섬유 30 중량부를 혼섬한 후에 에어레이드 공정으로 웹을 형성하여 자동차 내장용 생분해성 흡음재를 제조하였다.
Proceed in the same manner as in Example 4, 40 parts by weight of cotton fibers, 30 parts by weight of wool fibers and 30 parts by weight of low-melting polylactic acid composite fiber was mixed, and then a web was formed by an airlaid process to prepare a biodegradable sound absorbing material for automobile interiors.
<비교예 2>Comparative Example 2
폴리에스터섬유 70 중량부 및 저융점 폴리에스터섬유 30 중량부를 혼섬한 후에 카딩하여 형성된 웹을 면밀도가 1000g/m2이 되도록 적층한 후에 예열압착공정을 실시하여 제조된 펠트를 150℃의 오븐에서 150초 동안 예열한 후에 표면온도가 25℃인 성형금형에서 80kgf/cm2의 압력으로 40초 동안 성형하여 20mm의 두께를 갖는 자동차 내장용 흡음재를 제조하였다.
After mixing 70 parts by weight of polyester fiber and 30 parts by weight of low-melting polyester fiber and laminating the web formed by carding to have a surface density of 1000 g / m 2 , the felt prepared by performing a pre-heat pressing process is placed in a 150 degreeC oven. After pre-heating for 2 seconds in a mold having a surface temperature of 25 ℃ molded for 40 seconds at a pressure of 80kgf / cm 2 to prepare a sound absorbing material for automobile interior having a thickness of 20mm.
<비교예 3>Comparative Example 3
비교예 2와 동일하게 진행하되, 면섬유 70 중량부와 저융점 폴리에스터섬유 30 중량부를 혼섬한 후에 에어레이드 공정으로 웹을 형성하여 자동차 내장용 흡음재를 제조하였다.
Proceed in the same manner as in Comparative Example 2, after mixing 70 parts by weight of cotton fibers and 30 parts by weight of low-melting point polyester fibers to form a web by the airlaid process to prepare a sound absorbing material for automobile interior.
전술한 실시예 4 내지 7 및 비교예 2 내지 3을 통해 제조된 자동차 내장용 생분해성 흡음재 및 자동차 내장용 흡음재의 연소성을 측정하여 아래 표 3에 나타내었다.The burnability of the biodegradable sound absorbing material for car interiors and the sound absorbing material for car interiors prepared through Examples 4 to 7 and Comparative Examples 2 to 3 was measured and shown in Table 3 below.
(단, 연소성은 FMVSS 302를 통해 측정하였으며, 시편 5매의 평균값으로 나타내었다.)
(However, the flammability was measured by FMVSS 302, expressed as the average value of five specimens.)
<표 3>TABLE 3
위에 표 3에 나타낸 것처럼 본 발명에 의해 제조된 자동차 내장용 생분해성 흡음재는 종래에 자동차 내장용 흡음재와 동등한 수준의 연소성을 갖는 것을 알 수 있다.
As shown in Table 3 above, it can be seen that the biodegradable sound absorbing material for automobile interior manufactured by the present invention has the same level of combustibility as the sound absorbing material for automobile interior.
전술한 실시예 4 내지 7 및 비교예 2 내지 3을 통해 제조된 자동차 내장용 생분해성 흡음재 및 자동차 내장용 흡음재의 수직입사 흡음율(ASTM E1050)을 측정하여 아래 표 4에 나타내었다.
The vertical incidence sound absorption rate (ASTM E1050) of the biodegradable sound absorbing material for automobile interior and the sound absorbing material for automobile interior prepared through Examples 4 to 7 and Comparative Examples 2 to 3 was measured and shown in Table 4 below.
<표 4>TABLE 4
위에 표 4에 나타낸 것처럼 본 발명에 의해 제조된 자동차 내장용 생분해성 흡음재는 종래에 자동차 내장용 흡음재와 동등한 수준의 흡음성능을 갖는 것을 알 수 있다.
As shown in Table 4 above, it can be seen that the biodegradable sound absorbing material for automobile interior manufactured by the present invention has a sound absorbing performance equivalent to that of the sound absorbing material for automobile interior.
전술한 실시예를 통해 확인한 바와 같이, 혼섬단계(S101), 웹적층단계(S103), 펠트형성단계(S105), 예열단계(S107) 및 냉각성형단계(S109)를 거쳐 제조된 자동차 내장용 생분해성 흡음재는 종래에 자동차 내장용 흡음재와 동등한 수준의 물성을 가지면서도, 폴리유산섬유와 저융점 폴리유산복합섬유 등의 생분해성 물질로 이루어져 토양에 존재하는 미생물에 의해 쉽게 분해되고, 분해과정에서 휘발성 유기물질이 배출되지 않고, 이산화탄소의 발생량은 매우 낮아 친환경적인 것을 알 수 있다.
As confirmed through the above-described embodiment, biodegradation for automobile interior manufactured through the mixing step S101, the web laminating step S103, the felt forming step S105, the preheating step S107, and the cooling molding step S109. Sex sound absorbing materials are composed of biodegradable materials such as polylactic acid fiber and low melting point polylactic acid composite fiber, while having the same physical properties as sound absorbing materials for automobile interiors, and are easily decomposed by microorganisms present in the soil and volatile during decomposition. Organic materials are not emitted, and the amount of carbon dioxide generated is very low.
S101 ; 혼섬단계
S103 ; 웹적층단계
S105 ; 펠트형성단계
S107 ; 예열단계
S109 ; 냉각성형단계S101; Interhorn stage
S103; Web stacking stage
S105; Felt Forming Step
S107; Preheating stage
S109; Cooling molding step
Claims (11)
상기 혼섬단계를 거쳐 혼섬된 섬유를 웹으로 형성하고 적층하는 웹적층단계;
상기 웹적층단계를 거쳐 형성된 웹 적층체를 펠트로 형성하는 펠트형성단계;
상기 펠트형성단계를 거쳐 제조된 펠트를 예열하는 예열단계; 및
예열된 펠트를 냉각성형하는 냉각성형단계;를 포함하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
A blending step of mixing the polylactic acid fiber and the low melting point polylactic acid composite fiber;
A web laminating step of forming and laminating the interwoven fibers into the web through the intermixing step;
A felt forming step of forming a web laminate formed through the web laminating step into a felt;
A preheating step of preheating the felt produced through the felt forming step; And
Cooling molding step of cooling the pre-heated felt; manufacturing method of the biodegradable sound absorbing material for automobile interior comprising a.
상기 혼섬단계는 폴리유산섬유 60 내지 80 중량부, 저융점 폴리유산섬유 20 내지 40 중량부를 혼섬하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method according to claim 1,
The blending step is a method for producing a biodegradable sound absorbing material for automobile interior, characterized in that the blend is made of 60 to 80 parts by weight of polylactic acid fiber, 20 to 40 parts by weight of low melting point polylactic acid fiber.
상기 폴리유산섬유는 용융온도가 170 내지 230℃인 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method according to claim 2,
The polylactic acid fiber is a method for producing a biodegradable sound absorbing material for automobile interiors, characterized in that the melting temperature is 170 to 230 ℃.
상기 저융점 폴리유산복합섬유는 코어성분인 폴리유산수지를 시스성분인 저융점폴리유산수지로 감싼 코어-시스형 복합섬유 및 폴리유산수지와 저융점폴리유산수지가 사이드 바이 사이드로 복합방사된 사이드 바이 사이드형 복합섬유로 이루어진 그룹으로부터 선택된 하나 이상을 포함하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method according to claim 2,
The low-melting point polylactic acid composite fiber is a core-sheath composite fiber wrapped with a polylactic acid resin as a core component and a low-melting point polylactic acid resin as a cis component, and a side in which the polylactic acid resin and the low-melting point polylactic acid resin are conjugated side by side. Method for producing a biodegradable sound absorbing material for automobile interior, characterized in that it comprises one or more selected from the group consisting of bi-side type composite fiber.
상기 폴리유산수지의 용융온도는 170 내지 230℃이며, 상기 저융점폴리유산수지의 용융온도는 120 내지 140℃인 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method of claim 4,
The melting temperature of the polylactic acid resin is 170 to 230 ℃, the melting temperature of the low melting point polylactic acid resin manufacturing method of a biodegradable sound absorbing material for automobile interior, characterized in that.
상기 혼섬단계는 천연섬유 60 내지 80 중량부를 더 포함하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method according to claim 2,
The blending step is a method for producing a biodegradable sound absorbing material for automobile interior, characterized in that it further comprises 60 to 80 parts by weight of natural fibers.
상기 천연섬유는 면 섬유, 케이폭 섬유, 마 섬유, 모 섬유 및 실크섬유로 이루어진 그룹으로부터 선택된 하나 이상을 포함하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method of claim 6,
The natural fiber is a method for producing a biodegradable sound absorbing material for automobile interiors, characterized in that it comprises one or more selected from the group consisting of cotton fibers, kapok fibers, hemp fibers, wool fibers and silk fibers.
상기 웹적층단계는 상기 혼섬단계를 거쳐 혼섬된 섬유를 카딩 또는 에어레이드하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method according to claim 1,
The web lamination step is a method of manufacturing a biodegradable sound absorbing material for automobile interior, characterized in that made by carding or air-laid fibers mixed through the mixing step.
상기 펠트형성단계는 상기 웹적층단계를 거쳐 형성된 웹 적층체를 예열압착하거나 니들펀칭하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method according to claim 1,
The felt forming step is a method for manufacturing a biodegradable sound absorbing material for automobile interior, characterized in that the pre-compression or needle punching the web laminate formed through the web laminating step.
상기 예열단계는 상기 펠트형성단계를 거쳐 제조된 펠트를 오븐예열하거나 금형예열하여 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.
The method according to claim 1,
The preheating step is a method of manufacturing a biodegradable sound absorbing material for automobile interiors, characterized in that the felt preformed through the felt forming step to the oven preheating or mold preheating.
상기 냉각성형단계는 표면온도가 20 내지 40℃인 금형에서 60 내지 150kgf/cm2의 압력으로 20 내지 60초 동안 이루어지는 것을 특징으로 하는 자동차 내장용 생분해성 흡음재의 제조방법.The method according to claim 1,
The cooling molding step is a method for producing a biodegradable sound absorbing material for automobile interiors, characterized in that made for 20 to 60 seconds at a pressure of 60 to 150kgf / cm 2 in a mold having a surface temperature of 20 to 40 ℃.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102619023A (en) * | 2012-03-16 | 2012-08-01 | 镇江立达纤维工业有限责任公司 | Polylactic acid composite fiber interior material and preparation method thereof |
| CN105133082A (en) * | 2015-07-24 | 2015-12-09 | 北京普利玛科技有限责任公司 | Low-melting-point sheath-core-type polylactic acid composite fiber and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102619023A (en) * | 2012-03-16 | 2012-08-01 | 镇江立达纤维工业有限责任公司 | Polylactic acid composite fiber interior material and preparation method thereof |
| US9937696B2 (en) | 2012-11-06 | 2018-04-10 | Hyundai Motor Company | Manufacturing method of high temperature resistant sound absorbing materials for vehicle |
| US9956927B2 (en) | 2012-11-06 | 2018-05-01 | Hyundai Motor Company | Manufacturing method of highly heat-resistant sound absorbing and insulating materials |
| KR20160015043A (en) * | 2014-07-30 | 2016-02-12 | 현대자동차주식회사 | Method for manufacturing for soundproofing board components having excellent sound absorbtion function |
| US9805706B2 (en) | 2014-07-30 | 2017-10-31 | Hyundai Motor Company | Method for manufacturing soundproofing board part having excellent sound absorption performance and soundproofing board part manufactured by the same |
| CN105133082A (en) * | 2015-07-24 | 2015-12-09 | 北京普利玛科技有限责任公司 | Low-melting-point sheath-core-type polylactic acid composite fiber and preparation method thereof |
| KR20190062860A (en) * | 2017-11-29 | 2019-06-07 | 주식회사 휴비스 | Thermal Bonded Nonwoven With Natural Fibers |
| KR20200136108A (en) * | 2019-05-27 | 2020-12-07 | (주)부성텍스텍 | Noise absorbent fabric and manufacturing method for the same |
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