KR101439067B1 - 흡차음재 및 이의 제조방법 - Google Patents
흡차음재 및 이의 제조방법 Download PDFInfo
- Publication number
- KR101439067B1 KR101439067B1 KR1020130159412A KR20130159412A KR101439067B1 KR 101439067 B1 KR101439067 B1 KR 101439067B1 KR 1020130159412 A KR1020130159412 A KR 1020130159412A KR 20130159412 A KR20130159412 A KR 20130159412A KR 101439067 B1 KR101439067 B1 KR 101439067B1
- Authority
- KR
- South Korea
- Prior art keywords
- nonwoven fabric
- sound absorbing
- absorbing material
- fiber
- heat
- Prior art date
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Images
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0876—Insulating elements, e.g. for sound insulation for mounting around heat sources, e.g. exhaust pipes
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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
- D04H1/4334—Polyamides
- D04H1/4342—Aromatic polyamides
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Abstract
Description
도 2는 흡차음재를 부품으로 성형하여 자동차의 소음 유발 장치에 적용시킨 예를 나타내는 개략도이다. (A)는 자동차 엔진에 적용되는 흡차음재를 성형한 사진이고, (B)는 흡차음재를 자동차의 엔진 일부에 장착시킨 예를 보여주는 사진이다.
도 3은 흡차음재를 자동차의 소음 유발 장치와 일정 거리를 두어 설치하여 적용시킨 예를 나타내는 개략도이다. (A)는 자동차의 차체 하부에 적용되는 흡차음재를 성형한 사진이고, (B)는 흡차음재를 자동차의 차체 하부에 부착시킨 예를 보여주는 사진이다.
도 4는 부직포의 밀도에 따른 흡차음재의 흡음성능을 비교한 그래프이다.
도 5는 알루미늄 차열판과 본 발명의 흡차음재에 대하여 차열성능을 비교한 그래프이다.
구 분 | 원사1 | 원사2 | 원사3 | 원사4 | 원사5 | |
원사 |
원사소재 | 아라미드 | PI | PBI | PBO | OXI-PAN |
한계산소지수 | 40 | 50 | 40 | 60 | 65 | |
내열온도 (℃x1hr) |
300 | 300 | 300 | 300 | 300 | |
내열성 |
외관 | 이상 없음 |
이상 없음 |
이상 없음 |
이상 없음 |
이상 없음 |
인장강도 (Kgf/㎠) |
200 | 220 | 200 | 210 | 210 | |
열싸이클 | 외관 | 이상 없음 |
이상 없음 |
이상 없음 |
이상 없음 |
이상 없음 |
난연성 | 자소성 | 자소성 | 자소성 | 자소성 | 자소성 | |
불연성 | 불연 | 불연 | 불연 | 불연 | 불연 |
주파수(Hz) | 흡음률 | ||||
원사1 (아라미드) |
원사2 (PI) |
원사3 (PBI) |
원사4 (PBO) |
원사5 (OXI-PAN) |
|
400 | 0.08 | 0.06 | 0.07 | 0.08 | 0.08 |
500 | 0.10 | 0.08 | 0.08 | 0.10 | 0.09 |
630 | 0.16 | 0.15 | 0.14 | 0.14 | 0.13 |
800 | 0.23 | 0.20 | 0.22 | 0.21 | 0.22 |
1000 | 0.35 | 0.29 | 0.30 | 0.34 | 0.35 |
1250 | 0.44 | 0.39 | 0.33 | 0.40 | 0.45 |
1600 | 0.59 | 0.50 | 0.49 | 0.53 | 0.57 |
2000 | 0.70 | 0.69 | 0.70 | 0.69 | 0.68 |
2500 | 0.79 | 0.75 | 0.77 | 0.74 | 0.80 |
3150 | 0.83 | 0.80 | 0.82 | 0.84 | 0.85 |
4000 | 0.86 | 0.82 | 0.85 | 0.87 | 0.88 |
5000 | 0.99 | 0.89 | 0.92 | 0.91 | 0.92 |
6300 | 0.98 | 0.93 | 0.94 | 0.94 | 0.98 |
8000 | 0.99 | 0.98 | 0.98 | 0.98 | 0.89 |
10000 | 0.98 | 0.98 | 0.99 | 0.98 | 0.99 |
주파수(Hz) |
흡음율 | ||
비교예 1 (부직포) |
비교예 2 (PI코팅된 부직포) |
실시예 1 (PI함침된 부직포) |
|
400 | 0.01 | 0.01 | 0.04 |
500 | 0.03 | 0.03 | 0.08 |
630 | 0.12 | 0.06 | 0.16 |
800 | 0.16 | 0.09 | 0.23 |
1000 | 0.26 | 0.22 | 0.34 |
1250 | 0.32 | 0.19 | 0.38 |
1600 | 0.39 | 0.27 | 0.52 |
2000 | 0.48 | 0.29 | 0.66 |
2500 | 0.64 | 0.44 | 0.78 |
3150 | 0.63 | 0.50 | 0.82 |
4000 | 0.72 | 0.70 | 0.86 |
5000 | 0.80 | 0.77 | 0.89 |
6300 | 0.78 | 0.79 | 0.98 |
8000 | 0.89 | 0.89 | 0.98 |
10000 | 0.90 | 0.96 | 0.98 |
구 분 | PI 바인더의 함량에 따른 흡차음재의 물성 비교 | ||||
바인더 함량(중량부) | 0 | 10 | 50 | 100 | 200 |
통기량(mL/㎠·s) | 500 | 370 | 350 | 320 | 210 |
인장강도 (kg/㎠) | 40 | 65 | 220 | 260 | 340 |
불연성 | 불연 | 불연 | 불연 | 불연 | 불연 |
주파수(Hz) | PI 바인더의 함량에 따른 흡차음재의 흡음율 비교 | ||||
0 중량부 | 10 중량부 | 50 중량부 | 100 중량부 | 200 중량부 | |
400 | 0.01 | 0.01 | 0.08 | 0.06 | 0.02 |
500 | 0.03 | 0.04 | 0.10 | 0.09 | 0.04 |
630 | 0.12 | 0.14 | 0.16 | 0.15 | 0.09 |
800 | 0.16 | 0.17 | 0.22 | 0.25 | 0.11 |
1000 | 0.26 | 0.26 | 0.35 | 0.29 | 0.14 |
1250 | 0.32 | 0.34 | 0.43 | 0.41 | 0.16 |
1600 | 0.39 | 0.40 | 0.58 | 0.54 | 0.23 |
2000 | 0.48 | 0.51 | 0.70 | 0.58 | 0.38 |
2500 | 0.64 | 0.68 | 0.79 | 0.67 | 0.43 |
3150 | 0.63 | 0.69 | 0.80 | 0.71 | 0.53 |
4000 | 0.72 | 0.77 | 0.86 | 0.75 | 0.53 |
5000 | 0.80 | 0.83 | 0.99 | 0.79 | 0.57 |
6300 | 0.78 | 0.88 | 0.98 | 0.80 | 0.63 |
8000 | 0.89 | 0.91 | 0.99 | 0.92 | 0.73 |
10000 | 0.90 | 0.92 | 0.98 | 0.92 | 0.80 |
구 분 | 바인더의 종류에 따른 흡차음재의 물성 비교 | ||||
바인더 수지 | 에폭시 수지 |
페놀 수지 |
우레아 수지 |
멜라민 수지 |
폴리우레탄 수지 |
내열온도(℃x1hr) | 300 | 260 | 190 | 300 | 200 |
인장강도 (kg/㎠) | 200 | 165 | 180 | 180 | 170 |
난연성 | 자소성 | 자소성 | 자소성 | 자소성 | 자소성 |
불연성 | 불연 | 불연 | 불연 | 불연 | 불연 |
Claims (26)
- 섬도 1∼15 데니어인 내열섬유의 함량이 30∼100 중량%인 부직포; 및
상기 부직포에 함침되어 부직포와 동일한 층에 위치하고 있으며, 상기 부직포의 섬유원사 표면에 분포 및 부착되어 통기홀 구조를 유지 또는 더 형성시켜 부직포 내부의 3차원 형상을 유지하도록 하는 폴리이미드 바인더;
를 포함하는 흡차음재.
- 청구항 1에 있어서,
상기 내열섬유는 한계산소지수(LOI)가 25% 이상이며 내열온도가 150℃ 이상인 것을 특징으로 하는 흡차음재.
- 청구항 2에 있어서,
상기 내열섬유는 아라미드 섬유, 산화된 폴리아크릴로니트릴(OXI-PAN) 섬유, 폴리이미드(PI)섬유, 폴리벤즈이미다졸(PBI) 섬유, 폴리벤즈옥사졸(PBO) 섬유, 금속 섬유, 탄소 섬유, 유리 섬유, 현무암 섬유, 실리카 섬유, 및 세라믹 섬유 중에서 선택된 1종 이상인 것을 특징으로 하는 흡차음재.
- 청구항 3에 있어서,
상기 내열섬유는 섬도가 1∼15 데니어이고, 원사의 길이가 20∼100 mm인 아라미드 섬유 또는 산화된 폴리아크릴로니트릴(OXI-PAN) 섬유인 것을 특징으로 하는 흡차음재.
- 청구항 1에 있어서,
상기 부직포는 두께가 3∼20 mm이고, 밀도가 100∼2000 g/㎡인 것을 특징으로 하는 흡차음재.
- 청구항 1에 있어서,
상기 폴리이미드는 중량평균분자량이 10,000∼200,000 g/mol인 것을 특징으로 하는 흡차음재.
- 청구항 1에 있어서,
상기 부직포 100 중량부에 대하여 폴리이미드 바인더가 1∼300 중량부 함침된 것을 특징으로 하는 흡차음재.
- 청구항 1에 있어서,
상기 흡차음재는 적용대상의 입체구조 형상으로 성형된 것을 특징으로 하는 흡차음재.
- 청구항 1에 있어서,
상기 흡차음재는 단일층 또는 다층으로 구성된 것을 특징으로 하는 흡차음재.
- 청구항 1 내지 9 중에서 선택된 어느 한 항에 있어서,
상기 흡차음재는 자동차용인 것을 특징으로 하는 흡차음재.
- a) 섬도 1∼15 데니어인 내열섬유의 함량이 30∼100 중량%인 부직포를 폴리아믹산이 분산된 바인더 용액에 함침하는 단계;
b) 폴리아믹산이 함침된 부직포를 바인더 용액으로부터 회수하는 단계; 및
c) 회수된 부직포를 경화하여 폴리아믹산을 폴리이미드로 전환하는 단계;
를 포함하는 청구항 1에 따른 흡차음재의 제조방법.
- 청구항 11에 있어서,
상기 b)단계 이후에 폴리아믹산이 함침된 부직포를 원하는 형상으로 제작하는 성형단계 ;
를 더 포함하여 이루어지는 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 11에 있어서,
상기 b)부직포의 회수단계는 함침된 부직포를 꺼내어 1∼20 kgf/cm2의 압력으로 압착하는 공정, 함침된 부직포를 꺼내어 70∼200℃ 온도로 가온하면서 용매를 증발시키는 공정, 또는 함침된 부직포를 꺼내어 1∼20 kgf/cm2의 압력으로 압착한 후에 70∼200℃ 온도로 가온하면서 용매를 증발시키는 공정을 포함하는 것을 특징으로 하는 고내열 흡차음재의 제조방법.
- 청구항 11, 12 또는 13에 있어서,
상기 흡차음재는 부직포 100 중량부에 대하여 폴리이미드 바인더가 1∼300 중량부 함침된 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 11에 있어서,
상기 내열섬유는 한계산소지수(LOI)가 25% 이상이며 내열온도가 150℃ 이상인 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 15에 있어서,
상기 내열섬유는 아라미드 섬유, 산화된 폴리아크릴로니트릴(OXI-PAN) 섬유, 폴리이미드(PI)섬유, 폴리벤즈이미다졸(PBI) 섬유, 폴리벤즈옥사졸(PBO) 섬유, 금속 섬유, 탄소 섬유, 유리 섬유, 현무암 섬유, 실리카 섬유, 및 세라믹 섬유 중에서 선택된 1종 이상인 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 16에 있어서,
상기 내열섬유는 섬도가 1∼15 데니어 및 원사의 길이가 20∼100 mm인 아라미드 섬유 또는 산화된 폴리아크릴로니트릴(OXI-PAN) 섬유인 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 11에 있어서,
상기 부직포는 두께가 3∼20 mm이고, 밀도가 100∼2000 g/㎡인 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 18에 있어서,
상기 부직포는 연속해서 업-다운 니들링, 다운-업 니들링, 업-다운 니들링을 통해 형성되는 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 18에 있어서,
상기 부직포는 니들 스트로크 30∼350 회/㎡로 형성되는 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 11에 있어서,
상기 폴리이미드는 중량평균분자량이 20,000∼300,000 g/mol인 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 11에 있어서,
상기 바인더 용액의 농도가 폴리아믹산 함량을 기준으로 1∼60 중량%인 것을 특징으로 하는 흡차음재의 제조방법.
- 청구항 11 또는 12에 있어서,
상기 흡차음재는 자동차용인 것을 특징으로 하는 흡차음재의 제조방법.
- ⅰ) 소음을 유발하는 장치의 입체구조를 확인하는 단계;
ⅱ) 상기 장치의 입체구조와 일부 또는 전부가 일치하도록 청구항 1 내지 9항 중에서 선택된 어느 한 항의 흡차음재를 제작 및 성형하는 단계; 및
ⅲ) 상기 흡차음재를 상기 소음 유발 장치에 인접시키는 단계;
를 포함하는 것을 특징으로 하는 소음 유발 장치의 소음 저감방법.
- 청구항 24에 있어서,
상기 장치는 모터, 엔진 또는 배기계인 것을 특징으로 하는 소음 유발 장치의 소음 저감방법.
- 청구항 24에 있어서,
상기 인접은 소음 유발 장치에 밀착시켜 체결하거나, 또는 소음 유발 장치와 일정 거리를 두어 설치하거나, 또는 소음 유발 장치에 적용되는 부품으로 성형하여 적용하는 것을 특징으로 하는 소음 유발 장치의 소음 저감방법.
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KR1020130159412A KR101439067B1 (ko) | 2013-12-19 | 2013-12-19 | 흡차음재 및 이의 제조방법 |
EP14870997.5A EP3086316B1 (en) | 2013-12-19 | 2014-02-27 | Sound absorbing and insulating material and method for manufacturing the same |
JP2016540515A JP6276860B2 (ja) | 2013-12-19 | 2014-02-27 | 吸遮音材及びその製造方法 |
CA2933589A CA2933589C (en) | 2013-12-19 | 2014-02-27 | Sound absorbing and insulating material and method for manufacturing the same |
BR112016014062-1A BR112016014062B1 (pt) | 2013-12-19 | 2014-02-27 | Material absorvente e isolante de som, método para fabricação do material absorvente e isolante de som, e, método para reduzir ruído de um dispositivo gerador de ruído |
PCT/KR2014/001601 WO2015093684A1 (ko) | 2013-12-19 | 2014-02-27 | 흡차음재 및 이의 제조방법 |
CN201480070015.3A CN105830148B (zh) | 2013-12-19 | 2014-02-27 | 吸音/隔音材料及生产其的方法 |
US15/106,099 US9805707B2 (en) | 2013-12-19 | 2014-02-27 | Sound absorbing and insulating material and method for manufacturing the same |
AU2014367635A AU2014367635B2 (en) | 2013-12-19 | 2014-02-27 | Sound-absorbing/insulating material and method for producing same |
ES14870997T ES2747843T3 (es) | 2013-12-19 | 2014-02-27 | Material de absorción y aislamiento acústicos y procedimiento para fabricar el mismo |
MX2016007828A MX359592B (es) | 2013-12-19 | 2014-02-27 | Material amortiguador y aislante de sonido y metodo para fabricar el mismo. |
RU2016129194A RU2655001C1 (ru) | 2013-12-19 | 2014-02-27 | Звукопоглощающий и изолирующий материал и способ его производства |
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JP6276860B2 (ja) | 2018-02-07 |
JP2017509909A (ja) | 2017-04-06 |
BR112016014062A2 (ko) | 2017-08-08 |
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US20170032776A1 (en) | 2017-02-02 |
US10438574B2 (en) | 2019-10-08 |
BR112016014062B1 (pt) | 2022-04-19 |
MX2016007828A (es) | 2016-09-07 |
EP3086316A1 (en) | 2016-10-26 |
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WO2015093684A1 (ko) | 2015-06-25 |
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