KR19990033520A - Sound insulation material - Google Patents
Sound insulation material Download PDFInfo
- Publication number
- KR19990033520A KR19990033520A KR1019970054894A KR19970054894A KR19990033520A KR 19990033520 A KR19990033520 A KR 19990033520A KR 1019970054894 A KR1019970054894 A KR 1019970054894A KR 19970054894 A KR19970054894 A KR 19970054894A KR 19990033520 A KR19990033520 A KR 19990033520A
- Authority
- KR
- South Korea
- Prior art keywords
- sound insulation
- weight
- sound insulating
- insulating material
- sound
- Prior art date
Links
Abstract
본 발명은 차음재료에 관한 것으로서, 더욱 상세하게는 차음재의 에틸렌비닐아세테이트 기재 고분자에 선상저밀도 폴리에틸렌을 블랜드하고 충전제로 마이카를 첨가함으로써 기재 고분자와의 상용성이 우수하여 분산상태가 양호하고 차음성능이 우수한 차음재료에 관한 것이다.The present invention relates to a sound insulating material, and more particularly, by blending a linear low density polyethylene with a ethylene vinyl acetate base polymer of a sound insulating material and adding mica as a filler, it has excellent compatibility with the base polymer, so that the dispersion state is good and the sound insulating performance is excellent. It relates to an excellent sound insulation material.
Description
본 발명은 차음재료에 관한 것으로서, 더욱 상세하게는 차음재의 에틸렌비닐아세테이트 기재 고분자에 선상저밀도 폴리에틸렌을 블랜드하고 충전제로 마이카를 첨가함으로써 기재 고분자와의 상용성이 우수하여 분산상태가 양호하고 차음성능이 우수한 차음재료에 관한 것이다.The present invention relates to a sound insulating material, and more particularly, by blending a linear low density polyethylene with a ethylene vinyl acetate base polymer of a sound insulating material and adding mica as a filler, it has excellent compatibility with the base polymer, so that the dispersion state is good and the sound insulating performance is excellent. It relates to an excellent sound insulation material.
현재 자동차 소음방지용으로 사용되는 차음재료에는 그 성능을 향상시키기 위해 차음재의 기재 고분자인 에틸렌비닐아세테이트 또는 폴리염화비닐에 충전제로서 탄산칼슘이나 황산바륨을 첨가하여 사용하고 있다.In order to improve the performance of the sound insulation materials currently used for automobile noise prevention, calcium carbonate or barium sulfate is added to ethylene vinyl acetate or polyvinyl chloride, which is a base polymer of sound insulation materials, as a filler.
그러나, 차음성능을 향상시키기 위해 50 ∼ 60 중량% 정도로 과량의 충전제를 함유하고 있어 분산상태가 일정하지 않아 취급시 크렉이 발생하거나 찢어지는 문제가 있었다.However, in order to improve the sound insulation performance, the filler contains an excessive amount of about 50 to 60% by weight, so that the dispersion state is not constant, causing cracking or tearing during handling.
본 발명은 상기와 같은 종래 차음재료의 문제점을 해결하기 위하여 에틸렌비닐아세테이트 기재 고분자와의 상용성이 양호하고 기계적 물성도 우수한 선상저밀도 폴리에틸렌을 블랜드하고 충전제로서 제진성능을 부여할 수 있는 종횡비가 양호한 마이카를 첨가하므로써 차음성능을 향상시킨 차음재료를 제공하는데 그 목적이 있다.In order to solve the problems of the conventional sound insulating material as described above, the mica is a good mica and good aspect ratio that can blend the low-density polyethylene with excellent mechanical properties and excellent vibration damping performance as a filler. It is an object of the present invention to provide a sound insulation material having improved sound insulation performance by adding.
도 1은 본 발명 실시예 및 비교예에 따라 제조된 차음재료의 주파수에 따른 투과손실율을 측정하여 차음성능을 비교한 그래프이다.1 is a graph comparing the sound insulation performance by measuring the transmission loss ratio according to the frequency of the sound insulating material prepared according to the Examples and Comparative Examples of the present invention.
본 발명은 에틸렌비닐아세테이트 기재 고분자 25 ∼ 35 중량%, 저밀도선상폴리에틸렌 15 ∼ 25 중량%, 황산바륨 및 탄산칼슘 중에서 선택된 1종 이상의 것 50 ∼ 60 중량% 및 마이카로 이루어진 차음재료에 그 특징이 있다.The present invention is characterized by a sound insulating material comprising 25 to 35% by weight of an ethylene vinyl acetate based polymer, 15 to 25% by weight of low density linear polyethylene, 50 to 60% by weight of at least one selected from barium sulfate and calcium carbonate, and mica. .
이와 같은 본 발명을 더욱 상세하게 설명하면 다음과 같다.The present invention will be described in more detail as follows.
본 발명에서는 기재 고분자로서 에틸렌비닐아세테이트를 사용하는 바, 이는 수지 공급이 원활하며, 각종 충전제와의 혼용성이 양호한 특성을 갖는 것으로 전체 재료중 20 ∼ 30 중량%인 것이 바람직하다. 만일, 그 함량이 20 중량% 미만이면 충전제와 혼용성이 양호하지 않고 제품으로서의 상품성이 저하하며 30 중량%를 초과하는 경우 차음제로서 효과가 저하되는 문제가 있다.In the present invention, ethylene vinyl acetate is used as the base polymer, and the resin is smoothly supplied and has good compatibility with various fillers. It is preferably 20 to 30% by weight of the whole material. If the content is less than 20% by weight, there is a problem that the compatibility with the filler is not good, the commerciality as a product is lowered, and when the content exceeds 30% by weight, the effect as a sound insulation is lowered.
그리고, 여기에 기재 고분자와의 상용성을 고려하여 선상저밀도 폴리에틸렌(Linear Low Density Polyethylene)을 블랜드하는데, 그 함량은 전체 차음재료 중 10 ∼ 20 중량%인 것이 바람직하다. 만일, 그 함량이 10 중량% 미만이면 매트릭스 수지인 에틸렌비닐아세테이트와 충전제와의 혼용성이 저하하고, 20 중량%를 초과하는 경우 차음특성이 저하할 수가 있다.In addition, in consideration of compatibility with the base polymer, linear low density polyethylene (Linear Low Density Polyethylene) is blended, the content of which is preferably 10 to 20% by weight of the total sound insulating material. If the content is less than 10% by weight, the compatibility of the ethylene vinyl acetate and the filler, which is a matrix resin, may be lowered, and when it exceeds 20% by weight, the sound insulation characteristics may be lowered.
한편, 본 발명에서는 종래 차음효과를 향상시키기 위해 첨가되어 오던 탄산칼슘이나 황산바륨을 전체 차음재료 중 50 ∼ 60 중량% 함유한다. 만일, 그 함량이 50 중량% 미만이면 차음효과가 떨어지고, 60 중량%를 초과하는 경우 충전제의 분산상태가 양호하지 않아 취급시 크랙이 발생하거나 찢어질 우려가 있다.On the other hand, in the present invention, 50 to 60% by weight of calcium carbonate and barium sulfate, which have been added in order to improve the sound insulation effect in the prior art, are contained. If the content is less than 50% by weight, the sound insulation is inferior, and when the content exceeds 60% by weight, the filler is not dispersed well and there is a risk of cracking or tearing during handling.
또한, 본 발명에서는 종회비(Aspect Ratio)가 타 충전제와 비교하여 우수한 마이카를 첨가하여 차음재료에 제진성능을 부여하도록 하는데, 그 함량은 전체 차음재료 중 5 ∼ 10 중량%이다. 왜냐하면, 그 함량이 5 중량% 미만이면 차음특성에 있어서 효과가 적고, 10 중량%를 초과하는 경우 제조공정중에 마이카가 부스러져 효과를 볼 수 없을 수 있기 때문이다.In addition, in the present invention, the aspect ratio is higher than that of other fillers to add mica to provide vibration damping performance to the sound insulating material, the content of which is 5 to 10% by weight of the total sound insulating material. Because, if the content is less than 5% by weight is less effective in sound insulation properties, when the content is more than 10% by weight mica may be broken during the manufacturing process can not see the effect.
그밖에 보강제로서 카본이나 아스팔트 피치 등이 차음재료로 구성될 수 있다.In addition, as the reinforcing agent, carbon, asphalt pitch, and the like may be composed of sound insulating materials.
이와 같은 차음재료를 성형시에는 일반적으로 카렌더 공법 또는 "T"형 다이에 의한 압출성형공법이 사용되나, 생산속도를 향상하기 위하여 카렌더(calender) 공법으로 성형하는 것이 바람직하다.In the molding of the sound insulating material, generally, a calendering method or an extrusion molding method using a “T” type die is used. However, it is preferable to form the calendering method in order to improve the production speed.
이하, 본 발명을 실시예에 의거하여 상세히 설명하면 다음과 같은 바, 본 발명이 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to the following Examples, but the present invention is not limited by the Examples.
실시예 1 ∼ 3 및 비교예 1 ∼ 2Examples 1-3 and Comparative Examples 1-2
다음 표 1에 나타낸 바와 같은 조성 및 함량으로 차음재료를 조성하고 카렌더에 의한 방법으로 차음재료를 제조하여 시편을 제조하였다.Next, the sound insulating material was prepared in the composition and content as shown in Table 1, and the specimen was prepared by preparing the sound insulating material by a calender method.
제조된 시편에 대하여 비중, 인장강도, 신율 및 성형성을 측정하였으며, 그 결과를 다음 표 1에 나타내었다.Specific gravity, tensile strength, elongation and formability were measured for the prepared specimens, and the results are shown in Table 1 below.
여기서, 비중, 인장강도, 신율은 시편두께 2.0㎜이고 시험속도 200㎜/분으로하여 JIS K6301에 의거하여 측정하였다.Here, specific gravity, tensile strength, and elongation were measured according to JIS K6301 at a specimen thickness of 2.0 mm and a test speed of 200 mm / minute.
그리고, 성형성은 제품성형이 진공성형으로 이루어지고 있으며, 이때 성형품의 찢어짐을 육안으로 확인하였다.In addition, the moldability of the product molding is made by vacuum molding, wherein the tearing of the molded product was visually confirmed.
한편, 차음성능에 대하여 주파수에 따른 투과손실을 측정하여 그 결과를 도 1에 나타내었다.On the other hand, the transmission loss according to the frequency for the sound insulation performance is shown in Figure 1 the results.
본 발명에 따른 차음재료는 성형성이 양호하고 기계적 물성도 우수할 뿐만 아니라 차음성능이 우수하여 자동차의 소음방지용 차음재료로서 유용하게 사용될 수 있다. 또한, 저온에서도 유연하고 작업성이 용이할 뿐만 아니라, 전 주파수 영역에 걸쳐 약 20 % 정도의 차음효과가 있으며, 특히 100 ∼ 1,000 Hz 영역에서 그 차음효과가 크다.The sound insulation material according to the present invention is not only excellent in moldability and mechanical properties, but also excellent in sound insulation performance, and thus may be usefully used as a sound insulation material for preventing noise of automobiles. In addition, it is not only flexible and easy to work at low temperatures, but also has a sound insulation effect of about 20% over the entire frequency range, particularly in the 100 to 1,000 Hz region.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970054894A KR19990033520A (en) | 1997-10-24 | 1997-10-24 | Sound insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970054894A KR19990033520A (en) | 1997-10-24 | 1997-10-24 | Sound insulation material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19990033520A true KR19990033520A (en) | 1999-05-15 |
Family
ID=66047454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970054894A KR19990033520A (en) | 1997-10-24 | 1997-10-24 | Sound insulation material |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19990033520A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100545030B1 (en) * | 2002-09-13 | 2006-01-24 | 헨켈코리아 주식회사 | Foaming composition for protecting noise in body frames of vehicles |
-
1997
- 1997-10-24 KR KR1019970054894A patent/KR19990033520A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100545030B1 (en) * | 2002-09-13 | 2006-01-24 | 헨켈코리아 주식회사 | Foaming composition for protecting noise in body frames of vehicles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6162548A (en) | Cables with a halogen-free recyclable coating comprising polypropylene and an ethylene copolymer having high elastic recovery | |
| EP0279414B1 (en) | Rubber composition and the use thereof for the production of an oil seal or a rubber hose | |
| US4812505A (en) | Tree resistant compositions | |
| JP3334052B2 (en) | Compounded ethylene / α-olefin elastomer compound | |
| US6472042B1 (en) | Highly filled thermoplastic compositions | |
| KR101180874B1 (en) | Thermoplastic vulcanizates composition having improved foaming formability, and molded article manufactured therefrom | |
| CN107722448B (en) | Composite composition for automotive interior material using natural fiber | |
| KR101077697B1 (en) | - rheology-modified thermoplastic elastomer compositions for extruded profiles | |
| WO1988008015A1 (en) | Thermoplastic elastomer composition | |
| IE51489B1 (en) | Filled and plasticized blends of linear low density polyethylene | |
| US4533680A (en) | Thermoplastic resin composition for molding | |
| CA1181887A (en) | Thermoplastic molding composition including polycarbonate, multiphase composite acrylate interpolymer and polyolefin | |
| US5231128A (en) | Ethylene propylene rubber composition | |
| EP0340785B1 (en) | Stabilization of crosslinked very low density polyethylene (VLDPE) | |
| US4745156A (en) | Thermoplastic resin compositions | |
| JP3428092B2 (en) | Thermoplastic elastomer composition | |
| KR19990033520A (en) | Sound insulation material | |
| US6809125B1 (en) | Foam comprising polyolefin blend and method for producing same | |
| KR100232377B1 (en) | A resin composition used for interior decoration and soundproofing materials | |
| JP3177654B2 (en) | Vibration energy absorber | |
| EP0351736B1 (en) | Compositions for water-proof sheets | |
| US5192420A (en) | Vibration damper obtained by adjusting the resin and aromatic components of the asphalt base | |
| JPS645063B2 (en) | ||
| KR100216424B1 (en) | The soundproof composition | |
| KR100199592B1 (en) | Resin compositions of polypropylene |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |