KR101941561B1 - Manufacturing method of reduction materials of floor impact sound - Google Patents
Manufacturing method of reduction materials of floor impact sound Download PDFInfo
- Publication number
- KR101941561B1 KR101941561B1 KR1020170074031A KR20170074031A KR101941561B1 KR 101941561 B1 KR101941561 B1 KR 101941561B1 KR 1020170074031 A KR1020170074031 A KR 1020170074031A KR 20170074031 A KR20170074031 A KR 20170074031A KR 101941561 B1 KR101941561 B1 KR 101941561B1
- Authority
- KR
- South Korea
- Prior art keywords
- weight
- parts
- composition
- impact sound
- mixed
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
-
- 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
- B32B5/18—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 features of a layer of foamed material
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/08—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers using foamed adhesives
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/203—Separately-laid layers for sound insulation
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0221—Vinyl resin
- B32B2266/0228—Aromatic vinyl resin, e.g. styrenic (co)polymers
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
- E04F2290/043—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a bottom layer for sound insulation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
본 발명은 층간 소음 완충재의 제조 방법에 관한 것으로, 보다 구체적으로는 EVA(ethylene-vinyl acetate copolymer)와 무수말레인산이 그라프트된 폴리에틸렌(maleic anhydride grafted polyethylene)을 기재로 하는 경량 충격음 저감 발포체용 조성물과 접착층 발포체용 조성물, 그리고 부분 수첨 스티렌 부타디엔 블록 공중합체(partially hydrogenated styrene butadiene block copolymer)와 무수말레인산이 그라프트된 폴리에틸렌을 기재로 하는 중량 충격음 저감 발포체용 조성물을 적층하고 이를 일체로 성형하여 완충재를 제조함으로써, 일반적인 완충재에 비해 경량 충격음 뿐만 아니라 중량 충격음을 크게 저감시킬 수 있도록 하는, 층간 소음 완충재의 제조 방법에 관한 것이다.More particularly, the present invention relates to a composition for lightweight impact sound reduction foam based on ethylene-vinyl acetate copolymer (EVA) and maleic anhydride grafted polyethylene A composition for an adhesive layer foam and a composition for a heavy impact sound reducing foam based on a partially hydrogenated styrene butadiene block copolymer and a polyethylene grafted with maleic anhydride are laminated and integrally molded to prepare a cushioning material Thereby making it possible to significantly reduce the weight impact sound as well as the light impact sound compared with a general shock absorber.
Description
본 발명은 일반적인 완충재에 비해 경량 충격음 뿐만 아니라 중량 충격음을 크게 저감시킬 수 있도록 하는, 층간 소음 완충재의 제조 방법에 관한 것이다.The present invention relates to a method of manufacturing an inter-layer noise cushioning material, which is capable of significantly reducing a weight impact sound as well as a lightweight impact sound as compared with a general cushioning material.
일반적으로 공통주택 건설시 완충재를 적용한 뜬바닥(floating floor)공법이 시공되고 있다. 뜬바닥 공법은 도 1에 도시된 바와 같이, 완충재를 바닥슬래브와 상부 바닥 구성층 사이에 설치함으로써 충격진동 에너지를 구조체로 가능한 전달되지 않도록 하는 방법이다.Generally, floating floor construction method using cushioning materials is being applied in the construction of common houses. The floated bottom method is a method for preventing the transmission of impact vibration energy to the structure as possible by installing a cushioning material between the floor slab and the upper floor construction layer, as shown in Fig.
한편, 층간소음이란 물건의 낙하, 어린이들이 뛰는 등에 의해 발생한 충격이 바닥에 가해지면 바닥의 슬래브가 진동하여 공기 중에 음으로 발생되는 것으로서 경량충격음과 중량충격음으로 구분하여 측정한다.On the other hand, the interlayer noise refers to the sound generated by the vibration of the floor slab when the impact generated by the falling of the object or the beating of the child is applied to the floor, and is divided into the light impact sound and the heavy impact sound.
상기 경량충격음은 작은 물건의 낙하, 하이힐소리, 가구의 이동시 바닥에 가해지는 소리 등에 의해 아래층에 전달되는 고주파 음역의 음으로써 충격력이 작고 지속시간이 짧은 반면에 중량충격음은 어린이가 뛰거나 달릴 때의 무거운 충격에 의해 아래층에서 발생되는 저음역의 음으로써 충격력이 크고 지속시간이 길다.The light impact sound is a sound of a high frequency range transmitted to the lower layer due to falling of a small object, sound of a high heel, sound that is applied to the floor when moving furniture, and the impact force is small and the duration is short. On the other hand, It is a bass sound generated in the lower layer due to a heavy impact, which has a large impact force and a long duration.
한편, 도 2에 도시된 바와 같이 뜬바닥 공법은 경량충격음 감소 효과는 아주 우수하나, 중량충격음에 대해서는 저주파대역에서 오히려 불리해지는 양상이 나타난다. 이는 상부 온돌층과 하부 콘크리트 슬래브 간의 강체모드 진동으로 인하여 저주파대역에서의 진동량을 증가시키기 때문이다.On the other hand, as shown in FIG. 2, the floating floor method has a very good light weight impact sound reduction effect, but the heavy impact sound is rather disadvantageous in a low frequency band. This is because the rigid mode vibration between the upper Ondol layer and the lower concrete slab increases the amount of vibration in the low frequency band.
중량 충격음은 마감재보다는 바닥슬래브의 강성, 면적, 경계조건, 완충재 등에 의해 좌우되는데 현실적으로 슬래브를 변화시키기 어려운 점을 감안한다면 바닥충격음을 감소시킬 수 있는 가장 적절한 부위는 완충재라 할 수 있다.The weighted impact sound is dominated by the stiffness, area, boundary conditions, and cushioning material of the floor slab rather than the finishing material, but considering the difficulty of changing the slab in reality, the most suitable place to reduce the floor impact sound is the cushioning material.
현재 많이 사용되고 있는 완충재의 재질은 특허문헌 1에서와 같이 EPS(expandable polystyrene)발포체와 EVA(ethylene-vinyl acetate copolymer)발포체로 EPS가 약 70%, EVA가 약 20 ~ 30%, 그리고 PE 또는 PU 재질이 10% 내외로 사용되고 있다. LH와 한국건설기술연구원에서 바닥충격음과 관련하여 인정바닥구조로서 인정받은 128개 바닥구조에 대한 등급별 분포를 살펴보면, 경량충격음의 경우 1, 2등급이 전체 인정바닥구조의 90% 이상을 차지하고 있는 반면 중량충격음의 경우에는 3, 4등급이 전체 인정바닥구조의 80% 이상을 차지하고 있는 것으로 보아 EPS와 EVA만으로는 성능확보가 용이하지 않다는 것을 알 수 있다.The material of the cushioning material which is widely used now is EPS (expandable polystyrene) foam and EVA (ethylene-vinyl acetate copolymer) foam, about EPS 70%, EVA 20 ~ 30% and PE or PU material Is about 10%. LH and Korea Institute of Construction Technology showed that 128 floor structures recognized as bottom floor structure in relation to floor impact sound are classified by grade 1 and 2 in light weight impact sound more than 90% In the case of heavy-weight impact sound, grades 3 and 4 account for more than 80% of the total floor area.
이러한 문제점에 대한 해결 방안의 하나로서 완충구조의 감쇠효과를 높일 수 있는 방안에 대한 개발이 필요하다는 의견이 제안되고 있지만 현재 사용되고 있는 EPS와 EVA 같은 완충재는 감쇠효과가 매우 미흡한 실정이다. As a solution to this problem, it is proposed that a method of improving the damping effect of the buffer structure is required, but the damping effect of the currently used cushioning materials such as EPS and EVA is insufficient.
따라서, 본 발명의 발명자들은 공동주택 등과 같은 건축물의 층간에 발생되는 중량 충격음을 감소시킬 수 있도록 기능성 고분자 매트릭스를 기반으로 저주파대역에서 감쇠를 가지는 발포체를 개발하고 이를 기존의 경량충격음 감소형 발포체와 조합해 다양한 주파수대역에서 대응 가능한 이원계 구조의 완충재를 개발함으로써, 본 발명을 완성하였다.Accordingly, the inventors of the present invention have developed a foam having a damping in a low frequency band based on a functional polymer matrix so as to reduce a heavy impact sound generated between the layers of a building such as a dwelling house, The present inventors have completed the present invention by developing a cushioning material having a binary structure capable of coping with various frequency bands.
본 발명은 EVA(ethylene-vinyl acetate copolymer)와 무수말레인산이 그라프트된 폴리에틸렌(maleic anhydride grafted polyethylene)을 기재로 하는 경량 충격음 저감 발포체용 조성물과 접착층 발포체용 조성물, 그리고 부분 수첨 스티렌 부타디엔 블록 공중합체(partially hydrogenated styrene butadiene block copolymer)와 무수말레인산이 그라프트된 폴리에틸렌을 기재로 하는 중량 충격음 저감 발포체용 조성물을 상호 적층하고 이를 일체로 성형하여 완충재를 제조함으로써, 일반적인 완충재에 비해 경량 충격음 뿐만 아니라 중량 충격음을 크게 저감시킬 수 있도록 함을 과제로 한다.The present invention relates to a composition for lightweight impact noise reducing foams based on ethylene-vinyl acetate copolymer (EVA) and maleic anhydride grafted polyethylene, a composition for an adhesive layer foam, and a partially hydrogenated styrene butadiene block copolymer a partially hydrogenated styrene butadiene block copolymer) and a polyethylene grafted with maleic anhydride grafted thereon are laminated one upon the other and molded into a single piece to form a cushioning material. As a result, not only a lightweight impact sound but also a heavy impact sound So that it can be greatly reduced.
삭제delete
삭제delete
삭제delete
삭제delete
본 발명은 층간 소음 완충재의 제조방법에 있어서, 부분 수첨 스티렌 부타디엔 블록 공중합체 70 ~ 90 중량% 및 무수말레인산이 그라프트된 폴리에틸렌 10 ~ 30 중량%로 이루어지는 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 경질 탄산칼슘 5 ~ 30 중량부를 10 ~ 100℃의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.4 ~ 1.0 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 중량 충격음 저감 발포체용 조성물을 제조하는 단계(S100); VA 함량 12 ~ 28 중량%인 EVA 30 ~ 50 중량% 및 무수말레인산이 그라프트된 폴리에틸렌 50 ~ 70 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부를 10 ~ 100℃의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.6 ~ 1.4 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 접착층 발포체용 조성물을 제조하는 단계(S200); VA 함량 12 ~ 28 중량%인 EVA 70 ~ 90 중량%와 무수말레인산이 그라프트된 폴리에틸렌 10 ~ 30 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 경질 탄산칼슘 5 ~ 30 중량부를 10 ~ 100℃의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.6 ~ 1.4 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 경량 충격음 저감 발포체용 조성물을 제조하는 단계(S300); 및 150 ~ 160℃로 가열된 금형에 상기 경량 충격음 저감 발포체용 조성물, 접착층 발포체용 조성물 및 중량 충격음 저감 발포체용 조성물을 사출하여 적층한 후, 120 ~ 180 kgf/cm2의 압력으로 30 ~ 40분간 프레스한 후 압력을 제거하여 완충재를 제조하는 단계(400)를 포함하여 이루어지는 것을 특징으로 하는, 층간 소음 완충재의 제조방법을 과제의 해결 수단으로 한다.The present invention relates to a method for producing an interlayer noise damping material, which comprises mixing 100 parts by weight of zinc oxide with 100 parts by weight of a base material comprising 70 to 90% by weight of a partially hydrogenated styrene butadiene block copolymer and 10 to 30% by weight of polyethylene having a maleic anhydride grafted therein, 0.5 to 5 parts by weight of stearic acid and 5 to 30 parts by weight of hard calcium carbonate are mixed in a closed mixer at 10 to 100 DEG C, 0.4 to 1.0 part by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent are mixed in a roll mill, A step (S100) of preparing a composition for an impact noise reducing foam; 2 to 10 parts by weight of zinc oxide and 0.5 to 5 parts by weight of stearic acid are added to 100 parts by weight of a base composed of 30 to 50% by weight of EVA having a VA content of 12 to 28% by weight and 50 to 70% by weight of polyethylene having grafted maleic anhydride, 0.6 to 1.4 parts by weight of a crosslinking agent in a roll mill and 4 to 10 parts by weight of a foaming agent are mixed and mixed in a closed type mixer at 10 to 100 캜 to prepare a composition for an adhesive layer foam (S200); 2 to 10 parts by weight of zinc oxide and 0.5 to 5 parts by weight of stearic acid are added to 100 parts by weight of a base composed of 70 to 90% by weight of EVA having a VA content of 12 to 28% by weight and 10 to 30% by weight of polyethylene having grafted maleic anhydride, And 5 to 30 parts by weight of hard calcium carbonate are mixed in a closed type mixer at 10 to 100 ° C and then 0.6 to 1.4 parts by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent are added and mixed in a roll mill to prepare a composition for lightweight impact sound- S300); And 150 to a composition for the in mold weight impact sound reduction foam heated to 160 ℃, the adhesive layer after the foam composition and by weight of impact sound reduction emitted by laminating a foam composition for, at a pressure of 120 ~ 180 kgf / cm 2 30 ~ 40 bungan And a step (400) of pressing to remove the pressure to produce a cushioning material. The present invention also provides a method of manufacturing an interlayer noise damping material.
본 발명에 따른 층간 소음 완충재는 일반적인 완충재에 비해 경량 충격음 뿐만 아니라 중량 충격음을 크게 저감시킬 수 있는 효과가 있다.The interlayer noise cushioning material according to the present invention has the effect of significantly reducing a weight impact sound as well as a lightweight impact sound as compared with a general cushioning material.
도 1 일반적인 뜬바닥 구조를 나타낸 단면도
도 2 일반적인 뜬바닥 공법의 충격음 차단 성능을 나타낸 그래프
도 3은 본 발명에 따른 층간 소음 완충재의 구조를 나타낸 개략도
도 4는 본 발명에 따른 층간 소음 완충재의 제조방법을 나타낸 공정 흐름도Fig. 1 is a sectional view showing a general floated structure
Fig. 2 is a graph showing the impact sound blocking performance of a general floating floor method
3 is a schematic view showing the structure of an interlayer noise cushioning material according to the present invention;
FIG. 4 is a flow chart illustrating a method of manufacturing an interlayer noise cushioning material according to the present invention.
상기의 효과를 달성하기 위한 본 발명은 층간 소음 완충재의 제조 방법에 관한 것으로서, 본 발명의 기술적 구성을 이해하는데 필요한 부분만이 설명되며 그 이외 부분의 설명은 본 발명의 요지를 흩트리지 않도록 생략될 것이라는 것을 유의하여야 한다.In order to achieve the above-mentioned effects, the present invention relates to a method for manufacturing an interlayer noise damping material, wherein only the parts necessary for understanding the technical structure of the present invention are explained, and the description of other parts is omitted so as not to disturb the gist of the present invention .
이하, 본 발명에 따른 층간 소음 완충재의 제조 방법을 상세히 설명하면 다음과 같다.Hereinafter, a method of manufacturing the interlayer noise damping material according to the present invention will be described in detail.
본 발명에 따른 층간 소음 완충재는 도 3에 도시된 바와 같이, 경량 충격음 저감 발포체용 조성물, 접착층 발포체용 조성물 및 중량 충격음 저감 발포체용 조성물이 일체로 성형되어 이루어지는 것을 특징으로 한다.As shown in FIG. 3, the present invention is characterized in that a composition for a lightweight impact sound reducing foam, a composition for an adhesive layer foam, and a composition for a heavy impact sound reducing foam are integrally molded.
구체적으로 상기 중량 충격음 저감 발포체용 조성물은, 부분 수첨 스티렌 부타디엔 블록 공중합체(partially hydrogenated styrene butadiene block copolymer) 70 ~ 90 중량% 및 무수말레인산이 그라프트된 폴리에틸렌(maleic anhydride grafted polyethylene) 10 ~ 30 중량%로 이루어지는 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 경질 탄산칼슘 5 ~ 30 중량부, 가교제 0.4 ~ 1.0 중량부 및 발포제 4 ~ 10 중량부가 혼합되어 이루어진다.Specifically, the composition for a heavy impact sound reducing foam comprises 70 to 90% by weight of a partially hydrogenated styrene butadiene block copolymer and 10 to 30% by weight of a maleic anhydride grafted polyethylene, 2 to 10 parts by weight of zinc oxide, 0.5 to 5 parts by weight of stearic acid, 5 to 30 parts by weight of hard calcium carbonate, 0.4 to 1.0 part by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent are mixed with 100 parts by weight of the base material.
여기서, 부분 수첨 스티렌 부타디엔 블록 공중합체는 일본 Asahi-kasei elastomer 사에서 판매(제품명 : S.O.E)되고 있는 공지된 물질이고, 무수말레인산이 그라프트된 폴리에틸렌 역시 미국 Dupont 사에서 판매(제품명 : Fusabond)되고 있는 공지된 물질이다. 아울러 상기 부분 수첨 스티렌 부타디엔 블록 공중합체를 제외하고는 경량 충격음 저감 발포체와의 가교속도 차이로 인해 그 사용이 적합하지 않다. 즉, 경량 충격음 저감 발포체와의 가교속도 차이를 고려해 부분 수첨 스티렌 부타디엔 블록 공중합체를 사용하는 것이 바람직하다.Here, the partially hydrogenated styrene-butadiene block copolymer is a known material sold by Asahi-kasei elastomer, Japan (product name: SOE), and the polyethylene grafted with maleic anhydride is also sold by Dupont, Inc. (product name: Fusabond) Lt; / RTI > In addition, except for the partially hydrogenated styrene butadiene block copolymer, its use is not suitable due to the difference in the crosslinking speed with the lightweight impact sound reducing foam. That is, it is preferable to use a partially hydrogenated styrene-butadiene block copolymer in consideration of the difference in crosslinking speed with the lightweight impact noise reducing foam.
한편, 상기 부분 수첨 스티렌 부타디엔 블록 공중합체의 함량이 70 중량% 미만이고 무수말레인산이 그라프트된 폴리에틸렌의 함량이 30 중량%를 초과할 경우 중량 충격음 저감 효과가 미비해질 우려가 있고, 부분 수첨 스티렌 부타디엔 블록 공중합체의 함량이 90 중량%를 초과하고 무수말레인산이 그라프트된 폴리에틸렌의 함량이 10 중량% 미만일 경우 접착층과의 일체화가 어려워질 우려가 있다.On the other hand, when the content of the partially hydrogenated styrene butadiene block copolymer is less than 70% by weight and the content of polyethylene grafted with maleic anhydride exceeds 30% by weight, there is a possibility that the effect of reducing the heavy impact sound is insufficient. If the content of the block copolymer exceeds 90% by weight and the content of the maleic anhydride-grafted polyethylene is less than 10% by weight, integration with the adhesive layer may become difficult.
그리고 상기 접착층 발포체용 조성물은, VA 함량 12 ~ 28 중량%인 EVA(ethylene-vinyl acetate copolymer) 30 ~ 50 중량% 및 무수말레인산이 그라프트된 폴리에틸렌 50 ~ 70 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 가교제 0.6 ~ 1.4 중량부 및 발포제 4 ~ 10 중량부가 혼합되어 이루어진다.The composition for the adhesive layer foam comprises 100 parts by weight of a substrate made of 30 to 50% by weight of an ethylene-vinyl acetate copolymer (EVA) having a VA content of 12 to 28% by weight and 50 to 70% by weight of a maleic anhydride- 2 to 10 parts by weight of zinc oxide, 0.5 to 5 parts by weight of stearic acid, 0.6 to 1.4 parts by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent.
여기서, 상기 무수말레인산이 그라프트된 폴리에틸렌의 함량이 50 중량% 미만이고 EVA의 함량이 50 중량%를 초과할 경우, 중량 충격음 저감 발포체용 조성물 및 경량 충격음 저감 발포체용 조성물과의 일체화가 어려워질 우려가 있고, 상기 무수말레인산이 그라프트된 폴리에틸렌의 함량이 70 중량%를 초과하고 EVA 함량이 30 중량% 미만일 경우, 발포체 제조가 어려워질 우려가 있다.Here, when the content of the maleic anhydride grafted polyethylene is less than 50% by weight and the content of EVA is more than 50% by weight, it may be difficult to integrate the composition for heavy impact sound reduction foam and the composition for lightweight impact sound reducing foam And when the content of the maleic anhydride-grafted polyethylene exceeds 70% by weight and the EVA content is less than 30% by weight, there is a fear that the production of foam becomes difficult.
또한 상기 경량 충격음 저감 발포체용 조성물은, VA 함량 12 ~ 28 중량%인 EVA 70 ~ 90 중량%와 무수말레인산이 그라프트된 폴리에틸렌 10 ~ 30 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 경질 탄산칼슘 5 ~ 30 중량부, 가교제 0.6 ~ 1.4 중량부 및 발포제 4 ~ 10 중량부가 혼합되어 이루어진다.The composition for a lightweight impact sound reducing foam of the present invention is characterized by comprising 100 parts by weight of a base material composed of 70 to 90% by weight of an EVA having a VA content of 12 to 28% by weight and 10 to 30% by weight of a polyethylene grafted with maleic anhydride, 0.5 to 5 parts by weight of stearic acid, 5 to 30 parts by weight of hard calcium carbonate, 0.6 to 1.4 parts by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent.
여기서, 상기 EVA의 함량이 70 중량% 미만이고 무수말레인산이 그라프트된 폴리에틸렌의 함량이 30 중량%를 초과할 경우, 발포체 제조가 어려워질 우려가 있고, 상기 EVA의 함량이 90 중량%를 초과하고 무수말레인산이 그라프트된 폴리에틸렌의 함량이 10 중량% 미만일 경우, 접착층과의 일체화가 어려워질 우려가 있다.If the EVA content is less than 70% by weight and the maleic anhydride grafted polyethylene content is more than 30% by weight, it may be difficult to produce a foam, and when the EVA content exceeds 90% by weight If the content of the maleic anhydride grafted polyethylene is less than 10% by weight, integration with the adhesive layer may become difficult.
한편, 상기 각 조성물에 사용된 산화아연, 스테아린산, 경질 탄산칼슘, 가교제(펄옥사이드계 가교제 등) 및 발포제(아조디카르본아미드계 발포제 등)는 이 기술분야에서 통상적으로 사용되는 발포체용 첨가제로써 이러한 기재나 발포체용 첨가제의 종류 및 함량은 해당 조성물의 사용 목적, 용도, 환경 등에 따라 매우 가변적일 수 있고 또한 이미 널리 사용되고 있으므로 특정 종류나 함량으로 한정하지는 않는다. 즉, 이미 공지된 다양한 기재 및 발포에용 첨가제를 선택적으로 사용할 수 있다. 단, 발포제의 경우 각각의 조성물의 발포 배율이 동일하게 발포될 수 있도록 그 함량을 조절하는 것이 바람직하며, 발포배율이 동일하지 않을 경우 발포체가 휘어지거나 비틀어지게 될 우려가 있다.On the other hand, zinc oxide, stearic acid, light calcium carbonate, a crosslinking agent (such as a peroxide-based crosslinking agent) and a foaming agent (such as an azodicarbonamide-based foaming agent) used in the respective compositions are additives for foams commonly used in the art. The type and content of the additive for the substrate or the foam may be very variable depending on the use purpose, the use, the environment, etc. of the composition and are not limited to a specific kind or content because they are widely used. That is, various additives already known and additives for foaming can be selectively used. However, in the case of the foaming agent, it is preferable to control the content of the foaming agent so that the foaming ratio of each composition can be equalized. If the foaming ratio is not the same, the foam may be warped or twisted.
한편, 본 발명에 따른 층간 소음 완충재의 제조방법은 도 4에 도시된 바와 같이, 중량 충격음 저감 발포체용 조성물을 제조하는 단계(S100)와, 접착층 발포체용 조성물을 제조하는 단계(S200)와, 경량 충격음 저감 발포체용 조성물을 제조하는 단계(S300) 및, 상기 각 조성물을 적층하고 일체로 성형하여 완충재를 제조하는 단계(S400)를 포함하여 이루어진다.As shown in FIG. 4, the method for manufacturing an interlayer noise damping material according to the present invention comprises the steps of (S100) preparing a composition for a heavy impact sound reducing foam, (S200) preparing a composition for a foamed adhesive layer, A step (S300) of preparing a composition for an impact noise reducing foam (S300), and a step (S400) of laminating each of the above compositions and integrally molding to form a cushioning material.
구체적으로 상기 S100 단계는, 중량 충격음 저감 발포체용 조성물을 제조하는 단계로써 부분 수첨 스티렌 부타디엔 블록 공중합체 70 ~ 90 중량% 및 무수말레인산이 그라프트된 폴리에틸렌 10 ~ 30 중량%로 이루어지는 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 경질 탄산칼슘 5 ~ 30 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.4 ~ 1.0 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 설정된 두께로 내린 후 냉각시켜 중량 충격음 저감 발포체용 조성물을 제조한다.Specifically, in the step S100, 100 parts by weight of a base material composed of 70 to 90% by weight of a partially hydrogenated styrene butadiene block copolymer and 10 to 30% by weight of a maleic anhydride grafted polyethylene 2 to 10 parts by weight of zinc oxide, 0.5 to 5 parts by weight of stearic acid and 5 to 30 parts by weight of hard calcium carbonate are mixed in a closed type mixer at a temperature of less than 100 DEG C, 0.4 to 1.0 part by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent, And the mixture is cooled to a predetermined thickness and cooled to prepare a composition for a heavy impact sound reducing foam.
상기 S200 단계는, 접착층 발포체용 조성물을 제조하는 단계로써 VA 함량 12 ~ 28 중량%인 EVA 30 ~ 50 중량% 및 무수말레인산이 그라프트된 폴리에틸렌 50 ~ 70 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.6 ~ 1.4 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 설정된 두께로 내린 후 냉각시켜 접착층 발포체용 조성물을 제조한다.In the step S200, 100 parts by weight of a substrate made of 30 to 50% by weight of EVA having a VA content of 12 to 28% by weight and 50 to 70% by weight of a maleic anhydride grafted polyethylene, 2 to 10 parts by weight of zinc oxide and 0.5 to 5 parts by weight of stearic acid were mixed in a closed type mixer of less than 100 ° C., 0.6 to 1.4 parts by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent were put in a roll mill, Thereby preparing a composition for an adhesive layer foam.
상기 S300 단계는, 경량 충격음 저감 발포체용 조성물을 제조하는 단계로써, VA 함량 12 ~ 28 중량%인 EVA 70 ~ 90 중량%와 무수말레인산이 그라프트된 폴리에틸렌 10 ~ 30 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 경질 탄산칼슘 5 ~ 30 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.6 ~ 1.4 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 설정된 두께로 내린 후 냉각시켜 경량 충격음 저감 발포체용 조성물을 제조한다.The step S300 is a step of preparing a composition for lightweight impact noise reducing foam comprising 100 parts by weight of a base material composed of 70 to 90% by weight of EVA having a VA content of 12 to 28% by weight and 10 to 30% by weight of polyethylene grafted with maleic anhydride 2 to 10 parts by weight of zinc oxide, 0.5 to 5 parts by weight of stearic acid and 5 to 30 parts by weight of hard calcium carbonate are mixed in a closed type mixer at a temperature of less than 100 DEG C and then 0.6 to 1.4 parts by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent And the mixture is cooled to a predetermined thickness and cooled to prepare a composition for lightweight impact sound reduction foam.
상기 S400 단계는, 상기 각 조성물을 일체로 성형하여 완충재를 제조하는 단계로써, 150 ~ 160℃로 가열된 금형에 상기 경량 충격음 저감 발포체용 조성물, 접착층 발포체용 조성물 및 중량 충격음 저감 발포체용 조성물을 사출하여 적층한 후, 120 ~ 180 kgf/cm2의 압력으로 30 ~ 40분간 프레스한 후 압력을 제거하여 완충재를 제조한다.In the step S400, the composition for a lightweight impact sound reducing foam, the composition for an adhesive layer foam and the composition for a heavy impact sound reducing foam are injected into a mold heated at 150 to 160 DEG C, And pressed at a pressure of 120 to 180 kgf / cm 2 for 30 to 40 minutes, and then the pressure is removed to prepare a cushioning material.
여기서, 상기 각 조성물의 임계적 의의는 이미 상술하였으므로 그 상세한 설명은 생략하며, 상기 각 제조 조건(온도, 압력, 시간 등)이 상기 범위를 벗어날 경우 성형을 통한 일체화가 제대로 이루어지지 않을 우려가 있다.Since the critical significance of each of the above compositions has already been described above, a detailed description thereof will be omitted, and if the respective manufacturing conditions (temperature, pressure, time, etc.) are out of the above ranges, .
이하, 본 발명을 아래 실시예에 의거하여 더욱 상세히 설명하겠는바 본 발명이 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail based on the following examples, but the present invention is not limited by the examples.
1. 층간 소음 완충재의 제조1. Manufacture of interlayer noise cushioning material
(실시예 1)(Example 1)
부분 수첨 스티렌 부타디엔 블록 공중합체(일본 Asahi-kasei elastomer의 S.O.E) 70 중량% 및 무수말레인산이 그라프트된 폴리에틸렌(미국 Dupont의 Fusabond) 30 중량%로 이루어지는 기재 100 중량부에 대하여, 산화아연 5.0 중량부, 스테아린산 1.0 중량부, 경질 탄산칼슘 20 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제(dicumylperoxide) 0.6 중량부 및 발포제(azodicarbonamide) 2.5 중량부를 투입하고 혼합하여 중량 충격음 저감 발포체용 조성물을 제조한다(S100). 그리고 VA 함량 12 ~ 28 중량%인 EVA 30 중량% 및 무수말레인산이 그라프트된 폴리에틸렌(미국 Dupont의 Fusabond) 70 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 5.0 중량부, 스테아린산 1.0 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제(dicumylperoxide) 0.6 중량부 및 발포제(azodicarbonamide) 2.5 중량부를 투입하고 혼합하여 접착층 발포체용 조성물을 제조(S200)한다. 또한 VA 함량 12 ~ 28 중량%인 EVA 70 중량%와 무수말레인산이 그라프트된 폴리에틸렌(미국 Dupont의 Fusabond) 30 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 5.0 중량부, 스테아린산 1.0 중량부, 경질 탄산칼슘 20 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제(dicumylperoxide) 0.6 중량부 및 발포제(azodicarbonamide) 2.5 중량부를 투입하고 혼합하여 경량 충격음 저감 발포체용 조성물을 제조(S300)한다. 그리고 150 ~ 160℃로 가열된 20mm 두께의 금형에 상기 경량 충격음 저감 발포체용 조성물 11mm, 접착층 발포체용 조성물 1mm 및 중량 충격음 저감 발포체용 조성물 11mm 두께로 사출하여 적층한 후, 120 ~ 180 kgf/cm2의 압력으로 30 ~ 40분간 프레스한 후 압력을 제거하여 완충재를 제조(S400)하였다.Based on 100 parts by weight of a base material composed of 70% by weight of a partially hydrogenated styrene-butadiene block copolymer (SOE of Japan Asahi-kasei elastomer) and 30% by weight of polyethylene having maleic anhydride grafted (Fusabond, Dupont, USA) , 1.0 part by weight of stearic acid and 20 parts by weight of hard calcium carbonate were mixed in a closed mixer at a temperature of less than 100 DEG C and then 0.6 part by weight of a dicumylperoxide and 2.5 parts by weight of azodicarbonamide were mixed and mixed in a roll mill to prepare a composition for heavy impact sound- (S100). 5.0 parts by weight of zinc oxide and 1.0 part by weight of stearic acid were added to 100 parts by weight of a substrate made of 30% by weight of EVA having a VA content of 12 to 28% by weight and 70% by weight of maleic anhydride grafted polyethylene (Fusabond, Dupont, USA) , And 0.6 parts by weight of a crosslinking agent (dicumylperoxide) and 2.5 parts by weight of azodicarbonamide are mixed and mixed in a roll mill to prepare a composition for an adhesive layer foam (S200). Further, to 100 parts by weight of a substrate composed of 70% by weight of EVA having a VA content of 12 to 28% by weight and 30% by weight of polyethylene having maleic anhydride grafted thereto (Fusabond, Dupont, USA), 5.0 parts by weight of zinc oxide, 20 parts by weight of hard calcium carbonate are mixed in a closed type mixer at a temperature of less than 100 ° C. 0.6 parts by weight of a dicumylperoxide and 2.5 parts by weight of azodicarbonamide are mixed in a roll mill and mixed to prepare a composition for lightweight impact sound reducing foamed product (S300). Then, the composition for a lightweight impact sound reducing foam of 11 mm, the composition for a foamed adhesive layer of 1 mm and the composition for a heavy impact sound reducing foam of 11 mm thickness were injected and laminated on a 20 mm-thick mold heated to 150 to 160 ° C and then laminated at 120 to 180 kgf / cm 2 Pressure for 30 to 40 minutes, and the pressure was removed to prepare a cushioning material (S400).
(실시예 2)(Example 2)
부분 수첨 스티렌 부타디엔 블록 공중합체(일본 Asahi-kasei elastomer의 S.O.E) 90 중량% 및 무수말레인산이 그라프트된 폴리에틸렌(미국 Dupont의 Fusabond) 10 중량%로 이루어지는 기재 100 중량부에 대하여, 산화아연 5.0 중량부, 스테아린산 1.0 중량부, 경질 탄산칼슘 20 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제(dicumylperoxide) 0.6 중량부 및 발포제(azodicarbonamide) 2.5 중량부를 투입하고 혼합하여 중량 충격음 저감 발포체용 조성물을 제조한다(S100). 그리고 VA 함량 12 ~ 28 중량%인 EVA 50 중량% 및 무수말레인산이 그라프트된 폴리에틸렌(미국 Dupont의 Fusabond) 50 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 5.0 중량부, 스테아린산 1.0 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제(dicumylperoxide) 0.6 중량부 및 발포제(azodicarbonamide) 2.5 중량부를 투입하고 혼합하여 접착층 발포체용 조성물을 제조(S200)한다. 또한 VA 함량 12 ~ 28 중량%인 EVA 90 중량%와 무수말레인산이 그라프트된 폴리에틸렌(미국 Dupont의 Fusabond) 10 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 5.0 중량부, 스테아린산 1.0 중량부, 경질 탄산칼슘 20 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제(dicumylperoxide) 0.6 중량부 및 발포제(azodicarbonamide) 2.5 중량부를 투입하고 혼합하여 경량 충격음 저감 발포체용 조성물을 제조(S300)한다. 그리고 150 ~ 160℃로 가열된 20mm 두께의 금형에 상기 경량 충격음 저감 발포체용 조성물 11mm, 접착층 발포체용 조성물 1mm 및 중량 충격음 저감 발포체용 조성물 11mm 두께로 사출하여 적층한 후, 120 ~ 180 kgf/cm2의 압력으로 30 ~ 40분간 프레스한 후 압력을 제거하여 완충재를 제조(S400)하였다.Based on 100 parts by weight of a base composed of 90% by weight of a partially hydrogenated styrene-butadiene block copolymer (SOE of Japanese Asahi-kasei elastomer) and 10% by weight of polyethylene having maleic anhydride grafted (Fusabond, Dupont, USA) , 1.0 part by weight of stearic acid and 20 parts by weight of hard calcium carbonate were mixed in a closed mixer at a temperature of less than 100 DEG C and then 0.6 part by weight of a dicumylperoxide and 2.5 parts by weight of azodicarbonamide were mixed and mixed in a roll mill to prepare a composition for heavy impact sound- (S100). 5.0 parts by weight of zinc oxide and 1.0 part by weight of stearic acid were added to 100 parts by weight of a substrate made of 50% by weight of EVA having a VA content of 12 to 28% by weight and 50% by weight of maleic anhydride grafted polyethylene (Fusabond, Dupont, USA) , And 0.6 parts by weight of a crosslinking agent (dicumylperoxide) and 2.5 parts by weight of azodicarbonamide are mixed and mixed in a roll mill to prepare a composition for an adhesive layer foam (S200). (100 parts by weight) consisting of 90% by weight of an EVA having a VA content of 12 to 28% by weight and 10% by weight of a maleic anhydride grafted polyethylene (Fusabond, Dupont, USA), 5.0 parts by weight of zinc oxide, 20 parts by weight of hard calcium carbonate are mixed in a closed type mixer at a temperature of less than 100 ° C. 0.6 parts by weight of a dicumylperoxide and 2.5 parts by weight of azodicarbonamide are mixed in a roll mill and mixed to prepare a composition for lightweight impact sound reducing foamed product (S300). Then, the composition for a lightweight impact sound reducing foam of 11 mm, the composition for a foamed adhesive layer of 1 mm and the composition for a heavy impact sound reducing foam of 11 mm thickness were injected and laminated on a 20 mm-thick mold heated to 150 to 160 ° C and then laminated at 120 to 180 kgf / cm 2 Pressure for 30 to 40 minutes, and the pressure was removed to prepare a cushioning material (S400).
(비교예 1)(Comparative Example 1)
EVA 100 중량부에 대하여, 산화아연 5.0 중량부, 스테아린산 1.0 중량부를 100℃ 미만의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제(dicumylperoxide) 0.6 중량부 및 발포제(azodicarbonamide) 2.5 중량부를 투입하고 혼합하여 완충재용 조성물을 제조하고, 150 ~ 160℃로 가열된 20mm 두께의 금형에 상기 완충재용 조성물을 23mm 두께로 사출하여 적층한 후, 120 ~ 180 kgf/cm2의 압력으로 30 ~ 40분간 프레스한 후 압력을 제거하여 완충재를 제조하였다.5.0 parts by weight of zinc oxide and 1.0 part by weight of stearic acid were mixed in an airtight mixer of less than 100 DEG C per 100 parts by weight of EVA, 0.6 parts by weight of a dicumylperoxide and 2.5 parts by weight of an azodicarbonamide were mixed in a roll mill, The composition was prepared, and the composition for a buffer material was injected into a mold having a thickness of 20 mm heated to 150 to 160 DEG C to a thickness of 23 mm and laminated. The laminate was pressed at a pressure of 120 to 180 kgf / cm 2 for 30 to 40 minutes, To prepare a cushioning material.
2. 층간 소음 완충재의 평가2. Evaluation of interlayer noise cushioning materials
상기 실시예 1, 2 및 비교예 1에 따른 층간 소음 완충재의 중량 충격음 레벨과 경량 충격음 레벨을 평가하였으며, 시험규격 및 시험결과를 아래 [표 1]에 나타내었다.The weight impact sound level and light impact sound level of the interlayer noise damping material according to Examples 1 and 2 and Comparative Example 1 were evaluated, and the test specifications and test results are shown in Table 1 below.
상기 [표 1]에서와 같이, 본 발명의 실시예 1 및 2에 따른 층간 소음 완충재는 비교예 1에 따른 일반적인 완충재에 비해 중량 충격음이 크게 개선됨을 알 수 있다.As shown in Table 1, it can be seen that the impact sound of the interlayer noise cushion according to the first and second embodiments of the present invention is significantly improved as compared with the conventional cushioning material according to the first comparative example.
상술한 바와 같이, 본 발명에 따른 층간 소음 완충재의 제조 방법은 상기의 바람직한 실시 예를 통해 설명하고, 그 우수성을 확인하였지만 해당 기술 분야의 당업자라면 하기의 특허 청구 범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.As described above, the method for manufacturing an interlayer noise damping material according to the present invention is described through the preferred embodiments and its superiority is confirmed. However, those skilled in the art will recognize that the spirit and scope of the present invention It will be understood that the invention can be variously modified and changed without departing from the spirit and scope of the invention.
S100 : 중량 충격음 저감 발포체용 조성물을 제조하는 단계
S200 : 접착층 발포체용 조성물을 제조하는 단계
S300 : 경량 충격음 저감 발포체용 조성물을 제조하는 단계
S400 : 상기 각 조성물을 적층하고 일체로 성형하여 완충재를 제조하는 단계S100: Step of producing a composition for heavy impact sound reducing foam
S200: Step of preparing a composition for an adhesive layer foam
S300: Step of preparing a composition for lightweight impact sound reduction foam
S400: Each of the above compositions is laminated and integrally molded to produce a cushioning material
Claims (5)
부분 수첨 스티렌 부타디엔 블록 공중합체 70 ~ 90 중량% 및 무수말레인산이 그라프트된 폴리에틸렌 10 ~ 30 중량%로 이루어지는 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 경질 탄산칼슘 5 ~ 30 중량부를 10 ~ 100℃의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.4 ~ 1.0 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 중량 충격음 저감 발포체용 조성물을 제조하는 단계(S100);
VA 함량 12 ~ 28 중량%인 EVA 30 ~ 50 중량% 및 무수말레인산이 그라프트된 폴리에틸렌 50 ~ 70 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부를 10 ~ 100℃의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.6 ~ 1.4 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 접착층 발포체용 조성물을 제조하는 단계(S200);
VA 함량 12 ~ 28 중량%인 EVA 70 ~ 90 중량%와 무수말레인산이 그라프트된 폴리에틸렌 10 ~ 30 중량%로 이루어진 기재 100 중량부에 대하여, 산화아연 2 ~ 10 중량부, 스테아린산 0.5 ~ 5 중량부, 경질 탄산칼슘 5 ~ 30 중량부를 10 ~ 100℃의 밀폐형 혼합기에서 혼합 후, 롤밀에서 가교제 0.6 ~ 1.4 중량부 및 발포제 4 ~ 10 중량부를 투입하고 혼합하여 경량 충격음 저감 발포체용 조성물을 제조하는 단계(S300); 및
150 ~ 160℃로 가열된 금형에 상기 경량 충격음 저감 발포체용 조성물, 접착층 발포체용 조성물 및 중량 충격음 저감 발포체용 조성물을 사출하여 적층한 후, 120 ~ 180 kgf/cm2의 압력으로 30 ~ 40분간 프레스한 후 압력을 제거하여 완충재를 제조하는 단계(400)를 포함하여 이루어지는 것을 특징으로 하는, 층간 소음 완충재의 제조방법.
A method for manufacturing an interlayer noise cushioning material,
2 to 10 parts by weight of zinc oxide, 0.5 to 5 parts by weight of stearic acid, 10 to 30 parts by weight of hardened 0.4 to 1.0 part by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent are mixed and mixed in 5 to 30 parts by weight of calcium carbonate in a closed mixer at 10 to 100 ° C to prepare a composition for weight- ;
2 to 10 parts by weight of zinc oxide and 0.5 to 5 parts by weight of stearic acid are added to 100 parts by weight of a base composed of 30 to 50% by weight of EVA having a VA content of 12 to 28% by weight and 50 to 70% by weight of polyethylene having grafted maleic anhydride, 0.6 to 1.4 parts by weight of a crosslinking agent in a roll mill and 4 to 10 parts by weight of a foaming agent are mixed and mixed in a closed type mixer at 10 to 100 캜 to prepare a composition for an adhesive layer foam (S200);
2 to 10 parts by weight of zinc oxide and 0.5 to 5 parts by weight of stearic acid are added to 100 parts by weight of a base composed of 70 to 90% by weight of EVA having a VA content of 12 to 28% by weight and 10 to 30% by weight of polyethylene having grafted maleic anhydride, And 5 to 30 parts by weight of hard calcium carbonate are mixed in a closed type mixer at 10 to 100 ° C and then 0.6 to 1.4 parts by weight of a crosslinking agent and 4 to 10 parts by weight of a foaming agent are added and mixed in a roll mill to prepare a composition for lightweight impact sound- S300); And
The composition for a lightweight impact sound reducing foam, the composition for an adhesive layer foam and the composition for a heavy impact sound reducing foam are injected and laminated in a mold heated at 150 to 160 캜 and pressed at a pressure of 120 to 180 kgf / cm 2 for 30 to 40 minutes. And then removing pressure to produce a cushioning material (400). ≪ Desc / Clms Page number 19 >
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170074031A KR101941561B1 (en) | 2017-06-13 | 2017-06-13 | Manufacturing method of reduction materials of floor impact sound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170074031A KR101941561B1 (en) | 2017-06-13 | 2017-06-13 | Manufacturing method of reduction materials of floor impact sound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20180135664A KR20180135664A (en) | 2018-12-21 |
| KR101941561B1 true KR101941561B1 (en) | 2019-01-23 |
Family
ID=64960109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020170074031A KR101941561B1 (en) | 2017-06-13 | 2017-06-13 | Manufacturing method of reduction materials of floor impact sound |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101941561B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102268226B1 (en) | 2020-08-11 | 2021-06-23 | 나상권 | Interlayer insulation sound insulation materials of buldings |
| KR102364350B1 (en) | 2021-06-14 | 2022-02-17 | 나상권 | Anisotropic sound insulation for reducing impact sound |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101740046B1 (en) * | 2015-06-08 | 2017-06-08 | 현군식 | Floor buffer material for building |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950003323B1 (en) * | 1992-06-19 | 1995-04-10 | 금성통신 주식회사 | Sidetone level control device |
| KR100407780B1 (en) * | 2001-03-21 | 2003-12-01 | 엘지전선 주식회사 | High damping polymer composites for reducing impact sound and preparation method thereof |
| KR100446002B1 (en) * | 2002-02-01 | 2004-08-25 | 영보화학 주식회사 | Composite foamed material for soundproofing of building |
| KR100654739B1 (en) * | 2004-09-22 | 2006-12-08 | 삼성토탈 주식회사 | Noise-blocking pad for architecture with excellent heavy noise-blocking and flame resistance |
| KR20140042195A (en) | 2012-09-28 | 2014-04-07 | 주식회사 에스아이판 | Complex cushioning material |
-
2017
- 2017-06-13 KR KR1020170074031A patent/KR101941561B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101740046B1 (en) * | 2015-06-08 | 2017-06-08 | 현군식 | Floor buffer material for building |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180135664A (en) | 2018-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102174166B (en) | Thermoplastic semihard polyurethane foam for automobile ceiling and preparation method thereof | |
| KR101941561B1 (en) | Manufacturing method of reduction materials of floor impact sound | |
| KR101814653B1 (en) | Light Concrete Panel for Insulating and Soundproofing and the Manufacturing Method of This | |
| KR100729826B1 (en) | Full water vaporization spray composite adapted for decreasing the floor impact sound of building and satisfying a wet structure condition of an apartment house, the polyurethane spray foam structure using the spray composite, and the method for constructing a floor impact sound insulation layer | |
| KR100730542B1 (en) | The soundproofing board using the floor of building and method thereof | |
| KR100750628B1 (en) | Noise-blocking pad for architecture with excellent insulation of noise | |
| CN112976453A (en) | Preparation method of ultra-silent floor | |
| KR100773106B1 (en) | Shock absorbing materials for inter layer noise proofing of a construction, manufacturing method thereof and floor forming method using the shock absorbing materials | |
| KR101361749B1 (en) | Sound insulating material for inter floor comprising eva complex foamed layer and pu foamed layer | |
| KR101123298B1 (en) | High Elastic High Damping Foamed Pad for Vibration Isolation and Fabrication Method of That | |
| KR100643036B1 (en) | Structure for isolating the floor impact sound in community houses | |
| CN114851664A (en) | Flexible silent floor and preparation method thereof | |
| KR101331665B1 (en) | Method of manufacturing Interfloor noise proofing material | |
| KR101810775B1 (en) | Eva foamed pad composition for reducing floor impact sound and foamed pad | |
| JP2691321B2 (en) | Soundproof flooring | |
| KR100407780B1 (en) | High damping polymer composites for reducing impact sound and preparation method thereof | |
| KR101875605B1 (en) | Floor mat with both side pattern | |
| KR20090115391A (en) | Noise-interception sheet to reduce the floor impact noise and to improve the thermal insulation performance in apartment house and a manufacturing method thereof | |
| KR100473559B1 (en) | Polymer composite for reducing impact sound and establishment method thereof | |
| KR101246054B1 (en) | Construction material of use for forming clay and alloy material and preparing method thereof | |
| KR102496901B1 (en) | laminated sound insulation material preventing interlayer noise | |
| KR100716665B1 (en) | Structure for isolating the floor impact sound in community houses | |
| KR102394242B1 (en) | Sound insulation composition preventing interlayer noise and sound insulation material using the same | |
| KR100729234B1 (en) | Resin composition with excellent floor impact sound insulation | |
| KR20100027451A (en) | Flameretardant panel using rice hulls and preparation thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right |