KR102204332B1 - Manufacturing method of environment friendly sound absorbing material - Google Patents
Manufacturing method of environment friendly sound absorbing material Download PDFInfo
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- KR102204332B1 KR102204332B1 KR1020180172611A KR20180172611A KR102204332B1 KR 102204332 B1 KR102204332 B1 KR 102204332B1 KR 1020180172611 A KR1020180172611 A KR 1020180172611A KR 20180172611 A KR20180172611 A KR 20180172611A KR 102204332 B1 KR102204332 B1 KR 102204332B1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/40—Moulds for making articles of definite length, i.e. discrete articles with means for cutting the article
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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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/33—Agglomerating foam fragments, e.g. waste foam
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
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- 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
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- 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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0468—Crushing, i.e. disintegrating into small particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Mechanical Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
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Abstract
본 발명은 친환경 흡차음재의 제조방법에 관한 것으로, 더욱 상세하게는 발포고무 스크랩을 분쇄하는 발포고무분쇄단계, 발포폴리올레핀 스크랩을 분쇄하는 발포폴리올레핀분쇄단계, 상기 발포고무분쇄단계를 통해 제조된 발포고무 분쇄물과 상기 발포폴리올레핀분쇄단계를 통해 제조된 발포폴리올레핀 분쇄물을 접착제와 혼합하는 원료혼합단계, 상기 원료혼합단계를 통해 제조된 혼합물을 금형에 투입하고 성형하는 성형단계 및 상기 성형단계를 통해 성형된 성형물을 절단하는 절단단계로 이루어진다.
상기의 과정으로 이루어지는 친환경 흡차음재의 제조방법은 폐기처분되는 스크랩을 재활용하여 친환경적이며, 중량이 가볍고 우수한 흡차음성능을 나타내는 흡차음재를 제공한다.The present invention relates to a method of manufacturing an eco-friendly sound absorbing and insulating material, and more particularly, a foamed rubber crushing step of crushing foamed rubber scrap, a foamed polyolefin crushing step of crushing foamed polyolefin scrap, and foamed rubber manufactured through the foamed rubber crushing step. A raw material mixing step of mixing the pulverized product and the expanded polyolefin pulverized product produced through the expanded polyolefin pulverization step with an adhesive, a molding step of injecting and molding the mixture prepared through the raw material mixing step into a mold, and molding through the molding step It consists of a cutting step of cutting the formed product
The method of manufacturing an eco-friendly sound absorbing and insulating material made of the above process is environmentally friendly by recycling scrap disposed of, and provides a sound absorbing and insulating material that is light in weight and exhibits excellent sound absorbing and insulating properties.
Description
본 발명은 친환경 흡차음재의 제조방법에 관한 것으로, 더욱 상세하게는 폐기처분되는 스크랩을 재활용하여 친환경적이며, 중량이 가볍고 우수한 흡차음성능을 나타내는 흡차음재를 제공하는 친환경 흡차음재의 제조방법에 관한 것이다.The present invention relates to a method of manufacturing an eco-friendly sound absorbing and insulating material, and more particularly, to a method of manufacturing an environmentally friendly sound absorbing and insulating material that is eco-friendly by recycling scrap disposed of, and provides a sound absorbing and insulating material that is light in weight and exhibits excellent sound absorbing and insulating performance. .
도시의 인구 집중에 따라 적은 면적에 많은 주거공간을 확보하기 위해 다층구조를 갖는 공동주택 건설이 활성화되고 있으며, 이러한 공통주택의 경우 층간소음으로 인한 피해가 늘어나고 있다.In order to secure a large number of residential spaces in a small area due to the concentration of the population in the city, the construction of multi-storey apartment houses is being activated, and the damage caused by the noise between floors is increasing in the case of such common houses.
층간소음은 통상 경량충격음 및 중량충격음으로 구분되며, 경량충격음은 가볍고 딱딱한 소리로서 발생시 사람을 놀라게 하지만 잔향이 없어 불쾌감이 적고, 중량충격음은 무겁고 부드러운 소리로 발생시 잔향이 남아 사람으로 하여금 심한 불쾌감을 갖게 하며, 심하면 정신적 고통을 유발하게 된다.Interlayer noise is usually divided into lightweight impact sound and heavy impact sound, and lightweight impact sound is a light and hard sound that surprises people when it occurs, but has little discomfort because there is no reverberation. And, if it is severe, it causes mental pain.
이에 따라 공동주택 건설의 경우에는 법적으로 층간소음을 감소시킬 수 있는 바닥 구조로 시공을 하도록 고시하고 있으며, 예외적으로 층간소음 기준 요건에 부합할 경우에는 건설회사에서 자체 기술로 바닥을 시공할 수 있도록 하고 있다.Accordingly, in the case of apartment construction, it is legally notified to construct a floor structure that can reduce inter-floor noise. Exceptionally, if it meets the requirements for inter-floor noise standards, the construction company can construct the floor with its own technology. Are doing.
이러한 층간소음 방지를 위한 종래 기술로는 바닥에 자체 공극을 갖는 천연섬유를 이용한 부직포를 첨가한 차음재를 사용하거나, 스티로폼, 발포폴리프로필렌(EPP) 및 발포폴리스틸렌(EPS) 등의 공극을 갖는 발포수지층을 흡차음재로 적용하고 있다.As a conventional technology for preventing such interlayer noise, a sound insulating material added with a nonwoven fabric using natural fibers having its own pores on the floor is used, or foamed water having pores such as styrofoam, expanded polypropylene (EPP), and expanded polystyrene (EPS). The stratum is applied as a sound absorbing and insulating material.
그러나, 상기한 천연섬유를 이용한 부직포를 사용하는 경우에는 천연섬유를 사용하므로 제조원가가 높고, 차음재의 중량이 무거운 문제점이 있으며, 발포수지층을 사용하는 경우에는 발포시킨 단일 발포수지판을 사용하므로 공극이 다양하지 못해 다양한 주파수대의 소음을 차단하지 못하므로, 공극을 다르게 하여 발포시킨 발포수지판을 추가로 부착하거나 다른 주파수대의 소음을 차단할 수 있는 차단재를 추가로 형성해야 하는 문제점이 있었다.However, in the case of using the nonwoven fabric using natural fibers, the manufacturing cost is high because the natural fibers are used, and the weight of the sound insulation material is heavy, and in the case of using the foamed resin layer, a single foamed resin plate is used. Since this is not diverse and cannot block noise in various frequency bands, there is a problem in that it is necessary to additionally attach a foamed resin plate foamed with different air gaps or to additionally form a blocking material capable of blocking noise in other frequency bands.
한편, 종래에는 발포수지층을 형성하기 위한 스티로폼, 발포폴리프로필렌(EPP) 및 발포폴리스틸렌(EPS) 등을 제조하는 과정에서 스크랩이 다량 발생하는데, 이 스크랩은 재활용되지 못하고 폐기처분되어 환경오염을 유발하는 문제점이 있었다.On the other hand, conventionally, a large amount of scrap is generated in the process of manufacturing styrofoam, expanded polypropylene (EPP), and expanded polystyrene (EPS) for forming the expanded resin layer, but the scrap is not recycled and disposed of, causing environmental pollution. There was a problem.
본 발명의 목적은 폐기처분되는 스크랩을 재활용하여 친환경적이며, 중량이 가볍고 우수한 흡차음성능을 나타내는 흡차음재를 제공하는 친환경 흡차음재의 제조방법을 제공하는 것이다.It is an object of the present invention to provide a method for manufacturing an eco-friendly sound absorbing and insulating material that is eco-friendly by recycling scrap disposed of, and provides a sound absorbing and insulating material that is light in weight and exhibits excellent sound absorbing and insulating performance.
본 발명의 목적은 발포고무 스크랩을 분쇄하는 발포고무분쇄단계, 발포폴리올레핀 스크랩을 분쇄하는 발포폴리올레핀분쇄단계, 상기 발포고무분쇄단계를 통해 제조된 발포고무 분쇄물과 상기 발포폴리올레핀분쇄단계를 통해 제조된 발포폴리올레핀 분쇄물을 접착제와 혼합하는 원료혼합단계, 상기 원료혼합단계를 통해 제조된 혼합물을 금형에 투입하고 성형하는 성형단계 및 상기 성형단계를 통해 성형된 성형물을 절단하는 절단단계로 이루어지는 것을 특징으로 하는 친환경 흡차음재의 제조방법을 제공함에 의해 달성된다.An object of the present invention is a foamed rubber crushing step of pulverizing foamed rubber scrap, a foamed polyolefin crushing step of pulverizing foamed polyolefin scrap, a pulverized foamed rubber prepared through the foamed rubber crushing step, and prepared through the foamed polyolefin crushing step. It comprises a raw material mixing step of mixing the expanded polyolefin pulverized product with an adhesive, a molding step of injecting and molding the mixture prepared through the raw material mixing step into a mold, and a cutting step of cutting the molded product formed through the molding step. It is achieved by providing a method of manufacturing an environmentally friendly sound absorbing and insulating material.
본 발명의 바람직한 특징에 따르면, 상기 성형단계와 상기 절단단계 사이에는 상기 성형단계를 통해 성형된 성형물에 기공층을 형성하는 핀치롤단계가 더 진행되는 것으로 한다.According to a preferred feature of the present invention, between the molding step and the cutting step, a pinch roll step of forming a pore layer on the molded article formed through the molding step is further performed.
본 발명의 더 바람직한 특징에 따르면, 상기 원료혼합단계는 발포고무 분쇄물 100 중량부, 발포폴리올레핀 분쇄물 20 내지 70 중량부 및 접착제 10 내지 20 중량부를 혼합하여 이루어지는 것으로 한다.According to a more preferred feature of the present invention, the raw material mixing step is made by mixing 100 parts by weight of a pulverized foam rubber, 20 to 70 parts by weight of a pulverized polyolefin foam, and 10 to 20 parts by weight of an adhesive.
본 발명의 더욱 바람직한 특징에 따르면, 상기 발포고무 분쇄물과 상기 발포폴리올레핀 분쇄물은 2 내지 5mm의 입자크기를 나타내는 것으로 한다.According to a more preferred feature of the present invention, the foamed rubber pulverized product and the expanded polyolefin pulverized product have a particle size of 2 to 5mm.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 접착제는 에폭시계 또는 우레탄계로 이루어지는 것으로 한다.According to a further preferred feature of the present invention, the adhesive is made of an epoxy-based or urethane-based.
본 발명의 더욱 더 바람직한 특직에 따르면, 상기 성형단계는 110 내지 130℃의 온도에서 5 내지 60분 동안 이루어지는 것으로 한다.According to an even more preferred feature of the present invention, the molding step is to be made for 5 to 60 minutes at a temperature of 110 to 130 ℃.
본 발명에 따른 친환경 흡차음재의 제조방법은 폐기처분되는 스크랩을 재활용하여 친환경적이며, 중량이 가볍고 우수한 흡차음성능을 나타내는 흡차음재를 제공하는 탁월한 효과를 나타낸다.The method of manufacturing an eco-friendly sound absorbing and insulating material according to the present invention exhibits an excellent effect of providing a sound absorbing and insulating material that is eco-friendly by recycling scrap that is disposed of, and is light in weight and exhibits excellent sound absorbing and insulating properties.
도 1은 본 발명의 일 실시예에 따른 친환경 흡차음재의 제조방법을 나타낸 순서도이다.
도 2는 본 발명의 다른 실시예에 따른 친환경 흡차음재의 제조방법을 나타낸 순서도이다.1 is a flow chart showing a method of manufacturing an eco-friendly sound absorbing and insulating material according to an embodiment of the present invention.
2 is a flow chart showing a method of manufacturing an eco-friendly sound absorbing and insulating material according to another embodiment of 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.Hereinafter, a preferred embodiment of the present invention and the physical properties of each component will be described in detail, but this is for explaining in detail enough that one of ordinary skill in the art can easily implement the invention, This does not mean that the technical spirit and scope of the present invention are limited.
본 발명에 따른 친환경 흡차음재의 제조방법은 발포고무 스크랩을 분쇄하는 발포고무분쇄단계(S101), 발포폴리올레핀 스크랩을 분쇄하는 발포폴리올레핀분쇄단계(S101-1), 상기 발포고무분쇄단계(S101)를 통해 제조된 발포고무 분쇄물과 상기 발포폴리올레핀분쇄단계(S101-1)를 통해 제조된 발포폴리올레핀 분쇄물을 접착제와 혼합하는 원료혼합단계(S103), 상기 원료혼합단계(S103)를 통해 제조된 혼합물을 금형에 투입하고 성형하는 성형단계(S105) 및 상기 성형단계(S105)를 통해 성형된 성형물을 절단하는 절단단계(S107)로 이루어진다.The manufacturing method of the eco-friendly sound absorbing and insulating material according to the present invention includes a foamed rubber crushing step (S101) of crushing foamed rubber scrap, a foamed polyolefin crushing step (S101-1) of crushing foamed polyolefin scrap, and the foamed rubber crushing step (S101). A raw material mixing step (S103) of mixing the foamed rubber pulverized product prepared through the foamed polyolefin pulverization step (S101-1) and the expanded polyolefin pulverized product prepared through the foamed polyolefin crushing step (S101-1), the mixture prepared through the raw material mixing step (S103) It consists of a molding step (S105) of putting into a mold and molding and a cutting step (S107) of cutting the molded product formed through the molding step (S105).
상기 발포고무분쇄단계(S101)는 발포고무 스크랩을 분쇄하는 단계로, 발포고무 스크랩을 분쇄기에 투입하고 2 내지 5 밀리미터의 입자크기로 분쇄하는 단계다.The foamed rubber crushing step (S101) is a step of pulverizing the foamed rubber scrap, in which the foamed rubber scrap is put into a grinder and pulverized to a particle size of 2 to 5 millimeters.
발포고무는 고무를 발포하여 제조되는 것으로, 일반적으로, 0.1 내지 1 밀리미터의 기공이 형성되어 있는데, 천연고무(NR), 라텍스(LATEX), 니트릴부타디엔고무(NBR), 부타디엔고무(BR), 스티렌부타디엔고무(SBR), 스티렌고무(SR) 등과 같은 고무를 다양한 방법으로 발포하여 제조된다.Foamed rubber is manufactured by foaming rubber, and generally has pores of 0.1 to 1 millimeter. Natural rubber (NR), latex (LATEX), nitrile butadiene rubber (NBR), butadiene rubber (BR), styrene It is manufactured by foaming rubber such as butadiene rubber (SBR) and styrene rubber (SR) by various methods.
상기와 같은 성분으로 제조되는 발포고무는 고무를 발포한 후에 가공하는 과정에서 스크랩이 발생하게 되며, 상기와 같은 과정에서 발생되는 스크랩은 재활용되지 못하고 폐기처분되어 환경오염을 유발하게 된다.In the foamed rubber made of the above components, scrap is generated in the process of processing after the rubber is foamed, and the scrap generated in the above process cannot be recycled and disposed of to cause environmental pollution.
상기 발포고무 스크랩의 입자크기가 2 밀리미터 미만이면 발포고무 스크랩의 입자크기가 지나치게 작아 쉽게 비산되어 작업장을 오염시키며 뭉침현상이 발생하여 상기 원료혼합단계(S103)에서 접착제와 고르게 혼합되지 못하기 때문에 균질한 물성을 나타내는 흡차음재를 제조할 수 없게 되며, 상기 발포고무 스크랩의 입자크기가 5 밀리미터를 초과하게 되면 상기 원료혼합단계(S103)에서 상기 발포폴리올레핀 스크랩과의 혼합도가 저하된다.If the particle size of the foamed rubber scrap is less than 2 millimeters, the particle size of the foamed rubber scrap is too small to be easily scattered and contaminates the workplace, and agglomeration occurs, so that it cannot be evenly mixed with the adhesive in the raw material mixing step (S103). The sound absorbing and insulating material exhibiting one physical property cannot be manufactured, and when the particle size of the expanded rubber scrap exceeds 5 mm, the degree of mixing with the expanded polyolefin scrap in the raw material mixing step (S103) is reduced.
상기 발포폴리올레핀분쇄단계(S101-1)는 발포폴리올레핀 스크랩을 분쇄하는 단계로, 발포폴리올레핀 스크랩을 분쇄기에 투입하고 2 내지 5 밀리미터의 입자크기로 분쇄하는 단계다.The expanded polyolefin pulverization step (S101-1) is a step of pulverizing expanded polyolefin scrap, in which the expanded polyolefin scrap is put into a pulverizer and pulverized to a particle size of 2 to 5 millimeters.
발포폴리올레핀에는 일반적으로 0,1 내지 1 밀리미터의 기공층이 형성되는데 발포폴리올레핀 스크랩의 입자크기가 2 밀리미터 미만이면 발포폴리올레핀 스크랩의 입자크기가 지나치게 작아 쉽게 비산되어 작업장을 오염시키며 뭉침현상이 발생하여 상기 원료혼합단계(S103)에서 접착제와 고르게 혼합되지 못하기 때문에 균질한 물성을 나타내는 흡차음재를 제조할 수 없게 되며, 상기 발포폴리올레핀 스크랩의 입자크기가 5 밀리미터를 초과하게 되면 상기 원료혼합단계(S103)에서 상기 발포고무 스크랩과의 혼합도가 저하된다.In general, a pore layer of 0,1 to 1 millimeter is formed in the expanded polyolefin.If the particle size of the expanded polyolefin scrap is less than 2 millimeters, the particle size of the expanded polyolefin scrap is too small and easily scattered, polluting the workplace and causing agglomeration. In the raw material mixing step (S103), the sound absorbing and insulating material exhibiting homogeneous physical properties cannot be manufactured because it cannot be evenly mixed with the adhesive, and when the particle size of the expanded polyolefin scrap exceeds 5 mm, the raw material mixing step (S103) The mixing degree with the foamed rubber scrap is lowered.
이때, 상기 발포폴리올레핀은 폴리에틸렌, 폴리프로필렌 및 폴리스티렌 등이 사용될 수 있으나, 이에 한정되지는 않는다.In this case, the expanded polyolefin may be polyethylene, polypropylene, polystyrene, or the like, but is not limited thereto.
상기 원료혼합단계(S103)는 상기 발포고무분쇄단계(S101)를 통해 제조된 발포고무 분쇄물과 상기 발포폴리올레핀분쇄단계(S101-1)를 통해 제조된 발포폴리올레핀 분쇄물을 접착제와 혼합하는 단계로, 발포고무 분쇄물 100 중량부, 발포폴리올레핀 분쇄물 20 내지 70 중량부 및 접착제 10 내지 20 중량부를 교반기가 구비된 혼합장치에 투입하고 100 내지 200rpm의 속도로 10 내지 20분 동안 혼합하여 이루어지는 것이 바람직하다.The raw material mixing step (S103) is a step of mixing the foamed rubber pulverized product manufactured through the foamed rubber crushing step (S101) and the expanded polyolefin pulverized product manufactured through the foamed polyolefin crushing step (S101-1) with an adhesive. , 100 parts by weight of the pulverized foamed rubber, 20 to 70 parts by weight of the pulverized polyolefin, and 10 to 20 parts by weight of the adhesive are added to a mixing device equipped with a stirrer and mixed at a speed of 100 to 200 rpm for 10 to 20 minutes. Do.
상기 발포고무 분쇄물과 상기 발포폴리올레핀 분쇄물은 상기 성형단계(S105)에서 용융점 이상으로 가열되면 접착성능이 발현되어 접착제의 함량을 낮출 수 있게 된다. 따라서, 발포고무 분쇄물과 발포폴리올레핀 분쇄물을 함량이 높아질수록 접착제의 함량을 낮게 하는 것이 바람직하다.When the foamed rubber pulverized product and the expanded polyolefin pulverized product are heated to a melting point or higher in the molding step (S105), adhesive performance is expressed, so that the content of the adhesive can be reduced. Therefore, it is preferable to lower the content of the adhesive as the content of the pulverized foam rubber and the pulverized polyolefin foam increases.
상기 발포고무 분쇄물은 우수한 탄성을 나타내기 때문에, 본 발명을 통해 제조되는 흡차음재에 완충성과 내충격성을 향상시킬 뿐만 아니라 흡음성능을 향상시키는 역할을 하며, 상기 발포폴리올레핀 분쇄물은 본 발명을 통해 제조되는 흡차음재의 차음성능을 향상시키는 역할을 한다.Since the foamed rubber pulverized product exhibits excellent elasticity, it not only improves buffering and impact resistance to the sound absorbing and insulating material produced through the present invention, but also serves to improve sound absorption performance, and the expanded polyolefin pulverized product through the present invention It serves to improve the sound insulation performance of the sound absorbing and insulating material to be manufactured.
이때, 상기 접착제는 에폭시계 또는 우레탄계 접착제로 이루어지는 것이 바람직하다.At this time, the adhesive is preferably made of an epoxy-based or urethane-based adhesive.
상기 성형단계(S105)는 상기 원료혼합단계(S103)를 통해 제조된 혼합물을 금형에 투입하고 성형하는 단계로, 상기 원료혼합단계(S103)를 통해 제조된 혼합물을 금형에 투입하고 110 내지 130℃의 온도에서 5 내지 60분 동안 압축성형하여 이루어진다.The molding step (S105) is a step of injecting and molding the mixture prepared through the raw material mixing step (S103) into a mold, and inserting the mixture prepared through the raw material mixing step (S103) into the mold, and then 110 to 130°C It is made by compression molding for 5 to 60 minutes at a temperature of.
상기 절단단계(S107)는 상기 성형단계(S105)를 통해 성형된 성형물을 절단하는 단계로, 상기의 성형단계(S105)를 통해 다양한 형태 및 두께로 성형된 성형물을 상온으로 냉각한 후에 절단하는 과정으로 이루어진다.The cutting step (S107) is a step of cutting the molded product formed through the molding step (S105), and a process of cutting the molded product formed in various shapes and thicknesses through the molding step (S105) to room temperature and then cutting it. Consists of
또한, 상기 성형단계(S105)와 상기 절단단계(S107) 사이에는 상기 성형단계(S105)를 통해 성형된 성형물에 기공층을 형성하는 핀치롤단계(S106)가 더 진행될 수도 있는데, 상기의 성형단계(S105)를 통해 성형된 성형물에 핀치롤(Pinch roll)공정을 진행하여, 0.1 내지 2mm의 기공을 2 내지 40mm의 거리가 유지되도록 형성하는 단계다.In addition, between the molding step (S105) and the cutting step (S107), a pinch roll step (S106) of forming a pore layer on the molded product formed through the molding step (S105) may be further performed. This is a step of forming a pore of 0.1 to 2 mm to maintain a distance of 2 to 40 mm by performing a pinch roll process on the molded product formed through (S105).
상기의 핀치롤단계(S106)를 거치면 10 내지 104cc/cm2/sec의 통기성을 나타내는 흡차음재가 제공되는데, 상기와 같은 통기성을 나타내는 흡차음재는 흡음성능이 월등하게 향상된다.Through the pinch roll step (S106), a sound absorbing and insulating material exhibiting breathability of 10 to 10 4 cc/cm 2 /sec is provided, and the sound absorbing and insulating material exhibiting breathability as described above has a remarkably improved sound absorbing performance.
이하에서는, 본 발명에 따른 친환경 흡차음재의 제조방법 및 그 제조방법을 통해 제조된 흡차음재의 물성을 실시예를 들어 설명하기로 한다.Hereinafter, a method of manufacturing an eco-friendly sound absorbing and insulating material according to the present invention and the physical properties of the sound absorbing and insulating material manufactured through the manufacturing method will be described by way of examples.
<실시예 1><Example 1>
NBR 발포고무 스크랩(입자크기가 3밀리미터) 100 중량부, 발포 폴리에틸렌 스크랩(입자크기가 3밀리미터) 100 중량부 및 우레탄 접착제 15 중량부를 교반기가 구비된 혼합장치에 투입하고 150rpm의 속도로 15분 동안 교반한 후에, 가로 1미터×세로 2미터×두께 5센티미터인 금형에 투입하고 120℃의 온도로 8분 동안 압축성형 한 후에 상온으로 냉각하고 가로 84센티미터×세로 84센티미터×두께 5센티미터로 절단하여 친환경 흡차음재를 제조하였다.100 parts by weight of NBR foamed rubber scrap (particle size of 3 mm), 100 parts by weight of expanded polyethylene scrap (particle size of 3 mm), and 15 parts by weight of urethane adhesive are put into a mixing device equipped with a stirrer, and at a speed of 150 rpm for 15 minutes. After stirring, put it into a mold with a width of 1 meter × 2 meters × 5 cm thick, compression molding at a temperature of 120°C for 8 minutes, cooling to room temperature, and cutting into 84 cm × 84 cm × 5 cm thick. An eco-friendly sound absorbing and insulating material was manufactured.
<실시예 2><Example 2>
상기 실시예 1과 동일하게 진행하되, 발포 폴리에틸렌 스크랩(입자크기가 3밀리미터) 70 중량부를 혼합하여 친환경 흡차음재를 제조하였다.Proceeding in the same manner as in Example 1, an eco-friendly sound absorbing and insulating material was prepared by mixing 70 parts by weight of expanded polyethylene scrap (particle size of 3 mm).
<실시예 3><Example 3>
상기 실시예 1과 동일하게 진행하되, 발포 폴리에틸렌 스크랩(입자크기가 3밀리미터) 20 중량부를 혼합하여 친환경 흡차음재를 제조하였다.Proceeding in the same manner as in Example 1, an eco-friendly sound absorbing and insulating material was prepared by mixing 20 parts by weight of expanded polyethylene scrap (particle size of 3 mm).
<실시예 4><Example 4>
상기 실시예 1을 통해 제조된 친환경 흡차음재에 핀치롤공정을 진행하여 0.5 mm의 기공이 20mm의 거리가 유지되도록 형성된 친환경 흡차음재를 제조하였다.The eco-friendly sound absorbing and insulating material prepared in Example 1 was subjected to a pinch-roll process to prepare an environment-friendly sound absorbing and insulating material formed such that the pores of 0.5 mm were maintained at a distance of 20 mm.
<실시예 5><Example 5>
상기 실시예 2를 통해 제조된 친환경 흡차음재에 필치롤공정을 진행하여 0.5 mm의 기공이 20mm의 거리가 유지되도록 형성된 친환경 흡차음재를 제조하였다.The eco-friendly sound absorbing and insulating material prepared in Example 2 was subjected to a peel-roll process to prepare an environment-friendly sound absorbing and insulating material formed such that the pores of 0.5 mm were maintained at a distance of 20 mm.
<실시예 6><Example 6>
상기 실시예 3을 통해 제조된 친환경 흡차음재에 필치롤공정을 진행하여 0.5 mm의 기공이 20mm의 거리가 유지되도록 형성된 친환경 흡차음재를 제조하였다.An eco-friendly sound-absorbing and insulating material was prepared so that the pores of 0.5 mm were formed to maintain a distance of 20 mm by performing a peel-roll process on the eco-friendly sound absorbing and insulating material prepared in Example 3.
상기 실시예 1 내지 3을 통해 제조된 친환경 흡차음재의 흡음률을 측정하여 아래 표 1에 나타내었다.The sound absorption coefficients of the eco-friendly sound absorbing and insulating materials manufactured through Examples 1 to 3 were measured and shown in Table 1 below.
{단, 흡음률의 측정은 상기 실시예 1 내지 3을 통해 제조된 흡차음재를 흡음률 측정방법인 표준 잔향실 1/3 축소 크기인 간이잔향실(SRC, Semi Reverberation Chamber)법을 이용하여 3회 측정한 값의 평균으로 나타내었다.}(However, the sound absorption coefficient was measured three times by using the sound absorption and insulating material prepared in Examples 1 to 3 above using the standard reverberation chamber 1/3 reduction size of the standard reverberation chamber (SRC) method. It is expressed as the average of one value.}
상기 표 1에 나타낸 것처럼, 본 발명의 실시예 1 내지 3을 통해 제조된 친환경 흡차음재는 모든 주파수 대역에서 우수한 흡음성능을 나타내는 것을 알 수 있다.As shown in Table 1, it can be seen that the eco-friendly sound absorbing and insulating materials manufactured through Examples 1 to 3 of the present invention exhibit excellent sound absorbing performance in all frequency bands.
특히, NBR 발포고무 스크랩이 다량 함유된 실시예 3를 통해 제조된 흡차음재의 경우 발포 폴리에틸렌 스크랩에 비해 NBR 발포고무 스크랩이 다량 함유되어 흡음성능이 가장 우수한 것을 알 수 있다.In particular, it can be seen that in the case of the sound absorbing and insulating material prepared through Example 3 containing a large amount of NBR foamed rubber scrap, the sound absorbing performance is the most excellent because a large amount of NBR foamed rubber scrap is contained compared to the foamed polyethylene scrap.
또한, 상기 실시예 4 내지 6을 통해 제조된 친환경 흡차음재의 흡음률을 측정하여 아래 표 2에 나타내었다.In addition, the sound absorption coefficient of the eco-friendly sound absorbing and insulating material prepared through Examples 4 to 6 was measured and shown in Table 2 below.
{단, 흡음률의 측정은 상기 실시예 4 내지 6을 통해 제조된 흡차음재를 흡음률 측정방법인 표준 잔향실 1/3 축소 크기인 간이잔향실(SRC, Semi Reverberation Chamber)법을 이용하여 3회 측정한 값의 평균으로 나타내었다.}(However, the sound absorption coefficient was measured three times by using the sound absorption coefficient measurement method of the standard reverberation chamber (SRC, Semi Reverberation Chamber) method, which is a standard reverberation chamber, which is a method of measuring the sound absorption coefficient, using the sound absorption and insulating material prepared in Examples 4 to 6 above. It is expressed as the average of one value.}
상기 표 2에 나타낸 것처럼, 본 발명의 실시예 4 내지 6을 통해 제조된 흡차음재는 핀치롤 공정을 통해 기공층이 형성되어 흡음성능이 더욱 향상되는 것을 알 수 있다.As shown in Table 2, it can be seen that in the sound absorbing and insulating materials manufactured through Examples 4 to 6 of the present invention, a pore layer is formed through a pinch roll process, so that the sound absorption performance is further improved.
또한, 상기 실시예 1 내지 3을 통해 제조된 친환경 흡차음재의 차음률을 측정하여 아래 표 3에 나타내었다.In addition, the sound insulation rates of the eco-friendly sound absorbing and insulating materials manufactured through Examples 1 to 3 were measured and shown in Table 3 below.
{단, 차음률은 실시예 1 내지 3을 통해 제조된 친환경 흡차음재의 감음계수(NRC, Noise Reduction Coefficient)를 확인하는 방법을 이용하였으며, 감음계수는 1/3 옥타브대역으로 측정한 중심주파수 250Hz, 500Hz, 1000Hz, 2000Hz에서의 흠음률 산술평균치이다. 감음계수=1/4(α250+α500+α1000+α2000)}{However, the sound insulation rate was used to determine the noise reduction coefficient (NRC) of the eco-friendly sound absorbing and insulating materials manufactured through Examples 1 to 3, and the attenuation coefficient was measured at a center frequency of 250 Hz in a 1/3 octave band. , It is the arithmetic mean value of the defect rate at 500Hz, 1000Hz, and 2000Hz. Attenuation coefficient=1/4(α250+α500+α1000+α2000)}
상기 표 3에 나타낸 것처럼, 본 발명의 실시예 1 내지 3을 통해 제조된 친환경 흡차음재는 우수한 차음성능을 나타내는 것을 알 수 있다.As shown in Table 3, it can be seen that the eco-friendly sound absorbing and insulating materials manufactured through Examples 1 to 3 of the present invention exhibit excellent sound insulation performance.
특히, NBR 발포고무 스크랩 대비 발포 폴리에틸렌 스크랩이 많이 함유된 실시예 2를 통해 제조된 흡차음재의 차음성능이 가장 우수한 것을 알 수 있다.In particular, it can be seen that the sound insulation performance of the sound absorbing and insulating material prepared through Example 2 containing a lot of foamed polyethylene scraps compared to NBR foamed rubber scraps was the best.
따라서, 본 발명에 따른 친환경 흡차음재의 제조방법은 폐기처분되는 스크랩을 재활용하여 친환경적이며, 중량이 가볍고 우수한 흡차음성능을 나타내는 흡차음재를 제공한다.Therefore, the method of manufacturing an eco-friendly sound absorbing and insulating material according to the present invention provides a sound absorbing and insulating material that is eco-friendly by recycling scrap that is disposed of, and is light in weight and exhibits excellent sound absorbing and insulating properties.
S101 ; 발포고무분쇄단계
S101-1 ; 발포폴리올레핀분쇄단계
S103 ; 원료혼합단계
S105 ; 성형단계
S106 ; 핀치롤단계
S107 ; 절단단계S101; Foamed rubber crushing step
S101-1; Foamed polyolefin grinding step
S103; Raw material mixing step
S105; Molding step
S106; Pinch roll step
S107; Cutting step
Claims (6)
발포폴리올레핀 스크랩을 분쇄하는 발포폴리올레핀분쇄단계;
상기 발포고무분쇄단계를 통해 제조된 발포고무 분쇄물 100 중량부와 상기 발포폴리올레핀분쇄단계를 통해 제조된 발포폴리올레핀 분쇄물 20 내지 70 중량부 및 접착제 10 내지 20 중량부와 혼합하는 원료혼합단계;
상기 원료혼합단계를 통해 제조된 혼합물을 금형에 투입하고 성형하는 성형단계;
상기 성형단계를 통해 성형된 성형물에 기공층을 형성하는 핀치롤단계; 및
상기 성형단계를 통해 성형된 성형물을 절단하는 절단단계;로 이루어지는 것을 특징으로 하는 친환경 흡차음재의 제조방법.Foam rubber crushing step of pulverizing foam rubber scrap;
Expanded polyolefin crushing step of pulverizing expanded polyolefin scrap;
A raw material mixing step of mixing 100 parts by weight of the pulverized foamed rubber prepared through the foamed rubber pulverization step, 20 to 70 parts by weight of the pulverized expanded polyolefin prepared through the foamed polyolefin pulverizing step, and 10 to 20 parts by weight of an adhesive;
A molding step of injecting and molding the mixture prepared through the raw material mixing step into a mold;
A pinch roll step of forming a pore layer on the molded article formed through the molding step; And
A method of manufacturing an eco-friendly sound absorbing and insulating material comprising a; cutting step of cutting the molded product formed through the molding step.
상기 발포고무 분쇄물과 상기 발포폴리올레핀 분쇄물은 2 내지 5mm의 입자크기를 나타내는 것을 특징으로 하는 친환경 흡차음재의 제조방법.The method according to claim 1,
The foamed rubber pulverized product and the expanded polyolefin pulverized product have a particle size of 2 to 5mm.
상기 접착제는 에폭시계 또는 우레탄계로 이루어지는 것을 특징으로 하는 친환경 흡차음재의 제조방법.The method according to claim 1,
The adhesive is a method of manufacturing an eco-friendly sound absorbing and insulating material, characterized in that made of epoxy-based or urethane-based.
상기 성형단계는 110 내지 130℃의 온도에서 5 내지 60분 동안 이루어지는 것을 특징으로 하는 친환경 흡차음재의 제조방법.The method according to claim 1,
The molding step is a method of manufacturing an eco-friendly sound absorbing and insulating material, characterized in that made for 5 to 60 minutes at a temperature of 110 to 130 ℃.
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| WO2006123195A1 (en) | 2005-05-18 | 2006-11-23 | Bera Pal | Procedure for producing insulating building units from plastic and/or rubber waste containing metal |
| KR100949783B1 (en) | 2008-11-06 | 2010-03-30 | 엔브이에이치코리아(주) | Headliner of having a height acoustic-absorptivity for vehicle |
| KR100950604B1 (en) * | 2008-12-24 | 2010-04-01 | 엔브이에이치코리아(주) | Sound-absorbing materials for automobile interior |
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| KR101031761B1 (en) | 2009-05-08 | 2011-04-29 | 주식회사 화인텍 | A sound absorption panel use for constrution |
| KR101119958B1 (en) * | 2009-10-08 | 2012-03-16 | 사단법인 한국화재보험협회 | An insulation board manufacturing method |
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| WO2006123195A1 (en) | 2005-05-18 | 2006-11-23 | Bera Pal | Procedure for producing insulating building units from plastic and/or rubber waste containing metal |
| KR100949783B1 (en) | 2008-11-06 | 2010-03-30 | 엔브이에이치코리아(주) | Headliner of having a height acoustic-absorptivity for vehicle |
| KR100950604B1 (en) * | 2008-12-24 | 2010-04-01 | 엔브이에이치코리아(주) | Sound-absorbing materials for automobile interior |
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