KR101107720B1 - Process of synthetic wood through recycling polyurethane and synthetic wood product obtained therefrom - Google Patents
Process of synthetic wood through recycling polyurethane and synthetic wood product obtained therefrom Download PDFInfo
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- KR101107720B1 KR101107720B1 KR1020110037254A KR20110037254A KR101107720B1 KR 101107720 B1 KR101107720 B1 KR 101107720B1 KR 1020110037254 A KR1020110037254 A KR 1020110037254A KR 20110037254 A KR20110037254 A KR 20110037254A KR 101107720 B1 KR101107720 B1 KR 101107720B1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0218—Mixing the material with binding agent in rotating drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/029—Feeding; Proportioning; Controlling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
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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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
Abstract
Description
본 발명은 재생 열경화성의 폐 폴리우레탄을 결합재로 활용하면서 합성목재를 제조하는 방법에 관한 것이다.
The present invention relates to a method for producing synthetic wood while utilizing recycled thermosetting waste polyurethane as a binder.
폴리우레탄은 경량, 고강도, 고탄력을 비롯하여 내수, 내식, 내충격, 내알칼리, 내산, 절연성 등의 장점이 있어 건축재료를 비롯하여 넓은 분야에 많이 사용되고 있다. 따라서 많은 량의 폐 폴리우레탄 또한 해마다 증가하고 있는 추세이다.Polyurethane has many advantages such as light weight, high strength, high elasticity, water resistance, corrosion resistance, impact resistance, alkali resistance, acid resistance, insulation, and many other fields. Therefore, a large amount of waste polyurethane is also increasing year by year.
폴리우레탄은 분자구조가 가교결합을 통한 3차원 그물구조를 형성하는 열경화성 수지이기 때문에 열 또는 에너지를 가하여도 용융되지 않아 재활용에 어려움이 있다. 폐 폴리우레탄은 보통 소각법, 매립법, 재활용법에 의해 처리되는데, 소각법은 소각과정에서 각종 유해 물질의 발생하여 대기오염을 초래하고 매립법은 토질오염이라는 2차적인 환경오염을 가져오므로 친환경적인 재활용법에 의한 처리가 바람직하다.Since polyurethane is a thermosetting resin whose molecular structure forms a three-dimensional network through crosslinking, it is difficult to recycle because it is not melted even when heat or energy is applied. Waste polyurethane is usually treated by incineration, landfill, or recycling.Incineration generates various harmful substances in the incineration process, resulting in air pollution, while landfilling is a secondary environmental pollution called soil pollution. The treatment by the recycling method is preferable.
폐 폴리우레탄을 재활용하기 위한 방법으로 다양한 방법들이 개발된 바 있으나, 대부분 열가소성 폐 폴리우레탄을 단독 재생하거나 열경화성 폐 폴리우레탄과 함께 재생하는데 머물러 열경화성 폐 폴리우레탄을 단독으로 효과적으로 재생하기 위한 연구가 필요한 실정이다. 이와 같은 필요에 따라 본 발명자는 열경화성 폐 폴리우레탄을 단독으로 개발하여 특허출원 제10-2010-0118940호로 출원한 바 있다.
Various methods have been developed to recycle the waste polyurethane, but most of the researches are needed to effectively recycle the thermosetting waste polyurethane by remaining in the thermoplastic waste polyurethane alone or in conjunction with the thermosetting waste polyurethane. to be. In accordance with such a necessity, the present inventor has developed a thermosetting waste polyurethane alone and has applied for a patent application No. 10-2010-0118940.
한편 합성목재는 목재부스러기(대패밥·톱밥)를 각종 수지와 혼합 성형하여 천연목재와 비슷한 외관이나 성질을 갖게 제조한 자재로서, 천연목재 자원이 점차 감소함에 따라 수요가 늘고 있다. 일반적으로 합성목재는 올레핀계 열가소성 수지(PE+PP)를 이용하여 제조하여 왔다. 올레핀계 열가소성 수지는 유해물질의 배출이 없고 수분과 미생물에 대한 저항성이 좋고 가공성이 뛰어나나, 기계적 강도와 열안정성이 취약한 단점이 있기 때문에, 종래 합성목재는 강도와 내열성에서 단점을 안고 있다.
On the other hand, synthetic wood is a material manufactured by mixing and shaping wood chips (scallops and sawdust) with various resins and having similar appearance and properties to natural wood, and demand is increasing as natural wood resources gradually decrease. Generally, synthetic wood has been manufactured using an olefinic thermoplastic resin (PE + PP). Olefin-based thermoplastic resins have no drawbacks of harmful substances, have good resistance to moisture and microorganisms, and are excellent in processability, but have weak disadvantages in mechanical strength and thermal stability.
본 발명은 상기한 바와 같이 종래 폐 폴리우레탄의 재활용방법에 대한 문제를 개선하는 한편 합성목재의 수요 증대에 부응하여 강도와 내열성에서 우수한 새로운 합성목재를 제안하고자 개발된 것으로서, 고가의 첨가제를 적게 사용하면서 열경화성 폐 폴리우레탄을 재생하는 한편 재생 열경화성의 폐 폴리우레탄을 이용하면서 합성목재를 제조하는 방법을 제공하는데 기술적 과제가 있다.
The present invention was developed to propose a new synthetic wood with excellent strength and heat resistance in response to the increased demand for synthetic wood while improving the problem of the recycling method of the conventional waste polyurethane as described above, using less expensive additives While there is a technical problem to provide a method for producing a synthetic wood while recycling the thermosetting waste polyurethane while using a regenerative thermosetting waste polyurethane.
상기한 기술적 과제를 해결하기 위해 본 발명은, 회전식 교반기에 열경화성 폐 폴리우레탄 분쇄물과 디메틸아세트아미드(DMAC)를 투입하여 용융시키는 용융단계; 상기 용융단계가 진행되는 회전식 교반기에, 목분을 투입하여 혼합하는 혼합단계; 혼합물을 성형하는 성형단계;로 이루어지되, 목분 100중량부에 폐 폴리우레탄 분쇄물 80~100중량부, 디메틸아세트아미드(DMAC) 0.1~1중량부를 이용하면서 이루어지는 것을 특징으로 하는 열경화성 폐 폴리우레탄의 재생을 통한 친환경 합성목재의 제조방법을 제공한다. 여기서 상기 성형단계를 판재로 성형하면서 진행하면 합성목재판으로 제조되고, 상기 성형단계를 판재로 성형하면서 진행하고 이어 성형품을 분쇄하여 칩으로 생산하는 분쇄단계를 더 진행하면 합성목재칩으로 제조된다.
In order to solve the above technical problem, the present invention, the melting step of melting by adding a thermosetting waste polyurethane pulverized product and dimethylacetamide (DMAC) in a rotary stirrer; A mixing step of mixing wood powder into a rotary stirrer in which the melting step is performed; Molding step of forming a mixture; consisting of 100 parts by weight of wood waste polyurethane 80 to 100 parts by weight, dimethylacetamide (DMAC) of the thermosetting waste polyurethane, characterized in that made using 0.1 to 1 parts by weight of It provides a method for manufacturing eco-friendly synthetic wood through recycling. Wherein the molding step proceeds while molding from a plate made of a synthetic wood board, proceeds while forming the molding step into a plate and then proceeds to the crushing step of pulverizing the molded product to produce a chip is made of synthetic wood chips.
본 발명에 따르면 다음과 같은 효과를 기대할 수 있다.According to the present invention, the following effects can be expected.
첫째, 열경화성 폐 폴리우레탄을 간편하게 재생하여 사용할 수 있으며, 이에 따라 산업 폐기물을 줄이고 환경 보호를 이끌 수 있다. 고가의 첨가제의 사용량을 줄이고 아울러 열가소성 폐 폴리우레탄을 사용하지 않으면서도 열경화성 폐 폴리우레탄을 재생할 수 있기 때문에, 경제적으로 열경화성 폐 폴리우레탄을 재생할 수 있다.First, the thermosetting waste polyurethane can be easily recycled and used, thereby reducing industrial waste and leading to environmental protection. Since the amount of expensive additives is reduced and the thermosetting waste polyurethane can be recycled without using the thermoplastic waste polyurethane, it is possible to economically recycle the thermosetting waste polyurethane.
둘째, 재생 열경화성 폐 폴리우레탄을 결합재로 이용하면서 합성목재를 제조하여 제공할 수 있다. 나아가 기능성 첨가제의 적절한 사용으로 친환경성을 강화하거나 색상조절을 할 수 있기 때문에 합성목재의 품질 향상이 가능해진다.
Second, while using a regenerative thermosetting waste polyurethane as a binder can be produced by providing a synthetic wood. Furthermore, the proper use of functional additives can enhance the eco-friendliness or color control, thereby improving the quality of synthetic wood.
본 발명은 용융시켜 재생한 후에 열경화성 폐 폴리우레탄을 결합재로 이용하면서 합성목재를 제조하는데 특징이 있다. 구체적으로 본 발명에 따른 합성목재 제조방법은, 회전식 교반기에 열경화성 폐 폴리우레탄 분쇄물과 디메틸아세트아미드(DMAC)를 투입하여 용융시키는 용융단계; 상기 용융단계가 진행되는 회전식 교반기에, 목분을 투입하여 혼합하는 혼합단계; 혼합물을 성형하는 성형단계;로 이루어지되, 목분 100중량부에 폐 폴리우레탄 분쇄물 80~100중량부, 디메틸아세트아미드(DMAC) 0.1~1중량부를 이용하면서 이루어지는 것을 특징으로 한다. 재료들은 용융단계를 진행하기 전에 미리 계량하여 준비한다.
The present invention is characterized by producing a synthetic wood while using the thermosetting waste polyurethane as a binder after melting and regeneration. Specifically, the method for producing a synthetic wood according to the present invention includes a melting step of melting a thermosetting waste polyurethane pulverized product and dimethylacetamide (DMAC) into a rotary stirrer; A mixing step of mixing wood powder into a rotary stirrer in which the melting step is performed; Molding step of forming a mixture; consisting of, 100 to 100 parts by weight of the powdered polyurethane waste, 80 to 100 parts by weight, dimethylacetamide (DMAC) characterized in that made using 0.1 to 1 parts by weight. Materials are weighed and prepared before proceeding with the melting step.
용융단계는 내부온도가 140~210℃로 유지되는 고온 고압의 회전식 교반기에 열경화성 폐 폴리우레탄 분쇄물(20mm 이하 정도)을 디메틸아세트아미드(DMAC)와 함께 투입하여 10~30분간 진행하며, 이때 디메틸아세트아미드는 열경화성 폐 폴리우레탄의 용해제가 되는데 용융단계에서 용융시키는 열경화성 폐 폴리우레탄 분쇄물의 0.1~1중량% 정도이면 적당하다. In the melting step, the thermosetting waste polyurethane pulverized product (about 20mm or less) is added together with dimethylacetamide (DMAC) to a high-temperature, high-pressure rotary stirrer whose internal temperature is maintained at 140 to 210 ° C. Acetamide becomes a solubilizer for thermosetting waste polyurethane, and is preferably about 0.1 to 1% by weight of the thermosetting waste polyurethane pulverized in the melting step.
특히 본 발명에서는 용융단계를, 물성이 다른 폴리에스테르 계열과 폴리에테르 계열을 구분하여 단계적으로 진행할 것을 제안한다. 다시 말해 용융단계를, 열경화성 폐 폴리우레탄 분쇄물을 폴리에스테르 계열과 폴리에테르 계열을 구분하는 재료선별단계; 폴리에스테르 계열의 열경화성 폐 폴리우레탄 분쇄물과 메틸아세트아미드(DMAC)를 투입하여 용융시키는 1차 용융단계; 상기 1차 용융단계가 진행되는 회전식 교반기에, 폴리에테르 계열의 열경화성 폐 폴리우레탄 분쇄물을 투입하는 2차 용융단계;로 세분하여 진행하는 것이다. 보통 폴리에테르 계열이 폴리에스테르 계열보다 밀도가 작으면서 탄성이 우수한데, 두 계열을 혼합 재생하여 서로의 장점을 강화하면서 단점을 보완하고 아울러 밀도가 큰 폴리에스테르 계열을 먼저 용융시키고 밀도가 작은 폴리에테르 계열을 나중에 용융시켜 효율적으로 재생할 수 있도록 한 것이다. 폴리에스테르 계열과 폴리에테르 계열은 각각 10~90중량% 범위 내에서 적절한 양으로 혼합하면 된다.In particular, the present invention proposes to proceed step by step to separate the polyester series and the polyether series having different physical properties. In other words, the melting step, the material selection step of separating the thermosetting waste polyurethane pulverized polyester series and polyether series; A primary melting step of melting by adding polyester-based thermosetting waste polyurethane pulverized product and methyl acetamide (DMAC); In the rotary stirrer in which the primary melting step is performed, a secondary melting step of introducing a polyether-based thermosetting waste polyurethane pulverized product; is divided into two parts. Normally, the polyester series is less dense than the polyester series and has better elasticity. The two series are mixed and regenerated to reinforce each other's advantages and to compensate for the disadvantages. The series was later melted for efficient regeneration. What is necessary is just to mix polyester series and polyether series in the appropriate quantity within 10 to 90weight% each.
1차 용융단계와 2차 용융단계는 내부온도가 140~210℃로 유지되는 고온 고압의 회전식 교반기에서 각각 10~15분간 진행한다. 교반기에서 폴리에스테르 계열의 열경화성 폐 폴리우레탄 분쇄물의 용융이 이미 진행되기 때문에 폴리에테르 계열의 열경화성 폐 폴리우레탄 분쇄물이 투입되면 서로 용융되면서 교반된다(융합). 2차 용융단계에서 용융시키는 폴리에스테르 계열의 열경화성 폐 폴리우레탄 분쇄물이 1차 용융단계에서 용융시키는 폴리에스테르 계열의 열경화성 폐 폴리우레탄 분쇄물보다 상대적으로 많은 경우에는 폴리에스테르 계열의 열경화성 폐 폴리우레탄 분쇄물을 적절한 양으로 나누어 투입 용융하도록 한다.
The first melting step and the second melting step are performed for 10 to 15 minutes in a high temperature and high pressure rotary stirrer where the internal temperature is maintained at 140 ~ 210 ℃. Since melting of the polyester-based thermosetting waste polyurethane pulverization has already proceeded in the stirrer, when the polyether-based thermosetting waste polyurethane pulverization is introduced, the mixture is melted and stirred (fusion). If the polyester-based thermoset waste polyurethane pulverized in the second melting step is relatively more than the polyester-based thermoset waste polyurethane pulverized in the primary melting step, the polyester-based thermoset waste polyurethane pulverized Divide the water in appropriate quantities to allow for melting.
혼합단계는 용융이 진행되는 교반기에 목분(0.8~2.1mm 정도)을 투입하여 교반한다. 목분 100중량부에 폐 폴리우레탄 분쇄물 80~100중량부로 혼합하도록 하며, 폐 폴리우레탄 분쇄물이 이보다 많으면 목재질감이 떨어지고 무거워 취급이 어려워지고, 적으면 물성과 내수성이 떨어질 우려가 있다.In the mixing step, the wood powder (0.8 ~ 2.1mm) is added to the stirrer to be melted and stirred. 100 parts by weight of wood powder is mixed with 80 to 100 parts by weight of waste polyurethane, and if the amount of waste polyurethane is more than this, the texture of wood is heavy and heavy, making it difficult to handle.
또한 혼합단계는 황토, 숯, 게르마늄, 안료, 야광, 형광 중에서 하나 이상 선택된 기능성 첨가제를 추가 투입하면서 진행할 수도 있으며, 이때 기능성 첨가제는 목분의 1~30중량%가 적당하다. 황토, 숯, 게르마늄은 친환경성을 부여하기 위한 기능성 첨가제로서 목분의 0.5~20중량%로 사용하며, 안료, 야광, 형광은 색상 조절을 위한 기능성 첨가제로서 목분의 0.5~10중량%로 사용한다.
In addition, the mixing step may proceed with the addition of one or more selected functional additives of ocher, charcoal, germanium, pigments, luminous, fluorescence, wherein the functional additives are suitable 1 ~ 30% by weight of wood powder. Ocher, charcoal, and germanium are used as functional additives to provide eco-friendliness in the amount of 0.5 to 20% by weight of wood powder, and pigments, luminous and fluorescence are used as 0.5 to 10% by weight of wood powder as functional additives for color control.
성형단계는 겔상태로 혼합된 혼합물을 일정한 모양으로 만드는 과정이 되며, 성형단계는 통상의 합성목재 성형방법으로 수행하면 된다. 즉, 사용 목적이나 용도에 따라 성형로울러 등을 이용하여 일정한 두께를 가지는 판재로 압출성형하거나, 일정한 모양을 가지는 제품으로 사출성형한다. 나아가 판재로 성형한 다음에 분쇄하여 칩으로 생산하는 분쇄단계를 더 진행할 수 있는데, 이 과정으로 합성목재칩을 생산할 수 있다. 이렇게 생산된 합성목재칩은 건축자재로 바람직하게 이용할 수 있다.
The molding step is a process of making a mixture in a gel state into a uniform shape, the molding step may be performed by a conventional synthetic wood molding method. That is, according to the purpose or purpose of use, extrusion molding is carried out to a plate having a certain thickness using a molding roller, or injection molding into a product having a certain shape. Furthermore, the pulverization step of forming a chip and then pulverizing it into a chip can be further performed. This process can produce synthetic wood chips. The synthetic wood chips thus produced can be preferably used as building materials.
이하 본 발명을 실시예에 의해 상세히 설명한다. 다만 실시예는 본 발명을 예시하는 것일 뿐이며, 본 발명의 범위가 실시예에 의해 한정되는 것은 아니다.
Hereinafter, the present invention will be described in detail by way of examples. However, the examples are merely to illustrate the invention, but the scope of the present invention is not limited by the examples.
[실시예1] 합성목재 제조Example 1 Synthetic Wood Preparation
(1)재료준비(1) Material Preparation
재생할 열경화성 폐 폴리우레탄을 수거 분쇄하여 20㎜ 이하의 분쇄물로 준비하는 한편 디메틸아세트아미드, 목분, 황토, 숯, 게르마늄을 준비하는데, 목분 100중량부에 열경화성 폐 폴리우레탄 분쇄물 90중량부, 디메틸아세트아미드 0.9중량부, 황토 5중량부, 숯 5중량부, 게르마늄 5중량부, 안료 1중량부 준비하였다.Collect and pulverize the recycled thermosetting waste polyurethane to prepare a pulverized product of 20 mm or less, and prepare dimethylacetamide, wood flour, loess, charcoal, and germanium. 0.9 parts by weight of acetamide, 5 parts by weight of ocher, 5 parts by weight of charcoal, 5 parts by weight of germanium, and 1 part by weight of pigment were prepared.
(2)용융(2) melting
내부온도가 140~210℃로 유지되는 회전식 교반기에 열경화성 폐 폴리우레탄을 디메틸아세트아미드와 함께 투입하여 10~15분간 용융시킨다. The thermosetting waste polyurethane is added together with dimethylacetamide in a rotary stirrer in which the internal temperature is maintained at 140 to 210 ° C. and melted for 10 to 15 minutes.
(3)혼합(3) mixing
목분을 투입하여 5~15분간 교반하고, 마지막으로 황토, 숯, 게르마늄, 안료를 투입하여 3~5분간 교반한다. Add wood flour and stir for 5 to 15 minutes. Finally, ocher, charcoal, germanium and pigment are added and stirred for 3 to 5 minutes.
(4)성형 및 분쇄(4) forming and grinding
겔상태로 혼합된 혼합물을 5~15㎜ 두께의 판재로 성형하면 합성목재판이 완성되고, 이를 다시 분쇄기로 15㎜ 크기 이하로 분쇄하면 합성목재칩이 완성된다.
When the mixture mixed in a gel state is molded into a sheet of 5 to 15 mm thick, the synthetic wood board is completed. When the mixture is pulverized to a size of 15 mm or less with a grinder, the synthetic wood chips are completed.
[실시예2] 합성목재 시편의 물성 비교Example 2 Comparison of Properties of Synthetic Wood Specimen
상기 [실시예1]에 따라 완성된 15mm 두께의 합성목재판과 종래 일반적으로 사용하는 15mm 두께의 합성목재판에 대하여 물성을 비교 조사하였다. 조사 결과는 하기 [표 1]과 같다. 보는 바와 같이 본 발명에 따라 제조된 합성목재판은 종래의 것과 동등 수준의 물성을 나타내며, 특히 휨강도는 종래 이상으로 나타내고 있다. 이에 따라 본 발명에 따라 제조된 합성목재판은 친환경 건설자재로 바람직하게 사용할 수 있다. The physical properties of the 15-mm-thick synthetic wood board completed according to Example 1 and the 15-mm-thick synthetic wood board conventionally used were examined. The investigation results are shown in the following [Table 1]. As can be seen, the synthetic wood board produced according to the present invention exhibits the same level of physical properties as the conventional one, and particularly the flexural strength is shown above the conventional one. Accordingly, the synthetic wood board prepared according to the present invention can be preferably used as an environmentally friendly construction material.
Claims (7)
회전식 교반기에 폴리에스테르 계열의 열경화성 폐 폴리우레탄 분쇄물과 메틸아세트아미드(DMAC)를 투입하여 용융시키는 1차 용융단계;
상기 1차 용융단계가 진행되는 회전식 교반기에, 폴리에테르 계열의 열경화성 폐 폴리우레탄 분쇄물을 투입하는 2차 용융단계;
상기 2차 용융단계가 진행되는 회전식 교반기에, 목분을 투입하여 교반하는 혼합단계;
혼합물을 성형하는 성형단계;로 이루어지되,
목분 100중량부에 폐 폴리우레탄 분쇄물 80~100중량부, 디메틸아세트아미드(DMAC) 0.1~1중량부를 이용하면서 이루어지는 것을 특징으로 하는 열경화성 폐 폴리우레탄의 재생을 통한 친환경 합성목재의 제조방법.A material selection step of dividing the thermosetting waste polyurethane ground product into a polyester series and a polyether series;
A primary melting step of melting by adding a polyester-based thermosetting waste polyurethane pulverized product and methyl acetamide (DMAC) to a rotary stirrer;
A secondary melting step of introducing a polyether-based thermosetting waste polyurethane pulverized product into a rotary stirrer in which the primary melting step is performed;
A mixing step of stirring by adding wood powder to a rotary stirrer in which the secondary melting step is performed;
Molding step of molding the mixture;
A method for producing environmentally friendly synthetic wood through regeneration of thermosetting waste polyurethane, characterized in that while using 80 to 100 parts by weight of waste polyurethane pulverized product, 0.1 to 1 part by weight of dimethylacetamide (DMAC).
상기 혼합단계는, 황토, 숯, 게르마늄, 안료, 야광, 형광 중에서 하나 이상 선택된 기능성 첨가제를 추가 투입하면서 이루어지되,
기능성 첨가제는 목분 100중량부에 대하여 1~30중량부로 이용하면서 이루어지는 것을 특징으로 하는 열경화성 폐 폴리우레탄의 재생을 통한 친환경 합성목재의 제조방법.In claim 2,
The mixing step is made by adding an additional functional additive selected from one or more of ocher, charcoal, germanium, pigments, luminous, fluorescence,
Functional additive is a method for producing an environmentally friendly synthetic wood through the regeneration of the thermosetting waste polyurethane, characterized in that made from 1 to 30 parts by weight based on 100 parts by weight of wood powder.
상기 성형단계는, 판재로 성형하면서 이루어져 합성목재판으로 제조하는 것을 특징으로 하는 열경화성 폐 폴리우레탄의 재생을 통한 친환경 합성목재의 제조방법.3. The method according to claim 2 or 3,
The molding step is a method of producing an environmentally friendly synthetic wood through the regeneration of the thermosetting waste polyurethane, characterized in that the molding made of a wood plate made of synthetic wood.
상기 성형단계는, 판재로 성형하면서 이루어지고,
상기 성형단계 이후에, 성형품을 분쇄하여 칩으로 생산하는 분쇄단계;를 더 포함하여 이루어져 합성목재칩으로 제조하는 것을 특징으로 하는 열경화성 폐 폴리우레탄의 재생을 통한 친환경 합성목재의 제조방법.3. The method according to claim 2 or 3,
The forming step is made while forming a plate,
After the molding step, the step of pulverizing the molded article to produce a chip; further comprising a method for producing an environmentally friendly synthetic wood through the regeneration of the thermosetting waste polyurethane, characterized in that the production of synthetic wood chips.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101292301B1 (en) | 2013-03-04 | 2013-08-01 | 대성우드 주식회사 | Reinforcement chip for synthetic wood and it self |
| KR102216394B1 (en) | 2020-04-17 | 2021-02-17 | (주)정우하우징 | Environmentally Friendly Recycled Building Materials and Their Manufacturing Method of Mixed Waste Building Materials with Sterilized Purified Plants |
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| KR100424424B1 (en) * | 2001-06-04 | 2004-03-24 | 장기운 | Regeneration method of useless polyurethan resin |
| KR100974450B1 (en) * | 2009-03-27 | 2010-08-06 | 주식회사 넥스텍 | Method for preparing artificial leather using recycled polyurethane waste and method of preparing recycled polyurethane resin for artificial leather |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100424424B1 (en) * | 2001-06-04 | 2004-03-24 | 장기운 | Regeneration method of useless polyurethan resin |
| KR100974450B1 (en) * | 2009-03-27 | 2010-08-06 | 주식회사 넥스텍 | Method for preparing artificial leather using recycled polyurethane waste and method of preparing recycled polyurethane resin for artificial leather |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101292301B1 (en) | 2013-03-04 | 2013-08-01 | 대성우드 주식회사 | Reinforcement chip for synthetic wood and it self |
| KR102216394B1 (en) | 2020-04-17 | 2021-02-17 | (주)정우하우징 | Environmentally Friendly Recycled Building Materials and Their Manufacturing Method of Mixed Waste Building Materials with Sterilized Purified Plants |
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