KR101307194B1 - A biodegradable plastic composition - Google Patents
A biodegradable plastic composition Download PDFInfo
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- KR101307194B1 KR101307194B1 KR1020120024433A KR20120024433A KR101307194B1 KR 101307194 B1 KR101307194 B1 KR 101307194B1 KR 1020120024433 A KR1020120024433 A KR 1020120024433A KR 20120024433 A KR20120024433 A KR 20120024433A KR 101307194 B1 KR101307194 B1 KR 101307194B1
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/16—Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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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
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
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Abstract
Description
본 발명은 숯이 함유된 생분해 플라스틱 조성물에 관한 것으로서, 보다 상세하게는 견고하면서도 탄성과 유연성이 우수하고 자연계의 미생물에 의해 생분해됨으로써 친환경적이며, 숯이 함유됨으로써 항균, 탈취 등의 효과를 가지는 생분해 플라스틱 조성물 및 이를 이용하여 제조된 성형품에 관한 발명이다.
The present invention relates to a biodegradable plastic composition containing charcoal, and more particularly, it is durable, elastic and flexible, and biodegradable by biodegradation by natural microorganisms, and it is biodegradable plastic having effects such as antibacterial and deodorization by containing charcoal. The invention relates to a composition and a molded article produced using the same.
플라스틱류는 가볍고 단단하며 가공성이 용이한 장점으로 인하여 생활용품, 의료용품, 자동차 부품 및 건축자재 등 여러 산업분야에서 널리 이용되고 있으며, 그 사용량도 늘어나고 있다.
Plastics are widely used in various industries such as household goods, medical supplies, automobile parts, and building materials due to their light, hard and easy processing, and their usage is also increasing.
그러나, 이러한 플라스틱 소재는 간편하게 쓸 수 있고 산업발달에 큰 공헌을 해 온 반면에, 자연적으로 쉽게 분해가 되지 않아 이를 처분하고 관리하는 문제가 세계 각국의 커다란 사회문제로 대두되었다.
However, while these plastic materials are easy to use and have made a great contribution to industrial development, they are not easily decomposed naturally, and the problem of disposing and managing them has become a big social problem in the world.
종래에 플라스틱 폐기물을 처리하기 위한 방법으로는 매립과 소각, 재활용 등의 방법을 취해왔으나, 매립의 경우 통상의 플라스틱은 미생물에 의해 분해되지 않으므로 토양오염의 주범이 되고 또한 매립공간의 한계성이 있으며, 소각의 경우는 연소 잔유물 및 유독가스 등에 의한 2차 공해가 수반된다.
Conventionally, methods for treating plastic waste have been landfilled, incinerated, recycled, etc. However, in the case of landfilling, since ordinary plastics are not decomposed by microorganisms, they are the main culprit of soil pollution and have a limited amount of landfill space. Incineration involves secondary pollution from combustion residues and toxic gases.
따라서, 최근에는 환경보존의 필요성 및 중요성에 대한 관심이 증대되면서 이러한 문제를 원천적으로 해결할 수 있는 생분해성 플라스틱에 관한 연구 및 개발이 활발해지고 있다.
Therefore, in recent years, with increasing interest in the necessity and importance of environmental preservation, research and development on biodegradable plastics that can solve these problems at the source has been active.
본 발명의 플라스틱 조성물에 의해 성형된 성형품은 견고하면서도 소정의 기간이 소요되면 생분해가 되도록 하는데 그 목적이 있다.
The molded article molded by the plastic composition of the present invention is intended to be biodegradable when a certain period of time is durable.
또한, 본 발명의 플라스틱 조성물에 의해 성형된 성형품은 습기제거 효과 및 항균, 살균, 탈취 등의 기능을 가지도록 하는데 다른 목적이 있다.
In addition, the molded article molded by the plastic composition of the present invention has another purpose to have a function such as moisture removal effect and antibacterial, sterilization, deodorization.
본 발명은 상기와 같은 목적을 달성하기 위해 참숯 분말 20~30중량부, 옥수수전분 또는 쌀전분 10~15중량부, 무기질 필러 5~10중량부, 그라프트제 3중량부, 생분해효소 5~10중량부, 실란트(sealant) 15~20중량부, 습윤제, 증점제, 암모니아, 알코올, 목초액의 혼합으로 되는 첨가제 10중량부, 폴리프로필렌(PP)와 폴리에틸렌(PE)과 폴리스틸렌(PS)과 폴리염화비닐(PVC)과 아크릴수지 군으로부터 선택되어 지는 어느 하나의 열가소성수지 30~40중량부로 이루어지는 것을 생분해 플라스틱 조성물이 제공된다.
The present invention 20 to 30 parts by weight of true charcoal powder, 10 to 15 parts by weight of corn starch or rice starch, 5 to 10 parts by weight of inorganic filler, 3 parts by weight of graft agent, 5 to 10 parts by weight of biodegradable enzyme to achieve the above object. 15-20 parts by weight of sealant, 10 parts by weight of a wetting agent, thickener, ammonia, alcohol, wood vinegar mixture, polypropylene (PP), polyethylene (PE), polystyrene (PS) and polyvinyl chloride ( It is provided with a biodegradable plastic composition consisting of 30 to 40 parts by weight of any one thermoplastic resin selected from the group of PVC) and acrylic resin.
본 발명의 다른 실시예로는, 참숯 분말 20~30중량부, 옥수수전분 또는 쌀전분 10~15중량부, 무기질 필러 5~10중량부, 그라프트제 3중량부, 생분해효소 5~10중량부, 실란트(sealant) 15~20중량부, 습윤제, 증점제, 암모니아, 알코올, 목초액의 혼합으로 되는 첨가제 10중량부, 열가소성 폴리우레탄(TPU) 30~40중량부로 이루어지는 생분해 플라스틱 조성물의 제공이 가능하다.
In another embodiment of the present invention, 20 to 30 parts by weight of charcoal powder, 10 to 15 parts by weight of corn starch or rice starch, 5 to 10 parts by weight of inorganic filler, 3 parts by weight of graft agent, 5 to 10 parts by weight of biodegradable enzyme, It is possible to provide a biodegradable plastic composition comprising 15 to 20 parts by weight of a sealant, 10 parts by weight of an additive comprising a wetting agent, a thickener, ammonia, alcohol, wood vinegar, and 30 to 40 parts by weight of a thermoplastic polyurethane (TPU).
바람직하게는, 상기 생분해 플라스틱 조성물에 천연 제올라이트 분말 20중량부와 모데나이트 원석분말 15중량부 및 귀양석 원석 분말 15중량부가 더 포함되는 것을 특징으로 한다.
Preferably, the biodegradable plastic composition further comprises 20 parts by weight of natural zeolite powder, 15 parts by weight of mordenite ore powder and 15 parts by weight of precious stone gemstone powder.
바람직하게는, 상기 생분해 플라스틱 조성물에 알루미나(Al₂O₃) 10중량부가 더 포함되는 것을 특징으로 한다.
Preferably, the biodegradable plastic composition is characterized in that it further comprises 10 parts by weight of alumina (Al₂O₃).
바람직하게는, 상기 생분해 플라스틱 조성물에 규산칼륨(K₂SiO₃)과 규산나트륨(Na₂SiO₃) 혼합물 5중량부가 더 포함되는 것을 특징으로 한다.
Preferably, the biodegradable plastic composition further comprises 5 parts by weight of a mixture of potassium silicate (K₂SiO₃) and sodium silicate (Na₂SiO₃).
본 발명의 플라스틱 조성물에 의해 성형된 성형품은 견고하면서도 생분해 효과를 가진다.
The molded article molded by the plastic composition of the present invention has a robust and biodegradable effect.
또한, 본 발명은 습기제거 효과 및 항균, 살균, 탈취 등의 기능을 가지는 플라스틱 성형품의 제작이 가능하다.
In addition, the present invention is capable of producing a plastic molded article having a function of removing moisture and antibacterial, sterilizing, deodorizing and the like.
이하, 본 발명의 가장 바람직한 일 실시예의 구성을 보다 상세히 설명하며, 본 발명은 이하 설명되는 실시예를 통해 더욱 명확하게 설명될 것이다.
Hereinafter, the configuration of the most preferred embodiment of the present invention will be described in more detail, the present invention will be described more clearly through the embodiments described below.
본 명세서의 상세한 설명 및 청구범위에 사용된 용어나 단어는 발명자가 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있는 것이므로, 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 할 것이다.The terms or words used in the specification and claims herein are to be interpreted in a general or dictionary sense, because the inventor can appropriately define the concept of the term in order to best describe the invention in the best way. It should not be interpreted, but should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention.
따라서, 본 명세서에 기재된 실시 예의 구성은 본 발명의 가장 바람직한 하나의 실시 예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다.
Therefore, the configuration of the embodiments described herein is only one of the most preferred embodiments of the present invention, and does not represent all of the technical idea of the present invention, and various equivalents that may be substituted for them at the time of the present application and It should be understood that there may be variations.
본 발명은 탄화된 목재 참숯을 350±50 매쉬로 미세하게 분쇄한 후 이를 건조실에서 약 60℃로 4~6시간 동안 건조하여 수분을 제거한다.
The present invention is finely pulverized carbonized charcoal charcoal in 350 ± 50 mesh and then dried in a drying chamber at about 60 ℃ for 4-6 hours to remove moisture.
그리고, 상기와 같이 제조된 참숯 분말 20~30중량부와 옥수수전분 또는 쌀전분 10중량부를 혼합한다.
Then, 20 to 30 parts by weight of the charcoal powder prepared as described above and 10 parts by weight of corn starch or rice starch.
참숯은 주지된 바와 같이, 복사열로 나무를 굽을 때 나무의 세포벽이 타들어가면서 0.01㎛~0.1㎛ 크기의 미세한 구멍들이 생기며, 그 미세한 구명의 면적은 1g에 250㎡~300㎡로, 상기 구멍들이 자신의 공간을 채우려고 강한 흡착력을 발휘하고, 원적외선과 음이온을 발생하여, 탈취, 전자파차단, 정수, 항균 등으로 사용된다. 특히, 탄소와 미네랄이 주성분인 다공체로서 생물체의 산화를 막아주어 부패 미생물의 서식 환경을 정화하고, 환원작용에 의해 주변물질의 신선도를 높여 주는 역할을 한다. 또한, 물을 정수하고, 음이온을 발생시켜 공기를 정화하며, 냄새의 원인이 되는 양전자를 흡수하여 탈취하며, 독성물질을 제거하는 작용을 한다.
As charcoal is well known, when a tree is burned by radiant heat, the cell wall of the wood burns, and micropores having a size of 0.01 μm to 0.1 μm are formed, and the area of the fine life is 250 m 2 to 300 m 2 per 1 g. It has strong adsorption power to fill the space, generates far-infrared rays and anions, and is used for deodorization, electromagnetic wave blocking, water purification, and antibacterial properties. In particular, it is a porous body composed mainly of carbon and minerals, which prevents oxidation of living organisms, purifies the habitat environment of decaying microorganisms, and plays a role of enhancing the freshness of surrounding materials by reducing. In addition, it purifies water, generates anions, purifies the air, absorbs and deodorizes positrons that cause odors, and removes toxic substances.
옥수수전분 또는 쌀전분이 함유된 플라스틱 조성물 성형품은 함유성분들의 응집력을 높이고, 포름알데히드 방출량을 줄이고 유해물질들을 줄일 뿐만 아니라 매립시 토양속에서 분해되어 친환경적인 장점이 있다.
The plastic composition molded product containing corn starch or rice starch increases the cohesion of the components, reduces the amount of formaldehyde and reduces the harmful substances, as well as decomposes in the soil during landfill, which is environmentally friendly.
옥수수전분 또는 쌀전분은 수분이 첨가되면 접착력이 생기는 특성이 있는데, 옥수수전분 또는 쌀전분을 물에 녹이면 엉김 현상이 발생하는 것을 응용해서 식용색소를 첨가해 입에 들어가도 거의 해가 없고, 물에 쉽게 용해되어 물에 녹일 경우 물감 대용으로도 사용이 가능하다.
Corn starch or rice starch has the property of adhesiveness when water is added, but when corn starch or rice starch is dissolved in water, it causes entanglement. When dissolved and dissolved in water, it can be used as a substitute for paint.
이때 사용되는 옥수수전분 또는 쌀전분의 평균입도는 1,800 내지 2,100 메쉬인 것이 바람직하다. 이는 성형품의 제조 과정에서 다른 구성성분과 균일하게 혼합될 수 있고 공극을 유발하는 기포가 발생하지 않으며, 매립 폐기시 분해 속도가 빨라 바람직하다.
At this time, the average particle size of the corn starch or rice starch used is preferably 1,800 to 2,100 mesh. This is preferable because it can be uniformly mixed with other components in the manufacturing process of the molded article, no bubbles causing voids, and the decomposition speed in landfill disposal is fast.
또한, 함량은 10~15중량부인 것이 바람직한데, 10중량부 미만이면 분해 성능이 저하되어 바람직하지 않고, 15중량부를 초과하면 가공성 및 기계적 물성의 측면에서 바람직하지 않다.
In addition, the content is preferably 10 to 15 parts by weight, but less than 10 parts by weight deteriorates the decomposition performance is not preferable, and exceeds 15 parts by weight is not preferable in terms of processability and mechanical properties.
참숯과 옥수수전분 또는 쌀전분이 혼합된 혼합물에 무기질 필러 5~10중량부와 그라프트제 3중량부와 생분해효소 5~10중량부를 교반기에 넣고 약 800℃의 온도에서 3,000 rpm으로 1시간여 동안 교반시킨다.
5-10 parts by weight of inorganic filler, 3 parts by weight of graft agent and 5-10 parts by weight of biodegradable enzyme are added to a mixture of true charcoal and corn starch or rice starch in a stirrer and stirred for 1 hour at 3,000 rpm at a temperature of about 800 ° C. Let's do it.
본 발명에서 사용 가능한 무기질 필러의 예로는 실리카(SiO2), 탈크(Talc), 마이카(Mica), 카오린(점토의 일종: Kaolin) 및 이산화티탄(TiO2) 등을 들 수 있으며, 분해성 플라스틱 조성물에서 5~10중량부의 양으로 사용되는 것이 바람직하다. 이는 무기질 필러의 양을 5중량부 이하로 하면 소각시 유해가스의 양이 과다해지고, 무기질 필러의 양을 10중량부 이상으로 하면 제품의 내구성이 떨어지는 문제가 있기 때문이다.
Examples of inorganic fillers that may be used in the present invention include silica (SiO 2), talc (Talc), mica (Mica), kaolin (kaolin) and titanium dioxide (TiO 2), and the like. It is preferably used in an amount of ˜10 parts by weight. This is because when the amount of the inorganic filler is 5 parts by weight or less, the amount of harmful gas when incinerated becomes excessive, and when the amount of the inorganic filler is 10 parts by weight or more, the durability of the product is inferior.
본 발명에서 사용되는 그라프트제로는 아릴메타크릴레이트, 트리아릴시아누레이트, 트리아릴이소시아누레이트, 글리시딜메타크릴레이트, 에틸렌글리콜 디아크릴레이트, 에틸렌글리콜 디메타크릴레이트, 부틸렌글리콜 디아크릴레이트, 부틸렌글리콜 디메타크릴레이트가 있다. 또한, 생분해 효소로는 리파아제, 셀룰라아제, 에스테라아제 등이 있다.
The graft agent used in the present invention is aryl methacrylate, triaryl cyanurate, triaryl isocyanurate, glycidyl methacrylate, ethylene glycol diacrylate, ethylene glycol dimethacrylate, butylene glycol Diacrylate and butylene glycol dimethacrylate. In addition, biodegradable enzymes include lipase, cellulase, esterase and the like.
교반된 참숯 반죽물에 습윤제, 증점제, 암모니아, 알코올, 목초액의 혼합으로 되는 첨가제 10중량부와 열가소성수지인 폴리프로필렌(PP), 폴리에틸렌(PE), 폴리스틸렌(PS), 폴리염화비닐(PVC), 아크릴수지 군으로부터 선택되어 지는 어느 하나의 열가소성 수지를 130~180중량부 혼합하여 상기와 같은 조건에서 교반한다.
10 parts by weight of an additive consisting of a mixture of a wetting agent, a thickener, ammonia, alcohol and wood vinegar to the stirred charcoal dough, and a thermoplastic resin polypropylene (PP), polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC), 130-180 parts by weight of any one thermoplastic resin selected from the group of acrylic resins are mixed and stirred under the same conditions.
또한, 천연 제올라이트 분말 20중량부와 모데나이트 원석분말 15중량부 및 귀양석 원석 분말 15중량부를 포함한다.
Also, 20 parts by weight of natural zeolite powder, 15 parts by weight of mordenite ore powder and 15 parts by weight of precious stone gemstone powder.
여기서, 천연 제올라이트는 모스굳기가 6을 넘지 않으며, 비중은 약 2.2이고, 결정구조적으로 각 원자의 결합이 느슨하여, 그 사이를 채우고 있는 수분을 고열로 방출시켜도 골격은 그대로 있어 다른 미립물질을 흡착할 수가 있고, 크기가 다른 미립물질을 분리시킬 수 있으며, 음이온 교환성을 가져, 주로 흡착제와 크기가 다른 미립물질을 분리시키는 분자체, 양이온 교환특성을 이용한 경수 연화제로 사용된다.
Here, natural zeolites have a moss firmness of not more than 6, specific gravity of about 2.2, and loosely bonded to each atom in the crystal structure, and the framework remains intact even when releasing moisture filled therebetween at high heat, thereby adsorbing other particulate matter. It can be used to separate particulates of different sizes, has anion exchangeability, and is mainly used as a molecular sieve for separating adsorbents and particulates of different sizes, and is used as a hard water softener using cation exchange properties.
여기서, 모데나이트 원석분말은 사방정계의 결정을 이루며, 4~5의 모스경도를 가지고, 프리즈마틱 결정으로 미세하며 침상이나 미세섬유의 성상을 가져 탈취, 분해, 열감량 소재, 촉매볼 등으로 사용된다.
Here, the mordenite ore powder forms a tetragonal crystal, has a Mohs hardness of 4 to 5, is fine as a prismatic crystal and has the shape of needles or fine fibers to be used as a deodorizing, decomposition, heat-reducing material, catalyst balls, etc. do.
여기서, 귀양석 원석 분말은 보통의 세라믹들이 40℃의 고온에서 90% 이상의 원적외선을 방출하는 반면 25℃, 즉 실온에서 96%의 원적외선을 방출하는 특성과, 토르말린 보다 10배 정도 높은 최대 24,000 ION/cc의 음이온을 발생시키며, 높은 계면활성 효과와 방사능원소를 함유하지 않은 인체에 유익한 천연물질로써 원적외선, 팩, 가루치약, 촉매볼 등으로 사용된다.
Here, the gemstone ore powder is characterized by the fact that ordinary ceramics emit more than 90% of far infrared rays at a high temperature of 40 ° C, while emitting 96% of far infrared rays at 25 ° C, that is, room temperature, up to 24,000 ION / Produces negative ions of cc, and is a natural substance beneficial to the human body that does not contain radioactive elements with high surfactant activity. It is used as far infrared ray, pack, powdered toothpaste, catalyst ball, etc
또한, 알루미나(Al₂O₃) 10중량부를 혼합하여 교반함으로써, 플라스틱 조성물에 의해 성형된 성형품의 내마모성, 전기절연성을 우수하게 유지시켜 주고, 유해 성분을 흡착시켜 주게 된다.
In addition, by mixing and stirring 10 parts by weight of alumina (Al 2 O 3), it is possible to maintain excellent wear resistance and electrical insulation of the molded article molded by the plastic composition, and adsorb harmful components.
또한, 규산칼륨(K₂SiO₃)과 규산나트륨(Na₂SiO₃) 혼합물 5중량부가 더 혼합됨으로써, 본 발명의 플라스틱 조성물에 의해 성형된 성형품은 규산칼륨(K₂SiO₃)과 규산나트륨(Na₂SiO₃) 혼합물에 의해 내충격성이 향상되게 된다.
In addition, by mixing 5 parts by weight of a mixture of potassium silicate (K₂SiO₃) and sodium silicate (Na₂SiO₃), the molded article molded by the plastic composition of the present invention is improved in impact resistance by the mixture of potassium silicate (K₂SiO₃) and sodium silicate (Na₂SiO₃). Will be.
한편, 본 발명의 생분해 플라스틱 조성물은 열가소성 수지 대신 열가소성 폴리우레탄(TPU)를 사용하는 것도 바람직하다.
On the other hand, the biodegradable plastic composition of the present invention preferably uses a thermoplastic polyurethane (TPU) instead of a thermoplastic resin.
열가소성 폴리우레탄(TPU)은 다른 수지보다 저온특성이 우수하고, 유연성이 풍부하며, 내구성, 내마모성이 양호하며, 인장강도, 신장율, 내피로성등의 기계적 성질이 뛰어나며, 내굴곡성, 내한성 및 내유성이 우수하여 광범위한 분야에 사용되고 있다.
Thermoplastic Polyurethane (TPU) has better low temperature characteristics than other resins, is rich in flexibility, has good durability and abrasion resistance, and has excellent mechanical properties such as tensile strength, elongation rate and fatigue resistance, and excellent bending resistance, cold resistance and oil resistance. It is used in a wide range of fields.
특히, 열가소성 폴리우레탄(TPU)은 상온에서 물성의 큰 변화없이 물속에서 사용이 가능하지만, 대략 80℃ 이상의 온수에서는 에스테르기가 가수분해되므로, 폴리에스테르계 폴리우레탄은 물성이 크게 변하게 된다. 그러나 폴리에테르계 폴리우레탄은 온수에서 물성의 변화가 없기 때문에, 다양한 제품의 재료로서 사용될 수 있다.
In particular, thermoplastic polyurethane (TPU) can be used in water without significant change in physical properties at room temperature, but since the ester group is hydrolyzed in hot water of about 80 ° C. or more, the polyester-based polyurethane has a large change in physical properties. However, since the polyether-based polyurethane has no change in physical properties in hot water, it can be used as a material of various products.
따라서, 참숯이 함유된 본 발명의 플라스틱 조성물에 의해 성형된 성형품에 열가소성 폴리우레탄(TPU)이 혼합되어 성형됨으로 인해 탄성이 있으면서도 내마모성이 우수한 특징이 있다.
Therefore, since the thermoplastic polyurethane (TPU) is molded and molded into the molded article formed by the plastic composition of the present invention containing charcoal, it is characterized by excellent elasticity and wear resistance.
상기와 같이 교반 혼합된 혼합물은 압출기를 이용해 용융, 압출시킨 후, 펠레타이저(Pelletizer)로 펠렛 형태의 마스터배치를 제작한다. 마스터배치는 사출시 수지의 흐름 방향으로 가스가 퍼져 나가므로, 성형품을 취출해 보면 보통 수지의 흐름 방향으로 실버 스트리크 현상이 나타나게 된다.
The mixture stirred and mixed as described above is melted and extruded using an extruder, and then produced in a pellet-type masterbatch using a pelletizer. Since the masterbatch spreads gas in the resin flow direction during injection, the silver streak phenomenon usually occurs in the resin flow direction when the molded product is taken out.
따라서, 숯을 함유하고 있는 마스터배치는 수분 및 습기를 함유하고 있으므로, 사출 성형시 수분 및 습도조절을 하여 불량율을 줄이기 위해 건조기에 80℃의 온도에서 약 2~4시간 동안 충분히 수분을 건조시킨다.
Therefore, the master batch containing charcoal contains moisture and moisture, so that moisture and humidity are controlled during injection molding to dry the moisture sufficiently for about 2 to 4 hours at a temperature of 80 ° C. in a dryer to reduce the defect rate.
그리고, 건조된 마스터배치를 약 200 ~ 250℃의 온도로 되는 사출기에 넣어 보합성형한다. 이때, 사출성형압력은 500 ~ 1,500kg/㎢으로 조정하며 금형온도는 50 ~ 70℃에 맞춘다. 이때 200℃ 이하의 온도에서 교반하는 경우에는 물성이 약해져 제품의 성형이 이루어지지 않게 되고, 250℃ 이상인 경우는 분균일하게 성형이 되는 문제점이 있다.
Then, the dried masterbatch is put into an injection molding machine having a temperature of about 200 to 250 ° C., and then subjected to synthetic molding. At this time, the injection molding pressure is adjusted to 500 ~ 1500kg / ㎢ and the mold temperature is set to 50 ~ 70 ℃. At this time, when stirring at a temperature of 200 ° C or less, the physical properties are weakened, the molding of the product is not made, if the temperature is 250 ° C or more, there is a problem of uniform molding.
상기와 같이 생분해성 플라스틱 조성물에 의해 제조된 마스터배치는 펠렛 형태로 형성되어 원하는 성형품을 성형 제작하게 되는데, 압출 성형, 블로우 성형, 발포성형, 사출 성형, 캐스팅법, 방사법 등과 같은 통상적인 성형법으로 제조할 수 있다. 이때, 성형품의 강도조절을 위하여 안정제를 혼합하면 요구하는 강도를 가지는 성형품의 제공이 가능하다.
The masterbatch manufactured by the biodegradable plastic composition as described above is formed into pellets to form a desired molded article, which is manufactured by conventional molding methods such as extrusion molding, blow molding, foam molding, injection molding, casting, spinning, and the like. can do. At this time, if a stabilizer is mixed to control the strength of the molded article, it is possible to provide a molded article having the required strength.
성형품으로는 예를 들면 자동차 부품, 생활용품, 주방용품(도마, 칼집, 용기 등), 건축자재, 난방용자재, 가구자재대용, 필름, 시이트, 용기, 묘목용 포트, 네트, 백 등으로 제조되어 활용 가능하다.
Molded products include, for example, automobile parts, household goods, kitchen utensils (cutting boards, sheaths, containers, etc.), construction materials, heating materials, furniture materials, films, sheets, containers, seedling ports, nets, bags, etc. It can be utilized.
특히, 본 발명의 플라스틱 조성물에 의해 성형된 성형품은 습기제거율이 뛰어나고 항균성이 높이 다양한 용도로 사용이 가능하다.
In particular, the molded article molded by the plastic composition of the present invention is excellent in moisture removal rate and can be used for various purposes with high antibacterial properties.
또한, 본 발명의 생분해 플라스틱 조성물에 의해 성형된 플라스틱 성형품은 보통 플라스틱처럼 간편하게 사용을 하고서 버려지게 되어도, 토양 중의 미생물에 의해 생분해되어 자연으로 빠른 시간에 순환되어 자연과 융합되어 환경오염을 일으키지 않는 환경 친화적인 생분해성 플라스틱인 것이다.
In addition, even if the plastic molded article molded by the biodegradable plastic composition of the present invention is discarded after being used simply as a plastic, it is biodegraded by microorganisms in soil and circulated in nature quickly and fused with nature so as not to cause environmental pollution. It is a friendly biodegradable plastic.
Claims (5)
20-30 parts by weight of charcoal powder, 10-15 parts by weight of corn starch or rice starch, 5-10 parts by weight of inorganic filler, 3 parts by weight of graft agent, 5-10 parts by weight of biodegradable enzyme, 15-20 parts by weight of sealant Selected from the group consisting of 10 parts by weight of a wetting agent, a thickener, ammonia, alcohol and wood vinegar, polypropylene (PP), polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC) and acrylic resin Biodegradable plastic composition containing a charcoal, characterized in that consisting of one thermoplastic resin 30 to 40 parts by weight.
20-30 parts by weight of charcoal powder, 10-15 parts by weight of corn starch or rice starch, 5-10 parts by weight of inorganic filler, 3 parts by weight of graft agent, 5-10 parts by weight of biodegradable enzyme, 15-20 parts by weight of sealant A biodegradable plastic composition containing charcoal, comprising 10 parts by weight of an additive comprising a humectant, a thickener, ammonia, alcohol, wood vinegar, and 30-40 parts by weight of a thermoplastic polyurethane (TPU).
상기 생분해 플라스틱 조성물에 천연 제올라이트 분말 20중량부와 모데나이트 원석분말 15중량부 및 귀양석 원석 분말 15중량부가 더 포함되는 것을 특징으로 하는 숯을 함유하는 생분해 플라스틱 조성물.
3. The method according to claim 1 or 2,
The biodegradable plastic composition containing charcoal, characterized in that the biodegradable plastic composition further comprises 20 parts by weight of natural zeolite powder, 15 parts by weight of mordenite gemstone powder and 15 parts by weight of gemstone gemstone powder.
상기 생분해 플라스틱 조성물에 알루미나(Al₂O₃) 10중량부가 더 포함되는 것을 특징으로 하는 숯을 함유하는 생분해 플라스틱 조성물.
The method of claim 3, wherein
The biodegradable plastic composition containing charcoal, characterized in that the biodegradable plastic composition further comprises 10 parts by weight of alumina (Al₂O₃).
상기 생분해 플라스틱 조성물에 규산칼륨(K₂SiO₃)과 규산나트륨(Na₂SiO₃) 혼합물 5중량부가 더 포함되는 것을 특징으로 하는 숯을 함유하는 생분해 플라스틱 조성물.
5. The method of claim 4,
The biodegradable plastic composition containing charcoal, characterized in that the biodegradable plastic composition further comprises 5 parts by weight of a mixture of potassium silicate (K₂SiO₃) and sodium silicate (Na₂SiO₃).
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