KR20000072326A - Plastic composition obtained from mixed waste plastic and waste fiber and its moldings - Google Patents

Plastic composition obtained from mixed waste plastic and waste fiber and its moldings Download PDF

Info

Publication number
KR20000072326A
KR20000072326A KR1020000050554A KR20000050554A KR20000072326A KR 20000072326 A KR20000072326 A KR 20000072326A KR 1020000050554 A KR1020000050554 A KR 1020000050554A KR 20000050554 A KR20000050554 A KR 20000050554A KR 20000072326 A KR20000072326 A KR 20000072326A
Authority
KR
South Korea
Prior art keywords
waste
plastic
mixed
peroxide
plastics
Prior art date
Application number
KR1020000050554A
Other languages
Korean (ko)
Inventor
홍영근
Original Assignee
홍영근
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 홍영근 filed Critical 홍영근
Priority to KR1020000050554A priority Critical patent/KR20000072326A/en
Publication of KR20000072326A publication Critical patent/KR20000072326A/en

Links

Classifications

    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/20—Recycled plastic
    • 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

Abstract

PURPOSE: A plastic composition having excellent physical properties by mixing rosin and a peroxide compound with waste plastics and waste celluloses without separating and heating at below 200°C and molding products thereof are provided which can be used for artificial woods, fences, pallets, concrete form or the like. CONSTITUTION: The plastic composition is prepared by mixing waste plastic, 10 to 70% by weight of waste cellulose based on the total weight of waste plastic and waste cellulose, 10 to 40% by weight of rosin, 0.1 to 2% by weight of a peroxide compound selected from aliphatic peroxide and aromatic peroxide and melting at 160 to 200°C. And the composition is extruded at a twin screw at 160 to 180°C at a pressure of 200 to 300 kg/cm¬2 to produce the molded product.

Description

혼합폐플라스틱과 폐섬유소로부터 얻어진 플라스틱 조성물 및 그 성형물{.}Plastic composition obtained from mixed waste plastic and waste fiber and its moldings {.}

본 발명은 혼합폐플라스틱에 폐섬유소를 섞어 얻어진 플라스틱 조성물을 통한 폐플라스틱의 재활용에 관한 것으로, 보다 상세하게는 쓰레기로 버려지는, 각종 플라스틱이 섞여진 혼합폐플라스틱과 폐섬유소를 잘게 분쇄한 후 이를 송진 및 과산화 화합물과 함께 용해시키고, 이를 사출 또는 압출하여 관상, 판상 등의 형상으로 성형가공하여 얻어지는 플라스틱 조성물 및 그 성형물에 관한 것이다.The present invention relates to the recycling of waste plastics through a plastic composition obtained by mixing waste fibers in mixed waste plastics, and more particularly, finely pulverizing mixed waste plastics and waste fibers mixed with various plastics which are discarded as waste. The present invention relates to a plastic composition obtained by dissolving together with a rosin and a peroxide compound, and molding or processing the same by injection or extrusion to form a tubular or plate shape.

폐기물로서 폐플라스틱은 최근 세계적인 환경오염물질로서 대두되고 있다. 폐플라스틱의 일반적인 처리방법으로는 우선 매립이나 소각처리 등이 있다. 그러나 생분해성 플라스틱을 제외하고는 대부분의 플라스틱이 분해가 되지 않으며 무게에 비해 부피가 커서 매립지의 추가 건설이 어려운 상황에서 매립에 의한 폐플라스틱 처리는 많은 문제점을 가져오게 된다. 한편, 소각처리의 경우에는 다이옥신 같은 유독가스가 발생하고 에너지 손실이 크므로 효율적인 대안이 되기 위해서는 많은 설비투자가 필요하게 된다. 따라서, 폐플라스틱을 적절히 회수하여 재활용(recycling)하는 방안이 환경보호 및 유용자원의 재회수 관점에서 최선책으로 대두되고 있다.Waste plastics as a waste have recently emerged as a global environmental pollutant. General methods of waste plastics include landfilling and incineration. However, except for biodegradable plastics, most plastics are not decomposed and bulky due to their weight, which makes it difficult to further construct landfills. On the other hand, in the incineration treatment, toxic gases such as dioxins are generated and energy loss is large, so a lot of facility investment is required to be an efficient alternative. Therefore, a method of appropriately recovering and recycling waste plastics has emerged as the best solution from the viewpoint of environmental protection and recycling of useful resources.

폐플라스틱의 재활용에 관한 연구는 전세계적으로 활발히 진행되고 있으나 현재까지는 몇몇 플라스틱의 분해기작에 관해서만 발표되었을 뿐 구체적으로 폐플라스틱을 회수하여 경제적으로 재사용할 수 있는 방안을 제시한 예는 별로 없다. 단지, 공업적으로 미국과 유럽등지에서 주로 HDPE, LDPE, PP 등의 열가소성 플라스틱의 단일 조성을 이용하고 있을 뿐이다.Although the research on the recycling of waste plastics is being actively carried out all over the world, until now, only the decomposition mechanisms of some plastics have been published, and there are few examples of how to recover waste plastics and economically reuse them. However, industrially, only the single composition of thermoplastics such as HDPE, LDPE, and PP is mainly used in the US and Europe.

일본국 공개 특허공보 소52-23179에는 폐플라스틱을 재생하여 활용하는 방법이 제시되고 있다. 이에 따르면 PVC, PE 등의 폐플라스틱을 분쇄하고 이를 상용화제(compatibilizer)와 함께 가열, 용해한 후 펠레트(pellet)화 하고, 이 펠레트의 용해온도와 동일조건에서 PP, PE 등의 순수플라스틱(virgin plastic)을 단계적으로 상기 펠레트와 혼합, 용해한 후 사출 또는 압출성형하여 관상, 판상등의 형상으로 제조하고 있다. 상용화제를 쓰는 이유는 물성이 각기 다른 플라스틱을 혼합, 용해할 때 각 플라스틱의 계면간의 상호작용을 크게 하여 균일한 성질을 갖게 하는 것이다. 균일성이 없으면, 즉 불균일하면 하중은 계면에 집중되고, 그 곳에서 파열이 일어나거나 물성이 저하된다.Japanese Laid-Open Patent Publication No. 52-23179 discloses a method for recycling waste plastics. According to this, pulverized waste plastics such as PVC and PE are heated and dissolved with a compatibilizer, and then pelletized, and pure plastics such as PP and PE are subjected to the same conditions as the melting temperature of the pellets. virgin plastic) is gradually mixed with the pellets, dissolved, and then injected or extruded into a tubular or plate shape. The reason for using the compatibilizer is to increase the interaction between the interfaces of each plastic when the physical properties of different plastics are mixed and dissolved to have a uniform property. If there is no uniformity, i.e., if it is nonuniform, the load is concentrated at the interface, where rupture occurs or physical properties deteriorate.

그러나, 문제는 쓰레기로 버려지는 각종 플라스틱은 혼합된 상태로 존재한다는 것이다. 혼합된 폐플라스틱은 물성면에서 각기 다른 특성을 갖고 있고 적어도 10여종의 각종 플라스틱들이 혼합되어 있기 때문에 위의 경우에서처럼 성분을 알고 있는 소수의 폐플라스틱을 의도적으로 선택하여 이들을 상용화제와 함께 단계적으로 혼합, 용해할 수 없다. 왜냐하면 혼합된 폐플라스틱에서 몇몇 플라스틱을 선별, 선택하기도 힘들거니와 상용화제는 3가지 내지 4가지 정도의 플라스틱 혼합물에서만 사용이 가능하기 때문이다.However, the problem is that the various plastics that are thrown into the trash are present in a mixed state. Since the mixed waste plastics have different properties in terms of physical properties and at least 10 kinds of plastics are mixed, intentionally selecting a small number of waste plastics with known ingredients as in the above case and mixing them stepwise with a compatibilizer , Cannot be dissolved. It is difficult to select and select some plastics from mixed waste plastics, and compatibilizers can only be used in three or four plastic mixtures.

정부는 앞으로 재활용에 따른 비용을 낮추기 위하여 폐플라스틱을 선별하지 않고 혼합폐플라스틱 그 자체를 활용하고자 하는 방침을 세워두고 있다. 그러나 아직 그러한 기술은 나타나 있지 않다.In order to reduce the cost of recycling, the government has a policy to utilize the mixed waste plastic itself instead of sorting the waste plastic. But such a technique has not yet emerged.

한편, 폐기물로서 폐레이욘, 폐지, 폐면, 톱밥 등의 폐섬유소(waste cellulose) 또한 전세계적인 환경오염물질로 대두되고 있다. 자원의 재활용 측면에서 이들의 활용에 대한 연구가 꾸준히 수행되어 왔지만 아직 적절한 용도가 많지 않은 실정이다.Meanwhile, waste cellulose such as waste rayon, waste paper, waste cotton, sawdust, etc. is also emerging as a global environmental pollutant. In terms of recycling of resources, research on their use has been conducted steadily, but there are not many suitable uses.

따라서, 혼합폐플라스틱과 폐섬유소를 함께 재활용할 수 있는 기술의 필요성이 부각되고 있다.Therefore, there is a need for a technology that can recycle mixed waste plastic and waste fiber together.

본 발명자는 혼합된 폐플라스틱을 분류하지 않고 그대로 사용하고 거기에 폐섬유소를 혼입하여 하나의 물질로 만들기 위한 연구를 거듭한 결과, 송진과 과산화화합물을 첨가함으로써 우수한 물성을 갖는 물질을 얻을 수 있음을 알게 되어 본 발명을 완성하게 되었다.The inventors of the present invention did not classify the waste plastics as they are, and used the waste fibers to mix them into one material. As a result, it is possible to obtain a substance having excellent physical properties by adding rosin and peroxide compounds. The present invention has been completed.

따라서, 본 발명은 쓰레기로 버려지는 수십종의 각종 플라스틱의 섞여있는 혼합폐플라스틱과 폐섬유소를 쉽고 간편하게, 그리고 저렴하게 재활용할 수 있는 방법을 제공하는 데에 그 목적이 있다.Accordingly, an object of the present invention is to provide a method for easily and simply and inexpensively recycling mixed mixed waste plastics and waste fibers of dozens of various plastic wastes.

본 발명은 혼합된 폐플라스틱을 세정하고 분쇄하여 혼합폐플라스틱 분쇄물을 얻고, 다시 폐섬유소를 분쇄하여 폐섬유소 분쇄물을 얻은 다음, 혼합폐플라스틱 분쇄물과 폐섬유소 분쇄물을 섞고 여기에 송진과 과산화물을 첨가하고 이 혼합물을 160 내지 200℃에서 용해시키고 이를 사출 또는 압출하여 원하는 모양으로 성형가공시키는 것으로 구성된다. 이때, 용융점이 가장 낮은 수지(PE, PP 등)는 핫 멜트(hot melt)접착제 구실을 하며 용융점이 높은 수지(PET, 나일론 등)는 강화 충전제(reinforced filler)로 작용한다.The present invention is to wash and pulverize the mixed waste plastic to obtain a mixed waste plastic pulverized, and to further pulverized waste fiber to obtain a waste fiber pulverized, and then mixed mixed waste plastic pulverized and waste fiber pulverized and the rosin and Peroxide is added and the mixture is dissolved at 160-200 ° C. and injected or extruded to form into the desired shape. At this time, the resin having the lowest melting point (PE, PP, etc.) serves as a hot melt adhesive, and the resin having a high melting point (PET, nylon, etc.) serves as a reinforced filler.

과산화화합물은 지방족 과산화물과 방향족 과산화물이 포함되며 이들을 가열하면 라디칼이 형성되어 주로 폴리올레핀계(PE, PP, PS 등) 플라스틱간의 계면에 가교결합을 형성시켜 여러 플라스틱 성분을 하나(一)가 되게, 즉 균일하게 할 뿐만 아니라 서로 다른 용융점도를 가진 각 플라스틱들의 용융점도를 어느 정도까지는 비슷하게 유지시켜 성형가공성을 높여준다.Peroxide compounds include aliphatic peroxides and aromatic peroxides, and when heated, radicals are formed to form crosslinks at the interface between polyolefin-based plastics (PE, PP, PS, etc.) to form various plastic components (1). Not only to make uniform, but also to maintain the melt viscosity of each plastic having a different melt viscosity to a certain degree, thereby improving molding processability.

송진은 목재에서 추출된 물질로서 복잡한 고리(ring)구조로 되어 있으며 고리끝에 메틸(CH3)기와 카르복실(COOH)기를 가지고 있다. 메틸기는 과산화물의 라디칼과 반응하여 메틸라디칼을 형성, 플라스틱과 결합하고 카르복실기는 섬유소의 수산(OH)기와 수소결합하게 됨으로써 플라스틱과 폐섬유소를 하나가 되게 한다.Rosin is a material extracted from wood and has a complex ring structure and has methyl (CH 3 ) and carboxyl (COOH) groups at the end of the ring. Methyl groups react with radicals of peroxides to form methyl radicals, which combine with plastics, and carboxyl groups become hydrogen-bonded with the hydroxyl (OH) groups of cellulose, thereby bringing plastic and waste fibers together.

공정을 설명하면, 혼합폐플라스틱 분쇄물(A)에 폐섬유소 분쇄물(B)를 A+B 무게의 10∼80% 섞은 다음 여기에 송진을 A+B 무게의 10∼40 중량% 첨가하고 다시 과산화물을 A+B 무게의 0.1∼2 중량% 첨가하여 잘 섞은 후 이를 호퍼(압출기 주입구)에 넣는다. 폐섬유소는 성형물의 강도가 유지되는 한 많이 넣는 것이 유리하다. 왜냐하면 깨끗이 선별된 폐플라스틱은 톤당 20만원 가량이나 폐섬유소(폐신문지)는 5만원 가량이다. 따라서, 강도를 유지할 수 있는 한도내에서 폐섬유소를 많이 쓰면 생산비용도 적게 들고 또한 톱질, 못질, 대패질이 가능한 성형품을 얻을 수 있는 것이다.In describing the process, the waste fiber pulverized product (A) is mixed with 10 to 80% of the A + B weight by mixing the waste fiber pulverized product (B) with 10 to 40% by weight of the rosin added to the A + B weight. Add 0.1 to 2% by weight of A + B peroxide, mix well, and place it in the hopper (extruder inlet). It is advantageous to add as much waste fiber as long as the strength of the molding is maintained. Because waste plastics are cleanly selected, about 200,000 won per ton, and waste fiber (waste newspaper) is about 50,000 won. Therefore, if the waste fiber is used a lot within the limit that can maintain the strength, it is possible to obtain a molded article that is less costly and can be sawed, nailed, planer.

호퍼에 넣어진 혼합물(혼합폐플라스틱+폐섬유소+송진+과산화물)은 가열된 압출기 내부를 통하여 교반되고 압출된다. 압출기 내부의 온도는 200℃ 이하로 함이 바람직하다. 왜냐하면 폐섬유소의 구성요소인 셀룰로오스는 200℃ 이상에서 오래 있으면 분해되기 쉽기 때문이다.The mixture placed in the hopper (mixed waste plastic + waste fiber + rosin + peroxide) is stirred and extruded through a heated extruder. It is preferable that the temperature inside an extruder shall be 200 degrees C or less. This is because cellulose, which is a component of waste fiber, is easily decomposed if it is longer than 200 ° C.

압출기의 압출과정은, 폐플라스틱이 폐섬유소 분말에 고루 흡수되게 혼합물을 160 내지 200℃로 가열하고 혼합물이 고루 혼합되게 이축스크류(twin screw)로써 200 내지 300kg/cm2의 압력으로 혼합이송하는 1차 혼합과정, 1차 혼합과정에서 발생한 가스로 인한 압출물의 결합강도의 저하 또는 미세금(hair crack)의 생성방지를 위하여 740 내지 760mbar의 진공압력으로 혼합물중의 가스를 강제 배출시키는 가스배출과정, 가스배출과정을 통하여 가스가 배출된 용융상의 혼합물이 외부로 배출되지 않고 연속하여 이송되도록 혼합물의 온도를 160 내지 180℃로 유지하여 점성력을 높이며 이축스크류 펌프에 의하여 200 내지 300 mbar의 진공압력으로 혼합 이동하는 2차 혼합과정, 2차 혼합과정을 통하여 혼합된 용융상의 혼합물이 미끄러짐(slip)으로 인한 압출불량이 발생하지 않게 기어펌프를 이용하여 강제 이송하는 펌핑과정, 펌핑과정을 통하여 강제 이송된 혼합 용융물이 압출다이를 통과시 이완현상(relaxation)에 따른 급속팽창에 의한 압출 불량을 방지하고 이송률이 균형을 이루도록 55 내지 80℃로 냉각시켜 일정 형상으로 압출시켜 압출물을 성형시키는 냉각압출과정, 압출물의 압출이 용이하도록 잡아당기는 인취과정, 그리고 인취된 압출물을 일정한 길이로 절단하는 절단과정으로 이루어 진다. 이러한 과정을 통하여 제조된 성형물은 기계적인 혼합과 약품에 따른 상용성(compatibilization)에 의해 표면이 균일하고 높은 강도를 갖는다.The extrusion process of the extruder is to heat the mixture to 160-200 ° C. so that the waste plastic is absorbed evenly by the waste fiber powder and mix transfer at a pressure of 200-300 kg / cm 2 with a twin screw so that the mixture is evenly mixed. A gas discharge process forcibly discharging the gas in the mixture at a vacuum pressure of 740 to 760 mbar in order to reduce the bond strength of the extrudate due to the gas generated during the first mixing process, the first mixing process or to prevent the formation of hair cracks, Maintaining the temperature of the mixture at 160 to 180 ° C to increase the viscosity and mixing at a vacuum pressure of 200 to 300 mbar by a biaxial screw pump so that the molten phase gas discharged through the gas discharge process is continuously transported without being discharged to the outside. The melted mixture mixed through the moving secondary mixing process and the secondary mixing process does not cause extrusion failure due to slip. Pumping process forcibly conveying by using gear pump, and mixed melt conveyed through pumping process prevents extrusion failure by rapid expansion due to relaxation when passing through extrusion die and balances feed rate. It is made of a cooling extrusion process to form an extrudate by cooling to 80 ℃ to form a extruding, pulling out to facilitate the extrusion of the extrudate, and a cutting process of cutting the taken extrudate to a certain length. The moldings produced through this process have a uniform surface and high strength due to mechanical mixing and compatibility with chemicals.

이하 실시예를 들어 그 제조방법을 자세히 설명한다. 그러나 본 예가 본 발명의 범위를 한정하는 것은 아니다.Hereinafter, the production method will be described in detail with reference to Examples. However, this example does not limit the scope of the present invention.

실 시 예Example

< 플라스틱 준비 ><Plastic preparation>

동네 쓰레기에서 플라스틱만을 수거하여 이들을 말끔히 씻고 건조한 뒤 파쇄기에 넣고 파쇄하여 긴쪽의 길이가 0.5 내지 1cm 정도 되는 박편을 얻었다. 이를 다시 분쇄기에 넣고 분쇄하여 긴쪽의 길이가 0.5 내지 2mm 되는 분말을 준비한다.Only plastics were collected from the local garbage, washed, dried, put in a crusher, and crushed to obtain flakes having a length of about 0.5 to 1 cm. This is put into a grinder again and pulverized to prepare a powder having a length of 0.5 to 2 mm.

< 혼합폐플라스틱의 조성분 ><Composition of Mixed Waste Plastic>

위에서 얻어진 혼합폐플라스틱 분쇄품을 비중기, 열분석기, 분광광도기 등을 이용하여 그 조성을 조사해 본 결과 아래와 같은 조성을 나타내었다.The mixed waste plastic pulverized product obtained above was investigated using a specific gravity instrument, a thermal analyzer, a spectrophotometer, and the like.

< 섬유소 준비 ><Preparation of fiber>

폐지(폐신문지)를 분쇄기를 사용하여 긴쪽의 길이가 0.5내지 2mm 되는 분말을 준비한다.The waste paper (waste newspaper) is prepared using a grinder to prepare a powder having a length of 0.5 to 2 mm.

< 압출 공정 ><Extrusion Process>

준비된 혼합폐플라스틱 분말과 폐섬유소 분말을 혼합기에 넣고 여기에 송진과 과산화물(디큐밀퍼록사이드)를 첨가하여 잘 섞은 후 이 혼합물을 압출기 호퍼에 넣는다. 압출기는 3단가열구조로서 1단은 180℃, 2단은 200℃, 3단은 160℃로 조정하고 약 200kg/cm2의 압력으로 압출하여 판상의 성형물을 뽑아낸다.Put the mixed waste plastic powder and waste fiber powder into the mixer, add rosin and peroxide (dicumyl peroxide), mix well, and put the mixture into the extruder hopper. The extruder is a three-stage heating structure, and the first stage is adjusted to 180 ° C, the second stage to 200 ° C, and the third stage to 160 ° C and extruded at a pressure of about 200kg / cm 2 to extract the plate-shaped molding.

< 성형물의 물성 ><Physical Properties of Molding>

위에서 얻어진 판상의 성형물의 옆구리를 칼로 조금씩 잘라내어 이를 minimold(시험편 제조기)에 넣어 인장강도 측정용 시편을 제조하였다. 인장강도는 영국 Lloyd 사의 만능시험기(UTM)를 이용하여 인장속도 10mm/min으로 플라스틱/섬유소 조성비 및 약품처리에 따른 강도(인장강도)변화를 측정하였다. 그 결과를 다음 표에 나타낸다(플라스틱/섬유소 비율이 20/80인 경우에는 흐름성이 부족하여 시료채취가 불가능하였다). 표 2 내지 표 8은 혼합폐플라스틱과 폐섬유소의 혼합비에 따른 실험 물성측정결과를 도시한 것이다.The flanks of the plate-shaped moldings obtained above were cut out little by little with a knife and placed in a minimold (test piece making machine) to prepare specimens for measuring tensile strength. Tensile strength was measured using a universal testing machine (UTM) of Lloyd, UK, at a tensile rate of 10 mm / min to measure the change in strength (tensile strength) according to plastic / fiber composition ratio and chemical treatment. The results are shown in the following table. Tables 2 to 8 show the experimental property measurement results according to the mixing ratio of the mixed waste plastic and waste fiber.

실험결과, 전반적으로 약품(송진, 과산화물)을 사용하지 않은 경우에서 보다, 약품을 첨가한 시료가 더 우수한 강도를 나타내었으며 특히 송진이 20%, 과산화물이 1% 첨가되어있는 경우에 가장 우수한 강도를 나타내었다.As a result, overall, the sample added with the chemical showed better strength than the case without the use of the chemicals (such as rosin and peroxide), especially when 20% rosin and 1% peroxide were added. Indicated.

상술한 바와 같이, 본 발명은 근간에 증가하고 있는 혼합폐플라스틱과 폐섬유소를 재활용하여 플라스틱 조성물 및 그 성형물을 제조하는 것이다. 따라서 폐기물인 폐플라스틱과 폐섬유소를 고부가가치화 할 수 있으며 그 용도로는 인조목재, 울타리, 파렛트, 거푸집 등 여러 건축토목 자재로 이용될 수 있다.As described above, the present invention is to recycle the mixed waste plastic and waste fiber that is increasing in recent years to produce a plastic composition and its moldings. Therefore, waste plastic and waste fiber can be added to high value, and it can be used for various construction civil engineering materials such as artificial wood, fence, pallet, formwork and so on.

본 발명은 본 출원인의 기존 특허 제181373호의 페플라스틱으로서 PE, PP 또는 PE/PP와 폐섬유소(폐레이욘, 폐면, 폐지, 톱밥 등)를 이용하여 인조목재를 제조하는 방법과 , 본 출원인의 다른 선행특허출원기술인 제98-27379호의 각종 폐플라스틱이 혼재해 있는 혼합폐플라스틱에 실란화합물 및 과산화화합물을 첨가하여 인조목재를 제조하는 방법의 장점들을 살리고 , 실란화합물의 전처리에 따르는 수고를 없애기 위하여 , 실란화합물을 빼고 혼합폐플라스틱에 폐섬유를 섞고 거기에 송진과 과산화화합물을 첨가하여 공정을 더욱 간편하게 하고 물성도 더욱 좋아지게 되는 효과가 있었다.The present invention is a method of manufacturing artificial wood using PE, PP or PE / PP and waste fiber (waste rayon, waste cotton, waste paper, sawdust, etc.) as the plastic of the applicant's existing patent No. 181373, and In order to take advantage of the method of manufacturing artificial wood by adding a silane compound and a peroxide compound to a mixed waste plastic containing various waste plastics of No. 98-27379, which is another prior patent application technology, and to eliminate the trouble of pretreatment of the silane compound. By removing the silane compound, the waste fiber was mixed with the mixed waste plastic, and rosin and peroxide compound were added to the process to make the process simpler and improve the physical properties.

Claims (4)

혼합폐플라스틱에 폐섬유소(혼합폐플라스티과 폐섬유소를 더한 무게의 10 내지 70 중량%), 송진(10 내지 40 중량%) 및 과산화화합물(0.1 내지 2 중량%)을 함께 섞어 160 내지 200℃ 온도에서 용융시켜 얻어지는 것을 특징으로 하는 플라스틱 조성물.160 to 200 ° C temperature by mixing waste fiber (10 to 70% by weight of mixed waste plastic and waste fiber), rosin (10 to 40% by weight) and peroxide compound (0.1 to 2% by weight) It is obtained by melting in a plastic composition, characterized in that. 제 1항에 있어서, 과산화화합물로는 지방족과산화물, 방향족 과산화물 또는 그 조합군에서 선택되는 것을 특징으로 하는 플라스틱 조성물.The plastic composition according to claim 1, wherein the compound is selected from aliphatic peroxides, aromatic peroxides, or combinations thereof. 제 1항 또는 제 2항에 있어서, 과산화화합물로는 디큐밀퍼록사이드 및 부틸퍼록사이드 화합물이 선택되는 것을 특징으로 하는 플라스틱 조성물.The plastic composition according to claim 1 or 2, wherein dicumyl peroxide and butyl peroxide compounds are selected as the peroxide compound. 제 1항 내지 제 3항 중의 어느 하나의 플라스틱 조성물을 사출 또는 압출하여 제조되는 플라스틱 성형물.Plastic molding produced by injecting or extruding the plastic composition of any one of claims 1 to 3.
KR1020000050554A 2000-08-29 2000-08-29 Plastic composition obtained from mixed waste plastic and waste fiber and its moldings KR20000072326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020000050554A KR20000072326A (en) 2000-08-29 2000-08-29 Plastic composition obtained from mixed waste plastic and waste fiber and its moldings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020000050554A KR20000072326A (en) 2000-08-29 2000-08-29 Plastic composition obtained from mixed waste plastic and waste fiber and its moldings

Publications (1)

Publication Number Publication Date
KR20000072326A true KR20000072326A (en) 2000-12-05

Family

ID=19685968

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000050554A KR20000072326A (en) 2000-08-29 2000-08-29 Plastic composition obtained from mixed waste plastic and waste fiber and its moldings

Country Status (1)

Country Link
KR (1) KR20000072326A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020035498A (en) * 2002-02-05 2002-05-11 홍영근 Environment-friendly waste plastic recycled fuel and its manufacturing method
KR100908671B1 (en) * 2009-01-05 2009-07-22 대한민국 Manufacturing method of wood-plastic composites using recycled fiberboard

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548236A (en) * 1978-08-07 1980-04-05 D J- K Internatl Kk Hot-melt polymer composition
JPH03109444A (en) * 1989-09-25 1991-05-09 Hitachi Chem Co Ltd Production of crosslinked polyolefin resin foam
KR19980071969A (en) * 1998-07-08 1998-10-26 홍영근 Plastic compositions obtained from waste plastics and their moldings
KR0181373B1 (en) * 1996-03-23 1999-05-15 홍영근 The manufacturing method of biodecomposing plastics and artificial woods
KR19990042536A (en) * 1997-11-27 1999-06-15 권문구 Polypropylene Mixed Resin Compositions for Plastic Covering Materials
KR19990049341A (en) * 1997-12-12 1999-07-05 정몽규 Manufacturing method of recycled resin using peroxide
KR20000057885A (en) * 1999-02-10 2000-09-25 모리 테 쯔로오 Biodegradable material composition, biodegradable container prepared by said composition and the manufacturing method of said container

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548236A (en) * 1978-08-07 1980-04-05 D J- K Internatl Kk Hot-melt polymer composition
JPH03109444A (en) * 1989-09-25 1991-05-09 Hitachi Chem Co Ltd Production of crosslinked polyolefin resin foam
KR0181373B1 (en) * 1996-03-23 1999-05-15 홍영근 The manufacturing method of biodecomposing plastics and artificial woods
KR19990042536A (en) * 1997-11-27 1999-06-15 권문구 Polypropylene Mixed Resin Compositions for Plastic Covering Materials
KR19990049341A (en) * 1997-12-12 1999-07-05 정몽규 Manufacturing method of recycled resin using peroxide
KR19980071969A (en) * 1998-07-08 1998-10-26 홍영근 Plastic compositions obtained from waste plastics and their moldings
KR20000057885A (en) * 1999-02-10 2000-09-25 모리 테 쯔로오 Biodegradable material composition, biodegradable container prepared by said composition and the manufacturing method of said container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020035498A (en) * 2002-02-05 2002-05-11 홍영근 Environment-friendly waste plastic recycled fuel and its manufacturing method
KR100908671B1 (en) * 2009-01-05 2009-07-22 대한민국 Manufacturing method of wood-plastic composites using recycled fiberboard

Similar Documents

Publication Publication Date Title
US5895790A (en) Thermosetting wide range polymer blends
CN101139453B (en) Circulating mix-smelting plastic-wood composite material, production method and freight pallet manufactured by the same
KR101849454B1 (en) Product, method and apparatus for recycling multi waste synthetic resins
KR101529366B1 (en) Solid fuel
BRPI1005144B1 (en) composite material, municipal waste processing method, article manufacture method and municipal waste compaction method
Tesfaw et al. Evaluation of tensile and flexural strength properties of virgin and recycled high-density polyethylene (HDPE) for pipe fitting application
CN110054838B (en) Cellulose hybrid filler reinforced polymer composite material and preparation method thereof
KR20070120822A (en) Recycling disposal system for waste plastic and recycling disposal method for the same
CN101962469A (en) Method for preparing full-degradable lactic acid composite material from secondary fibers of waste newspaper
KR20000072326A (en) Plastic composition obtained from mixed waste plastic and waste fiber and its moldings
KR102216447B1 (en) Manufacturing method for recycled plastic materials
KR100521426B1 (en) Producing method of reinforcing plastic fiber for plastic concrete using plastic wastes, textures and crosslink agent
KR100877970B1 (en) Flame-retardant composition comprising waste frp and fly ash, and method for forming thereof
KR0139884B1 (en) Waste-crosslink-polyethylene resin composition
KR19980071969A (en) Plastic compositions obtained from waste plastics and their moldings
UGWU et al. A mini-review on expanded polystyrene waste recycling and its applications
WO2022113068A1 (en) Composite material and methods of obtaining the same
US10774193B2 (en) Method of continuously recycling thermoset plastic waste
WO2009072150A1 (en) Process and plant for the production of composite thermoplastics and materials thus obtained
Omoniyi et al. Development of processing equipment for Souvenir production from wood and plastics wastes
KR20230055435A (en) A method of recycling waste plastics using subcritical hydrothermal treatment
US20230066052A1 (en) Compositions and Methods for the Recycling of a Mixed Plastic Feedstock
KR20080055866A (en) A process to convert thermoset plastic into recyclable and reusable plastic
JP2007045854A (en) Resin composition for molding
Ramadhoni et al. Wood plastic composites from chopped and pelleted waste plastic bags: effect of concentrations and reprocessing on flexural modulus and strength

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application