KR960011322B1 - Method for concrete composite materials using waste plastic - Google Patents

Method for concrete composite materials using waste plastic Download PDF

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Publication number
KR960011322B1
KR960011322B1 KR1019930017592A KR930017592A KR960011322B1 KR 960011322 B1 KR960011322 B1 KR 960011322B1 KR 1019930017592 A KR1019930017592 A KR 1019930017592A KR 930017592 A KR930017592 A KR 930017592A KR 960011322 B1 KR960011322 B1 KR 960011322B1
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South Korea
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aggregate
synthetic resin
waste
concrete composite
concrete
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KR1019930017592A
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Korean (ko)
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KR950008413A (en
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김재완
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김재완
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1018—Coating or impregnating with organic materials
    • C04B20/1029—Macromolecular compounds
    • C04B20/1033—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/20—Waste materials; Refuse organic from macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • 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
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The concrete composite material is prepared by introducing a heated thermoplastic waste synthetic resin, sand heated at 190-220 deg.C and 50-90 wt.% precoated aggregate with 1.6 wt.%-2.1 wt.% polyethylene powder into a blender; mixing and melting the article under the pressure of 6 to 10 kg/cm2; and subsequently blending the article to be molded. The product has qualities superior to the conventional article for the material for the engineering and construction industry.

Description

폐플라스틱 콘크리트 복합재료Waste Plastic Concrete Composite

본 발명은 폐플라스틱 콘크리트 복합재에 관한 것으로서, 더욱 상세하게는 폐합성 수지를 복합 재생하여 기존의 건자재에 비해 플라스틱이 함유한 성질을 이용한 제품 생성과 이에 사용하는 재료로 특정 산업폐기물을 처리하고, 건축 토목용 건자재를 제조함에 있어서 기존 제품보다 성질을 개선시키는 것에 관한 것이다.The present invention relates to a waste plastic concrete composite, and more particularly, to recycle the composite synthetic resin to produce a product using the properties contained in the plastic compared to the existing building materials and to treat specific industrial wastes with materials used therein, and The present invention relates to improving properties than conventional products in manufacturing civil construction materials.

일반적으로, 콘크리트 제품은 그 종류가 매우 다양하지만 대체로 철근으로 보강한 콘크리트 제품과 플라스틱을 기질로 하는 큰크리트 제품이 있다. 이러한 제품의 물성은 원료의 종류 및 배합 조건, 성형 방법, 양생방법 및 보강제의 유무에 따라 크게 달라진다.In general, there are many types of concrete products, but there are generally concrete products reinforced with rebar and large concrete products based on plastics. The physical properties of these products vary greatly depending on the type of raw materials and the mixing conditions, molding methods, curing methods, and the presence or absence of reinforcing agents.

일반적으로 종래의 플라스틱 콘크리트(plastic concrete)제품의 기질은 플라스틱을 사용한 복합 재료로서, 예를 들면 폴리머 시멘트 콘크리트, 레진 콘크리트 또는 폴리머 합침 콘크리트 제품 등이 있다.Generally, the substrate of a conventional plastic concrete product is a composite material using plastics, for example, polymer cement concrete, resin concrete, or polymer impregnated concrete product.

우선, 폴리머시멘트 콘크리트 제품은 포틀랜드 시멘트와 물의 혼합물인 시멘트 페이스트와 모래를 혼합하고, 이것에 합성수지 등의 폴리머를 첨가하여 형성한 것이다. 하지만, 이러한 폴리머시멘트 콘크리트 제품은 합성수지를 시멘트 페이스트와 상온에서 혼합시켜야 하기 때문에 물에 잘 용해되는 고무라텍스나, 에폭시 수지, 피치 등만을 사용하고 있다.First, the polymer cement concrete product is formed by mixing cement paste and sand, which is a mixture of portland cement and water, and adding a polymer such as a synthetic resin thereto. However, such polymer cement concrete products use only rubber latex, epoxy resin, pitch, etc., which are well soluble in water because synthetic resins must be mixed with cement paste at room temperature.

또한, 레진 콘크리트 제품은 통상적인 콘크리트의 시멘트 페이스트 대신에 불포화 폴리에스테르 등의 수지를 이용한 것이며 여기에, 경화제와 골재 등을 혼합하고, 성형틀 속에 넣어 가열 시켜서 제품화 한 것이다.In addition, resin concrete products are made of resin such as unsaturated polyester instead of cement paste of conventional concrete, and the curing agent and aggregate are mixed and put into a molding mold and heated to produce a product.

또한, 폴리머 합침 콘크리트 제품은 경화된 콘크리트에 폴리머를 합침 및 고화시켜서 종래의 콘크리트 제품의 성질을 개선시키고자 한 것이다.In addition, polymer impregnated concrete products are intended to improve the properties of conventional concrete products by incorporating and solidifying polymers into hardened concrete.

하지만, 이와 같은 종래의 폴리머 시멘트 제품들은 시멘트 페이스트, 경화제, 골재 등을 사용하므로 생산단가가 많이 소요되었으며, 또한, 플라스틱을 다른 혼합 물질과 혼합 가열 시킨 후 냉각시켜 고체형 제품으로 생산하고 있으나, 플라스틱의 열전도율이 낮기 때문에 가압, 가열, 성형의 경우에 장시간이 소요되고, 따라서 가열로 인하여 제품의 품질이 저하되고 색상이 변하는 문제 등이 있었다.However, these conventional polymer cement products use a lot of production cost because they use cement paste, hardener, aggregate, etc. In addition, the plastic is mixed with other mixed materials, heated and cooled to produce a solid product. Since the thermal conductivity is low, it takes a long time in the case of pressurization, heating, and molding, and thus there is a problem that the quality of the product is lowered and the color changes due to the heating.

또한, 이미 공지된 폐합성 수지를 재생 이용하는 방법으로는, (1) P.V.C를 제외한 플라스틱 폐기물을 분쇄하여 압출 성형해서 농업 자재, 토목 자재, 어업 자재 등으로 단순 재생 가공하는 방법 : (2) 플라스틱에 부착된 먼지, 금속, 모래, 종이류 등을 분리하지 않고 그대로 가열 용융하여 냉각 성형하는 방법 : (3) 플라스틱의 종류에 차별 없이 용융하여 슬러지(sludge)를 첨가하여 반죽하여 건설 토목 자제로 성형 가공하는 방법 : (4) 플라스틱의 종류 형상에 관계없이 분쇄하여 용융 고화하는 방법. 이 방법은 플라스틱을 분쇄하여 접착력 있는 수지를 첨가하여 혼합 균질화 한 후, 용융 압출기에 넣어 섬유 형태로 압출하고 절단, 수냉, 건조시켜 재생 원료로 제품화 하는 방법임 : (5) 석탄을 사용하고 있는 화력발전소에서 발생한 석탄재(FLYASH)를 열가소성 플라스틱과 혼합 반죽하여 재생하는 방법 : (6) 열가소성 플라스틱에 폐유를 가하여 용융한 후 초산비닐, 테레핀수지, 로진(rosin)을 넣고 가열 교반하여 이것을 단독 또는 두 가지 이상의 폴리머를 섞어서 사용하는 방법등이 있고, 도한 여기에 모래, 규사, 점토, 유리, 슬러지 등을 섞어서 가압 성형하여 건재를 제조하는 방법 등이 있다.In addition, as a method of recycling the already known waste synthetic resin, (1) a method of recycling the plastic waste except PVC and extruding it and simply reprocessing it with agricultural materials, civil engineering materials, fishery materials, etc. (3) How to melt and melt the attached dust, metal, sand, paper, etc. without separating them. Method: (4) Method of pulverizing and solidifying by pulverization regardless of the shape of plastic. This method is to pulverize plastic, add homogeneous resin, mix and homogenize it, and then put it into melt extruder, extrude into fiber form, cut, water cool and dry it to produce as recycled raw material: (5) Coal power using coal Method of regeneration by mixing and kneading coal ash (FLYASH) generated from power plant with thermoplastic plastics. (6) After melted by adding waste oil to thermoplastics, add vinyl acetate, terepin resin, rosin, and heat and stir it. There is a method of mixing and using more than two kinds of polymers, and there is also a method of producing a building material by mixing by pressing, sand, silica sand, clay, glass, sludge and the like.

이에 본 발명은 종래의 폐합성 수지 재생 이용 방법과 플라스틱 콘크리트 제품상의 문제점을 해결하기 위한 것으로서, 열매체를 이용하여서 용융 및 혼련에 의해서 만든 폐플라스틱 콘크리트 복합재료와 그 제조 방법을 제공하는데 그 목적이 있다.Accordingly, the present invention is to solve the problems of the conventional waste synthetic resin recycling method and plastic concrete products, the object of the present invention is to provide a waste plastic concrete composite material made by melting and kneading using a heat medium and its manufacturing method. .

본 발명의 또 다른 목적은 종래의 시멘트 콘크리트 재료보다 물성이 우수하고, 가벼우며, 플라스틱 고유의 성질을 갖는 폐플라스틱 콘크리트 복합재료를 제공하는데 있다.Still another object of the present invention is to provide a waste plastic concrete composite material having superior physical properties, light weight, and plastic properties.

또한, 본 발명은 산업폐기물을 재생 이용하므로서 자연 환경을 보호하는 부가적인 목적을 갖는다.In addition, the present invention has the additional object of protecting the natural environment by recycling industrial waste.

이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.

본 발명은 매트릭스로서 열가소성 폐합성 수지를 분쇄 가열하여 골재의 혼합용융, 혼련 및 성형으로 이루어지는 폐플라시틱 콘크리트 복합 재료에 있어서, 가열된 열가소성 폐합성수지와 190℃ 내지 220℃로 가열한 모래 및 쇄석에 폴리에틸렌 분말 1.6중량% 내지 2.1중량%을 미리 코팅한 골재 50중량% 내지 90중량%를 혼련기에 넣고, 6 내지 10㎏/㎤의 압력하에서 혼합 용융시키는 것을 특징으로 하는 폐 플라스틱 콘크리트 복합 재료의 제조 방법이다.The present invention relates to a waste plastic concrete composite material comprising pulverizing and heating a thermoplastic waste synthetic resin as a matrix and mixing, kneading and forming aggregates, wherein the heated thermoplastic waste resin is heated with sand and crushed stone at 190 ° C to 220 ° C. 50 wt% to 90 wt% of the aggregate, pre-coated with 1.6 wt% to 2.1 wt% polyethylene powder, was kneaded into a kneader and manufactured by mixing and melting under a pressure of 6 to 10 kg / cm 3. Way.

이하, 본 발명을 더욱 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail.

본 발명의 폐플라스틱 콘크리트 복합 재료의 제조는 우선 매트릭스로서 폐합성수지를 분쇄하여 계량하고, 250℃(±15℃)로 가열하여, 용융혼련기에 주입하는 단계와, 미리 고온으로 가열시킨 골재를 폴리에칠렌으로 코팅하여 용융혼련기에 함께 투입하는 단계로 이루어진다.In the manufacture of the waste plastic concrete composite material of the present invention, the waste synthetic resin is first pulverized and weighed as a matrix, heated to 250 ° C. (± 15 ° C.), injected into a melt kneader, and the aggregate heated to a high temperature in advance to polyethylene The coating consists of a step of putting together the melt kneader.

우선, 제1단게로서 폐합성 수지를 매트릭스로 사용하기 위해 분쇄 및 가열하여 용융 훈련기에 투입하는 것으로서, 이때 본 발명에서 사용하는 폐합성 수지로는 주로 폴리에칠렌, 폴리프로피렌 수지이며 이를 분쇄기로 분쇄하기 전에, 수지에 부착되어 있는 이물질, 예를 들면 오니, 금속, 종이 등을 제거하는 것이 바람직하다. 이어서, 세척한 상기 수지를 적당한 크기로 세절하여 건조시킨 다음 공기 세탁을 한다.First, as the first step, the waste synthetic resin is pulverized and heated to be used as a matrix, and put into a melt trainer. At this time, the waste synthetic resin used in the present invention is mainly polyethylene, polypropylene resin, which is pulverized with a grinder. Before, it is preferable to remove foreign substances adhering to the resin, for example sludge, metal, paper and the like. Subsequently, the washed resin is chopped to an appropriate size and dried, followed by air washing.

상기의 매트릭스로 사용하는 폐합성 수지의 양은 페플라스틱 콘크리트 복합재의 전체량 대해 약 10중량% 내지 50중량%이 바람직하다. 상기에서 폐합성 수지의 양을 10중량% 이하로 할 경우에는 폐합성 수지가 매트릭스의 역할을 하기가 어렵고, 또한, 상기의 폐합성 수지를 50중량% 이상으로 사용할 경우에는 폐합성 수지의 과다 사용으로 인해 본 발명에서 원하는 플라스틱 콘크리트의 물성, 예를 들면, 밀도, 강도, 탄성류의 향상을 기대하기 어렵다. 이것은 용융혼련기 폐플라스틱의 균질 배합이 어렵기 때문이다.The amount of the waste synthetic resin used as the matrix is preferably about 10% by weight to 50% by weight based on the total amount of the plastic concrete composite. When the amount of the waste synthetic resin is less than 10% by weight, it is difficult for the waste synthetic resin to act as a matrix, and when the waste synthetic resin is used at 50% by weight or more, excessive use of the waste synthetic resin is required. Due to this, it is difficult to expect the improvement of the physical properties of the plastic concrete desired in the present invention, for example, density, strength, and elastic flow. This is because homogeneous mixing of the waste kneader waste plastic is difficult.

한편, 본 발명에서는 상기의 폐합성 수지와 함께 투입하는 충전제인 골재를 열매체로 이용한다. 상기의 골재는 모래 및/또는 쇄석을 사용한다. 즉, 상기의 충전제인 골재를 미리 약 190℃ 내지 약 220℃로 가열로에서 예비 가열한 후에 폴리에칠렌으로 골재를 코팅한다. 폴리에칠렌 코팅은 폴리에칠렌 분말을 탱크 내에 압축공기로 불어서 비산 시킴과 동시에 가열된 골재를 통과시켜서 순간적으로 골재에 코팅한다. 즉, 골재인 모래 및/또는 쇄석은 1차로 190℃ 내지 220℃로 가열한 다음 폴리에칠렌 분말을 골재에 대해 1.6중량% 내지 2.1중량%를 첨가하여 코팅한다. 고온 용융(HOT MELT)접착제로서 폴리에칠렌 분말을 골재에 코팅하는 이유는 골재와 폴리에칠렌의 상호 혼화성이 우수하므로 2차로 폐합성 수지와 용융혼련시 상호 우수한 접착력을 유지할 수 있다. 그리고 세립(細粒)을 품고 있는 것에는 부착력이 있다. 부착력은 미세한 모래 입자 주위에 있는 폴리에칠렌 모노머의 얇은 막에서 일어나는 표면장력에 의해서 일어나는 것으로 마치 세립토(細粒土)에서 물의 얇은 막으로 부착력이 생기는 것과 유사하다. 그러므로 미립자를 포함한 골재에는 폴리에칠렌 모노머를 코팅하여 결합재로 쓰는 것이 바람직하다. 이러한 방법으로 폐합성 수지와 골재를 단순히 용융 혼련시켰을 때 나타나는 불균질성을 극복할 수 있다.On the other hand, in this invention, the aggregate which is a filler put together with said waste synthetic resin is used as a heat medium. The aggregate uses sand and / or crushed stone. That is, the aggregate, which is the filler above, is preheated in a heating furnace at about 190 ° C. to about 220 ° C. before the aggregate is coated with polyethylene. The polyethylene coating is instantaneously coated on the aggregate by passing the heated aggregate through blowing the polyethylene powder into the tank with compressed air and scattering it. That is, sand and / or crushed stone, which is aggregate, is first heated to 190 ° C to 220 ° C and then the polystyrene powder is coated by adding 1.6% to 2.1% by weight to the aggregate. The reason why the polyethylene powder is coated on the aggregate as the hot melt adhesive is excellent because of the mutual miscibility between the aggregate and the polyethylene, and thus, excellent adhesion between the waste synthetic resin and the melt kneading can be maintained. And having fine grains has adhesion. Adhesion is caused by the surface tension that occurs in a thin membrane of polyethylene monomer around fine sand particles, similar to the adhesion of fine water to a thin membrane of water. Therefore, it is preferable that the aggregate including fine particles be coated with a polyethylene monomer and used as a binder. In this way, it is possible to overcome the heterogeneity seen when simply melt kneading the waste synthetic resin and aggregate.

이어서, 상기의 골재를 폐합성 수지와 함께 용융훈련기에 동시에 투입하고, 혼련기를 밀폐하고 혼련기 내에 6㎏/㎤ 내지 10㎏/㎤의 공기압력을 가하여 5분 내지 12분간 훈련시키고, 투입된 폐합성 수지가 용융 혼련에 의해 용융 상태의 매트릭스로 되어 상기의 충진제인 골재가 상기의 폐합성 수지와 응집 결합하게 된다.Subsequently, the aggregate is added to the melt trainer together with the waste synthetic resin at the same time, the kneader is sealed and trained for 5 to 12 minutes by applying an air pressure of 6 kg / cm 3 to 10 kg / cm 3 in the kneader, and the injected waste synthesis The resin becomes a matrix in a molten state by melt kneading, and the aggregate which is the filler is cohesively bonded with the waste synthetic resin.

특히, 용융 혼련과정에서 폐합성 수지의 고분자 구조를 가능한 한 파괴하지 않도록 하기 위하여 가열 온도를 250℃(±15℃) 범위로 한다.In particular, the heating temperature is in the range of 250 ° C. (± 15 ° C.) in order to avoid destroying the polymer structure of the waste synthetic resin as much as possible in the melt kneading process.

상기의 골재인 모래 및/또는 쇄석은 염분 및 오물을 제거하여 사용 한다.The above-mentioned aggregate sand and / or crushed stone is used to remove salt and dirt.

상기한 바와 같이 용융 혼련 시킨 후에 성형은 틱몰딩 컴파운드(THICK MOLDING COMPOUND)하거나 또는 원심력 성형하여 냉각시키게 되면 골재는 콘크리트 복합재 내부로 들어가고, 표면은 플라스틱의 점탄성으로 매끄러운 형태를 갖는 것으로서 본 발명에서 요구하는 폐플라스틱 콘크리트 복합재료가 얻어지게 된다.After melting and kneading as described above, when the molding is made by THICK MOLDING COMPOUND or centrifugal molding and cooled, the aggregate enters into the concrete composite, and the surface has a smooth, viscoelastic form of plastic. Waste plastic concrete composite is obtained.

본 발명에 따라서 얻어진 폐플라스틱 콘크리트 복합재료는 종래의 플라스틱 콘크리트와 폐합성 수지 재생이용 제품에 비하여 플라스틱 고유의 성질, 예를 들면, 내수성, 내습성, 내 화학 약품성, 내유성, 내산화성, 인장, 충격 및 마찰력이 안정되게 나타나고, 폐합성 수지류를 완전히 처리하여 재생 이용함으로써 환경보호 측면에서 큰 역활을 하게 된다.The waste plastic concrete composite material obtained according to the present invention has properties inherent in plastics, such as water resistance, moisture resistance, chemical resistance, oil resistance, oxidation resistance, tensile strength, impact, compared to conventional plastic concrete and waste synthetic resin recycling products. And frictional force appears to be stable, and plays a big role in environmental protection by completely reprocessing and using waste synthetic resins.

또한, 본 발명에서 사용하는 폐합성 수지와 골재 등이 완전한 결합 구조를 이루기 때문에 폐플라스틱 콘크리트 복합 재료의 흡수성, 투수성 및 동결 융해에 대한 내성이 강하게 나타나며, 특히, 인장 강도, 굽힘 강도, 내마모성, 내 충격성 등의 물성도 우수하다.In addition, since the waste synthetic resin and aggregate used in the present invention form a complete bonding structure, the absorbency, permeability, and freeze-thawing resistance of the waste plastic concrete composite are strongly shown. Particularly, tensile strength, bending strength, abrasion resistance, It also has excellent physical properties such as impact resistance.

또한, 본 발명에 의한 폐플라스틱 콘크리트 복합 재료는 기존의 플라스틱 콘크리트와 비교하여 월등히 가벼워서 토목 또는 건축의 시공이 매우 간편하며, 대량생산도 가능하고 제조 비용이 적게 들뿐 아니라 필요에 따라서, 2차로 폴리에칠렌 필름 코팅으로 색상도 선명하게 나타낼 수 있으며 안료의 첨가도 용이하여 원하는 색상을 낼 수 있으며 미적감(美的感)도 향상시킬 수 있는 장점도 있다.In addition, the waste plastic concrete composite material according to the present invention is much lighter than conventional plastic concrete, so the construction of civil engineering or construction is very simple, mass production is possible and the manufacturing cost is low, and if necessary, the secondary polyethylene Colors can be clearly displayed by the film coating, and pigments can be easily added to produce a desired color, and aesthetics can also be improved.

또한 본 발명에 따른 복합 재료는 표면 평활성이 좋으며, 플라스틱 매트릭스와 골재와의 결합이 역학적, 물리적으로 시멘트 콘크리트나 기존 재생 합성수지 제품보다 우수하다.In addition, the composite material according to the present invention has good surface smoothness, and the bonding between the plastic matrix and the aggregate is mechanically and physically superior to that of cement concrete or conventional recycled synthetic resin products.

그리고, 고분자에 강한 상호작용을 하는 충진제로서 골재를 함유한 고분자 복합 재료는 입자 표면에 물리적, 화학적으로 강하게 결합함으로써 폴리머 벌크보다 오히려 부피 마찰력에 있어서 효과적이다.In addition, the polymer composite material containing aggregate as a filler having a strong interaction with the polymer is physically and chemically strongly bonded to the particle surface, and thus is more effective in volumetric friction than polymer bulk.

이와 같은 본 발명에 따른 폐플라스틱 콘크리트 복합 재료는 가공성이 양호하여 절단, 천공 및 조립이 가능하여 블록, 건물의 벽체, 물 탱크, 정화조, 사일로 및 토+목용 각종관 등의 건자재로 유용하다. 특히, 콘크리트 홈관의 대체물과 건물의 벽체로서 유용하다. 이것의 제조 방법은 원심 주형(Centrifugal Casting)으로 금형관에 용융 상태의 폐플라스틱 콘크리트를 흘려 넣어서 원심력으로 금형 케비티를 충만시켜서 성형한다. 이때 원심력으로 기포(氣泡)는 용이하게 소멸하며 내,외면이 평활한 관이 형성된다.Such a waste plastic concrete composite material according to the present invention is good workability and can be cut, perforated and assembled to be useful as building materials such as blocks, walls of buildings, water tanks, septic tanks, silos, and various types of pipes for earth and wood. In particular, it is useful as a substitute for concrete grooves and walls of buildings. In the manufacturing method, the waste plastic concrete in the molten state is poured into the mold tube by centrifugal casting, and the mold cavity is filled with centrifugal force to be molded. At this time, bubbles (氣泡) are easily extinguished by centrifugal force, and the inner and outer surfaces have a smooth tube.

시트상 성형은 두꺼운 성형품을 위한 틱몰딩 컴파운딩(THICK MOLDING COMPOUND)방법으로 상기의 재료를 와이빙 로다로 흘려서 상,하에서 폴리에칠렌 캐리어 필름에 끼우거나 혹은 P.V.C로 코팅하거나 금속제 박판으로 코팅하여 냉수막을 상,하로 부여하여 여러 개의 로다를 거치게 함으로써 두께 5㎝ 내지 20㎝ 시트상 제품을 잘라낸다.Sheet-shaped molding is a THICK MOLDING COMPOUND method for thick molded products.The above material is flowed through a wiping rod and inserted into a polyethylene carrier film or coated with PVC or a thin metal plate on top and bottom. The sheet-shaped product is cut out by thickness 5cm-20cm by giving it to several loaders.

Claims (1)

매트릭스로서 열가소성 폐합성 수지를 분쇄 가열하여 골재와 혼합용융, 혼련 및 성형으로 이루어지는 폐플라스틱 콘크리트 복합 재료에 있어서, 가열된 열가소성 폐합성수지와 190℃ 내지 220℃로 가열한 모래 및 쇄석에 폴리에틸렌 분말 1.6중량% 내지 2.1중량%를 미리 코팅한 골재 50중량% 내지 90중량%를 혼련기에 넣고, 6 내지 10㎏/㎤의 압력하에서 혼합 용융시키는 것을 특징으로 하는 폐 플라스틱 콘크리트 복합 재료의 제조 방법.In a waste plastic concrete composite material consisting of aggregate melting, kneading and molding by mixing and heating a thermoplastic waste synthetic resin as a matrix, 1.6 weight of polyethylene powder is added to the heated thermoplastic waste synthetic resin and sand and crushed stone heated to 190 ° C to 220 ° C. 50% to 90% by weight of aggregate coated with% to 2.1% by weight in advance to a kneader and mixed and melted under a pressure of 6 to 10 kg / cm < 3 >.
KR1019930017592A 1993-09-03 1993-09-03 Method for concrete composite materials using waste plastic KR960011322B1 (en)

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WO2002090288A1 (en) * 2001-05-08 2002-11-14 Shell Internationale Research Maatschappij B.V. Compositions comprising solid particles and binder

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KR100336877B1 (en) * 1999-07-29 2002-05-15 정옥례 Construction material using waste members
KR100331479B1 (en) * 2000-01-15 2002-04-09 이광민 The laminating substance of base course for permeable pavement using waste synthetic fibers and it's manufacturing method
KR20010078910A (en) * 2001-05-16 2001-08-22 조항웅 Sand mixed plastic concrete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090288A1 (en) * 2001-05-08 2002-11-14 Shell Internationale Research Maatschappij B.V. Compositions comprising solid particles and binder

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