KR19990053897A - Flooring and building wall moldings using waste plastic and manufacturing method thereof - Google Patents

Flooring and building wall moldings using waste plastic and manufacturing method thereof Download PDF

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Publication number
KR19990053897A
KR19990053897A KR1019970073600A KR19970073600A KR19990053897A KR 19990053897 A KR19990053897 A KR 19990053897A KR 1019970073600 A KR1019970073600 A KR 1019970073600A KR 19970073600 A KR19970073600 A KR 19970073600A KR 19990053897 A KR19990053897 A KR 19990053897A
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waste plastic
weight
waste
flooring
building wall
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KR1019970073600A
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Korean (ko)
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KR100349180B1 (en
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민병일
김진태
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신현준
재단법인 포항산업과학연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
    • B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/265—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor pressure being applied on the slip in the filled mould or on the moulded article in the mould, e.g. pneumatically, by compressing slip in a closed mould
    • 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
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/141—Slags
    • C04B18/142—Steelmaking slags, converter slags
    • 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
    • C04B26/006—Waste materials as binder

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Structures (AREA)

Abstract

본 발명은 폐플라스틱의 활용방안에 관한 것이며; 그 목적은 바인더인 폐플라스틱과 강화재인 제강슬래그 또는 석재파쇄물가 적절히 혼합되어 강도 및 외양성을 가지는 성형물 및 그 제조방법을 제공함에 있다.The present invention relates to the utilization of waste plastics; The object is to provide a molded article having strength and appearance by mixing waste plastic as a binder and steel slag or crushed stone as a reinforcing material, and a manufacturing method thereof.

상기 목적을 달성하기 위한 본 발명은, 중량%로, 폐플라스틱:3-90%, 제강슬래그:97-10%로 조성되는 하층과 폐플라스틱:3-90%, 석재분말:97-10%로 조성되는 상층의 2층구조로 형성된 폐플라스틱을 이용한 바닥재 및 건축벽재용 성형물 및 그 제조방법에 관한 것을 그 요지로 한다.The present invention for achieving the above object, by weight%, waste plastic: 3-90%, steel slag: 97-10% of the lower layer and waste plastic: 3-90%, stone powder: 97-10% The gist of the flooring material and the building wall material using the waste plastic formed by the two-layer structure of the upper layer to be formed, and a method of manufacturing the same.

Description

폐플라스틱을 이용한 바닥재 및 건축벽재용 성형물 및 그 제조방법Flooring and building wall moldings using waste plastic and manufacturing method thereof

본 발명은 폐플라스틱의 활용방안에 관한 것으로써, 보다 상세하게는 폐플라스틱을 보도블럭 또는 건축내장재등으로 이용하기 위한 성형물 및 그 제조방법에 관한 것이다.The present invention relates to the utilization of waste plastics, and more particularly, to a molded article and a method for manufacturing the waste plastics for use as sidewalk blocks or building interior materials.

폐플라스틱의 재활용은 자연 환경 보존과 자원 활용 측면에서 21세기에 가장 필요한 기술의 하나로 대두될 것이며, 이러한 추세에 힘입어 폐플라스틱을 활용하기 위한 연구가 현재 여러방면으로 진행되고 있다.Recycling of waste plastics will be one of the most necessary technologies in the 21st century in terms of preserving the natural environment and utilizing resources, and with this trend, researches on using waste plastics are being conducted in various ways.

현재까지 주로 개발된 폐플라스틱의 재활용 기술들을 살펴보면, 주로 폐플라스틱 수지의 분쇄기술과 단일 수지로 된 폐플라스틱의 활용방법에 관한 것이 주종을 이루고 있다. 예를들면, 최근 유럽특허 EP 654496 (95/5/24)을 비롯하여, AU 935235 (94/3/31), US 5300267 (94/4/5), DE 4207972 (93/7/15) 등이 모두 단일 폐플라스틱의 활용에 관한 기술들이다. 그리고, 일부 혼합된 폐플라스틱의 재활용을 위한 혼합 폐플라스틱의 파쇄기술에 관하여 국제특허 WO 9510402 (95/4/20)와 JP 6155463 (94/6/3)등이 제안된 바 있다.Looking at the recycling technology of the waste plastic mainly developed to date, mainly the pulverization technology of waste plastic resin and how to use the waste plastic of a single resin. For example, recent European patent EP 654496 (95/5/24), AU 935235 (94/3/31), US 5300267 (94/4/5), DE 4207972 (93/7/15), All are techniques for the use of a single waste plastic. In addition, international patents WO 9510402 (95/4/20) and JP 6155463 (94/6/3) have been proposed regarding shredding techniques of mixed waste plastics for recycling some mixed waste plastics.

한편, 제철소 제강공정에서는 제강슬래그가 발생하는데, 아직 효과적인 활용방안이 제시되지 못해 많은 양이 폐기되고 있는 실정이다.On the other hand, steelmaking slag occurs in the steelmaking process of the steel mill, a large amount is being discarded because no effective utilization method has yet been proposed.

본 발명자들은 위에서 언급한 폐플라스틱의 활용방안을 모색하던중 제강슬래그와 석재파쇄물 및 폐플라스틱의 특성을 이용하면 그 재활용이 가능하다는 것을 확인하고 본 발명을 제안하게 이르렀다.The inventors of the present invention have found that the use of the characteristics of steelmaking slag, crushed stone and waste plastic can be recycled while exploring the utilization method of the above-mentioned waste plastic and came to propose the present invention.

본 발명의 목적은 바인더인 폐플라스틱과 강화재인 제강슬래그 또는 석재파쇄물이 적절히 혼합되어 강도 및 외양성을 가지는 성형물을 제공하는 것이다.An object of the present invention is to provide a molded article having strength and appearance by appropriately mixing waste plastic as a binder and steel slag or crushed stone as a reinforcing material.

본 발명의 다른 목적은 강도 및 외관이 우수한 2층구조로 된 성형물의 제조방법을 제공하는 것이다.Another object of the present invention is to provide a method for producing a molded article having a two-layer structure having excellent strength and appearance.

상기 목적을 달성하기 위한 본 발명은 중량%로, 폐플라스틱:3-90%, 제강슬래그:97-10%로 조성되는 성형물에 관한 것이다.The present invention for achieving the above object relates to a molded article composed of weight percent, waste plastic: 3-90%, steelmaking slag: 97-10%.

또한, 중량%로 폐플라스틱:3-90%, 석재분말:97-10%로 조성되는 성형물에 관한 것이다.The present invention also relates to a molded product composed of waste plastic: 3-90% and stone powder: 97-10% by weight.

또한, 중량%로, 폐플라스틱:3-90%, 제강슬래그:97-10%로 조성되는 하층과 폐플라스틱:3-90%, 석재분말:97-10%로 조성되는 상층의 2층구조로 형성되는 성형물에 관한 것이다.In addition, the two-layer structure consists of a lower layer composed of waste plastic: 3-90%, steel slag: 97-10%, and an upper layer composed of waste plastic: 3-90%, stone powder: 97-10%. It relates to a molding to be formed.

상기 다른 목적을 달성하기 위한 본 발명의 성형물 제조방법은, 폐플라스틱을 이용한 성형물의 제조방법에 있어서, 3-90중량%의 폐플라스틱을 160-200℃의 온도범위에서 용융시키고, 여기에 97-10중량%의 제강슬래그를 첨가한 후 기계적으로 혼합하여 제 1용융혼합물을 얻는 단계; 3-90중량%의 폐플라스틱을 160-200℃의 온도범위에서 용융시키고, 여기에 97-10중량%의 석재분말을 첨가한 후 기계적으로 혼합하여 제 2용융혼합물을 얻는 단계; 및 상기 제 1용융혼합물을 금형에 주입하고, 이어 주입된 제 1용융혼합물 위헤 상기 제 2용융혼합물을 주입한 다음 가압성형하는 단계;를 포함하여 구성된다.Molding method of the present invention for achieving the above another object, in the method for producing a molding using waste plastic, 3-90% by weight of the waste plastic is melted in the temperature range of 160-200 ℃, here 97- Adding 10% by weight of steelmaking slag and then mechanically mixing to obtain a first molten mixture; Melting 3-90% by weight of waste plastic at a temperature in the range of 160-200 ° C., adding 97-10% by weight of stone powder and mechanically mixing to obtain a second molten mixture; And injecting the first molten mixture into a mold, and then injecting the second molten mixture onto the injected first molten mixture followed by pressing.

이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.

본 발명은 폐기물인 폐플라스틱을 바인더로 이용하고 석재 파쇄물과 제강슬래그를 강화제로 이용하여 성형물을 제조하는데, 특징이 있다.The present invention is characterized by producing a molding using waste plastic waste as a binder and using stone crushed material and steelmaking slag as reinforcing agents.

먼저, 본 발명에 이용하는 폐플라스틱은 산업계 폐플라스틱은 물론 일반도시계 폐플라스틱도 사용할 수 있다. 이때, 폐플라스틱은 폴리에틸렌(PE), 폴리프로필렌(PP), 폴리스티렌(PS)계중 어느 한 종류 또는 이들이 혼합된 것과 또한, 기타 다른계 수지나 무기질등이 물질들이 혼합된 폐플라스틱들을 사용할 수 있다. 만일 혼합폐플라스틱을 사용할 경우에는 그냥 사용해도 되나 좀더 좋은 특성을 얻고자 한다면, 본 발명자가 대한민국 특허출원번호 97-49238호에 제안한 '혼합폐플라스틱의 상용성 향상방법'에 제시한 방법에 따라 혼합폐플라스틱의 상용성을 확보하면 된다. 그리고, 폐플라스틱은 일정온도이상으로 가열하여 녹여서 사용할 수도 있고, 분해시켜 바인더로 이용할 수도 있다.First, the waste plastic used in the present invention can be used not only industrial waste plastic, but also general municipal waste plastic. At this time, the waste plastic may be used any one kind of polyethylene (PE), polypropylene (PP), polystyrene (PS), or a mixture thereof, and waste plastics in which other materials such as resins and inorganics are mixed. If mixed waste plastics are used, they can be used as they are. However, if you want to obtain better characteristics, the mixture can be mixed according to the method suggested by the inventors in Korean Patent Application No. 97-49238. The compatibility of waste plastics can be secured. In addition, the waste plastic may be used by melting it by heating above a predetermined temperature, or by dissolving it as a binder.

본 발명에서 강화재로 이용하는 상기 제강슬래그는 일반적으로 제철소의 제강공정에서 발생하는 슬래그이면 가능하다. 예를들면 전로슬래그, 전기로슬래그가 있다. 통상, 제강슬래그는 지금추출을 위해 파쇄되는데, 이때, 그 입도가 약 8mm이하로 분쇄된다. 본 발명은 이러한 제강슬래그를 그냥 사용하면 된다.The steelmaking slag used as a reinforcing material in the present invention may be generally slag generated in a steelmaking process of an ironworks. For example, converter slag and electric furnace slag. Typically, steelmaking slag is now crushed for extraction, at which the particle size is pulverized to about 8 mm or less. In the present invention, the steelmaking slag may be used.

상기 제강슬래그와 같이 본 발명에서 강화재로 이용하는 석재분말은 자연석재로 일반 산업계에서 이용할 때 발생하는 파쇄석재분말이다. 그 종류로는 방해석등 여러 가지가 있으나 그 종류는 상관이 없으며, 여러종류의 석재분말을 혼합하여 사용하면 외양성이 더 우수해진다. 그리고, 그 입도는 본 발명에 따라 얻어진 성형물의 두께에 따라 다양하게 이용할 수 있으므로 특별히 한정하지 않는다. 참고로, 일반 산업계에서 발생하는 석재분말은 약 30-40mesh 크기로 입도분급된 후 취급되고 있으므로 이를 그냥 이용하면 된다.Stone powder used as a reinforcing material in the present invention, such as steelmaking slag is a crushed stone powder that occurs when used in the general industry as a natural stone. There are various kinds of calcite such as calcite, but the type does not matter, and when various kinds of stone powder are mixed and used, the appearance is better. In addition, the particle size is not particularly limited because it can be used in various ways depending on the thickness of the molding obtained according to the present invention. For reference, the stone powder generated in the general industry is treated after being classified after the particle size in the size of about 30-40 mesh, just use it.

위에서 언급한 바인더인 폐플라스틱과 강화재인 제강슬래그 또는 석재분말을 적정비율로 혼합하면 강도 및 외양성이 우수한 성형물을 얻을 수 있다.When the above-mentioned binder waste plastic and reinforcing steelmaking slag or stone powder are mixed at an appropriate ratio, a molded product having excellent strength and appearance can be obtained.

본 발명에 따라, 성형물은 폐플라스틱:3-90중량%(이하, 단지 '%'라 함), 제강슬래그:97-10%로 조성되거나, 또는 폐플라스틱:3-90%, 석재분말:97-10%로 조성되는 것이다. 이와 같이 성분을 조절하는 이유는, 폐플라스틱이 3%미만 함유되는 경우 바인더 역할이 미비하여 성형물이 강도가 나타나지 않으며. 폐플라스틱이 90%를 넘으면 상대적으로 제강슬래그 또는 석재분말의 함량이 너무 작아 강도증가 효과와 기타 물성효과가 떨어지기 때문이다.According to the invention, the molding is composed of waste plastic: 3-90% by weight (hereinafter referred to simply as '%'), steelmaking slag: 97-10%, or waste plastic: 3-90%, stone powder: 97 It is -10%. The reason for controlling the components as such, when the waste plastic is contained less than 3% of the binder role is insufficient and the molding does not show the strength. If the waste plastic exceeds 90%, the content of steel slag or stone powder is so small that the strength increase and other physical properties are inferior.

상기 폐플라스틱과 제강슬래그로 된 성형물은 저렴하고 강도특성이 우수한 장점이 있으나, 외관이 미려하지 못한 단점이 있다. 그리고, 상기 폐플라스틱과 석재분말은 석재의 색상과 질감을 나타내어 미려한 외관을 가지나, 석재분말이 비싸서 제조원가가 높아지는 단점이 있다.Molded products made of the waste plastic and steelmaking slag are inexpensive and have excellent strength characteristics, but have a disadvantage in that the appearance is not beautiful. In addition, the waste plastic and the stone powder have a beautiful appearance by showing the color and texture of the stone, but the disadvantage is that the production cost increases because the stone powder is expensive.

따라서, 본 발명자는 폐플라스틱:3-90%, 제강슬래그:97-10%로 조성되는 하층과 폐플라스틱:3-90%, 석재분말:97-10%로 조성되는 상층의 2층구조를 가지는 성형물을 개발하였다. 이때, 하층 및 상층의 두께는 성형물의 적용되는 용도에 따라 다양하게 할 수 있으며, 또한, 상기 제강슬래그 및 석재분말의 입도에 따라서 다양하게 할 수 있다. 가능한 상층의 두께를 얇게 형성하는 것이 저렴한 성형물을 제공할 수 있다.Therefore, the present inventors have a two-layer structure of the lower layer composed of waste plastic: 3-90%, steelmaking slag: 97-10%, and the upper layer composed of waste plastic: 3-90%, stone powder: 97-10%. Moldings have been developed. At this time, the thickness of the lower layer and the upper layer can be varied depending on the application of the molding, and also can be varied according to the particle size of the steelmaking slag and stone powder. Forming as thin an upper layer as possible can provide an inexpensive molding.

이하, 본 발명의 성형물의 제조방법을 설명한다.Hereinafter, the manufacturing method of the molding of this invention is demonstrated.

먼저, 3-90중량%의 폐플라스틱을 160-200℃의 온도범위에서 용융시키는 것이 바람직하다. 그 이유는 160℃이하인 경우 폐플라스틱 수지의 균일한 용융이 이루어지지 않고 특히, 혼합폐플라스틱을 사용할 경우 폴리프로필렌이 녹지 않아 덩어리로 존재하게 되므로 물성에 영향을 미치게 되며, 200℃이상의 경우 용융은 빨리 잘 이루어지나 폴리에틸렌과 같은 낮은 용융점을 갖는 수지의 경우 열분해가 발생하기 때문이다.First, it is preferable to melt 3-90% by weight of waste plastic in the temperature range of 160-200 ℃. The reason is that below 160 ℃, the uniform melting of waste plastic resin is not made. Especially, when mixed waste plastic is used, polypropylene does not melt and exists as a lump, which affects the physical properties. This is due to the thermal decomposition of resins with good melting points, such as polyethylene.

상기와 같이 용융된 폐플라스틱에 97-10%의 제강슬래그를 첨가하고, 기계적으로 혼합하여 제 1용융혼합물을 얻는다. 이때 혼합은 특별한 방법이 있는 것이 아니며 가능한 균일하게 혼합되도록 하면 된다.97-10% of steelmaking slag is added to the molten waste plastic as described above, and mechanically mixed to obtain a first molten mixture. In this case, there is no special method of mixing, and the mixing may be performed as uniformly as possible.

또한, 상기와 마찬가지로 용융된 폐플라스틱에 97-10%의 석재분말을 첨가한 후 기계적으로 혼합하여 제 2용융혼합물을 얻는다.In addition, as described above, 97-10% of the stone powder is added to the molten waste plastic and then mechanically mixed to obtain a second molten mixture.

상기 제 1용융혼합물을 금형에 주입하고, 이어 주입된 제 1용융혼합물 위헤 상기 제 2용융혼합물을 주입한다. 이때, 주입은 고른 두께로 주입하면 된다.The first melt mixture is injected into a mold, and then the second melt mixture is injected onto the injected first melt mixture. In this case, the injection may be injected at an even thickness.

상기와 같이 주입한 다음 가압성형하면 2층 구조를 갖는 성형물이 얻어진다. 이때성형압력은 5-50㎏/㎠의 압으로 성형하는 것이 바람직하다. 그 이유는 5㎏/㎠미만의 경우 강도가 부족하고 50㎏/㎠를 넘는 경우 의미없는 과압하로 제조원가가 상승한다.After injection as described above and press molding, a molded article having a two-layer structure is obtained. At this time, the molding pressure is preferably molded at a pressure of 5-50 kg / ㎠. The reason for this is that less than 5 kg / cm 2, the strength is insufficient, and more than 50 kg / cm 2, the manufacturing cost increases due to meaningless overpressure.

위와 같은 연속적인 방법에서 제 1용융혼합물 또는 제 2용융혼합물로 된 성형물을 얻고자 하면, 상기 금형에 주입하는 공정에서 제 1용융혼합물만 주입하고 성형하거나 또는 제 2용융혼합물만 주입하여 성형하면 된다.In order to obtain the molded product of the first melt mixture or the second melt mixture in the continuous method as described above, in the process of injecting into the mold, only the first melt mixture is injected and molded, or only the second melt mixture is injected and molded. .

그리고, 본 발명에 의해 제조되는 성형물의 강도를 더 높이고자 한다면 강화재로 유리섬유나 탄소섬유 또는 암면을 추가로 첨가할 수 도 있다.And, if you want to further increase the strength of the molded product produced by the present invention, glass fiber, carbon fiber or rock wool may be further added as a reinforcing material.

본 발명에 따라 제조된 성형물은 기존의 자연석재의 단점인 취성과 같은 현상이 없어 그 수명을 크게 향상할 수 있다. 따라서, 기존의 자연석재가 이용되는 건축바닥 또는 보도블럭 등의 바닥재 및 건축벽재로 이용할 수 있으며, 기타 그 특성이 맞는 곳이면 다양하게 적용될 수 있다.Molded article prepared according to the present invention is not a phenomenon such as brittleness which is a disadvantage of the existing natural stone can greatly improve its life. Therefore, it can be used as a flooring material and building wall material, such as a building floor or sidewalk block using the existing natural stone, it can be variously applied as long as the characteristics of the other.

이하, 본 발명을 실시예를 통하여 구체적으로 설명한다.Hereinafter, the present invention will be described in detail through examples.

[실시예 1]Example 1

아래 표 1의 조성으로 이루어진 폐플라스틱 혼합 성형물을 만들었으며, 상용화제 또는 가교제 등의 첨가제는 첨가하지 않았다. 이 폐플라스틱 성형물을 5mm 정도 크기로 자른 후에 1일 이상 바람이 통하는 위치에서 건조시켰다. 건조된 폐플라스틱을 하기 표 2와 같은 양으로 하고, 200℃의 온도로 가열하여 용융시킨 후 여기에, 0.1-2mm의 제강슬래그(T.Fe:15-24%, CaO:40-50%, SiO2:5-10%, MnO:3-7% 등을 함유하는 것)를 첨가하여 기계적으로 혼합하여 제 1용융혼합물을 얻었다. 또한 30-40mesh의 석재분말인 방해석분말을 첨가하고 기계적으로 혼합하여 제 2용융혼합물을 얻었다.A waste plastic mixed molding made of the composition of Table 1 was made, and no additives such as a compatibilizer or a crosslinking agent were added. This waste plastic molding was cut to a size of about 5 mm and then dried in a windy location for at least one day. The dried waste plastics were prepared in an amount as shown in Table 2 below, and heated and melted at a temperature of 200 ° C., followed by 0.1-2 mm of steelmaking slag (T.Fe: 15-24%, CaO: 40-50%, SiO 2 : 5-10%, MnO: 3-7% and the like) were added and mechanically mixed to obtain a first melted mixture. In addition, a calcite powder, which is a 30-40 mesh stone powder, was added and mechanically mixed to obtain a second molten mixture.

상기 제 2용융혼합물을 금형하단에 2-5mm정도의 고른 두께로 주입하고 그 위에 상기 제 1용융혼합물을 2cm 정도의 두께로 고르게 주입한 후 10㎏/㎠의 압력을 가하여 성형하였다. 이와 같이 얻은 성형물의 굽힘강도 및 압축강도를 측정하고 그 결과를 하기 표 2에 나타내었다.The second molten mixture was injected into the bottom of the mold with an even thickness of about 2-5 mm, and the first molten mixture was evenly injected into the thickness of about 2 cm, and then molded by applying a pressure of 10 kg / cm 2. The bending strength and the compressive strength of the molding thus obtained were measured and the results are shown in Table 2 below.

플라스틱 종류Plastic type 폴리에틸렌Polyethylene 폴리프로필렌Polypropylene 폴리스타이렌Polystyrene 기타Etc 중량%weight% 40-6040-60 15-2515-25 15-2515-25 10%이내Within 10%

폐플라스틱(중량%)Waste Plastic (wt%) 55 1010 1515 2020 2525 3030 3535 기존코크리트 벽돌Original Concrete Brick 굽힘강도(㎏/㎟)Bending strength (㎏ / ㎠) 0.30.3 1.31.3 1.41.4 1.51.5 2.92.9 1.81.8 1.51.5 -- 압축강도(㎏/㎟)Compressive strength (㎏ / ㎠) 0.60.6 4.34.3 4.54.5 4.74.7 7.87.8 4.24.2 2.72.7 0.4-0.80.4-0.8

상기 표 2에 나타난 바와 같이, 본 발명에 따라 2층구조로 된 성형물은 기존 콘크리트 벽돌보다 압축강도가 우수함을 알 수 있었다.As shown in Table 2, the molded article having a two-layer structure according to the present invention was found to have superior compressive strength than the existing concrete brick.

본 발명자가 이 성형물을 육안으로 확인한 결과, 성형물은 제강슬래그가 있는 측면은 검은색상을 나타내었으나 천연방해석의 있는 측면은 천연방해석과 같은 문양과 색상을 나타내어 자연석재의 분위기를 갖고 있어 미장성이 대단히 우수하였다.As a result of the present inventors visually confirming the molding, the molding showed black color on the side with steel slag, but the side of natural calcite exhibited the same pattern and color as natural calcite and has the atmosphere of natural stone. Excellent.

상술한 바와 같이, 본 발명은 플라스틱 및 제강슬래그를 활용하여 자원재활용 및 자연보호에 일조할 수 있으며, 바닥재 및 건축벽재를 저렴하게 제공할 수 있는 효과가 있는 것이다.As described above, the present invention can contribute to resource recycling and nature conservation by utilizing plastic and steelmaking slag, and it is effective to provide flooring and building wall materials at low cost.

Claims (5)

중량%로 폐플라스틱:3-90%, 제강슬래그:97-10%로 조성되는 폐플라스틱을 이용한 바닥재 및 건축벽재용 성형물Molded flooring and building wall materials using waste plastics composed of waste plastic: 3-90% by weight and steel slag: 97-10% by weight 중량%로 폐플라스틱:3-90%, 석재분말:97-10%로 조성되는 폐플라스틱을 이용한 바닥재 및 건축벽재용 성형물.Molded for flooring and building wall materials using waste plastic, which is composed of waste plastic: 3-90% by weight and stone powder: 97-10% by weight. 중량%로, 폐플라스틱:3-90%, 제강슬래그:97-10%로 조성되는 하층과 폐플라스틱:3-90%, 석재분말:97-10%로 조성되는 상층의 2층구조로 형성된 폐플라스틱을 이용한 바닥재 및 건축벽재용 성형물.Waste formed by weight of two layers of waste plastic: 3-90%, steel slag: 97-10%, and lower plastic: 3-90%, stone powder: 97-10%. Molded flooring and building wall using plastic. 폐플라스틱을 이용한 성형물의 제조방법에 있어서,In the manufacturing method of the molding using waste plastic, 3-90중량%의 폐플라스틱을 160-200℃의 온도범위에서 용융시키고, 여기에 97-10%중량%의 제강슬래그를 첨가한 후 기계적으로 혼합하여 제 1용융혼합물을 얻는 단계;Melting 3-90% by weight of waste plastic at a temperature in the range of 160-200 ° C., adding 97-10% by weight of steelmaking slag, and then mechanically mixing to obtain a first molten mixture; 3-90중량%의 폐플라스틱을 160-200℃의 온도범위에서 용융시키고, 여기에 97-10중량%의 석재분말을 첨가한 후 기계적으로 혼합하여 제 2용융혼합물을 얻는 단계; 및Melting 3-90% by weight of waste plastic at a temperature in the range of 160-200 ° C., adding 97-10% by weight of stone powder and mechanically mixing to obtain a second molten mixture; And 상기 제 1용융혼합물을 금형에 주입하고, 이어 주입된 제 1용융혼합물 위헤 상기 제 2용융혼합물을 주입한 다음 가압성형하는 단계;를 포함하여 이루어짐을 특징으로 하는 폐플라스틱을 이용한 바닥재 및 건축벽재용 성형물의 제조방법.Injecting the first molten mixture into a mold, and then injecting the second molten mixture onto the first molten mixture and then pressing the molten mixture to form a flooring and building wall material using waste plastics. Method of Making Molded Products. 제 4항에 있어서, 상기 가압성형은 5-50㎏/㎠의 압으로 성형함을 특징으로 하는 방법.The method as claimed in claim 4, wherein the pressing is performed at a pressure of 5-50 kg / cm 2.
KR1019970073600A 1997-12-24 1997-12-24 Moldings made of plastic wastes and a method of manufacturing thereof KR100349180B1 (en)

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KR100431873B1 (en) * 2001-06-29 2004-05-17 학교법인 고운학원 Method for recycling mixed waste plastics using inorganic filler
KR20200113906A (en) * 2019-03-27 2020-10-07 홍국선 method for manufacturing water permeable block

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KR101892347B1 (en) 2016-07-12 2018-08-27 강계수 The heating plastic panel manufacturing method and heating plastic panel containing graphene
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KR900002528B1 (en) * 1986-06-18 1990-04-20 주식회사 더코산업 Slag resin concrete composition
KR970011712B1 (en) * 1994-03-22 1997-07-14 이상현 Process for manufacturing material for construction by using of waste polyethylene

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KR100431873B1 (en) * 2001-06-29 2004-05-17 학교법인 고운학원 Method for recycling mixed waste plastics using inorganic filler
KR20200113906A (en) * 2019-03-27 2020-10-07 홍국선 method for manufacturing water permeable block

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