KR20020086327A - Thermoplastic Resin Composition using Recycled Plastics and Industrial Waste, Apparatus for Preparing the Same and Method for Preparing thereof - Google Patents
Thermoplastic Resin Composition using Recycled Plastics and Industrial Waste, Apparatus for Preparing the Same and Method for Preparing thereof Download PDFInfo
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- KR20020086327A KR20020086327A KR1020020047154A KR20020047154A KR20020086327A KR 20020086327 A KR20020086327 A KR 20020086327A KR 1020020047154 A KR1020020047154 A KR 1020020047154A KR 20020047154 A KR20020047154 A KR 20020047154A KR 20020086327 A KR20020086327 A KR 20020086327A
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- Prior art keywords
- screw extruder
- resin composition
- thermoplastic resin
- twin screw
- weight
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- 229920003023 plastic Polymers 0.000 title claims abstract description 39
- 239000004033 plastic Substances 0.000 title claims abstract description 39
- 239000011342 resin composition Substances 0.000 title claims abstract description 30
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 27
- 239000002440 industrial waste Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 37
- 239000002699 waste material Substances 0.000 claims abstract description 48
- 229920005989 resin Polymers 0.000 claims abstract description 40
- 239000011347 resin Substances 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 20
- 239000010881 fly ash Substances 0.000 claims abstract description 18
- -1 polyethylene Polymers 0.000 claims abstract description 16
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003830 anthracite Substances 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 239000002956 ash Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 6
- 239000004743 Polypropylene Substances 0.000 claims abstract description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 6
- 239000002802 bituminous coal Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims abstract description 6
- 239000004571 lime Substances 0.000 claims abstract description 6
- 229920001155 polypropylene Polymers 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims abstract description 5
- 239000004814 polyurethane Substances 0.000 claims abstract description 5
- 239000008188 pellet Substances 0.000 claims description 21
- 238000004898 kneading Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 239000010882 bottom ash Substances 0.000 claims description 5
- 230000000704 physical effect Effects 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 11
- 230000000996 additive effect Effects 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- C08J11/00—Recovery or working-up of waste materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
본 발명은 폐플라스틱 및 산업 폐기물을 이용한 열가소성 수지 조성물과 이를 제조하는 제조장치 및 그 제조방법에 관한 것으로, 더욱 상세하게는 폐플라스틱 중 폴리에틸렌, 폴리프로필렌, 폴리우레탄 등의 수지와 또한 기계적 물성을 높이기 위해 사용되는 충진재 및 첨가제로는 무연탄 비산회와 유연탄 비산회 또는 바닥회, 펄프회, 석회분, 고로 슬래그, 그리고 산화철과 유리 섬유 등을 일정한 비율로 섞은 후, 이축 압출기와 단축 압출기를 혹은 단축 압출기와 이축 압출기를 통하여 용융 혼련하고 펠렛으로 성형하여 만들어진 열가소성 수지 조성물을 제조함으로써 신재 수지와 대비하여 80% 내지 100% 이상의 기계적 물성을 갖도록 하는 폐플라스틱 및 산업 폐기물을 이용한 열가소성 수지 조성물과 이를 제조하는 제조장치 및 그 제조방법에 관한 것이다.The present invention relates to a thermoplastic resin composition using waste plastic and industrial waste, a manufacturing apparatus for manufacturing the same, and a manufacturing method thereof, and more particularly, to resins such as polyethylene, polypropylene, polyurethane, and also mechanical properties of waste plastic. Fillers and additives used for the mixing include anthracite fly ash and bituminous coal fly ash or bottom ash, pulp ash, lime powder, blast furnace slag and iron oxide and glass fiber in a constant ratio, and then twin screw extruder and single screw extruder or single screw extruder and twin screw extruder. Thermoplastic resin composition using waste plastics and industrial wastes having a mechanical property of 80% to 100% or more compared to new resins by manufacturing a thermoplastic resin composition melt-kneaded and molded into pellets through Of manufacturing method to be.
폐플라스틱에 대한 종래의 재활용 방법은 플라스틱의 블렌드 시 폐플라스틱 자체를 충진재 또는 첨가제의 개념으로 사용하는 방법, 즉, 소량의 폐플라스틱을 충진재 또는 첨가제의 역할로 사용하거나 또는 폐플라스틱과 같은 종류의 신재 수지를 사용할 때 일정량의 폐플라스틱을 섞어 사용하는 1 차원적인 재사용 방법으로, 충진재 및 첨가제로 사용하는 방법은 그 역할을 하는 수지의 종류가 제한되어 있어 폐플라스틱 중에서도 극히 일부분만이 사용 가능하고, 또한 사용 가능한 폐플라스틱도 신재 수지와의 상용성 등의 문제가 있어 사용 범위가 축소 및 제한이 되고 있다. 또한 첨가제로 사용이 될 때에는 일반적으로 그 사용량이 소량이며 그 용도 역시 제한되는 단점이 있고, 같은 종류의 수지 사용 시 폐플라스틱을 첨가하는 방법은 가장 큰 목적이 제품의 가격을 떨어뜨리려는 목적이기에 구조재로 사용되는 수지에는 사용하지 못하는 단점이 있으며, 또한 신재 수지의 기계적 물성을 떨어뜨리지 않는 범위에서만 사용이 되므로 그 사용량 역시 소량이고 사용처의 제한이 있다는 단점이 있다.Conventional recycling methods for waste plastics include the use of waste plastics as a filler or additive in the blending of plastics, i.e. using a small amount of waste plastic as a filler or additive, or a new kind of waste plastic. When using resin, it is a one-dimensional reuse method that mixes a certain amount of waste plastic, and the method of using it as a filler and additive has a limited amount of resin that plays a role, and only a fraction of waste plastic can be used. The waste plastics that can be used also have problems such as compatibility with new resins, and thus the use range is reduced and limited. In addition, when used as an additive, the amount of use is generally small, and its use is also limited. The method of adding waste plastic when using the same type of resin is mainly intended to lower the price of the product. The resin is used as a disadvantage that can not be used, and also because it is used only in a range that does not degrade the mechanical properties of the new resin, the amount of use is also a small amount and there is a limitation of use.
또한 다른 방법으로 폐플라스틱을 선별치 않고 용융 혼련을 하되 소각장에서 나오는 쓰레기를 태운 재와 섞어서 펠렛으로 성형한 사례가 있으나, 이는 여러 가지 폐수지 등이 섞여 있어 서로 상용성이 없는 경우가 대부분인 플라스틱의 특성상 그 실효성이 의문스럽고, 만약 사용이 된다 하여도 그 중 상용성이 없는 폐수지가 있는 경우 이 부분이 수지의 결합력을 떨어뜨려 재생 수지로써의 기계적 물성이 사용이 가능한 정도 이상 나오지 않는다는 단점이 있어 널리 사용되지 못하였다. 또한 이런 현상을 줄이기 위해 사용되는 방법이 폐플라스틱과 소각장의 재에다 폴리에틸렌 왁스를 섞어 고정화를 한다는 사례가 있으나, 이 역시 왁스가 폐플라스틱을 서로 화학적으로 연결시켜 준다는 아무런 근거가 없으며 오히려 저 분자량의 왁스가 들어감으로써 기계적 물성이 오히려 떨어지는 단점과 가격만 비싸지는 문제점이 생성되었다.In addition, there is a case where melt kneading is not carried out by sorting waste plastic in another way, but the waste from the incinerator is mixed with burned ash and formed into pellets. Due to its characteristics, its effectiveness is questionable, and even if it is used, if there are waste resins with no compatibility among them, this part has a disadvantage in that the mechanical properties of the recycled resin do not come out to the extent that it can be used. It was not used. In addition, there is a case where the method used to reduce this phenomenon is immobilized by mixing polyethylene wax with ash of waste plastic and incinerator, but there is no evidence that the wax chemically connects the waste plastic with each other. As a result, the disadvantage that the mechanical properties are rather deteriorated and the price is expensive.
따라서 현재까지는 폐플라스틱과 산업폐기물을 이용한 효과적인 재활용 방법에 관한 발명이 부재하였다.Therefore, until now, there has been no invention regarding an effective recycling method using waste plastics and industrial wastes.
이에 본 발명은 앞서 설명한 바와 같은 종래 기술의 문제점을 더욱 효율적으로 해결하기 위하여 제공된 것으로써,Accordingly, the present invention is provided to more efficiently solve the problems of the prior art as described above,
본 발명의 목적은 폐플라스틱 및 산업 폐기물을 이용한 열가소성 수지 조성물을 제공하는 것이다.An object of the present invention is to provide a thermoplastic resin composition using waste plastic and industrial waste.
본 발명의 다른 목적은 상기 열가소성 수지 조성물을 제조하기위한 제조장치를 제공하는 것이다.Another object of the present invention is to provide a manufacturing apparatus for producing the thermoplastic resin composition.
본 발명의 또 다른 목적은 상기 제조장치를 이용한 상기 열가소성 수지 조성물의 제조방법을 제공하는 것이다.Still another object of the present invention is to provide a method for producing the thermoplastic resin composition using the production apparatus.
도 1은 본 발명의 제조 장치에 대한 개략도이다.1 is a schematic view of the manufacturing apparatus of the present invention.
[도면의 주요 부분에 대한 부호의 설명][Description of Symbols for Main Parts of Drawing]
1 : 이축 압출기의 투입구100 : 이축 압출기1: Input port of twin screw extruder 100: Twin screw extruder
2 : 이축 압출기의 분출구200 : 단축 압출기2: spout of twin screw extruder 200: single screw extruder
3 : 단축 압출기의 투입구3: inlet of single screw extruder
4 : 단축 압출기의 분출구4: blowout port of single screw extruder
5 : 냉각조5: cooling tank
6 : 펠렛타이져6: pelletizer
7 : 핫카팅기7: Hot Cart Machine
상기한 목적을 달성하기 위하여, 본 발명에 따른 열가소성 수지 조성물은 폐플라스틱 50 중량부 내지 99중량부 및 충진제로서 산업폐기물 1중량부 내지 50 중량부를 혼합하여 제조된다.In order to achieve the above object, the thermoplastic resin composition according to the present invention is prepared by mixing 50 parts by weight to 99 parts by weight of waste plastic and 1 part by weight to 50 parts by weight of industrial waste as a filler.
상기 폐플라스틱은 폴리에틸렌, 폴리프로필렌 및 폴리우레탄으로 이루어진 군으로부터 선택되어지는 어느 하나의 군이다.The waste plastic is any one group selected from the group consisting of polyethylene, polypropylene and polyurethane.
상기 산업폐기물은 무연탄 비산회, 유연탄 비산회, 바닥회, 펄프회, 석회분, 고로 슬래그, 산화철, 유리 섬유 및 이들의 혼합물 로 이루어지는 군으로부터 선택되어지는 어느 하나의 군이다.The industrial waste is any one selected from the group consisting of anthracite fly ash, bituminous coal fly ash, bottom ash, pulp ash, lime powder, blast furnace slag, iron oxide, glass fiber and mixtures thereof.
본 발명에 따른 열가소성 수지 조성물 제조장치는 상기 폐플라스틱과 상기 충진재의 혼합물이 투입되는 이축 압출기의 투입구(1) 및 이를 분출하는 분출구(2)를 포함하여 이루어지는 이축 압출기(100); 이축 압출기의 분출구를 통해 나오는 혼합물이 투입되는 단축 압출기의 투입구(3) 및 이를 분출하는 분출구(4)를 포함하여 이루어지는 단축 압출기(200); 냉각조(5)와 펠렛타이져(6) 또는 핫카팅기(7)를 포함하여 이루어진다.The apparatus for manufacturing a thermoplastic resin composition according to the present invention includes a twin screw extruder 100 including an inlet 1 of a twin screw extruder into which a mixture of the waste plastic and the filler is injected, and a jet port 2 for ejecting the same; A single screw extruder 200 comprising an inlet 3 of a single screw extruder into which the mixture coming out of the twin screw extruder is injected, and a jet 4 for ejecting the same; It comprises a cooling bath (5) and a pelletizer (6) or a hot cart (7).
상기 단축 압출기는 이축압출기의 전반부에 설치될 수 있으며, 상기 이축 압출기는 단축압출기의 대하여 전반부에 설치될 수 있다.The single screw extruder may be installed at the first half of the twin screw extruder, and the twin screw extruder may be installed at the first half of the single screw extruder.
상기 제조장치가 기존의 제품 생산라인에 포함되어 이루어질 수 있다.The manufacturing apparatus may be included in an existing product production line.
본 발명에 따른 열가소성 수지 조성물을 제조하는 제조방법은 (1) 폐플라스틱 50 중량부 내지 99 중량부 및 산업폐기물 1 중량부 내지 50 중량부를 혼합하는 단계, (2) 혼합 후 이축 압출기의 투입구로 투입단계, (3) 온도범위 180℃ 내지 250℃의 이축 압출기 내에서 1차 용융 혼련 단계, (4) 1차 용융 혼련 후 이축 압출기의 분출구를 통해 단축 압출기의 투입구로 이송하는 단계, (5) 단축 압출기내에서의 2차 용융 혼련단계 및 (6) 2차 용융 혼련 후 단축 압출기의 분출구를 통해 펠렛으로 성형하는 단계로 이루어진다.In the manufacturing method of preparing the thermoplastic resin composition according to the present invention, (1) mixing 50 parts by weight to 99 parts by weight of waste plastic and 1 part by weight to 50 parts by weight of industrial waste, (2) mixing and inputting the inlet of the twin screw extruder (3) primary melt kneading in a twin screw extruder in a temperature range of 180 ° C. to 250 ° C., (4) transfer to the inlet of a single screw extruder through a jet of the twin screw extruder after primary melt kneading, and (5) shortening The secondary melt kneading step in the extruder and (6) after the secondary melt kneading, forming into pellets through the outlet of the single screw extruder.
상기 단축 압출기를 상기 이축 압출기에 대하여 선 공정으로 투입할 수 있으며, 또한 상기 이축 압출기는 상기 단축 압출기에 대하여 선 공정으로 투입할 수 있다.The single screw extruder may be introduced into a linear process with respect to the twin screw extruder, and the twin screw extruder may be introduced into a linear process with respect to the single screw extruder.
상기 단축 압출기 또는 상기 이축 압출기의 분출구를 통해 나오는 용융 혼련된 수지는 상기 펠렛으로 성형하는 단계에서 냉각조를 거친 후 펠렛으로 성형되거나 상기 단축 압출기 또는 상기 이축 압출기의 분출구를 통해 나오는 용융 혼련된수지를 상기 펠렛으로 성형하는 단계에서 냉각조를 거치기 전 뜨거운 상태에서 펠렛으로 성형될 수 있다.The melt-kneaded resin coming out of the blower of the single screw extruder or the twin screw extruder may be formed into pellets after passing through a cooling tank in the step of forming into pellets or melt kneaded resin coming out of the blower of the single screw extruder or the twin screw extruder. In the step of forming the pellets may be molded into pellets in a hot state before passing through the cooling bath.
이하 본 발명에 대하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
본 발명은 폐플라스틱과 충진재 또는 첨가제를 용융 혼련하여 만드는 열가소성 재활용 수지 조성물과 그 공정에 관한 것으로, 사용 가능한 폐플라스틱은 산업 현장에서 발생하는 여러 가지 폐플라스틱 중 폴리에틸렌, 폴리프로필렌, 폴리우레탄 등의 수지이고 또한 같이 첨가하여 사용되는 산업 폐기물로써의 충진재 또는 첨가제는 무연탄과 유연탄의 소각 후 발생하는 소각 재 중 입자가 곱고 가벼워 날아다니는 무연탄 비산회(Anthracite fly ash)와 유연탄 비산회(Bituminous fly ash), 또는 날아가지 않고 바닥에 남아있는 바닥회(Bottom ash), 종이의 가공 시 대량으로 발생하여 소각 처리하는 종이 소각재 중 펄프 성분이 소각된 펄프회(Pulp ash), 석회암을 석회석 판재로 만드는 공장에서 대량으로 발생하는 석회분(Lime powder), 철강의 제련 시 불순물을 제거하기 위하여 투입되고 물 속에서 다시 재 침전되는 고로 슬래그(Slag), 그리고 여러 가지 경로를 통해 발생하는 산화철, 유리 섬유 등이다. 본 발명에서는 상기의 폐플라스틱과 산업 폐기물을 일정한 비율로 섞은 후 이축 압출기(100)의 투입구(1)를 통하여 이를 투입하고, 이축압출기의 분출구(2)를 통해 다시 단축 압출기(200)의 투입구(3)로 투입을 하고, 단축 압출기의 분출구(4)를 통해 용융 혼련된 수지 조성물이 토출될 때 이를 펠렛타이져(6)를 이용하여 펠렛으로 성형을 열가소성 수지 조성물과 그 압출 공정을 확립하는 발명이다. 펠렛으로 성형하는 방법은 두 가지가 있는데, 첫째는 토출되는 수지 조성물을냉각조(5)를 거쳐 냉각시킨 후 펠렛타이져(6)를 이용하여 펠렛으로 성형하는 방법이고 둘째는 토출되는 수지 조성물을 냉각을 거치지 않고 뜨거운 상태에서 핫카딩기(Hot cutting)(7)를 이용하여 펠렛으로 성형하는 방법이다.The present invention relates to a thermoplastic recycled resin composition made by melt kneading waste plastics and fillers or additives and to a process thereof. The waste plastics that can be used are resins such as polyethylene, polypropylene, polyurethane, etc. In addition, the fillers or additives used as industrial wastes are anthracite fly ash and bituminous fly ash, which fly finely and lightly in the incineration ash generated after incineration of anthracite coal and bituminous coal, or flylight fly ash. Bottom ash remaining on the floor without going out, pulp ash in which the pulp component is incinerated among the incineration paper incineration that occurs in large quantities during processing of paper, and in large quantities in a factory that makes limestone as a limestone plate Lime powder to remove impurities during smelting of steel W is added and the blast-furnace slag (Slag) is re-precipitated again in water, and iron oxide generated through a number of routes, such as glass fiber. In the present invention, after mixing the waste plastic and the industrial waste at a constant ratio, it is introduced through the inlet (1) of the twin screw extruder 100, and again through the outlet (2) of the twin screw extruder (inlet of the single screw extruder 200) 3) Invention to form a thermoplastic resin composition and its extrusion process by injection into a pellet using the pelletizer 6 when the resin composition melted and kneaded through the injection port 4 of the single screw extruder is discharged to be. There are two methods for molding into pellets. First, the resin composition to be discharged is cooled through a cooling tank (5) and then molded into pellets using the pelletizer (6). It is a method of molding into pellets by using a hot cutting machine (Hot cutting) (7) in a hot state without cooling.
이상의 방법으로 재생산된 열가소성 재생 수지는 기존의 폐플라스틱을 이용한 재생 수지에서는 찾아 볼 수 없었던 고강도의 소재용 수지로 값싸고 또한 환경 친화적인 물질로 거듭나 다시 제품으로 손쉽게 재활용함을 목적으로 한다.The thermoplastic regenerated resin reproduced by the above method is a high-strength material resin which was not found in the conventional recycled resin using waste plastics, and is intended to be recycled back into a product easily as a cheap and environmentally friendly material.
본 발명의 공정을 살펴보면, 폐플라스틱과 산업 폐기물을 일정한 비율로 섞은 후, 폐플라스틱이 녹아서 산업폐기물의 분배 및 분산 혼합이 잘 이루어지도록 이축 압출기의 투입구를 통하여 이를 투입하고 용융 혼련이 된 후 이축압출기의 분출구를 통해 다시 단축 압출기의 투입구로 투입을 하고, 단축 압출기에서 용융 혼련이 일어난 후 단축 압출기의 분출구를 통해 용융 혼련된 수지가 토출될 때 이를 펠렛타이져를 이용하여 펠렛으로 성형을 하는 공정으로 이루어져 있다. 각각의 혼련 공정 중 이축압출기에서 단축 압출기로 투입을 할 때 용융 혼련된 수지는 반드시 대기 중에 노출이 되도록 하는데, 그 이유는 용융 혼련된 수지 중 열에 약해 산화가 된 물질과 수지 내부에 갇혀있는 수분 및 수분에 의해 발생된 기포를 제거하기 위함이고 이를 단축 압출기로 다시 한번 용융 혼련을 하는 이유는 충진재의 분산도를 높이고 사용이 용이한 펠렛 형태로 만들어내기 위함이다.Looking at the process of the present invention, after mixing the waste plastic and industrial waste at a constant ratio, the waste plastic is melted by the input through the inlet of the twin screw extruder so that the distribution and dispersion of the industrial waste is made well and melt kneading after the twin screw extruder Injecting into the inlet of the single screw extruder through the outlet of the single-screw extruder, and melt kneading in the single screw extruder after the melt-kneaded resin is discharged through the spout of the single screw extruder to form into pellets using a pelletizer consist of. During each kneading process, the melt-kneaded resin must be exposed to the atmosphere when it is fed from the twin screw extruder to the single screw extruder, because the melt-kneaded resin is weak to heat, oxidized material, and water trapped inside the resin. The reason for removing the air bubbles caused by water and melt kneading with a single screw extruder is to increase the dispersibility of the filler and make it into an easy-to-use pellet form.
이상의 공정은 이축 압출기 대신에 단축 압출기를 먼저 위치하고 폐플라스틱과 충진재를 넣어 분산 및 분배 혼합을 한 후 이 용융 혼련된 수지를 이축 압출기의 투입구를 통하여 투입을 하는 방법도 가능하겠다. 또한 이 공정 자체를 별도로하지 않고 제품을 생산하는 공정의 생산라인의 처음 부분에 부착을 하여 원료의 생산 가격을 낮추는 방법도 가능하다 하겠다.In the above process, instead of the twin screw extruder, the single screw extruder is first placed, and then the waste plastic and the filler are added to disperse and distribute the mixture, and then the melt-kneaded resin can be introduced through the inlet of the twin screw extruder. In addition, it is possible to lower the production price of raw materials by attaching to the beginning of the production line of the process for producing products without separate process itself.
이하에서는 전술한 구성의 실시 예를 첨부시킨 도면과 함께 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings an embodiment of the above configuration will be described in detail.
[실시예 1]Example 1
포장용 폴리에틸렌 폐수지 60 중량부를 이축 압출기의 투입구에 넣었다. 이때 무연탄 비산회 40 중량부를 이축 압출기의 투입구에 같이 투입을 하였다. 이때 압출기의 온도는 투입구로부터 압출기의 분출구까지 180℃에서 250℃까지 온도 구배를 갖도록 하였다. 이축 압출기의 분출구 부분에서 폐수지와 비산회의 용융 혼련 수지는 대기 중에 노출이 된 상태로 단축 압출기의 투입구로 투입이 된다. 이 과정을 거치는 동안에 폐수지와 충진재 또는 첨가제의 용융 혼련된 수지 중 열에 약해 산화가 된 물질과 폐수지 및 비산회 등에 함유되어 있는 수분 및 수분에 의해 생성된 기포 등은 대기 중으로 빠져나가게 된다. 용융 혼련된 수지가 투입이 되는 단축 압출기의 온도 구배도 이축 압출기와 유사하게 180℃에서 250℃까지 유지시켰다. 단축 압출기에서 다시 용융 혼련이 되고 충진재의 분배 및 분산 혼합이 된 용융 혼련된 수지는 단축 압출기의 분출구를 통해 나올 때 이를 냉각조를 거쳐 냉각한 후 펠렛타이저를 통해 펠렛으로 성형을 하거나 단축 압출기의 분출구 부분에서 냉각조를 거치지 않고 뜨거운 상태에서 펠렛을 성형하는 핫 카팅 공정을 거쳐 펠렛으로 성형하였다.60 parts by weight of packaging polyethylene waste resin was placed in the inlet of a twin screw extruder. At this time, 40 parts by weight of anthracite fly ash was added to the inlet of the twin screw extruder. At this time, the temperature of the extruder was to have a temperature gradient from 180 ° C to 250 ° C from the inlet to the outlet of the extruder. At the outlet of the twin screw extruder, the waste resin and fly ash melt kneaded resin are introduced into the single screw extruder in an exposed state to the atmosphere. During this process, the heat-reduced material of the resin melt-kneaded with the waste resin and the filler or the additive, which is vulnerable to heat, and the moisture generated by the moisture contained in the waste resin and fly ash, etc., are released into the atmosphere. The temperature gradient of the single screw extruder into which the melt-kneaded resin is fed was also maintained from 180 ° C. to 250 ° C. similarly to the twin screw extruder. The melt-kneaded resin, which is kneaded again in the single screw extruder and distributed and dispersedly mixed with the filler, is cooled through a cooling tank when it comes out through the outlet of the single screw extruder, and then molded into pellets through a pelletizer or It was molded into pellets through a hot-carting process of molding pellets in a hot state without passing through a cooling bath at the jet port portion.
[실시예 2]Example 2
실시예 1에서 포장용 폴리에틸렌 폐수지 60 중량부와 무연탄 비산회 10 중량부, 펄프회 30 중량부를 이축 압출기의 투입구에 넣고 그 외의 공정을 실시예 1과 같이 하였다.In Example 1, 60 parts by weight of packaging polyethylene waste resin, 10 parts by weight of anthracite fly ash, and 30 parts by weight of pulp ash were placed in an inlet of a twin screw extruder, and other processes were carried out as in Example 1.
[실시예 3]Example 3
실시예 1에서 포장용 폴리에틸렌 폐수지 60 중량부와 무연탄 비산회 30 중량부, 유리섬유 10 중량부를 이축 압출기의 투입구에 넣고 그 외의 공정은 실시예 1과 같이 하였다.In Example 1, 60 parts by weight of packaging polyethylene waste resin, 30 parts by weight of anthracite fly ash, and 10 parts by weight of glass fiber were placed in an inlet of a twin screw extruder, and the other steps were performed as in Example 1.
[실시예 4]Example 4
실시예 1에서 포장용 폴리에틸렌 폐수지 60 중량부와 무연탄 비산회 30 중량부에 산화철 10 중량부를 넣고 그 외의 공정은 실시예 1과 같이 하였다.In Example 1, 10 parts by weight of iron oxide was added to 60 parts by weight of the packaging polyethylene waste resin and 30 parts by weight of anthracite fly ash, and the other steps were performed as in Example 1.
이상의 실시예에서 얻어진 폐폴리에틸렌 수지와 충진재 및 첨가제의 용융 혼련된 수지 조성물의 충격 강도를 측정하였고 그 결과를 하기 표 1에 나타내었다.The impact strength of the melt-kneaded resin composition of the waste polyethylene resin, the filler, and the additive obtained in the above examples was measured, and the results are shown in Table 1 below.
한편 본 발명은 상기에 설명된 실시예 외에도 폐폴리에틸렌 수지를 대신하여 폴리프로필렌 수지와 폴리우레탄 수지나 충진재로 유연탄 비산회, 바닥회, 석회분, 고로 슬래그 등을 사용할 수 있는 것으로 충진재를 하나만 사용하는 것이 아니고 여러 조합으로 사용 할 수 있다.Meanwhile, the present invention can use bituminous coal fly ash, bottom ash, lime powder, blast furnace slag and the like as a polypropylene resin and a polyurethane resin or a filler in place of the waste polyethylene resin described above, instead of using only one filler. It can be used in several combinations.
또한 본 발명은 상기에 설명된 실시예의 공정 외에도 이축 압출기와 단축 압출기의 배열 순서를 거꾸로 하여도 사용 할 수 있고, 또한 이 공정 전체를 제품 생산라인에 일체형으로 결합하여 사용 할 수도 있으며, 이 경우 펠렛을 만드는 공정이 생략되고 바로 수지를 성형기로 도입을 하게되므로 생산 시간을 줄이고 생산 가격을 낮출 수 있는 장점이 있다.In addition, the present invention can be used in the reverse order of the arrangement of the twin-screw extruder and single-screw extruder in addition to the process of the embodiment described above, and also the whole process can be used integrally combined with the product production line, in this case pellets Since the process of making is omitted and the resin is introduced into the molding machine, there is an advantage of reducing the production time and lowering the production price.
한편, 상기와 같은 폐플라스틱과 충진재 및 첨가제를 상기의 공정으로 가공하여 얻어진 재활용 수지는 기존의 재활용 수지처럼 일부분만 사용을 하는 것이 아니고, 일정 이상의 기계적 강도를 보임으로써 산업용 구조재로써 재활용이 가능하다. 그 가능한 분야는 통신용 케이블 보호관 및 덮개, 오ㆍ폐수용 구조용 오ㆍ배수관, 조립식 배수로, 농업용 배수관, 우수관, 정화조 등이고, 또한 제품을 생산하는 방식으로 살펴보면, 압출, 사출, 중공 성형, 압축가공 등으로 생산하는 제품에 사용이 가능하다.On the other hand, the recycled resin obtained by processing the above-mentioned waste plastics and fillers and additives in the above process is not used only part of the conventional recycled resin, it can be recycled as an industrial structural material by showing a certain mechanical strength or more. Possible fields include telecommunication cable protection pipes and covers, wastewater and wastewater drainage pipes, prefabricated drainage channels, agricultural drainage pipes, storm water pipes, septic tanks, etc., and also in the way of producing products, such as extrusion, injection, blow molding, compression processing, etc. It can be used to produce products.
본 발명은 환경을 해치는 쓰레기로써의 폐플라스틱과 산업 폐기물이던 충진재와 첨가제를 원료로 이용하여 일정 이상의 기계적 물성을 갖는 산업 구조재로 적합한 열가소성 수지로 재생산을 하므로 폐플라스틱에 의한 환경 오염을 방지하고 환경친화적인 특성을 가지고 있으며, 폐자원을 사용하므로 생산비용을 절감하여 경쟁력을 높일 수 있는 등의 효과를 지니는 발명이다.The present invention uses recycled plastics and industrial wastes as fillers and additives as raw materials to regenerate them into thermoplastic resins suitable for industrial structural materials with certain mechanical properties. Phosphorus is an invention that has the effect of increasing the competitiveness by reducing the production cost because it has the characteristics of using waste resources.
상기에서 본 발명은 기재된 구체예를 중심으로 상세히 설명되었지만, 본 발명의 범주 및 기술사상 범위 내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속하는 것도 당연한 것이다.While the invention has been described in detail above with reference to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the scope and spirit of the invention, and such modifications and variations fall within the scope of the appended claims. It is also natural.
Claims (12)
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| US9752015B2 (en) | 2014-08-05 | 2017-09-05 | Boral Ip Holdings (Australia) Pty Limited | Filled polymeric composites including short length fibers |
| US9988512B2 (en) | 2015-01-22 | 2018-06-05 | Boral Ip Holdings (Australia) Pty Limited | Highly filled polyurethane composites |
| US10030126B2 (en) | 2015-06-05 | 2018-07-24 | Boral Ip Holdings (Australia) Pty Limited | Filled polyurethane composites with lightweight fillers |
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