WO2001062464A1 - Appareil permettant de melanger et de mouler differents types de plastiques - Google Patents

Appareil permettant de melanger et de mouler differents types de plastiques Download PDF

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Publication number
WO2001062464A1
WO2001062464A1 PCT/JP2001/001273 JP0101273W WO0162464A1 WO 2001062464 A1 WO2001062464 A1 WO 2001062464A1 JP 0101273 W JP0101273 W JP 0101273W WO 0162464 A1 WO0162464 A1 WO 0162464A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixing
plastic
molding
hot
fiber
Prior art date
Application number
PCT/JP2001/001273
Other languages
English (en)
Japanese (ja)
Inventor
Masao Konishi
Original Assignee
Masao Konishi
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 Masao Konishi filed Critical Masao Konishi
Priority to AU34110/01A priority Critical patent/AU3411001A/en
Publication of WO2001062464A1 publication Critical patent/WO2001062464A1/fr
Priority to JP2002045130A priority patent/JP4169989B2/ja

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Classifications

    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/90—Fillers or reinforcements, e.g. fibres
    • 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
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0042—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/228—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length using endless belts feeding the material between non-rotating pressure members, e.g. vibrating pressure members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material
    • 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

Definitions

  • the present invention relates to a method of mixing a plastic and a cellulose component to be used for packaging materials, distribution materials, cushioning materials, interior composite materials such as automobiles or furniture, building civil engineering materials, and the like. It relates to a mixing molding device for obtaining a composite plastic plate.
  • Background Art When an extruder or a twin-screw kneader is used to melt-mold a plastic waste material such as an automobile interior material to obtain a remolded product, the remolded product may be exfoliated or thermally distorted. However, a stable molded product could not be obtained. For this reason, it was thought that the composite of plastic materials was the cause of thermal strain. Therefore, the separation and sorting of plastic materials was regarded as a minimum item to be observed, and it was not possible to spread recycling in plastics where sorting of materials was difficult.
  • Plastic waste exists in a mixed state of various types such as PVC (polyvinyl chloride), PE (polyethylene), and PET (polyethylene phthalate).
  • PVC polyvinyl chloride
  • PE polyethylene
  • PET polyethylene phthalate
  • PVC polyvinyl chloride
  • conventional recycling methods can identify plastic materials once, then melt only carefully selected materials and apply them to molding processing
  • PVC is used as a matrix and recycled from a mixed PVC / PE resin that requires the incorporation of a different resin, PE.
  • the boundary surface of PVCZPE was peeled or cracked, and the value and physical strength of the product could not be obtained from the recycled PVC / PE product.
  • melt molding when melt molding is performed on a plastic material in which various types of fibers are mixed for the purpose of effective use of resources, it is required to suppress the cohesion energy of the polymer which causes peeling or cracks generated in the regenerated product. Thing, stable It provides plastic mixing and molding equipment for reclaimed products. Disclosure of the Invention When melt-molding is performed in a mixed state of incompatible plastics, a series of processes such as melting, flow, shaping, and cooling are performed. During the process, the cohesive energy of the polymer could not be suppressed, and only the compacts that had changed into a sea-island structure could be expected.
  • the polymer is once brought into a softened and fluidized state, each polymer is determined to have a molecular orientation into a chain polymer, and is subjected to a physical constitution into a plastic fiber hair.
  • a polymer composite in which different types of plastic materials are entangled in a macroscopic manner is physically determined.
  • the chain polymer is shrunk by using a quenching effect against the cohesive displacement of the polymer, and solidified into a solidified body for the first time.
  • the melt is separated from the polymer melt and agglomeration displacement during a series of melting processes such as flow, shaping, and cooling.
  • it is possible to reduce the cohesive energy of the polymer by physically subdividing each process, and a series of plastic mixing to form a stable regenerated product
  • PVC polyvinyl chloride
  • PE polyethylene
  • the plastic mixing and molding apparatus is capable of melting, flowing, and shaping.
  • FIG. 1 is a process diagram in a heteroplastic mixing apparatus according to the present invention
  • FIG. 2 is an elevational view of a portion including a material charging section to a convection stirring tank of the heterogeneous plastic mixing and molding apparatus according to the present invention
  • Fig. 3 is an elevational view of a portion including a preliminary screw of a heterogeneous plastic mixing molding apparatus according to the present invention, from a pre-screw to a cooling plate;
  • Fig. 4 is a schematic diagram of a three-dimensional network structure intertwined with one macroscopic; and Fig. 5 is a physical strength comparison table.
  • BEST MODE FOR CARRYING OUT THE INVENTION A plastic mixing and molding apparatus is a method for temporarily converting plastic into fibrous hair. In this process, natural plant fiber (cellulose) and plastic fiber hair are integrated into a single body by mixing and stirring to obtain a composite, followed by a preheating step of removing water and softening the composite, and compressing the softened composite. The heat and pressure process required for melting, the cooling process required for coagulation and solidification of the melted molded body, and the plastic mixing and molding equipment has separate processes as described above, thus suppressing the coagulation energy of the polymer.
  • FIG. 2 shows a portion from the raw material charging section to the convection stirring tank 19, and FIG. 3 to cooling plates 32 and 33 are shown.
  • the plastic raw material is indicated by reference numeral 1.
  • the plastic material that can be treated according to the present invention has a melting point of plastic of 320. As long as it is a thermoplastic resin within C, it is not necessary to carefully select raw materials in particular, and it is possible to mix and process composite materials.
  • the heater 7, the rotating plate 8, and the rotating plate drive motor 9 constitute a rotary melt spinning device.
  • a composite molded body made of PVC / PE is finely pulverized to an angle of about 3 to about 10 and then simultaneously put into a material input hopper 3.
  • the raw material stored in the tub 3 is quantitatively supplied to the rotating plate 8 by the rotation of the screw shaft of the material supply cylinder equipped with the supply motor 4, but is installed on the outer periphery of the cylinder.
  • a conventional melt extruder or twin-screw kneader On the other hand, the kneading and dispersing action by the mechanical screw is forcibly applied. For this reason, in the forced melting in a state where different types such as PVCZPE are mixed, the effect of the heat history causes the mixed melt of different resins to lead to the degradation phenomenon of the low molecular weight polymer.
  • the rotational melt spinning process according to the present invention it becomes possible to flow the plastic from a plasticized state according to the softening and melting temperature of each polymer to the outer peripheral inner wall surface of the rotating plate 8, Even in the mixed state of different resins, plastic fiber hair having a pulling property can be discharged.
  • a thin discharge port 10 for applying pressure to the outer peripheral wall surface of the rotating plate 8 is provided, and the thin discharge port 10 for applying pressure to the fluidized plastic is made to be a currency. Then, it is turned into a single-fiber hair whose molecular orientation is determined into a chain polymer, and the next step is carried out by ejecting about 0.01 to 2.0 strokes of plastic fiber hair.
  • a natural plant fiber raw material is indicated by a reference numeral 2. Street trees, plants, wood chips, waste paper, etc. are composed of natural plant fibrous materials (cellulose), and these fibrous materials are defibrated by a fibrillator or a refiner to produce plant fiber wool containing cellulose as a main component. Can be obtained. It is desirable that the plant fiber hairs defibrated by a mechanical method have a fiber diameter of about 0.01 to 1.0 country and a fiber length of about 5 to 40 ran. There is no need to determine the physical property values in detail, and cellulosic fiber hairs having a cell opening as a main component and a water content of 10% or less are supplied to the convection stirring process. Quantitative supply process.
  • each discharge amount is arbitrarily adjusted by rotating the screws 14 and 17, and the convection stirring process is the next process.
  • the long fibers of the plastic discharged from the rotary melt spinning device are shortened by the plastic fiber cutting blade 11, and then the fixed amount of plastic consisting of the hopper 12 and the screw 14 with the driving motor 13 is supplied.
  • the fixed amount is supplied to the next process by the equipment.
  • the raw material for natural vegetable fiber is a natural fiber constant feeder consisting of a screw 17 with a hopper 15 and a drive motor 16. Is supplied to the next step.
  • plastic fiber wool and plant fiber wool are tentatively mixed at a ratio of 50:50.
  • the respective compounding ratios are adjusted by a screw. Adjustment can be arbitrarily performed by controlling the rotation of the conveyor, and if necessary, additional chemicals such as curing agents, foaming agents, and coloring agents will be added. Convection stirring process
  • the convection agitation tank 19 has an inverted bell-shaped cylindrical shape. At the bottom, large rotating blades 20 serving as a generation source for agitation work are installed, and are driven by a drive motor 21. A swirling convection is generated from the bottom surface of the stirring tank 19 by the rotation of the rotary wing 20, and flows as an ascending airflow along the inner peripheral wall surface of the stirring tank 19, and at a certain rate. After soaring to the height, it will be sucked by the downward suction action near the center of the stirring tank 19.
  • the plastic Before the hot pressing process, the plastic is sufficiently softened, the compression heat applied during the hot pressing process is used more effectively, and the three-dimensional network structure composed of different types is led to an integrated body. For this purpose, it is necessary to soften the plastic fiber hairs and remove moisture from the cellulose in the preheating step.
  • a heater 22 made of a heat medium or the like is attached to the outer peripheral wall of the preheating furnace 24, and heat is radiated from the heater 22 so that a constant temperature is always maintained inside the preheating furnace 24.
  • the amount of water contained in the cellulose is preferably kept within 10%, and the plastic fiber hair is preferably kept in a softened state before the molten state.
  • the three-dimensional network structure sufficiently softened or dried in the preheating furnace 24 is quantitatively transferred by the rotation of the supply screw 23. Quantitative supply is possible by the rotation of the supply screw 23. At this time, the heating fiber 22 installed on the outer periphery of the preheating furnace 24 softens the plastic fiber hair and moisture of the plant fiber hair (cellulose). By performing the removal, it is possible to substitute the pre-heating step accompanying the previous step by the supply screw 23.
  • the dried raw material can be stably supplied by the supply screw 23.
  • the discharge sheet 23 of the supply screw 23 always has a peel sheet 27 or a mold (not shown). It is installed, and after applying a fixed amount on the peeling sheet 27, the scraping blades 25 rotate and move to reduce the bulk of the raw material in order to adjust the uniform bulk of the raw material. After alignment, the release sheet 27 is moved to supply the raw materials to the hot pressing process. Hot pressing process
  • hot plates 28 and 29 are provided below and hot pressed to the three-dimensional mesh structure sandwiched between the peeling sheets 26 and 27.
  • the upper and lower heat plates 28 and 29 are supplied with a heat source from an external heat medium, are provided with a heat plate that always secures a fixed amount of heat source, and perform compression operation several times.
  • a reciprocating cylinder 30 and a hot plate compression mechanism 31 are provided.
  • Figure Reference numeral 3 indicates a state in which the hot plates 28 and 29 are separated from each other. Heat release and compression from hot plates 28 and 29 ⁇ By repeating opening, degassing and releasing moisture and gas contained in raw materials and melting plastic.
  • Plastic fiber bristles of different types are fused together with the same melting point plastic fiber bristles by the combined use of compression heat and frictional heat due to the compression action of hot plates 28 and 29, and the different resin fiber bristles are entangled with each other and measured for shrinkage.
  • the formation is possible to arrange the formation as an arbitrary welded body that absorbs the aggregation displacement (see Fig. 4).
  • the upper and lower cooling plates 32 and 33 are quickly pressed down, and the heat radiation of the molded body is determined by the cooling plates 32 and 33 This makes it possible to stop the cohesive displacement of the chain polymer.
  • the cooling plates 32 and 33 also have a reciprocating cylinder 34 and a cooling plate compression mechanism 35.
  • Fig. 3 shows that the cooling plates 32 and 33 are pressed in opposite directions.
  • the composite fibrous bodies welded by the hot plates 28 and 29 move between the steps while being peeled off from the separation sheets 26 and 27 (the upper and lower sides).
  • Fig. 5 shows the results of an experiment comparing the physical strength, such as bending and tensile strength, of the sample board according to the present invention and the conventional sample board obtained by melt-kneading. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne un appareil permettant de mélanger et de mouler différents types de plastiques. Cet appareil est caractérisé en ce qu'il comprend une partie destinée à transformer un plastique en fibres trichoïdes, une partie destinée à mélanger par agitation la fibre trichoïde plastique obtenue avec une fibre végétale naturelle (cellulose) afin d'obtenir une pièce et de préparer un composite, une partie destinée à préchauffer ce composite afin d'en éliminer l'humidité et de le ramollir, une partie destinée à comprimer thermiquement le composite ramolli afin de préparer un composite fondu moulé, enfin une partie destinée à refroidir le composite fondu moulé afin de le coaguler et de le solidifier. Cet appareil, qui comporte les parties séparées mentionnées ci-dessus, permet de supprimer et de réguler l'énergie de coagulation de polymères et ainsi d'obtenir des produits recyclés voulus à partir d'une variété de déchets plastiques constitués de différents types de plastiques.
PCT/JP2001/001273 2000-02-22 2001-02-21 Appareil permettant de melanger et de mouler differents types de plastiques WO2001062464A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU34110/01A AU3411001A (en) 2000-02-22 2001-02-21 Apparatus for mixing and molding different types of plastics
JP2002045130A JP4169989B2 (ja) 2001-02-21 2002-02-21 異種プラスチック混合成形方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000044838 2000-02-22
JP2000-44838 2000-02-22

Publications (1)

Publication Number Publication Date
WO2001062464A1 true WO2001062464A1 (fr) 2001-08-30

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PCT/JP2001/001273 WO2001062464A1 (fr) 2000-02-22 2001-02-21 Appareil permettant de melanger et de mouler differents types de plastiques

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AU (1) AU3411001A (fr)
WO (1) WO2001062464A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3332934A1 (fr) * 2016-12-06 2018-06-13 Cetim-Cermat Procédé et installation de fabrication d'un matériau thermoplastique.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852387A (en) * 1970-04-24 1974-12-03 James W White Double belt plastic sheet forming and take-off method
JPS4947271B1 (fr) * 1970-04-18 1974-12-14
US4790736A (en) * 1984-07-20 1988-12-13 John E. Benoit Apparatus for centrifugal fiber spinning with pressure extrusion
US5009586A (en) * 1988-12-14 1991-04-23 Pallmann Maschinenfabrik Gmbh & Co. Kg Agglomerating apparatus for the continuous regranulation of thermoplastic wastes
JPH07329060A (ja) * 1994-06-09 1995-12-19 Toshiba Mach Co Ltd 熱可塑性樹脂発泡体の処理方法および装置ならびに綿状物
JPH10278698A (ja) * 1997-04-07 1998-10-20 Nakagawa Sangyo Kk 自動車用内装材とその製造方法
WO1999042230A1 (fr) * 1998-02-23 1999-08-26 Masao Konishi Procede de production d'article moule en matieres plastiques fondues melangees de differents types
JP2001073222A (ja) * 1999-08-27 2001-03-21 Casle Kk 繊維状物製造方法及び装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947271B1 (fr) * 1970-04-18 1974-12-14
US3852387A (en) * 1970-04-24 1974-12-03 James W White Double belt plastic sheet forming and take-off method
US4790736A (en) * 1984-07-20 1988-12-13 John E. Benoit Apparatus for centrifugal fiber spinning with pressure extrusion
US5009586A (en) * 1988-12-14 1991-04-23 Pallmann Maschinenfabrik Gmbh & Co. Kg Agglomerating apparatus for the continuous regranulation of thermoplastic wastes
JPH07329060A (ja) * 1994-06-09 1995-12-19 Toshiba Mach Co Ltd 熱可塑性樹脂発泡体の処理方法および装置ならびに綿状物
JPH10278698A (ja) * 1997-04-07 1998-10-20 Nakagawa Sangyo Kk 自動車用内装材とその製造方法
WO1999042230A1 (fr) * 1998-02-23 1999-08-26 Masao Konishi Procede de production d'article moule en matieres plastiques fondues melangees de differents types
JP2001073222A (ja) * 1999-08-27 2001-03-21 Casle Kk 繊維状物製造方法及び装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3332934A1 (fr) * 2016-12-06 2018-06-13 Cetim-Cermat Procédé et installation de fabrication d'un matériau thermoplastique.
WO2018104613A1 (fr) * 2016-12-06 2018-06-14 Cetim-Cermat Procédé et installation de fabrication d'un matériau thermoplastique
EP3957455A1 (fr) * 2016-12-06 2022-02-23 Cetim Grand Est Installation de fabrication d'un materiau thermoplastique et son utilisation

Also Published As

Publication number Publication date
AU3411001A (en) 2001-09-03

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