WO2009136750A2 - Procédé de production de bois artificiel et bois artificiel produit par ce procédé - Google Patents

Procédé de production de bois artificiel et bois artificiel produit par ce procédé Download PDF

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Publication number
WO2009136750A2
WO2009136750A2 PCT/KR2009/002416 KR2009002416W WO2009136750A2 WO 2009136750 A2 WO2009136750 A2 WO 2009136750A2 KR 2009002416 W KR2009002416 W KR 2009002416W WO 2009136750 A2 WO2009136750 A2 WO 2009136750A2
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WO
WIPO (PCT)
Prior art keywords
inner layer
weight
parts
wood
mold
Prior art date
Application number
PCT/KR2009/002416
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English (en)
Korean (ko)
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WO2009136750A3 (fr
Inventor
김희연
양진영
이완호
고종이
Original Assignee
한화엘앤씨 주식회사
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.)
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Priority claimed from KR1020080043358A external-priority patent/KR100973161B1/ko
Priority claimed from KR1020080058510A external-priority patent/KR101008838B1/ko
Application filed by 한화엘앤씨 주식회사 filed Critical 한화엘앤씨 주식회사
Publication of WO2009136750A2 publication Critical patent/WO2009136750A2/fr
Publication of WO2009136750A3 publication Critical patent/WO2009136750A3/fr

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    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • 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
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/14—Wood, e.g. woodboard or fibreboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products

Definitions

  • the present invention relates to a method for manufacturing artificial wood and artificial wood produced by the same, and more particularly, the artificial wood is formed of a composite of the outer layer and the inner layer, the long-fiber is arranged in the longitudinal direction in the inner layer in a simple configuration
  • the present invention relates to an artificial wood production method and an artificial wood produced thereby to enable continuous continuous extrusion.
  • Wood powder is applied to thermoplastic resins such as polyvinyl chloride (PVC), polypropylene (PP), and polyethylene (PE). Wood plastic composite (WPC) molded by composite extrusion is generally used.
  • PVC polyvinyl chloride
  • PP polypropylene
  • PE polyethylene
  • WPC Wood plastic composite
  • the conventional artificial wood the coefficient of linear expansion according to the temperature is larger than natural wood, there is a lot of distortion or breakage due to the repeated expansion and contraction after construction, accordingly the construction method of nailing which is a construction method of wood Difficult to apply, there was a problem that the construction cost increases by using a separate construction member.
  • the conventional artificial wood there is a problem such as deflection lower than the natural wood, there is a problem that causes the increase in construction cost because the interval of the base wood to be narrowed to the bottom when applied as a flooring material.
  • the conventional artificial wood has a problem that the specific gravity is greater than the natural wood, the weight is high and thus the convenience and construction of the handle is not good.
  • waste wood wood-based raw materials such as waste materials discharged during dismantling of houses are used.
  • waste synthetic resins PP trays, sheets, etc. are recycled and used in the form of crushed synthetic resin-based raw materials, which can be manufactured at low cost.
  • they are difficult to apply as decorative materials or structural materials due to their low strength and low appearance quality. There was a disadvantage.
  • artificial wood has been proposed to be formed of composite material of outer layer and inner layer, but to apply linear reinforcement such as fiberglass or reinforcement to compensate linear expansion coefficient or structural strength. .
  • the resin is extruded in the mold to surround long fibers such as glass fibers introduced from the rear end into the mold, the resin is hardened in the mold and pulled out at the front end of the mold by a pair of endless belt structures or a driving press roller. Done.
  • the glass fiber is supplied at the front end of the mold, and the drawing device must be installed at the rear end of the mold, thereby increasing the length of the manufacturing line and having a complicated structure.
  • conditions such as the pulling force and the pulling speed become strict, There was a problem that it is difficult to uniformly control the quality of the product.
  • the inner layer in which the long fibers are buried must first be molded, and then the outer layer must be molded outside the molded inner layer. Since a separate mold is required for molding, there is a problem that the device cost increases in the mold cost and the maintenance cost of the mold.
  • the present invention has been made in order to solve the above problems of the conventional artificial wood and the manufacturing method as described above, the artificial wood formed of a composite of the outer layer and the inner layer is arranged in the longitudinal direction in the longitudinal direction inside the inner layer It is an object of the present invention to provide a method for manufacturing artificial wood that can be efficiently and continuously extruded with a simple configuration.
  • the outer layer is formed by mixing wood powder and synthetic resin, the inner layer integrally molded to the outer layer by double extrusion, and continuous in the longitudinal direction inside the inner layer
  • the long fiber bundle is parallel to the inclined portion disposed inclined toward the front of the mold from the outside of the mold for forming the inner layer and the inside of the mold. It is characterized in that it is continuously disposed in the longitudinal direction in the interior of the inner layer by being introduced into the mold through the long-fiber injection pipe formed integrally formed in the injection guide portion.
  • the long fiber bundle disposed in the inner layer is introduced into the portion adjacent to the outlet side of the mold for forming the inner layer, the long-fiber into which the inner layer molding in a somewhat hardened state
  • the long fiber bundle By pulling the bundle and allowing it to be ejected from the mold, it is possible to arrange the long fiber bundle in the longitudinal direction inside the inner layer to be extruded, in a simple configuration and efficiently.
  • the long fiber bundle is coated with a synthetic resin so as to be firmly combined with the inner layer, so that the long fiber bundle is preferably introduced into the inner layer while the coated synthetic resin is softened, and the plurality of long fiber strands are twisted together. It is preferably added to the mold in a state, it is preferable to be introduced in a twisted state in a state in which there is a gap between the fiber strands so that the synthetic resin for coating can penetrate between the strands.
  • the inner layer molding material is introduced from the front of the mold, and the outer layer molding material is injected perpendicular to the extrusion direction of the mold, thereby integrally forming the outer layer molding mold and the outer layer molding mold. It is possible.
  • the long-fiber feed pipe is placed through the initial forming part of the outer layer or inner layer, but the point outside the feed pipe is the part that corresponds to the input pipe due to the pressure in the mold because the inner layer and the outer layer are not completely cured yet. This fills up the traces of the input pipe.
  • the long fiber bundle in addition to glass fibers, mineral fibers, polyethylenterephthalate fibers, aramid fibers, natural fibers, engineering plastic fibers, and the like may be applied.
  • the inner layer may be formed in a solid form such as a plate or a rod, but in order to secure sufficient flexural rigidity in the same volume, the inner layer may be formed in a hollow shape. If necessary, at least one reinforcing rib may be provided in the hollow portion of the inner layer. Mold integrally.
  • the inner layer and the outer layer may be formed in the form of a plate facing each other, but in order to protect the inner layer of low hardness from scratches from the outside, it is preferable to form the outer layer surrounding the inner layer, and to prevent damage from the outside such as flooring. When applied to a member having no concern, it is preferable to mold the outer layer to cover a part of the inner layer in terms of cost reduction.
  • the outer exposed portion of the artificial wood is composed of an outer layer containing a synthetic resin in the state of the raw material with excellent physical properties and relatively expensive to secure the appearance quality
  • the inner layer is re-imaged on the recycled synthetic resin material
  • wood flour or inexpensive wood flour By applying wood flour or inexpensive wood flour, the overall manufacturing cost is lowered, and the long fiber bundles arranged in the longitudinal direction are arranged inside the inner layer, so that the overall coefficient of linear expansion expansion of the artificial wood without adversely affecting the texture of the exterior and
  • it can be manufactured at low cost, and has excellent appearance characteristics, high bending strength, low linear expansion coefficient, excellent workability, and high structural strength after construction. It is possible to provide artificial wood which can minimize the occurrence of torsion or damage.
  • the outer layer is 30 to 40 parts by weight of at least one synthetic resin selected from polypropylene resin, polyethylene resin and polyvinyl resin, 50 to 70 parts by weight of wood powder, 5 to 10 parts by weight of pigment, and sunscreen 1 to 5 It comprises a weight part, 1 to 5 parts by weight of chaff, the inner layer is 30 to 40 parts by weight of recycled synthetic resin, 50 to 70 parts by weight of wood powder, at least one powder selected from limestone, calcite, feldspar, talc, mica 5 ⁇ It is preferred to include 10 parts by weight.
  • Another feature of the present invention is that the outer layer with frequent contact from the outside is molded in a solid shape as in the conventional artificial wood to prevent damage due to scratching, but the interior of the scratch-related foam by forming the overall specific gravity of the artificial wood It is possible to form at approximately the same level as the natural wood, by arranging the long fiber bundle in the longitudinal direction continuously in the foam-molded inner layer, it is possible to reinforce the linear expansion coefficient and bending strength according to the temperature, the present invention According to the characteristics of the wood, it has a specific gravity similar to wood, lightweight, high bending strength, low linear expansion coefficient, excellent workability, high structural strength after construction, and to provide artificial wood that can minimize the occurrence of torsion or breakage You can do it.
  • the outer layer is molded by adding 50 to 70 parts by weight of wood powder and 5 to 10 parts by weight of pigment to 30 to 40 parts by weight of one or more synthetic resins selected from polypropylene and polyethylene resins
  • the inner layer is 50 to 70 parts by weight of wood.
  • 5 to 10 parts by weight of blowing agent and 5 to 10 parts by weight of dispersant are added to 30 to 40 parts by weight of any one or more synthetic resins selected from the group consisting of parts by weight, polypropylene resin, polyvinyl chloride resin, polyethylene resin and ABS resin. It is preferred to be molded.
  • the long fiber bundle placed in the inner layer is introduced into a portion adjacent to the outlet side of the mold for forming the inner layer, the inner layer molding of a somewhat hardened state
  • the long fiber bundles By attracting the long fiber bundles and allowing them to be ejected from the mold, it is possible to arrange the long fiber bundles in the longitudinal direction in the interior of the inner layer to be extruded in a simple configuration and efficiently.
  • the present invention can be manufactured at low cost by using waste synthetic resin material, and has excellent appearance characteristics, high bending strength, low linear expansion coefficient, excellent workability, high structural strength after construction, and torsion or damage It is possible to provide an artificial wood that can minimize the occurrence of.
  • the present invention has a specific gravity similar to wood, lightweight, high flexural strength, low coefficient of linear expansion, excellent workability, high structural strength after construction, and to minimize the occurrence of torsion or damage It can be provided.
  • 1 and 2 is a cross-sectional view showing an embodiment of the artificial wood according to the present invention.
  • FIG. 3 is a process chart showing the artificial wood manufacturing process of the present invention.
  • Figure 4 is a conceptual diagram illustrating the configuration of putting a long fiber bundle into the inner mold forming.
  • FIG. 5 is a cross-sectional view of the inner and outer layers integral mold.
  • FIG. 1 and 2 are cross-sectional views of the artificial wood according to the present invention, the artificial wood according to an embodiment of the present invention, the outer layer (1) formed by mixing wood powder and synthetic resin, and the outer layer (1) by double extrusion It is integrally formed in the inner layer (2), which is formed by mixing wood powder in the recycled synthetic resin material, and has a long fiber bundle (3) arranged continuously in the longitudinal direction inside the inner layer.
  • the outer layer 1 is formed by applying synthetic resin in the form of pure raw materials, such as general artificial wood, and at least one synthetic resin selected from polypropylene resin (PP), polyethylene resin (PE), and polyvinyl resin (PVC) 30-40. 5 parts by weight of pigment, 5 to 10 parts by weight of pigment, 1 to 5 parts by weight of sunscreen, and 1 to 5 parts by weight of chaff are formed by weight part, and wood powder 50 to 70 parts by weight. It is molded integrally by a double extrusion process on the outside of it.
  • synthetic resin in the form of pure raw materials, such as general artificial wood, and at least one synthetic resin selected from polypropylene resin (PP), polyethylene resin (PE), and polyvinyl resin (PVC) 30-40. 5 parts by weight of pigment, 5 to 10 parts by weight of pigment, 1 to 5 parts by weight of sunscreen, and 1 to 5 parts by weight of chaff are formed by weight part, and wood powder 50 to 70 parts by weight. It is molded integrally by a double extrusion process on the outside of
  • the inner layer 2 is made of a relatively inexpensive material, which is not exposed to the outside, but does not adversely affect the appearance quality, and a reinforcing material such as long fiber is disposed so that the overall coefficient of linear expansion expansion or structural strength of the artificial wood can be adjusted.
  • the part to be improved is formed by adding 30 to 40 parts by weight of recycled synthetic resin and 5 to 10 parts by weight of at least one powder selected from limestone, calcite, feldspar, talc and mica to 50 to 70 parts by weight of wood powder.
  • Waste synthetic resin applied to inner layer (2) is recycled by crushing PP tray, sheet, etc. Recycled synthetic resin raw materials are recycled, and wood powder is recycled wood powder manufactured by applying relatively low cost wood powder or crushing waste wood. Apply.
  • the outer layer (1) is formed by mixing wood powder and synthetic resin, and integrally molded in the outer layer (1) by double extrusion, foamed mixture of wood powder and synthetic resin with a foaming agent And an inner layer (2) to be molded, and a long fiber bundle (3) arranged continuously in the longitudinal direction inside the inner layer.
  • the outer layer (1) is formed in a solid form like a conventional artificial wood to prevent damage due to scratching, 50 to 70 parts by weight of wood powder, 30 to 40 parts by weight of at least one synthetic resin selected from polypropylene resin and polyethylene resin It is molded by adding 5 to 10 parts by weight of the pigment, and integrally molded by a double extrusion process to the outside of the inner layer 1 which is foam molded and discharged from the mold.
  • the inner layer 2 is a portion that is not affected by scratches from the outside.
  • the inner layer 2 is foamed and molded so that the overall specific gravity of the artificial wood can be formed at about the same level as the natural wood.
  • the inner layer 2 is a solid such as a plate or rod
  • the inner layer 2 is a solid such as a plate or rod
  • the inner layer 2 and the outer layer 1 may be formed in the form of a plate facing each other, but in order to secure the appearance quality and to protect the inner layer having a relatively low hardness from scratches from the outside, as shown in FIG. 2.
  • the outer layer 1 is formed into a shape that completely encloses the inner layer 2, and when the outer layer 1 is applied to a member having a part which is not likely to be damaged from the outside, such as flooring, the outer layer 1 is the inner layer 2 Mold to cover a part of).
  • the long fiber bundle 3 is for reinforcing the coefficient of linear expansion and the bending strength according to temperature, and includes glass fiber, mineral fiber, polyethylen terephthalate (PET) fiber, aramid fiber, natural fiber (Jute, Kenaf, Hemo, Flax, etc.), consisting of one or more fibers selected from the group consisting of engineering plastic fibers, which is disposed inside the inner layer in a state coated with a synthetic resin so as to be firmly combined with the inner layer to be integrated. desirable.
  • PET polyethylen terephthalate
  • aramid fiber natural fiber (Jute, Kenaf, Hemo, Flax, etc.)
  • a plurality of long fiber strands are formed twin in each other. It is preferable that the coating synthetic resin is coated to penetrate to the inside of the twisted state. For this purpose, when the long fiber in the untwisted state is applied, the coated synthetic resin is coated while twisting, and the long fiber is manufactured in a tightly twisted state. In the case of applying, it is preferable to loosen it to some extent to allow the synthetic resin for coating to penetrate into the long fiber.
  • the long fiber bundle 3 in order for the long fiber bundle 3 to be arranged continuously in the longitudinal direction inside the inner layer, adjacent to the exit side of the mold for forming the inner layer, that is, the molded article is cured to some extent to attract the long fiber bundle
  • the long fiber bundle By being inclined into the mold from the mold outer peripheral surface at a position that can be discharged from the mold, in a simple configuration, the long fiber bundle can be arranged in the longitudinal direction inside the inner layer to be extruded.
  • the process diagram is largely divided into an inner layer forming step 10, a long fiber coating step 20, and an outer layer forming step 30.
  • an extrusion process of the inner layer and a long fiber insert process into the inner layer are performed, and 30 to 40 parts by weight of recycled synthetic resin, 50 to 70 parts by weight of wood powder and dispersant are talc, limestone, calcite, 5-10 parts by weight of silicate minerals such as talc talc and mica are added.
  • Wood flour and synthetic resin are master batched (M / Batch), that is, beaded and added, or wood flour, synthetic resin and dispersant are all master batched and added.
  • the extrusion temperature is adjusted to 170-200 ° C., the molding part 100-150 ° C., the cooling part 50-120 ° C. of the mold, and the long fiber bundle 3 that has undergone the long fiber coating step 20 is shown in FIG. 4. As shown, it is introduced through the long fiber injection pipe 12 installed in the mold 11 for forming the inner layer (2).
  • the long fiber inlet pipe 12 is integrally formed with an inclined portion 12a that is inclined from the outside of the mold toward the inside of the mold and an injection guide portion 12b that is arranged parallel to the inside of the mold, and is pressed into the mold. .
  • the long fiber bundle introduced into the mold through the long fiber inlet pipe 12 is discharged from the mold 11 together with the molded product in a state that is hardened to some extent by the cooling unit.
  • Reference numeral 11a denotes a core for forming the hollow portion.
  • the long fiber coating process 20 is a process of coating with a synthetic resin so that the long fiber bundles are firmly combined with the inner layer to be integrated, and the long fiber is made of glass fiber, mineral fiber, natural fiber, engineering plastic fiber At least one fiber selected from the group is applied, and polypropylene resin or polyethylene resin is added together with a bonding aid to be heated (21) at a temperature of 150 to 200 ° C. to be introduced into the inner layer forming process (10).
  • the coated long fiber bundle is wound up in a roll form without directly being injected into the inner layer forming process 10, and then dried at a temperature of 50 to 100 ° C. to be wound up.
  • a plurality of long fiber strands are formed in a twin state with each other. It is preferable that the coating synthetic resin is coated to penetrate to the inside of the twisted state. For this purpose, when the long fiber in the untwisted state is applied, the coated synthetic resin is coated while twisting, and the long fiber is manufactured in a tightly twisted state. In the case of applying, it is preferable to loosen it to some extent to allow the synthetic resin for coating to penetrate into the long fiber.
  • the outer layer molding step 30 is a step of molding the outer layer on the outside of the inner layer by double extrusion, 30 to 40 parts by weight of at least one synthetic resin selected from polypropylene resin and polyethylene resin, 50 to 70 parts by weight of wood powder, 5 to 10 parts by weight of the pigment, 1 to 5 parts by weight of the sunscreen, and 1 to 5 parts by weight of chaff are formed by molding, and the wood powder and the synthetic resin may be added by master batching with the pigment.
  • the extrusion temperature is adjusted to 170-200 ° C., the mold part 100-150 ° C., the cooling part 50-100 ° C., and the natural wave pattern molding or surface embossing molding is performed using the difference in viscosity of the base resin of each pigment. .
  • the outer layer forming material (3a) is an embodiment in which the vertically perpendicular to the extrusion direction of the mold bar, the inclined portion 12a and the feeding guide 12b integrally formed long fibers
  • the input pipe 12 is provided in the same manner as in the previous embodiment, and the long-fiber input pipe is disposed through the initial forming portion of the outer layer or the inner layer, but the point outside the input pipe is completely cured by the inner layer and the outer layer.

Abstract

L'invention concerne un procédé de production de bois artificiel dans lequel un agencement simple est employé pour permettre une extrusion continue efficace de bois artificiel qui est formé à partir d'un matériau composite comprenant une couche extérieure et une couche intérieure, et dans lequel des filaments sont disposés de manière continue dans la direction longitudinale, dans la couche intérieure. L'invention concerne également un bois artificiel produit par ce procédé de production de bois artificiel. Dans le procédé de production de bois artificiel selon l'invention, le bois artificiel produit comprend: une couche extérieure formée par le mélange d'une fraction de bois et d'une résine artificielle; une couche intérieure formée d'une seule pièce avec la couche extérieure par co-extrusion; et un câble de filaments disposé de manière continue dans la direction longitudinale, dans la couche intérieure. Une caractéristique de l'invention est que le câble de filaments est disposé de manière continue dans la direction longitudinale, dans la couche intérieure qui est introduite dans le moule pour former la couche intérieure, par un conduit d'introduction de filaments obtenu par formation monobloc d'une pièce inclinée qui est disposée de manière inclinée, de l'extérieur du moule à la partie avant intérieur du moule; et que des parties de guidage d'introduction sont disposées en parallèle à l'intérieur du moule.
PCT/KR2009/002416 2008-05-09 2009-05-08 Procédé de production de bois artificiel et bois artificiel produit par ce procédé WO2009136750A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2008-0043358 2008-05-09
KR1020080043358A KR100973161B1 (ko) 2008-05-09 2008-05-09 인조목재
KR10-2008-0058510 2008-06-20
KR1020080058510A KR101008838B1 (ko) 2008-06-20 2008-06-20 인조목재 및 그 제조방법

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WO2009136750A2 true WO2009136750A2 (fr) 2009-11-12
WO2009136750A3 WO2009136750A3 (fr) 2010-01-21

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP2431152A3 (fr) * 2010-07-29 2012-08-01 aluplast GmbH Procédé de fabrication de profilés renforcés en matière synthétique et filière d'extrusion
CN104520081A (zh) * 2012-09-06 2015-04-15 乐金华奥斯株式会社 具有透明表层的木质聚合物/塑料复合材料

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Publication number Priority date Publication date Assignee Title
US4557882A (en) * 1982-11-20 1985-12-10 Carl Schenck Ag. Method and apparatus for equalizing the density distribution of pressed wood panels
KR970001521B1 (ko) * 1993-11-11 1997-02-11 이상일 폐 섬유와 폐 플라스틱을 이용한 인조목재의 제조방법
JPH10138212A (ja) * 1996-11-07 1998-05-26 Shine Denshi Kk 人造木材及び木目年輪模様入り製造方法
KR19990041826A (ko) * 1997-11-24 1999-06-15 전주범 이중색상 구현용 압출기
KR20030050167A (ko) * 2001-12-18 2003-06-25 강기홍 합성수지 복합패널

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557882A (en) * 1982-11-20 1985-12-10 Carl Schenck Ag. Method and apparatus for equalizing the density distribution of pressed wood panels
KR970001521B1 (ko) * 1993-11-11 1997-02-11 이상일 폐 섬유와 폐 플라스틱을 이용한 인조목재의 제조방법
JPH10138212A (ja) * 1996-11-07 1998-05-26 Shine Denshi Kk 人造木材及び木目年輪模様入り製造方法
KR19990041826A (ko) * 1997-11-24 1999-06-15 전주범 이중색상 구현용 압출기
KR20030050167A (ko) * 2001-12-18 2003-06-25 강기홍 합성수지 복합패널

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2431152A3 (fr) * 2010-07-29 2012-08-01 aluplast GmbH Procédé de fabrication de profilés renforcés en matière synthétique et filière d'extrusion
CN104520081A (zh) * 2012-09-06 2015-04-15 乐金华奥斯株式会社 具有透明表层的木质聚合物/塑料复合材料

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