KR101221286B1 - Method of preparing complex sheet - Google Patents

Method of preparing complex sheet Download PDF

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Publication number
KR101221286B1
KR101221286B1 KR1020080054430A KR20080054430A KR101221286B1 KR 101221286 B1 KR101221286 B1 KR 101221286B1 KR 1020080054430 A KR1020080054430 A KR 1020080054430A KR 20080054430 A KR20080054430 A KR 20080054430A KR 101221286 B1 KR101221286 B1 KR 101221286B1
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KR
South Korea
Prior art keywords
web
composite sheet
mat
method
organic material
Prior art date
Application number
KR1020080054430A
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Korean (ko)
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KR20090128603A (en
Inventor
박명철
정기훈
김희준
Original Assignee
(주)엘지하우시스
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Priority to KR1020080054430A priority Critical patent/KR101221286B1/en
Publication of KR20090128603A publication Critical patent/KR20090128603A/en
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Publication of KR101221286B1 publication Critical patent/KR101221286B1/en

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/02Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/347Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated ethers, acetals, hemiacetals, ketones or aldehydes
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them

Abstract

The present invention relates to a method for producing a composite sheet in which a web or a mat including a reinforcing material is coated with an organic material, and more particularly, comprising an organic material and a solvent in a web or a mat made of a reinforcing material and a matrix material. It relates to a method for producing a composite sheet comprising the step of spraying a liquid. According to the present invention, by spraying a liquid organic material containing a solvent other than a polymer powder or a melt, it is possible to manufacture a highly concentrated fiber-reinforced composite sheet having a high impregnation and a thin thickness, thereby providing a composite sheet having excellent strength and rigidity. Has the effect of
Composite sheet, organic material, reinforcing material, liquid phase, spray, strength, rigidity, impregnation

Description

Manufacturing method of composite sheet {METHOD OF PREPARING COMPLEX SHEET}

The present invention relates to a method for producing a composite sheet excellent in strength and rigidity in which a web or a mat including a reinforcing material is coated with an organic material.

Generally, high-strength thermoplastics include glass-fiber mat thermoplastic composites (GMT) and injection-type composites using long-fiber-reinforced pellets (Granule-Long Fiber reinforced Thermoplastics). LFT ', and Long Fiber reinforced Thermoplastic-Direct Compounding (hereinafter referred to as' LFT-D').

The thermoplastic high-strength plastic reinforced impact strength, flexural modulus and bending strength by using long fibers compared to short fiber composites, but additional local reinforcement reinforced with continuous fibers is required to be applied to some automobile parts such as bumper beams and seatbacks. do.

 Local reinforcing materials are generally sold in the form of plastic composite sheets, but there are many differences in physical properties depending on the manufacturing method thereof. In general, thermosetting plastic composite sheets are fabricated by weaving glass fibers to impregnate the composite sheets, and in the case of GMT, the double belt method is used to induce impregnation of glass fibers and polymers, but impregnation is not so good. .

In the case of Saint Gobain Vetrotex, France, polymer powder is applied to woven glass fibers to make sheets by heating and compressing them.

1 is a simplified process diagram showing a method for manufacturing a composite sheet according to the prior art.

As shown in FIG. 1, the fabric 2 released from the reel 1 is passed over the conversion roll 3 and the front roll 4 to reduce the tension of the web, and then the reservoir filled with the coated powder ( It is passed under a powder coating device 5 consisting of rolls 6 with grooves connected to the bottom of 7) to distribute the powder over the surface of the fabric. The powdered fabric is then heated to a temperature high enough to melt the organic material contained in the fabric and the powdered organic material without contacting the infrared panel 8. This heated fabric is passed between the press rolls 9 to compress the molten organic material with a force of about 5 to 50 kN per meter of width and thereafter to pass over the cooling table 10. When moving from the table 10, a composite sheet is produced by continuously cutting the cooled hard composite strip 11 into the form of a sheet 13 of the desired dimensions using an automatic shear blade 12, and such a manufacturing method also There is a limit to the degree of impregnation.

In order to solve the problems of the prior art as described above, an object of the present invention is to provide a method for producing a composite sheet excellent in strength and rigidity of the impregnation between the organic material and the reinforcing material.

These and other objects of the present invention can be achieved by the present invention described below.

In order to achieve the above object,

In the manufacturing method of a composite sheet, wherein a web or mat including a reinforcing material is applied with an organic material,

Continuously producing into a web or mat by the weaving machine 22 from the mixture of the supplied reinforcing material and the matrix material;

Applying a liquid phase including an organic material and a solvent on the manufactured web or mat by spraying device 24; And

The liquid applied to the web or mat provides a method for producing a composite sheet comprising the step of evaporating the solvent while passing through the heating zone (25).

According to the present invention, it is possible to manufacture a highly concentrated fiber-reinforced composite sheet having a high impregnation and a thin thickness, and thus has an effect of providing a composite sheet having excellent strength and rigidity.

Hereinafter, the present invention will be described in detail.

In the present invention, the impregnation is improved by spraying the organic material to be applied to the web or mat is a liquid containing a solvent and additives, etc., not a polymer powder or a melt. As a result, it is possible to provide a composite sheet having higher strength and rigidity, and the composite sheet can be used in a device and an automobile part for product transportation or storage.

Figure 2 is a simplified process diagram showing the manufacturing method of the composite sheet according to the present invention.

As shown in FIG. 2 above, the weave device 22 is continuously made into a web or mat from the supplied reinforcing material and the matrix material.

Specifically, the web is formed from one or more organic thermoplastic or thermoset materials forming the matrix and one or more reinforcing materials capable of reinforcing the matrix.

The thermoplastic materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate (PET) and polybutylene terephthalate (PBT), nylon-6, nylon-6,6, nylon-11 and nylon-12 And polyamides such as polyvinyl chloride (PVC), acrylic homopolymers or copolymers, and the like.

The thermosetting materials include epoxy resins, unsaturated polyester resins, polyvinyl esters or phenolic resins.

As the reinforcing material used in the present invention, any one or two or more of organic fibers and inorganic fibers made of glass fibers, carbon fibers, and aramids are preferably used.

In addition, the web generally comprises from 10 to 90%, preferably from 15 to 85% or from 15 to 80%, more preferably from 20 to 60% by weight of the reinforcing material. The web may also comprise hybrid yarns obtained by bonding together or simultaneously winding yarns or filaments of thermoplastic and reinforcing materials. The hybrid yarn may be blended with a yarn made of only one thermoplastic material and / or one reinforcing material. The web may also consist of yarn of reinforcing material covered in whole or in part with a thermosetting organic material.

The web is in the form of a continuous yarn mat, a continuous noninterlaced yarn, knitted fabric or assembly, for example a mesh or a weft-insertion warp knit.

Subsequently, a liquid phase containing an organic material is applied onto the web or mat prepared by the spray device injector 24.

The organic material used in the present invention is preferably a thermoplastic resin of polypropylene, polyethylene, polyester, polyamide and acrylonitrile-butadiene-styrene (ABS), or a thermosetting resin of polyurethane, phenol and epoxy.

In addition to the organic material, the liquid phase contains a solvent capable of dissolving the polymer, a compatibilizer and a stabilizer for increasing compatibility with the reinforcing material. In this case, the liquid phase may be heated so as to be sufficiently mixed.

As described above, in the present invention, even when the polymer is melted by using a polymer having a low viscosity dissolved in a solvent, the polymer itself has a high viscosity to compensate for the fact that it is difficult to impregnate each filament of the fiber. That is, in the present invention, the impregnability of the polymer is improved by spraying the liquid phase including the polymer together with the solvent and the additive, not the polymer powder or the melt, by spraying the web or mat.

Thereafter, the liquid phase applied to the web or mat passes through the heating zone 25 and all of the solvent is evaporated. Subsequently, it is molded to a desired thickness through the pressing roll 26, and cut into the desired size by the cutter 27, the composite sheet 28 is completed.

The composite sheet of the present invention thus completed is manufactured as a highly concentrated fiber-reinforced composite sheet having a high impregnation and a thin thickness, thereby making it more excellent in strength and rigidity.

Although described in detail above with reference to the specific embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made within the scope and spirit of the present invention, and such modifications and modifications belong to the appended claims. It is also natural.

1 is a simplified process diagram showing a method for manufacturing a composite sheet according to the prior art.

Figure 2 is a simplified process diagram showing the manufacturing method of the composite sheet according to the present invention.

* Brief description of the main symbols in the drawings *

<Figure 1>

1: reel 2: fabric

3: transition roll 4: front roll

5: powder coating device 6: roll

7: storage device 8: infrared panel

9: press roll 10: cooling table

11: strip 12: blade

13: sheet 14: conveyor belt

<FIG. 2>

21: fiber bundle 22: fiber weaving device

23: roll 24: injector

25: heating zone 26: pressing roll

27: cutter 28: composite sheet

Claims (6)

  1. In the manufacturing method of a composite sheet, wherein a web or mat including a reinforcing material is applied with an organic material,
    One or two or more reinforcing materials selected from organic fibers and inorganic fibers composed of glass fibers, carbon fibers, and aramids,
    Thermoplastic materials of polyolefins, polyesters, polyamides, or acrylic homopolymers or copolymers; Or mixing one or two or more matrix materials selected from thermosetting materials of unsaturated polyester resins, polyvinyl esters or phenolic resins to prepare a mixture;
    Continuously producing the mixture into a web or mat by a weaving device (22);
    Thermoplastic resins of polypropylene, polyethylene, polyesters, polyamides and acrylonitrile-butadiene-styrene (ABS), or thermosetting resins of polyurethanes, phenols and epoxies; And a coating step of spraying and spraying a liquid phase including a stabilizer on the upper and lower surfaces of the web or the mat with an injector;
    The liquid phase applied to the web or mat is an evaporation step of evaporating the solvent while passing through the heating zone 25; And
    The cutting step of cutting by moving the web or mat; Method of manufacturing a composite sheet characterized in that consisting of.
  2. delete
  3. delete
  4. The method of claim 1,
    The web comprises 15 to 80% by weight of the reinforcing material
    Method for producing a composite sheet.
  5. delete
  6. delete
KR1020080054430A 2008-06-11 2008-06-11 Method of preparing complex sheet KR101221286B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080054430A KR101221286B1 (en) 2008-06-11 2008-06-11 Method of preparing complex sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080054430A KR101221286B1 (en) 2008-06-11 2008-06-11 Method of preparing complex sheet

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KR20090128603A KR20090128603A (en) 2009-12-16
KR101221286B1 true KR101221286B1 (en) 2013-01-10

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Country Status (1)

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101436820B1 (en) * 2012-10-04 2014-09-02 한화첨단소재 주식회사 Hybrid composition materials with reduced weight and enhanced crash performances applied aramid hybrid mat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930011632B1 (en) * 1990-06-15 1993-12-16 에리 마사요시 Composite sheet for fiber-rein forced material and manufacturing process therefor
KR19980702060A (en) * 1995-12-12 1998-07-15 뮐러 르네 Method for manufacturing glass mat and produced product
JP2004530053A (en) 2001-03-01 2004-09-30 サン−ゴバン ベトロテックス フランス ソシエテ アノニム Method and apparatus for producing composite sheet having multiaxial fiber reinforcement
KR20060132578A (en) * 2003-11-10 2006-12-21 데이진 가부시키가이샤 Carbon fiber nonwoven fabric,and production method and use thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930011632B1 (en) * 1990-06-15 1993-12-16 에리 마사요시 Composite sheet for fiber-rein forced material and manufacturing process therefor
KR19980702060A (en) * 1995-12-12 1998-07-15 뮐러 르네 Method for manufacturing glass mat and produced product
JP2004530053A (en) 2001-03-01 2004-09-30 サン−ゴバン ベトロテックス フランス ソシエテ アノニム Method and apparatus for producing composite sheet having multiaxial fiber reinforcement
KR20060132578A (en) * 2003-11-10 2006-12-21 데이진 가부시키가이샤 Carbon fiber nonwoven fabric,and production method and use thereof

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