WO2000040399A1 - Composition de materiau thermoplastique - Google Patents

Composition de materiau thermoplastique Download PDF

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Publication number
WO2000040399A1
WO2000040399A1 PCT/EP2000/000017 EP0000017W WO0040399A1 WO 2000040399 A1 WO2000040399 A1 WO 2000040399A1 EP 0000017 W EP0000017 W EP 0000017W WO 0040399 A1 WO0040399 A1 WO 0040399A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibres
thermoplastic material
composition according
sisal
composition
Prior art date
Application number
PCT/EP2000/000017
Other languages
English (en)
Inventor
Paolo Steinbach
Fulvio Capussotti
Original Assignee
G.O.R. Applicazioni Speciali S.P.A.
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 G.O.R. Applicazioni Speciali S.P.A. filed Critical G.O.R. Applicazioni Speciali S.P.A.
Priority to AU21052/00A priority Critical patent/AU2105200A/en
Publication of WO2000040399A1 publication Critical patent/WO2000040399A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
    • B29K2311/10—Natural fibres, e.g. wool or cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Definitions

  • thermoplastic material composition A thermoplastic material composition
  • the invention relates to a thermoplastic material composition, particularly for use in the production of sheets .
  • Sheets of thermoplastic material have a wide spread use for producing a great number of products for example as supporting layers for interior lining panels in vehicles, furniture, buildings or for manufacturing panels used as structural elements for prefabricated buildings, for internal separation walls, for doors, or the like, for truck bodies of any kind
  • Such sheets has to be extremely cheap concerning the material used and the process for their production. At the same time such sheets must be as light as possible and have high mechanical qualities relating to their mechanical resistance to stress and loads. Furthermore, particularly when used for interior lining panels of vehicles such sheets must show a correct behaviour under rupture, i. e. they do not break forming sharp splitter which might separate from the rest of the panel or sharp edges or veining. Sheets of thermoplastic material must further show a ductile rupture behaviour with nails, this means by fixing nails, the material does not form veining. Another important feature relates to the fact that the composition must be ambient-friendly, this means that it is possible to recycle the material at high degree. Thermoplastic sheets must also show a very good behaviour relating to shaping according to different techniques, for example by drawing or by moulding and particularly in the case of strong two or three dimensional deformations.
  • compositions comprising thermoplastic material and natural organic fibres are known.
  • the fibres are subject o different kinds of preventive treatments which might comprise separately or in combination pre ixing with the thermoplastic material itself or with other thermoplastic materials and/or with granulated fillers either of organic or inorganic, natural or synthetic kind, and/or preheating of the fibres itself or of the premixed mass or precoating of the fibres.
  • Other solutions suggests o introduce the fibres in form of woven, non woven or agglomerated sheets which are bonded to or permeated with the thermoplastic material.
  • the present invention is based on the problem to provide for a thermoplastic composition particularly for the production of sheets having all the desired qualities listed above.
  • thermoplastic composition according to claim 1 In using sisal fibres directly introduced alone in the thermoplastic material, particularly in the extruder , sheets may be obtained which show all the features desired features listed above without needing preventive treatments of the fibres or other particular operation steps.
  • polyolephins resins and particularly polypropylene polymers or copoly ers the further advantage is achieved of having a highly recyclable material .
  • Sisal fibres are generally introduced as singularised fibres in the mass of thermoplastic material already inside the extruder.
  • Sisal fibres are long fibres and are mixed to the thermoplastic material without having a predefined orientation, his means a isotropic orientation, but with casual orientations so that in the composition in the extruder there is a quite random distribution of the orientation of the fibres.
  • the length of the fibres might vary from 3 to 20 mm, particularly from 5 to 12mm preferably from 6 to 8 mm.
  • the content by weight of Sisal fibres of the composition may vary from 10 to 60%, particularly from 30 to 50% of the total mass of the composition.
  • the content of Sisal fibres in the composition according to the invention may vary in order to regulate the mechanical and weight characteristics of the material. Particularly interesting is also the fact that even using high contents of fibres in the composition a specific weight of the composition may be achieved which is less than 1 g/cm 3 this means that the composition may be used for producing floating sheets having improved mechanical resistance and which are relatively cheap.
  • an organic filler may be added to the composition of Sisal and thermoplastic material. This is done separately to the feeding and mixing of the sisal fibres to the thermoplastic material .
  • the organic filler may consist in wood particles or wood flour.
  • the range of the particle size has its maximum concentration at about 250 micron.
  • the amount of organic filler may vary between about 10 and 40% in weight relating to the total weight of sisal fibres and organic filler. Particularly advantageous are the use of flour of fir wood or of beech wood.
  • the present invention does no exclude adding one or more of other kinds of natural, or synthetic fibres to the sisal fibres.
  • the one or more additional fibres may be added separately to the composition or premixed to the sisal fibres.
  • This additional one or more fibres may have the function of regulating mechanical, physical and/or chemical characteristics of the composition, for example in the case of special use of the composition.
  • inorganic filler may be added, particularly in the form of granulate or powder.
  • Inorganic fillers may be mineral fillers, such as talc or the like.
  • the invention relates to a composition for producing sheets of thermoplastic material.
  • the sheets are obtained by extrusion.
  • a predetermined amount of thermoplastic material, such as polyolephin resin, especially polypropylene polymer or copolymer is fed alone to the extruder and heated.
  • Singularised sisal fibres are then fed alone to the extruder.
  • the sisal fibres are neither preheated, nor premixed with other fibres or other components such as filler or the like.
  • the sisal fibres are also not pre-coated for improving their adhesion to the thermoplastic material.
  • a sheet of such material is obtained through a linear extrusion head.
  • the sheet may be than subjected to further treatment such as shaping through moulding, combination with other sheets for forming composite or laminated panels .
  • further treatment such as shaping through moulding, combination with other sheets for forming composite or laminated panels .
  • the fibres of sisal are at least partially oriented parallel to the direction of the extrusion.
  • the sisal fibres recovers at a certain degree the originally random orientation and the mutual crossing.
  • at least further layer may be coupled to a sheet made of the composition according to the invention.
  • the at least further layer is a layer formed by a mat or the like of woven or non woven fabric.
  • the fibres may be synthetic fibres, natural fibres or mixtures thereof.
  • the mat s coupled by means of chemical/physical adhesion to the sheet made of the composition according to the invention.
  • the at least further layer may be alternatively m the form of a sheet or of a film of plastic material.
  • the layer may be m the form of a thin film or sheet of polyolephin resin, as polypropylene or the like.
  • the further layer may have a thickness between 20 and 300 microns, particularly between 20 and 150 microns.
  • to the sheet made of the composition according to the invention there are bond two further layers, each one on one side of the said sheet.
  • one layer is formed by a mat or the like of fibres, as described above, particularly of non woven fibres. This layer is not impregnated completely with the plastic material of the sheet, but almost only bond at the surfaces in contact with each other.
  • the second layer is bond to the opposite side of the sheet made of the composition according to the invention and is made of a thin film of polyolephin resin according to the above description.
  • the at least further layer may be also of other kind, as for example a sheet of paper, crepe paper, or a gauze, a grid or a net of different materials such as plastic, metal, or fibres or also a layer having a honeycomb structure or a multi-cavity layer.
  • the sheet according to the invention may be part of a composite multilayer structure comprising one or more of the different preceding layers and at leas one but even more of the sheets made with the composition according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

L'invention concerne une composition comprenant un matériau thermoplastique ainsi que des fibres naturelles, lesquelles sont des fibres de sisal et sont introduites seules dans le matériau thermoplastique. Ce matériau est une résine polyoléfinique, notamment un polymère ou copolymère de polypropylène. Les fibres de sisal sont introduites sans être préalablement chauffées ou prémélangées que ce soit avec d'autres matériaux ou avec le matériau thermoplastique lui-même.
PCT/EP2000/000017 1999-01-08 2000-01-04 Composition de materiau thermoplastique WO2000040399A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21052/00A AU2105200A (en) 1999-01-08 2000-01-04 A thermoplastic material composition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITSV99A000001 1999-01-08
IT1999SV000001A IT1309905B1 (it) 1999-01-08 1999-01-08 Lastra,pannello,o simili di materia plastica termoformabile e metodoper la produzione degli stessi.

Publications (1)

Publication Number Publication Date
WO2000040399A1 true WO2000040399A1 (fr) 2000-07-13

Family

ID=11408323

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/000017 WO2000040399A1 (fr) 1999-01-08 2000-01-04 Composition de materiau thermoplastique

Country Status (3)

Country Link
AU (1) AU2105200A (fr)
IT (1) IT1309905B1 (fr)
WO (1) WO2000040399A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1426525A1 (fr) * 2002-12-03 2004-06-09 DOKA Industrie GmbH Panneau de coffrage spécialement adapté à recevoir des clous
WO2004077397A1 (fr) * 2003-02-28 2004-09-10 T:Mi Flaxwood Tapio Parviainen Procede de fabrication d'un instrument de musique et instrument de musique
WO2008155244A2 (fr) * 2007-06-20 2008-12-24 Ilpa S.R.L. Industria Legno Pasotti S.R.L. Panneau pour fabriquer des coffrages pour béton coulé ou autre
EP3224042A4 (fr) * 2014-11-24 2018-07-25 BYD Company Limited Stratifié de fibre-métal et procédé de fabrication correspondant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159230A (en) * 1967-08-25 1969-07-23 Gen Motors Corp Method of making Fibre-Reinforced Synthetic Resin Articles
GB1399340A (en) * 1971-11-17 1975-07-02 British Steel Corp Metal laminates
WO1988010286A1 (fr) * 1987-06-26 1988-12-29 Namba Press Works Co., Ltd. Materiau composite thermoplastique renforce par des fibres de chanvre
EP0560129A1 (fr) * 1992-03-07 1993-09-15 BASF Aktiengesellschaft Pièce composite plate
US5585054A (en) * 1995-03-08 1996-12-17 Evans; Daniel W. Method of making a composite fiber reinforced polyethylene
DE19536074A1 (de) * 1995-09-28 1997-04-10 Moeller Plast Gmbh Verbundbauteil, insbesondere Verbundverkleidungsteil

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159230A (en) * 1967-08-25 1969-07-23 Gen Motors Corp Method of making Fibre-Reinforced Synthetic Resin Articles
GB1399340A (en) * 1971-11-17 1975-07-02 British Steel Corp Metal laminates
WO1988010286A1 (fr) * 1987-06-26 1988-12-29 Namba Press Works Co., Ltd. Materiau composite thermoplastique renforce par des fibres de chanvre
EP0319589A1 (fr) * 1987-06-26 1989-06-14 Namba Press Works Co. Ltd. Materiau composite thermoplastique renforce par des fibres de chanvre
EP0560129A1 (fr) * 1992-03-07 1993-09-15 BASF Aktiengesellschaft Pièce composite plate
US5585054A (en) * 1995-03-08 1996-12-17 Evans; Daniel W. Method of making a composite fiber reinforced polyethylene
DE19536074A1 (de) * 1995-09-28 1997-04-10 Moeller Plast Gmbh Verbundbauteil, insbesondere Verbundverkleidungsteil

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1426525A1 (fr) * 2002-12-03 2004-06-09 DOKA Industrie GmbH Panneau de coffrage spécialement adapté à recevoir des clous
WO2004077397A1 (fr) * 2003-02-28 2004-09-10 T:Mi Flaxwood Tapio Parviainen Procede de fabrication d'un instrument de musique et instrument de musique
US7214866B2 (en) 2003-02-28 2007-05-08 Flaxwood Oy Method for manufacturing musical instrument and a musical instrument
WO2008155244A2 (fr) * 2007-06-20 2008-12-24 Ilpa S.R.L. Industria Legno Pasotti S.R.L. Panneau pour fabriquer des coffrages pour béton coulé ou autre
WO2008155244A3 (fr) * 2007-06-20 2009-02-26 Ilpa S R L Ind Legno Pasotti S Panneau pour fabriquer des coffrages pour béton coulé ou autre
EP3224042A4 (fr) * 2014-11-24 2018-07-25 BYD Company Limited Stratifié de fibre-métal et procédé de fabrication correspondant

Also Published As

Publication number Publication date
ITSV990001A0 (it) 1999-01-08
AU2105200A (en) 2000-07-24
ITSV990001A1 (it) 2000-07-08
IT1309905B1 (it) 2002-02-05

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