EP2121287A1 - Composition de moulage en matière plastique thermoplastique renforcée par des fibres longues, procédé pour sa préparation et son utilisation - Google Patents

Composition de moulage en matière plastique thermoplastique renforcée par des fibres longues, procédé pour sa préparation et son utilisation

Info

Publication number
EP2121287A1
EP2121287A1 EP08701183A EP08701183A EP2121287A1 EP 2121287 A1 EP2121287 A1 EP 2121287A1 EP 08701183 A EP08701183 A EP 08701183A EP 08701183 A EP08701183 A EP 08701183A EP 2121287 A1 EP2121287 A1 EP 2121287A1
Authority
EP
European Patent Office
Prior art keywords
molding composition
fiber
composition according
propylene
glass
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP08701183A
Other languages
German (de)
English (en)
Inventor
Heinz Bernd
Bruno Wagner
Thomas Borgner
Olaf Herd
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ticona GmbH
Original Assignee
Ticona GmbH
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 Ticona GmbH filed Critical Ticona GmbH
Publication of EP2121287A1 publication Critical patent/EP2121287A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • 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
    • B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
    • B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
    • B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
    • 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
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Definitions

  • the present invention relates to a long-fiber-reinforced, thermoplastic molding composition of plastic with excellent impact resistance and impact strength.
  • the invention also relates to a process for producing this molding composition and to its use for the production of commodities.
  • Plastics in particular standard polymers such as polyethylene (PE) or polypropylene (PP), are inexpensive materials which in addition combine the advantages of a low intrinsic weight, good processability on a large scale and outstanding resistance to chemical influences or moisture. For these reasons, PE and PP occur in many areas of daily needs in countless ways, including besides
  • composition their geometric appearance or their particle size but also their interface behavior and homogeneous distribution within the polymer matrix ultimately responsible for the resulting mechanical properties of the mixture.
  • the object of the present invention was therefore to provide a molding composition based on fiber-reinforced PE or PP, which has a higher impact strength and notched impact strength than known fiber-reinforced molding compositions, but at the same time realizes the particular price advantage of plastics reinforced with fillers.
  • a molding composition of the type mentioned whose characteristic feature is to be seen in that it contains 30 to 90 wt .-% of at least one thermoplastic polyolefin, 9 to 69 wt .-% of at least one glassy reinforcing fiber and
  • the mineral filler has an anisotropy (aspect ratio) of 1 to 10, preferably 1 to 5 and particularly preferably 1 to 2.
  • thermoplastic polyolefin As thermoplastic polyolefin according to the invention addition polymers of alpha-olefins such as ethylene or propylene can be used. Examples of these are high, medium or low density PE or PP or polymethylpentene and copolymers of these olefins.
  • the polymers can be straight-chain or branched. It is also possible to use mixtures of the stated polymers.
  • PE is preferably high density polyethylene (HDPE), which in the presence of suitable catalysts type Ziegler, Phillips or Metallocenkatalysatoren industrially in gas phase or in suspension at temperatures of 50 to 150 0 C and under a pressure in the range of 2 to 80 bar will be produced.
  • HDPE high density polyethylene
  • thermoplastic polyolefin used is preferably PP which is prepared in the presence of suitable catalysts of the Ziegler, Phillips or metallocene type.
  • a particularly suitable PP has proven to be a partially crystalline polypropylene based on polypropylene. These include, in particular, partially crystalline isotactic propylene homopolymers with an isotactic fraction of
  • reinforcing fibers different materials can be used according to the invention. Typical examples thereof are high melting point or softening point reinforcing fibers such as glass fiber, carbon fiber, metal fiber or polyamide fiber.
  • glass fiber is used as the reinforcing fiber.
  • Particular preference is given to using bundles of glass fibers having a diameter of 8 to 25 ⁇ m, preferably 10 to 20 ⁇ m, more preferably 12 to 17 ⁇ m and a weight of 500 to 4,800 g per 1,000 m glass fiber roving.
  • Such rovings are preferably surface treated to improve their processing.
  • the fiber bundles are obtained by pretreating and then bundling a number of individual fibers with an aqueous emulsion or a solution of sizing agent.
  • Prefabricated fiber bundles are preferably used for the molding compound according to the invention, which are bundled, dried and wound on spools (direct roving).
  • fillers which are inexpensive and which have a preferred mean particle size, expressed as d.sub.50 value, in the range from 0.1 to 2 .mu.m, preferably from 0.3 to 1.5 .mu.m, and particularly preferably, are added as mineral fillers to the thermoplastic polyolefin 0.5 to 1, 0 microns own.
  • calcite CaCOs
  • barium sulfate or silica in their various forms.
  • the mineral fillers according to the invention are the thermoplastic
  • the particles of the mineral fillers have an anisotropy (aspect ratio) of from 1 to 10, preferably from 1 to 5 and particularly preferably from 1 to 2.
  • Polypropylene and reinforcing fiber and mineral filler optionally also contain: a) oxidation stabilizers such as sterically hindered phenols, thioethers, phosphites or phosphonites in an amount of from 0.1 to 1% by weight,
  • metal deactivators in an amount of up to 1, 5 wt .-%
  • processing aids such as highly polar to non-polar polypropylene or polyethylene waxes in an amount of up to 1% by weight and
  • the invention also relates to a method for producing the above-described molding composition, which is known as a pultrusion method in the prior art.
  • the bundles of reinforcing fibers are passed through a nozzle together with a melt of the thermoplastic material, then the bundles of reinforcing fibers are guided together with the plastic on a shaping die and thereby formed, then the shaped fiber bundles are cooled, possibly reformed and then transversely cut to the direction or wound up as an endless structure.
  • the rods have a length of 3 to 100 mm, preferably from 4 to 50 mm, particularly preferably from 5 to 15 mm, with their diameter in the
  • the molding composition of the invention has an impact strength of more than 42 kJ / m 2 , measured according to ISO 179.
  • the molding composition of the invention has a notched impact strength of more than 20 kJ / m 2 , measured according to ISO 75.
  • the molding compound according to the invention can be used for the production of computer housings or television housings and mobile telephones.
  • thermoplastic propylene homopolymer glass fibers and calcite was prepared for which the weight ratio of glass fibers and
  • Calcite is given in Table 1. The impact strength and notched impact strength were measured on the mixture, which are also shown in Table 1.
  • thermoplastic polypropylene used for Example 1 was a homopolymer having a melt flow index MFI of 48 g / 10 min, measured according to ISO
  • the glass fibers used were an e-glass, directly roving with 2,400 tex.
  • As calcite Hydrocarb 95T-OG (Omya GmbH) was used with an average particle size of 0.8 microns and an anisotropy of 1, 2.
  • the constituents of the molding composition were first melted in an extruder in a weight ratio as indicated in Table 1 at 230 0 C melt temperature. Then, the glass fiber bundles were immersed in the molten plastic in the melt nozzle. The amount of glass fiber was adjusted by adjusting the take-off speed and the amount of molten plastic added.
  • the strand-like molding compound of plastic, glass fiber and filler was transferred from the melt nozzle through a die to a forming roll and simultaneously cooled.
  • the strand-like molding material can be finally cut with a strand pelletizer into rod-shaped parts with a length of about 10 mm to facilitate transport and processing.
  • Example 2 The procedure according to Example 1 was repeated, but with the difference that calcite with an average particle size of 2.7 ⁇ m was used as filler (Millicarb OG, Omya GmbH).
  • the amounts of glass fibers and filler are given in Table 2 below.
  • the comparative example shows that as the average particle size of the calcite increases, the mechanical properties of the molding compound deteriorate.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

L'invention concerne une composition de moulage en matière plastique thermoplastique renforcée par des fibres longues qui présente une résilience et une résistance aux chocs excellentes. Elle se compose de 30 à 90 % en poids d'au moins une polyoléfine thermoplastique, de 9 à 69 % en poids d'au moins une fibre de renforcement de type verre et de 1 à 30 % en poids d'au moins une charge minérale ayant une taille de particule moyenne de l'ordre de 0,1 à 2 µm. La composition de moulage est préparée par un procédé de pultrusion et est utilisée pour la fabrication d'appareils ménagers tels que des machines à laver ou des sèche-linge, ou bien d'appareils électroménagers tels que des machines à café ou des grille-pain ou des réfrigérateurs, ou bien dans la construction automobile.
EP08701183A 2007-01-25 2008-01-23 Composition de moulage en matière plastique thermoplastique renforcée par des fibres longues, procédé pour sa préparation et son utilisation Ceased EP2121287A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007003706 2007-01-25
US89918707P 2007-02-02 2007-02-02
PCT/EP2008/000483 WO2008089963A1 (fr) 2007-01-25 2008-01-23 Composition de moulage en matière plastique thermoplastique renforcée par des fibres longues, procédé pour sa préparation et son utilisation

Publications (1)

Publication Number Publication Date
EP2121287A1 true EP2121287A1 (fr) 2009-11-25

Family

ID=39272873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08701183A Ceased EP2121287A1 (fr) 2007-01-25 2008-01-23 Composition de moulage en matière plastique thermoplastique renforcée par des fibres longues, procédé pour sa préparation et son utilisation

Country Status (3)

Country Link
US (1) US8637598B2 (fr)
EP (1) EP2121287A1 (fr)
WO (1) WO2008089963A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022129016A1 (fr) * 2020-12-16 2022-06-23 Ineos Styrolution Group Gmbh Matériau composite polymère thermoplastique contenant une charge renforcée par des fibres continues et ayant un bon lissé de surface

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DE102009027073A1 (de) 2009-06-22 2010-12-30 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät, insbesondere Kältegerät
KR101802021B1 (ko) * 2014-11-07 2017-12-28 주식회사 엘지화학 열가소성 수지 조성물, 이의 제조방법 및 이를 포함하는 성형품
EP3224301B1 (fr) 2014-11-27 2018-10-31 SABIC Global Technologies B.V. Procédé de fabrication de compositions de polypropylène renforcées par de longues fibres de verre
US10486335B2 (en) 2014-12-08 2019-11-26 Sabic Global Technologies B.V. Process for the manufacture of glass fibre reinforced pellets
US10435540B2 (en) 2014-12-22 2019-10-08 Sabic Global Technologies B.V. Flame retardant long glass fibre reinforced polypropylene composition
EP3289005A1 (fr) 2015-04-29 2018-03-07 SABIC Global Technologies B.V. Élément de véhicule de transport public
KR101674609B1 (ko) 2015-05-07 2016-11-09 롯데케미칼 주식회사 폴리올레핀 수지 단일칩 제조방법 및 폴리올레핀 수지 단일칩
WO2018017573A1 (fr) 2016-07-21 2018-01-25 Sabic Global Technologies B.V. Compositions ignifuges à base de polypropylène chargé de verre et articles formés à partir de celles-ci
EP3847088A1 (fr) 2018-09-05 2021-07-14 SABIC Global Technologies B.V. Cadre de bicyclette
CN109774093B (zh) * 2018-12-28 2021-07-30 武汉金发科技有限公司 一种玻璃纤维增强as复合材料的制备方法

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Publication number Priority date Publication date Assignee Title
WO2022129016A1 (fr) * 2020-12-16 2022-06-23 Ineos Styrolution Group Gmbh Matériau composite polymère thermoplastique contenant une charge renforcée par des fibres continues et ayant un bon lissé de surface

Also Published As

Publication number Publication date
US20100140829A1 (en) 2010-06-10
WO2008089963A1 (fr) 2008-07-31
US8637598B2 (en) 2014-01-28

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