[go: up one dir, main page]

WO2004003063A1 - Mousses thermoplastiques contenant des matieres de charge nanostructurees et leur procede de production - Google Patents

Mousses thermoplastiques contenant des matieres de charge nanostructurees et leur procede de production Download PDF

Info

Publication number
WO2004003063A1
WO2004003063A1 PCT/EP2003/006941 EP0306941W WO2004003063A1 WO 2004003063 A1 WO2004003063 A1 WO 2004003063A1 EP 0306941 W EP0306941 W EP 0306941W WO 2004003063 A1 WO2004003063 A1 WO 2004003063A1
Authority
WO
WIPO (PCT)
Prior art keywords
nanoparticles
fillers
foams
polymer
foams according
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
PCT/EP2003/006941
Other languages
German (de)
English (en)
Other versions
WO2004003063A8 (fr
Inventor
Maik Ziegler
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.)
Fagerdala Deutschland GmbH
Original Assignee
Fagerdala Deutschland 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 Fagerdala Deutschland GmbH filed Critical Fagerdala Deutschland GmbH
Priority to AU2003280166A priority Critical patent/AU2003280166A1/en
Publication of WO2004003063A1 publication Critical patent/WO2004003063A1/fr
Publication of WO2004003063A8 publication Critical patent/WO2004003063A8/fr
Anticipated expiration legal-status Critical
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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients

Definitions

  • the invention relates to physically expanded thermoplastic foams made of a polymer matrix and the fine fillers 5 embedded therein and having a density between 8 and 350 g / l, and to a process for their production in which a thermoplastic polymer in the form of granules is fed to an extruder together with fine fillers and extruded to form a polymer compound, the compound being foamed simultaneously or thereafter by means of physical blowing agents and being extruded into foam particles, a foam sheet or a foam sheet.
  • polyolefin foam particles are produced in an autoclave or extrusion process.
  • spherical, closed-cell foam particles with a diameter are usually made from microgranules in a pressure vessel with the addition of blowing agents
  • the polymer is expanded into the polymer melt at the nozzle outlet by adding physical blowing agents and chopped off to form almost spherical or cylindrical foam particles.
  • the molded parts are produced from the foam particles in the molded part process by welding using superheated steam. Furthermore are
  • 25 15 - 150 g / 1 is achieved through their constructive design, the choice of material density or the combination with fillers, cover layers or inserts. Another possibility is to form a composite by foaming, foaming or subsequently laminating the foam parts. From DE-A-43 12 517 and DE-A-195 44 451 the combination of a foam part with a reinforcing mat, a fabric or a fleece is known to reduce the crack sensitivity of the molded part.
  • EP-A-1 077 127 a composite material based on a natural fiber mat is known which is interspersed with foamable and / or curable substances.
  • rod-shaped elements are integrated into the molded foam part in order to improve the energy absorption, so as to optimize the rigidity and the energy absorption capacity depending on the application.
  • DE-A-33 45 408 and DE-A-44 32 082 describe molded parts made of foam elements of different densities, the properties of which can be changed depending on the density.
  • nanoparticles that is to say particles with an average particle size in the nanometer range
  • WO 01/96459 describes the improvement of the connection of nanoparticles to polymers by using modified layered silicates for the production of nano-reinforced thermoplastics and molded parts.
  • DE-A-198 15 632 describes the production of molded polymer parts with hollow structures contained therein in the form of nano-channels.
  • the invention has for its object to provide physically expanded thermoplastic foams with low density and a method for their preparation, which are simple and inexpensive to manufacture without the fillers damage the cell walls and thus the foam structure and thus can impair the mechanical strength.
  • thermoplastic foams of the type mentioned at the outset in that the foams contain 0.001-40% by mass of nanoparticles as fillers.
  • the nanoparticles of the foams according to the invention are embedded in the cell walls without the cell walls being damaged in the process.
  • the material properties of the foams according to the invention can be influenced in a targeted manner as a result of the interface interactions that occur. Since the average particle size of the nanoparticles is smaller than the thickness of the cell walls of the foam, the effect of interface effects is increased. Due to the small particle sizes, a large inner surface is introduced into the polymer, which means that the finely divided filler phase and its interface properties are effective even at low fill levels.
  • nano-reinforced or nano-filled foams with specific properties for example improved mechanical, optical, antibiotic, dirt-repellent or flame-retardant properties, can be produced.
  • Nanostructured fillers are preferably used as nanoparticles. This includes nanoparticles that have a special external shape, such as nanofibers, nanoigels, nanotubes, but also layers of nanoparticles and such nanoparticles, the surface of which is caused by elevations or depressions, scars, pores or special structural features such as one Lotus leaf-shaped surface is modified.
  • the nanoparticles are completely or partially coated, for example with salts, ions or other charged or uncharged particles, in order to specifically change their surface-active properties.
  • the nanoparticles are preferably selected from the group of pigments, carbon blacks, graphites, ceramic materials such as zinc oxide, titanium dioxide, aluminum oxide, aluminum hydroxide, mica, silicates, clays, clays and their addition compounds, in particular hydrates.
  • Ceramic nanoparticles can also be used.
  • the nanoparticles can consist of a single one of the materials mentioned, but nanoparticles based on different materials can also be used.
  • inorganic nanostructured fillers in particular form reinforcement networks in an organic polymer matrix. By orienting them within the cell walls, the nanostructured fillers can form two-dimensional networks and thus improve the mechanical properties of the foams according to the invention, in particular their tear strength. This is not possible with the known high-density foams, as described in the prior art cited at the outset, because the cell walls there are significantly thicker. One reason for this is the gas bubble deposits that occur in the usual thermoplastic foam casting process. Nanostructured fillers can also nucleate foam formation and / or crystallization and initiate nano-cellular foams. Nanoparticles with flame-retardant properties, with UV-absorbing properties, with antibiotic properties and / or with dirt-repellent properties are particularly preferably used.
  • the crystal structure in the grains of nanocrystalline solids and in nanoparticles also relaxes near interfaces or surfaces.
  • these effects play a decisive role, unlike with coarse-crystalline materials.
  • nanocarbon fibers or nanotubes improve the mechanical properties even at low fill levels.
  • Fillers such as aluminum hydroxide or synthetic mica are more flame-retardant in the form of nanoparticles than with conventional grains.
  • Zinc oxide nanoparticles protect against UV radiation and soot increases the life of the foams.
  • Foam are negatively affected, as a bursting of the cell walls is avoided during foam formation.
  • the nanoparticles have surfaces of a few hundred m Ig. These properties can also be used to improve the coloring of the foams.
  • the nanoparticles can be modified with an adhesion promoter to improve the adhesion between the filler particles and the polymer matrix.
  • An adhesion promoter can also be added to the mixture of polymer granules and nanoparticles. Surfactants, silanes or anhydrides such as maleic anhydride are preferred as adhesion promoters.
  • Polyolefins or mixtures of polyolefins are preferably used as the polymer matrix, particularly preferably polypropylene and / or polyethylene.
  • the process according to the invention of the type mentioned at the outset is characterized in that nanoparticles are used as fillers in an amount of 0.001-40 Mass percent are used, fillers and polymer granules are preferably premixed.
  • the incorporation of the nanoparticles into the polymer melt formed in the extruder can be carried out using various methods, for example in a single-shaft, two-shaft or planetary roller extruder, but also in a kneader.
  • the mixing and adjustment of the filler components can first be achieved by manual premixing or by direct addition of the nanoparticles in the processing process. Due to the small particle sizes, the particles are not damaged by shear stress during compounding and the subsequent processes for further processing and formation of the foam structure.
  • the compound of polymer matrix and nanoparticles can then first be granulated or extruded directly into foams in the form of foils, sheets or profiles.
  • the nanoparticles can be further processed by adding physical blowing agents directly to foams such as foamed semi-finished products, preferably XPP (polypropylene foam films), molded parts or foam particles, preferably EPP (expanded polypropylene particle foam), EPS (expanded polystyrene) or EPE (expanded polyethylene particle foam).
  • foamed semi-finished products preferably XPP (polypropylene foam films), molded parts or foam particles, preferably EPP (expanded polypropylene particle foam), EPS (expanded polystyrene) or EPE (expanded polyethylene particle foam).
  • the directly foamed products are manufactured in the extrusion process using appropriate shaping tools.
  • One variant is the production of microgranules from the polymer compound and the foaming of the granules to form foam particles in the autoclave process, which are welded to superheated steam in the subsequent molding process.
  • Another variant is the foaming of the compound in the extrusion process by adding physical blowing agents. The polymer melt expanding at the nozzle outlet is chopped off directly to foam particles.
  • Foam molded parts are also produced in the molded part process by means of welding using superheated steam.
  • Another variant is the direct foaming of semi-finished or molded parts in extrusion sion process by using physical blowing agents and an appropriate extrusion tool.
  • An unwanted agglomeration of the nanoparticles during processing is prevented or at least strongly suppressed by suitable coating of the particles.
  • Polypropylene granules and a nanostructured filler made of alumina (aluminum oxide) and / or layered silicate (montmorillonite) are fed to an extruder via metering devices.
  • the filler particles are finely dispersed in the polymer matrix. Foaming of the polymer compound is achieved online or in a second extrusion process by adding physical blowing agents.
  • the polymer melt expanding at the nozzle outlet is knocked off into foam particles by means of rotating knives.
  • the filler particles are distributed in the cell walls of the foam particles.
  • moldings are produced in a conventional manner by welding the foam particles (beads) using superheated steam.
  • Example 1 a polymer compound made from polypropylene granules and nanostructured fillers is extruded and foamed. At a flat slot nozzle or an annular nozzle, the polymer melt expands to a foam plate or a foam sheet due to the pressure drop. The plates or foils can then be further processed into molded parts in a thermoforming process.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne des mousses thermoplastiques physiquement expansées comprenant une matrice polymère et des matières de charge à fines particules incorporées dans la matrice. Ces mousses ont une épaisseur comprise entre 8 et 350 g/l et contiennent 0,001 à 40 % en masse de nanoparticules comme matières de charge. L'invention concerne un procédé de production de mousses, selon lequel un polymère thermoplastique est cédé à l'extrudeur sous forme de granulés en même temps que les matières de charge à fines particules et est extrudé pour obtenir un composé polymère, ce composé gonflant simultanément ou ultérieurement à l'aide d'un agent d'expansion physique et étant extrudé pour donner des particules de mousse, une plaque de mousse ou un film de mousse. On utilise comme matières de charge à nouveau des nanoparticules dans une quantité de 0,001 à 40 % en masse.
PCT/EP2003/006941 2002-07-03 2003-06-30 Mousses thermoplastiques contenant des matieres de charge nanostructurees et leur procede de production Ceased WO2004003063A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003280166A AU2003280166A1 (en) 2002-07-03 2003-06-30 Thermoplastic foamed materials comprising nanostructured filling materials and method for producing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002129983 DE10229983A1 (de) 2002-07-03 2002-07-03 Thermoplastische Schaumstoffe mit nanostrukturierten Füllstoffen und Verfahren zu deren Herstellung
DE10229983.8 2002-07-03

Publications (2)

Publication Number Publication Date
WO2004003063A1 true WO2004003063A1 (fr) 2004-01-08
WO2004003063A8 WO2004003063A8 (fr) 2004-07-22

Family

ID=29723691

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/006941 Ceased WO2004003063A1 (fr) 2002-07-03 2003-06-30 Mousses thermoplastiques contenant des matieres de charge nanostructurees et leur procede de production

Country Status (3)

Country Link
AU (1) AU2003280166A1 (fr)
DE (1) DE10229983A1 (fr)
WO (1) WO2004003063A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004004237C5 (de) * 2004-01-27 2009-11-12 Woco Industrietechnik Gmbh Verfahren zur Herstellung von mikroporösen Kunststoffprodukten und die nach diesem Verfahren erhältlichen Formteile, Profile und Granulate
US9187608B2 (en) 2005-09-08 2015-11-17 Owens Corning Intellectual Capital, Llc Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance
US10184037B2 (en) 2003-11-26 2019-01-22 Owens Corning Intellectual Capital, Llc Thermoplastic foams and method of forming them using nano-graphite
WO2026013027A1 (fr) * 2024-07-10 2026-01-15 Institut National De Recherche Pour L'agriculture, L'alimentation Et L'environnement Procédé pour la fabrication d'une mousse

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8568632B2 (en) * 2003-11-26 2013-10-29 Owens Corning Intellectual Capital, Llc Method of forming thermoplastic foams using nano-particles to control cell morphology
DE102012208914A1 (de) * 2012-05-25 2013-11-28 Bombardier Transportation Gmbh Sitz für den Innenraum eines öffentlichen Verkehrsmittels mit farblich gestalteter Gewebelage
DE102015116606B4 (de) 2015-09-30 2018-07-12 Jörg Beckmann Verfahren zur Herstellung eines Kunststoffbauteils und Kunststoffbauteil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5717000A (en) * 1996-02-23 1998-02-10 The Dow Chemical Company Despersions of delaminated particles in polymer foams
WO2000037242A1 (fr) * 1998-12-21 2000-06-29 Magna International Of America, Inc. Composite en mousse structuree comprenant des nanoparticules de renforcement et procede de fabrication dudit composite
WO2000047657A2 (fr) * 1999-02-12 2000-08-17 The Dow Chemical Company Objets nanocomposites et procede de fabrication associe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5717000A (en) * 1996-02-23 1998-02-10 The Dow Chemical Company Despersions of delaminated particles in polymer foams
WO2000037242A1 (fr) * 1998-12-21 2000-06-29 Magna International Of America, Inc. Composite en mousse structuree comprenant des nanoparticules de renforcement et procede de fabrication dudit composite
WO2000047657A2 (fr) * 1999-02-12 2000-08-17 The Dow Chemical Company Objets nanocomposites et procede de fabrication associe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10184037B2 (en) 2003-11-26 2019-01-22 Owens Corning Intellectual Capital, Llc Thermoplastic foams and method of forming them using nano-graphite
DE102004004237C5 (de) * 2004-01-27 2009-11-12 Woco Industrietechnik Gmbh Verfahren zur Herstellung von mikroporösen Kunststoffprodukten und die nach diesem Verfahren erhältlichen Formteile, Profile und Granulate
US9187608B2 (en) 2005-09-08 2015-11-17 Owens Corning Intellectual Capital, Llc Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance
WO2026013027A1 (fr) * 2024-07-10 2026-01-15 Institut National De Recherche Pour L'agriculture, L'alimentation Et L'environnement Procédé pour la fabrication d'une mousse
FR3164411A1 (fr) * 2024-07-10 2026-01-16 Institut National De Recherche Pour L'agriculture, L'alimentation Et L'environnement Procédé pour la fabrication d’une mousse

Also Published As

Publication number Publication date
AU2003280166A8 (en) 2004-01-19
AU2003280166A1 (en) 2004-01-19
DE10229983A1 (de) 2004-01-15
WO2004003063A8 (fr) 2004-07-22

Similar Documents

Publication Publication Date Title
DE69426405T2 (de) Aus thermoplastischem Kunststoff und silan-modifizierten thermoplastischen Kunststoff hergestelltes Schaummaterial und Verfahren zum Herstellen derselben
DE69807332T2 (de) Energieabsorbierende artikel aus extrudierten, thermoplastischen schaumstoffen
EP2190939B1 (fr) Composition de revêtement pour particules alvéolaires et procédé de fabrication d'éléments moulés alvéolaires
EP1840155B1 (fr) Poudre de polymère, procédé de fabrication et utilisation d'une telle poudre et corps de formage à partir de celle-ci
DE102004004237B4 (de) Verfahren zur Herstellung von mikroporösen Kunststoffprodukten und die nach diesem Verfahren erhältlichen Formteile, Profile und Granulate
WO2012100880A1 (fr) Procédé de production d'un film plastique multicouche
DE69433595T2 (de) Thermoplastischer harzschaumstoff und verfahren zur herstellung desselben
EP3237508B1 (fr) Renforcement par fibres de mousses constituées de segments reliés entre eux
DE102006005500A1 (de) Verwendung von Polymerpulver, hergestellt aus einer Dispersion, in einem formgebenden Verfahren und Formkörper, hergestellt aus diesem Polymerpulver
DE2314146C2 (de) Verfahren zur Herstellung eines hochgefüllten thermoplastischen Kunststoffextrudats
EP2530113B1 (fr) Mousse composite, élément d'isolation thermique en mousse composite et procédé de fabrication d'une mousse composite
EP3218158B1 (fr) Procédé de fabrication d'un stratifié de film de mousse et son utilisation
EP3972841A1 (fr) Frittage sélectif de matériaux composites à base de polymère
WO2004003063A1 (fr) Mousses thermoplastiques contenant des matieres de charge nanostructurees et leur procede de production
DE60004972T2 (de) Nanoverbundgegenstände und herstellungsverfahren dafür
EP2994242B1 (fr) Procédé de revêtement par pulvérisation
WO2018193077A1 (fr) Composition et pièce moulée pouvant être fabriquée par moulage de la composition
DE60024849T2 (de) Thermoplastischer hartschaum und verfahren zu dessen herstellung
EP3565724B1 (fr) Support à base de matière plastique pour panneau de mur ou de plancher décoré
EP1702945B2 (fr) Particules de mousse en polyoléfine contenant une charge
DE2142855C3 (de) Verfahren zum Herstellen von Formkörpern aus Kunststoff
EP4344874A1 (fr) Composition pour procédé de fabrication additive
DE19860878A1 (de) Füllstoff für organische und anorganische Polymere, Verfahren zur Herstellung eines Polymerwerkstoffes mit diesem Füllstoff sowie Verwendung dieses Polymerwerkstoffes
DE102005013040A1 (de) Füllstoffhaltige Polyolefinpartikelschaumstoffe
WO2018114298A1 (fr) Procédé destiné à la fabrication d'un stratifié de film expansé, mélange de plastiques utilisé pour ce procédé, stratifié de film expansé, ainsi que son utilisation

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
CFP Corrected version of a pamphlet front page
CR1 Correction of entry in section i

Free format text: IN PCT GAZETTE 02/2004 UNDER (30) REPLACE "01 JULY 2002 (01.07.2002)" BY "03 JULY 2002 (03.07.2002)"

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP