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EP1290066A1 - Composite, procede pour produire un produit a partir d'un composite et procede pour produire un corps moule a partir d'un composite - Google Patents

Composite, procede pour produire un produit a partir d'un composite et procede pour produire un corps moule a partir d'un composite

Info

Publication number
EP1290066A1
EP1290066A1 EP01936377A EP01936377A EP1290066A1 EP 1290066 A1 EP1290066 A1 EP 1290066A1 EP 01936377 A EP01936377 A EP 01936377A EP 01936377 A EP01936377 A EP 01936377A EP 1290066 A1 EP1290066 A1 EP 1290066A1
Authority
EP
European Patent Office
Prior art keywords
bast fiber
fiber plants
composite
comminuted
binder
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.)
Withdrawn
Application number
EP01936377A
Other languages
German (de)
English (en)
Inventor
Nikolai Strub
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.)
Schmermund Verpackungstechnik GmbH
Original Assignee
Schmermund Verpackungstechnik 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 Schmermund Verpackungstechnik GmbH filed Critical Schmermund Verpackungstechnik GmbH
Publication of EP1290066A1 publication Critical patent/EP1290066A1/fr
Withdrawn legal-status Critical Current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
    • C08J5/045—Reinforcing macromolecular compounds with loose or coherent fibrous material with vegetable or animal fibrous material

Definitions

  • the invention relates to a composite material for the production of moldings, comprising at least one binder, at least one filler and 1 at least one reinforcing agent.
  • the invention further relates to a method for producing a product from a composite and a method for producing a molded body from a corresponding composite.
  • plastics for high-quality applications are either synthetically complex polymerized, or a lower-quality polymer matrix is mixed with glass, carbon or aramid fibers with up to 40% to reinforce them. A high amount of energy is required to produce such fibers.
  • natural fibers that have already been broken down, such as flax or silica are currently being incorporated into synthetic plastic matrices in order to create a replacement for glass fibers. A replacement for glass fibers has not yet been achieved in terms of strength.
  • a composite for the production of moldings comprising at least one binder, at least one filler and at least one reinforcing agent, which is further developed in that the at least one filler and the at least one reinforcing agent are comminuted bast fiber plants and / or whole bast fiber plants ,
  • the term "composite” includes in particular the term “composite”.
  • the filler and the reinforcing agent are particularly preferably comminuted bast fiber plants which are essentially not digested, but only cut.
  • a preferred composite is further developed in that the bast fiber plants and / or the shredded bast fiber plants are essentially present in the natural composition of the plant components.
  • the plant components wood, fibers
  • the plant components are usually present as a unit, separated, opened up or still partially adhering to each other.
  • a partial or complete separation of wood (cockroach) and fibers can occur. This also has advantages.
  • cockroaches are parts of the shredded, woody inner part of the plant stem.
  • the comminuted bast fiber plants particularly preferably comprise few cockroaches which are detached from or partially detached from bast fibers.
  • the natural composition of the plant constituents means in particular that they are still present in their natural proportions.
  • the bast fiber plants and / or the comminuted bast fiber plants are preferably dried. Also preferred are bast fiber plants and / or the comminuted bast fiber plants hemp, flax, kenaf, nettle and / or oil linen.
  • the dried and shredded or cut bast fiber plants in the natural composition of the plant constituents which are preferably to be used as fillers and reinforcing materials, have a much higher tensile strength than other natural fibers, so that they are suitable for use in technical high-quality composite polymers are predestined.
  • the fiber portion acts as a reinforcing agent and the shingles 1 essentially as a filler.
  • the binder preferably comprises synthetic and / or native monomers and / or polymers, technologically high-quality composites are possible.
  • native also means in particular biogenic.
  • a native or biogenic monomer is, for example, lactic acid, a breakdown product from the fermentation process.
  • Native or biogenic polymers are, for example, starch from the family of the polysaccharides that are vegetable, lignin or keratin from the family of the proteins that are animal. Biogenic or native polymers or monomers can also be other known materials.
  • Synthetic polymers are, for example, polyethylene, polypropylene, polystyrene and other polymers.
  • the polymers are preferably thermoplastic and serve as a plastic matrix.
  • the synthetic polymers are preferably made from petrochemical base substances.
  • Additives can preferably also be provided. These are, for example, adhesion promoters between the at least one filler and the at least one reinforcing agent and the matrix or the binder. In this case, additives are particularly suitable for reducing the combustibility and decomposability of the bast fiber plants and / or the comminuted bast fiber plants and / or the com pounds.
  • binder in particular also means matrix.
  • the reinforcing agents and the fillers are particularly preferably essentially completely enclosed by the binder and fixed in place.
  • At least one filler and the at least one reinforcing agent are preferably connected to one another essentially, in particular in natural form, a particularly cost-effective composite can be realized.
  • the composite preferably also contains at least one blowing agent, it is possible to foam the composite so that, for example, insulation materials can be produced.
  • the blowing agent is preferably chemically and / or physically active.
  • a chemical blowing agent is preferably, for example, a foam-producing material or, for example, sodium bicarbonate (baking powder).
  • a physically active blowing agent is, for example, preferably water or co 2 .
  • the at least one filler and / or the at least one reinforcing agent preferably functions as a carrier for at least one blowing agent and / or a foaming agent, a particularly simple possibility of producing corresponding composites and thus also corresponding shaped bodies is possible.
  • the water already present or additionally applied in the plants or parts of plants is particularly suitable here, which leads to foaming of the matrix or the binder at processing temperatures beyond 100 ° C. In this way, inexpensive and harmless blowing agents can be easily manufactured.
  • the moisture content of the plant parts can vary, for example, in the case of hemp between 3% and 40%, with about 12% residual moisture usually being present in the plant parts after a normal drying process.
  • the composite material can preferably be produced by means of extrusion, injection molding and / or strand laying.
  • a method for producing a product, in particular a granulate, from the aforementioned composite preferably comprises the following method steps:
  • the granulation can also take place after the material has completely solidified by cutting the extrudate.
  • This preferred injection molding process makes it easy to produce, in particular, moldings from the aforementioned composites, in particular comminuted bast fiber plants being used.
  • the bast fiber plants or the comminuted bast fiber plants or thereafter are mixed and / or mixed with the melted binder.
  • the bast fiber plants and / or the comminuted bast fiber plants are preferably added before the at least one binder is melted.
  • the shredded bast fiber plants are preferably shredded in such a way that they have a fraction of up to 3 mm.
  • the mixture of the at least one binder and the bast fiber plants and / or the comminuted bast fiber plants is preferably heated in such a way that at least one blowing agent is caused to drive. This preferred embodiment foams the mixture and in particular the binder. This measure makes it possible, for example, to produce an insulating material in a simple manner.
  • the temperature is preferably 100 ° C. or higher and the blowing agent is water, which is present or added in the bast fiber plants or the comminuted bast fiber plants and / or in the filler and / or the reinforcing material, particularly simple and inexpensive foaming is possible ,
  • the bast fiber plants and / or the comminuted bast fiber plants are preferably dried before being added or fed to the binder. Furthermore, the bast fiber plants and / or the comminuted bast fiber plants are preferably enriched with water and / or another blowing agent before they are added to the binder. Additionally or alternatively, a blowing agent can be added to the binder before or after adding the shredded bast fiber plants. This measure according to the invention enables an increased foaming effect.
  • a further method for producing a molded body from a composite material which is described above, preferably comprises the following method steps:
  • the mixture is preferably heated to such an extent that at least one blowing agent is caused to drive, insulating material or sound and / or heat-insulating molded articles can be produced in a simple manner.
  • the temperature is preferably 100 ° C. or higher, and the blowing agent is preferably water which is present or added in the bast fiber plants or the comminuted bast fiber plants or in the filler and / or the reinforcing material.
  • the bast fiber plants and / or the comminuted bast fiber plants are preferably dried before being mixed with the at least one binder. Furthermore, the bast fiber plants and / or the comminuted bast fiber plants are preferably enriched with water and / or at least one further blowing agent before being mixed with the binder. Additionally or alternatively, a blowing agent can be added to the binder before or after adding the shredded bast fiber plants.
  • a molded body preferably consists at least partially of a composite material which has been described above and / or is preferably produced by one of the methods described above.
  • long bast fiber plant fractions have an advantage.
  • Thermoplastics filled with bast fiber plants can be used, for example, as sheet goods or as semi-finished products for the production of window sills or the like.
  • the Que 1 behavior of such shaped bodies due to exposure to water is very low.
  • Moldings that can be produced are, for example, preferably wall, floor and embankment fastenings, base plates with hubs that are non-slip on the top and have an anchor on the underside, for example, posts, pasture or garden fences, planters, rearing poles, shaft and pipe covers, housings for Waste baskets, feeding troughs, leak bowls, dog houses, high seats, block playhouses, climbing towers, garden furniture, park benches and the like.
  • Corresponding moldings are also suitable as visual and noise barriers.
  • Recycled materials are particularly preferably used as binders.
  • the correspondingly preferably produced moldings are suitable for use in road construction and as components for securing in the slope and embankment area. As already indicated, they can function as insulation materials or as large-scale injection molded articles, such as surfboards, boogie boards and similar devices.
  • a device can be used in particular for comminuting the fibrous plants, although the fibrous plant material cannot be pressed and is not broken open, but instead is only cut to the desired length.
  • the fiber plant material is transferred into a receiving shaft, namely into a receiving shaft of a tobacco cutter known in the tobacco processing industry and conveyed to a mouthpiece, where it is cut into sections of the desired length by means of a cutting device with rotating or linearly moving knives.
  • a separation and separate further treatment of the fiber components and the wood and shaving components e is preferably not provided within the scope of this invention.
  • Bast fiber plant fractions from 0.1 to 150 mm, in particular from 2 mm to 50 mm, are preferably provided.
  • fiber fractions of 2 mm are used, with a proportion of the fibers of up to 40% preferably being used.
  • a fiber content of up to 70% can preferably be realized.
  • PE-HD High-density polyethylene
  • PP polypropylene homopolymer
  • PS polystyrene
  • starch (MaterialBi, Y-Type) are preferably used as matrix materials or binders.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un composite utilisé pour produire des corps moulés, qui contient au moins un liant, au moins une charge et au moins un renforçateur. L'invention se caractérise en ce que la charge (au moins au nombre de une) et le renforçateur (au moins au nombre de un) sont des plantes à fibres libériennes broyées et/ou des plantes à fibres libériennes entières. L'invention concerne en outre un procédé permettant de fabriquer un produit, notamment un granulat, qui comprend les étapes suivantes : enduire une extrudeuse avec au moins un liant et des plantes à fibres libériennes et/ou des fibres libériennes broyées ; faire fondre au moins un liant ; extruder le matériau ; granuler le matériau extrudé et solidifier le matériau par refroidissement. L'invention concerne en outre un procédé permettant de produire un corps moulé à partir d'un composite, qui comprend les étapes suivantes : acheminer un granulat à base du composite dans une machine de moulage par injection ; faire fondre le granulat ; injecter le matériau fondu, notamment sous pression, et solidifier le composite dans le moule par refroidissement. L'invention concerne en outre un procédé permettant de produire un corps moulé à partir d'un composite, qui comprend les étapes suivantes : acheminer un mélange contenant au moins un liant et des plantes à fibres libériennes et/ou des plantes à fibres libériennes broyées, notamment dans leur composition naturelle, dans la boudineuse ou dans un dispositif de dépôt de coulée, et boudinage ou dépôt de coulée du mélange, ledit mélange étant fondu au moins en partie.
EP01936377A 2000-06-05 2001-05-19 Composite, procede pour produire un produit a partir d'un composite et procede pour produire un corps moule a partir d'un composite Withdrawn EP1290066A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10027297A DE10027297A1 (de) 2000-06-05 2000-06-05 Verbundstoff, Verfahren zur Herstellung eines Produkts aus einem Verbundstoff und Verfahren zur Herstellung eines Formkörpers aus einem Verbundstoff
DE10027297 2000-06-05
PCT/EP2001/005761 WO2001094449A1 (fr) 2000-06-05 2001-05-19 Composite, procede pour produire un produit a partir d'un composite et procede pour produire un corps moule a partir d'un composite

Publications (1)

Publication Number Publication Date
EP1290066A1 true EP1290066A1 (fr) 2003-03-12

Family

ID=7644416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01936377A Withdrawn EP1290066A1 (fr) 2000-06-05 2001-05-19 Composite, procede pour produire un produit a partir d'un composite et procede pour produire un corps moule a partir d'un composite

Country Status (5)

Country Link
US (1) US20030161973A1 (fr)
EP (1) EP1290066A1 (fr)
AU (1) AU2001262302A1 (fr)
DE (1) DE10027297A1 (fr)
WO (1) WO2001094449A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50110508D1 (de) * 2001-12-17 2006-08-31 Hb Feinmechanik Gmbh & Co Kg Verfahren zur Herstellung von Granulat
US7311230B2 (en) * 2004-09-24 2007-12-25 Chi-Yee Yeh Paper-made cloth hanger
DE102006010354B4 (de) * 2006-03-07 2011-02-17 MöllerTech GmbH Verfahren zum Herstellen eines Ausgangsmaterials für einen Schäumprozess in Form eines Kunststoffgranulats sowie Verfahren zum Herstellen eines geschäumten Artikels
WO2007131298A1 (fr) * 2006-05-17 2007-11-22 Ausplaztik Pty Ltd Composition en matière plastique recyclée
DE102007051939A1 (de) * 2007-10-29 2009-04-30 Achim Koenes Verfahren zur Herstellung von Transportpaletten aus Kunststoff
DE102008046770A1 (de) * 2008-09-11 2010-03-18 Polytec Automotive Gmbh & Co. Kg Direktcompoundieren von Naturfasern
GB2491604A (en) * 2011-06-07 2012-12-12 Coca Cola Co Natural Fibre Material

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57108161A (en) * 1980-12-24 1982-07-06 Iwao Hishida Composite resin composition
JPS644652A (en) * 1987-06-26 1989-01-09 Nanba Press Kogyo Kk Sisal-hemp-reinforced composite thermoplastic composition
DE4131337A1 (de) * 1991-02-02 1992-08-06 Huels Chemische Werke Ag Naturfasern enthaltende formmassen auf basis von ungesaettigten polyesterharzen und daraus erhaltene formkoerper
ATE166906T1 (de) * 1993-07-28 1998-06-15 Biotec Biolog Naturverpack Verstärktes biologisch abbaubares polymer
DE4408855B4 (de) * 1994-03-16 2007-05-10 Emda Foundation For Development Aid Acp-Eec Asbl Faserverstärkter, zelliger Kunststoff und Verwendung desselben
DK0687711T3 (da) * 1994-06-16 2002-09-02 Deutsch Zentr Luft & Raumfahrt Fiberkompositmateriale og fremgangsmåde til fremstilling deraf
DE19517763C2 (de) * 1995-05-15 2003-06-05 Rhodia Acetow Gmbh Formkörper aus Verbundmaterial auf der Basis von Celluloseacetat und verstärkenden natürlichen Cellulosefasern und dessen Verwendung
EP0765911A3 (fr) * 1995-09-26 1998-05-20 Bayer Ag Matières plastiques biodégradables renforcées
ES2130085B1 (es) * 1997-09-19 2000-03-01 Irausa Ing Sa Material compuesto cargado/reforzado con fibras agro-vegetales.
DE19815783A1 (de) * 1998-04-08 1999-10-14 Schock & Co Gmbh Faserverstärkter Kunststofformkörper
US5922379A (en) * 1998-05-05 1999-07-13 Natural Polymer International Corporation Biodegradable protein/starch-based thermoplastic composition

Non-Patent Citations (1)

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Title
See references of WO0194449A1 *

Also Published As

Publication number Publication date
WO2001094449A1 (fr) 2001-12-13
DE10027297A1 (de) 2001-12-06
US20030161973A1 (en) 2003-08-28
AU2001262302A1 (en) 2001-12-17

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