WO2017029325A1 - Matériau composite aimant-bois - Google Patents

Matériau composite aimant-bois Download PDF

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Publication number
WO2017029325A1
WO2017029325A1 PCT/EP2016/069514 EP2016069514W WO2017029325A1 WO 2017029325 A1 WO2017029325 A1 WO 2017029325A1 EP 2016069514 W EP2016069514 W EP 2016069514W WO 2017029325 A1 WO2017029325 A1 WO 2017029325A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
composite material
binder
wood
wood composite
Prior art date
Application number
PCT/EP2016/069514
Other languages
German (de)
English (en)
Inventor
Isolde PINK-KOSCHU
Manfred KOSCHU
Gerd Six
Original Assignee
Pink-Koschu Isolde
Koschu Manfred
Gerd Six
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 Pink-Koschu Isolde, Koschu Manfred, Gerd Six filed Critical Pink-Koschu Isolde
Publication of WO2017029325A1 publication Critical patent/WO2017029325A1/fr

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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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/092—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising epoxy resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/16—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor
    • 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/08—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/083—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together in a bonding agent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/09—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials mixtures of metallic and non-metallic particles; metallic particles having oxide skin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • H01F1/112—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles with a skin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • H01F1/113—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent

Definitions

  • the present invention relates to a magnetic-wood composite material and a method for producing this magnet-wood composite material, wherein on a base layer of wood or wood components, a binder material containing a magnetic material is applied as a layer, wherein after hardening and crosslinking of the applied binder mixture itself this layer with the base layer of wood or wood components inseparably connects, whereby the magnetic-wood composite material on at least one of the top surfaces has a two-dimensional magnetic effect.
  • the magnetic element surfaces are usually designed by adhering magnetic foils to a base body or by fixing iron surfaces on the base body when magnetic surfaces are to be produced.
  • Object of the present invention is therefore to describe a magnetic wood composite material and an associated manufacturing method, which excludes or at least minimizes the disadvantages mentioned above.
  • a magnet-wood composite material of the type mentioned is obtained by subjecting a wood body made of wooden parts base body with a magnetic mass, this undergoes several compression processes including special drying phases, followed by a cross-linking or curing step and finally the resulting magnetic wood composite material ultimately supplies a magnetization process.
  • the magnetic material is silanized before mixing with the binder, then dried to a Magnetmaterialkuch and then the silanized Magnetic material cake is subjected to a fractional sieving, whereby lump-free and non-re-caking magnetic material is obtained.
  • a magnet-wood composite material is created, which is characterized by a variety of applications, by flexible applicability, best mechanical properties and large-scale, dimension-independent usability.
  • the invention also has the advantage of a cost-effective manufacturing process and problem-free use in many technical and economic areas.
  • the magnet-wood composite material according to the invention makes it possible to create universally designable surface decoration with previously unattained advantages such as:
  • the surface treatment of the magnetic powder takes place in the present invention case by adhesion promoters from the group of amino and methoxydsilanes, wherein according to a
  • adhesion promoters provided in the experimental stage in terms of adhesion, coating, compatibility between magnetic powder. Resins and additives were particularly good results and were much more efficient than the titanates or zirconates also tested.
  • the magnetic material thus completed is wetted extensively with silane coupling agent from this point on and ready for addition to the binders.
  • the silanized magnetic material allows a chemical bond between substrate and binder, whereby product clumping is prevented and very strong adhesion between the magnetic mass components on the one hand and the base plate on the other hand is achieved by covalent bonds.
  • the clumping of the magnetic material no longer occurs even when using fine-grained magnetic powders or carbonyl iron formulations, even if moisture is used in formulations (H20 additive) or reaction water is formed.
  • the selection of the grain size of the magnetic material as a parameter of the magnetic mass of the present invention is essential and an independent development parameter thereof. It was determined that the best mechanical strength values and the highest adhesion to the magnetic coatings were measured. when in the magnetic mass, the magnetic powder had a grain spectrum of the following composition.
  • the inventive magnet-wood composite material allows the use of different binders or binder components.
  • the binders are also subjected to a pretreatment, preferably by silanization.
  • thermosets epoxy resins, polyamides, polyphenol sulfides, melamine resins, phenol-formaldehyde or urea resins.
  • Silanized resins or resin combinations are not prone to material buildup, can be well distributed and form covalent bridges that significantly improve the mechanical and chemical properties of the final products.
  • Silanized binders have an ideal effect, especially when the remaining components of a magnetic mass (magnetic powder, additives, possibly color pigments, etc.) have likewise been subjected to a silane treatment. It is then almost absolute compatibility of Kornkomponetten before whereby the magnetic wood composite material is universally applicable.
  • the properties of specific magnetic compositions can be considerably improved by adding reaction enhancers or crosslinking accelerators such as, for example, furfural or hexamethylenetetramine, since they facilitate the crosslinking reactions of thermosets up to the complete Resitgitteroul. This property makes it possible to use magnetic wood composites for outdoor use even in difficult climatic conditions.
  • glass fibers in amounts of 0.1 to 3% by weight to the magnetic mass.
  • carbon fibers and rock fibers are used. This inventive element in the bonds causes the Magentholzverbundtechnikstoff a much higher mechanical strength and prevents the distortion of the composite in outdoor use.
  • the glass fibers have a length of 0.3 to 0.5 mm and are added to the resin in the magnetic mass production.
  • the glass fibers can also be silanized.
  • D3 Elements for Viscosity Adjustment of the Magnetic Material Binder Mixture Depending on the magnetic mass applied to the base material of the magnetic wood composite material, such as by rolling, brushing, rolling, trowelling or spraying, the viscosity of the magnetic material must be adapted to the application method. Viscosity tuning is theoretically possible with H20. However, a wood glue solution with 20 to 30% by weight of glue has proven to be far more suitable. Because it can ensure a trouble-free Magentmass Published. D4 Elements for the reduction of radiation influences
  • the used in outdoor use magentholz composite material e require the addition of antioxidants to the magnetic masses to ensure the mechanical strength. Their amount used is between 0.2 and 3.0 wt.%
  • the magnetic powders used in the Magentholzverbundwerkstoffen are central components of the effective magnetic material. They have permanently permanent magnetic properties, the subgroups of the magnets suitable for the magnetic material are divided as follows and correspond to developments of the inventions:
  • Ferromagnets made of Co, Ni, CrO 2, Te, Sr, Ba, B.Y.
  • Rare Earth Magnets from Nd, Sm. Eu. Gd, Tb, Dy, Ho, Er, Yb.Pr,
  • Ferromagnetic alloys YCo5, SmCo5, SmCo l 7. Sm2Fe l 8N3, NdFel4B, Sm2 (Co, Fe, Cu, Zr,) 17, AINiCo,
  • Ceramic magnets are ferromagnetic, ceramic materials that are produced by a sintering process.
  • hard ferromagnetic ferrites are preferably used from the group of ferrites such as:
  • magent-wood composite material consists of at least one base part made of wood and / or an adequate mechanically stable material and at least one magnetically acting cover layer which are inseparably joined together according to the inventive manufacturing method
  • the base part of the composite material is preferably a pressboard or wood fiber board which is manufactured according to the prior art.
  • the magnetic material is now produced by rolling on, painting on. Roll up, spray on or apply by lolling.
  • the layer thicknesses of the magnetic mass are variable and can vary between 0.5 and 5 mm, it is also possible to apply 2 or more layers one above the other.
  • the magnetic mass which must consist of at least magnetic powder and binder contains in the production of magnetic wood composite materials always in addition mass components, preferably reaction accelerator, crosslinking accelerator, and lining reinforcing elements for viscosity adjustment of the magnetic mass.
  • a particularly important element of the invention is the pretreatment of the magnetic mass components, at least of the magnetic material and optionally also of the binder. It is described in points A to E and is an indispensable prerequisite for achieving the exceptional quality of the development product.
  • the individual recipe parameters are weighed in compliance with all pretreatment requirements.
  • the components are then poured into an intensive mixer (Drais etc.) and mixed until a smooth and lump-free paste is given.
  • defect-free magnetic coatings can be produced with the magnetic paste.
  • the magnetic composition thus obtained is subsequently applied to the base material by rolling, painting, rolling, spraying or by lolling.
  • the magnetic material covered base material is then introduced into a Vorverêtrpresse and heated there under minimum pressure to about 70 to 80 ° C.
  • the pre-compression press is heatable and has a notched cover plate. By means of these notches, the water of reaction or the resulting reaction gases (NH3) formed during the heating of the magnetic mass can be removed from the system.
  • the plastic mass plasticized in this state can now be subjected to a magnetic preorientation.
  • the hardness curves are designed between 140 and 180 ° C. Shock hardening works briefly up to 200 ° C.
  • the pressing pressure is between 80 and 600 kN / m 2 .
  • the pressing time is between 20min and 24 hours.
  • the magnetic wood composite material After cooling the entire system to room temperature, the system is subjected to magnetization. Thus, the magnetic wood composite material is ready for use.
  • the process sequence corresponds to that of recipe 1.
  • the manufacturing difference lies in the use of temperature during the pressing and curing processes.
  • the pre-compression is preferably carried out at room temperature (depending on the amount of hardening used).
  • the curing is carried out at high temperature. At 80 ° C for the curing process, a period of 60 minutes provided at 1 10 ° C it takes 15 minutes for complete crosslinking and thus curing.
  • the procedure for formulation 3 corresponds in principle to that of variant 1.
  • the tem perature at agm ent in manufacturing is also different here.
  • the temperature is kept at 70 ° C.
  • water of reaction and H20 of the wood glue solution are removed.
  • the magnetic wood blank comes in a heatable large press, where it is heated to 90 to 1 10 ° C and pressed at a pressure of 6 to 8 bar.
  • the magnet-wood composite plate manufactured in this way according to the invention is dimensionally stable and lightweight.
  • An additional advantage of this formulation is the fact that the magnetic coating is tear-resistant and exhibits low thermal expansion.
  • the addition of antioxidants also reduces the influence of external radiation and makes this magnetic wood composite particularly suitable for outdoor use.
  • the magnet-wood composite material according to the invention exhibits a flat magnetic effect on at least one cover surface.
  • Product and method of preparation are comprehensively described.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Dermatology (AREA)
  • Manufacturing & Machinery (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un matériau composite aimant-bois selon lequel un mélange de liants contenant un matériau magnétique est appliqué en tant que couche sur une couche de base composée de bois ou de constituants en bois. Après durcissage et réticulation du mélange de liants appliqué, cette couche est reliée de façon inséparable à la couche de base composée de bois ou de constituants en bois de telle manière que le matériau composite aimant-bois présente sur au moins une des surfaces de couverture un effet magnétique plan. Avant mélange avec le liant, le matériau magnétique est silanisé et séché de manière à former un gâteau de matériau magnétique, puis le gâteau de matériau magnétique silanisé est soumis à un tamisage fractionné de manière à obtenir un matériau magnétique exempt d'agglomérats et n'ayant pas tendance à reformer des agglomérats.
PCT/EP2016/069514 2015-08-18 2016-08-17 Matériau composite aimant-bois WO2017029325A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA542/2015 2015-08-18
ATA542/2015A AT517362B1 (de) 2015-08-18 2015-08-18 Magnet-Holz-Verbundwerkstoff

Publications (1)

Publication Number Publication Date
WO2017029325A1 true WO2017029325A1 (fr) 2017-02-23

Family

ID=56979510

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/069514 WO2017029325A1 (fr) 2015-08-18 2016-08-17 Matériau composite aimant-bois

Country Status (2)

Country Link
AT (1) AT517362B1 (fr)
WO (1) WO2017029325A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113115985A (zh) * 2019-11-15 2021-07-16 聚鼎科技股份有限公司 雾化装置及其雾化元件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2248773A1 (de) * 1972-10-05 1974-04-11 Hilmar Herzog Verfahren zur herstellung von ferrooder paramagnetischen geschichteten baukoerpern, insbesondere platten
CH608029A5 (en) * 1978-01-25 1978-12-15 Ernst Meyer Process for the preparation of a melting composition which, in bound form, firmly holds permanent magnet elements
JPH07135104A (ja) * 1993-11-10 1995-05-23 Tokin Corp 高分子複合型希土類磁石の製造方法
JP2011049404A (ja) * 2009-08-27 2011-03-10 Daido Electronics Co Ltd ボンド磁石の製造方法及びボンド磁石
EP2899727A1 (fr) * 2012-09-21 2015-07-29 Sumitomo Electric Industries, Ltd. Matériau composite, réacteur, convertisseur et dispositif de conversion d'énergie électrique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2248773A1 (de) * 1972-10-05 1974-04-11 Hilmar Herzog Verfahren zur herstellung von ferrooder paramagnetischen geschichteten baukoerpern, insbesondere platten
CH608029A5 (en) * 1978-01-25 1978-12-15 Ernst Meyer Process for the preparation of a melting composition which, in bound form, firmly holds permanent magnet elements
JPH07135104A (ja) * 1993-11-10 1995-05-23 Tokin Corp 高分子複合型希土類磁石の製造方法
JP2011049404A (ja) * 2009-08-27 2011-03-10 Daido Electronics Co Ltd ボンド磁石の製造方法及びボンド磁石
EP2899727A1 (fr) * 2012-09-21 2015-07-29 Sumitomo Electric Industries, Ltd. Matériau composite, réacteur, convertisseur et dispositif de conversion d'énergie électrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113115985A (zh) * 2019-11-15 2021-07-16 聚鼎科技股份有限公司 雾化装置及其雾化元件

Also Published As

Publication number Publication date
AT517362A4 (de) 2016-11-15
AT517362B1 (de) 2016-11-15

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