EP0020672B1 - Fasermaterial und verfahren zu seiner herstellung - Google Patents

Fasermaterial und verfahren zu seiner herstellung Download PDF

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Publication number
EP0020672B1
EP0020672B1 EP80900011A EP80900011A EP0020672B1 EP 0020672 B1 EP0020672 B1 EP 0020672B1 EP 80900011 A EP80900011 A EP 80900011A EP 80900011 A EP80900011 A EP 80900011A EP 0020672 B1 EP0020672 B1 EP 0020672B1
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EP
European Patent Office
Prior art keywords
fibres
metal oxide
treated
acylate
cellulose
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.)
Expired
Application number
EP80900011A
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English (en)
French (fr)
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EP0020672A1 (de
Inventor
Kjeld Holbek
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KJELD HOLBEK APS
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KJELD HOLBEK APS
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Filing date
Publication date
Priority to AT80900011T priority Critical patent/ATE6435T1/de
Application filed by KJELD HOLBEK APS filed Critical KJELD HOLBEK APS
Publication of EP0020672A1 publication Critical patent/EP0020672A1/de
Application granted granted Critical
Publication of EP0020672B1 publication Critical patent/EP0020672B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D06M2101/12—Keratin fibres or silk
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/22—Polymers or copolymers of halogenated mono-olefins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/50—Modified hand or grip properties; Softening compositions

Definitions

  • the present invention relates to the production of substantially discrete metal oxide acylate-treated fibres and to the use thereof; more particularly, it relates to such a process wherein the fibres are dried and are treated with a metal oxide acylate prior to, during or subsequent to dry-defibration.
  • GB-A-1604910 describes a process for impregnating cellulose fibres and fields of application of these impregnated fibres, especially the use of the fibres as reinforcing fibre element in composite materials based on organic or inorganic binders or a combination of organic and inorganic binders.
  • the fibres in question may be discrete fibres or fibre bundles or "coarser” materials, such as wood vlies or wood wool.
  • the effect obtained by treating the fibres in question with metal oxide acylates in accordance with the present invention is supposed to result primarily from the chemical reaction between reactive groups on the fibre surfaces and the metal oxide acylates, secondarily from the metal acylate groups fixed on the fibre surface by the reaction.
  • the effect obtained in the case of cellulose fibre is particularly interesting.
  • This effect can be described as a stabilization of the cellulose fibre towards influence from the surroundings on a number of fibre properties.
  • This stabilization includes a number of properties, and, according to the particular choice of metal oxide acylate, manifests itself in a blocking of the water absorption, an increase in the alkali resistance, an increase in rigidity, thermal stability, rot resistance and a decrease in inflammability and obtaining of antistatic properties.
  • both cellulose fibres and synthetic fibres When treated with metal oxide acylates in accordance with the present invention both cellulose fibres and synthetic fibres will obtain a considerable improvement of the ability to disperse in water or solvents and a considerably increased coupling effect towards both organic and inorganic binders, which is of decisive importance when using the fibres in composite materials.
  • modified fibres may replace usually applied mineral fibres, such as asbestos.
  • Cellulose fibres treated with metal oxide acylates in accordance with the present invention may be used in composite materials as a substitute for not only asbestos, but also glass wool, mineral fibres of the rock wool type, slag wool, kaolin wool, etc., but they are also advantageously applicable in composite materials already containing cellulose-based materials, e.g. paper and cardboard, and thus add new and improved properties to these materials.
  • mineral fibres treated with metal oxide acylates in accordance with the present invention also show improved properties when incorporated in composite materials, as their ability to become defibrated and uniformly dispersed in the final composite material has been found to be dramatically increased when they are treated with the metal oxide acylates in the present manner.
  • One of the most important improvements ascertained in the cellulose fibres treated with suitable metal oxide acylates in accordance with the present invention is a blocking or hindrance in the reaction of the fibre towards water.
  • Cellulose fibres are hygroscopic per se, and on water absorption primarily an increase of volume caused by swelling occurs, which will result in disadvantageous internal material tensions in a composite material.
  • composite materials containing such fibres obtain correspondingly improved material properties.
  • the treated fibres per se may also be used directly, e.g. as insulating material in cavities or as stuffing in pillows, bedding, etc.
  • metal oxide acylates are a class of compounds invented by Dr. Jacobus Rinse and e.g. described in Belgian patent No. 555,969, Dutch patent No. 104,261, US Patents Nos. 3,987,949, 3,243,447, 3,177,238, 3,518,287, 3,625,934, 3,546,262, 3,346,674 and 3,673,229, Belgian patent No. 735,548 and British patents Nos. 1,230,412 and 1,274,718.
  • US Patent No. 3,087,949 relates to metal oxide acylates of tetravalent metals, such as zirconium and tin, and states that they have surface active properties and that some of them are also useful for water-proofing and as driers for paints.
  • Example 1 relates to the preparation of a zirconium oxide stearate and states that the product has excellent water-proofing for textiles.
  • US Patent No. 3,296,242 relates to metal oxide acylates containing at least one trivalent element selected from aluminium and boron and at least one divalent metal, in other words, combined metal oxide acylates.
  • This reference states that the products have outstanding pigment and surface-wetting characteristics and are useful in surface-coatings, metal lubricants, elastomers and plastic compositions.
  • Example 20 states that a 2 per cent solution of aluminium-zirconium compound is used to water-proof cotton and is found to give good results in water-proofing and in resistance to dry cleaning.
  • US Patent No. 3,546,262 relates to the preparation of divalent metal oxide acylates from virtually any divalent metal or combination of two such metals ans states that these metal oxide acylates are soluble in numerous organic solvents, with which liquid solutions containing from 60 to 90 percent, by weight, solids have frequently been obtained. When such solutions are applied to a solid substrate, they dry to tack-free, glossy protective coatings having excellent adherence.
  • Example 1 relates to a copper compound of this type and states that the product is a preservative for wood and burlap bags.
  • Example 11 states that a zinc compound is useful as a wood preservative.
  • Example 14 states that various compounds are useful as coating materials for glass fibres.
  • US Patent No. 3,673,229 relates to mixed metal oxide acylates of trivalent and divalent metals and states that the products are useful as resin additives, fungicides, anti-corrosives and colourants.
  • Examples 16 and 21 state that the respective products are useful as preservative stain for wood.
  • Example 22 states that a similar compound (zinc-chromium compound) is useful as a wood preservative and anti-corrosive.
  • the metal oxide acylates comprise a large group of substances, as both metal and acylate groups may be varied within a wide range.
  • the general composition of the metal oxide acylates is supposed to be
  • the metal oxides tend to react with OH groups and other reactive groups present as free groups on the fibre surfaces.
  • the reaction rate is supposed to decrease with increasing complexity of the molecular structure so that the metal oxide acylates of tetravalent metals require higher temperatures or more time in order to obtain reaction.
  • the desired effects of the end product and the effects on the processing properties of the fibres when treated with the metal oxide acylate are to be considered. This may be illustrated by the treatment of cellulose fibre, as a suitable choice of the combination of metal and acylate residue in the metal oxide acylate may confer a number of further properties besides the obtainment of cellulose fibres which are easily dispersible and have an effective coupling to binders.
  • a suitable choice of the combination of metal and acylate residue in the metal oxide acylate may confer a number of further properties besides the obtainment of cellulose fibres which are easily dispersible and have an effective coupling to binders.
  • fire resistance may be obtained by using aluminium or iron oxide phthalates or metal oxide acylates wherein the metal is antimony, Zn- or Cu-oxide acylates provide rot resistance, Mg- and Fe-containing oxide acylates will usually increase to antistatic properties of the fibres, and titanium oxide phthalate will increase the rigidity of the fibres, while the use of styrene modified aliphatic acids in the acylate residue results in an improvement of the alkali-resistance of the fibres.
  • metal oxide acylates containing titanium show a considerably higher effect with respect to hydrophobization that other metal oxide acylates which make them applicable in considerably smaller concentrations and thus permit admixture of other metal oxide acylates in order to obtain combination effects.
  • desired properties are e.g.: when the end product to be produced with the treated fibre is a composite material for electrical insulation, a minimization of the water sensitivity of the fibres is desired, whereas it would be advantageous with a moderate water absorption, when the fibres are to be used in connection with inorganic binders such as e.g. cement or plaster.
  • a possible explanation of the rot resistance-improving effect, which the metal oxide acylates impart to organic fibres including cellulose fibres, may be that the free alcohol groups on the surface of the native cellulose fibres play an important part in the initiation of both the bacterial and fungal deterioration mechanism, and that such free alcohol groups are blocked when the fibres are treated with a metal oxide acylate in accordance with the present invention.
  • a pre-treatment of the fibres with other types of wood impregnation or a treatment of the fibres with other types of wood impregnation together with the present treatment with metal oxide acylates does not seem to influence the effect of the metal oxide acylate treatment.
  • a treatment with e.g. paraffin with a treatment with e.g. aluminium oxide stearate as these two treatment agents were applied from the same solution.
  • a treatment with metal oxide acylate in accordance with the present invention with simultaneous application of a polymer, e.g. a polyolefin, applied from the same solution.
  • Chlorinated paraffins and other materials of the wax type may also be combined with the metal oxide acylates and be applied on fibres from the same solution in accordance with the present invention.
  • cellulose fibres may be pre-treated with inorganic compounds, e.g. inorganic wood preservation agents, especially the so-called "CZC”, “CCZC” and “CCA” types, and thereafter successfully be treated with metal oxide acylate in accordance with the present invention, these cases, however, requiring an intermediate removal of water provided this has been used when impregnating with an inorganic preservation agent.
  • inorganic compounds e.g. inorganic wood preservation agents, especially the so-called "CZC”, “CCZC” and “CCA” types
  • the amount of metal oxide acylate usually to be used in accordance with the present invention in order to obtain the desired effect is normally within the range of 0.5-8% by weight of metal oxide acylate, calculated on the weight of the fibre, as in many cases a sufficient effect is obtained when adding between 1 and 4% by weight, calculated on the fibre.
  • the treatment of fibre materials with metal oxide acylates in accordance with the present invention comprises a reaction with the metal oxide acylate on active groups on the fibre surface, and it is therefore usual to treat discrete fibres or fibre bundles instead of treating coherent fibre materials such as sheets, rolls, etc.
  • Synthetic organic and inorganic fibres and animal fibres will normally be in the desired discrete form already from the producer, but this is not always the case with cellulose fibres.
  • the cellulose fibres may e.g. be in the form of compact pulps such as raw cardboard from the wood cellulose manufacture or recycled cardboard and paper or semi-compact pulps such as the so-called "flash-dry" fibre from the wood cellulose production or as rags.
  • the starting material In such cases where the starting material is present in such a coherent or semi-coherent form the starting material must be submitted to a dry-defibration process.
  • a dry-defibration process may be performed according to known methods wherein the starting material is transformed into loose fibres by defibration in an impact mill or hammer mill.
  • the dry defibration may be immediately combined with a treatment with a metal oxide acylate in accordance with the present invention, as the heat developed during the mechanical treatment may serve partly to dry out the cellulose fibres to the desired degree and partly to keep the temperature at a level where the reaction between the fibre surface and the metal oxide acylate proceeds rapidly, at the same time while the elevated temperature contributes to evaporation of the solvent in which the metal oxide acylate is applied.
  • the metal oxide acylate when, for example, a cellulose material is dry defibrated, the metal oxide acylate may also be applied immediately before the dry defibration, as the immediately subsequent mechanical treatment and temperature increase result in the fact that the fibres obtain the necessary dryness and the temperature necessary for the reaction with the metal oxide acylate.
  • the temperatures which are preferred for obtaining the reaction between the fibres and the metal oxide acylate will depend on the identify of the metal oxide acylate. Aluminium oxide stearate, for example, reacts reasonably rapidly already at temperatures between 20 and 40°C, while oxide acylates of titanium require a higher reaction temperature in the range of 40-80°C. In principle, any elevated temperature of up to about 200°C may be used, as the metal oxide acylates are perfectly capable of withstanding these temperatures, and thus it is often the temperature resistance of the fibres which is decisive for the temperature at which the present treatment is to take place.
  • the metal oxide acylates may be applied e.g. by spraying while the fibres are in airborne condition immediately subsequent to the dry defibration in accordance with the present invention.
  • the amount of solution and its concentration is adapted to the desired degree of reaction, i.e. the amount of metal oxide acylate which it is desired to apply on the fibre.
  • the solvent is suitably a hydrocarbon or a chlorinated hydrocarbon which, for application in liquid phase, has suitably a boiling point which is higher than the reaction temperature at which the coupling process proceeds.
  • a hydrocarbon or a chlorinated hydrocarbon which, for application in liquid phase, has suitably a boiling point which is higher than the reaction temperature at which the coupling process proceeds.
  • the fibres treated with metal oxide acylate in accordance with the present invention and optionally other agents may then in the usual way be incorporated in composite materials with inorganic or organic binder, and in this process it has been found that they are defibrated much more easily than corresponding fibres which have not been treated with metal oxide acylate.
  • the composite material in question may be of the same kind as the materials described in GB-A-1604910.
  • the present metal oxide acylate-treated fibres have been found to be distributed in the ideal uniform way, also in large concentrations, in contrast to the non-uniform distribution, often with lumps of non-defibrated material, which is often characteristic to the same materials when they have not been treated with metal oxide acylate in accordance with the present material.
  • the preparation of composite materials using fibres produced in accordance with the present invention is carried out in any known way for preparing such composite materials.
  • the composite material is prepared by wet defibration of the present metal oxide acylate-treated fibres and combination with an inorganic binder, it has been found to be suitable to flocculate the fibres together with the inorganic binder using a flocculating agent, e.g. a flocculating agent of the cationic type such as Prodefloc C1, which is a polyacrylamide product having attached quaternary ammonium groups. It has been found that when using the treated fibres a perfect "precipitation" of e.g.
  • the fibres treated according to the invention may also be used as a substitute for mineral fibres in the composite materials described in GB-A-1597369 and applications in other countries which claim priority from Danish patent application No. 5436/76.
  • any suitable impregnation method mentioned in GB-A-1 604910 may be used, also including pressure impregnation and pressure/vacuum impregnation, and a dry defibration process may e.g. be combined with a pressure/vacuum impregnation by means of a suitable embodiment of a closed apparatus.
  • the reaction between the titanium oxide acylate and the fibres and drying out of the fibres is carried out by keeping the fibres at 100°C for 12 hours.
  • the resulting fibres are loose and cotton-like.
  • Paper sheets are prepared from the fibres in a laboratory sheet former.
  • the amounts of applied treatment agent and the test results appear from below table:
  • the materials prepared according to tests 1--4 are felt-like without strength, strongly water-repellent and only moderately swelling when immersed in a 2N sodium hydroxide solution.
  • the materials prepared according to tests 5-6 show almost normal strength, moderate water repellence and moderate swelling.
  • a hammer mill equipped with a feeder with adjustable feeding rate designed for supplying cellulose pulp in the form of webs is used for the treatment, an application device for the treatment medium having been placed immediately in front of the feeder.
  • the applicatioin apparatus is an "AirLess" flat spraying nozzle mounted in such a distance from the pulp web that the fan-shaped jet just moistens the web.
  • the supply of treatment medium is controlled by adjustment of the dosage from the nozzle and the rate of pulp supply.
  • the admixture of the treatment chemicals is a considerable advantage when carrying out the dry defibration process. This advantage especially appeared in that the treated fibres had a considerably smaller content of cellulose dust compared to the untreated fibres - a fact that is observed immediately when handling the fibres.
  • the immediate effect of the treatment of the cellulose fibres is a reduction of the reaction of the cellulose fibres to water.
  • the measurements used are determination of the shrinkage of the paper sheets, i.e. its longitudinal change at the transition from completely moistened to dry condition.
  • the modified cellulose fibres described in Example 2 are used in these examinations.
  • composition and preparation method are used in the fibre-cement experiments:
  • the amount used corresponds to one sheet with a dimension of 200 x 80 x 8 mm 3.
  • a "Braun” blender with 3 speeds is used as a mixing machine. Cement and water are mixed, whereafter fibre is added within 1 minute, and the mixing is continued for 2 minutes.
  • a flocculation agent 10 ml of a solution (0.2%) of Prodefloc C1, is then added, and the mixing is continued for a further 0.5 minute.
  • the mixture is transferred to a filter box with the length/width-dimensions of the sheet to be obtained. After filtering off the water the filter cake is transferred to a form and compressed to the final thickness without further draining of water. It was noted that the filtered water is clear without contents of cement particles.
  • the compressed sheets are cured at room temperature and 100% relative humidity for 2 weeks, whereafter the sheets were air dried.
  • the bending strength of the produced sheets was examined in both air dried condition and wet condition, the wet condition being obtained by immersing the air dried sheets in water for 48 hours.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Treatment Of Fibers During Manufacturing Processes (AREA)

Claims (10)

1. Verfahren zur Herstellung von im wesentlichen diskreten, mit Metalloxidacylat behandelten Fasern, dadurch gekennzeichnet, daß die Fasern getrocknet und mit einem Metalloxidacylat behandelt werden vor, während oder nach der Trocken-Defibrierung.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Trocken-Defibrierung in einer Hammermühle durchgeführt wird.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die getrockneten Fasern vor derTrocken-Defibrierung mit dem Metalloxidacylat behandelt werden.
4. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die getrockneten Fasern nach der Trocken-Defibrierung, während sie in der Luft schweben, mit dem Metalloxidacylat behandelt werden.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Trocknung durch Erhitzen bis zur Gewichtskonstanz durchgeführt wird.
6. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Trocknung durch azeotrope Destillation mit einem Kohlenwasserstoff durchgeführt wird.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Metalloxidacylat ein Aluminiumoxidacylat oder ein Titanoxidacylat ist.
8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Fasern anorganische Fasern oder Cellulosefasern sind.
9. Im wesentlichen diskrete, mit Metalloxidacylat behandelte Fasern, hergestellt nach einem Verfahren nach einem der Ansprüche 1 bis 8.
10. Verwendung der im wesentlichen diskreten, mit Metalloxidacylat behandelten Fasern gemäß Anspruch 9 in Verbundmaterialien.
EP80900011A 1978-12-01 1980-06-17 Fasermaterial und verfahren zu seiner herstellung Expired EP0020672B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80900011T ATE6435T1 (de) 1978-12-01 1979-11-30 Fasermaterial und verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK5478/78 1978-12-01
DK547878A DK547878A (da) 1978-12-01 1978-12-01 Fibermateriale

Publications (2)

Publication Number Publication Date
EP0020672A1 EP0020672A1 (de) 1981-01-07
EP0020672B1 true EP0020672B1 (de) 1984-02-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP80900011A Expired EP0020672B1 (de) 1978-12-01 1980-06-17 Fasermaterial und verfahren zu seiner herstellung

Country Status (7)

Country Link
EP (1) EP0020672B1 (de)
JP (1) JPS56501372A (de)
DE (1) DE2966739D1 (de)
DK (1) DK547878A (de)
FI (1) FI64664C (de)
NO (1) NO793920L (de)
WO (1) WO1980001176A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152551A (zh) * 2015-10-10 2015-12-16 中材科技股份有限公司 一种超细高硅氧玻璃纤维棉的制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004271A1 (en) * 1981-06-03 1982-12-09 Holbek Kjeld A method for treating a fibrous material and a plant for carrying out the method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE573723A (de) * 1957-12-10
US3087949A (en) * 1960-04-04 1963-04-30 Rinse Jacobus Oxide acylates and metal oxide r-oxides of tetravalent group iv metals
US3243447A (en) * 1960-10-31 1966-03-29 Rinse Jacobus Preparation of spacial tetrameric acyloxy group iv metal oxides
DE1252685B (de) * 1962-02-23 1967-10-26 Hardman & Holden Limited, Manchester, Lancashire (Großbritannien) Verfahren zum Herstellen von metallorganischen Verbindungen
US3546262A (en) * 1968-10-11 1970-12-08 Jacobus Rinse Divalent metal oxide acylates
US3673229A (en) * 1970-03-05 1972-06-27 Jacobus Rinse Metal oxide acylates and their preparation
DE2402661A1 (de) * 1973-01-24 1974-07-25 Gullhoegens Bruk Ab Verfahren zum verhindern chemischer angriffe auf mineralfasern bei fiberarmierung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152551A (zh) * 2015-10-10 2015-12-16 中材科技股份有限公司 一种超细高硅氧玻璃纤维棉的制备方法
CN105152551B (zh) * 2015-10-10 2017-12-12 中材科技股份有限公司 一种超细高硅氧玻璃纤维棉的制备方法

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EP0020672A1 (de) 1981-01-07
JPS56501372A (de) 1981-09-24
WO1980001176A1 (en) 1980-06-12
NO793920L (no) 1980-06-03
FI793781A (fi) 1980-06-02
DK547878A (da) 1980-06-02
FI64664B (fi) 1983-08-31
DE2966739D1 (en) 1984-04-05
FI64664C (fi) 1983-12-12

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