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FI84843C - Process for producing fiber-reinforced raw material for plastics - Google Patents

Process for producing fiber-reinforced raw material for plastics Download PDF

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Publication number
FI84843C
FI84843C FI892355A FI892355A FI84843C FI 84843 C FI84843 C FI 84843C FI 892355 A FI892355 A FI 892355A FI 892355 A FI892355 A FI 892355A FI 84843 C FI84843 C FI 84843C
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FI
Finland
Prior art keywords
web
fiber
fibers
raw material
matrix
Prior art date
Application number
FI892355A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI892355A (en
FI84843B (en
FI892355A0 (en
Inventor
Kay Roekman
Paul Saris
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to FI892355A priority Critical patent/FI84843C/en
Publication of FI892355A0 publication Critical patent/FI892355A0/en
Priority to PCT/FI1990/000131 priority patent/WO1990014457A1/en
Publication of FI892355A publication Critical patent/FI892355A/en
Application granted granted Critical
Publication of FI84843B publication Critical patent/FI84843B/en
Publication of FI84843C publication Critical patent/FI84843C/en

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Reinforced Plastic Materials (AREA)
  • Nonwoven Fabrics (AREA)

Description

1 848431 84843

MENETELMÄ KUITULUJITTEISEN MUOVIRAAKA-AINEEN VALMISTAMISEKSIMETHOD OF MANUFACTURING A FIBER-REINFORCED PLASTIC RAW MATERIAL

Tämä keksintö koskee menetelmää kuitulujitteisen muovima-5 teriaalin valmistamiseksi kuivalla rainausmenetelmällä.The present invention relates to a process for producing a fiber-reinforced plastic material by a dry webbing process.

Kuitulujitteisia materiaaleja valmistettaessa on ongelmana usein lujittavien kuitujen kimppuisuus, jolloin kuitukimppu ei ole täysin aukaistu matriisin sisään ja kuitujakauma on 10 epätasainen. Kuituraina valmistetaan useimmiten muodostamalla vesidispersio lujitekuiduista ja hiukkasmaisesta muovi-materiaalista ja suotauttamalla vesi pois. Tämän märkäpro-sessin haittana on usein kytkentäkemikaalien huuhtoutuminen pois esikäsitellyistä kuiduista dispergointivaiheessa.A problem with the manufacture of fiber-reinforced materials is often the bundle of the reinforcing fibers, whereby the fiber bundle is not fully opened into the matrix and the fiber distribution is uneven. The fibrous web is most often made by forming an aqueous dispersion of reinforcing fibers and particulate plastic material and filtering off the water. The disadvantage of this wet process is often the leaching of the coupling chemicals away from the pretreated fibers during the dispersion step.

15 Tämän keksinnön tarkoituksena on tällaisten epäkohtien välttäminen. Parannettu kuitujakaumarata voidaan tehdä kuivamenetelmällä siten, että kuitu aukaistaan karstaamalla, jolloin saadaan aikaan avoin, huokoinen, bulkkinen 20 rata. Kuivaprosessin ansiosta voidaan kuitujen kemikaa-linen käsittely valita laajemmin kuin märkäprosesseilla eri matriiseille sopivaksi, koska ei ole vaarana kytkentäkemikaalien poishuuhtoutuminen.It is an object of the present invention to avoid such drawbacks. The improved fiber distribution path can be made by the dry method so that the fiber is opened by carding to provide an open, porous, bulk web 20. Thanks to the dry process, the chemical treatment of the fibers can be chosen more widely than with the wet processes to suit different matrices, because there is no risk of leaching off the coupling chemicals.

25 Esillä olevan keksinnön mukaisella menetelmällä saadaan tuote, joka on homogeenisempi ja jolla on paremman kytkennän ansiosta edullisemmat mekaaniset ominaisuudet kuin tavanomaisilla menetelmillä valmistetuilla tuotteilla.The method of the present invention provides a product that is more homogeneous and has more favorable mechanical properties due to better coupling than products made by conventional methods.

30 Esillä olevan keksinnön mukaiseen menetelmään kuuluvat seuraavat vaiheet: - kuidun aukaisu karstauksella - radan muodostus karstaamalla avatuista kuiduista - jauhemaisen matriisin annostelu muodostetulle radalle 35 - radan kerrosten taittaminen päällekkäin 2 84843 - kerrostetun radan kuumentaminen, puristaminen ja jäähdyt täminenThe method according to the present invention comprises the following steps: - opening the fiber by carding - forming a web from the fibers opened by carding - applying a powdered matrix to the formed web 35 - folding the web layers on top of each other 2 84843 - heating, pressing and cooling the layered web

Lujittavana kuituna käytetään yleensä lasikuitua. Lasikui-5 tujen käsiteltävyyttä voidaan parantaa sekoittamalla niiden joukkoon synteettisiä orgaanisia kuituja, jolloin koneen sisäiset radansiirrot helpottuvat. Synteettiset kuidut voidaan valita sellaisiksi a) että ne koostuvat samasta polymeeristä kuin matriisiaine, 10 jolloin ne kuumennettaessa sulavat tähän ja yhdessä muodostavat matriisin. Sopivia ovat esim. polypropeeni, polyesteri ja polyamidi b) että ne eivät kuumennettaessa sula vaan ne muodostavat lasikuidun kanssa komposiitin lujittavan osasen. Sopivia 15 ovat esim. aramidikuitu, hiilikuitu tai käytettävää matrii-siainetta huomattavasti korkeamman sulamispisteen omaava kuitu, esim. polyesterikuitu polypropeenimatriisissa.Glass fiber is usually used as the reinforcing fiber. The processability of glass fibers can be improved by mixing synthetic organic fibers with them, thus facilitating in-machine track transfers. The synthetic fibers can be selected such that a) they consist of the same polymer as the matrix material, whereby when heated they melt here and together form a matrix. Suitable are, for example, polypropylene, polyester and polyamide b) that they do not melt when heated but form a reinforcing part of the composite with the glass fiber. Suitable are, for example, aramid fiber, carbon fiber or a fiber having a significantly higher melting point than the matrix material used, e.g. polyester fiber in a polypropylene matrix.

Kuidut voidaan käsitellä etukäteen esim. peroksidellla, 20 jolloin ne käyttäytyvät muokattaessa matriisin juoksevuutta parantaen ja tuotteelle saadaan entistä parempi pinta.The fibers can be pre-treated, e.g. with peroxide, in which case they behave when shaping, improving the flowability of the matrix and giving the product an even better surface.

Keksintöä kuvataan yksityiskohtaisemmin viittaamalla oheiseen kaaviokuvaan.The invention will be described in more detail with reference to the accompanying diagram.

2525

Katkolasi ja synteettinen kuitu annostellaan hihnavaa'alla 1 ja alkukarstataan repijällä 2. Kuidut siirretään puhaltimelle 3 sekoitussäiliöön 4, jossa ne sekoitetaan ilmavirralla eli homogenisoidaan ja neliöpaino säädetään. Tämän 30 jälkeen kuidut aukaistaan edelleen tekstiili-nonwoven-karstauskoneella 5. Käsitellyistä kuiduista muodostetaan rata 6 tasoviiralle. Radan muodostuksen jälkeen annostellaan jauhemainen matriisi 7 jokaisen kuiturainakerroksen väliin käyttäen tarpeen vaatiessa täryä. Radan neliöpaino määri-35 tetään kohdassa 13. Kone kerrostaa taittamalla taittoyk-sikössä 8 ohuet kerrokset päällekkäin, jolloin saavutetaan 3 84843 haluttu neliöpaino ja matriisi 7 jakautuu syvyyssuunnassa tasaisesti. Tämä rata kuumennetaan esim. kaksoisviirapuris-timella 11 matriisin sulamispisteen yläpuolelle esim. polypropeeni 190-200 eC tai polyamidi n. 300 eC. Sitten 5 rata puristetaan ja jäähdytetään paineen alla sekä leikataan halutun kokoisiksi levyiksi (12), joita voidaan muokata halutuiksi luj itemuovituotteiksi.The stem glass and synthetic fiber are dispensed with a belt scale 1 and initially carded with a shredder 2. The fibers are transferred to a fan 3 in a mixing tank 4, where they are mixed with a stream of air, i.e. homogenized and the basis weight is adjusted. Thereafter, the fibers are further opened on a textile nonwoven carding machine 5. The treated fibers are formed into a web 6 on a flat wire. After the formation of the web, a powdery matrix 7 is dispensed between each layer of fibrous web, using vibration if necessary. The basis weight of the web is determined in step 13. The machine layers by folding the thin layers on top of each other in the folding unit 8, whereby the desired basis weight of 3,84843 is reached and the matrix 7 is evenly distributed in the depth direction. This web is heated e.g. with a double wire press 11 above the melting point of the matrix e.g. e.g. polypropylene 190-200 eC or polyamide about 300 eC. The track 5 is then compressed and cooled under pressure and cut into sheets (12) of the desired size, which can be formed into the desired high-strength plastic products.

Levittämällä ennen puristinta 11 ekstruuderilla filmi, 10 joka on samaa polymeeriä kuin matriisi, tai rullasta valmis filmi (9, 10) ja kuumentamalla radan kanssa yhtäaikaa puristimessa 11 saadaan kuituvapaa kerros, joka edistää hyvän, tasaisen pinnan aikaansaamista. Samaan kohtaan tai jo radanmuodostuksen jälkeen voidaan syöttää ns. roving-15 lankoja tai -kudoksia ratakerroksien väliin sekä eri kuituratoja, esim. sähköä johtavista kuiduista tehtyä rataa.Prior to the press 11, a film 10 which is the same polymer as the matrix or a roll-finished film (9, 10) is applied by an extruder and heated simultaneously with the web in the press 11 to obtain a fiber-free layer which promotes a good, even surface. At the same point or already after track formation, the so-called roving-15 yarns or fabrics between web layers as well as various fibrous webs, e.g., a web made of electrically conductive fibers.

Lasikuidun pituus on edullisesti 8-30 mm ja karstauksessa saadaan aikaiseksi 50-200 g m*2 huokoinen rata.The length of the glass fiber is preferably 8-30 mm and the carding provides a 50-200 g m * 2 porous web.

2020

Synteettisiä, orgaanisia kuituja lisätään lasikuitujen sekaan 5-20 p-%.Synthetic organic fibers are added to the glass fibers in an amount of 5-20% by weight.

Jauhemaista matriisia lisätään jokaisen kuiturainakerroksen 25 väliin oikeaan painosuhteeseen, normaalisti 80-50 % kokonaispainosta. Tähän tarkoitukseen ovat sopivia kaikki kestomuovit.The powdered matrix is added between each layer of fibrous web 25 in the correct weight ratio, normally 80-50% of the total weight. All thermoplastics are suitable for this purpose.

Taittoyksikössä saadaan tuotteelle haluttu neliöpaino, 30 esim. 2000-4000 g m"2.The folding unit gives the desired basis weight for the product, 30 e.g. 2000-4000 g m "2.

Esillä olevan keksinnön mukaisella menetelmällä on tuloksena lujitettu kestomuovilevy, jossa on edullinen kuitu jakautuma. Kuitujen suhteellisesta lyhyydestä johtuen kuidut kulkevat 35 muokattaessa juoksevan matriisin kanssa vaikeisiinkin 4 84843 muotoihin, kuten vahvistusrivat, joissa tarvitaan kuitujen antamaa lujuutta.The method of the present invention results in a reinforced thermoplastic sheet with a preferred fiber distribution. Due to the relative shortness of the fibers, the fibers travel 35 with the flowable matrix to form even 4,84843 shapes, such as reinforcing ribs, where the strength provided by the fibers is required.

Esim.E.g.

5 12 mm pituisia lasikuituja, joihin on lisätty 10 p-% polypropeenikuituja käsitellään karstauskoneella. Radan muodostuksen jälkeen sirotellaan radalle polypropeeni jauhetta, jolloin lujitekuidun osuudeksi tulee 30 p-%. Sitten radan ohuet kerrokset taitetaan päällekäin, jolloin mas-10 sapainoksi tulee 3000 g m*2 . Tämä rata kuumennetaan 190 °C:een ja puristetaan 2 bar paineella ja jäähdytetään sekä leikataan halutun kokoisiksi arkeiksi, joista muokataan haluttuja tuotteita, joiden vetolujuus on 90 MPa, murtovenymä 2,5 %, iskulujuus 55 charpy, taivutuslujuus 140 N 15 mm*2, venytysmoduuli 4500 N mm"2 ja taivutusmoduuli 5500 N mm"2 . Rata voidaan päällystää myös polypropeeni foliolla, jos halutaan erittäin tasainen pinta.5 12 mm long glass fibers to which 10% by weight of polypropylene fibers have been added are treated with a carding machine. After the formation of the web, polypropylene powder is sprinkled on the web, whereby the proportion of reinforcing fiber becomes 30% by weight. The thin layers of the track are then folded over to give a mass weight of 3000 g m * 2. This track is heated to 190 ° C and pressed at 2 bar and cooled and cut into sheets of the desired size, from which the desired products with a tensile strength of 90 MPa, elongation at break of 2.5%, impact strength of 55 Charpy, bending strength of 140 N 15 mm * 2, stretching modulus 4500 N mm "2 and bending modulus 5500 N mm" 2. The web can also be coated with polypropylene foil if a very smooth surface is desired.

Claims (6)

1. Förfarande för tillverkning av ett fiberarmerat plasträ-material medelst ett torrförfarande, kännetecknat därav, 5 att förfarandet innefattar steg, i vilka - armeringsfibern uppsläs genont kardning - en bana bildas av de genora kardning uppslagna armerings-fibrerna - en pulverformig termoplastmatris doseras pä den bildade 10 banan - skikt av banan viks pä varandra - den skiktade banan upphettas, sammanpressas och avkyls.A method of manufacturing a fiber-reinforced plastic raw material by a dry process, characterized in that the process comprises steps in which - formed the web - layers of the web are folded on each other - the layered web is heated, compressed and cooled. 2. Förfarande enligt patentkravet 1, kännetecknat därav, 15 att den skiktade banan lamineras.Method according to Claim 1, characterized in that the layered web is laminated. 3. Förfarande enligt patentkravet 1, kännetecknat därav, att armeringsfibern utgörs av glasfiber. 203. A method according to claim 1, characterized in that the reinforcing fiber is glass fiber. 20 4. Förfarande enligt patentkravet 3, kännetecknat därav, att glasfiberns längd är 8 - 30 mm.Method according to Claim 3, characterized in that the length of the glass fiber is 8 - 30 mm. * 5. Förfarande enligt patentkravet 3, kännetecknat därav, --· : att, utom glasfiber, används även syntetiska organiska : *.* 25 fibrer.5. Process according to claim 3, characterized in that, apart from fiberglass, synthetic organic fibers are also used. : 6. Förfarande enligt patentkravet 5, kännetecknat därav, att 5 - 20 % syntetiska fibrer tillsätts. liMethod according to Claim 5, characterized in that 5 - 20% synthetic fibers are added. li
FI892355A 1989-05-17 1989-05-17 Process for producing fiber-reinforced raw material for plastics FI84843C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI892355A FI84843C (en) 1989-05-17 1989-05-17 Process for producing fiber-reinforced raw material for plastics
PCT/FI1990/000131 WO1990014457A1 (en) 1989-05-17 1990-05-14 Method of manufacturing a fiber reinforced plastics material and a plastics material produced by the method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI892355A FI84843C (en) 1989-05-17 1989-05-17 Process for producing fiber-reinforced raw material for plastics
FI892355 1989-05-17

Publications (4)

Publication Number Publication Date
FI892355A0 FI892355A0 (en) 1989-05-17
FI892355A FI892355A (en) 1990-11-18
FI84843B FI84843B (en) 1991-10-15
FI84843C true FI84843C (en) 1992-01-27

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FI892355A FI84843C (en) 1989-05-17 1989-05-17 Process for producing fiber-reinforced raw material for plastics

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WO (1) WO1990014457A1 (en)

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CN1048532C (en) * 1992-08-11 2000-01-19 西摩远东有限公司 Method for manufacturing garment lining and stable fibrous lining produced therefrom
DE4306808A1 (en) * 1993-03-04 1994-09-08 Wacker Chemie Gmbh Crosslinkable dispersion powder as a binder for fibers
FR2743822B1 (en) * 1996-01-19 1998-03-20 Vetrotex France Sa PROCESS AND DEVICE FOR MANUFACTURING A COMPOSITE MATERIAL
DE19733133A1 (en) * 1997-07-31 1999-02-04 Wacker Chemie Gmbh Powdery, crosslinkable textile binder composition
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FI84843B (en) 1991-10-15
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