EP0310202A1 - Combinations of polyolefin filaments and yarns of low wetting and adhesive power and filaments and yarns of high wetting and adhesive power - Google Patents

Combinations of polyolefin filaments and yarns of low wetting and adhesive power and filaments and yarns of high wetting and adhesive power Download PDF

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Publication number
EP0310202A1
EP0310202A1 EP88202163A EP88202163A EP0310202A1 EP 0310202 A1 EP0310202 A1 EP 0310202A1 EP 88202163 A EP88202163 A EP 88202163A EP 88202163 A EP88202163 A EP 88202163A EP 0310202 A1 EP0310202 A1 EP 0310202A1
Authority
EP
European Patent Office
Prior art keywords
yarns
filaments
adhesive power
wetting
combination
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Withdrawn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
EP88202163A
Other languages
German (de)
French (fr)
Inventor
Peter Bruinink
Eric Henricus Maria Hogenboom
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of EP0310202A1 publication Critical patent/EP0310202A1/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins

Definitions

  • the present invention relates to combinations of polyolefin filaments and yarns having high tensile strengths and moduli and low wetting and adhesive power, in particular in respect of customary matrix materials, and filaments and yarns of high wetting and adhesive power.
  • Polyolefin filaments and yarns having high ten­sile strengths and high moduli have very poor wettability by and adhesion to hydrophilic materials, such as heat-­curing phenolic, epoxy, vinylester, polyester and acry­late resin based resins customarily used for producing composite materials, and also thermoplastics and rubber. For this reason they are not particularly suitable for producing composite materials without pretreatment.
  • hydrophilic materials such as heat-­curing phenolic, epoxy, vinylester, polyester and acry­late resin based resins customarily used for producing composite materials, and also thermoplastics and rubber. For this reason they are not particularly suitable for producing composite materials without pretreatment.
  • the polyolefin filaments and yarns of low wetting and adhesive power are those which have been produced by the gel process and subsequent high drawing.
  • This gel process which is described for example in DE Offenlegungsschrift 3,724,434 and also in GB-A-2,042,414 and -2,051,667, comprises essentially dissolving a poly­olefin in a solvent, moulding the solution at a temper­ature above the dissolving temperature of the polyolefin into a filament, cooling the filament, for gelling, to a temperature below the dissolving temperature and then drawing the gel filament with solvent removal, preferivelyably employing draw ratios of more than 20, in partic­ular more than 30.
  • the polyolefins used consist preferably of poly­ethylenes in particular linear polyethylenes, having an ultrahigh molecular weight of more than 600,000 g/mol (weight average of molecular weight). These polyethylenes may contain minor amounts preferably not more 5 mol %, of one or more other alkenes copolymerizable therewith, such as propylene, butylene, pentene, hexene, 4-methylpentene, octene etc.
  • the polyethylenes can have from 1 to 10, in particular 2 to 6, methyl or ethyl groups per 1,000 carbon atoms.
  • polystyrene resins for example polypropylene homopoly­mers and copolymers; furthermore, the polyolefins used may contain minor amounts of one or more other polymers in particular alkene-l-polymers.
  • polyolefin filaments having tensile strengths of more than 2 GPa and moduli of more than 60 GPa.
  • the filaments and yarns of high wetting and adhesive power consist preferably of glass, carbon, poly­amides or polyesters. However, it is also possible to resort to other filaments and yarns of high wetting and adhesive power in respect of the abovementioned materials.
  • the two filament and yarn types are combined by core spinning a filament or yarn of low wetting and adhesive power with a filament and/or a yarn of high wetting and adhesive power, or by twisting the two components.
  • the proportion of filaments or yarns of high wetting and adhesive power in relation to the proportion of filaments and yarns of low wetting and adhesive power is 10 to 50% by weight, in particular 15 to 30% by weight, particularly advantageously these pro­portions being about 25% by weight in the case of core spinning and about 15% by weight in the case of twist­ing.
  • Composite materials which have been produced using combinations according to the invention as reinforcing materials can be used for example to produce sport articles such as tennis rackets or golf clubs, boat hulls such as kayak or canoe boat hulls, antiballistic articles, helmets, high-pressure hoses etc.

Abstract

The invention relates to combinations of poly­olefin filaments and yarns having high tensile strengths and moduli and low wetting and adhesive power in partic­ular in respect of customary matrix materials as used for producing composite articles, and filaments and yarns of good wetting and adhesive power. These combinations combine to good tensile strength and modulus values of polyolefin filaments and yarns with high wettability by and adhesion to customary polymer matrix materials, the wetting and adhesive power being obtainable in a more economical manner than with the previously disclosed coating with coatings which enhance the wetting and adhesive power or with a corona or plasma treatment or a mechanical and/or chemical roughening, which pre­treatments also had the effect of impairing the tensile strengths.

Description

  • The present invention relates to combinations of polyolefin filaments and yarns having high tensile strengths and moduli and low wetting and adhesive power, in particular in respect of customary matrix materials, and filaments and yarns of high wetting and adhesive power.
  • Polyolefin filaments and yarns having high ten­sile strengths and high moduli have very poor wettability by and adhesion to hydrophilic materials, such as heat-­curing phenolic, epoxy, vinylester, polyester and acry­late resin based resins customarily used for producing composite materials, and also thermoplastics and rubber. For this reason they are not particularly suitable for producing composite materials without pretreatment.
  • There have therefore been attempts to improve the wetting and adhesive power by coatings, plasma and corona treatment and also by mechanical and/or chemical rough­ening. Apart from the fact that such measures are costly, they frequently also bring about a reduction in the tensile-strength properties of the filaments and yarns thus treated.
  • It is therefore an object of the present inven­tion to provide an inexpensive way of enhancing the wet­ting and adhesive properties of polyolefin filaments and yarns while retaining their tensile strengths and moduli.
  • This object is achieved according to the inven­tion by combinations of polyolefin filaments and yarns having high tensile strengths and moduli and low wetting and adhesive power, in particular in respect of custom­ary matrix materials, and filaments and yarns of high wetting and adhesive power.
  • These combinations can be used in particular for producing composite materials using the aforementioned customary polymeric matrix materials, since they adhere well to the matrix materials without their desired high tensile strength and modulus values having been impaired by a surface treatment.
  • Preferably the polyolefin filaments and yarns of low wetting and adhesive power are those which have been produced by the gel process and subsequent high drawing. This gel process, which is described for example in DE Offenlegungsschrift 3,724,434 and also in GB-A-2,042,414 and -2,051,667, comprises essentially dissolving a poly­olefin in a solvent, moulding the solution at a temper­ature above the dissolving temperature of the polyolefin into a filament, cooling the filament, for gelling, to a temperature below the dissolving temperature and then drawing the gel filament with solvent removal, prefer­ably employing draw ratios of more than 20, in partic­ular more than 30.
  • The polyolefins used consist preferably of poly­ethylenes in particular linear polyethylenes, having an ultrahigh molecular weight of more than 600,000 g/mol (weight average of molecular weight). These polyethylenes may contain minor amounts preferably not more 5 mol %, of one or more other alkenes copolymerizable therewith, such as propylene, butylene, pentene, hexene, 4-methylpentene, octene etc. Preferably the polyethylenes can have from 1 to 10, in particular 2 to 6, methyl or ethyl groups per 1,000 carbon atoms. However, it is also possible to use other polyolefins, for example polypropylene homopoly­mers and copolymers; furthermore, the polyolefins used may contain minor amounts of one or more other polymers in particular alkene-l-polymers.
  • It is particularly suitable to use polyolefin filaments having tensile strengths of more than 2 GPa and moduli of more than 60 GPa.
  • The filaments and yarns of high wetting and adhesive power consist preferably of glass, carbon, poly­amides or polyesters. However, it is also possible to resort to other filaments and yarns of high wetting and adhesive power in respect of the abovementioned materials.
  • Advantageously, the two filament and yarn types are combined by core spinning a filament or yarn of low wetting and adhesive power with a filament and/or a yarn of high wetting and adhesive power, or by twisting the two components.
  • In general, the proportion of filaments or yarns of high wetting and adhesive power in relation to the proportion of filaments and yarns of low wetting and adhesive power is 10 to 50% by weight, in particular 15 to 30% by weight, particularly advantageously these pro­portions being about 25% by weight in the case of core spinning and about 15% by weight in the case of twist­ing. Composite materials which have been produced using combinations according to the invention as reinforcing materials can be used for example to produce sport articles such as tennis rackets or golf clubs, boat hulls such as kayak or canoe boat hulls, antiballistic articles, helmets, high-pressure hoses etc.

Claims (7)

1. A combination of polyolefin filaments and yarns having high tensile strengths and moduli and low wetting and adhesive power, in particular in respect of custom­ary matrix materials, and filaments and yarns of high wetting and adhesive power.
2. A combination as claimed in claim 1, wherein the polyolefin filaments and yarns of low wetting and adhesive power have been produced by the gel process and been highly drawn.
3. A combination as claimed in either of claims 1 and 2, wherein the polyolefin filaments and yarns consist of polyethylenes, in particular linear polyethylenes, having an ultrahigh molecular weight of more than 600,000 g/mol (weight average of molecular weight).
4. A combination as claimed in any of claims 1 to 3, wherein the filaments and yarns of high wetting and adhesive power consist of glass, carbon, polyesters or polyamides.
5. A combination as claimed in any of claims 1 to 4, wherein the filaments or yarns of low wetting and adhesive power have been combined with filaments or yarns of high wetting and adhesive power by core spin­ning or twisting.
6. A combination as claimed in any of claims 1 to 5, wherein the proportion of filaments of yarns of high wetting and adhesive power in relation to the proportion of filaments and yarns of low wetting and adhesive power is 10 to 50% by weight, in particular 15 to 30% by weight.
7. Use of a combination as claimed in any of claims 1 to 6 for producing composite materials.
EP88202163A 1987-10-02 1988-09-30 Combinations of polyolefin filaments and yarns of low wetting and adhesive power and filaments and yarns of high wetting and adhesive power Withdrawn EP0310202A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3733429 1987-10-02
DE3733429 1987-10-02

Publications (1)

Publication Number Publication Date
EP0310202A1 true EP0310202A1 (en) 1989-04-05

Family

ID=6337525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88202163A Withdrawn EP0310202A1 (en) 1987-10-02 1988-09-30 Combinations of polyolefin filaments and yarns of low wetting and adhesive power and filaments and yarns of high wetting and adhesive power

Country Status (2)

Country Link
EP (1) EP0310202A1 (en)
JP (1) JPH01156538A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014029A1 (en) * 1990-03-14 1991-09-19 Allied-Signal Inc. Spinning of high molecular weight polyethylene fiber and the resulting spun fiber
WO1994000627A1 (en) * 1992-06-22 1994-01-06 Allied-Signal Inc. Spinning of high molecular weight polyethylene fiber and the resulting spun fiber
US5749214A (en) * 1996-10-04 1998-05-12 Cook; Roger B. Braided or twisted line
EP0996781B2 (en) † 1997-07-17 2011-12-21 Tapijtfabriek H. Desseaux N.V. A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated
US8303079B2 (en) * 2008-08-11 2012-11-06 Xerox Corporation Surface cleaning using a filament

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448782A (en) * 1945-05-14 1948-09-07 Archibald H Davis Composite strand and fabric
US2475083A (en) * 1947-07-03 1949-07-05 Archibald H Davis Composite textile strand and fabric

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448782A (en) * 1945-05-14 1948-09-07 Archibald H Davis Composite strand and fabric
US2475083A (en) * 1947-07-03 1949-07-05 Archibald H Davis Composite textile strand and fabric

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014029A1 (en) * 1990-03-14 1991-09-19 Allied-Signal Inc. Spinning of high molecular weight polyethylene fiber and the resulting spun fiber
WO1994000627A1 (en) * 1992-06-22 1994-01-06 Allied-Signal Inc. Spinning of high molecular weight polyethylene fiber and the resulting spun fiber
US5749214A (en) * 1996-10-04 1998-05-12 Cook; Roger B. Braided or twisted line
EP0996781B2 (en) † 1997-07-17 2011-12-21 Tapijtfabriek H. Desseaux N.V. A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated
US8303079B2 (en) * 2008-08-11 2012-11-06 Xerox Corporation Surface cleaning using a filament

Also Published As

Publication number Publication date
JPH01156538A (en) 1989-06-20

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