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WO2003072350A1 - Materiau pelliculaire - Google Patents

Materiau pelliculaire Download PDF

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Publication number
WO2003072350A1
WO2003072350A1 PCT/JP2003/002072 JP0302072W WO03072350A1 WO 2003072350 A1 WO2003072350 A1 WO 2003072350A1 JP 0302072 W JP0302072 W JP 0302072W WO 03072350 A1 WO03072350 A1 WO 03072350A1
Authority
WO
WIPO (PCT)
Prior art keywords
copolymer
yarns
film material
yarn
light
Prior art date
Application number
PCT/JP2003/002072
Other languages
English (en)
Japanese (ja)
Inventor
Hiroyuki Mori
Original Assignee
Teijin Limited
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 Teijin Limited filed Critical Teijin Limited
Publication of WO2003072350A1 publication Critical patent/WO2003072350A1/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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64B—LIGHTER-THAN AIR AIRCRAFT
    • B64B1/00—Lighter-than-air aircraft
    • B64B1/58—Arrangements or construction of gas-bags; Filling arrangements

Definitions

  • the present invention relates to a membrane material, and more specifically, can be suitably used as a material for a hull of a soft flying ship used for earth observation, meteorological observation, radio wave relay, and the like, which is retained in the stratosphere. It is related to membrane materials. Background art
  • Japanese Patent Application Laid-Open No. 2001-239605 discloses a sheet formed by laminating a woven fabric and a film.
  • the fineness of the yarn constituting the woven fabric is 10 to 250 dte X, the strength is 10 cN / dtex or more, the elastic modulus is 350 cN / dtex or more, and the fabric weight is 10 to 200. g / m 2 , and that the finolem is a film made of an ethylene-vinylinoleanol copolymer having a thickness of 10 to 40 ⁇ m.
  • JP-A-2001-2777391 discloses that, in a sheet formed by laminating a woven fabric and a film, the yarn constituting the woven fabric comprises a melt anisotropic aromatic polyester as a core component.
  • Polyphenylene Sulfur It is disclosed that it is a core-sheath type composite fiber having an iod as a sheath component.
  • Japanese Patent Application Laid-Open Publication No. 2001-3344594 discloses that in a sheet in which a woven fabric and a film are laminated, the yarn constituting the woven fabric is formed of polybenzoxazole and / or polybenzoxane. It is composed of a fiber mainly composed of thiazole, the fineness of the yarn is 10 to 300 d t'ex, and the strength is
  • the elastic modulus is not less than 200 cNZ dtex and the elastic modulus is not less than 700 cN / dtex.
  • the above-mentioned known membrane material was unsuitable as an airship membrane material used in the stratosphere in the following points. That is, the outermost film of the film material does not have sufficient light resistance, so that deterioration due to light occurs, and the film cannot be used for a long period of time.
  • the base fabric of the film material is a woven fabric, its constituent yarns are bent.
  • An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a light-weight, high-strength film material having excellent light resistance.
  • the present inventor has conducted intensive studies to achieve the above object, and as a result, has used a laminate of a group of sheet-like yarns in which yarns are arranged in the negative direction as a base fabric of the film material.
  • a resin layer with excellent gas barrier properties and a light-resistant resin layer that can be used in an atmosphere of minus 80 ° C to 80 ° C while maximizing the strength, on the surface of the laminate It was determined that a desired film material could be obtained.
  • a base fabric, a gas barrier layer and a light-resistant resin layer are provided, and the base fabric is composed of a plurality of sheet-like yarn groups in which the yarns are arranged in the negative direction, and
  • the film material is characterized in that the sheet-like yarn groups are laminated so that the arrangement direction of the yarns is different from each other, and the intersections of the yarns are bonded and integrated with an adhesive.
  • a plurality of sheet-like yarn groups in which the yarns are arranged in the minus direction are laminated as a base fabric of the membrane material so that the arrangement direction of the yarns in each sheet-like yarn group is different from each other. Use the laminated body.
  • the yarn it is preferable to use a fiber yarn having a tensile strength of 14 lcN / dtex or more, which is called a so-called high-strength fiber, so that the obtained membrane material has as high a strength as possible. .
  • high-strength fiber examples include para-aramid fibers such as polyparaphenylene-terephthalate-noreamide fibers, copolymer fibers of para-aramid and meta-aramid, or aromatic ethers, for example, 3,4- Para-based aramide fibers copolymerized with diaminodivinyl ether, as well as polypropylene raphenylene benzobisoxazole fibers, polyimide fibers, wholly aromatic polyester fibers, polyarylate fibers, and polyetherimids. Fiber, polyetheretherketone fiber, or a mixed fiber thereof.
  • para-aramid fibers such as polyparaphenylene-terephthalate-noreamide fibers, copolymer fibers of para-aramid and meta-aramid, or aromatic ethers, for example, 3,4- Para-based aramide fibers copolymerized with diaminodivinyl ether, as well as polypropylene raphenylene benzobisoxazole
  • polyparafene nitrene terephthalamide fibers (Dupont, Kepler, Teijin Twaron, Twaron) and para-aramid fibers copolymerized with 3,4 diamino diphenyl ether (Teijin shares) Company "Technola”), or polyparaphenylene benzobisoxazole fiber (manufactured by Toyobo Co., Ltd., "Xylon”) has excellent heat resistance and is particularly preferably exemplified.
  • a sheet-like yarn group in which yarns are arranged in one direction is a sheet-like material in which the fiber yarns are arranged in a minus direction and fixed with an adhesive resin sheet or a film or the like.
  • the base fabric is formed by laminating a plurality of sheets so that the arrangement direction of the yarns is different from each other.
  • the arrangement direction of the yarns in each sheet-like yarn group may be different from each other, and is not particularly limited, but when the number of laminations is two, the yarns may be arranged in any direction of the base fabric.
  • the base fabric is preferable to the arrangement direction of the yarn 9 0 ° different, the intersection of the yarns constituting the sheet-like yarn group is bonded and integrated with an adhesive It is necessary.
  • the yarns are arranged linearly without adopting a bent structure as in a woven fabric, so that the inherent strength of the yarns can be sufficiently exhibited.
  • the gas barrier layer a film or film of polyvinylidene chloride, ethylene-vinyl alcohol copolymer, polyacrylonitrile, polyethylene naphthalate, polyketone, phenoxy resin, or the like can be used.
  • ethylene-vinyl alcohol-based copolymer (“Kebare”, “EVAL”), which has a particularly excellent gas shielding performance, in order to confine gas with small molecules such as helium.
  • one layer of the gas barrier may be subjected to aluminum vapor deposition for the purpose of further improving gas barrier properties and weather resistance.
  • the method for forming the gas barrier layer As the method for forming the gas barrier layer, a conventionally known method can be arbitrarily adopted. Specifically, a method of melt-coating or wet-coating the resin, a method of laminating a film made of the resin, and the like are exemplified.
  • membrane materials used for airships and the like need to have extremely high weather resistance because they are used in the stratosphere. That is, in the stratosphere, the sun is constantly exposed to sunlight during the daytime and the outside temperature reaches nearly 80 ° C, while at night the temperature drops and drops to minus 80 ° C. Therefore, the film material of the present invention can withstand such severe conditions for a long period of time, so that the base fabric and one layer of the gas barrier can be used even in an atmosphere of minus 80 ° C to 80 ° C. It is preferably covered with a light-resistant resin layer.
  • Examples of light-resistant resins that can be used in an atmosphere of minus 80 ° C to 80 ° C include fluorine-based resins, such as polytetrafluoroethylene, polyvinylidene fluoride, and polyvinylfluoride.
  • Tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer Tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene-ethylene copolymer, tetrafluoroethylene-hexafluorolobe pyrene copolymer, vinylidene phenolic copolymer Propylene copolymer, vinylidenefluoride dotetratetranoleole-ethylene-hexafluoropropylene copolymer, polycyclo-triphenylene-olethrene ethylene, ethylene-chloro-trifluoroethylene copolymer, etc. are preferred. Is exemplified.
  • Examples of other light-resistant resins that can be used in an atmosphere of minus 80 to 80 ° C. include polyethylene polymerized using a meta-mouth catalyst.
  • the light-resistant resin layer may cover either one side or both sides of the film material, but the surface exposed to sunlight and in contact with outside air must be coated.
  • a conventionally known method can be arbitrarily adopted. Specific examples include a method of performing wet coating using an emulsion solution of the above resin, and a method of laminating a film made of the above resin.
  • a yarn composed of the fibers shown in Table 1 and having a fineness of 450 dtex is wound around a yarn support member through a rotating arm, and the yarn is arranged with a density of 20 yarns Z 2.54 cm.
  • the fibers also shown in Table 1 A yarn with a fineness of 44 dtex, consisting of fibers, is pulled out from the creel stand, and 20 yarns are arranged from the top and bottom with an arrangement density of 2.54 cm so that the arrangement directions of the yarns are 90 ° different from each other. After stacking them together, they were led to the holding jaws.
  • the yarn group was immersed in a tank containing an acrylic ester resin emulsion adhesive to impregnate and adhere the adhesive. It was dried by bringing it into contact with a cylinder heated to C and wound up on a winding roll to obtain a base fabric on which a group of sheet-like yarns was laminated. Table 1 shows the strength utilization rate of the obtained base cloth.
  • An ethylene copolymer film (manufactured by Asahi Glass: "Aflex”) was bonded to obtain a film material.
  • Table 1 also shows the performance of the obtained film material.
  • the strength utilization rate is defined as the theoretical strength, where the tensile strength of the base fabric assuming that the tensile strength of the yarn constituting the obtained base fabric has developed 100% is defined as the theoretical strength. It was expressed as the ratio (%) of the measured tensile strength. If this value is 95% or more, it can be said that it is lightweight and has high strength.
  • the light resistance was measured in accordance with JIS 1415, by measuring the tensile strength after the film material was exposed for 2000 hours, and expressed as a ratio (%) of the tensile strength to the tensile strength before the exposure. If this value is 90% or more, it can be said that the film has good light fastness.
  • the light-resistant resin can be used in an atmosphere of minus 80 ° C to 80 ° C depends on whether the resin is used in a minus 80 ° C atmosphere and in a 80 ° C atmosphere, respectively. After exposure for 24 hours, the strength was measured immediately after being taken out of the atmosphere and evaluated by the retention from the original strength. If the retention rate is 80% or more, it can be determined that it can be used.
  • Example 3 After exposure for 24 hours, the strength was measured immediately after being taken out of the atmosphere and evaluated by the retention from the original strength. If the retention rate is 80% or more, it can be determined that it can be used.
  • Example 1 in place of the tetrafluoroethylene-ethylene copolymer film, a polyethylene film having a thickness of 60 ⁇ , which was polymerized using a metallocene catalyst (“Umerit” manufactured by Ube Industries, Ltd.) ) was performed in the same manner as in Example 1 except that) was used.
  • a metallocene catalyst (“Umerit” manufactured by Ube Industries, Ltd.)
  • Table 1 also shows the performance of the obtained film material.
  • Example 2 in place of the tetrafluoroethylene-ethylene copolymer film, a polyethylene film having a thickness of 60 ⁇ and polymerized using a metallocene catalyst (“Umerit J” manufactured by Ube Industries) The procedure was performed in the same manner as in Example 2 except for using.
  • a metallocene catalyst (“Umerit J” manufactured by Ube Industries)
  • Table 1 also shows the performance of the obtained film material. '' Comparative Examples 1-2
  • Example 1 was carried out in the same manner as in Example 1 except that a tetrachloroethylene-ethylene copolymer film was replaced by a 30 ⁇ m-thick polychlorinated vinyl film or a polyurethane film. Table 1 also shows the performance of the obtained film material.
  • Example 2 was carried out in the same manner as in Example 2 except that a polychlorinated vinyl film or a polyurethane film having a thickness of 30 ⁇ m was used instead of the tetrafluoroethylene-ethylene copolymer film.
  • Table 1 shows the performance of the obtained film material.
  • a yarn having a fineness of 450 dteX composed of the fibers shown in Table 1 was arranged in the course, and a base fabric made of a plain weave having a weave density of 20 yarns / 2.54 cm was obtained.
  • Table 1 shows the strength utilization rate of the obtained base cloth.
  • Table 1 also shows the performance of the obtained film material.
  • the film material of the present invention has excellent light resistance, is lightweight and has high strength, and is therefore suitable as a material for the hull of a soft airship used for earth observation, weather observation, radio wave relay, and the like. Can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une couche de barrière gazeuse et une couche de résistance à la lumière aptes à être utilisées dans une atmosphère de 80 à 80 °C, qui sont formées sur un tissu de base composé d'une pluralité de groupes de fils sous forme de feuille, disposés dans une direction, des groupes de fils sous forme de feuilles étant placés en couches, de sorte que la direction de disposition des fils soit différente d'une autre. Les intersections des fils respectifs sont liées intégralement par adhésif. Il est dès lors possible d'obtenir un matériau pelliculaire d'excellente résistance à la lumière, de poids léger, très résistant et apte à être utilisé comme il se doit pour des matériaux de corps de dirigeables légers ou similaires, s'utilisant dans le cadre de l'observation de la Terre, de l'observation météorologique et dans ce cadre de systèmes de répéteurs radioélectriques.
PCT/JP2003/002072 2002-02-26 2003-02-25 Materiau pelliculaire WO2003072350A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-49562 2002-02-26
JP2002049562 2002-02-26

Publications (1)

Publication Number Publication Date
WO2003072350A1 true WO2003072350A1 (fr) 2003-09-04

Family

ID=27764272

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PCT/JP2003/002072 WO2003072350A1 (fr) 2002-02-26 2003-02-25 Materiau pelliculaire

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WO (1) WO2003072350A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020073A1 (fr) * 2008-08-19 2010-02-25 昶闳科技股份有限公司 Géotextile non dilaté étanche à l'eau et thermiquement isolant
CN104309796A (zh) * 2014-09-25 2015-01-28 安徽科耀智能科技有限公司 一种高安全结构的无人机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04235035A (ja) * 1990-07-02 1992-08-24 Mitsui Petrochem Ind Ltd ガスバリヤー性に優れた膜材およびその用途
WO1996010666A1 (fr) * 1994-09-30 1996-04-11 Lockheed Martin Corporation Materiau souple destine a etre utilise dans une structure gonflable
JP2001239605A (ja) * 2000-02-29 2001-09-04 Kuraray Co Ltd 積層シート
JP2001277391A (ja) * 2000-04-04 2001-10-09 Kuraray Co Ltd 積層シート
JP2001334594A (ja) * 2000-05-29 2001-12-04 Kuraray Co Ltd 積層シート

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04235035A (ja) * 1990-07-02 1992-08-24 Mitsui Petrochem Ind Ltd ガスバリヤー性に優れた膜材およびその用途
WO1996010666A1 (fr) * 1994-09-30 1996-04-11 Lockheed Martin Corporation Materiau souple destine a etre utilise dans une structure gonflable
JP2001239605A (ja) * 2000-02-29 2001-09-04 Kuraray Co Ltd 積層シート
JP2001277391A (ja) * 2000-04-04 2001-10-09 Kuraray Co Ltd 積層シート
JP2001334594A (ja) * 2000-05-29 2001-12-04 Kuraray Co Ltd 積層シート

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020073A1 (fr) * 2008-08-19 2010-02-25 昶闳科技股份有限公司 Géotextile non dilaté étanche à l'eau et thermiquement isolant
CN104309796A (zh) * 2014-09-25 2015-01-28 安徽科耀智能科技有限公司 一种高安全结构的无人机

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