WO2013084895A1 - 非円形の断面形状を備えるガラス繊維及びそれを用いる繊維強化樹脂成形体 - Google Patents
非円形の断面形状を備えるガラス繊維及びそれを用いる繊維強化樹脂成形体 Download PDFInfo
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- WO2013084895A1 WO2013084895A1 PCT/JP2012/081402 JP2012081402W WO2013084895A1 WO 2013084895 A1 WO2013084895 A1 WO 2013084895A1 JP 2012081402 W JP2012081402 W JP 2012081402W WO 2013084895 A1 WO2013084895 A1 WO 2013084895A1
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/006—Glass-ceramics fibres
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C14/00—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
- C03C14/008—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix the non-glass component being in molecular form
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/1095—Coating to obtain coated fabrics
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
- Y10T428/2976—Longitudinally varying
Definitions
- the present invention relates to a glass fiber having a non-circular cross-sectional shape and a fiber reinforced resin molded body using the glass fiber.
- a glass fiber having a non-circular cross-sectional shape has been proposed (see, for example, Patent Document 1).
- a shape in which all parts of the circumference are equidistant from the center point is defined as a perfect circle, and a shape different from the perfect circle is defined as a non-circular shape.
- the non-circular shape includes shapes such as a flat shape, a star shape, a cross shape, a polygonal shape, and a donut shape.
- the said flat shape shall include shapes, such as an ellipse, an ellipse, and a bowl shape, for example.
- the glass fiber having the non-circular cross-sectional shape is mixed and melted with a thermoplastic resin and injection-molded to form a fiber-reinforced resin molded body, whereby the mechanical strength, dimensional accuracy, warpage, etc. of the fiber-reinforced resin molded body It is said that it can be improved.
- the reason why the mechanical strength of the fiber-reinforced resin molded article is improved is that the glass fiber having the non-circular cross-sectional shape is compared with the thermoplastic resin in comparison with the glass fiber having a perfect circular cross-sectional shape. It is mentioned that a contact area becomes large. Further, the reason why the dimensional accuracy, warpage, etc.
- the glass fiber having the non-circular sectional shape has a true sectional shape when the fiber reinforced resin molded article is formed.
- the orientation in the planar direction of the compact is good, and it is easy to align in two dimensions.
- the glass fiber having the non-circular cross-sectional shape is generally formed of E glass
- the glass fiber made of the E glass may not be able to obtain sufficient strength and elastic modulus. Therefore, it is desired to give sufficient strength and elastic modulus to the glass fiber having the non-circular cross-sectional shape.
- a glass fiber made of S glass is known as a glass fiber having strength superior to that of the glass fiber made of E glass.
- the glass fiber made of S glass has a composition in which the content of SiO 2 is about 65% by mass, the content of Al 2 O 3 is about 25% by mass, and the content of MgO is about 10% by mass with respect to the total amount. ing.
- the S glass has a difference between the 1000 poise temperature and the liquidus temperature of the molten glass when the glass composition as a raw material is melted to obtain a molten glass and is spun from the molten glass to obtain glass fibers. There is a problem that is small.
- the “1000 poise temperature” is a temperature at which the viscosity of the molten glass becomes 1000 poise
- the “liquid phase temperature” is a temperature at which crystals are first precipitated when the temperature of the molten glass is lowered.
- the proper viscosity for producing glass fibers is 1000 poise or less, and the spinning is more stable as the temperature range (working temperature range) between 1000 poise temperature and liquidus temperature is wider. Therefore, the working temperature range is used as a guideline for ensuring spinnability.
- the molten glass is easily crystallized (devitrified) even under the influence of a slight temperature drop in the process of being cooled after spinning to become glass fibers. Problems such as glass fiber cutting are likely to occur. Since the S glass has a narrow working temperature range, when a glass composition as a raw material is melted to form a molten glass, glass fibers having a non-circular cross-sectional shape are stably spun from the molten glass. It is difficult. “Devitrification” is a phenomenon in which crystals precipitate when the temperature of the molten glass is lowered.
- a glass composition has been proposed in which the composition of the glass composition that is the raw material of the S glass is improved to include CaO together with SiO 2 , Al 2 O 3 , and MgO.
- the glass composition for example, there is known a glass composition that can be easily spun while maintaining a working temperature range at a relatively low temperature by reducing the viscosity by lowering a 1000 poise temperature (Patent Document). 2).
- the glass composition with a big difference of 1000 poise temperature and liquidus temperature is known as said glass composition (refer patent document 3).
- JP 2006-45390 A Japanese Examined Patent Publication No. 62-001337 JP-T 2009-514773
- the glass composition described in Patent Document 2 containing CaO together with SiO 2 , Al 2 O 3 , and MgO tends to be devitrified when melted into a molten glass, and is difficult to spin stably.
- the glass composition described in Patent Document 3 is difficult to mass-produce because when the molten glass is melted, the molten glass has a high 1000 poise temperature. Therefore, the conventional glass composition has a disadvantage that it is difficult to obtain glass fibers having a non-circular cross-sectional shape and excellent strength and elastic modulus.
- An object of the present invention is to eliminate such inconvenience and to provide a glass fiber having a non-circular cross-sectional shape and having excellent strength and elastic modulus.
- Another object of the present invention is to provide a fiber reinforced resin molded article using glass fibers having the non-circular cross-sectional shape.
- the present invention provides a glass fiber having a non-circular cross-sectional shape obtained by melting a glass composition as a raw material of glass fiber to obtain molten glass, and spinning from the molten glass.
- a glass composition that is a raw material for glass fiber having the above composition is melted to obtain molten glass.
- a glass fiber provided with a non-circular cross-sectional shape is obtained by spinning from the molten glass. Since the glass fiber provided with the non-circular cross-sectional shape of the present invention has the above composition, excellent strength and elastic modulus can be obtained.
- the glass fibers can not obtain sufficient mechanical strength as a glass fiber content of SiO 2 is less than 57.0 wt% based on the total amount, exceeds 63.0 wt%, the glass becomes the raw material The 1000 poise temperature and liquidus temperature of the molten glass obtained from the composition are increased.
- the glass fiber cannot obtain a sufficient elastic modulus when the content of Al 2 O 3 is less than 19.0% by mass relative to the total amount, and when it exceeds 23.0% by mass, the glass serving as a raw material thereof The liquidus temperature of the molten glass obtained from the composition is increased.
- the glass fiber cannot obtain a sufficient elastic modulus if the MgO content is less than 10.0% by mass with respect to the total amount, and if it exceeds 15.0% by mass, the glass fiber becomes a raw material.
- the liquid phase temperature of the obtained molten glass becomes high.
- the glass fiber has a higher liquidus temperature when the CaO content is less than 5.5% by mass with respect to the total amount.
- the 1000 poise temperature and the liquidus temperature of the molten glass obtained from the above increase.
- the glass fiber cannot obtain a sufficient elastic modulus when the MgO / CaO ratio of MgO to CaO content is less than 0.8.
- the liquidus temperature of the molten glass obtained from the composition is increased.
- the cross-sectional shape is, for example, a flat shape.
- the flat shape include one shape selected from the group consisting of an ellipse, an oval, and a bowl.
- the first crystal precipitated (devitrification initial phase) when the temperature is lowered is cordierite single crystal or cordier. It becomes a mixed crystal of erite and anorthite.
- the molten glass is compared to the case where the devitrification initial phase is a crystal other than the above.
- the molten glass has a temperature between 1000 poise, which is a temperature at which the viscosity becomes 1000 poise, and a liquidus temperature, which is a temperature at which crystals are first precipitated when the temperature is lowered.
- the working temperature range which is the temperature range, is 50 ° C. or higher, and the viscosity corresponding to the liquidus temperature (liquid phase viscosity) is 3000 poise or higher, so that the cross-sectional shape of the glass fiber can be made noncircular. .
- Creating a non-circular glass fiber with a cross-sectional shape requires more stringent conditions for setting the spinning temperature range than creating a glass fiber with a circular cross-sectional shape.
- the viscosity at the time of spinning of the molten glass is less than 1000 poise, the spun glass fiber may be rounded due to surface tension, and the cross-sectional shape may not be non-circular. Therefore, in order to make the cross-sectional shape non-circular, it is generally necessary to spin at a high viscosity of 1000 poise or more.
- the liquid phase viscosity is at least 3000 poise.
- the liquid phase viscosity is preferably 4000 poise or more, more preferably 5000 poise or more.
- the working temperature range which is the difference between the 1000 poise temperature and the liquidus temperature, be 50 ° C. or higher. If the working temperature range is narrow, there is a risk that troubles may occur during spinning, such as the glass melt devitrifying and the glass fibers are cut.
- the present invention provides a glass fiber having a non-circular cross-sectional shape spun from the molten glass by melting a glass composition as a raw material of the glass fiber, and the molten glass has a temperature of 1000 poise.
- the working temperature range that is the difference from the liquidus temperature is 50 ° C. or more, and the liquidus viscosity that is the viscosity corresponding to the liquidus temperature is 3000 poise or more.
- the molten glass obtained by melting the glass composition that is the raw material of the glass fiber of the present invention has a temperature condition for spinning the glass fiber having the above-mentioned noncircular cross-sectional shape. Therefore, it is possible to stably spin glass fibers having a non-circular cross-sectional shape.
- the glass fiber preferably has a strength of 4.0 GPa or more and an elastic modulus of 85 GPa or more.
- the glass fiber provided with the non-circular cross-sectional shape of the present invention can be suitably used for applications constituting a fiber-reinforced resin molded product because its strength is 4.0 GPa or more and its elastic modulus is 85 GPa or more. .
- the fiber-reinforced resin molded body of the present invention is characterized in that glass fiber having a non-circular cross-sectional shape and a thermoplastic resin are mixed and melted and injection molded. Since the fiber reinforced resin molded product of the present invention includes the glass fiber having the non-circular cross-sectional shape, mechanical strength, dimensional accuracy, warpage, and the like are improved, and excellent strength can be obtained.
- the glass fiber having a non-circular cross-sectional shape of the present embodiment is obtained by melting a glass composition that is a raw material of glass fiber to form molten glass, and spinning from the molten glass.
- the glass fiber having a non-circular cross-sectional shape of the present embodiment may have a flat cross-sectional shape, such as a star shape, a cross shape, a polygonal shape, a trilobal shape, a four-leaf shape, an H shape, a U shape, and a V shape. It may be a shape such as a shape or a donut shape. Examples of the flat shape include any shape such as an ellipse, an oval, and a bowl.
- the glass fiber having a non-circular cross-sectional shape of the present embodiment has a SiO 2 content of 57.0 to 63.0 mass% and an Al 2 O 3 content of 19.0 to 23.0 mass relative to the total amount. %, MgO content of 10.0 to 15.0 mass%, CaO content of 5.5 to 11.0 mass%, ratio of MgO content to CaO content of MgO / CaO of 0.8 With a composition in the range of ⁇ 2.0.
- the glass fibers can not obtain sufficient mechanical strength as a glass fiber content of SiO 2 is less than 57.0 wt% based on the total amount, exceeds 63.0 wt%, the glass becomes the raw material
- the 1000 poise temperature and liquidus temperature of the molten glass obtained from the composition are increased.
- the content of SiO 2 is 57.75% with respect to the total amount of the glass fiber in order to make the 1000 poise temperature of the molten glass composition obtained from the glass composition used as the raw material of the glass fiber 1350 ° C. or less. It is preferably in the range of 0 to 62.0% by mass, and more preferably in the range of 57.0 to 61.0% by mass.
- the glass fiber cannot obtain a sufficient elastic modulus when the content of Al 2 O 3 is less than 19.0% by mass relative to the total amount, and when it exceeds 23.0% by mass, the glass serving as a raw material thereof
- the liquidus temperature of the molten glass obtained from the composition is increased.
- the content of the Al 2 O 3 is to obtain an excellent elastic modulus in the glass fiber, and to lower the liquidus temperature of the molten glass and widen the working temperature range, It is preferably in the range of 19.5 to 22.0% by mass, and more preferably in the range of 20.0 to 21.0% by mass.
- the glass fiber has a content of Al 2 O 3 in the range of 19.0 to 23.0% by mass, particularly in the vicinity of 20.0% by mass with respect to the total amount.
- the said devitrification initial phase in the molten glass obtained from the composition can be a cordierite single crystal or a mixed crystal of cordierite and anorthite.
- the devitrification initial phase in the molten glass obtained from the glass composition as the raw material is used as cordierite alone. It may not be possible to make crystals or mixed crystals of cordierite and anorthite.
- the glass fiber in order to make the devitrification initial phase in the molten glass obtained from the glass composition as a raw material a single crystal of cordierite or a mixed crystal of cordierite and anorthite,
- the content of Al 2 O 3 is preferably in the range of 19.0% by mass to 22.0% by mass with respect to the total amount of the glass fiber.
- the content of SiO 2 / Al 2 O 3 is preferably 2.6 to 3.3 in terms of weight ratio. This is because, within such a range, the glass fiber has a wide working temperature range during production and has a sufficient elastic modulus. Further, the content of SiO 2 / Al 2 O 3 is more preferably 2.7 to 3.2 by weight. This is because glass fibers having a high elastic modulus can be obtained when the weight ratio of SiO 2 content / Al 2 O 3 is 3.2 or less. Further, when the weight ratio is 2.7 or more, the liquidus temperature can be lowered and the devitrification phenomenon can be suppressed.
- the glass fiber cannot obtain a sufficient elastic modulus if the MgO content is less than 10.0% by mass with respect to the total amount, and if it exceeds 15.0% by mass, the glass fiber becomes a raw material.
- the liquid phase temperature of the obtained molten glass becomes high.
- the MgO content is 11.0% relative to the total amount of the glass fiber in order to obtain an excellent elastic modulus in the glass fiber and to lower the liquidus temperature of the molten glass and widen the working temperature range. It is preferably in the range of ⁇ 14.0% by mass, and more preferably in the range of 11.5 to 13.0% by mass.
- the content of CaO is less than 5.5% by mass with respect to the total amount of the glass fiber
- the liquidus temperature of the molten glass obtained from the glass composition as the raw material becomes high and exceeds 11.0% by mass.
- 1000 poise temperature and liquidus temperature of the molten glass are increased.
- the CaO content ranges from 6.0 to 10.5% by mass with respect to the total amount of the glass fiber in order to lower the 1000 poise temperature and liquidus temperature of the molten glass to widen the working temperature range. It is preferably in the range of 7.0 to 10.0% by mass.
- the glass fiber cannot obtain a sufficient elastic modulus if the ratio MgO / CaO of the MgO content to the CaO content is less than 0.8.
- the liquidus temperature of the molten glass obtained from the product increases.
- the ratio of the content of MgO to the content of CaO MgO / CaO is 1 in order to obtain an excellent elastic modulus in the glass fiber and to lower the liquidus temperature of the molten glass and widen the working temperature range. It is preferably in the range of 0.0 to 1.8.
- the glass fiber contains SiO 2 , Al 2 O 3 , MgO and CaO as a basic composition in the above-mentioned range, but is inevitably mixed due to reasons such as being contained in the raw materials of each component May be included.
- other components include Na alkali metal oxides such as 2 O, Fe 2 O 3, TiO 2, ZrO 2, MoO 3, Cr 2 O 3 or the like.
- the content of the other component is preferably less than 1.0% by mass, more preferably less than 0.5% by mass, and less than 0.2% by mass with respect to the total amount of the glass fiber. More preferably.
- the glass fiber has a sufficient elastic modulus because the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.0% by mass or more and the content of other impurity components is relatively small. Obtainable. Moreover, when manufacturing glass fiber from the molten glass obtained from the glass composition used as the raw material, a sufficient working temperature range can be ensured.
- the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.5% by mass or more, it is possible to obtain a more excellent elastic modulus in the glass fiber. Furthermore, in order to ensure a sufficient working temperature range in the molten glass obtained from the glass composition that is the raw material of the glass fiber, it is in the range of 99.8% by mass or more with respect to the total amount of the glass fiber. More preferred.
- the glass fiber has a composition equivalent to a glass composition as a raw material and a molten glass obtained by melting the glass composition.
- glass cullet or glass batch can be used as the glass composition used as the raw material of the glass fiber.
- the molten glass can be obtained by remelting the glass cullet or directly melting the glass batch.
- the molten glass has a working temperature range of 50 ° C. or higher, which is the difference between the 1000 poise temperature and the liquidus temperature.
- the viscosity corresponding to the liquidus temperature is 3000 poises or more, and is preferably 4000 poises or more, more preferably 5000 poises or more from the viewpoint of spinning stability.
- the glass fiber having the non-circular cross-sectional shape can be produced from the molten glass by a method known per se. According to the known method, the molten glass is drawn out from a platinum alloy nozzle called dozens to thousands of bushings, spun, and wound at a high speed to obtain glass fibers.
- the molten glass can be increased in viscosity when the temperature is lowered, but if the target high viscosity region is lower than the liquidus temperature, there is a possibility that troubles such as devitrification and cutting of glass fibers may occur. is there.
- the molten glass of the present embodiment has the same composition as the glass fiber, has a wide working temperature range, and the devitrification initial phase is a single crystal of cordierite or a mixed crystal of cordierite and anorthite. Therefore, the crystallization rate is low. Therefore, the molten glass can be stably spun without devitrification, and glass fibers having the non-circular cross-sectional shape can be obtained.
- spinning glass fibers having a non-circular cross-sectional shape requires more strict selection of the glass composition and temperature range to be spun than spinning glass fibers having a circular cross-sectional shape. There is.
- the glass fiber having the non-circular cross-sectional shape spun as described above has a strength of 4.0 GPa or more and an elastic modulus of 85 GPa or more.
- the glass fiber having the non-circular cross-sectional shape of the present embodiment has excellent strength and elastic modulus as described above. Therefore, the glass fiber having the non-circular cross-sectional shape of the present embodiment is improved in mechanical strength, dimensional accuracy, warpage, and the like by mixing and melting with a thermoplastic resin and injection molding, and has excellent strength. And a fiber reinforced resin molding provided with an elastic modulus can be obtained.
- the glass fiber having the non-circular cross-sectional shape preferably has a fiber diameter in the range of 3 to 30 ⁇ m when the cross-sectional area is converted into a perfect circle in order to serve as a base material for the fiber-reinforced resin molded body.
- the glass fiber having the non-circular cross-sectional shape is represented by a ratio of the major axis / minor axis when measuring a major axis and a minor axis in the sectional shape in order to use as a base material of the fiber-reinforced resin molded body.
- the glass deformation ratio is preferably in the range of 2-10.
- thermoplastic resin examples include polyethylene resin, polypropylene resin, polystyrene resin, acrylonitrile / butadiene / styrene (ABS) resin, methacrylic resin, vinyl chloride resin, polyamide resin, polyacetal resin, polyethylene terephthalate (PET) resin, polybutylene terephthalate ( PBT) resin, polycarbonate resin, polyphenylene sulfide (PPS) resin, polyether ether ketone (PEEK) resin, liquid crystal polymer (LCP) resin, fluororesin, polyetherimide (PEI) resin, polyarylate (PAR) resin, polysulfone ( PSF) resin, polyethersulfone (PES) resin, polyamideimide (PAI) resin and the like.
- PET polyethylene terephthalate
- PBT polybutylene terephthalate
- PPS polyphenylene sulfide
- PEEK polyether ether ketone
- LCP liquid crystal
- thermosetting resin instead of the thermoplastic resin, a thermosetting resin may be used.
- the thermosetting resin include unsaturated polyester resins, vinyl ester resins, epoxy resins, melamine resins, phenol resins, and the like. it can.
- the thermoplastic resin or the thermosetting resin may be used alone or in combination of two or more.
- stamping molding method stamping molding method, infusion method, hand lay-up method, spray-up method, resin transfer molding (RTM) method, sheet molding compound (SMC) method, bulk molding compound (BMC) method, pluting Known molding methods such as a rouxing method and a filament winding method can also be used.
- RTM resin transfer molding
- SMC sheet molding compound
- BMC bulk molding compound
- the glass fiber having the non-circular cross-sectional shape of the present embodiment may be used alone, and the glass fiber having the non-circular cross-sectional shape of the present embodiment has the same composition and a perfect circular shape. You may use in combination with 1 or more types, such as glass fiber provided with cross-sectional shape, a well-known commercially available glass fiber, carbon fiber, organic fiber, ceramic fiber.
- the glass fiber having the non-circular cross-sectional shape of the present embodiment is a glass fiber woven fabric, braided fabric, knitted fabric, non-woven fabric, mat, triaxial braided fabric, quadruple braided fabric, chopped strand, roving, powder, etc. It can also be used as a material for producing glass fiber reinforced substrates for various composite materials.
- the fiber-reinforced resin molded body of the present embodiment can be suitably used for applications such as parts and members that require excellent mechanical strength and dimensional accuracy.
- the component and member include a vehicle exterior member, a vehicle interior member, a vehicle engine surrounding member, an electronic device housing, an electronic component, and a high-pressure tank.
- Examples of the vehicle exterior member include a door mirror and a sunroof surrounding member, the vehicle interior member includes a console box, and the vehicle engine surrounding member includes an engine cover.
- Examples of the electronic device housing include a mobile phone casing, a personal computer casing, a lens barrel of a digital camera, and a gaming machine casing.
- examples of the electronic component include various connectors.
- Example 1 In this example, first, the content of SiO 2 is 60.2% by mass, the content of Al 2 O 3 is 20.1% by mass, the content of MgO is 10.1% by mass, and the content of CaO with respect to the total amount.
- the glass raw material was prepared so that the amount was 9.5% by mass and the content of Fe 2 O 3 was 0.1% by mass to obtain a glass composition.
- the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.9% by mass, and the ratio of MgO content to CaO content is MgO / CaO of 1.1. is there.
- the composition of the glass composition is shown in Table 1.
- a glass pulverized product having the same composition as that of the glass composition is placed in a platinum boat and heated in a tubular electric furnace provided with a temperature gradient of 1000 to 1500 ° C., and the temperature at which the precipitation of crystals begins is set in the liquid phase. It was temperature.
- the glass composition is melted in a platinum crucible, and the viscosity is continuously measured using a rotary B-type viscometer while changing the temperature of the molten glass. This corresponds to a viscosity of 1000 poise.
- the temperature was 1000 poise temperature.
- the viscosity corresponding to the liquidus temperature was defined as the liquidus viscosity.
- the viscosity was measured according to JIS Z8803-1991.
- the 1000 poise temperature, liquid phase temperature and liquid phase viscosity are shown in Table 2.
- the glass composition was heated to a temperature equal to or higher than the 1000 poise temperature and melted, and then allowed to stand at a temperature 100 to 300 ° C. lower than the liquidus temperature for 6 hours. And the state of the crystal
- A indicates that no crystals are deposited
- B indicates that crystals are deposited on a part of the surface
- C indicates that crystals are deposited on the surface and inside.
- the crystal initial phase portion precipitated in the sample used for measuring the liquidus temperature was pulverized and analyzed with an X-ray diffractometer to identify the crystal seed of the devitrification initial phase.
- Table 2 shows the evaluation of devitrification resistance and the crystal seeds of the initial phase of devitrification.
- the glass composition was melted to obtain molten glass, and the molten glass was spun to obtain glass fibers having a flat and oval cross-sectional shape.
- the obtained glass fiber had the same composition as the said glass composition, and the fiber diameter when the cross-sectional area was converted into a perfect circle was 15 micrometers.
- the major axis and minor axis in the cross section of the monofilament were measured, and the ratio of major axis / minor axis was defined as the glass deformation ratio.
- Table 2 shows the cross-sectional shape, glass deformation ratio, strength, and elastic modulus of the glass fiber.
- a glass fiber bundle (strand) obtained by bundling glass fibers having an oval cross-sectional shape was cut into a length of 3 mm to prepare a chopped strand.
- the obtained chopped strand was melt-kneaded with a polyamide resin (polyamide 66), and fiber-reinforced resin pellets having a glass content of 30% by mass were produced by an extrusion method.
- a plate-like fiber reinforced resin molded body having a size of 80 mm ⁇ 10 mm ⁇ 4 mm is produced by an injection molding method, and the strength of the fiber reinforced resin molded body is measured by a tensile test. Was calculated. The results are shown in Table 2.
- Example 2 In this example, first, the content of SiO 2 is 59.2% by mass, the content of Al 2 O 3 is 20.1% by mass, the content of MgO is 12.6% by mass, and the content of CaO is based on the total amount.
- a glass raw material was prepared so that the amount was 8.0% by mass and the content of Fe 2 O 3 was 0.1% by mass to obtain a glass composition.
- the total content of SiO 2 , Al 2 O 3 , MgO, and CaO is 99.9% by mass, and the ratio of the content of MgO to the content of CaO is MgO / CaO is 1.6. is there.
- Table 1 shows the composition of the glass composition obtained in this example.
- the liquid phase temperature and the liquid phase viscosity were determined in the same manner as in Example 1, and the devitrification resistance was evaluated. The phase crystal species was identified. The results are shown in Table 2.
- the glass composition was melted to obtain molten glass, and the molten glass was spun to obtain glass fibers having an oval cross-sectional shape.
- the obtained glass fiber had the same composition as the said glass composition, and the fiber diameter when the cross-sectional area was converted into a perfect circle was 15 micrometers.
- the strength, elastic modulus, and glass deformation ratio of the glass fiber were calculated in exactly the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this example was used. The results are shown in Table 2.
- a fiber reinforced resin molded article was produced in the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this example was used, and the fiber reinforced resin was subjected to a tensile test. The strength of the molded body was calculated. The results are shown in Table 2.
- Example 3 In this example, first, the content of SiO 2 is 58.2% by mass, the content of Al 2 O 3 is 20.7% by mass, the content of MgO is 12.0% by mass, and the content of CaO is based on the total amount.
- the glass raw material was prepared so that the amount was 9.0% by mass and the content of Fe 2 O 3 was 0.1% by mass to obtain a glass composition.
- the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.9% by mass, and the ratio of the content of MgO to the content of CaO is MgO / CaO is 1.3. is there.
- Table 1 shows the composition of the glass composition obtained in this example.
- the liquid phase temperature and the liquid phase viscosity were determined in the same manner as in Example 1, and the devitrification resistance was evaluated. The phase crystal species was identified. The results are shown in Table 2.
- the glass composition was melted to obtain molten glass, and the molten glass was spun to obtain glass fibers having an oval cross-sectional shape.
- the obtained glass fiber had the same composition as the said glass composition, and the fiber diameter when the cross-sectional area was converted into a perfect circle was 15 micrometers.
- the strength, elastic modulus, and glass deformation ratio of the glass fiber were calculated in exactly the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this example was used. The results are shown in Table 2.
- a fiber reinforced resin molded article was produced in the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this example was used, and the fiber reinforced resin was subjected to a tensile test. The strength of the molded body was calculated. The results are shown in Table 2.
- Example 4 In this example, first, the content of SiO 2 is 61.4% by mass, the content of Al 2 O 3 is 19.0% by mass, the content of MgO is 12.9% by mass, and the content of CaO is based on the total amount.
- a glass material was prepared so that the amount was 6.5% by mass, the content of Fe 2 O 3 was 0.1% by mass, and the content of Na 2 O was 0.1%.
- the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.8% by mass, and the ratio of the content of MgO to the content of CaO is MgO / CaO is 2.0. is there.
- Table 1 shows the composition of the glass composition obtained in this example.
- the liquid phase temperature and the liquid phase viscosity were determined in the same manner as in Example 1, and the devitrification resistance was evaluated. The phase crystal species was identified. The results are shown in Table 2.
- the glass composition was melted to obtain molten glass, and the molten glass was spun to obtain glass fibers having an oval cross-sectional shape.
- the obtained glass fiber had the same composition as the said glass composition, and the fiber diameter when the cross-sectional area was converted into a perfect circle was 15 micrometers.
- the strength, elastic modulus, and glass deformation ratio of the glass fiber were calculated in exactly the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this example was used. The results are shown in Table 2.
- Example 5 In this example, first, the content of SiO 2 is 58.0% by mass, the content of Al 2 O 3 is 21.9% by mass, the content of MgO is 10.0% by mass, and the content of CaO is based on the total amount.
- a glass raw material was prepared so that the amount was 10.0% by mass and the content of Fe 2 O 3 was 0.1% by mass to obtain a glass composition.
- the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.9% by mass, and the ratio of the content of MgO to the content of CaO is MgO / CaO is 1.0. is there.
- Table 1 shows the composition of the glass composition obtained in this example.
- the liquid phase temperature and the liquid phase viscosity were determined in the same manner as in Example 1, and the devitrification resistance was evaluated. The phase crystal species was identified. The results are shown in Table 2.
- the glass composition was melted to obtain molten glass, and the molten glass was spun to obtain glass fibers having an oval cross-sectional shape.
- the obtained glass fiber had the same composition as the said glass composition, and the fiber diameter when the cross-sectional area was converted into a perfect circle was 15 micrometers.
- the strength, elastic modulus, and glass deformation ratio of the glass fiber were calculated in exactly the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this example was used. The results are shown in Table 2.
- Example 6 In this example, first, the content of SiO 2 is 57.0% by mass, the content of Al 2 O 3 is 20.0% by mass, the content of MgO is 12.0% by mass, and the content of CaO is based on the total amount.
- a glass raw material was prepared so that the amount was 10.9% by mass and the content of Fe 2 O 3 was 0.1% by mass to obtain a glass composition.
- the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.9% by mass, and the ratio of MgO content to CaO content is MgO / CaO of 1.1. is there.
- Table 1 shows the composition of the glass composition obtained in this example.
- the liquid phase temperature and the liquid phase viscosity were determined in the same manner as in Example 1, and the devitrification resistance was evaluated. The phase crystal species was identified. The results are shown in Table 2.
- the glass composition was melted to obtain molten glass, and the molten glass was spun to obtain glass fibers having an oval cross-sectional shape.
- the obtained glass fiber had the same composition as the said glass composition, and the fiber diameter when the cross-sectional area was converted into a perfect circle was 15 micrometers.
- the strength, elastic modulus, and glass deformation ratio of the glass fiber were calculated in exactly the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this example was used. The results are shown in Table 2.
- a fiber reinforced resin molded article was produced in the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this example was used, and the fiber reinforced resin was subjected to a tensile test The strength of the molded body was calculated. The results are shown in Table 2.
- Example 1 the liquid phase was exactly the same as in Example 1 except that so-called S glass (SiO 2 ; 64 to 66%, Al 2 O 3 ; 24 to 26%, MgO; 9 to 11%) was used. While calculating
- the glass composition is melted to obtain molten glass, and when the molten glass is spun, devitrification occurs in the molten glass, and spin cutting frequently occurs, so that a glass fiber having an oval cross-sectional shape is obtained.
- I could't.
- the glass fiber drawn from the platinum alloy nozzle cannot be prevented from curling due to surface tension, and the glass fiber has a substantially round cross-sectional shape. It was.
- the obtained glass fiber had the same composition as the said glass composition, and the fiber diameter was 15 micrometers.
- the glass fiber obtained in this comparative example has a substantially circular cross-sectional shape as described above, the glass deformation ratio, the strength and elastic modulus of the glass fiber, and the strength of the fiber reinforced resin molded body are calculated. Not done. The results are shown in Table 2.
- the liquid phase temperature and the liquid phase viscosity were determined in the same manner as in Example 1, and the devitrification resistance was evaluated. The phase crystal species was identified. The results are shown in Table 2.
- the glass composition was melted to obtain molten glass, and the molten glass was spun to obtain glass fibers having an oval cross-sectional shape.
- the obtained glass fiber had the same composition as the said glass composition, and the fiber diameter when the cross-sectional area was converted into a perfect circle was 15 micrometers.
- the strength, elastic modulus, and glass deformation ratio of the glass fiber were calculated in exactly the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this comparative example was used. The results are shown in Table 2.
- a fiber reinforced resin molded body was produced in the same manner as in Example 1 except that the glass fiber having the oval cross-sectional shape obtained in this comparative example was used, and the fiber reinforced resin was subjected to a tensile test. The strength of the molded body was calculated. The results are shown in Table 2.
- Devitrification resistance A indicates that no crystals are precipitated, B indicates that crystals are deposited on a part of the surface, and C indicates that crystals are deposited on the surface and inside. .
- Initial phase of devitrification cor ... cordierite, ano ... anorthite, mul ... mullite, cri ...
- the cross-sectional shape of the cristobalite glass fiber is a circle that can produce a non-circular cross-sectional shape. Here, an ellipse is actually created and the deformation ratio is measured.
- the strength and the like which are the properties of the glass fiber, and the strength of the molded body cannot be measured. In the table, “ND” indicates that the test was not performed, and “-” indicates that the measurement could not be performed due to the shape of the obtained fiber.
- the glass fibers having an oval cross-sectional shape of Examples 1 to 6 have a strength of 4.0 GPa or more and an elastic modulus of 85 GPa or more, and have excellent strength and elastic modulus. . Further, it is apparent that the fiber reinforced resin molded products of Examples 1 to 6 have excellent strength by being manufactured using the glass fiber having the oval cross-sectional shape.
- Comparative Example 1 does not contain CaO in the composition of the glass fiber, so that the liquid phase viscosity is low and a glass fiber having a non-circular cross-sectional shape cannot be obtained.
- the glass fiber composition has a content of Al 2 O 3 and MgO that is less than the lower limit of the present invention. Therefore, the strength and elastic modulus of the glass fiber having an oval cross-sectional shape are in Example 1. Lower than glass fiber with an oval cross-sectional shape of ⁇ 6. The strength of the fiber reinforced resin molded body of Comparative Example 2 is lower than that of the fiber reinforced resin molded bodies of Examples 1 to 6.
- the strength of the compact is increased when the glass fiber of the present invention is used as compared with the glass fiber of the E glass composition.
- the glass fiber of the present invention is used, even if the cross-sectional shape is a circular glass fiber (FIGS. 1 and 1), the glass fiber is slightly smaller than when an E glass fiber ellipse (FIGS. 1 and 4) is used.
- the strength increased.
- the molded body strength comparable to that of S glass, which is a high-strength glass ( 1 and 5) can be realized.
- the non-circular cross-sectional shape increases the contact area with the thermoplastic resin and increases the strength when the molded body is produced, as compared with the glass fiber having the circular cross-sectional shape.
- glass fibers having an oval non-circular cross-sectional shape are used, but the contact area can be changed depending on the cross-sectional shape of the glass fibers, so that it is possible to further increase the strength of the molded body by adjusting the surface area.
- the non-circular cross-sectional glass fiber of the present invention By using the non-circular cross-sectional glass fiber of the present invention, it is possible to achieve high strength of the molded product. As a result, it is possible to manufacture a thin molded product or a fine molded product while maintaining the strength, and it is possible to reduce the weight of the molded product.
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Abstract
Description
本実施例では、まず、全量に対しSiO2の含有量が60.2質量%、Al2O3の含有量が20.1質量%、MgOの含有量が10.1質量%、CaOの含有量が9.5質量%、Fe2O3の含有量が0.1質量%となるようにガラス原料を調合し、ガラス組成物を得た。前記ガラス組成物は、SiO2とAl2O3とMgOとCaOとの合計含有量が99.9質量%であり、CaOの含有量に対するMgOの含有量の比MgO/CaOが1.1である。前記ガラス組成物の組成を表1に示す。
本実施例では、まず、全量に対しSiO2の含有量が59.2質量%、Al2O3の含有量が20.1質量%、MgOの含有量が12.6質量%、CaOの含有量が8.0質量%、Fe2O3の含有量が0.1質量%となるようにガラス原料を調合し、ガラス組成物を得た。前記ガラス組成物は、SiO2とAl2O3とMgOとCaOとの合計含有量が99.9質量%であり、CaOの含有量に対するMgOの含有量の比MgO/CaOが1.6である。本実施例で得られた前記ガラス組成物の組成を表1に示す。
本実施例では、まず、全量に対しSiO2の含有量が58.2質量%、Al2O3の含有量が20.7質量%、MgOの含有量が12.0質量%、CaOの含有量が9.0質量%、Fe2O3の含有量が0.1質量%となるようにガラス原料を調合し、ガラス組成物を得た。前記ガラス組成物は、SiO2とAl2O3とMgOとCaOとの合計含有量が99.9質量%であり、CaOの含有量に対するMgOの含有量の比MgO/CaOが1.3である。本実施例で得られた前記ガラス組成物の組成を表1に示す。
本実施例では、まず、全量に対しSiO2の含有量が61.4質量%、Al2O3の含有量が19.0質量%、MgOの含有量が12.9質量%、CaOの含有量が6.5質量%、Fe2O3の含有量が0.1質量%、Na2Oの含有量が0.1%となるようにガラス原料を調合し、ガラス組成物を得た。前記ガラス組成物は、SiO2とAl2O3とMgOとCaOとの合計含有量が99.8質量%であり、CaOの含有量に対するMgOの含有量の比MgO/CaOが2.0である。本実施例で得られた前記ガラス組成物の組成を表1に示す。
本実施例では、まず、全量に対しSiO2の含有量が58.0質量%、Al2O3の含有量が21.9質量%、MgOの含有量が10.0質量%、CaOの含有量が10.0質量%、Fe2O3の含有量が0.1質量%となるようにガラス原料を調合し、ガラス組成物を得た。前記ガラス組成物は、SiO2とAl2O3とMgOとCaOとの合計含有量が99.9質量%であり、CaOの含有量に対するMgOの含有量の比MgO/CaOが1.0である。本実施例で得られた前記ガラス組成物の組成を表1に示す。
本実施例では、まず、全量に対しSiO2の含有量が57.0質量%、Al2O3の含有量が20.0質量%、MgOの含有量が12.0質量%、CaOの含有量が10.9質量%、Fe2O3の含有量が0.1質量%となるようにガラス原料を調合し、ガラス組成物を得た。前記ガラス組成物は、SiO2とAl2O3とMgOとCaOとの合計含有量が99.9質量%であり、CaOの含有量に対するMgOの含有量の比MgO/CaOが1.1である。本実施例で得られた前記ガラス組成物の組成を表1に示す。
本比較例では、いわゆるSガラス(SiO2;64~66%、Al2O3;24~26%、MgO;9~11%)を用いた以外は実施例1と全く同一にして、液相温度及び液相粘度を求めると共に、耐失透性を評価し、失透初相の結晶種を同定した。結果を表2に示す。
本比較例では、いわゆるEガラス(SiO2の含有量が52.0~56.0質量%、Al2O3の含有量が12.0~16.0質量%、MgOの含有量が0~6質量%、CaOの含有量が16~25質量%、Na2Oの含有量が0~0.8質量%、B2O3の含有量が5.0~10.0質量%)を用いた以外は実施例1と全く同一にして、液相温度及び液相粘度を求めると共に、耐失透性を評価し、失透初相の結晶種を同定した。結果を表2に示す。
失透初相:cor…コーディエライト、ano…アノーサイト、mul…ムライト、
cri…クリストバライト
ガラス繊維の断面形状は、非円形の断面形状を製造できたものを○としている。ここでは実際に長円を作成し、変形比についての測定を行っている。比較例1のガラスに関しては、非円形の断面形状のガラス繊維を製造できないこことから、ガラス繊維としての性質である強度等、及び成形体強度は測定できない。
表中、「N.D.」は試験を実施しなかったことを示し、「―」は得られた繊維の形状に起因して測定を実施することができなかったことを示す。
表2から、実施例1~6の長円形の断面形状を備えるガラス繊維は、4.0GPa以上の強度と85GPa以上の弾性率とを備え、優れた強度及び弾性率を備えることが明らかである。また、実施例1~6の繊維強化樹脂成形体は、前記長円形の断面形状を備えるガラス繊維を用いて製造されることにより、優れた強度を備えていることが明らかである。
Claims (8)
- ガラス繊維の原料となるガラス組成物を溶融して溶融ガラスとし、該溶融ガラスから紡糸された非円形の断面形状を備えるガラス繊維において、
該ガラス繊維は、全量に対しSiO2の含有量が57.0~63.0質量%、Al2O3の含有量が19.0~23.0質量%、MgOの含有量が10.0~15.0質量%、CaOの含有量が5.5~11.0質量%、CaOの含有量に対するMgOの含有量の比MgO/CaOが0.8~2.0の範囲にある組成を備えることを特徴とする非円形の断面形状を備えるガラス繊維。 - 請求項1記載の非円形の断面形状を備えるガラス繊維において、該断面形状は扁平形状であることを特徴とする非円形の断面形状を備えるガラス繊維。
- 請求項2記載の非円形の断面形状を備えるガラス繊維において、前記扁平形状は、楕円形、長円形、繭形からなる群から選択される1つの形状であることを特徴とする非円形の断面形状を備えるガラス繊維。
- 請求項1乃至請求項3のいずれか1項記載の非円形の断面形状を備えるガラス繊維において、前記溶融ガラスは、温度を低下させたときに最初に析出する結晶がコーディエライトの単独結晶又はコーディエライトとアノーサイトとの混合結晶であることを特徴とする非円形の断面形状を備えるガラス繊維。
- 請求項1乃至請求項4のいずれか1項記載の非円形の断面形状を備えるガラス繊維において、前記溶融ガラスは、1000ポイズ温度と液相温度との差である作業温度範囲が50℃以上であり、さらに液相温度に対応する粘度である液相粘度が3000ポイズ以上であることを特徴とする非円形の断面形状を備えるガラス繊維。
- 請求項1乃至請求項5のいずれか1項記載の非円形の断面形状を備えるガラス繊維において、前記ガラス繊維は、その強度が4.0GPa以上であり、その弾性率が85GPa以上であることを特徴とする非円形の断面形状を備えるガラス繊維。
- ガラス繊維の原料となるガラス組成物を溶融して溶融ガラスとし、該溶融ガラスから紡糸された非円形の断面形状を備えるガラス繊維において、
該溶融ガラスは、1000ポイズ温度と液相温度との差である作業温度範囲が50℃以上であり、さらに液相温度に対応する粘度である液相粘度が3000ポイズ以上であることを特徴とする非円形の断面形状を備えるガラス繊維。 - 全量に対しSiO2の含有量が57.0~63.0質量%、Al2O3の含有量が19.0~23.0質量%、MgOの含有量が10.0~15.0質量%、CaOの含有量が5.5~11.0質量%、CaOの含有量に対するMgOの含有量の比MgO/CaOが0.8~2.0の範囲にある組成を備え、非円形の断面形状を備えるガラス繊維と熱可塑性樹脂とを混合溶融し射出成形してなることを特徴とする繊維強化樹脂成形体。
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US10329408B2 (en) * | 2015-12-31 | 2019-06-25 | Lotte Advanced Materials Co., Ltd. | Thermoplastic resin composition and article comprising the same |
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FR3057573A1 (fr) | 2016-10-19 | 2018-04-20 | Arkema France | Utilisation de fibres de verre a section circulaire dans un melange comprenant un polyamide semi-aromatique et un polyamide aliphatique pour ameliorer les proprietes mecaniques dudit melange |
FR3071503B1 (fr) | 2017-09-25 | 2020-06-19 | Arkema France | Utilisation d'une composition de copolyamide comme matrice de materiau charge avec des fibres de verre a section circulaire pour limiter le gauchissement |
WO2019126252A1 (en) | 2017-12-19 | 2019-06-27 | Ocv Intellectual Capital, Llc | High performance fiberglass composition |
RU2709042C1 (ru) * | 2019-04-24 | 2019-12-13 | Акционерное общество "Научно-производственное объединение Стеклопластик" | Стекло для производства непрерывного стекловолокна |
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- 2012-12-04 JP JP2013548248A patent/JP5987839B2/ja active Active
- 2012-12-04 CN CN201280060377.5A patent/CN103974917B/zh active Active
- 2012-12-04 EP EP12855120.7A patent/EP2789591B1/en active Active
- 2012-12-04 WO PCT/JP2012/081402 patent/WO2013084895A1/ja active Application Filing
- 2012-12-05 TW TW101145622A patent/TWI588110B/zh active
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JP2016521777A (ja) * | 2013-06-05 | 2016-07-25 | ソルベイ スペシャルティ ポリマーズ ユーエスエー, エルエルシー | 携帯電子デバイス用の充填材入りポリマー組成物 |
WO2017033245A1 (ja) * | 2015-08-21 | 2017-03-02 | 日東紡績株式会社 | ガラス繊維の製造方法 |
CN107922252A (zh) * | 2015-08-21 | 2018-04-17 | 日东纺绩株式会社 | 玻璃纤维的制造方法 |
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US10329408B2 (en) * | 2015-12-31 | 2019-06-25 | Lotte Advanced Materials Co., Ltd. | Thermoplastic resin composition and article comprising the same |
Also Published As
Publication number | Publication date |
---|---|
EP2789591A4 (en) | 2015-04-29 |
CN103974917B (zh) | 2017-06-13 |
KR20140101824A (ko) | 2014-08-20 |
EP2789591B1 (en) | 2018-09-05 |
TW201339115A (zh) | 2013-10-01 |
TWI588110B (zh) | 2017-06-21 |
US20140343211A1 (en) | 2014-11-20 |
JPWO2013084895A1 (ja) | 2015-04-27 |
JP5987839B2 (ja) | 2016-09-07 |
CN103974917A (zh) | 2014-08-06 |
EP2789591A1 (en) | 2014-10-15 |
US9242892B2 (en) | 2016-01-26 |
KR101998385B1 (ko) | 2019-07-09 |
HK1199011A1 (en) | 2015-06-19 |
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