WO2005056892A1 - 高強度ポリエチレン繊維 - Google Patents
高強度ポリエチレン繊維 Download PDFInfo
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- WO2005056892A1 WO2005056892A1 PCT/JP2004/018004 JP2004018004W WO2005056892A1 WO 2005056892 A1 WO2005056892 A1 WO 2005056892A1 JP 2004018004 W JP2004018004 W JP 2004018004W WO 2005056892 A1 WO2005056892 A1 WO 2005056892A1
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- fiber
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- strength polyethylene
- fibers
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
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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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12625—Free carbon containing component
-
- 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
- Y10T428/2933—Coated or with bond, impregnation or core
-
- 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
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2967—Synthetic resin or polymer
Definitions
- the present invention relates to high-performance textiles such as various sports clothing, bulletproof, protective clothing, protective gloves and various safety articles, various rope products such as tag ropes, mooring ropes, yacht ropes, architectural ropes, fishing lines, blind cables, and the like. Braided products, fishing nets, net products such as ball nets, chemical filters, reinforcing materials such as battery separators, various nonwoven fabrics, curtain materials such as tents, and sports and speakers such as hermets and skis.
- the present invention relates to a novel high-strength polyethylene fiber that can be applied to a wide range of industries, such as a reinforcing fiber for a cone, a pre-predator, and a composite for concrete reinforcement.
- high-strength polyethylene fibers it is known that high-strength and high-modulus fibers can be obtained by so-called "gel spinning” using ultra-high molecular weight polyethylene as a raw material. It is widely used (for example, Patent Documents 1 and 2).
- Patent Document 1 Japanese Patent Publication No. 60-47922
- Patent Document 2 Japanese Patent Publication No. 64-8732
- the inventors have found that there is a correlation between the knot strength and the fine crystal size, orientation, and variation of these structural parameters in each fiber portion.
- the ideal state is such that the fiber can be flexibly and arbitrarily bent microscopically and macroscopically. At this time, it is necessary to minimize the possibility of destruction of the fiber microstructure due to bending. At this time, it is necessary to increase the crystal orientation and crystal size of the fiber as high as possible. At the same time, if it is too high, the contrast (contrast) with the remaining amorphous region is too sharp, so that the knot strength is increased. Gets worse.
- the inventors have found that it is important to make the crystal size and orientation at each part of the fiber approximately the same. This is because, if there is a structural unevenness in the crystal size and orientation between each part of the microstructure, particularly between adjacent parts, stress concentration occurs from the nonuniform part when deformation is given, As a result, the nodule strength is reduced.
- the stress distribution generated in the structure can be measured by using, for example, Raman scattering method as shown by Young et al. (Journal of Materials Science, 29, 510 (1994)).
- the Raman band, or normal vibration position is determined by solving an equation composed of the force constants of the molecular chains constituting the fiber and the shape (internal coordinates) of the molecule (EB Wilson, JC Deems, P. J. Cross Molecular Vibrations, Dover Publicat ions (1980)).
- EB Wilson, JC Deems P. J. Cross Molecular Vibrations, Dover Publicat ions (1980)
- As a theoretical explanation of this phenomenon for example, as described by Wool et al., As the fiber is distorted, the molecule also changes its reference vibration position as a result of distortion (Macromolecules). , 16, 1907 (1983)).
- the stress induced by the site in the fiber when external strain is applied will be different. Since this change can be detected as a change in the band profile, when stress is applied to the fiber, the relationship between the intensity and the change in the Raman band profile can be examined to determine the stress distribution induced inside the fiber. Become. That is, as described later, the fiber having a small structural nonuniformity V has a Raman shift factor in a certain region.
- the fiber has an uneven structure in the cross-sectional direction of the fiber such as a skin core structure, the fiber is more easily broken in a bent state.
- the inventors of the present invention have conducted intensive studies and found that fibers having a small structural non-uniformity are strong in a tensile state in a bent state. In other words, fibers with small structural non-uniformity have a higher ratio of knot strength to tensile strength.
- the disadvantages of the high-strength polyethylene fibers obtained by the "gel spinning method” disclosed so far are different from those of fibers obtained by the ordinary melt spinning method or the like, depending on the state after spinning from the nozzle hole. That is, uneven strength occurs between the single yarn fibers. For this reason, there is a problem that a single yarn having extremely low strength is present, particularly as compared with the average fineness of the yarn. If a single fiber having a strength lower than the average strength is present in the fiber, for example, when the fiber is subjected to friction. In particular, this fiber is used for fishing line 'rope' bulletproof and protective clothing. In such a case, if thick and thin unevenness is present, stress concentrates on a thin portion and breakage occurs.
- the present invention is to provide a high-strength polyethylene fiber in which these problems are improved, the variation in strength between single yarns is small, and the uniformity is excellent.
- the present inventors have studied diligently, and have found that the high strength, uniform internal structure of the fiber, and the variation in the strength of the filament constituting the fiber, which have been difficult to obtain by a method such as the conventional gel spinning method, have been found. A small number of new polyethylene fibers were successfully obtained and the present invention was achieved.
- the present invention has the following configurations.
- a high-strength polyethylene multifilament characterized in that the crystal size derived from a monoclinic is 9 nm or less.
- a high-strength polyethylene multifilament characterized in that the ratio of the crystal size derived from the (200) and (020) diffraction planes of the orthorhombic crystal is 0.8 or more and 1.2 or less.
- High-strength polyethylene multifilament having an average strength of 20 cNZdTex or more.
- the intrinsic viscosity [7?] Of the high-molecular-weight polyethylene used as the raw material must be 5 or more, preferably 8 or more, and more preferably 10 or more. It is. If the intrinsic viscosity is less than 5, a high-strength fiber having a desired strength exceeding 20 cNZdtex cannot be obtained.
- the ultrahigh molecular weight polyethylene in the present invention is characterized in that its repeating unit is substantially ethylene, and a small amount of other monomers such as ⁇ -olefin, acrylic acid and its derivatives, methacrylic acid and its derivatives. It may be a copolymer with a derivative, vinyl silane or a derivative thereof, or a copolymer of these copolymers, a copolymer with an ethylene homopolymer, and a blend with another homopolymer such as ⁇ -olefin. It may be a body.
- ⁇ -olefins such as propylene and butene-11 and copolymers to contain short-chain or long-chain branches to some extent is important for the production of this fiber, especially for spinning during spinning and drawing. It will provide stability and is more preferred. However, if the content other than ethylene is excessively increased, it may be a factor to hinder the stretching, and from the viewpoint of obtaining a high-strength fiber having a high elastic modulus, 0.2 mol% or less, preferably 0.1 mol% in a monomer unit. The following is desirable. Of course, a homopolymer of ethylene alone may be used.
- a volatile organic solvent such as decalin'tetralin.
- Room-temperature solids or non-volatile solvents result in very poor spinning productivity.
- the reason is that by using a volatile solvent, the solvent existing on the surface of the gel yarn after being discharged from the spinneret in the initial stage of spinning is slightly evaporated. At this time, the cooling effect by the latent heat of evaporation accompanying the evaporation of the solvent We believe that the spinning condition is more stable, but it is not clear.
- the concentration is preferably 30% by weight or less, more preferably 20% by weight or less.
- the spinneret temperature is set to 30 ° C. or higher from the melting point of polyethylene and to the boiling point of the solvent used. In the temperature range near the melting point of polyethylene, the viscosity of the polymer is too high to take up at a rapid rate. Further, if the temperature is higher than the boiling point of the solvent used, the solvent boils immediately after leaving the spinneret, so that thread breakage frequently occurs immediately below the spinneret, which is not preferable.
- the first is to supply a high-temperature inert gas that is pre-regulated independently to each of the discharged solutions discharged from the orifices under the nozzle.
- the velocity of the inert gas is preferably within 1 mZs. If it exceeds lmZs, the solvent evaporation rate becomes faster, and a non-uniform structure is formed in the yarn cross-sectional direction. Further, the fibers may be broken.
- the temperature of the inert gas at this time is preferably in the range of ⁇ 10 degrees with respect to the nozzle temperature, and more preferably ⁇ 5 degrees.
- the second is to rapidly and uniformly cool the discharged gel thread discharged from the spinneret, and the difference in speed between the cooling medium and the gel thread.
- the cooling rate is preferably 1000 ° Zs or more, more preferably 3000 ° Zs or more.
- the integrated value of the speed difference the accumulated speed difference is preferably 30 mZmin or less. More preferably, it is 15 mZmin or less. As described above, it is possible to obtain an undrawn yarn having excellent uniformity.
- the cumulative speed difference can be calculated as follows.
- the following method can be considered, but the present invention is not limited thereto.
- the unstretched yarn thus obtained is further heated, stretched several times while removing the solvent, and in some cases stretched in multiple stages to produce a high-strength polyethylene fiber having excellent internal structure uniformity as described above. It becomes possible.
- the deformation rate of the fiber during drawing is an important parameter. Before the deformation rate of the fiber is too high and a sufficient draw ratio is reached, the fiber breaks, which is not preferable. Also, if the fiber deformation rate is too slow, the molecular chains relax during stretching.
- the deformation speed is not less than 0.005 s-l and not more than 0.5 s-l. More preferably, it is from 0.1 Ols-1 to 0.1 ls- ⁇ .
- the stretching speed Z is the length of the heating section.
- the draw ratio of the fiber be 10 times or more, preferably 12 times or more, and more preferably 15 times or more.
- the crystal size derived from the monoclinic is desirably 9 nm or less, more desirably 8 nm or less, and particularly desirably 7 nm or less. If the crystal size is larger than 9 nm, when the fiber is deformed, the crystallites derived from monoclinic and orthorhombic Stress concentration occurs between the crystallites, which may be a starting point of destruction, which is not desirable.
- the ratio of the crystal size derived from the (200) and (020) diffraction planes of the orthorhombic crystal is 0.8 or more 1.
- the crystal size ratio is less than 0.8 or larger than 1.2, the crystal grows selectively in one axial direction when considering the crystal form. This is not desirable because collisions may occur between the surrounding microcrystals, leading to stress concentration and structural destruction.
- stress Raman shift factor one is desirably one 5. Ocm- iZ kNZdTex) or more, and more preferably 4. 5cm- iZ kNZdTex) or more, particularly preferably 4. Ocm "1 Z (cNZdTex) When the stress Raman shift factor is less than ⁇ 5 Ocm ′′ 1 / (cN / dTex), it indicates the existence of a stress distribution due to stress concentration, which is not desirable.
- the average strength is desirably 20 cNZdTex or more, more desirably 22 cNZdTeX or more, and particularly desirably 24 cNZdTex or more. If the average strength is less than 20cNZdTex, the strength as a product may be insufficient when applying applied products, which is not desirable.
- the retention rate of the knot strength of the filaments constituting the high-strength polyethylene multifilament is preferably 40% or more, more preferably 43%, and particularly preferably 45% or more. If the retention of the knot strength is less than 40%, the yarn may be damaged during the process of producing an applied product, which is undesirable.
- the CV which indicates the variation in single yarn strength of the filaments constituting the high-strength polyethylene multifilament, is desirably 25% or less, more desirably 23% or less, and particularly desirably 21% or less. If the CV, which indicates the variation in single yarn strength, is greater than 25%, it is not desirable because it will be reflected in the variation in the locality of the product when the applied product is created.
- the elongation at break is preferably 2.5% or more and 6.0% or less, more preferably 3.0% or more and 5.5% or less, and particularly preferably 3.5% or more and 5.0% or less. % Or less.
- the elongation at break is less than 2.5%, operability due to breakage of single yarn of fiber during the process of manufacturing This is undesirable because it causes a decrease. If the elongation at break exceeds 6.0%, the effects of permanent deformation cannot be ignored when used as a product, which is not desirable.
- the single yarn fineness is desirably 10 dTex or less, more desirably 8 dTex or less, and particularly desirably 6 dTex or less. If the single-filament fineness is 10 OdTex or more, it is not desirable because it is difficult to enhance the product performance up to the initial mechanical properties in the fiber manufacturing process.
- the melting point of the fiber is desirably 145 ° C or higher, more desirably 148 ° C or higher. If the melting point of the fiber is 145 ° C or more, the fiber can withstand higher temperatures in a process requiring heating, which is desirable from the viewpoint of labor saving of treatment.
- the high-strength polyethylene fiber according to the present invention is a polyethylene fiber having a high strength, a high elastic modulus, a uniform internal structure of the fiber, and a small variation in performance, and there is no possibility that a locally weak portion is generated. It can be used for high-performance textiles such as various sports clothing, bulletproof, protective clothing, protective gloves and various safety items.
- the bulletproof / protective clothing of the present invention is produced using the above-mentioned novel high-strength polyethylene fiber as a raw yarn, but may be mixed with other conventionally known fibers.
- Carpet bulletproof and protective clothing are, for example, sheets made of woven fabric or impregnated with resin while the yarns are aligned in one direction, and laminated so that they are orthogonal to each other. May be manufactured by laminating a plurality of the above materials.
- the protective gloves of the present invention are manufactured using the above-mentioned new high-strength polyethylene fibers as raw yarns, but other known fibers may be mixed depending on the design or function. To add functionality, it is mixed with hygroscopic fibers such as cotton to absorb sweat, etc., and mixed with urethane-based high elongation fibers to improve the fit when worn. It is mentioned.
- the design can be mixed with colored yarn to give the gloves a color to make dirt less noticeable and improve fashionability.
- Examples of a method of mixing a high-strength polyethylene fiber filament with another fiber include an interlace force pudding using air entanglement, and a filament is opened by applying a voltage.
- other fibers may be mixed during the production of the spun yarn, or after the spun yarn is produced, it may be mixed with other fibers using the above-described mixing method. Crush with mixing.
- the high-strength polyethylene fibers according to the present invention include various rope products such as tag ropes' mooring ropes, yacht ropes, construction ropes, various braid products such as fishing lines and blind cables, fishing nets and nets such as ball nets. Available for products. High strength ⁇ High elastic modulus, polyethylene fiber with uniform fiber internal structure and small variation in performance. There is no possibility of local weak spots. It is possible to
- the ropes of the present invention are produced using the above-mentioned novel high-strength polyethylene fibers as raw yarns, but may be mixed with other conventionally known fibers.
- the surface may be coated with another material such as low molecular weight polyolefin or urethane resin.
- the form of the rope may be a twisted structure such as three-stroke or six-stroke, a knitted structure such as eight-stroke, twelve-strike, or double braided rope, or a helical outer periphery of the core with yarn or strand.
- An ideal rope can be designed according to the application and performance, such as a coated double blade structure.
- the ropes of the present invention have a small decrease in performance due to moisture absorption, water absorption, and the like, and have a small diameter, high strength, no kink, and good storage properties.
- the nets of the present invention are produced using the above-mentioned novel high-strength polyethylene fibers as raw yarns, but may be mixed with other conventionally known fibers.
- the outer periphery may be coated with another material such as low molecular weight polyolefin or urethane resin.
- Examples of the form of the net include knots, no knots, and Russell structures.
- An ideal net may be designed according to the application and performance. Since the nets of the present invention have strong netting and excellent bending fatigue resistance and abrasion resistance, various nets for fisheries such as trawl nets, fixed nets, trawl nets, moji nets, gill nets, beast-proofing, and bird-proofing It is useful for various industrial or consumer nets such as various agricultural nets, golf nets, various nets for sports such as ball nets, safety nets, various nets for civil engineering, electrical construction, and construction work.
- the high-strength polyethylene fiber according to the present invention has high chemical resistance, light resistance and weather resistance. Because of its superiority, reinforcing materials such as chemical filters and battery separators can be used for various nonwoven fabrics. From the novel high-strength polyethylene fibers of the present invention, high-strength polyethylene cut fibers can be obtained. High-strength polyethylene fiber with high elastic modulus, uniform internal structure of fiber, and less variation in performance.High uniformity prevents uneven suction when suctioning water under reduced pressure in the process of manufacturing nonwoven fabric by wet process. It is difficult for spots to occur. When such spots occur, the strength and puncture resistance of the nonwoven fabric are reduced.
- the single fiber fineness of the cut fiber is not particularly limited, but is usually 0.1 to 20 dpf. Reinforcement fibers of concrete and cement and ordinary non-woven fabrics have high fineness, and high-density non-woven fabrics such as chemical filters and battery separators have low fineness. Just fine.
- the length of the cut fiber that is, the cut length of the fiber, is preferably 70 mm or less, more preferably 50 mm or less. If the cut length is too long, the fibers tend to be entangled with each other, making uniform dispersion difficult.
- the fiber cutting method includes, for example, a guillotine method and a rotary cutting method, and is not particularly limited.
- the high-strength polyethylene fiber according to the present invention can be used for curtain materials such as tents, or reinforcing fibers for sports such as helmets and skis, for speaker cones, for pre-predaders, and for composites such as concrete reinforcement. It is.
- the fiber-reinforced concrete product of the present invention can be obtained by using the above-mentioned novel high-strength polyethylene fiber as a reinforcing fiber.
- the strength such as compressive strength, bending strength, and toughness, which are uniformly high throughout, are improved, and the impact resistance and durability are excellent.
- the filament For the strength and elastic modulus of the filament (single fiber), 10 single yarns (filaments) were randomly sampled from one multifilament to be measured. When the number of filaments was less than 10, all single yarns (filaments) were measured.
- the filament For the strength and elastic modulus of the filament (single fiber), 10 single yarns (filaments) were randomly sampled from one multifilament to be measured. When the number of filaments was less than 10, all single yarns (filaments) were measured.
- Knot strength retention Average value of single yarn knot strength Z Average value of single yarn strength X 100
- Differential scanning calorimeter measurement was performed using Perkin Elmer's ⁇ DSC7 Model '', and a sample cut in advance to 5 mm or less was filled and sealed in an aluminum pan at about 5 mg, and a similar empty aluminum pan was used as a reference at 10 ° C.
- the temperature was raised from room temperature to 200 degrees at a heating rate of Z minutes, and the endothermic peak was determined.
- the temperature at the peak top of the melting peak appearing on the lowest temperature side of the obtained curve was defined as the melting point.
- the Raman scattering spectrum was measured by the following method.
- the Raman measurement device (spectrometer) was measured using a Renishaw system 1000.
- a helium-neon laser (wavelength: 633 nm) was used as the light source, and the fiber was set so that the fiber axis was parallel to the polarization direction.
- the fiber is attached to a jig whose length can be adjusted with a micrometer, and the cardboard holding the single fiber is carefully cut out, a predetermined load is applied to the fiber, and the fiber is placed on the microscope stage of the Raman scattering apparatus.
- Raman spectrum was measured. At this time, the stress and strain acting on the fiber were measured simultaneously.
- Raman measurement was performed in Static Mode with a resolution of 1 cm-1 or less per pixel for a measurement range of 850 cm-1 to 1350 cm-1. As the peak used for the analysis, a band of 1128 cm-1 assigned to the symmetric stretching mode of the CC skeleton bond was adopted.
- the profile is approximated as a composite of two Gaussian functions, which results in a good curve. I was able to fit. It was found that the peak positions of the two Gaussian functions did not match when the distortion was applied, and their distance was far away. In such a case, in the present invention, the band position is not considered as the peak of the peak profile, The position of the center of gravity of the peak was defined as the band peak position. The definition is shown in Equation 1 (center of gravity, ⁇ x>). Create a graph that plots the stress exerted on the fiber with the band center of gravity X>. The slope of the approximate curve passing through the origin using the least squares method of the obtained plot was defined as the stress Raman shift factor.
- ⁇ X> J X f (x) dx Z J f (x) dx
- the crystal size and orientation evaluation were measured using the X-ray diffraction method.
- X-ray source a large synchrotron radiation facility SPring8 was used as the X-ray source, and a BL24XU hatch was used.
- X-rays extracted through the undulator were monochromated through a monochromator ((111) plane of silicon crystal), and then set to converge at the sample position using a phase zone plate.
- the size of the focal point is adjusted so that the diameter in both the vertical and horizontal directions is 3 m or less.
- the sample fiber is placed on the XYZ stage so that the fiber axis is horizontal.
- the stage was slightly moved while detecting using a separately installed Thomson scattering detector, and the Thomson scattering intensity was measured.
- the point where the intensity became maximum was determined as the center of the fiber. Since the X-ray intensity is very high, if the sample exposure time is too long, the sample will be damaged. Therefore, the exposure time during X-ray diffraction measurement was set to within 2 minutes. Under these measurement conditions, the beam was applied to five or more points at substantially equal intervals from the skin to the center of the fiber, and the X-ray diffraction pattern was measured at each point.
- the X-ray diffraction pattern was recorded using a Fuji imaging plate. Data was read out using Fuji microluminography.
- the recorded image data was transferred to a personal computer, where the data in the equatorial and azimuth directions were cut out, and the line width was evaluated.
- the half-width ⁇ -force crystal size (ACS) of the diffraction profile in the equatorial direction was calculated using the Sierra equation [Equation 1] shown below.
- the identification of the diffraction peak was performed according to Bunn et al. (Trans Faraday Soc, 35, 482 (1939)). As the crystal size, an average value obtained by measuring and evaluating five or more points was adopted. CV was calculated using the following equation.
- ⁇ is the wavelength of the used X-ray
- 2 ⁇ is the diffraction angle
- the orientation angle OA was obtained by taking the half width of the profile obtained by scanning in the azimuthal direction for each of the obtained two-dimensional diffraction patterns. The average value was adopted as the orientation angle. CV was calculated using the following equation.
- the crystal size was measured using the X-ray diffraction method.
- the equipment used for the measurement was Rigaku lint 2500.
- a copper counter cathode was selected as the X-ray source.
- the operation output was 40kV200mA.
- the collimator was set to 0.5 mm, and the fiber was attached to the fiber sample stand.
- the counter was scanned in the equatorial and meridian directions to measure the X-ray diffraction intensity distribution. At this time, 1Z2 ° was selected for the light receiving slit for both vertical and horizontal limits.
- Crystal size (ACS) was calculated using the Sierra equation [Equation 2] shown below.
- the wavelength of the X-ray used 2 ⁇ is the diffraction angle
- ⁇ s is the half-width of the X-ray beam itself measured using a standard sample.
- the crystal size of the monoclinic was also determined by calculating ACS using the Sierra equation, and the line width force of the diffraction point derived from the monoclinic (010).
- the diffraction peak was identified according to Seto et al. (Jap. J. Appl. Phys., 7, 31 (1968)).
- the ratio of the orthorhombic crystal size was determined by dividing the crystal size derived from the (200) diffraction plane by the crystal size derived from the (020) diffraction plane.
- Intrinsic viscosity 21 Ultra high molecular weight polyethylene of OdlZg and decahydronaphthalene were mixed at a weight ratio of 8:92 to form a slurry liquid. The material was melted with a twin screw extruder equipped with a mixing and conveying unit, and the obtained transparent homogeneous material was arranged in a circular shape with 30 holes and a diameter of 0.8 mm from an orifice of 1.8 g / min. Extruded. The extruded dissolved material is uniformly cooled by passing through a cylindrical flow tube filled with a constant flow of water through an air gap of 10 mm, and a gel thread is formed at a spinning speed of 60 mZmin without removing the solvent. To I took it.
- the cooling rate of the fiber was 9667 degrees Zs, and the cumulative rate difference was 5 mZmin.
- the gel fiber was drawn in a nitrogen heating oven at a draw ratio of 3 times without winding, and the drawn yarn was wound. Then, the fiber was stretched at 149 degrees at a maximum draw ratio of 6.5 times to obtain drawn yarns of various draw ratios. Table 1 shows the physical properties of the obtained polyethylene fiber.
- Example 1 A very small amount of decalin was evaporated, and a polyethylene fiber was produced in the same manner as in Example 1, except that the fiber was passed through an air gap in a nitrogen atmosphere.
- the stretching ratio in the second step was 4.5 and 6.0.
- the temperature of the nitrogen used for the taenchi was controlled at 178 degrees.
- temperature control was not performed.
- Table 1 shows the physical property values of the obtained fibers. It was found that the material had excellent uniformity and high strength.
- a 1.6-gZ single-hole discharge amount was supplied to a 400-hole die with a diameter of 0.6 mm by a light pump.
- nitrogen gas adjusted to 100 degrees at a high speed of 1.2 mZs was carefully rectified, and the decalin on the fiber surface was adjusted so as to hit the yarn as evenly as possible.
- Evaporation was aggressive, and decalin remaining in the fiber was further evaporated by a nitrogen flow set at 115 ° C, and was taken up at a speed of 80 mZ by a Nelson-shaped roller installed downstream of the nozzle. At this time, the length of the taeng section was 1. Om, the cooling rate of the fiber was 100 degrees Zs, and the cumulative speed difference was 80 mZmin. Subsequently, the obtained fiber is heated in a 125 ° C heating oven. The fiber was stretched 4.0 times, and subsequently, the fiber was stretched 4.1 times in a heating oven set at 149 ° C. Uniform fibers could be obtained without breaking during the process. Table 1 shows the physical property values of the obtained fibers.
- a drawn yarn was obtained in the same manner as in the Example, except that a nitrogen wind of 0.5 mZs was applied at 50 degrees and 0.5 mZs from the position 10 mm from directly below the orifice, and the gel yarn was obtained by applying the nitrogen air as evenly as possible to the flow. .
- the cooling rate of the fiber at this time was 208 degrees Zs, and the cumulative speed difference was 80 mZmin.o
- a screw-type kneader set at a temperature of 230 ° C while dispersing a slurry-like mixture of 15 wt% of the main component polymer (C) of ultrahigh molecular weight polymer having an intrinsic viscosity of 10.6 and 85% of paraffin wax. Dissolved and supplied a 2. OgZ single-hole discharge rate to a 400-hole base with a diameter of 1. Omm set to 190 ° by a lightweight pump. The air gap was 30 mm and the spin bath was filled with 15 degree n-xane. The immersed fiber was picked up with a Nelson roller at a speed of 50 mZ.
- the cooling rate of the fiber was 4861 ° Zs, and the cumulative speed difference was 50 mZmin.
- the obtained fiber was drawn 3.0 times under a heating oven of 125 degrees, and after drawing this fiber 3 times in a heating oven set at 149 degrees, it was again drawn 1.5 times. Stretched. Uniform fibers could be obtained without breaking during the process. Table 1 shows the physical property values of the obtained fibers.
- the fiber before drawing drawn and wound under the same conditions as in Comparative Example 1 was immersed in ethanol for 3 days to remove decalin remaining in the yarn, and then air-dried for 2 days to prepare xerogel fiber. Further, the xerogel fiber was drawn 4.0 times in a heating oven at 125 ° C. Subsequently, the fiber was stretched 4.3 times in a heating oven set at 155 ° C. Uniform fibers could be obtained without breaking during the process.
- the high-strength polyethylene fiber according to the present invention has a high strength, a high elastic modulus and an internal structure of the fiber. Since it is a uniform polyethylene fiber, high performance textiles such as various sports clothing and bulletproof 'protective clothing' protective gloves and various safety articles, tag ropes' various mooring ropes, yacht ropes, construction ropes and other rope products, fishing line, Various braided products such as blind cables, fishing nets, net products such as ball nets, chemical filters, battery separators and other reinforcing materials or nonwoven fabrics, curtain materials such as tents, and sports such as hermets and skis It can be applied to a wide range of industries, such as reinforcing fibers for composites such as for speaker cones, pre-predators, and concrete reinforcement.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/582,624 US7811673B2 (en) | 2003-12-12 | 2004-03-12 | High strength polyethylene fiber |
DE602004031362T DE602004031362D1 (de) | 2003-12-12 | 2004-12-03 | Hochfeste polyethylenfaser |
DK04820163.6T DK1696056T3 (da) | 2003-12-12 | 2004-12-03 | Højstyrke-polyethylenfiber |
SI200431661T SI1696056T1 (sl) | 2003-12-12 | 2004-12-03 | Visokotrdno polietilensko vlakno |
EP04820163A EP1696056B1 (en) | 2003-12-12 | 2004-12-03 | High strength polyethylene fiber |
AT04820163T ATE498028T1 (de) | 2003-12-12 | 2004-12-03 | Hochfeste polyethylenfaser |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003414574 | 2003-12-12 | ||
JP2003-414574 | 2003-12-12 | ||
JP2004-003564 | 2004-01-09 | ||
JP2004003564 | 2004-01-09 | ||
JP2004-092305 | 2004-03-26 | ||
JP2004092305 | 2004-03-26 | ||
JP2004-201430 | 2004-07-08 | ||
JP2004201430 | 2004-07-08 |
Publications (1)
Publication Number | Publication Date |
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WO2005056892A1 true WO2005056892A1 (ja) | 2005-06-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/018004 WO2005056892A1 (ja) | 2003-12-12 | 2004-12-03 | 高強度ポリエチレン繊維 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7811673B2 (ja) |
EP (2) | EP1696056B1 (ja) |
AT (1) | ATE498028T1 (ja) |
DE (1) | DE602004031362D1 (ja) |
DK (2) | DK1696056T3 (ja) |
ES (1) | ES2397554T3 (ja) |
PT (1) | PT1696056E (ja) |
SI (1) | SI1696056T1 (ja) |
TW (1) | TW200602522A (ja) |
WO (1) | WO2005056892A1 (ja) |
Families Citing this family (15)
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JP2007277763A (ja) * | 2006-04-07 | 2007-10-25 | Toyobo Co Ltd | 高強度ポリエチレン繊維 |
CN101595255A (zh) * | 2007-01-29 | 2009-12-02 | 株式会社Y.G.K | 发光性复合纱线 |
US8074437B2 (en) * | 2008-02-28 | 2011-12-13 | Textron Innovations Inc. | Resin-impregnated, structural fiber rope |
CN102037169B (zh) * | 2008-08-20 | 2012-10-24 | 东洋纺织株式会社 | 高性能聚乙烯纤维及使用了该纤维的编织物以及其手套 |
US20110078848A1 (en) * | 2009-10-05 | 2011-04-07 | Mathis Michael P | Treatment of Folded Articles |
DE102010029633A1 (de) | 2010-06-02 | 2011-12-08 | Hd Kunststoffe & Kunststofferzeugnisse Gmbh | Zerkleinerung von ultrahochmolekularen Polyethylenfasern |
TWI397621B (zh) * | 2011-01-24 | 2013-06-01 | Toyo Boseki | 成型加工性優異的高機能聚乙烯纖維 |
US9403610B2 (en) | 2013-02-05 | 2016-08-02 | Bedford Industries, Inc. | In-line tie articles and methods of manufacture and use |
US20140315663A1 (en) * | 2013-04-22 | 2014-10-23 | Larry Drake Hansen | Approach to providing safety barrier backstop systems for spectators of baseball games |
CN112251834B (zh) | 2014-03-28 | 2022-11-11 | 东洋纺株式会社 | 复丝及编带 |
EP3124656B1 (en) | 2014-03-28 | 2021-06-02 | Toyobo Co., Ltd. | Multifilament and braid |
WO2016133102A1 (ja) | 2015-02-20 | 2016-08-25 | 東洋紡株式会社 | マルチフィラメント及びそれを用いた組紐 |
USD886928S1 (en) | 2016-08-19 | 2020-06-09 | James C. Van Loon, III | Lacrosse mesh |
CN113166364A (zh) | 2018-05-17 | 2021-07-23 | 科思创知识产权两合公司 | 由具有超高分子量的聚乙烯纤维和交联多异氰酸酯生产复合材料的方法 |
US10984682B2 (en) | 2019-02-26 | 2021-04-20 | Bedford Industries, Inc. | Product piercing tag |
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2004
- 2004-03-12 US US10/582,624 patent/US7811673B2/en active Active
- 2004-12-03 EP EP04820163A patent/EP1696056B1/en active Active
- 2004-12-03 EP EP10190168A patent/EP2287371B8/en active Active
- 2004-12-03 AT AT04820163T patent/ATE498028T1/de active
- 2004-12-03 DK DK04820163.6T patent/DK1696056T3/da active
- 2004-12-03 ES ES10190168T patent/ES2397554T3/es active Active
- 2004-12-03 SI SI200431661T patent/SI1696056T1/sl unknown
- 2004-12-03 WO PCT/JP2004/018004 patent/WO2005056892A1/ja not_active Application Discontinuation
- 2004-12-03 DK DK10190168.4T patent/DK2287371T3/da active
- 2004-12-03 PT PT04820163T patent/PT1696056E/pt unknown
- 2004-12-03 DE DE602004031362T patent/DE602004031362D1/de active Active
- 2004-12-09 TW TW093138061A patent/TW200602522A/zh unknown
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Also Published As
Publication number | Publication date |
---|---|
TWI328054B (ja) | 2010-08-01 |
EP2287371A1 (en) | 2011-02-23 |
EP1696056A4 (en) | 2007-12-05 |
EP1696056A1 (en) | 2006-08-30 |
PT1696056E (pt) | 2011-05-12 |
ES2397554T3 (es) | 2013-03-07 |
DE602004031362D1 (de) | 2011-03-24 |
EP1696056B1 (en) | 2011-02-09 |
US20070148452A1 (en) | 2007-06-28 |
DK1696056T3 (da) | 2011-05-23 |
ATE498028T1 (de) | 2011-02-15 |
EP2287371B1 (en) | 2012-10-10 |
TW200602522A (en) | 2006-01-16 |
SI1696056T1 (sl) | 2011-07-29 |
DK2287371T3 (da) | 2012-11-26 |
EP2287371B8 (en) | 2013-01-02 |
US7811673B2 (en) | 2010-10-12 |
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