WO2022014391A1 - Fibre de polyéthylène et produit contenant ladite fibre - Google Patents

Fibre de polyéthylène et produit contenant ladite fibre Download PDF

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Publication number
WO2022014391A1
WO2022014391A1 PCT/JP2021/025323 JP2021025323W WO2022014391A1 WO 2022014391 A1 WO2022014391 A1 WO 2022014391A1 JP 2021025323 W JP2021025323 W JP 2021025323W WO 2022014391 A1 WO2022014391 A1 WO 2022014391A1
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Prior art keywords
hard particles
polyethylene
less
fiber
polyethylene fiber
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PCT/JP2021/025323
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English (en)
Japanese (ja)
Inventor
優二 池田
靖憲 福島
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東洋紡株式会社
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Priority to JP2022536269A priority Critical patent/JPWO2022014391A1/ja
Publication of WO2022014391A1 publication Critical patent/WO2022014391A1/fr

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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
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins

Definitions

  • the present invention relates to polyethylene fibers and products containing the fibers.
  • ultra-high molecular weight polyethylene is spun by a solution spinning method.
  • high-strength polyethylene fibers can be obtained by the above manufacturing method, not only the productivity is low, but also a large-scale ventilation facility is required to recover the solvent at the time of producing the yarn.
  • elution of the solvent remaining on the polyethylene fiber has become a problem, and the usage of the polyethylene fiber has been limited.
  • an object of the present invention is to provide a polyethylene fiber having excellent cut resistance and hardly or no solvent remaining, and a product using the fiber.
  • the present invention has the following configuration.
  • the ultimate viscosity [ ⁇ ] of polyethylene is 0.8 dL / g or more and less than 8.0 dL / g.
  • the polyethylene fiber described in. 3. 3. 1.
  • the weight average molecular weight of polyethylene is 40,000 or more and 900,000 or less. Or 2.
  • the hard particles are a metal, a silicon compound, or a mineral. ⁇ 3.
  • the hard particles contain 20% by mass or more of SiO 2 in the hard particles. ⁇ 4.
  • the average minor axis of the hard particles is 1.0 ⁇ m or more.
  • ⁇ 5. The polyethylene fiber described in any of. 7. The above 1. that contains 2% by mass or more of the hard particles. ⁇ 6.
  • ⁇ 7. A product characterized by containing the polyethylene fiber described in any of the above. 9. The product is a cut-resistant woven or knitted fabric. The products listed in. 10. The product is a glove. Or 9. The products listed in.
  • the present invention relates to polyethylene fibers containing hard particles.
  • the present invention will be described in detail.
  • the polyethylene fiber of the present invention preferably has an intrinsic viscosity [ ⁇ ] of 0.8 dL / g or more and less than 8.0 dL / g, more preferably 1.0 dL / g or more and 6.0 dL / g or less. More preferably, it is 1.2 dL / g or more and less than 4.9 dL / g, and particularly preferably 1.5 dL / g or more and 2.5 dL / g or less.
  • the ultimate viscosity By setting the ultimate viscosity to 0.8 dL / g or more, the number of structural defects in the fiber can be reduced by reducing the molecular terminal groups of polyethylene. Therefore, it is possible to improve the mechanical characteristics and cut resistance of the fiber such as strength and elastic modulus. Further, by setting the ultimate viscosity to less than 8.0 dL / g, clogging of the filtration filter in the spinning process due to the added hard particles can be suppressed, and productivity can be improved. Further, by setting the ultimate viscosity to less than 8.0 dL / g, the spinning by the melt spinning method becomes easy, and it is not necessary to spin by the solution spinning method such as so-called gel spinning.
  • the melt spinning method When the melt spinning method is used, no solvent is used during manufacturing, so the impact on workers and the environment is small. Further, since there is no residual solvent in the fiber produced as a product, there is no problem of elution of the residual solvent, and the usage of the polyethylene fiber is not limited.
  • the polyethylene fiber of the present invention preferably has a weight average molecular weight (Mw) of 40,000 or more and 900,000 or less.
  • Mw weight average molecular weight
  • the polyethylene fiber of the present invention preferably has a weight average molecular weight (Mw) of 40,000 or more and 900,000 or less.
  • Mw is more preferably 60,000 or more, further preferably 80,000 or more, further preferably 700,000 or less, further preferably 500,000 or less, and 350,000 or less. Is particularly preferable.
  • the polyethylene in the present invention may be used as long as the repeating unit thereof is substantially ethylene, and the ethylene and a small amount of other monomers; for example, ⁇ -olefin, acrylic acid and its derivative, methacrylic acid and its derivative, vinylsilane and its derivative. It may be a copolymer with a derivative or the like. Alternatively, these copolymers may be used together, a copolymer of an ethylene homopolymer and the above copolymer, or a blend of an ethylene homopolymer and another homopolymer such as ⁇ -olefin.
  • the inclusion of short-chain or long-chain branches to some extent using a copolymer with an ⁇ -olefin such as propylene or butene-1 is used in producing the polyethylene fiber of the present invention, especially in spinning and drawing. It is more preferable because it imparts the above stability. However, if the content other than ethylene increases too much, it will adversely affect stretching. Therefore, from the viewpoint of obtaining polyethylene fibers with high strength and high elastic modulus, the ratio of components other than ethylene to the total polyethylene fibers is monomer.
  • the unit is preferably 0.2 mol% or less, more preferably 0.1 mol% or less.
  • the polyethylene in the present invention may be composed of ethylene alone.
  • the polyethylene fiber of the present invention may have a core-sheath structure, or may have an irregular shape such as a star shape, a triangle shape, or a hollow shape.
  • the polyethylene fiber of the present invention contains hard particles.
  • the "hard particles” mean particles that are difficult to aggregate in a polymer (polyethylene fiber).
  • the major axis of the hard particles indicates the length at the position where the length of the hard particles is maximum (the length of the maximum diameter), and the minor axis of the hard particles is the width orthogonal to the major axis. Specifically, the length at the position where the length is the maximum in the direction orthogonal to the direction of the length L of the long axis at the position where the maximum is (the major axis of the hard particle) is shown.
  • the average value of the major axis of the hard particles used in the present invention (hereinafter referred to as the average major axis) is preferably 25 ⁇ m or more, more preferably 45 ⁇ m or more, and further preferably 80 ⁇ m or more. Further, the average major axis of the hard particles used in the present invention is preferably 500 ⁇ m or less, more preferably 300 ⁇ m or less, and further preferably 200 ⁇ m or less.
  • the method of measuring the major axis of the hard particles and the method of calculating the average major axis will be described in detail in the column of Examples described later. calculate.
  • the average value of the minor axis of the hard particles used in the present invention (hereinafter referred to as the average minor axis) is 18 ⁇ m or less, preferably 15 ⁇ m or less, and more preferably 10 ⁇ m or less. If the average minor axis of the hard particles exceeds 18 ⁇ m, the filtration filter is clogged during spinning, which significantly reduces the productivity of the fibers, and particularly the stretchability. Further, if the average minor axis of the hard particles exceeds 18 ⁇ m, it becomes difficult to perform melt spinning.
  • the average minor axis of the hard particles used in the present invention is preferably 1.0 ⁇ m or more, more preferably 3.0 ⁇ m or more, and further preferably 5.0 ⁇ m or more.
  • the average minor axis of the hard particles is less than 1.0 ⁇ m, the specific surface area increases and the hard particles aggregate as an aggregate, which may cause clogging during spinning.
  • the method of measuring the minor diameter of the hard particles and the method of calculating the average minor diameter will be described in detail in the column of Examples described later, but by measuring the minor diameter of each of the 10 hard particles and obtaining the average value thereof. Calculate the average minor axis.
  • the aspect ratio of the hard particles used in the present invention is 3 or more and 100 or less. If the aspect ratio is less than 3, the cut resistance will be poor. Further, if the aspect ratio exceeds 100, it becomes difficult to perform melt spinning.
  • the aspect ratio is preferably 5 or more and 70 or less, more preferably 7 or more and 50 or less, and particularly preferably 9 or more and 30 or less.
  • the aspect ratio of the hard particles is a value calculated based on JIS89001 (that is, an index representing the shape of the particles defined by the major axis / minor axis in the microscope image of the particles).
  • the method of measuring and calculating the aspect ratio of the hard particles will be described in detail in the column of Examples described later, but the aspect ratio of each particle is calculated from the major axis and the minor axis of each of the 10 hard particles, and 10 particles are used.
  • the average value of the aspect ratios of the hard particles is defined as the aspect ratio of the hard particles.
  • the average particle size of the hard particles used in the present invention is preferably 10 ⁇ m or more, more preferably 20 ⁇ m or more, further preferably 30 ⁇ m or more, and particularly preferably 50 ⁇ m or more.
  • the average particle size of the hard particles used in the present invention is preferably 300 ⁇ m or less, more preferably 200 ⁇ m or less, still more preferably 135 ⁇ m or less, and particularly preferably 100 ⁇ m or less.
  • the average particle size of the hard particles By setting the average particle size of the hard particles to 10 ⁇ m or more, the cut resistance can be improved. Further, by setting the average particle diameter of the hard particles to 300 ⁇ m or less, clogging of the filtration filter during spinning can be suppressed and productivity can be improved.
  • the average major axis and the average minor axis are calculated by the above method, and the average value of the average major axis and the average minor axis is taken as the average particle diameter.
  • the hard particles used in the present invention include metals, silicon compounds, minerals, etc., and only one kind may be used, or two or more kinds may be used.
  • examples of the metal include aluminum, tungsten, iron, titanium, chromium, zinc, manganese, nickel, copper, silver, and gold; and further, compounds of the metal.
  • the silicon compound is not particularly limited as long as it is a compound containing silicon, and examples thereof include silica, glass, and silicon carbide.
  • the mineral include quartz, rock wool, iron oxide and the like.
  • Rock wool is a material (mineral fiber) in which a material mainly composed of rock or blast furnace slag melted in a melting furnace is rapidly cooled and fiberized. For example, slag wool manufactured from a material mainly composed of blast furnace slag is also included.
  • the hard particles used in the present invention preferably contain an aluminum compound or a silicon compound, and more preferably contain an aluminum compound and a silicon compound.
  • the aluminum compound is not particularly limited as long as it is a compound containing aluminum, but is preferably Al 2 O 3.
  • the silicon compound is not particularly limited as long as it is a compound containing silicon, and examples thereof include silica, glass, and silicon carbide, but silica and / or glass are preferable, and glass is more preferable.
  • Silica and glass are mainly distinguished by the content of SiO 2. Silica is substantially composed of SiO 2 only, and the SiO 2 content of silica is approximately 95% by mass or more.
  • the main component of glass is SiO 2 , and in addition, Al 2 O 3 , B 2 O 3 , P 2 O 5, and the like may be contained.
  • the shape of the glass used in the present invention is not particularly limited, but is preferably glass fiber.
  • the hard particles preferably contain 5% by mass or more, more preferably 10% by mass or more, preferably 40% by mass or less, and more preferably 30% by mass or less. Further, the hard particles preferably contain 20% by mass or more, more preferably 30% by mass or more, preferably 70% by mass or less, and more preferably 60% by mass or less. In particular, the hard particles preferably contain 20% by mass or more of SiO 2 , more preferably 30% by mass or more, further preferably 50% by mass or more, preferably 70% by mass or less, and 60% by mass or less. It is more preferable to include it.
  • the hard particles used in the present invention may be used as they are or may have a modified surface.
  • a dimethyl group, an epoxy group, a hexyl group, a phenyl group, a methacrylic group, a vinyl group, an isocyanate group and the like can be applied.
  • the content of the hard particles contained in the entire polyethylene fiber of the present invention is 2% by mass or more, preferably 3% by mass or more, preferably 20% by mass or less, and more preferably 10% by mass or less. be.
  • the content of the hard particles is 2% by mass or more, the contact frequency between the hard particles existing in the fiber and the blade is increased, and the effect of improving the cut resistance can be easily obtained.
  • the hard particles When spinning the polyethylene fiber of the present invention, the hard particles may be used as a masterbatch kneaded with polyethylene in advance, or may be used alone.
  • the polyethylene fiber of the present invention may contain an antioxidant, a lubricant, an antistatic agent, a peroxide, a pigment, a dye, a dispersant and the like as additives in addition to the above-mentioned hard particles.
  • a melt spinning method can be used as a production method for obtaining the polyethylene fiber of the present invention.
  • the melt spinning method polyethylene fibers with little or no residual solvent can be obtained.
  • the residual solvent in the polyethylene fiber is preferably 20 ppm or less, and more preferably 10 ppm or less.
  • the components eluted by soxley extraction with chloroform are concentrated by an evaporator and qualitatively quantified by nuclear magnetic resonance (NMR). It can be carried out by two measurement methods: analysis or ii) measurement by gas chromatography.
  • NMR nuclear magnetic resonance
  • the boiling point of the residual solvent exceeds 350 ° C, it is preferable to measure the amount of residual solvent by performing qualitative quantitative analysis by the former NMR, and when the boiling point of the residual solvent is 350 ° C or less, the latter gas chromatography method. It is preferable to measure the amount of residual solvent using.
  • the detailed measurement methods of i) and ii) will be described later.
  • the residual solvent amount is measured by the above two measuring methods, and the larger value is taken as the residual solvent amount in the polyethylene fiber.
  • the gel spinning method which is one of the methods for producing ultra-high molecular weight polyethylene fibers using a solvent (solution spinning method)
  • a solvent is used.
  • the use of solvent has a great impact on the health and environment of manufacturing workers, and the solvent remaining in the fiber has a great impact on the health of product users. Further, when the gel spinning method is used, there is a problem that the productivity is low.
  • the method for producing the polyethylene fiber of the present invention by using the melt spinning method will be specifically described below.
  • the method for producing the polyethylene fiber of the present invention is not limited to the following steps and numerical values.
  • the above-mentioned polyethylene resin and hard particles in a powder state are blended and melt-extruded using an extruder or the like at a temperature higher than the melting point of the polyethylene resin, for example, 10 ° C. or higher, preferably 50 ° C. or higher, and more preferably 80 ° C. or higher. Then, using a fixed quantity supply device, the polyethylene resin is supplied to the spinning nozzle (spinning cap) at a temperature higher than the melting point of the polyethylene resin, for example, 80 ° C. or higher, preferably 100 ° C. or higher.
  • the pressure of the inert gas supplied into the extruder is preferably 0.001 MPa or more and 0.8 MPa or less, more preferably 0.05 MPa or more, 0.7 MPa or less, still more preferably 0.1 MPa or more. , 0.5 MPa or less is recommended.
  • a spinning nozzle having a diameter of 0.3 mm or more and 2.5 mm or less, preferably a diameter of 0.5 mm or more and 1.5 mm or less is discharged at a discharge amount of 0.1 g / min or more.
  • the discharge line speed at the time of discharging the molten resin from the spinning nozzle is preferably 10 cm / min or more and 120 cm / min or less. More preferable discharge line velocities are 20 cm / min or more and 110 cm / min or less, and more preferably 30 cm / min or more and 100 cm / min or less.
  • the discharged yarn is cooled to 5 to 40 ° C., then wound at 50 m / min or more, and the obtained undrawn yarn is further rolled at least once at a temperature equal to or lower than the melting point of the undrawn yarn.
  • Stretch. Specifically, it is preferable to perform the stretching step in two or more steps.
  • the initial temperature of drawing is preferably less than the crystal dispersion temperature of the undrawn yarn, more preferably 80 ° C. or lower, still more preferably 75 ° C. or lower.
  • the crystal dispersion temperature is a temperature measured by the following method.
  • the solid viscoelasticity is measured using a solid viscoelasticity measuring device (“DMA Q800” manufactured by TA Instruments).
  • TA Universal Analysis manufactured by TA Instruments
  • the measurement start temperature is ⁇ 140 ° C.
  • the measurement end temperature is 140 ° C.
  • the temperature rise rate is 1.0 ° C./min.
  • the strain amount is 0.04%
  • the initial load at the start of measurement is 0.05 cN / dtex.
  • the measurement frequency is 11 Hz.
  • the loss elastic modulus is calculated based on the obtained solid viscoelastic modulus, the temperature dispersion is obtained from the low temperature side, the value of the loss elastic modulus is plotted on the vertical axis in logarithm, and the temperature is plotted on the horizontal axis.
  • the peak value of the loss elastic modulus that appears on the highest temperature side is defined as the crystal dispersion temperature.
  • the draw ratio is preferably 6 times or more in total, more preferably 8 times or more, and further preferably 10 times or more.
  • the total draw ratio is preferably 30 times or less, more preferably 25 times or less, and further preferably 20 times or less.
  • the stretching ratio of the first step is preferably 1.05 times or more and 4.00 times or less, and the second step stretching is preferably performed.
  • the magnification is preferably 2.5 times or more and 15 times or less.
  • Examples of the product containing the polyethylene fiber of the present invention include woven and knitted fabrics, which can be suitably used as cut resistant woven and knitted fabrics, gloves, vests and the like.
  • gloves can be obtained by hanging the polyethylene fibers of the present invention on a knitting machine.
  • the polyethylene fiber of the present invention can be woven on a loom to obtain a cloth, which can be cut and sewn to make gloves.
  • the gloves thus obtained can be used as gloves as they are, for example, but if necessary, a resin can be applied to impart anti-slip properties.
  • a resin can be applied to impart anti-slip properties.
  • the resin used here include urethane-based and ethylene-based resins, but the resin is not particularly limited.
  • the polyethylene fiber of the present invention has excellent cut resistance, as can be seen from the examples described later. Therefore, in addition to the above-mentioned woven and knitted fabrics such as gloves and vests, the products using the polyethylene fiber of the present invention include tapes, ropes, nets, fishing lines, material protective covers, sheets, kite threads, western bow strings, sail cloths, etc. It is suitably used as a curtain material. Of course, the products using the polyethylene fibers of the present invention are not limited to these.
  • the polyethylene fiber of the present invention has high cut resistance
  • a material utilizing the cut resistance for example, a fiber reinforced resin reinforcing material, a cement reinforcing material, a fiber reinforced rubber reinforcing material, or an environmental change is assumed. It is suitably used as a protective material, a bulletproof material, a medical suture, an artificial tendon, an artificial muscle, a fiber reinforced resin reinforcing material, a cement reinforcing material, a fiber reinforced rubber reinforcing material, a machine tool part, a battery separator, and a chemical filter.
  • the polyethylene fiber of the present invention is not limited to these materials and can be used as various materials.
  • the maximum minor axis was defined as the length at the position where the maximum length was obtained in the direction orthogonal to the maximum major axis.
  • the average major axis was obtained by obtaining the average value of the maximum major axis of the 10 hard particles, and the average minor axis was determined by obtaining the average value of the maximum minor axis of the 10 hard particles. Since the hard particles have high hardness, it is considered that the shape does not change even when heated.
  • the aspect ratio of hard particles was determined by using an SEM photograph. Specifically, each fiber sample prepared by the method described later was placed in a crucible, burned until it became ash and a carbonaceous substance, placed in an electric furnace, and heated above the decomposition temperature of polyethylene. When the carbonaceous material became completely ash, it was allowed to cool in a desiccator to obtain ash to room temperature. SEM photographs of the ash thus obtained were taken, and the major axis (maximum major axis) and minor axis (maximum minor axis) were measured for each of the 10 randomly selected hard particles, and the maximum major axis was maximized. The aspect ratio of each particle was calculated by dividing by the minor axis.
  • the maximum minor axis was defined as the length at the position where the maximum length was obtained in the direction orthogonal to the maximum major axis. Then, the average value of the aspect ratios of the 10 hard particles was taken as the aspect ratio of the hard particles. Since the hard particles have high hardness, it is considered that the shape does not change even when heated.
  • the content of hard particles was determined by using ash content measurement based on JIS-2272. 1.0 g of the fiber sample was placed in a crucible, burned until it became ash and a carbonaceous substance, then placed in an electric furnace and heated at a temperature higher than the decomposition temperature of polyethylene. After the carbonaceous substance was completely turned into ash, it was allowed to cool in a desiccator and the mass was measured to determine the ash content. The content of hard particles was determined based on the mass ratio of the ash content to the total of the obtained ash content and the fiber content.
  • Cut resistance (coup test) The cut resistance was measured based on the EN388 method, which is a European standard, using a device of a coup tester (manufactured by SODEMAT). Specifically, using each polyethylene fiber produced by the method described later, a tubular knitting machine having a basis weight of 350 g / m 2 ⁇ 35 g / m 2 was produced using a circular knitting machine manufactured by Shima Seiki Seisakusho Co., Ltd. The index value of the obtained coupe tester for tubular knitting was calculated as follows to evaluate the cut resistance.
  • an aluminum foil was provided on the sample table of the above device, and the knitted sample was placed on this. Then, the circular blade provided in the device was run on the sample while rotating in the direction opposite to the running direction. When the knitted sample was cut, it was detected that the cut resistance test was completed by the contact between the circular blade and the aluminum foil and energization. While the circular blade was operating, the counter attached to the device counted and recorded the value.
  • index value (count value of cotton cloth before sample test + count value of cotton cloth after sample test) / 2
  • Index value (sample count value + K) / K
  • the cutter used for the evaluation of cut resistance is a rotary cutter L type ⁇ 45 mm manufactured by OLFA Co., Ltd.
  • the material was SKS-7 tungsten steel, and the blade thickness was 0.3 mm.
  • the load applied during the test was set to 5N for evaluation.
  • the index value obtained in Comparative Example 4 is set as the incision resistance 100, and using this as a reference value, the other Examples 1 to 8, Comparative Examples 1 to 3, and Comparative Example 9 are Comparative Example 4.
  • the cut resistance was expressed by the relative ratio to.
  • the incision resistance of Example 1 is 120, which means that when the incision resistance of Comparative Example 4 is 100%, a high incision resistance of 120% (1.2 times) is obtained. do.
  • Cut resistance (ISO test) The cut resistance value was measured using TDM-100 manufactured by RGI in accordance with ISO13997 "Protective clothing-Mechanical properties-Cut resistance test method for sharp objects". The cutting direction was 45 degrees.
  • the amount of residual solvent in the polyethylene fiber of Comparative Example 9 produced by the solution spinning method was 50 ppm.
  • NMR measurement It was determined by analysis using 1 H-NMR (solvent: CDCl 3 , frequency: 600 MHz) by AVANCE NEO 600 manufactured by BRUKER.
  • AVANCE NEO 600 manufactured by BRUKER.
  • Gas chromatography method Using the GCMS thermal decomposition system TD-20 manufactured by Shimadzu Corporation, the gas was heated at 80 ° C. for 10 minutes under a helium stream (50 ml / min), and the generated gas was cooled and collected in a Tenax-TA adsorption tube and desorbed by heating.
  • Example 1 A blend polymer was prepared by mixing 97% by mass of polyethylene pellets having an ultimate viscosity of 1.9 dL / g and 3% by mass of rock wool (hard particles) having an average major axis of 125 ⁇ m and an average minor axis of 7 ⁇ m. This blended polymer was supplied to an extruder, melted at 280 ° C., and discharged from a spun mouthpiece having an orifice diameter of ⁇ 0.8 mm and 30 H at a nozzle surface temperature of 288 ° C. and a single hole discharge rate of 0.32 g / min.
  • the discharged yarn was passed through a heat insulating section of 10 cm, cooled at 18 ° C. and 0.5 m / sec quenching, and then wound into a cheese shape at a spinning speed of 80 m / min to obtain an undrawn yarn.
  • the undrawn yarn was wound three times between the two drive rolls and then heated with hot air at 100 ° C. at the maximum drawing ratio capable of stable drawing to obtain a drawn yarn.
  • the drawn yarns were combined so as to have a total of 880 dtex ⁇ 88 dtex to obtain the polyethylene fiber of Example 1.
  • a tubular knitted fabric was produced by the above method and the cut resistance was evaluated. These results are shown in Table 1.
  • the drawn yarns are combined so as to have a desired dtex, but fiber splitting may be performed.
  • Example 2 In the conditions of Example 1, polyethylene fibers and tubular knitted fabrics were obtained in the same manner as in Example 1 except that the polymer, hard particles, and spinning speed used were the conditions shown in Table 1, and the cut resistance was evaluated. These results are shown in Table 1.
  • Example 5 In the conditions of Example 1, polyethylene fibers were tried to be produced in the same manner as in Example 1 except that the polymer, hard particles, and spinning speed used were the conditions shown in Table 2, but in Comparative Examples 5 and 6, they were melted. The viscosity of the state was so high that it could not be extruded, and in Comparative Examples 7 and 8, clogging occurred during spinning, and undrawn yarn could not be obtained in any of the Comparative Examples. These results are shown in Table 2.
  • Comparative Example 10 An attempt was made to produce polyethylene fibers in the same manner as in Comparative Example 9, except that the ultimate viscosity of the ultra-high molecular weight polyethylene was 1.9 dL / g, but the polyethylene fibers could not be produced because they could not be spun. .. These results are shown in Table 2.
  • the polyethylene fibers of Examples 1 to 8 in detail, in a tubular knitting using polyethylene fibers containing hard particles having an aspect ratio of 3 or more and 100 or less and an average minor axis of 18 ⁇ m or less, the index is used. High value, that is, high level of cut resistance.
  • the polyethylene fiber satisfying the requirements of the present invention is a fiber having excellent cut resistance and hardly or no solvent remaining. I understand.
  • the polyethylene fiber of the present invention has high cut resistance, it can be used for cut resistant woven and knitted fabrics utilizing the cut resistance, such as gloves and vests.
  • the polyethylene fiber alone tape, rope, net, fishing line, material protective cover, sheet, kite thread, western bow string, sail cloth, curtain material, protective material, bulletproof material, medical suture thread, artificial tendon, artificial muscle , Fiber reinforced resin reinforcing material, cement reinforcing material, fiber reinforced rubber reinforcing material, machine tool parts, battery separators, chemical filters and other industrial materials.
  • the polyethylene fiber of the present invention can exhibit excellent performance and can be widely applied, so that it can greatly contribute to the industrial world.

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  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Knitting Of Fabric (AREA)

Abstract

La présente invention concerne : une fibre de polyéthylène qui a une excellente résistance à la coupe, avec une teneur partielle ou nulle en solvant résiduel ; et un produit qui utilise cette fibre. La fibre de polyéthylène est caractérisée en ce qu'elle contient des particules dures qui ont une largeur moyenne de 18 µm ou moins, tout en ayant un rapport d'aspect de 3 à 100.
PCT/JP2021/025323 2020-07-13 2021-07-05 Fibre de polyéthylène et produit contenant ladite fibre WO2022014391A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116162312A (zh) * 2022-12-26 2023-05-26 湖南工业职业技术学院 一种高分子材料耐磨混凝土输送管道

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010507026A (ja) * 2006-10-17 2010-03-04 ディーエスエム アイピー アセッツ ビー．ブイ． 耐切創糸、耐切創糸の製造方法、および耐切創糸を含む製品
JP2017179684A (ja) * 2016-03-29 2017-10-05 東洋紡株式会社 耐切創性に優れたポリエチレン繊維、およびそれを用いた製品
WO2018181309A1 (fr) * 2017-03-29 2018-10-04 東洋紡株式会社 Fibres de polyéthylène, et article mettant en œuvre celles-ci
WO2019186696A1 (fr) * 2018-03-27 2019-10-03 東洋紡株式会社 Fibre de polyéthylène et produit l'utilisant
WO2020065842A1 (fr) * 2018-09-27 2020-04-02 東洋紡株式会社 Fibre de polyéthylène et produit mettant en œuvre une telle fibre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010507026A (ja) * 2006-10-17 2010-03-04 ディーエスエム アイピー アセッツ ビー．ブイ． 耐切創糸、耐切創糸の製造方法、および耐切創糸を含む製品
JP2017179684A (ja) * 2016-03-29 2017-10-05 東洋紡株式会社 耐切創性に優れたポリエチレン繊維、およびそれを用いた製品
WO2018181309A1 (fr) * 2017-03-29 2018-10-04 東洋紡株式会社 Fibres de polyéthylène, et article mettant en œuvre celles-ci
WO2019186696A1 (fr) * 2018-03-27 2019-10-03 東洋紡株式会社 Fibre de polyéthylène et produit l'utilisant
WO2020065842A1 (fr) * 2018-09-27 2020-04-02 東洋紡株式会社 Fibre de polyéthylène et produit mettant en œuvre une telle fibre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116162312A (zh) * 2022-12-26 2023-05-26 湖南工业职业技术学院 一种高分子材料耐磨混凝土输送管道
CN116162312B (zh) * 2022-12-26 2024-05-03 湖南工业职业技术学院 一种高分子材料耐磨混凝土输送管道

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