Highly functional polyethylene fiber, and dyed highly functional polyethylene fiber

一种聚乙烯纤维、高功能的技术，应用在聚乙烯纤维领域，能够解决无法维持产品性能、尺寸变化等问题，达到优异性能和外观性、物性变化小、广泛应用的效果

Active Publication Date: 2012-12-05
TOYOBO MC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the use environment, physical property changes and dimensional changes are likely to occur, and product performance cannot be maintained, which has become a problem

Method used

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  • Highly functional polyethylene fiber, and dyed highly functional polyethylene fiber
  • Highly functional polyethylene fiber, and dyed highly functional polyethylene fiber
  • Highly functional polyethylene fiber, and dyed highly functional polyethylene fiber

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1～16

[0149] A solid viscoelasticity measuring device (manufactured by T.A. Instruments, "DMA Q800") was used for the measurement. The measurement conditions are that the measurement sample length is 10 mm, and the sample fineness is 100 dtex. During the measurement, use adhesive and double-sided tape to clamp both ends of the fiber sample with thick paper to avoid slipping between the fiber sample and the chuck of the device and rupture of the monofilament. By interposing the thick paper between the fiber sample and the device chuck during the measurement in this way, slippage on the device chuck and breakage of monofilaments can be suppressed. The measurement start temperature was set at -10°C, the measurement end temperature was set at 140°C, and the heating rate was set at 1.0°C / min. The amount of deformation was set to 0.04%, and the initial load at the start of the measurement was set to 0.05 cN / dtex. And, the measurement frequency was set to 11 Hz. The analysis of the data...

manufacture example 17～31

[0152] A solid viscoelasticity measuring device (manufactured by T.A. Instruments, "DMA Q800") was used for the measurement. As for the measurement conditions, the length of the measurement sample was adjusted to be 10 mm, and the fineness of the sample was adjusted to be about 100 dtex. During the measurement, both ends of the measurement sample are clamped with thick paper using adhesive and double-sided tape to avoid slippage between the fiber sample and the chuck of the device and rupture of the monofilament. By interposing the thick paper between the measurement sample and the device chuck during the measurement in this way, slippage on the device chuck and breakage of monofilaments can be suppressed in the case of fibers. In addition, the measurement start temperature was set at -140°C, the measurement end temperature was set at 140°C, and the temperature increase rate was set at 1.0°C / min. The amount of deformation was set to 0.04%, and the initial load at the start of...

manufacture example 1

[0208] High-density polyethylene pellets having an intrinsic viscosity of 1.9 dL / g, a weight average molecular weight of 120,000, and a ratio of weight average molecular weight to number average molecular weight of 2.7 were filled in a container supplied with nitrogen gas at a pressure of 0.005 MPa. The pellets are supplied to the extruder and melted at 280°C. The mesh diameter of the nozzle filter is set to 10 μm. Under the conditions, it is sprayed with a single hole spray rate of 0.4g / min. Let the extruded filaments pass through a 10cm heat preservation zone, and then cool them with a quenching wind with a wind speed of 0.5m / sec at 40°C, and then wind them into a bobbin shape at a spinning speed of 270m / min to obtain undrawn filaments .

[0209] Then, before winding into a bobbin shape, 2% by mass of octane / ethylene glycol (=80 / 20; mass ratio) liquid mixture was added to the undrawn yarn, and it was left still in a bobbin shape for a day. As part of the above-mentioned oc...

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Abstract

Provided is a highly functional polyethylene fiber which is small in changes of physical properties and has excellent dimensional stability over a wide range of product processing temperature and a wide range of product's service temperature. Also provided is a highly functional polyethylene fiber which is capable of achieving a high dye exhaustion ratio by a simple dyeing operation and has excellent color fastness. The highly functional polyethylene fibers of the present invention are characterized by having a limiting viscosity [n] of 0.8 dL / g to 4.9 dL / g (inclusive), a repeating unit that is substantially composed of ethylene, a maximum contraction stress as determined by TMA (thermomechanical analysis) of 0.4 cN / dtex or less and a thermal shrinkage at 100 DEG C of 2.5% or less.

Description

technical field [0001] The present invention relates to polyethylene fibers having little change in physical properties in the region from around room temperature to around the crystallization dispersion temperature of polyethylene, and excellent in dimensional stability, dyeability, and cut resistance. Background technique [0002] In the past, it was used in high-performance fabrics such as various sports clothing or bulletproof, protective clothing, protective gloves, and various safety products; various rope products such as label ropes, cables, yacht ropes, and construction ropes; fishing lines, and blinds. Various assembled rope products such as fishing nets and anti-ball nets; chemical filters, battery separators or various non-woven reinforcement materials; tents and other tent materials; protective caps and snowboards and other sports or speaker cones Reinforcing fibers for composites such as prepregs or prepregs; high-strength fibers are used in a wide range of ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/04D03D15/56
CPCD04B21/18D04B1/28D10B2321/021D01F11/06D01F6/04D06P3/794D06M15/53C08F110/02D02J1/224D02J1/22D01D5/247D06M2101/20D06M13/17D02G3/442A41D19/01505D06M13/165D02G3/32D03D15/08Y10T428/2967Y10T442/413Y10T442/3024D01F1/10D02G3/36D03D15/56
Inventor 福岛靖宪小田胜二滨野阳增田实
Owner TOYOBO MC CORP
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