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Marine polyester fiber, and preparation method thereof

A yarn and polyester technology, applied in the direction of single-component polyester rayon, melt spinning, stretch spinning, etc., can solve the problems of reducing mechanical strength, fiber deformation, high risk, etc.

Inactive Publication Date: 2012-08-15
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, known fiber ropes may cause local breakage due to frictional heat caused by environmental changes, and long-term use of the fiber rope may cause complete breakage, resulting in a high-risk situation, compared with steel wire ropes
[0006] In particular, when known fiber ropes are used for a long time in seawater for about 5 to 10 years, there is a problem of increasing rope fatigue due to continuous environmental movement (such as tidal currents), and fiber deformation occurs, thereby significantly reducing mechanical strength (e.g. product strength)

Method used

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  • Marine polyester fiber, and preparation method thereof
  • Marine polyester fiber, and preparation method thereof
  • Marine polyester fiber, and preparation method thereof

Examples

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preparation example Construction

[0068] The emulsifier can be selected in consideration of the process and equipment used for the preparation of polyester fibers, the type of polysiloxane compound, and the solvent, and is preferably a nonionic surfactant and the like.

[0069] In a preferred embodiment of the present invention, the emulsifier can be selected from nonionic surfactants of fatty acid monoglycerides, nonionic surfactants of fatty acid polyethylene glycol esters, nonionic surfactants of fatty acid sorbitan esters. One or more of ionic surfactants, fatty acid sucrose ester nonionic surfactants, fatty acid alkanolamide nonionic surfactants and polyethylene glycol condensed nonionic surfactants. Here, the fatty acid may have 8 to 22 carbon atoms.

[0070] More specifically, the nonionic surfactant may be selected from alkyl polyalkylene glycols, alkylaryl polyalkylene glycols, alkyl dimethylamine oxides, dialkylmethylamine oxides, alkylamidopropylamine oxides, alkyl glucamides, alkylpolyglycosides, ...

Embodiment 1

[0098]Melting solid-phase polymerized polyester chips having an intrinsic viscosity of 1.05 g / dL and 90% by weight or more of polyethylene terephthalate at 280°C or more, and The molten polyester is extruded through a spinneret. The extruded molten polyester was subjected to delayed quenching at a hood-heater temperature of 300°C, and was coated with polydimethylsiloxane (number average molecular weight 100,000 , the viscosity is 350cst) spinning oil component carries out surface treatment to the polyester fiber after quenching. At this time, 50% by weight of polydimethylsiloxane and 50% by weight of a conventional spinning solvent (n-paraffin) as a solvent were contained in the spinning oil.

[0099] The surface-treated polyester fibers passed through a pre-interlacer and were drawn through godet rolls at a winding speed of 3,000 m / min. At this time, the solvent is dried and removed in the stretching process.

[0100] After the stretching process, at 3.0kg / cm 2 The stretc...

Embodiment 2

[0103] In addition to surface-treating polyester fibers with a spinning oil component containing 20% ​​by weight of polydimethylsiloxane (number-average molecular weight: 100,000, viscosity: 350cst) and 80% by weight of water as a solvent, with The marine polyester yarn was prepared in the same manner as in Example 1.

[0104] The oil component was extracted from the prepared polyester yarn using carbon tetrachloride according to the extraction method, and the composition was analyzed by chromatography. As a result, 95% by weight of polydimethylsiloxane was found to be contained based on the total weight of the oil component.

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Abstract

The present invention relates to a marine fiber used in the anchoring of an oil prospecting ship for oil field development in the deep sea and the like, and particularly, to a marine polyester fiber which is a fiber comprising a polyester fiber surface-treated with an oil component and has a certain range of a work recovery or a creep ratio in a cycling test according to an ASTM D885 method of the standards of the American Society for Testing And Materials, and a preparation method thereof. The marine polyester fiber of the present invention can be conveniently used due to a remarkably reduced weight compared with known wire ropes, simultaneously provides excellent mechanical strength, abrasion resistance and shape stability when applied to a marine fiber, and can be used for a long time.

Description

technical field [0001] The invention relates to a marine polyester yarn used for anchoring an oil exploration ship for developing an oil field in a deep sea, and a preparation method thereof. Background technique [0002] Generally speaking, marine yarns are used for anchoring of oil exploration ships developing oil fields in deep sea. [0003] Steel wire ropes were generally used in the past, but when used in deep seas with a depth of more than 2,000m, the weight of the wire ropes caused many problems. [0004] In addition, steel wire ropes used for anchoring of oil exploration ships for developing oil fields in deep sea are generally required to have a 4-year life guarantee (35,000 hours) in seawater. When used in seawater for extended periods of time, wire ropes are exposed to corrosive environments, and marine environments (such as seawater or sand) can sometimes cause wear and tear on the metal. In many cases, due to the corrosion and wear of seawater, the wire rope c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/096D01F6/62D06M15/643D01D5/098D02J1/22
CPCD01D5/096D01D5/16D01F6/62D01F11/08D02J1/22D06M13/224D06M13/2243D06M15/643D06M23/10D06M2101/32D07B1/02D07B1/142D07B2205/2039D07B2501/2061Y10T428/2933D07B2801/10
Inventor 李英洙金宁照金基雄朴贤贞
Owner KOLON IND INC
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