CN101389804A - Ropes having improved cyclic bend over sheave performance - Google Patents
Ropes having improved cyclic bend over sheave performance Download PDFInfo
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- CN101389804A CN101389804A CNA2007800061821A CN200780006182A CN101389804A CN 101389804 A CN101389804 A CN 101389804A CN A2007800061821 A CNA2007800061821 A CN A2007800061821A CN 200780006182 A CN200780006182 A CN 200780006182A CN 101389804 A CN101389804 A CN 101389804A
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- rope
- fiber
- tenacity
- molecular weight
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
- D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
- D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/201—Wires or filaments characterised by a coating
- D07B2201/2012—Wires or filaments characterised by a coating comprising polymers
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2042—Strands characterised by a coating
- D07B2201/2044—Strands characterised by a coating comprising polymers
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/201—Polyolefins
- D07B2205/2014—High performance polyolefins, e.g. Dyneema or Spectra
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3017—Silicon carbides
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2061—Ship moorings
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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
- Y10T428/2933—Coated or with bond, impregnation or core
Abstract
An improved rope is formed from high tenacity polyolefin fibers, such as extended chain polyethylene fibers. The fibers and/or the rope are coated with a composition comprising an amino functional silicone resin and a neutralized low molecular weight polyethylene. The ropes are useful in marine applications, such as in deep sea lifting. The ropes have improved cyclic bend over sheave fatigue resistance.
Description
The mutual reference of related application
The application is the part continuation application of the part continuation application of the application serial no 11/361,180 submitted on February 24th, 2006 and the application serial no 11/481,872 submitted on July 6th, 2006.
Background of invention
Invention field
The present invention relates to the improvement of rope, relate in particular to the high tenacity synthetic rope that is applicable to offshore applications.
Description of Related Art
Sythetic fiber rope has been used in a lot of application, comprises various offshore applications.Class rope with premium properties is the rope of being made by high-modulus polyethylene fibres and/or yarn.High tenacity polyolefin fibers also is called extended chain or high molecular weight fibers.This fibrid and yarn have merchandise sales, as from Honeywell International Inc.
The extended chain polyethylene fiber.
People have proposed the rope of being made by the extended chain polyethylene fiber is used for offshore applications.See, for example, authorize the U.S. patent 5,901,632 and 5,931,076 of Ryan, its disclosure, with the degree of this paper compatibility on, clearly draw for reference in this.
In some offshore applications, the extended chain polyethylene rope in use will be by alternating bending on pulley, belt pulley or post.When some synthetic rope is subjected to alternating bending on pulley too early wearing and tearing can take place, especially, at sea used synthetic rope has run into this problem in the commercial Application.
In many offshore applications, synthetic rope constantly replaces cable wire.Because the reversed bending (CBOS) of synthetic rope on many pulleys replaces cable wire in using more and more, need to improve the fatigue life of high-performance synthetic rope.Especially need to improve the performance of making rope by high performance polyolefin fibers and yarn.
Have the solution that the better rope of performance proposes and be disclosed in the U.S. patent 6,945,153 of authorizing Knudsen etc. for providing, its disclosure is clearly drawn in this, with the degree of compatibility of the present invention on for reference.This patent disclosure by the formed major diameter rope of blend of extended chain polyethylene fiber peacekeeping liquid crystal polymer fibre.People expect to improve the performance of this class rope.
Preferably can provide last alternating bendings such as pulley are had better ABRASION RESISTANCE, especially in wet the application, keep the high tenacity polyolefin fibers of other premium properties simultaneously.Preferably can also provide and be applicable to the rope that promotes certainly or be placed into the lifting application on the sea bed.
Summary of the invention
According to the present invention, the rope with improved fatigability of anti-CBOS is provided, this rope comprises high-tenacity fiber, this rope and/or fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
According to the present invention, also to provide rope with improved fatigability of anti-CBOS, this rope comprises high tenacity polyolefin fibers and is not the blend of other high-tenacity fiber of polyamide fiber, this rope and/or fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
According to the present invention, also to provide rope with improved fatigability of anti-CBOS, this rope comprises the blend of high tenacity polyolefin fibers and other high-tenacity fiber, described other high-tenacity fiber comprises aramid fibre and/or liquid crystal copolyester fiber, described rope and/or fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
According to the present invention, also to provide and improve rope CBOS method of fatigue life, this method comprises by high-tenacity fiber and forms rope, and with comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene be coated with this rope and/or form the fiber of this rope.
According to the present invention, also to provide with synthetic fiber rope weight is promoted oneself and the method that is placed on the sea bed, its improvements comprise with the rope that comprises high-tenacity fiber as this rope, described rope and/or fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
Have been found that, when high-tenacity fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene and when forming rope, if or with composition coating during by the uncoated fibroplastic rope of this class, the anti-pulley cocycle bendability of this rope unexpectedly is improved.Also find, when high-tenacity fiber and other high-tenacity fiber are carried out coating on blend and the blended fiber comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene and when forming rope, if or on the rope that is formed by this blended fiber during coating composition, the anti-pulley cocycle bendability of this rope unexpectedly is improved.
Detailed Description Of The Invention
For purpose of the present invention, fiber is the slender body of its length dimension much larger than width and gauge.Therefore, term " fiber " comprises that the weak point of monofilament, multifilament, band, bar, staple fibre and other form with regular and irregular cross section is cut or discontinuous fibre etc.Term " fiber " comprises the combination of above-mentioned any one or they.Yarn is the continuous thigh that comprises many fibers or monofilament.The form of fiber also can be band, bar or layered membrane or band.
The cross section that is applicable to the fiber of this paper can alter a great deal.Their cross section can be rounded, pancake or ellipse.They also can have with one or more prominent from the rule of the fiber bobbin or the longitudinal axis or irregular or regular many projections cross section of irregular projection.Optimum fiber is rounded substantially, pancake or elliptic cross-section, and is most preferably circular substantially.
As mentioned above, proposed comprising high modulus polyolefin fibersand, the rope of the yarn of making as the extended chain polyethylene fiber with by them is used for offshore applications.This of rope kind of purposes is that weight is lifted also mooring to sea bed.Other application comprises that seabed oil, air to open are adopted, oceanography, seismology and other commercial Application.The most preferred application of rope of the present invention comprises the deep-sea lifting and fills.
Used fiber is a high-tenacity fiber in the rope structure of the present invention.As used herein, term " high-tenacity fiber " is meant that toughness is equal to or greater than the fiber of about 7g/d.The initial tensile modulus of preferred this fibrid is at least about 150g/d and energy to failure is at least about 8J/g, presses ASTMD2256 and measures.As used herein, term " initial tensile modulus ", " stretch modulus " and " modulus " are meant the elastic modelling quantity of measuring by 2256 pairs of yarns of ASTM.
The toughness of preferred high-tenacity fiber is equal to or greater than about 10g/d, more preferably is equal to or greater than about 16g/d, even more preferably is equal to or greater than about 22g/d, and most preferably be equal to or greater than about 28g/d.
High-tenacity fiber can be used for rope structure separately, or more preferably is used for rope structure with 2 kinds or multiple blend with high-tenacity fiber that different chemical forms.
The high-tenacity fiber that is applicable to this paper comprises height-oriented high molecular polyolefine fiber, especially polybenzazole fiber, vinal, polyacrylonitrile fibre, polyamide fiber, polyester fiber, liquid crystal copolyester fiber, glass fibre, carbon fiber, basalt or other mineral fibres and the rigid rod polymer fiber of high-modulus polyethylene fibres and polypropylene fibre, aramid fibre, polybenzoxazole (PBO) and polybenzothiozole (PBT) and so on, and their mixture or blend.Be applicable to that preferred high strength fiber of the present invention comprises polyamide fiber, aramid fibre and liquid crystal copolyester fiber and their blend and mixture.Most preferably high molecular weight polyethylene fiber, aramid fibre and liquid crystalline polyester fiber and their blend and mixture.Can be made by the blend of 2 kinds or multiple this class high-tenacity fiber though form the yarn of rope, the yarn of preferably making rope is formed by a kind of high-tenacity fiber and forms rope with the yarn of 2 kinds or multiple different fiber-like.
Preferred blends is the blend of blend, high-tenacity fiber and liquid crystal copolyester fiber of high tenacity polyethylene fibers and aramid fibre and the blend of aramid fibre and liquid crystal copolyester fiber.
Used fiber preferably comprises extended chain (being called high molecular, high tenacity or high-modulus again) polyethylene fiber, especially high-modulus polyethylene fibres and polypropylene fibre in the rope structure.
U.S. patent 4,457, and 985 have usually discussed this family macromolecule weight northylen and polypropylene fibre, and the disclosure of this patent is drawn in this, with the degree of this paper compatibility on for reference.Under poly situation, useful fiber be weight average molecular weight at least about 150,000, preferably at least about 1,000,000 and more preferably at least about 2,000,000～about 5,000, those of 000.This family macromolecule weight polyethylene fiber can spinning in solution (be seen U.S. patent 4,137,394 and U.S. patent 4,356,138) or be spun into monofilament from solution and (see U.S. patent 4 to form gel structure, 413,110, Deutsche Bundespatent discloses 3,004,699 and GB (Britain) patent 2051667), or polyethylene fiber also can be produced (seeing U.S. patent 5,702,657) with the roller daraf(reciprocal of farad).As used herein, term polyethylene is meant the material based on linear polyethylene, can contain a small amount of chain branching or comonomer that per 100 backbone c atoms are no more than about 5 modification unit, perhaps, also can mix with one or more polymeric additives that are no more than about 50wt%, described additive such as alkene-1 polymer, especially low density polyethylene (LDPE), polypropylene or polybutene, contain the copolymer that monoolefine is a principal monomer, oxidized polyolefin, graft polyolefin copolymer and polyformaldehyde, or low molecular weight additives, the antioxidant of adding as usual, lubricant, ultraviolet screener, colouring agent or the like.
High tenacity polyethylene fibers has merchandise sales, as from Honeywell InternationalInc.of Morristown, New Jersey, U.S.A's
Fiber and yarn.
Depend on manufacturing process, draw ratio and temperature and other condition, can make this fibrid have a lot of performances.The toughness of polyethylene fiber is at least about 7g/d, preferably at least about 15g/d, more preferably at least about 20g/d, again more preferably at least about 25g/d with most preferably at least about 30g/d.Equally, the initial tensile modulus of fiber, as use the Instron stretching test machine determination is preferably at least about 300g/d, more preferably at least about 500g/d, and again more preferably at least about 1,000g/d and most preferably at least about 1,200g/d.The above-mentioned peak of initial tensile modulus and toughness generally only just can obtain with solution growth or gel spinning.The fusing point of a lot of monofilament is higher than the fusing point of the polymer that forms monofilament.Therefore, for example, the fusing point of molecular weight about 150,000, about 1,000,000 and about block High molecular weight polyethylene of 2,000,000 is generally 138 ℃.And the fusing point of the height-oriented polyethylene fiber of being made by these materials exceeds about 7 ℃～about 13 ℃.Therefore, the integrity that improves the reflection crystallization slightly of fusing point and the crystalline orientation degree higher than bulk polymer.
Preferred used polyethylene is to have in per 1000 carbon atoms to be less than about 1 methyl, and the polyethylene that is less than about 0.5 methyl and is less than about 1% other component is arranged in more preferably per 1000 carbon atoms.
Equally, can be with weight average molecular weight at least about 200,000, preferably at least about 1,000,000 and more preferably at least about 2,000,000 height-oriented high molecular weight polypropylene fiber.This class extended chain polypropylene can be with the method described in above-mentioned many lists of references, and especially the U.S. patent 4,413, and the method in 110 forms the fiber of good orientation.Because polypropylene is than the very different material of polyethylene crystallinity and contains pending methyl group, so the toughness values that may reach with polypropylene generally is starkly lower than poly analog value.Therefore, the toughness that is suitable for is preferably at least about 8g/d, more preferably at least about 11g/d.Polyacrylic initial tensile modulus is preferably at least about 160g/d, more preferably at least about 200g/d.Orientation process generally makes polyacrylic fusing point raise several times, so the main fusing point of polypropylene fibre is preferably at least 168 ℃, more preferably at least 170 ℃.The particularly preferred scope of above-mentioned parameter can advantageously make end article have more performance.Can advantageously make end article have more performance with weight average molecular weight at least about 200,000 preferable range of adding above-mentioned parameter (modulus and toughness).
Under the situation of extended chain polyethylene fiber, the manufacturing and the drawing-off of gel-spinning poly vinyl fiber are described in the many pieces of publications, comprise the U.S. patent
4,413,110; 4,430,383; 4,436,689; 4,536,536; 4,545,950; 4,551,296; 4,612,148; 4,617,233; 4,663,101; 5,032,338; 5,246,657; 5,286,435; 5,342,567; 5,578,374; 5,736,244; 5,741,451; 5,958,582; 5,972,498; 6,448,359; 6,969,553 and the U.S patent application disclose in 2005/0093200, its disclosure is drawn in this, with the degree of this paper compatibility on for reference.
Under the situation of aramid fibre, the suitable fibers that is formed by aromatic polyamides is described in the U.S. patent 3,671,542, and the document is drawn in this, with the degree of this paper compatibility on for reference.The toughness of preferred aramid fiber is at least about 20g/d, and initial tensile modulus is at least about 400g/d and energy to failure is at least about 8J/g, and the toughness of particularly preferred aramid fibre will be at least about 20g/d and energy to failure is at least about 20J/g.The toughness of most preferred aramid fibre will be at least about 23g/d, and modulus is at least about 500g/d and energy to failure is at least about 30J/g.For example, the Fanglun 1414 with medium high-modulus and toughness values is specially adapted to form ballistic composite.Example is 1000 d that Teijin produces
Other example is to be respectively 500g/d and 22g/d from the initial tensile modulus of E.I.Du Pont Company and toughness values
And existing 400 d, 640 d and 840 d
And KM2.The aramid fibre that other manufactory produces also can be used for the present invention.Can also be with the copolymer of PPTA, as the copolymer of poly P phenylene diamine terephthalamide and paraphenylene terephthalamide's 3 ', 4 '-oxydiphenyl amine.E.I.Du Pont Company is with trade name
The Fanglun 1313 of selling also is applicable to puts into practice the present invention.
High molecular weight polyvinyl alcohol (PV-OH) fiber with high stretch modulus is described in the U.S. patent 4,440,711 of authorizing people such as Kwon, and the document is drawn in this, with the degree of this paper compatibility on for reference.The weight average molecular weight of high molecular PV-OH fiber should be at least about 200,000.The modulus of useful especially PV-OH fiber should be at least about 300g/d, and toughness is preferably at least about 10g/d, and more preferably at least about 14g/d with most preferably at least about 17g/d, and energy to failure is at least about 8J/g.PV-OH fiber with performance like this can be used, for example, and U.S. patent 4,599, the method production described in 267.
Under the situation of polyacrylonitrile (PAN), the weight average molecular weight of PAN fiber should be at least about 400,000.The toughness of the PAN fiber of particularly suitable is preferably at least about 10g/d and energy to failure and is at least about 8J/g.Molecular weight is at least about 400,000, and toughness is the most useful at least about the PAN fiber of 8J/g at least about 15～20g/d and energy to failure; This fibrid is disclosed in, for example, and in the U.S. patent 4,535,027.
Be applicable to that putting into practice liquid crystal copolyester fiber of the present invention is disclosed in, for example, U.S. patent 3,975,487; In 4,118,372 and 4,161,470.The liquid crystal copolyester fiber can be available from KurarayAmerica Inc., and commodity are by name
Fiber
Be applicable to that putting into practice polybenzazole fiber of the present invention is disclosed in, for example, U.S. patent 5,286,833,5,296 is in 185,5,356,584,5,534,205 and 6,040,050.Polybenzazole fiber can be available from Toyobo Co., and commodity are by name
Fiber.
Rigid rod fibers is disclosed in, and for example, U.S. patent 5,674,969,5,939 is in 553,5,945,537 and 6,040,478.This fibrid can be available from Magellan Systems International, and commodity are by name
Fiber.
When 2 kinds of uses or multiple high-tenacity fiber in rope of the present invention, one of preferred high-tenacity fiber is a polyamide fiber, more preferably polyethylene fiber.The percentage composition of high tenacity polyethylene fibers can alter a great deal in the rope, depends on other used class high-tenacity fiber and the performance that fiber is expected.High tenacity polyethylene fibers can account for about 20～about 80wt% of high-tenacity fiber gross weight in the rope, more preferably from about 30～about 70wt% and most preferably from about 40～about 60wt%.For example, rope can be by about 80～about 20wt% high tenacity polyethylene fibers and correspondingly about 20～about 80wt% aramid fibre; More preferably by about 70～about 30wt% high tenacity polyethylene fibers and correspondingly about 30～about 70wt% aramid fibre; Most preferably make by about 40～about 60wt% high tenacity polyethylene fibers and correspondingly about 60～about 40wt% aramid fibre.In an especially preferred embodiment, rope comprises about 70～55wt% aramid fibre and correspondingly about 30～about 45wt% high tenacity polyethylene fibers, is that benchmark calculates with the gross weight of high-tenacity fiber in the rope.In another embodiment of the invention, all or all substantially fibers are all formed by aramid fibre in the rope.
When coupling liquid crystal copolyester fiber and high tenacity polyethylene fibers, rope can be by about 80～about 20wt% high tenacity polyethylene fibers and correspondingly about 20～about 80wt% liquid crystal copolyester fiber; More preferably by about 70～about 30wt% high tenacity polyethylene fibers and correspondingly about 30～about 70wt% liquid crystal copolyester fiber; Most preferably form by about 40～about 60wt% high tenacity polyethylene fibers and correspondingly about 60～about 40wt% liquid crystal copolyester fiber.In an especially preferred embodiment, rope comprises about 70～55wt% liquid crystal copolyester fiber and correspondingly about 30～about 45wt% high tenacity polyethylene fibers, is that benchmark calculates with the gross weight of high-tenacity fiber in the rope.In another embodiment of the invention, all or all substantially fibers are all formed by the liquid crystal copolyester fiber in the rope.
If desired, except that above-mentioned high-tenacity fiber, also can use other fibrid.The another kind of fiber that can be present in the rope structure of the present invention with high-tenacity fiber is the fiber that is formed by fluoropolymer.This class fluoropolymer fibers comprises the fiber that is formed by following polymer: polytetrafluoroethylene (PTFE) (preferred porous Teflon), polychlorotrifluoroethylene (homopolymers and copolymer (comprising terpolymer)), polyvinyl fluoride, Kynoar, ethylene-tetrafluoroethylene copolymer, ethylene-chlorotrifluoro-ethylene copolymer, fluorinated ethylene-propylene copolymer, perfluoroalkoxy etc., and the blend of 2 kinds or multiple above-mentioned polymer.Particularly preferred fluoropolymer fibers is those that are formed by polytetrafluoroethylene (PTFE), especially porous Teflon fiber.This fibrid can be available from Lenzing Plastics GmbH ﹠amp; Co.KG and WL Gore ﹠amp; Associates.
Very big with the variable-scaleization of the fluoropolymer fibers of high-tenacity fiber blend, depend on the type and final application of fluoropolymer.For example, the content of fluoropolymer fibers in blend can be about 1～about 40wt% of blended fiber gross weight, more preferably from about 5～about 25wt% and most preferably from about 10～about 20wt%.Correspondingly, the content of high-tenacity fiber can be about 60～about 99wt% of blended fiber gross weight, more preferably from about 75～about 95wt% and most preferably from about 80～about 90wt%.
The inhomogeneity fiber that is applicable to rope of the present invention can carry out blend with any suitable method.For example, can twist into the assemble line thigh to the line thigh of a fibrid with the line thigh of another kind of fiber, and then it is woven into rope.Perhaps, also can be the synthetic bicomponent fiber of group of fibers with sheath and core.Also can use other structure.Fibers dissimilar in the rope can any required office of portion exist.
Rope of the present invention preferably comprises the blend of 2 kinds or multiple high-tenacity fiber, or mainly is made up of 2 kinds or multiple high-tenacity fiber, randomly with fluoropolymer fibers.These ropes can have any suitable structure, as kernmantle, add torsade, twist composite steel rope, parallel core rope etc.Most preferably rope is a kernmantle.This class rope can have any suitable diameter, and available any suitable method is formed by required fiber and/or yarn.For example, when forming Knitted rope, can use the traditional braiding machine that contains a plurality of yarn tubes.As known in the art, rotate with the yarn tube, the upper and lower each other braiding of yarn is collected at last and receives on the reel for rope.Braiding machine detailed and be known in the art by its method that forms rope is so needn't give unnecessary details at this.
Can make the son rope to the yarn that forms by a kind of high-tenacity fiber, and then with forming rope (for example using weave) by the formed son rope of other class high-tenacity fiber.Perhaps, also can make the son rope, with other similar son rope or inhomogeneity rope, make rope then with weave or any other required technology by the blend of high-tenacity fiber.
The high tenacity yarns of formation rope can have any suitable dawn number and the yarn of fluoropolymer fibers can have the dawn number identical or different with the yarn of high-tenacity fiber.For example, high tenacity yarns can be about 50～about 5000 d, more preferably from about 75～about 2000 d, more preferably from about 200～about 2000 d and most preferably from about 650～about 1500 d again.The fluoropolymer yarn can be about 50～about 2500 d, more preferably from about 400～about 1600 d.
According to the present invention, on rope structure, can be coated with certain coating composition.No matter fiber or yarn one by one, or the blend of fiber or yarn can the coating composition compositions, form rope by coated fiber or yarn then, or form rope and then coating composition composition earlier.Coating composition comprise the aminofunctional organic siliconresin and in and low molecular weight polyethylene.Two kinds of components can any required mixed, among for example about 1～about 99wt% and the aminofunctional organic siliconresin of low molecular weight polyethylene and respective amount.All percentage compositions all are the wt% of composition total weight, except as otherwise noted.Amount with low molecular weight polyethylene in preferred is about 30～about 90wt%, and correspondingly, the amount of aminofunctional organic siliconresin is about 10～about 70wt%.More preferably and low molecular weight polyethylene be key component in the coating, as account for about 55～about 85wt% of composition weight, and the amount of aminofunctional organic siliconresin is about 15～about 45wt%.Composition can contain multiple other additive, depends on required final performance.
Because some high-tenacity fibers as high-modulus polyethylene fibres, have scribbled spin finish often in formation, so in the present invention, used here coating composition is called the cover finish composition sometimes.
Aminofunctional siloxanes preferably is emulsion form.Preferred emulsion comprises about 20～about 40wt% organic siliconresin and the pH value is about 4.5～about 6.5.Emulsion preferably includes nonionic emulsifier.
Equally, also be emulsion form with low molecular weight polyethylene in.Preferably polyethylene neutralizes fully.Low molecular weight polyethylene also is called Tissuemat E, also is called wax dispenser sometimes.As known in the art, this quasi-polyethylene wax also is called resin, and its molecular weight generally all less than about 6000Dalton, is more preferably less than about 5000Dalton, even more preferably less than about 3500Dalton, and 300～about 3000Dalton most preferably from about.
Coating composition can be mixed in any suitable manner.For example, can be in stainless steel or other inert containers, during the aminofunctional siloxanes emulsion added and low molecular weight polyethylene.The container preferred disposition has agitator, suitably to mix low the shearing under (laminar flow) condition.By during the aminofunctional siloxanes emulsion is added and low molecular weight polyethylene, can make the pH value of system remain alkalescence.Perhaps, also can add the aminofunctional siloxanes emulsion to low molecular weight polyethylene.Mixing can be in any suitable temperature, preferred about 15～about 45 ℃, more preferably from about carries out under 20～about 30 ℃.The solids content of preferred coatings composition is higher, is at least about 25wt% as magnitude, more preferably at least about 30wt%.Most preferably the solids content of coating composition is about 33～about 35wt%.Have been found that and use highly filled emulsion on fiber/yarn or rope, to coat more coating composition.
If composition directly is coated on fiber or the yarn, then can be with any suitable coating apparatus.The example of this class coating apparatus comprises lubricated roller, lick and be coated with roller, dip-coating bath and finishing agent spreader.For uniform coating and outstanding performance are provided, require constant temperature, because the viscosity of system is subjected to the influence of the temperature difference.If coating composition on rope then can be immersed in rope in the bath that contains coating composition, extrude excessive composition then, and then carry out air drying, perhaps, also can be coated with rope, make it then by firing equipment quickening drying, and then carry out air drying.
Be preferably in and coat more final coating solid on fiber/yarn or the rope.The preferred solid of finally coating is at least about 0.5wt%, more preferably at least about 5wt%, and 10～about 30wt% most preferably from about.
For understanding the present invention more fully, provided following indefiniteness embodiment.For illustrating that concrete technology, condition, material, performance that principle of the present invention is mentioned and the data of being reported all are illustrative, should not regard them as limitation of the scope of the invention.All umbers all refer to weight, except as otherwise noted.
Embodiment
Embodiment 1
Form Knitted rope with high tenacity polyethylene yarn and liquid crystal copolyester yarn.Used polyethylene yarn is from Honeywell International Inc.
1000 yarns, its dawn number is 1300d, and toughness is 35g/d, and modulus is 1150g/d.The liquid crystal copolyester yarn is from Kuraray America Inc.
HT 97 type yarns, its dawn number is 1500d, and toughness is 25g/d, and modulus is 600g/d.These yarns have scribbled the cover finish composition.
The cover finish composition by the aminofunctional organic siliconresin and in and low molecular weight polyethylene make.The aminofunctional organic siliconresin is that content of siloxane is that 35wt% and pH value are 4.5～6.5 and comprise the emulsion of nonionic emulsifier, can be available from Dow Corning (2-8818 emulsion).In and low molecular weight polyethylene be the neutralization the nonionic polythene wax emulsion (from ApolloChemical's
1566), its solids content be 29%～31% and the pH value be 9.0～11.
It is as follows that coating composition is made: in advance aminofunctional organic siliconresin emulsion with the low molecular weight polyethylene blend, make resulting composition comprise among the 70wt% and low molecular weight polyethylene.The method of coated yarn is in fiber being immersed in room temperature cover finish composition.The coating content of coating on the yarn is about 15%.
Coated yarn is woven into the 12 strand ropes of the about 5mm of diameter.The method that yarn is woven into rope is as follows: earlier 3 strands coated yarn twist into string together with per inch 0.5 circle.String is pressed S direction and the twisting of Z direction.Then 12 strings in an alternating manner (S, Z, S, Z etc.) be placed on the 12-thigh braiding machine.Then 12 strings are woven together and form 12-thigh Knitted rope.This rope is fibrous by about 63wt% polyethylene fiber and about 37wt% liquid crystal copolyester.
Rope is tested reversed bending (CBOS) property on its anti-pulley.In this test, rope is bent about 180 ° on free rolling pulley or belt pulley.Under load, be placed on rope on the pulley and be recycled to rope and lost efficacy.Test is 1.3 " (3.3cm), carry out with 75 times/min on the belt pulley of D:d=10, be subjected to the load (every face of rope is subjected to 50kg tension force) of 100kg on the pulley.Rope period before inefficacy is determined with 5 mean value.The results are shown in the following table 1.
Embodiment 2 (contrast)
As the contrast of embodiment 1, make Knitted rope with the same manner, but without the cover finish composition.This rope is also tested its anti-CBOS, the results are shown in the following table 1.
Table 1
| Embodiment | Coating | To the cycle-index that lost efficacy |
| 1 | Have | 97,295 |
| 2 * | Do not have | 57,457 |
*Contrast
Data in the table 1 show, have the much higher fatigability of anti-CBOS by the formed rope of blend of high tenacity polyethylene fibers that scribbles coating composition of the present invention and liquid crystal copolyester fiber.
Embodiment 3
Repeat embodiment 1, but rope forms by 40wt% high tenacity polyethylene fibers and 60wt% liquid crystal copolyester fiber, its diameter is about 40mm.Obtain similar results.
Embodiment 4
Repeat embodiment 1, but rope forms by 40wt% high tenacity polyethylene fibers and 60wt% aramid fibre, its diameter is about 40mm.Obtain similar results.
Embodiment 5
Repeat embodiment 1, but rope made by uncoated yarn, and coat the cover finish composition by this rope is immersed in the room temperature cover finish composition making the back.Obtain similar results.
Can see, the invention provides the rope that the fatigability of anti-CBOS has obviously improved.Therefore, this class rope can be used for many high requests to be used, comprise weight promote from and the offshore applications that drops on the sea bed and so on.
After having described in detail the present invention, will be understood that for a person skilled in the art, this class details not necessarily will strictly observe, and can other change and modification be proposed by themselves, all these drops on by in the defined scope of the present invention in the claim subsequently.
Claims (30)
1. have the rope of improved anti-pulley cocycle bending (CBOS) fatigability, described rope comprises high-tenacity fiber, described rope and/or described fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
2. the rope of claim 1, wherein said high-tenacity fiber is selected from following one group: high molecular polyolefine, aromatic polyamides, polyvinyl alcohol, polyacrylonitrile, poly-indoles, polyamide, polyester, liquid crystal polyester, glass, carbon, basalt, mineral fibres and rigid rod fibers, and their blend.
3. the rope of claim 1, wherein said high-tenacity fiber is selected from following one group: high molecular weight polyethylene fiber, aramid fibre, liquid crystal copolyester fiber and their blend.
4. the rope of claim 1, wherein said high-tenacity fiber comprises high tenacity polyethylene fibers and is not the blend of other high-tenacity fiber of polyamide fiber, and described other fiber is aramid fibre and/or liquid crystal copolyester fiber.
5. the rope of claim 4, the amount of wherein said high tenacity polyethylene fibers is about 40～about 60wt%, and the amount of described other fiber is about 60～about 40wt%, is that benchmark calculates with the gross weight of high-tenacity fiber in the described rope.
6. the rope of claim 4, wherein said high-tenacity fiber comprises the blend of high tenacity polyethylene fibers and aramid fibre.
7. the rope of claim 4, wherein said high-tenacity fiber comprises the blend of high tenacity polyethylene fibers and liquid crystal copolyester fiber.
8. the rope of claim 4, the amount of wherein said composition on described rope be described rope weight at least about 5wt%.
9. the rope of claim 4, wherein said low molecular weight polyethylene is the key component of described composition.
10. the rope of claim 4, the amount of wherein said low molecular weight polyethylene is about 55～about 85wt% of described composition total weight.
11. the rope of claim 10, wherein said low molecular weight polyethylene neutralizes fully.
12. the rope of claim 4 also comprises fluoropolymer fibers.
13. the rope of claim 4, wherein said rope is a Knitted rope.
14. the rope of claim 1, the toughness of wherein said high-tenacity fiber is at least about 16g/d.
15. the rope of claim 1, wherein said high-tenacity fiber mainly is made up of aramid fibre.
16. have the rope of the improved fatigability of anti-CBOS, this rope comprises high tenacity polyolefin fibers and is not the blend of other high-tenacity fiber of polyamide fiber, described rope and/or described fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
17. the rope of claim 16, wherein said other high-tenacity fiber comprises aramid fibre and/or liquid crystal copolyester fiber.
18. the rope of claim 17, the amount of wherein said high tenacity polyethylene fibers is about 40～about 60wt%, and described other high-tenacity fiber comprises the aramid fibre that amount is about 60～about 40wt%, is that benchmark calculates with the gross weight of described high-tenacity fiber in the described rope.
19. the rope of claim 18, the amount of wherein said low molecular weight polyethylene are about 55～about 85wt% of described composition total weight, and wherein said low molecular weight polyethylene neutralizes fully.
20. have the rope of the improved fatigability of anti-CBOS, described rope comprises the blend of high tenacity polyolefin fibers and other high-tenacity fiber, described other high-tenacity fiber comprises aramid fibre and/or liquid crystal copolyester fiber, described rope and/or described fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
21. being the about 55～about 85wt% and the wherein said low molecular weight polyethylenes of described composition total weight, the rope of claim 20, the amount of wherein said low molecular weight polyethylene neutralize fully.
22. improve the method for rope in pulley cocycle flexible life, described method comprises by high-tenacity fiber and forms described rope, described rope and/or form coating on the described fiber of described rope comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
23. the method for claim 22, wherein said high-tenacity fiber comprise the blend of high tenacity polyethylene fibers and other high-tenacity fiber, described other high-tenacity fiber comprises aramid fibre and/or liquid crystal copolyester fiber.
24. the method for claim 23 comprises with described composition being coated with described rope, the amount of wherein said low molecular weight polyethylene is about 55～about 85wt% of described composition total weight, and wherein said low molecular weight polyethylene neutralizes fully.
25. the method for claim 24, the solids content of wherein said composition is at least about 25wt%.
26. the method for claim 25, the form of wherein said aminofunctional organic siliconresin about emulsion of 9～about 11 that is the pH value.
27. the method for claim 23 comprises with described composition being coated with described fiber, the amount of wherein said low molecular weight polyethylene is that the about 55～about 85wt% and the described low molecular weight polyethylene of described composition total weight neutralizes fully.
28. in the method that weight is promoted certainly and be placed into synthetic fiber rope on the sea bed, improvements comprise with the rope that comprises high-tenacity fiber as described rope, described rope and/or described fiber scribble comprise the aminofunctional organic siliconresin and in and the composition of low molecular weight polyethylene.
29. the method for claim 28, wherein said rope comprises the blend of high tenacity polyethylene fibers and aramid fibre.
30. the method for claim 28, wherein said rope comprises the blend of high tenacity polyethylene fibers and liquid crystal copolyester fiber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/361,180 US20070202328A1 (en) | 2006-02-24 | 2006-02-24 | High tenacity polyolefin ropes having improved cyclic bend over sheave performance |
| US11/361,180 | 2006-02-24 | ||
| US11/481,872 | 2006-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101389804A true CN101389804A (en) | 2009-03-18 |
Family
ID=38444366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800061821A Pending CN101389804A (en) | 2006-02-24 | 2007-02-21 | Ropes having improved cyclic bend over sheave performance |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20070202328A1 (en) |
| CN (1) | CN101389804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820387A (en) * | 2018-08-10 | 2020-02-21 | 奥的斯电梯公司 | Load-bearing traction member and method |
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|---|---|---|---|---|
| US7858180B2 (en) * | 2008-04-28 | 2010-12-28 | Honeywell International Inc. | High tenacity polyolefin ropes having improved strength |
| DE102008031044B4 (en) | 2008-06-26 | 2014-08-21 | Thyssenkrupp Marine Systems Gmbh | Device for submarines as a deflector |
| NO20141103A1 (en) * | 2014-09-12 | 2016-03-14 | Offshore & Trawl Supply As | Streamlining cover in protective sheath for an elongated, load-bearing body |
| CN105648807B (en) * | 2016-04-05 | 2018-12-14 | 如皋市顺源电力绳网带织造有限公司 | A kind of production method of high-tenacity fibre traction rope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820387A (en) * | 2018-08-10 | 2020-02-21 | 奥的斯电梯公司 | Load-bearing traction member and method |
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| Publication number | Publication date |
|---|---|
| US20070202328A1 (en) | 2007-08-30 |
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Application publication date: 20090318 |