KR102457680B1 - Rope - Google Patents

Abstract

The present invention provides a composite rope which includes: a core rope including a first rope, a second rope, and a third rope; and an outer rope surrounding the core rope. The composite rope according to the present invention is eco-friendly and has excellent physical properties such as durability, abrasion resistance, and tensile strength, and thus can be applied to various fields.

Description

Rope

The present invention relates to a rope.

A rope is a means used for the purpose of binding an object or wrapping an object by weaving it in a net shape, and is used in various ways throughout the industry.

Rope is divided into wire rope and synthetic rope according to the material used.

A wire rope is a rope manufactured to have high strength by twisting several strands of steel wire. A typical field of use of the wire rope is that it is covered with a slope formed along the side of the road in the state of being woven in a net shape, and accidents such as falling rocks can occur. It is used as a fall prevention net to prevent it from occurring.

Synthetic rope is a rope made by twisting several strands of yarn molded from nylon, polyester, vinylon, etc. , it is used as a tree grafting net that binds the roots together with the soil to protect the roots.

As such a rope, there is a need for a rope that is environmentally friendly and has excellent physical properties such as durability, abrasion resistance, and tensile strength applicable to various fields.

Patent Document 1: Republic of Korea Patent 10-2162741

The present invention has been devised to solve the above problems, and an object of the present invention is to provide an environmentally friendly rope applicable to various fields and at the same time excellent in physical properties such as durability, abrasion resistance, and tensile strength.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention

a core rope comprising a first rope, a second rope and a third rope; and

It provides a composite rope comprising; an outer rope surrounding the core rope.

Also, the present invention

The first rope, the second rope and the third rope include fibers made of polypropylene,

The first rope, the second rope and the third rope are coated with a first functional composition,

The first functional composition comprises (a) 23-33 parts by weight of a block copolymer of methacrylic acid-2-ethoxyethyl ester and n-butyl acrylate having a weight average molecular weight of 30,000 to 60,000, (b) a non-functional acrylic monomer , 34-44 parts by weight of a monomer compound containing an acrylic monomer containing a hydroxyl group and an acrylic monomer containing an epoxy group, (c) 0.1-1 parts by weight of a polymerization initiator, (d) 1-5 parts by weight of an aziridine crosslinking agent, ( e) 11-21 parts by weight of nano silica sol surface-modified with siloxane, (f) 4-8 parts by weight of rosin ester-based tackifier, (g) 2-6 parts by weight of polypropylene glycol, (h) oxoric acid ( 5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylate; Oxolinic Acid) 1-5 parts by weight and (i) antioxidant 0.1-5 parts by weight including wealth,

The outer rope includes fibers prepared by spinning a mixed solution containing a polyester-based polymer and graphene in a weight ratio of 9.5:0.5-8.5:1.5,

The outer rope is coated with a second functional composition,

The second functional composition comprises (A) 30-40% by weight of methyl methacrylate monomer units, 30-40% by weight of ethyl methacrylate monomer units, 10-20% by weight of acrylic acid monomer units, and 3,4-epoxycyclohexylmethyl A prepolymer is prepared by reacting 60-70 parts by weight of an acrylic copolymer containing 10-20% by weight of a methacrylate monomer unit, (B) a polyol, a hydrophilic compound containing a hydroxyl group and an anionic group, and an isocyanate compound, and the After neutralization by adding a basic compound to the prepolymer, 10-20 parts by weight of a urethane-based polymer obtained by reacting with a chain extender, (C) 3-7 parts by weight of polydimethylsiloxane, (D) ethyl perfluorobutyl ether 1-5 parts by weight, (E) 0.5-4 parts by weight of hydroquinol bis(2,6-dimethylphenyl)phosphate, (F) 0.5-4 parts by weight of tetrabromobisphenol A, (G) 0.1-3 oxoric acid parts by weight, (H) 0.1-3 parts by weight of silver nanoparticles having a particle size of 10-20 nm, (I) 0.1-3 parts by weight of zinc oxide nanoparticles having a particle size of 40-50 nm, (J) 3-mer It provides a composite rope comprising 0.1-3 parts by weight of captopropyltrimethoxysilane, (K) 0.1-3 parts by weight of titania, and (L) 0.1-3 parts by weight of alumina.

The composite rope according to the present invention is environmentally friendly and has excellent physical properties such as durability, abrasion resistance, and tensile strength, and thus can be applied to various fields.

1 is a photograph showing a composite rope according to an embodiment of the present invention.

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described herein may be variously modified. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, specific embodiments disclosed in the accompanying drawings are only provided to facilitate understanding of various embodiments. Therefore, the technical spirit is not limited by the specific embodiments disclosed in the accompanying drawings, and it should be understood to include all equivalents or substitutes included in the spirit and scope of the invention.

Terms including ordinal numbers such as first, second, first, second, etc. may be used to describe various elements, but these elements are not limited by the above-described terms. The above terminology is used only for the purpose of distinguishing one component from another component.

In this specification, terms such as 'comprising' or 'having' are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof. When it is said that an element is 'connected' or 'connected' to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is mentioned that a certain element is 'directly connected' or 'directly connected' to another element, it should be understood that the other element does not exist in the middle.

In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be abbreviated or omitted.

The present invention is a core rope comprising a first rope, a second rope and a third rope; and

It provides a composite rope comprising; an outer rope surrounding the core rope.

At this time, the composite rope according to an embodiment of the present invention is shown as a photograph in FIG. 1, and below, with reference to FIG. 1, the composite rope according to the present invention will be described in detail.

1, the composite rope 100 according to the present invention includes a core rope 10, and the core rope 10 is a first rope 11, a second rope 12 and a third rope ( 13).

The first rope 11 includes fibers made of polypropylene, the second rope 12 includes fibers made of polypropylene, and the third rope 13 includes fibers made of polypropylene. . The first rope 11 , the second rope 12 , and the third rope 13 may be a fiber bundle formed of fibers made of polypropylene, and form the core of the composite rope 100 as the core rope 10 . can do.

In addition, the first rope 11, the second rope 12 and the third rope 13 are preferably coated with the first functional composition.

The first functional composition includes (a) a block copolymer of methacrylic acid-2-ethoxyethyl ester and n-butyl acrylate having a weight average molecular weight of 30,000 to 60,000, (b) a non-functional acrylic monomer, and a hydroxyl group A monomer compound containing an acrylic monomer and an acrylic monomer containing an epoxy group, (c) a polymerization initiator, (d) an aziridine crosslinking agent, (e) a nano silica sol surface-modified with siloxane, (f) a rosin ester-based tackifier , (g) polypropylene glycol, (h) oxolinic acid (5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo [4,5-g] quinoline-7-carboxylate; Oxolinic Acid) and (i) an antioxidant.

The first functional composition preferably contains (a) 23-33 parts by weight of a block copolymer of methacrylic acid-2-ethoxyethyl ester and n-butyl acrylate having a weight average molecular weight of 30,000 to 60,000, and 27- More preferably, it contains 29 parts by weight, and most preferably contains 28 parts by weight. By including the methacrylic acid-2-ethoxyethyl ester unit, adhesion, retention and durability can be secured, and the viscosity can be adjusted without problems in physical properties by including the n-butyl acrylate unit.

The first functional composition preferably contains 34-44 parts by weight, and 38-40 parts by weight of (b) a non-functional acrylic monomer, an acrylic monomer containing a hydroxyl group, and a monomer compound containing an acrylic monomer containing an epoxy group. More preferably, it is most preferable to include 39 parts by weight. The non-functional acrylic monomer 75-85: acrylic monomer containing a hydroxyl group 7-17: acrylic monomer containing an epoxy group is included in a weight ratio of 3-13. Excellent adhesiveness and curing properties can be secured by applying a monomer compound in which the non-functional acrylic monomer, the acrylic monomer including a hydroxyl group, and the acrylic monomer including the epoxy group are mixed in the above ratio.

The first functional composition includes (c) 0.1-1 parts by weight of the polymerization initiator, more preferably 0.1-0.5 parts by weight, and most preferably 0.1 parts by weight. The polymerization initiator is a medium for polymerization reaction of each composition, and when the content is less than 0.05 parts by weight, the reaction rate is slow, productivity is lowered, and there is a possibility that unreacted monomers may remain in the composition. On the other hand, when it exceeds 3.0 parts by weight, it is difficult to control the reaction rate due to a rapid temperature rise, and there is a concern that the degree of polymerization and molecular weight are lowered, thereby reducing the cohesive force of the adhesive, so it is most preferable to use 0.1 parts by weight. As the polymerization initiator, a peroxide-based polymerization initiator and an azo-based polymerization initiator may be used. Specifically, the peroxide-based polymerization initiator includes benzoyl peroxide, acetyl peroxide, and dila. Uryl peroxide (dilauryl peroxide), di-tert-butyl peroxide (di-tert-butyl peroxide), cumyl hydroperoxide (cumyl hydroperoxide), hydrogen peroxide (hydrogen peroxide) can be used. In addition, in addition to the polymerization initiator, a known acetal-based, hemiacetal-based, and redox-based polymerization initiator can be used, and the azo-based polymerization initiator is azobisisobutyronitrile (Azobisisobutyronitrile), Azonitrile, azo ester, azo amide, azo amidine or azoimidazoline may be used. In addition, in addition to the polymerization initiator, well-known acetal-based, hemiacetal-based, and redox-based polymerization initiators may be used. This is possible.

The first functional composition includes (d) 1-5 parts by weight of the aziridine crosslinking agent, more preferably 2-4 parts by weight, and most preferably 3 parts by weight. The crosslinking agent is added to form an excellent crosslinking network by interaction between the polar functional group and the crosslinking agent, and can improve adhesion and cohesion, and pentaerythol-tris-(beta-(N-aziridinyl)pro It may be a cionate.

The first functional composition preferably contains 11-21 parts by weight of the nano silica sol surface-modified with (e) siloxane, more preferably 15-17 parts by weight, and most preferably 16 parts by weight.

The first functional composition preferably contains 4-8 parts by weight of the rosin ester-based tackifier (f), more preferably 5-7 parts by weight, and most preferably 6 parts by weight. It is added to improve adhesion, and if the content is less than 4 parts by weight, the effect of improving the adhesion may be insignificant, and if it exceeds 8 parts by weight, it may be uneconomical.

The first functional composition preferably contains 2-6 parts by weight of (g) polypropylene glycol, more preferably 3-5 parts by weight, and most preferably includes 4 parts by weight. The polypropylene glycol is used as a diluent component.

The first functional composition is (h) oxolinic acid (5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylate; Oxolinic Acid) 1- It preferably contains 5 parts by weight, more preferably 2-4 parts by weight, and most preferably contains 3 parts by weight. The oxoric acid is an organic antibacterial agent exhibiting antibacterial activity, and may be applied as an arbitrary salt, preferably the sodium salt of oxoric acid.

The first functional composition preferably contains (i) 0.1-5 parts by weight of the antioxidant, more preferably 0.5-2 parts by weight, and most preferably 0.9 parts by weight.

The first rope 11, the second rope 12 and the third rope 13 composed of the core rope 10 are coated with the first functional composition to impart antibacterial properties to the core rope 10 itself and provide high tensile strength. It improves the physical properties of the overall composite rope 100 by imparting strength and durability, and further increases adhesion and durability in wrapping the core rope 10 with the outer rope 20 .

The outer rope 20 surrounds the core rope 10 .

The outer rope 20 preferably includes fibers prepared by spinning a mixed solution containing a polyester-based polymer and graphene in a weight ratio of 9.5:0.5-8.5:1.5. It has significantly increased resistance to fatigue, such as causing high stress by using a fiber prepared by spinning a mixed solution by mixing a polyester-based polymer and graphene in a specific weight ratio as the outer rope 20 .

In addition, it is preferable to use the outer rope coated with the second functional composition.

The second functional composition comprises (A) 30-40% by weight of methyl methacrylate monomer units, 30-40% by weight of ethyl methacrylate monomer units, 10-20% by weight of acrylic acid monomer units, and 3,4-epoxycyclohexylmethyl A prepolymer is prepared by reacting an acrylic copolymer containing 10-20% by weight of a methacrylate monomer unit, (B) a polyol, a hydrophilic compound containing a hydroxyl group and an anionic group, and an isocyanate compound, and a basic compound is added to the prepolymer After neutralization by addition, a urethane-based polymer obtained by reacting with a chain extender, (C) polydimethylsiloxane, (D) ethyl perfluorobutyl ether, (E) hydroquinol bis (2,6-dimethylphenyl) Phosphate, (F) tetrabromobisphenol A, (G) oxoric acid, (H) silver nanoparticles having a particle size of 10-20 nm, (I) zinc oxide nanoparticles having a particle size of 40-50 nm, ( J) 3-mercaptopropyltrimethoxysilane, (K) titania and (L) alumina.

The second functional composition comprises (A) 30-40% by weight of methyl methacrylate monomer units, 30-40% by weight of ethyl methacrylate monomer units, 10-20% by weight of acrylic acid monomer units, and 3,4-epoxycyclohexylmethyl It is preferable to include 60-70 parts by weight of the acrylic copolymer containing 10-20% by weight of the methacrylate monomer unit, more preferably 64-66 parts by weight, and most preferably include 65 parts by weight. As the acrylic copolymer, 30-40 wt% of methyl methacrylate monomer units, 30-40 wt% of ethyl methacrylate monomer units, 10-20 wt% of acrylic acid monomer units, and 3,4-epoxycyclohexylmethyl methacrylate monomer By applying a unit containing 10-20% by weight, it increases the durability on the surface of the composite rope 100.

The second functional composition is prepared by reacting (B) a polyol, a hydrophilic compound containing a hydroxyl group and an anionic group, and an isocyanate compound to prepare a prepolymer, neutralizing the prepolymer by adding a basic compound, and then reacting with a chain extender It is preferable to include 10-20 parts by weight of the obtained urethane-based polymer, more preferably 14-16 parts by weight, and most preferably 15 parts by weight.

The polyol is preferably a polyester polyol, and the polyester polyol is obtained by polycondensation of a diol having 2-8 carbon atoms and ε-caprolactone, and a polycaprolactone polyol having a number average molecular weight of 500 or more and a polycaprolactone polyol having 6-10 carbon atoms. It includes a polyester polyol polycondensed with dicarboxylic acid having a linear structure of phosphorus and diol having a linear structure having 2-8 carbon atoms. The diol having 2-8 carbon atoms may be ethanediol, propanediol, butanediol, pentanediol, hexanediol, cyclohexanediol, neopentyl glycol and derivatives thereof, and the dicarboxyl having a linear structure having 6-10 carbon atoms. The acid may be adipic acid, azelaic acid, and sebacic acid.

The hydrophilic compound having a hydroxyl group and an anionic group introduces a hydrophilic anionic group to the urethane-based polymer. The hydroxyl group may react with an isocyanate group. The hydrophilic compound preferably has two hydroxyl groups and one anionic group, and the anionic group may be a carboxyl group, a phosphonic group or a phosphoric acid group, and is preferably a phosphonic acid group or a phosphoric acid group.

The isocyanate compound preferably contains two or more isocyanate groups, preferably 1,4-tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate, 1,12-dodecamethylene diisocyanate, cyclohexane 1, 3- or 1,4-diisocyanate, 1-isocyanato-3-isocyanatomethyl-3,5,5-trimethylcyclohexane (isophoronediisocyanate, IPDI), bis-(4-isocyanatocyclo) Hexyl)methane, 2- or 4-isocyanatocyclohexyl-2'-isocyanatocyclohexyl methane, 1,3- or 1,4-bis(isocyanatomethyl)-cyclohexane, bis-(4- isocyanato-3-methylcyclohexyl)methane, 1,3- or 1,4-α,α,α′,α′-tetramethylxylenediisocyanate, 2,4- or 2,6-toluenediisocyanate, 2,2'-, 2,4'- or 4,4'-diisocyanatodiphenylmethane (MDI), 4,4-diisocyanatodicyclohexylmethane (H12MDI), 1,5-naphthalene diisocyanate, p- or m-phenylene diisocyanate, xylene diisocyanate, diphenyl-4,4'-diisocyanate, etc. can be used, and xylene diisocyanate is most preferably used.

The second functional composition preferably contains 3-7 parts by weight of (C) polydimethylsiloxane, more preferably 4-6 parts by weight, and most preferably 5 parts by weight. The polydimethylsiloxane increases abrasion resistance to prevent a decrease in the lifespan of the rope.

The second functional composition preferably contains 1-5 parts by weight of (D) ethyl perfluorobutyl ether, more preferably 2-4 parts by weight, and most preferably 3 parts by weight. do. By applying the perfluorine butyl ethyl ether (ethyl perfluorobutyl ether) it can represent the dichromaticity.

The second functional composition preferably contains (E) 0.5-4 parts by weight of hydroquinol bis(2,6-dimethylphenyl)phosphate and (F) 0.5-4 parts by weight of tetrabromobisphenol A, each 1-3 parts by weight. It is more preferable to include parts by weight, and most preferably includes 2 parts by weight each. The hydroquinol bis(2,6-dimethylphenyl)phosphate and tetrabromobisphenol A are applied as flame retardants, and excellent heat resistance and weather resistance can be ensured.

The second functional composition comprises (G) 0.1-3 parts by weight of oxoric acid, (H) 0.1-3 parts by weight of silver nanoparticles having a particle size of 10-20 nm, and (I) oxide having a particle size of 40-50 nm It is preferable to include 0.1-3 parts by weight of zinc nanoparticles, more preferably 0.5-2 parts by weight, and most preferably, 1 part by weight, respectively. The oxoric acid is an organic antibacterial agent exhibiting antibacterial activity, and may be applied as an arbitrary salt, preferably the sodium salt of oxoric acid. The silver nanoparticles and zinc oxide nanoparticles are inorganic antibacterial agents exhibiting antibacterial activity, and are applied together with oxoric acid, an organic antibacterial agent, to further maximize antibacterial activity.

The second functional composition preferably contains 0.1-3 parts by weight of (J) 3-mercaptopropyltrimethoxysilane, more preferably 0.5-2 parts by weight, and most preferably 1 part by weight. . The 3-mercaptopropyltrimethoxysilane may further increase durability by increasing adhesion and adhesion to fibers.

The second functional composition preferably contains (K) 0.1-3 parts by weight of titania and (L) 0.1-3 parts by weight of alumina, more preferably 0.5-2 parts by weight, each containing 1 part by weight it is most preferable The titania and alumina can be applied as a sunscreen, and in particular, the high heat resistance prevents a decrease in the lifespan of the rope. In addition, it has insect repellency, which aids in antibacterial performance.

The composite rope according to the present invention is environmentally friendly and has excellent physical properties such as durability, abrasion resistance, and tensile strength, and thus can be applied to various fields.

Claims (2)

a core rope comprising a first rope, a second rope and a third rope; and
Including; outer rope surrounding the core rope;
The first rope, the second rope and the third rope include fibers made of polypropylene,
The first rope, the second rope and the third rope are coated with a first functional composition,
The first functional composition comprises (a) 23-33 parts by weight of a block copolymer of methacrylic acid-2-ethoxyethyl ester and n-butyl acrylate having a weight average molecular weight of 30,000 to 60,000, (b) a non-functional acrylic monomer , 34-44 parts by weight of a monomer compound containing an acrylic monomer containing a hydroxyl group and an acrylic monomer containing an epoxy group, (c) 0.1-1 parts by weight of a polymerization initiator, (d) 1-5 parts by weight of an aziridine crosslinking agent, ( e) 11-21 parts by weight of nano silica sol surface-modified with siloxane, (f) 4-8 parts by weight of rosin ester-based tackifier, (g) 2-6 parts by weight of polypropylene glycol, (h) oxoric acid ( 5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylate; Oxolinic Acid) 1-5 parts by weight and (i) antioxidant 0.1-5 parts by weight including wealth,
The outer rope includes fibers prepared by spinning a mixed solution containing a polyester-based polymer and graphene in a weight ratio of 9.5:0.5-8.5:1.5,
The outer rope is coated with a second functional composition,
The second functional composition comprises (A) 30-40% by weight of methyl methacrylate monomer units, 30-40% by weight of ethyl methacrylate monomer units, 10-20% by weight of acrylic acid monomer units, and 3,4-epoxycyclohexylmethyl A prepolymer is prepared by reacting 60-70 parts by weight of an acrylic copolymer containing 10-20% by weight of a methacrylate monomer unit, (B) a polyol, a hydrophilic compound containing a hydroxyl group and an anionic group, and an isocyanate compound, and the After neutralization by adding a basic compound to the prepolymer, 10-20 parts by weight of a urethane-based polymer obtained by reacting with a chain extender, (C) 3-7 parts by weight of polydimethylsiloxane, (D) ethyl perfluorobutyl ether 1-5 parts by weight, (E) 0.5-4 parts by weight of hydroquinol bis(2,6-dimethylphenyl)phosphate, (F) 0.5-4 parts by weight of tetrabromobisphenol A, (G) 0.1-3 oxoric acid parts by weight, (H) 0.1-3 parts by weight of silver nanoparticles having a particle size of 10-20 nm, (I) 0.1-3 parts by weight of zinc oxide nanoparticles having a particle size of 40-50 nm, (J) 3-mer A composite rope comprising 0.1-3 parts by weight of captopropyltrimethoxysilane, (K) 0.1-3 parts by weight of titania, and (L) 0.1-3 parts by weight of alumina. delete

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