KR20210046899A - Cleat having excellent fire protection property - Google Patents

Abstract

The present invention relates to a fire protection cleat. According to a specific example, the fire protection cleat comprises: a base layer comprising a resin matrix and a flame retardant dispersed in the resin matrix; and a reinforcing fiber layer laminated on the surface of the base layer. The base layer is formed using a first composition comprising a base resin and a flame retardant. The flame retardant includes a phosphorus-based flame retardant and an inorganic flame retardant. The inorganic flame retardant includes at least one of an expandable flame retardant, a hydroxide-based flame retardant, a boron-based flame retardant, a silicon-based flame retardant, and a carbonate-based flame retardant.

Description

Chahwa Cleat {CLEAT HAVING EXCELLENT FIRE PROTECTION PROPERTY}

The present invention relates to a chafing cleat.

If the power cable is burned or damaged due to a fire in the power outlets and common areas that supply power to general homes, plants, and various facilities, as well as personal and property damage, power supply to general homes and various industrial facilities is cut off. Since damage occurs, research is being conducted to prevent cable damage in case of fire.

In order to protect the power cable from such a fire, a method of replacing a non-flammable power cable with a flame-retardant cable or installing a shield cover on the surface of the power cable has been applied.

Meanwhile, the cleat, which serves to fix the cable when installing the power cable in the structure, is combined by combining the upper member and the lower member each formed with a semicircular hole for accommodating the cable inside and fastening it with bolts. So you can restrain the cable.

However, the conventional cleats were mainly formed of metallic materials, and the shielding properties and flame retardant effects were insignificant, so that there was a high possibility of damage in case of fire, and the possibility of damage to the power cable due to the cleat breakage was high, and there was a problem of low economic efficiency due to high production cost. Therefore, it is necessary to develop a cleat having low production cost and excellent shielding property and flame retardancy.

Background technology related to the present invention is published in Korean Patent Publication No. 10-1973665 (published on September 28, 2017, title of invention: fireproof partition).

One object of the present invention is to provide a shielding cleat having excellent shielding properties, heat resistance and flame retardancy.

Another object of the present invention is to provide a chafing cleat excellent in stiffness, durability, elasticity and impact resistance.

Another object of the present invention is to provide a chalet with excellent productivity and economy.

One aspect of the present invention relates to a shading cleat. In one embodiment, the shading cleat includes a base layer including a resin matrix and a flame retardant dispersed in the resin matrix; And a reinforcing fiber layer laminated on the surface of the base layer, wherein the base layer is formed using a first composition comprising a base resin and a flame retardant, and the flame retardant includes a phosphorus-based flame retardant and an inorganic flame retardant, and the inorganic-based The flame retardant includes at least one of an expandable flame retardant, a hydroxide-based flame retardant, a boron-based flame retardant, a silicon-based flame retardant, and a carbonate-based flame retardant.

In one embodiment, the first composition may include 100 parts by weight of the base resin and 10 to 150 parts by weight of a flame retardant.

In one embodiment, the base resin may include one or more of silicone, epoxy, urethane, olefin, ethylene vinyl acetate, and polyvinyl chloride.

In one embodiment, the base resin may include 5 to 80% by weight of a siloxane compound, 3 to 40% by weight of a silanol compound, and 5 to 60% by weight of a carbinol compound.

In one embodiment, the phosphorus-based flame retardant may include one or more of phosphate-based, phosphonate-based, phosphinate-based, phosphine-based, and phosphazene-based.

In one embodiment, the expandable flame retardant includes at least one of expanded graphite and pearlite, and the hydroxide-based flame retardant includes at least one of aluminum hydroxide (Al(OH) ₃ ) and magnesium hydroxide (Mg(OH) ₃ ), The boron-based flame retardant includes at least one of boron trioxide (B ₂ O ₃ ), boric acid (H ₃ BO ₃ ) and borax (Na ₂ B ₄ O ₇ ), and the silicon-based flame retardant is silica (SiO ₂ ), silicic acid Including at least one of potassium (K ₂ SiO ₃ ) and magnesium silicate (Mg ₂ SiO ₃ ), and the carbonate-based flame retardant may include at least one of potassium carbonate (K ₂ CO ₃ ) and calcium carbonate (CaCO ₃ ) have.

In one embodiment, the flame retardant may include a phosphorus-based flame retardant and an inorganic flame retardant in a weight ratio of 1:0.3 to 1:3.

In one embodiment, the inorganic flame retardant may include expanded graphite, aluminum hydroxide (Al(OH) ₃ ), borax (Na ₂ B ₄ O ₇ ) and calcium carbonate (CaCO ₃ ).

In one embodiment, the inorganic flame retardant may include expanded graphite, aluminum hydroxide, borax, and calcium carbonate in a weight ratio of 1:1 to 3:2 to 5:1 to 8.

In one embodiment, the reinforcing fiber layer includes at least one of glass fiber, carbon fiber, rayon fiber, and ceramic fiber impregnated with a matrix resin, and the base resin fiber is acetate fiber, polyamide fiber, aramid fiber, polyester fiber, polyolefin It may include one or more of fibers and polyacrylonitrile fibers.

In one embodiment, the reinforcing fiber layer may have a fiber surface density of 50 to 500 m ² /g.

^{In one embodiment, the shading cleat may have an impact resistance of 10 kJ/m 2} or more, measured according to KS M ISO 180 standard, for a specimen having a thickness of 4 mm, and a vertical tensile load measured according to KS M ISO 180 standard, may be 1000 N or more. .

The chafing cleat according to the present invention may be excellent in shading, heat resistance and flame retardancy, stiffness, durability, elasticity and impact resistance, and may be excellent in productivity and economy.

FIG. 1 shows the chafing cleat of Example 1. FIG.
FIG. 2 shows the chafing cleat of Example 2. FIG.
Fig. 3 shows the chafing cleat of Example 2.

In describing the present invention, when it is determined that a detailed description of a related known technology or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

In addition, terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users or operators, so the definitions should be made based on the contents throughout the present specification describing the present invention.

Chahwa Cleat

One aspect of the present invention relates to a shading cleat. In one embodiment, the shading cleat includes a base layer including a resin matrix and a flame retardant dispersed in the resin matrix; And a reinforcing fiber layer laminated on the surface of the base layer.

Hereinafter, the shading cleats will be described in more detail.

Base layer

The base layer is formed using a first composition including a base resin and a flame retardant. For example, it may be formed using a first composition including a liquid base resin and a flame retardant.

Base resin

The base resin may include one or more of silicone, epoxy, urethane, olefin, ethylene vinyl acetate, and polyvinyl chloride. In addition, the base resin may further contain elastomer components such as natural rubber and synthetic rubber.

For example, it may contain a silicone resin. On the other hand, when a fire occurs for a long time when manufacturing a chafing cleat by applying only silicon alone, oxygen (O) is released from the Si-0-Si bond structure of silicon, and the molecular structure is broken. As a result, the carbonized layer may be broken, and the fire may be continuously scoured inward, leading to a fire. For this reason, when the base resin is used only as a silicone resin, it may be difficult to pass the highly difficult fire test.

In one embodiment, the base resin may include 5 to 80% by weight of a siloxane compound, 3 to 40% by weight of a silanol (SiOH) compound, and 5 to 60% by weight of a carbinol compound. When included in the above range, the fire resistance, flame retardancy and mechanical strength of the base layer are excellent, so that even when a fire occurs for a long time, the carbonized layer formed with the flame retardant primarily can easily prevent the fire from being transferred to the inside.

The siloxane compound may be included to ensure durability of the base layer. The siloxane compound may include organopolysiloxane.

In one embodiment, the siloxane compound may have a weight average molecular weight of 500 to 5000 g/mol. In the above molecular weight range, the base layer may have excellent fire resistance, flame retardancy and mechanical strength. The siloxane compound may be included in an amount of 5 to 80% by weight based on the total weight of the base resin. In the above range, the compatibility of the base resin, heat resistance, and shielding properties may be excellent.

The silanol compound may include a compound containing a silanol group (SiOH-). The silanol compound may be included to improve the shading performance by forming a bonding structure with the siloxane compound and the carbinol compound. In one embodiment, the silanol compound may have a molecular weight of 500 to 5000 g/mol. In the above molecular weight range, the base layer may have excellent fire resistance, flame retardancy and mechanical strength. The silanol compound may be included in an amount of 3 to 40% by weight based on the total weight of the base resin. In the above range, the compatibility and difference between the base resin may be excellent.

The carbinol compound may be included for the purpose of improving elasticity and dispersibility of a flame retardant. For example, the carbinol compound may include a compound containing a _{carbinol group (CH 3 OH-) in the main chain.} In one embodiment, the carbinol compound may have a molecular weight of 5000 g/mol or less. When included in the above range, the blendability of the base resin and dispersibility of the flame retardant may be excellent. For example, it may be 500 to 5000 g/mol. In one embodiment, the carbinol compound may be included in an amount of 5 to 60% by weight based on the total weight of the base resin. When included in the above range, the blendability of the base resin and dispersibility of the flame retardant may be excellent.

Flame retardant

In one embodiment, the flame retardant includes a phosphorus flame retardant and an inorganic flame retardant. When the flame retardant is included, the flame retardant component coagulates in case of a fire to prevent penetration of the fire, and thus, the shielding property and fire resistance may be excellent.

In one embodiment, the phosphorus-based flame retardant may include at least one of a phosphate-based, phosphonate-based, phosphinate-based, phosphine-based, and phosphazene-based flame retardant.

In one embodiment, the phosphate-based flame retardant is ammonium phosphate, ammonium polyphosphate, trimethyl phosphate, triethyl phosphate, tributyl phosphate, trioctyl phosphate, triphenyl phosphate, tricresyl phosphate, trizyreyl phosphate, cresyldiphenyl phosphate, It may contain one or more of octyldiphenylphosphate.

In one embodiment, the phosphonate-based flame retardant may include diphenyl-methyl-phosphonate.

In one embodiment, the phosphinate-based flame retardant may include one or more of phosphinate and phosphinate-based metal salts.

In one embodiment, the phosphine-based flame retardant is tris diethyl phosphinate aluminum, tris methyl ethyl phosphinate aluminum, tris diphenyl phosphinate aluminum, bisdiethyl phosphinate zinc, bismethyl ethyl phosphinate zinc, bis diphenyl phosphinate zinc , Bisdiethyl phosphinate titanyl, bis methyl ethylphosphinate titanyl, and bis diphenyl phosphinate titanyl.

In one embodiment, the phosphazene-based flame retardant may include at least one of cyclic phenoxy phosphazene, linear phenoxy phosphazene, and phenoxy phosphazene.

In one embodiment, the inorganic flame retardant includes at least one of an expandable flame retardant, a hydroxide-based flame retardant, a boron-based flame retardant, a silicon-based flame retardant, and a carbonate-based flame retardant.

In one embodiment, the expandable flame retardant may include at least one of expanded graphite and pearlite. For example, it may include expanded graphite.

In one embodiment, the hydroxide-based flame retardant may include at least one of _{aluminum hydroxide (Al(OH) 3} ) and magnesium hydroxide (Mg(OH) _{3 ).} For example, it may include aluminum hydroxide (Al(OH) ₃ ).

In one embodiment, the boron-based flame retardant may include at least one of boron trioxide (B ₂ O ₃ ), boric acid (H ₃ BO ₃ ) and borax (Na ₂ B ₄ O ₇ ). For example, it may contain borax.

In one embodiment, the silicon-based flame retardant may include one or more of _{silica (SiO 2} ), potassium silicate (K ₂ SiO ₃ ), and magnesium silicate (Mg ₂ SiO _{3 ).} For example, it may contain potassium silicate.

In one embodiment, the carbonate-based flame retardant may include at least one of _{potassium carbonate (K 2} CO ₃ ) and calcium carbonate (CaCO _{3 ).} For example, it may contain calcium carbonate.

In the manufacture of conventional cleats, the flame retardant is a method of softening a thermoplastic plastic and then blending an inorganic flame retardant. In this case, when a flame retardant of a certain amount or more was added, the structure of the molded body became sloppy and easily broken, and it was impossible to exhibit high flame retardant performance.

On the other hand, in the present invention, since the flame retardant is added to the liquid base resin, it is easy to mix the flame retardant, and the flame retardant component is organically blended between the resin matrix structures, so that the flame retardant component is chemically and physically strong by a chemical reaction. Can be placed.

In one embodiment, silica (SiO ₂ ), boron trioxide (B ₂ O ₃ ) and aluminum oxide (Al ₂ O ₃ ) may form a solidified oxide (carbonized film) when a fire occurs. At this time, the boron trioxide may serve as a melting point lowering agent.

In one embodiment, the flame retardant of the present invention comprises an expandable flame retardant that is carbonized at about 300°C, a hydroxide-based flame retardant that is carbonized at about 500°C, a phosphorus-based flame retardant that is carbonized at about 700°C, and a silicon-based and carbonate-based flame retardant that is carbonized at about 1000°C. Can be organically blended. When a fire occurs under the above conditions, the carbide of the expandable flame retardant exhibiting flame retardant performance at about 300°C is combined with the hydroxide-based flame retardant carbide exhibiting flame retardant performance at about 500°C, and subsequently phosphorus flame retardant exhibiting flame retardant performance at about 700°C. It combines with the carbides of the flame retardant and the carbides of the flame retardant that exhibited flame retardant performance at about 1000°C. Therefore, in the event of a fire, the resin matrix and the oxide of the flame retardant are solidified to prevent the spread and propagation of the fire.

In one embodiment, the flame retardant may include a phosphorus-based flame retardant and an inorganic flame retardant in a weight ratio of 1:0.3 to 1:3. When included in the above range, the dispersibility of the flame retardant in the resin matrix may be excellent, and a synergistic effect of shielding property, heat resistance, and flame retardancy may be excellent. For example, the flame retardant may include a phosphorus-based flame retardant and an inorganic flame retardant in a weight ratio of 1:0.5-1:1.

In one embodiment, an auxiliary flame retardant may be further included as the flame retardant, for example, sodium oxide (Na ₂ O) may be further included. For example, the flame retardant may include a phosphorus-based flame retardant, an inorganic flame retardant, and an auxiliary flame retardant in a weight ratio of 1:0.3-3:0.1-1. When included in the above range, the dispersibility of the flame retardant in the resin matrix may be excellent, and the synergistic effect of shielding property, heat resistance, and flame retardancy may be excellent.

In one embodiment, the inorganic flame retardant may include expanded graphite, aluminum hydroxide (Al(OH) ₃ ), borax (Na ₂ B ₄ O ₇ ) and calcium carbonate (CaCO ₃ ). When the inorganic flame retardant is included, it may be excellent in economic efficiency, and excellent in shielding property and heat resistance.

In one embodiment, the inorganic flame retardant may include expanded graphite, aluminum hydroxide, borax, and calcium carbonate in a weight ratio of 1:1 to 3:2 to 5:1 to 8. When included in the above content ratio, an unpredictable synergistic effect occurs between inorganic flame retardant components, and thus economic efficiency may be excellent, and shielding properties and heat resistance may be excellent. For example, the expanded graphite, aluminum hydroxide, borax, and calcium carbonate may be included in a weight ratio of 1:1-2:2-3:3-5.

In another embodiment, the inorganic flame retardant may include an expandable flame retardant and an inorganic flame retardant other than the expandable flame retardant in a weight ratio of 1:4 to 1:10. When included in the above content ratio, an unpredictable synergistic effect occurs between inorganic flame retardant components, and thus economic efficiency may be excellent, and shielding properties and heat resistance may be excellent.

In one embodiment, the base layer may be formed using a thermosetting resin composition including the base resin and a flame retardant.

In one embodiment, the flame retardant may be included in an amount of 10 to 150 parts by weight based on 100 parts by weight of the base resin. When included in the above content, the shielding property and heat resistance may be excellent, and the mechanical strength of the base layer may be excellent. For example, 30 to 90 parts by weight may be included.

Curing catalyst

In one embodiment, the curing catalyst is an isocyanate catalyst, fine powder platinum, platinum black, chloroplatinic acid, alcohol-modified chloroplatinic acid, chloroplatinic acid-olefin complex, chloroplatinic acid-alkenylsiloxane complex, and chloroplatinic acid-divinyltetramethyldi It may contain one or more of the siloxane complexes. The isocyanate-based catalyst may include a modified isocyanate-based catalyst.

In one embodiment, the curing catalyst may be included in an amount of 0.0001 parts by weight to 5 parts by weight based on 100 parts by weight of the base resin. In the above range, it may be easy to control the curing reaction rate of the base resin. For example, 0.01 parts by weight to 3 parts by weight may be included.

additive

In one embodiment, the first composition may further include 0.001 to 10 parts by weight of an additive based on 100 parts by weight of the base resin. In one embodiment, the additive may include at least one of a light stabilizer, a heat stabilizer, an antioxidant, an antistatic agent, and a lubricant, but is not limited thereto.

Reinforcing fiber layer

The reinforcing fiber layer is laminated on the surface of the base layer to reinforce tensile strength, impact resistance and durability. In the case of applying the cleat including the base layer on which the reinforcing fiber layer is laminated, the tensile strength and impact resistance are improved compared to the case of applying a single material. Cables can be fixed without breaking the cleats. In addition, it has elasticity and can prevent physical damage to the cable sheath.

In one embodiment, the reinforcing fiber layer includes at least one of glass fiber, carbon fiber, rayon fiber, and ceramic fiber impregnated with a matrix resin, and the base resin fiber is acetate fiber, polyamide fiber, aramid fiber, polyester fiber, polyolefin It may include one or more of fibers and polyacrylonitrile fibers. Under the above conditions, the impact resistance and durability of the reinforcing fiber layer may be excellent, and light weight of the chafing cleat may be excellent.

The matrix resin may include a thermoplastic resin or a thermosetting resin. For example, it may include one or more of epoxy-based, urethane-based, amide-based, acrylic, ester-based, silicone-based, and olefin-based resins.

In one embodiment, the fibers may be in the form of mesh, woven or non-woven fabric.

In one embodiment, the method of manufacturing the reinforcing fiber layer includes preparing an upper mold and a lower mold defining a predetermined cavity, injecting a matrix resin into the lower mold, and fixing and inserting the fiber into the upper mold. It can be prepared including the step of demolding after an hour. In the upper mold, when the fiber is mounted on the rod to deeply insert the fiber, a cavity is formed when the fiber is removed. This part can be filled by injecting the base resin once more.

In one embodiment, the fiber may have a fiber density of 50 to 500 m ² /g. Under the above conditions, the impact resistance and durability of the reinforcing fiber layer may be excellent, and light weight of the chafing cleat may be excellent.

In one embodiment, the thickness of the reinforcing fiber layer may be 0.1 to 20 mm. In the above range, mechanical properties may be excellent.

^{In one embodiment, the shading cleat may have an impact resistance of 10 kJ/m 2} or more, measured according to KS M ISO 180 standard, for a specimen having a thickness of 4 mm, and a vertical tensile load measured according to KS M ISO 180 standard, may be 1000 N or more. .

^{For example, the chafing cleat may have an impact resistance of 10 to 60 kJ/m 2} and a vertical tensile load of 1000 to 4000 N, measured according to the KS M ISO 180 standard for a specimen having a thickness of 4 mm.

The shielding cleat according to the present invention can be used in all cable installation locations installed in the power outlet and the common section, and when applied to the location where the shielding cover is installed, the combustion prevention effect can be maximized. In addition, it is effective in responding to disaster prevention policies as well as enhancing the company's image by reducing maintenance costs and preventing safety accidents by preventing cable damage and preventing large-scale power outages.

Hereinafter, the configuration and operation of the present invention will be described in more detail through preferred embodiments of the present invention. However, this has been presented as a preferred example of the present invention and cannot be construed as limiting the present invention in any sense. Contents not described herein can be sufficiently technically inferred by those skilled in this technical field, and thus description thereof will be omitted.

Examples and Comparative Examples

Example 1

As shown in Table 1 below, 100 parts by weight of a base resin (including 5 to 80% by weight of a siloxane compound, 3 to 40% by weight of a silanol compound, and 5 to 60% by weight of a carbinol compound), 30 parts by weight of a phosphorus-based flame retardant (triphenyl phosphate), and A first composition containing 55 parts by weight of an inorganic flame retardant was prepared. The inorganic flame retardant was used as an expandable flame retardant (expanded graphite), aluminum hydroxide, borax, and calcium carbonate in a weight ratio of 1:1 to 2:1 to 3: 1 to 2. (Expandable flame retardant: including 5 parts by weight based on 100 parts by weight of the base resin)

The first composition is thermally cured to form a base layer, and a reinforcing fiber layer (epoxy resin impregnated in a cloth-shaped carbon fiber) is laminated on the surface of the base layer to form a support type structure as shown in FIG. 1 below. Cleats were prepared. Referring to FIG. 1, the support-type shading cleat, the surface of the pedestal should be free from flaws, cracks, protrusions, etc. that are harmful for use, and the surface and the edge where the power cable contacts are made smooth so that the cable shell is not damaged, It is formed in a structure with a groove of 10 mm so that it can be easily inserted into the hanger.

Example 2

As shown in Table 1 below, a first composition including 100 parts by weight of a base resin, 50 parts by weight of a phosphorus-based flame retardant (diphenyl-methyl-phosphonate), and 35 parts by weight of an inorganic flame retardant was prepared. The inorganic flame retardant was used to contain expanded graphite, aluminum hydroxide, borax, and calcium carbonate in a weight ratio of 1:1 to 2:1 to 3: 1 to 2 by weight. (Expandable flame retardant: including 5 parts by weight based on 100 parts by weight of the base resin)

The first composition was thermally cured to form a base layer, and the same reinforcing fiber layer as in Example 1 was laminated on the surface of the base layer to prepare a horizontal fixed type chafing cleat having a structure as shown in FIG. 2 below. Referring to FIG. 2, the horizontally fixed vehicle cleat has a structure in which the upper (or front) and lower (or rear) brackets can be simultaneously fixed to the “a”-shaped hanger or cable head bracket with two bolts. Was formed.

Example 3

As shown in Table 1 below, a first composition including 100 parts by weight of a base resin, 80 parts by weight of a phosphorus-based flame retardant, and 25 parts by weight of an inorganic flame retardant was prepared. The inorganic flame retardant was used to contain expanded graphite, aluminum hydroxide, borax, and calcium carbonate in a weight ratio of 1:1 to 2:1 to 3: 1 to 2 by weight. (Expandable flame retardant: including 5 parts by weight based on 100 parts by weight of the base resin)

The first composition was thermally cured to form a base layer, and the same reinforcing fiber layer as in Example 1 was laminated on the surface of the base layer to prepare a vertically fixed chafing cleat having a structure as shown in FIG. 3 below.

Comparative Example 1

Example 1, except that a base layer was formed using a first composition comprising 100 parts by weight of a base resin, 70 parts by weight of a phosphorus-based flame retardant, and 35 parts by weight of an inorganic-based flame retardant as shown in Table 1 below, and the reinforcing fiber layer was not laminated. A chahwa cleat was manufactured in the same manner as described above. (Expandable flame retardant: including 5 parts by weight based on 100 parts by weight of the base resin)

(Base resin: siloxane compound 5 to 80% by weight, silanol compound 3 to 40% by weight, and carbinol compound 5 to 60% by weight included)

Property evaluation 1

Impact resistance and tensile load: The impact resistance and vertical tensile load measured according to the KS M ISO 180 standard were evaluated for the specimens of Examples 1 to 3 and Comparative Example 1 having a thickness of 4 mm, and the results are shown in Table 2 below.

Property evaluation 2

For Examples 1 to 3 and Comparative Example 1, the following nine items were evaluated based on the fire safety standard (NFSC 506) of a combustion prevention facility, and the results are shown in Table 2 below.

(1) Oxygen Index: The oxygen index must be 40% or higher.

(2) Low chlorine test: It should be less than 60mg/g.

(3) Cooling and heat characteristics: Let stand at 80℃ for 24 hours and at -15℃ for 24 hours as 1 cycle, and there should be no abnormalities by repeating at least two times.

(4) Smoke concentration: It should be 400 or less.

(5) Salt water resistance: There should be no abnormalities after immersion in saline solution for more than 10 days.

(6) Weather resistance: With a weather resistance tester, there should be no abnormalities after exposure for 400 hours.

(7) Oil resistance: It should be immersed in oil for 2 days and there should be no abnormalities.

(8) Tensile strength: It should be 5.6MPa or more.

(9) Hazardous Substances: The six substances in the Enforcement Decree of the Act on Resource Recycling of Electric/Electronic Products and Vehicles should be restricted.

Referring to the results of Table 2, it was found that the chafing cleat of the present invention satisfies the impact resistance and tensile load standards targeted by the present invention, and satisfies the fire safety standards of the combustion prevention facility. On the other hand, in the case of Comparative Example 1 not including the reinforcing fiber layer of the present invention, it was found that the impact resistance and tensile load were lower than those of Examples 1 to 3.

Simple modifications or changes of the present invention can be easily implemented by those of ordinary skill in the art, and all such modifications or changes can be considered to be included in the scope of the present invention.

Claims (12)

A base layer comprising a resin matrix and a flame retardant dispersed in the resin matrix; And
Including; a reinforcing fiber layer laminated on the surface of the base layer,
The base layer is formed using a first composition containing a base resin and a flame retardant,
The inorganic flame retardant comprises at least one of an expandable flame retardant, a hydroxide-based flame retardant, a boron-based flame retardant, a silicon-based flame retardant and a carbonate-based flame retardant.
The chafing cleat according to claim 1, wherein the first composition comprises 100 parts by weight of a base resin and 10 to 150 parts by weight of a flame retardant.
The chafing cleat according to claim 1, wherein the base resin comprises at least one of silicone, urethane, epoxy, olefin, ethylene vinyl acetate, and polyvinyl chloride.
The chahwa cleat according to claim 3, wherein the base resin comprises 5 to 80% by weight of a siloxane compound, 3 to 40% by weight of a silanol compound, and 5 to 60% by weight of a carbinol compound.
The chafing cleat according to claim 1, wherein the phosphorus-based flame retardant comprises at least one of phosphate-based, phosphonate-based, phosphinate-based, phosphine-based, and phosphazene-based.
The chafing cleat according to claim 1, wherein the flame retardant comprises a phosphorus-based flame retardant and an inorganic flame retardant in a weight ratio of 1:0.3 to 1:3.
The method of claim 1, wherein the expandable flame retardant comprises at least one of expanded graphite and pearlite,
The hydroxide-based flame retardant includes at least one of _{aluminum hydroxide (Al(OH) 3} ) and magnesium hydroxide (Mg(OH) _{3 ),}
The boron-based flame retardant includes at least one of boron trioxide (B ₂ O ₃ ), boric acid (H ₃ BO ₃ ) and borax (Na ₂ B ₄ O ₇ ),
The silicon-based flame retardant includes at least one of silica (SiO ₂ ), potassium silicate (K ₂ SiO ₃ ) and magnesium silicate (Mg ₂ SiO ₃ ), and,
The carbonate-based flame retardant comprises at least one of _{potassium carbonate (K 2} CO ₃ ) and calcium carbonate (CaCO _{3 ).}
The chafing cleat according to claim 1, wherein the inorganic flame retardant comprises expanded graphite, aluminum hydroxide (Al(OH) ₃ ), borax (Na ₂ B ₄ O ₇ ) and calcium carbonate (CaCO _{3 ).}
The chafing cleat according to claim 8, wherein the inorganic flame retardant comprises expanded graphite, aluminum hydroxide, borax, and calcium carbonate in a weight ratio of 1:1 to 3:2 to 5:1 to 8.
The method of claim 1, wherein the reinforcing fiber layer comprises at least one of glass fibers, carbon fibers, rayon fibers, and ceramic fibers impregnated with a matrix resin,
The base resin fiber is an acetate fiber, polyamide fiber, aramid fiber, polyester fiber, polyolefin fiber, polyacrylonitrile fiber, characterized in that it comprises at least one of the car cleat.
The chafing cleat according to claim 1, wherein the reinforcing fiber layer has a fiber surface density of 50 to 500 m ² /g.
The method of claim 1, wherein the shading cleat has an impact resistance of 10 kJ/m ² or more, measured according to KS M ISO 180 standard, for a specimen having a thickness of 4 mm, and a vertical tensile load measured according to KS M ISO 180 standard is 1000 N or more. Chassis cleats, characterized in that.

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