KR101535079B1 - Manufacturing method and Thermoplastic Olefin Elastomer of flame retardant rein thereof - Google Patents

Abstract

The present invention relates to a flame-retardant resin composition and a manufacturing method thereof and, more specifically, to a TOE flame-retardant resin composition and a manufacturing method thereof which is capable of securing flame resistance by being used as a flame-retardant material for polyolefin (PO), thermoplastic elastomer (TPE), thermoplastic polyurethane (TPU), thermoplastic rubber (TPR), thermoplastic olefin(TPO), thermoplastic polyeth erester elastomer (TPEE), etc. The flame-retardant resin composition comprises a polyolefin resin, thermoplastic olefin elastomer (TOE), magnesium hydroxide (Mg(OH)_2), a thermal stabilizer, an antioxidant, a coupling agent, a lubricating agent, and a crosslinking agent. The composition is eco-friendly, and has excellent flame retardant properties using magnesium hydroxide instead of environmentally hazardous substances, and capable of improving mechanical properties such as durability, wear resistance, etc., and improving tensile strength and mechanical strength at the same time using polypropylene and high density polyethylene.

Description

[TECHNICAL FIELD] The present invention relates to a flame retardant resin composition and a method for manufacturing the flame retardant resin composition,

More particularly, the present invention relates to a flame retardant resin composition and a method for producing the flame retardant resin composition, and more particularly to a flame retardant resin composition which is environmentally friendly by excluding the use of harmful heavy metals and harmful substances as a flame retardant agent, blends the TOE and the crosslinking agent to realize crosslinking between molecules, To a flame retardant resin composition having improved mechanical properties such as durability and abrasion resistance and a manufacturing method thereof.

Generally, a flame retardant is an additive added to plastic to improve the flammability of a plastic. It is added to plastic to prevent contact between plastic and oxygen, and a function to prevent combustion by releasing incombustible gas .

In the case of plastic, since combustion is easy and poisonous gas is generated during combustion, a flame retardant is added to strengthen the combustibility and to reduce the occurrence of toxic gas generated in the combustion.

Herein, the flame retardant is classified into an organic flame retardant and an inorganic flame retardant. The organic flame retardant includes a halogen compound (cancellation chlorine system), phosphorus (phosphoric ester system) and the like. The inorganic flame retardant includes antimony trioxide (Sb ₂ O ₃ ) Compounds, heavy metal compounds, calcium carbonate (CaCO ₃ ), magnesium carbonate (MgHCO ₃ ), clay, talc and the like.

On the other hand, the flame retardant resin composition to which the flame retardancy is imparted is not only widely used for ships, automobile parts, electric appliances, electronic appliances, other office equipment, insulating materials for electric wires and flame retardant insulating materials such as sheath, .

Polylarene-based resin is used as such a flame-retardant insulating material, but the polylarene-based resin is easily ignited and a large amount of smoke containing toxic gas is generated at the time of fire, resulting in secondary damage to human life.

In order to solve the above-described problems, antimony (Sb), bromine (Br) and chlorine (Cl) have been used for the polyolefin resin to realize a flame retardant insulating material. However, antimony, Which is harmful to the human body as well as causing environmental pollution.

In other words, antimony (Sb), bromine (Br) and chlorine (Cl), which are used as flame retardants, are composed of harmful heavy metals and harmful substances, which releases toxic gases such as dioxin during combustion, Has been regulated and restricted in its use gradually by imposing seriousness on the environmental pollution of the earth.

In the case of flame retardants composed of harmful heavy metals and harmful substances, that is, antimony, bromine and chlorine flame retardants, the gases generated during the combustion are harmful to the human body and the use and application are restricted due to harmfulness to the human body. The application of antimony, bromine and chlorine-based flame retardants is gradually being limited.

In recent years, demand for non-halogen flame retardant resin materials has been increasing, and an inorganic hydroxide flame retardant, especially aluminum hydroxide or magnesium hydroxide, has been proposed as a flame retardant in a polyolefin resin composition in non-halogen flame retardant resin materials.

US Patent No. 4840987 proposes a non-halogen flame retardant heat-shrinkable tube in which magnesium hydroxide is added to an ethylene-vinyl acetate copolymer resin. Such a halogen-free flame retardant heat-shrinkable tube has the advantage of being environmentally friendly, There is a problem in that a large amount of smoke is generated when a fire is not generated and the formation of char is not desirable during combustion and a drip phenomenon occurs in which the combustible melts down, there was.

Due to the above-mentioned problems, in the technology using the inorganic hydroxide flame retardant, an excessive amount of an inorganic flame retardant should be added in order to obtain a desired level of nonflammability, but an inorganic flame retardant, which is a polar material having poor compatibility with plastics, There is a problem that mechanical properties such as elongation and tensile strength are deteriorated. When using an excessive amount of the inorganic flame retardant, a separate compatibilizer is required to disperse the inorganic flame retardant uniformly in the plastic structure, thereby increasing the manufacturing cost and complicating the manufacturing process There was a problem.

In addition, in the case of a composition to which a conventional flame retardant is applied, there is a problem that the use is limited due to breakage and deformation at an extreme or high temperature due to a suitable operating temperature range of -15 ° C to 105 ° C.

On the other hand, in the case of plastic materials applied to cases and housings of displays and home appliances, there is a demand for materials having high gloss and flame retardancy and improved scratch resistance, but they are generally vulnerable to scratch resistance , A casing containing a flame retardant material and a casing of a cable to be applied to an automobile has a problem that damage or breakage occurs due to friction due to vibration and vibration, thereby causing problems such as electric leakage through a cable.

Therefore, there is a demand for a flame retardant resin composition which can be sufficiently flame retarded, and has improved mechanical properties and processability.

U.S. Patent No. 4,840,987, Korean Patent Application No. 2008-0137185.

Disclosure of the Invention The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide an antireflection coating composition which is environmentally friendly and flame retardant by using magnesium hydroxide instead of environmentally harmful substances such as antimony, bromine and chlorine, It is an object of the present invention to provide a TOE flame retardant resin composition which is improved in tensile strength and mechanical strength by using propylene, high density polyethylene, and TOE, while improving mechanical properties such as durability and abrasion resistance, and a manufacturing method thereof.

Further, the present invention realizes cross-linking between the molecules by blending the TOE and the crosslinking agent, so that it is strong against scratches and strong against vibration, and can prevent destruction and thermal deformation according to temperature, It can be used for automobile wire materials, automobile interior materials such as artificial leather and filler materials, and wire materials for ships requiring vibration and durability. It can be used for PO (Poly Olefin), TPE TOE flame retardant resin composition which can be used as a flame retardant material for Thermo Plastic Elastomer, TPU (Thermoplastic Polyurethane), TPR (Thermo Plastic Rubber), TPO (Thermo Plastic Olefin) and TPEE (Thermoplastic Polyether Ester Elastomer) And a method for producing the same.

In order to achieve the above object, the present invention provides a polyolefin resin composition comprising: a polyolefin resin; TOE; Magnesium hydroxide (Mg (OH) ₂ ); Thermal stabilizers; Antioxidants; Coupling agents; Lubricant; And crosslinking agents; And a control unit.

24 to 28% by weight of a polyolefin resin based on 100% by weight of the total polyolefin composition; 3% to 7% by weight of the TOE; From 46% to 50% by weight of magnesium hydroxide (Mg (OH) ₂ ); 4% to 8% by weight of a heat stabilizer; From 4% to 8% by weight of an antioxidant; 6% to 10% by weight of a coupling agent; 0.3% to 0.7% by weight of lubricant; And 0.3% to 0.7% by weight of a crosslinking agent; to be.

The polyolefin resin is at least one selected from the group consisting of polypropylene (PP), high density polyethylene (HDPE), and low density polyethylene (LDPE).

The polyolefin resin is 52 to 55% by weight of a polypropylene resin and 45 to 48% by weight of a high-density polyethylene (HDPE) resin based on 100% by weight of the entire polyolefin resin.

Meanwhile, polyolefin (polyolefin) resin and TOE are put into a kneading plant and compounded; Adding a heat stabilizer and an antioxidant to the blend; Adding magnesium hydroxide (Mg (OH) ₂ ) and a coupling agent to the mixture to form a mixture; And blending the lubricant and the crosslinking agent into the blend; And a control unit.

Wherein the polyolefin composition comprises 24 to 28% by weight of a polyolefin resin, 3 to 7% by weight of a TOE, 4 to 8% by weight of a heat stabilizer and 4% by weight of an antioxidant based on 100% (Mg (OH) ₂ ) 45 wt% to 51 wt%, the coupling agent 6 wt% to 10 wt%, the lubricant 0.3 wt% to 0.7 wt%, and the crosslinking agent 0.3 wt% to 0.7 wt% .

The polyolefin resin is at least one selected from the group consisting of polypropylene (PP), high density polyethylene (HDPE), and low density polyethylene (LDPE).

The polyolefin resin is 52 to 55% by weight of a polypropylene resin and 45 to 48% by weight of a high-density polyethylene (HDPE) resin based on 100% by weight of the entire polyolefin resin.

At this time, when the polyolefin resin and the TOE are charged, the rotor in the kneading equipment is rotated and operated at 15 rpm to 25 rpm for 5 minutes to 10 minutes.

When the heat stabilizer and the antioxidant are added, the kneading apparatus is closed, and the rotor is rotated at 15 rpm to 25 rpm for 5 minutes to 10 minutes to form a solid.

When the magnesium hydroxide and the coupling agent are added, the temperature of the kneading apparatus is 160 ° C to 180 ° C, and the rotor is rotated and operated at 60 rpm to 100 rpm for 7 minutes to 13 minutes.

INDUSTRIAL APPLICABILITY As described above, the present invention having the above-described constitution has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a flame-retardant flame retardant resin composition which eliminates environmentally harmful substances such as harmful heavy metals and harmful substances, It is eco-friendly by preventing the emission of toxic gas during combustion. It has improved tensile strength and mechanical strength as well as improved mechanical properties such as durability and abrasion resistance, and is excellent in scratch resistance and vibration resistance. It is possible to obtain effects such as prevention of breakage and thermal deformation at a very high temperature of 占 폚.

In addition, the present invention can be used as an insulating material required for manufacturing wires and cables, a polyvinyl chloride compound for a jacket, and can be used as a power source for electric wire materials, It can be applied to electric wire material and communication line of electric power line supplying electric power line which supplies vibration and durability. It can be used for automobile wire material, artificial leather and filler, (TPE), Thermo Plastic Rubber (TPR), Thermo Plastic Olefin (TPO) and Thermoplastic Polyether Ester Elastomer (TPEE) as well as polyolefin And so on.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the scope of the present invention, but is merely an example, and various modifications can be made without departing from the technical spirit of the present invention.

The TOE flame retardant resin composition according to the present invention comprises a polyolefin resin, a thermoplastic olefin elastomer (TOE), magnesium hydroxide (Mg (OH) ₂ ) and an additive, wherein the additive is a stabilizer, An antioxidant, a coupling agent, a lubricant, and a crosslinking agent.

The TOE flame retardant resin composition includes 24 to 28% by weight of a polyolefin resin based on 100% by weight of the total of the TOE flame retardant resin composition, 3 to 7% by weight of the TOE is used, and magnesium hydroxide (Mg (OH) ₂₎ 46% to 50% by weight is used, a heat stabilizer 4% to 8% by weight is used, antioxidants 4% to 8% by weight is used, and coupling agent 6% to 10 wt. By weight, 0.3% by weight to 0.7% by weight of a lubricant is used, and 0.3% by weight to 0.7% by weight of a crosslinking agent is used.

At this time, the polyolefin resin is preferably composed of at least one selected from the group consisting of polypropylene (PP), high density polyethylene (HDPE), and low density polyethylene (LDPE) , But not limited to.

On the other hand, when the polyolefin resin is composed of a polypropylene resin and a high-density polyethylene resin, the polyolefin resin preferably comprises 52% by weight to 55% by weight of a polypropylene resin, a high-density polyethylene (HDPE) HDPE) resin from 45% to 48% by weight.

Here, as the polypropylene resin, a homopolymer, which is a polymer in which one or more kinds of units are regularly arranged at the same interval, is preferably applied, but is not limited thereto.

By applying the homopolymer, the tensile strength is improved and the mechanical strength is improved.

The high density polyethylene (HDPE) resin is a synthetic resin containing ethylene as a main material and has excellent mechanical properties such as high strength, hardness, heat resistance, cold resistance and mechanical strength, and is excellent in low transparency and deformability, , Used for water and gas pipes, and used for various containers and insulating materials.

By applying the high-density polyethylene resin in this way, high density and abrasion resistance are improved.

In one embodiment of the present invention, the polyolefin resin comprises 52% by weight to 55% by weight of a polypropylene resin and 45% by weight of a high density polyethylene (HDPE) resin based on 100% by weight of the total polyolefin resin. % To 48% by weight of the polypropylene resin is used, more preferably 53.84% by weight of the polypropylene resin and 46.16% by weight of the high-density polyethylene resin are used.

At this time, when the polypropylene resin is used in an amount less than 52% by weight, it is difficult to impart mechanical strength such as tensile strength. When the polypropylene resin is used in an amount exceeding 55% by weight, there is a risk of breakage.

When the high-density polyethylene resin is used in an amount of less than 45% by weight, it is difficult to impart heat resistance and cold resistance. When the high-density polyethylene resin is used in an amount exceeding 48% by weight, it is difficult to deform.

Meanwhile, in one embodiment of the present invention, the polyolefin resin is selected from the group consisting of polypropylene (PP), high density polyethylene (HDPE), and low density polyethylene (LDPE) But is not limited to, a block copolymer of a high density polyethylene, a medium density polyethylene, a low density polyethylene, a linear low density polyethylene, a polypropylene, an alpha olefin having 3 to 15 carbon atoms and an irregular ( random copolymer, ethylene-vinyl acetate (EVA) copolymer, ethylene-ethyl acrylate copolymer, and ethylene-methyl acrylate copolymer, but is not limited thereto .

The TOE (Thermoplastic Olefin Elastomer) is a polyolefin thermoplastic elastomer, which is excellent in elasticity, resilience, and impact resistance, which is a general property of rubber, and has thermoplastic properties and can be easily processed by molding methods such as compression, It is applied to the fields of automobile, household appliance, electric wire, cable and miscellaneous goods.

Here, the TOE is intended to stabilize the substitutional work that occurs when mixing and mixing the polypropylene resin and the high-density polyethylene resin, and the polyolefin resin comprising the polypropylene resin and the high-density polyethylene resin is acid-treated and denatured.

In one embodiment of the present invention, 3 wt% to 7 wt% of the TOE is used, but more preferably 5 wt% of the TOE is used.

The magnesium hydroxide (Mg (OH) ₂ ) is used as a flame retardant. Here, the magnesium hydroxide is an environmentally friendly inorganic flame retardant and is used to improve compatibility with a polyolefin resin and mechanical properties.

In one embodiment of the present invention, 46 wt% to 50 wt% of magnesium hydroxide is used, but more preferably 48 wt% of magnesium hydroxide is used.

On the other hand, the additives include a heat stabilizer, an antioxidant, a coupling agent, a lubricant, and a crosslinking agent.

The stabilizer stabilizes thermally induced deformation of the polyethylene resin, which is composed of polypropylene resin and high-density polyethylene resin, when the TOE is mixed.

The thermostabilizer may be at least one selected from the group consisting of Ba / Zn, Ba, Ba / Zn, Na / Za, Sn and Zn so as to maintain the physical and chemical properties of the polyethylene resin. However, this is not the case.

In one embodiment of the present invention, 4% by weight to 8% by weight of the heat stabilizer is used, and more preferably 6% by weight of the heat stabilizer is used.

The antioxidant is used to prevent changes in physical properties generated during the processing of an olefinic thermoplastic polymer compound such as polyethylene. The heat and shear stress applied to the polymer compound in the processing step cause pyrolysis by radicals Chain breakage reaction, cross-linking reaction, or the like.

For this purpose, the antioxidant is preferably a phenol-based antioxidant, which is a primary antioxidant called a radical scavenger, but is not limited thereto.

In one embodiment of the present invention, the antioxidant is a phenol-based antioxidant, but the antioxidant may be an amine antioxidant.

As described above, when an antioxidant is added during mixing with the polyolefin resin comprising the polypropylene resin and the high-density polyethylene resin, the peroxide formed by the automatic oxidation of the polymer reacts with the antioxidant to prevent deterioration, Prevent decomposition.

In one embodiment of the present invention, the amount of the antioxidant is preferably 4 wt% to 8 wt%, more preferably 6 wt%.

The coupling agent is used for improving the interfacial adhesion when the resin is synthesized to improve the properties of the composite material. The coupling agent is a polyolefin resin comprising the polypropylene resin and the high-density polyethylene resin, and a heat stabilizer and an antioxidant when added to the TOE. And serves as a catalyst.

For this purpose, the coupling agent is composed of silane-based silicon hydride (Si (OH) ₄ ).

In an embodiment of the present invention, the coupling agent is a silane coupling agent, but the coupling agent may be at least one of a silane coupling agent, a titanate coupling agent, and a chromium coupling agent, but is not limited thereto.

In an embodiment of the present invention, 6 wt% to 10 wt% of the coupling agent is used, but more preferably 8 wt% of the coupling agent is used.

The lubricant is for preventing discoloration that may occur during the kneading process, and Ca-St is applied.

In one embodiment of the present invention, 0.3 wt% to 0.7 wt% of the lubricant is preferably used, and more preferably 0.5 wt% of the lubricant is used.

The cross-linking agent is formed into a net structure by chemically bonding the polymer resin of linearly-kneaded structure through a kneading process.

For this purpose, the crosslinking agent is composed of peroxide. In one embodiment of the present invention, 0.3 wt% to 0.7 wt% of the crosslinking agent is preferably used, and more preferably 0.5 wt% of the crosslinking agent is used.

In an embodiment of the present invention, the additive added to the TOE flame retardant resin composition includes a heat stabilizer, an antioxidant, a coupling agent, a lubricant, and a crosslinking agent. However, the TOE flame retardant resin composition may contain glass fiber, calcium carbonate, talc, It is also possible to improve the mechanical, thermal and electrical properties by adding fillers or ultraviolet stabilizers composed of at least one of silica, wood powder, chalk and wool-tonite, or to block ultraviolet rays.

In addition, additives such as a plasticizer, an antistatic agent, or an impact modifier may be further added to the TOE flame retardant resin composition, but the present invention is not limited thereto.

As described above, the addition of additives including a heat stabilizer, an antioxidant, a coupling agent, a lubricant and a crosslinking agent to the polyolefin resin and the TOE and magnesium hydroxide (Mg (OH) ₂ ) The TOE flame retardant resin composition is manufactured by the following manufacturing method through a kneading facility in which a city rotor is installed.

A polyolefin resin including a polypropylene resin and a high density polyethylene (HDPE) resin is charged while a rotor installed in the kneading facility is rotated, and a thermoplastic olefin elastomer (TOE) And the rotor is rotated at a low speed of 15 rpm to 25 rpm for 5 to 10 minutes. Then, a heat stabilizer and an antioxidant are added to the formulation and mixed. At this time, the kneading equipment is closed, and the rotor is rotated at a low speed of 15 rpm to 25 rpm for 5 to 10 minutes to centrifuge the solid so that the solid sinks. The coupling agent and magnesium hydroxide are then added to the formulation. At this time, the kneading equipment is closed, and the rotor is rotated at a low speed of 15 rpm to 25 rpm for 5 to 10 minutes to centrifuge the solid so that the solid sinks. At this time, the temperature of the kneading apparatus is 160 ° C to 180 ° C, and the rotor is rotated at a high speed of 60rpm to 100rpm for 7 minutes to 13 minutes to prepare a TOE flame retardant resin composition.

Example

Hereinafter, the present invention will be described in detail with reference to Examples. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be exemplary and explanatory only and are not restrictive of the invention, It should not be construed as an intention to limit the scope.

Example 1

26% by weight of a polyolefin resin was charged based on 100% by weight of the entire TOE flame retardant resin composition while the rotor installed in the kneading apparatus was rotated, and polypropylene (polypropylene) 55% by weight of a resin, and 45% by weight of a high density polyethylene (HDPE) resin. 3% by weight of TOE (Thermoplastic Olefin Elastomer) is added and mixed. Polypropylene, high-density polyethylene and TOE are put into the kneading equipment, and the blend is added while rotating the rotor at 20 rpm for 7 minutes. Then, 6 parts by weight of a heat stabilizer and 6 parts by weight of an antioxidant are added to the compounded mixture put into the kneading equipment and mixed. The heat stabilizer and the antioxidant are added to the kneading equipment, and the kneading equipment is sealed when mixing. The rotor is rotated at 20 rpm for 7 minutes to centrifuge the solid so that the solid sinks. Next, 8 weight% of a coupling agent and 50 weight% of magnesium hydroxide (Mg (OH) ₂ ) as a flame retardant are added to the blended formulation to which a heat stabilizer and an antioxidant are added. The coupling agent and magnesium hydroxide are put into the kneading apparatus, and the temperature of the kneading apparatus is 170 占 폚 and the rotor is rotated at 80 rpm for 10 minutes during mixing. Then, 0.5% by weight of a lubricant and 0.5% by weight of a cross-linking agent are added to the compounded mixture containing a coupling agent and magnesium hydroxide. The lubricant and crosslinking agent are added to the kneading equipment and the rotor is rotated for 20 minutes while mixing with the temperature and the rotation speed of the rotor to form a TOE flame retardant resin composition.

Example 2

26% by weight of a polyolefin resin was charged based on 100% by weight of the entire TOE flame retardant resin composition while the rotor installed in the kneading apparatus was rotated, and polypropylene (polypropylene) 55% by weight of a resin, and 45% by weight of a high density polyethylene (HDPE) resin. Add 7% by weight of TOE (Thermoplastic Olefin Elastomer) and mix. Polypropylene, high-density polyethylene and TOE are put into the kneading equipment, and the blend is added while rotating the rotor at 20 rpm for 7 minutes. Then, 6 parts by weight of a heat stabilizer and 6 parts by weight of an antioxidant are added to the compounded mixture put into the kneading equipment and mixed. The heat stabilizer and the antioxidant are added to the kneading equipment, and the kneading equipment is sealed when mixing. The rotor is rotated at 20 rpm for 7 minutes to centrifuge the solid so that the solid sinks. Next, 8 weight% of a coupling agent and 46 weight% of magnesium hydroxide (Mg (OH) ₂ ) as a flame retardant are added to the blended formulation to which a heat stabilizer and an antioxidant are added. The coupling agent and magnesium hydroxide are put into the kneading apparatus, and the temperature of the kneading apparatus is 170 占 폚 and the rotor is rotated at 80 rpm for 10 minutes during mixing. Then, 0.5% by weight of a lubricant and 0.5% by weight of a cross-linking agent are added to the compounded mixture containing a coupling agent and magnesium hydroxide. The lubricant and crosslinking agent are added to the kneading equipment and the rotor is rotated for 20 minutes while mixing with the temperature and the rotation speed of the rotor to form a TOE flame retardant resin composition.

Example 3

26% by weight of a polyolefin resin was charged based on 100% by weight of the entire TOE flame retardant resin composition while the rotor installed in the kneading apparatus was rotated, and polypropylene (polypropylene) 55% by weight of a resin, and 45% by weight of a high density polyethylene (HDPE) resin. Add 5 wt% of TOE (Thermoplastic Olefin Elastomer) and mix. Polypropylene, high-density polyethylene and TOE are put into the kneading equipment, and the blend is added while rotating the rotor at 20 rpm for 7 minutes. Then, 6 parts by weight of a heat stabilizer and 6 parts by weight of an antioxidant are added to the compounded mixture put into the kneading equipment and mixed. The heat stabilizer and the antioxidant are added to the kneading equipment, and the kneading equipment is sealed when mixing. The rotor is rotated at 20 rpm for 7 minutes to centrifuge the solid so that the solid sinks. Next, 8 weight% of a coupling agent and 48 weight% of magnesium hydroxide (Mg (OH) ₂ ) as a flame retardant are added to the blended formulation to which a heat stabilizer and an antioxidant are added. The coupling agent and magnesium hydroxide are put into the kneading apparatus, and the temperature of the kneading apparatus is 170 占 폚 and the rotor is rotated at 80 rpm for 10 minutes during mixing. Then, 0.5% by weight of a lubricant and 0.5% by weight of a cross-linking agent are added to the compounded mixture containing a coupling agent and magnesium hydroxide. The lubricant and crosslinking agent are added to the kneading equipment and the rotor is rotated for 20 minutes while mixing with the temperature and the rotation speed of the rotor to form a TOE flame retardant resin composition.

Comparative Example 1

Example 3 was repeated except that antimony trioxide (Sb ₂ O ₃ ) was used instead of magnesium hydroxide (Mg (OH) ₂ ) as the flame retardant in Example 3 and TOE, lubricant and crosslinking agent were not used.

[Experimental Example 1]

Table 1 below shows the results of electrical characteristics obtained in Examples 1 to 3 and Comparative Example 1. [

Withstand voltage result Spark Underwater Example 1 5,000Volt / 0.15sec or more 1,000 Volts / 60 sec Endure Endure Example 2 5,000Volt / 0.15sec or more 1,000 Volts / 60 sec Endure Endure Example 3 5,000Volt / 0.15sec or more 1,000 Volts / 60 sec Endure Endure Comparative Example 1 5,000Volt / 0.15sec or more 1,000 Volts / 60 sec Ignition Endure

Examples 1 to 3 withstood a spark of 5,000 volts for more than 0.15 seconds and survived 60 seconds at 1,000 volts in water while Comparative Example 1 was able to withstand 5,000 volts Volt) sparked at 0.15 second (sec) or higher.

[Experimental Example 2]

The results of the physical properties obtained in Examples 1 to 3 and Comparative Example 1 are shown in Table 2 below.

Oil resistance (60 impregnation / 360 min) Heat resistance (after 135 / 360min, 1,000Volt / 60sec) Cold resistance (-40 / 360min after 1,000Volt / 60sec) Flame retardancy (flame is added for 10 seconds, it is extinguished within 30 seconds after removal) Example 1 91.7% Endure Endure digestion Example 2 91.85% Endure Endure digestion Example 3 92% Endure Endure digestion Comparative Example 1 88% transform Destruction digestion

In Examples 1 to 3, it can be seen that the oil resistance is 90% or more, the heat resistance at 135 ° C is high and the heat resistance is strong, the low temperature resistance is not broken at -40 ° C and the cold resistance is excellent, 1 shows that the oil resistance is less than 90% and that thermal deformation occurs at a high temperature, and at the same time, it is broken and broken at an extremely low temperature.

[Experimental Example 3]

The results of the mechanical properties obtained in Examples 1 to 3 and Comparative Example 1 are shown in Table 3 below.

The tensile strength Elongation rate Abrasion resistance 1 (Sandpaper) Abrasion resistance 2 (more than 100 times / 2mm piano cable) Example 1 1.74 kgf / mm ² 184.5% 317mm 316mm Example 2 1.72 kgf / mm ² 186.3% 324 mm 313mm Example 3 1.76 kgf / mm ² 187% 327mm 317mm Comparative Example 1 1.05kgf / mm ² 150% 250mm 245mm

In Examples 1 to 3, it was found that the tensile strength was 1.7 kgf / cm ² or more, the elongation was 180% or more, and the abrasion resistance by sandpaper and piano cable was 300 mm or more, , The tensile strength is 1.00 gf / cm ² , the elongation is 148%, and the abrasion resistance by sandpaper and cable is 247 mm and 245 mm.

As described above, by injecting the TOE into the polypropylene resin and the high-density polyethylene resin and blending them, adding magnesium hydroxide as an inorganic flame retardant, and adding additives to produce a TOE flame retardant resin composition, It is resistant to destruction and thermal deformation due to temperature and is applied to insulation materials required for wire, power line, communication line and cable manufacturing. In addition, it is applied to automobile wire material, artificial leather and filler material And can be used as a wire material for ships requiring vibration and durability.

In other words, it eliminates environmentally harmful substances such as harmful heavy metals and harmful substances, and is non-toxic, thereby preventing environmental pollution. Also, it is harmless to human body and is excellent in flame retardant characteristic, The mechanical properties such as durability and abrasion resistance are improved, the scratch resistance and the vibration resistance are excellent, and the fracture and thermal deformation at a cryogenic temperature of -40 ° C and extreme high temperature of + 135 ° C are prevented , Insulation material required for wire and cable manufacturing, Polyvinyl Chloride Compound for jacket, Power cable for electric wire material, factory and house power supply It can be applied to wire materials and communication lines. It can be applied to automobile wire materials, automobile interior materials such as artificial leather and fillers, vibration and durability It can be used as required wire material for ships.

In one embodiment of the present invention, the TOE flame retardant resin composition was used as a flame retardant material for the polyolefin resin, but the flame retardant resin composition for TPE (Thermo Plastic Elastomer), TPU (Thermoplastic Polyurethane) (Thermo Plastic Olefin) and TPEE (Thermoplastic Polyether Ester Elastomer) as flame retardant materials to ensure flame retardancy.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. It will be easy for anyone to know.

Claims (11)

A polyolefin resin;
TOE (Thermoplastic Olefin Elastomer);
Magnesium hydroxide (Mg (OH) ₂ );
Thermal stabilizers;
Antioxidants;
Coupling agents;
Lubricant; And
A crosslinking agent;
, 24% to 28% by weight of a polyolefin resin, 3% to 7% by weight of a TOE (Thermoplastic Olefin Elastomer), magnesium hydroxide (Mg (OH) ) ₂ ) 46% to 50% by weight of heat stabilizer, 4% to 8% by weight of heat stabilizer, 4% to 8% by weight of antioxidant, 6% to 10% Wherein the tensile strength is from 1.72 kgf / mm ² to 1.76 kgf / mm ² , the elongation is from 184.5% to 187%, and the abrasion resistance is from 317 mm to 327 mm. Composition.
delete The method according to claim 1,
Wherein the polyolefin resin is at least one selected from the group consisting of polypropylene (PP), high density polyethylene (HDPE), and low density polyethylene (LDPE). Composition.
The method of claim 3,
The polyolefin resin is characterized by containing 52 to 55% by weight of polypropylene resin and 45 to 48% by weight of high density polyethylene (HDPE) resin based on 100% by weight of the total polyolefin resin. The TOE flame retardant resin composition.
Adding polyolefin resin and TOE (Thermoplastic Olefin Elastomer) into the kneading equipment and mixing them;
Adding a heat stabilizer and an antioxidant to the combination and mixing the mixture;
Adding magnesium hydroxide (Mg (OH) ₂ ) and a coupling agent to the formulation to form a mixture; And
Adding a lubricant and a cross-linking agent to the mixture to form a mixture;
, 24% to 28% by weight of a polyolefin resin, 3% to 7% by weight of a TOE (Thermoplastic Olefin Elastomer), 3% to 7% by weight of a magnesium hydroxide (Mg (OH) ₂ ) 46 to 50 wt%, heat stabilizer 4 to 8 wt%, antioxidant 4 to 8 wt%, coupling agent 6 to 10 wt%, lubricant 0.3 to 0.7 wt% % and a cross-linking agent and 0.3% to 0.7% by weight, and a tensile strength of 1.72kgf / mm ² to 1.76kgf / mm ^2, the elongation is 184.5% to 187%, TOE-retardant, characterized in that the wear resistance is formed of a 317mm to 327mm A method for producing a resin composition.
delete The method of claim 5,
Wherein the polyolefin resin is at least one selected from the group consisting of polypropylene (PP), high density polyethylene (HDPE), and low density polyethylene (LDPE). ≪ / RTI >
The method of claim 5,
The polyolefin resin is characterized by containing 52 to 55% by weight of polypropylene resin and 45 to 48% by weight of high density polyethylene (HDPE) resin based on 100% by weight of the total polyolefin resin. Of the TOE flame retardant resin composition.
The method of claim 5,
Wherein the rotor in the kneading apparatus is rotated and operated for 15 minutes to 25 rpm for 5 minutes to 10 minutes when the polyolefin resin and the thermoplastic olefin elastomer (TOE) are charged.
The method of claim 5,
Wherein the kneading equipment is sealed when the heat stabilizer and the antioxidant are put in the container, and the rotor is rotated at 15 rpm to 25 rpm for 5 minutes to 10 minutes to form a mixture, and the mixture is centrifuged so that the solid is submerged. Way.
The method of claim 5,
Wherein the temperature of the kneading facility is 160 占 폚 to 180 占 폚 and the rotor is rotated at 60 rpm to 100 rpm for 7 minutes to 13 minutes during the charging of the magnesium hydroxide and the coupling agent to prepare the TOE flame retardant resin composition .