KR101115679B1 - Environmental polyvinyl chloride resin composition - Google Patents

Abstract

The present invention relates to an environmentally friendly vinyl chloride-based resin composition, more specifically, a vinyl chloride-based resin, a plasticizer containing a terephthalic acid ester compound represented by the following Formula 1, calcium-zinc (Ca-Zn) -based stabilizer, and trioxide It comprises a flame retardant selectively comprises antimony (Sb ₂ O ₃ ), and relates to an environmentally friendly vinyl chloride resin composition, particularly applied to PVC coated yarn (yarn). The vinyl chloride-based resin according to the present invention is improved in the amount of extrusion, heat resistance, whiteness and flame retardancy, which are important properties of the PVC coated yarn compound, and also has eco-friendliness without environmental hormones and harmful heavy metals. In addition, the flame retardant of the present invention further includes aluminum hydroxide (ATH) or magnesium hydroxide (Mg (OH) 2), thereby obtaining flame retardant properties in addition to flame retardancy.

[Formula 1]

In the above formula, R ₁ is an alkyl group having 4 to 12 carbon atoms.

Vinyl chloride resin (PVC), plasticizer, terephthalic acid ester, stabilizer, Ca-Zn, flame retardant, antimony trioxide, aluminum hydroxide, magnesium hydroxide, heat resistance, flame retardant and flame retardant

Description

Eco-friendly vinyl chloride resin composition {ENVIRONMENTAL POLYVINYL CHLORIDE RESIN COMPOSITION}

The present invention relates to an environmentally friendly vinyl chloride-based resin composition, and more particularly to a vinyl chloride-based resin composition having excellent extrusion amount, heat resistance, whiteness and flame retardancy and environmentally friendly that can be used in PVC coated yarn (yarn).

The vinyl chloride resin is a hybrid polymer containing at least 50% of a vinyl chloride homopolymer and vinyl chloride, and is one of five general-purpose thermoplastic resins produced by suspension polymerization and emulsion polymerization. The vinyl chloride-based resin is molded by various processing methods such as compound extrusion molding, injection molding, calendering, sol molding, and the like, such as pipes, building interior and exterior materials, electric wires, electric machine products, toys, films, sheets, artificial leather, tapes, It is widely used as a material for various products ranging from food packaging materials to medical supplies.

Various processing properties can be imparted to such vinyl chloride resins by appropriately adding various additives such as plasticizers, secondary plasticizers, stabilizers, pigments, fillers, flame retardants, lubricants.

Plasticizers are additives that play a role of improving the processability by reducing the friction coefficient between polymer resins. The types of plasticizers used up to now are very diverse and have different uses. Plasticizers used in vinyl chloride resins are mainly phthalate plasticizers, in particular di-2-ethylhexyl phthalate (DEHP), di-butyl phthalate (DBP), di-isodecyl phthalate (DIDP) and butyl benzyl phthalate (BBP) , Di-isononyl phthalate (DINP), di-n-octyl phthalate (DNOP) and the like are most widely used. In particular, diethylhexyl phthalate (DEHP) is widely used because it has a good balance of physical properties such as plasticization efficiency and workability.

However, phthalate-based plasticizers are suspected to be endocrine disruptors, or environmental hormones, which interfere with or disrupt the action of hormones in animals or humans. Of these, diethylhexyl phthalate (DEHP) is a particularly dangerous substance. As a result, it is being regulated and a substitute material is required. In addition, DEHP has a low molecular weight and poor heat resistance, which can be easily transformed by heat, causing a demand for alternative materials. In addition to DEHP, other phthalate plasticizers are also available in Cat. Classified as 2-3, there is a continuous debate about risk.

country Chemical Hazardous Substances Item Classification EU DOP, DBP, BBP Reproductive Toxicity Cat.2 R60 ~ 61 DINP, DNOP, DIDP Reproductive Toxicity Cat.3 R60 ~ 61 Japan DEHP, BBP, DBP, DOA Endocrine disruption Disability and putative substances WWF DOP, DBP, BBP Endocrine disruption Obstacle

1) Toxicity Class: Cat. 1 Toxicological Check, Cat. 2 Animal testing confirmed, Cat. 3 putative substances

2) R60 ~ 61: impaired fertility

Meanwhile, PVC-coated yarns made of vinyl chloride-based resins are classified into embroidery, sunscreen, and beatch, but the raw materials used are almost similarly used. PVC coated yarns have been mainly used until now mostly phthalate plasticizers such as di-2-ethylhexyl phthalate (DEHP), di-isodecyl phthalate (DIDP), di-isononyl phthalate (DINP) and the like. Phthalate plasticizers, however, have excellent physical properties but have adverse environmental effects and are toxic to humans.

Therefore, there is a need to develop a plasticizer for replacing phthalates for vinyl chloride-based resins for environmentally friendly PVC coated yarns. However, the development of a new plasticizer for a polymer suitable for general purpose or a specific use should not only be excellent in the properties of the plasticizer itself, but also excellent in coherence with the target polymer resin, and also excellent in compatibility with various additives. Difficulties come because you have to.

On the other hand, in the vinyl chloride-based resin composition, it is common to use a stabilizer together in order to prevent deterioration of the resin and the plasticizer due to heat, light, oxygen in the air, or the like under the use environment. As such stabilizers, stearic acid salts such as tribasic lead lactate, cadmium, barium, dibutyl tin (tin) compounds, and the like, which are conventional metal stabilizers, are frequently used. These metal compounds have some degree of toxicity or contamination to humans and the environment, and recently, calcium stearate, a complex stearic acid salt of calcium and zinc (Ca-Zn type), or a complex carbonate of aluminum and magnesium (so-called hardrotal yarn) And many stabilizers have been proposed.

In addition, in the case of PVC-coated yarn (yarn) is widely used for indoor use, flame retardancy is required, and recently, in addition to flame retardancy, flame retardant properties such as how much smoke is emitted when burned are required.

In order to solve the problems of the prior art as described above, an object of the present invention is to provide a vinyl chloride-based resin composition having environmental friendliness, heat resistance, flame retardancy and flame retardant.

In addition, an object of the present invention is to provide a PVC-coated yarn (yarn) to which the environmentally friendly vinyl chloride resin composition according to the present invention is applied.

These and other objects of the present invention can be achieved by the present invention described below.

In order to achieve the above object,

100 parts by weight of vinyl chloride resin;

5 to 100 parts by weight of a plasticizer including a terephthalic acid ester compound represented by Formula 1 below;

1 to 10 parts by weight of a calcium-zinc (Ca-Zn) -based stabilizer; And

1 to 10 parts by weight of a flame retardant optionally including antimony trioxide (Sb ₂ O ₃ );

It provides an environmentally friendly vinyl chloride-based resin composition comprising a.

Also,

100 parts by weight of vinyl chloride resin;

5 to 100 parts by weight of a plasticizer including a terephthalic acid ester compound represented by Formula 1 below;

1 to 10 parts by weight of a calcium-zinc (Ca-Zn) -based stabilizer; And

1 to 10 parts by weight of a flame retardant optionally including antimony trioxide (Sb ₂ O ₃ );

It provides a PVC-coated yarn (yarn) to which the environmentally friendly vinyl chloride-based resin composition comprising a.

[Formula 1]

In the above formula, R ₁ is an alkyl group having 4 to 12 carbon atoms.

The vinyl chloride-based resin according to the present invention is improved in extrusion amount, heat resistance, whiteness and flame retardancy, and can be obtained flame retardant in addition to flame retardancy, and also has an effect of obtaining environmental friendliness without environmental hormones and harmful heavy metals.

Hereinafter, the present invention will be described in detail.

Eco-friendly vinyl chloride-based resin composition of the present invention is 100 parts by weight of vinyl chloride-based resin, 5 to 100 parts by weight of a plasticizer containing a terephthalic acid ester compound represented by the following formula (1), calcium-zinc (Ca-Zn) -based stabilizer 1 to 10 parts by weight, and 1 to 10 parts by weight of a flame retardant optionally including antimony trioxide (Sb ₂ O ₃ ).

[Formula 1]

In the above formula, R ₁ is an alkyl group having 4 to 12 carbon atoms.

The vinyl chloride resin used in the present invention refers to a homopolymer of vinyl chloride and a hybrid polymer containing 50% or more of vinyl chloride.

The plasticizer used in the present invention comprises a terephthalic ester compound represented by the following formula (1).

[Formula 1]

In the formula, R ₁ represents an alkyl group having 4 to 12 carbon atoms.

Specifically as a preferred terephthalic acid ester compound corresponding to the formula (1),

Viii) 1,4-benzenedicarboxylic acid bis (2-ethylhexyl) ester (called dioctyl terephthalate, DOTP), C ₈ H ₁₇ OCOC ₆ H ₄ CO ₂ C ₈ H ₁₇ ; And

Ii) 1,4-benzenedicarboxylic acid bis (C8-C10 molecular alkyl) ester (referred to diisononylterephthalate, DINTP), C ₉ H ₁₉ OCOC ₆ H ₄ CO ₂ C ₉ H ₁₉ .

Herein, the C8-C10 molecular alkyl group means mainly C9 alkyl group and contains small amount of C8 alkyl group and C10 alkyl group, especially C8 alkyl group. Such alkyl groups can be derived from isononyl alcohol, industrially isononyl alcohol is not a pure C9 alcohol, but a mixture of several C9 alcohols and also a small mixture of C8 alcohol and C10 alcohol, in particular C8 alcohol, for example fermentation. C9 alcohol fraction, derived from the product. Thus, the isononylalcohol referred to herein can be understood as such a C9 alcohol fraction, and the C9 alkyl group can also be understood to be derived from such isononylalcohol.

Briefly, a method for preparing the terephthalic acid ester compound according to the present invention, in particular dioctyl terephthalate (DOTP) and diisononyl terephthalate (DINTP), will be briefly introduced. In this case, since the manufacturing method of the DOTP and DINTP is almost similar, only the DOTP manufacturing method is introduced here.

In the above production method, a production method by an esterification reaction using terephthalic acid, terephthalic acid and 2-ethyl hexanol as raw materials, and terephthalic acid dimethyl terephthalate ) And a production method by a transesterification reaction using 2-ethyl hexanol, or a polyester resin such as polyethylene terephthalate or polybutylene terephthalate; There exists a manufacturing method by degradative transesterification using 2-ethyl hexanol as a raw material.

In the preparation of the dioctyl terephthalate (DOTP) it is possible to use a catalyst to promote the reaction, which depends on the reaction temperature. In general, the reaction is carried out at 130 ℃ ~ 280 ℃, various catalysts are used to suit the appropriate temperature. For example, tetra-isobutyl titanate (TIBT), tetra-isopropyl titanate (TIPT), dibutyl tin oxide, para-toluenesulfonic acid (para-toulene sulfonic acid) acid, PTSA) and the like may optionally be used. Particularly preferred is paratoluenesulfonic acid or tetraisopropyl titanate, but is not limited thereto.

The post-treatment after completion of the esterification reaction is not particularly limited, but the excess raw material may be removed by a method such as vacuum distillation and neutralized with a basic solution such as NaOH, KOH, Na ₂ CO ₃ aqueous solution, or the like. . The resultant can then be washed with water, optionally dried under reduced pressure and dehydrated, and then the adsorbent is added and filtered to obtain the final plasticizer.

The plasticizer according to the present invention may consist only of the terephthalic acid ester compound or may be made together with other plasticizer compounds. Preferably, the terephthalic ester compound, dioctyl terephthalate (DOTP), diisononyl terephthalate (DINTP), or a combination thereof may be used.

The plasticizer is contained in 5 to 100 parts by weight based on 100 parts by weight of the vinyl chloride resin in the vinyl chloride resin composition of the present invention. Preferably it is included 10 to 70 parts by weight. If the content is less than 5 parts by weight, there is a problem of insufficient flexibility and poor elongation characteristics of the composition, and if the content is more than 100 parts by weight, bleeding effect (a phenomenon in which the plasticizer comes out to the surface of the molded part) is likely to occur. Sticky or dirty contaminants tend to adhere.

The stabilizer used in the present invention uses a calcium-zinc-based (Ca-Zn-based) stabilizer such as calcium stearate complex stearic acid salt. Problems such as toxicity or contamination due to harmful heavy metals, such as stearic acid salts such as lead tribasic lactate, cadmium and barium, and dibutyl tin compounds, which are mainly used as stabilizers in the past, can be solved. The stabilizer according to the present invention exhibits superior effects to the conventional stabilizer in terms of compatibility and environmentally friendly properties with the vinyl chloride resin and the plasticizer used in the present invention.

The stabilizer is contained in 1 to 10 parts by weight based on 100 parts by weight of the vinyl chloride-based resin in the vinyl chloride-based resin composition of the present invention. Preferably it is included 2 to 7 parts by weight. If the content is less than 1 part by weight, there is a problem in that the thermal stability is lowered. If the content is more than 10 parts by weight, there is a problem that more than necessary heat stability is expressed and the cost increases.

The flame retardant used in the present invention improves the flame retardancy of the vinyl chloride-based resin composition by containing antimony trioxide (Sb ₂ O ₃ ). In addition, the flame retardant is characterized in that it further comprises aluminum hydroxide (ATH) or magnesium hydroxide for the required flame retardant properties. That is, by using together antimony trioxide (Sb ₂ O ₃ ) and aluminum hydroxide (ATH) or magnesium hydroxide it can be obtained at the same time excellent flame retardancy and flame retardant effect. Further, even when aluminum hydroxide (ATH) or magnesium hydroxide is used alone without using antimony trioxide (Sb ₂ O ₃ ) together, some flame retardant properties and flame retardant effects can be simultaneously obtained.

The flame retardant is included in 1 to 10 parts by weight based on 100 parts by weight of the vinyl chloride-based resin in the vinyl chloride-based resin composition of the present invention. Preferably it is included 2 to 8 parts by weight. If the content is less than 1 part by weight, there is a problem that the flame retardant properties are lowered, if the content is more than 10 parts by weight, the flame retardant properties are good, but other properties such as heat resistance and the like, there is a problem that the economical efficiency is lowered.

The vinyl chloride-based resin composition of the present invention may further add a filler, which may improve the productivity, cost, dry feeling of the composition, and the like. Such fillers may be calcium carbonate, clay, talc or diatomaceous earth.

The filler is included in 5 to 70 parts by weight, preferably 10 to 50 parts by weight with respect to 100 parts by weight of the vinyl chloride-based resin in the vinyl chloride-based resin composition of the present invention. If the content is less than 5 parts by weight, there is a problem that the dimensional stability and economic efficiency is lowered, if the content exceeds 70 parts by weight there is a problem that workability and durability is reduced.

In addition, the vinyl chloride-based resin composition of the present invention is fat (TiO ₂ ) per 100 parts by weight of vinyl chloride-based resin By including 1 to 10 parts by weight, the whiteness and weather resistance of the vinyl chloride resin composition can be improved. If the content is less than 1 part by weight, it is difficult to secure desired physical properties due to poor whiteness and weather resistance, and if it exceeds 10 parts by weight, surface defects due to poor compatibility with other additives and deterioration of final physical properties (elongation) and economic efficiency are deteriorated. There is this.

The method for preparing the composition by adding the above components according to the present invention is not particularly limited and may be prepared by methods well known in the art.

The vinyl chloride-based resin composition of the present invention as described above is particularly made of a PVC coated yarn (yarn), thereby having excellent extrudability, heat resistance, whiteness and flame retardancy. It can be easily understood that a conventional method can be applied to producing a PVC coated yarn from the vinyl chloride resin composition of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the scope of the present invention is not limited to the following examples.

[Manufacturing Example]

<Production of Plasticizer Composition>

249.21 g of terephthalic acid, 781.38 g of 2-ethyl hexanol and 1.00 g of TIPT as a catalyst were added to a four-necked 2L round flask equipped with a stirrer and a condenser, and heated up to 220 ° C. while stirring under a nitrogen atmosphere. The reaction proceeded for a time.

After the reaction, unreacted terephthalic acid and excess 2-ethyl hexanol were removed under reduced pressure using a vacuum pump at 150-220 ° C, and neutralized water washing process was performed using 10 wt% sodium hydroxide solution and 10 wt% forget-me-not solution. After sequentially carrying out dehydration under reduced pressure, the adsorbent was added to the reaction product from which water was removed, filtered through a filter medium, and finally, DOTP having a purity of 99.7% was obtained.

DINTP is identical in the preparation of DOTP with the same terephthalic acid except that isononylalcohol is used instead of 2-ethyl hexanol.

[Example]

Example  One

100 parts by weight of polyvinyl chloride resin, 41 parts by weight of plasticizer DOTP, 7 parts by weight of Ca-Zn-based stabilizer, 20 parts by weight of filler, 5 parts by weight of flame retardant Sb ₂ O ₃ , 3 parts by weight of TiO ₂ using 110L small mixer After mixing for 13 minutes at 8 inches in diameter test roll (kneaded) at 165 ℃ for 3 minutes to prepare a sheet (sheet) with a thickness of 1 mm or more. The sheet is preheated to 60 kgf / cm ³ for 3 minutes in a press, then pressurized to 200 kgf / cm ³ for 3 minutes. It was then cooled to 50 ° C. or lower to obtain a sheet of final 1 mm thickness. Tensile strength, elongation and whiteness were evaluated with this specimen. Another evaluation item, heat resistance, was kneaded at 165 ° C. for 3 minutes in a test roll of 8 inches in diameter using the above formulation to produce a 0.2 mm sheet. This sheet was used to measure the time (Min) to start color discoloration using a Mathis oven set at 210 ℃. Extrusion amount was measured using a single extruder using the above compound in an extrusion zone of 160 ° C., 155 ° C., 160 ° C. and 160 ° C. die temperature. Table 2 shows.

Example  2

Except that 100 parts by weight of polyvinyl chloride resin, 41 parts by weight of plasticizer DINTP in Example 1 was prepared in the same manner as in Example 1, and the physical properties are shown in Table 2 below.

Comparative example  One

Except that 100 parts by weight of polyvinyl chloride resin, 41 parts by weight of a plasticizer using a 5 to 5 mixing ratio of Di-isononyl phthalate (DINP) and Di-isodecyl phthalate (DIDP) in Example 1 was the same as The physical properties of the compounds are shown in Table 2 below.

Comparative example  2

Except that 100 parts by weight of polyvinyl chloride resin, 41 parts by weight of a plasticizer DI-isodecyl phthalate (DIDP) in Example 1 was prepared in the same manner as in Example 1, the physical properties are shown in Table 2 below.

Comparative example  3

Except for using 100 parts by weight of polyvinyl chloride resin, 41 parts by weight of the plasticizer DOTP, 5 parts by weight of dibasic lead phosphate (DLP) Pb-based stabilizer was prepared in the same manner as in Example 1, each of the physical properties It is shown in Table 2 below.

Comparative example  4

100 parts by weight of polyvinyl chloride resin in Example 1, except that 41 parts by weight of a plasticizer DINP (Di-isononyl phthalate) was prepared in the same manner as in Example 1, and the physical properties are shown in Table 2 below.

[Table 1]

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Polyvinyl chloride 100 100 100 100 100 100 Plasticizer DOTP 41 - - - - - DINTP - 41 - - - - DINP - - 20.5 - - 41 DIDP - - 20.5 41 41 - stabilizator Ca-Zn system 7 7 7 7 - 7 DLP - - - - 5 Filler 20 20 20 20 20 20

[Test Example]

Tensile strength, elongation, whiteness, heating loss and extrusion amount of the specimens prepared using the vinyl chloride resin compositions obtained in Examples 1 to 2 and Comparative Examples 1 to 4 were evaluated in the following manner, and each result was as follows. Table 2 shows. At this time, the thickness of the specimen at room temperature should be careful not to deviate by ± 0.2 mm, and the temperature of oven and extruder should not be deviated by ± 1 ℃.

The tensile strength

Tensile strength was measured by pulling the cross head speed to 200 mm / min using a test instrument UTM (manufacturer; Instron, Model Name; 4466) by the ASTM D638 method. (kgf / mm 2) = Load value (kgf) / thickness (mm) x width (mm) was calculated.

Elongation

According to ASTM D638 method, after pulling the crosshead speed to 200 mm / min using the UTM, measuring the point where the specimen is cut, elongation (%) = length after elongation / initial length × Calculated as 100.

Heat resistance

Using a 0.2 mm specimen prepared in Example 1, using a Mathis oven, the temperature was set at 210 ° C., and then the specimens were gradually released from the oven by 20 mm per 2 minutes to change the color of the specimen. The heat resistance was measured and compared.

Whiteness

Using a 1 mm specimen prepared in Example 1, whiteness was measured at room temperature using a Haze meter (manufacturer; Tokyo Denshoku, model name; TC-H3DPK).

Extrusion amount

Extrusion was carried out using a single extruder (manufacturer; Coperion Buss) in Example 1 at 160 ° C, 155 ° C, 160 ° C extrusion zones and 160 ° C die temperature, and the extrusion amount was stabilized after a certain time. After the extruded amount for each 5 minutes was taken and weighed, the extrusion amount was evaluated by the average value through two iterations.

Flammability

Using the 1mm specimen prepared in Example 1, the specimen was installed vertically, and then the cotton was placed thereon, and the flame was applied for 10 seconds until the fire attached to the specimen was extinguished and the cargo dropped down during combustion. NBS Smoke Box (ASTM E-662), a method of measuring the density of smoke (Smoke Density (%)) during combustion, which is a method of measuring the flame of fire, and a method of measuring flame resistance. Branches were carried out.

Hazardous Heavy Metal Content

A sample extruded using a single extruder (manufacturer; Aglient, model name; 7500) in Example 1 was measured using ICP-MASS to determine the content of harmful heavy metals Pb, Cd, Cr, Hg.

Phthalate  content

The phthalate content was measured using GC-MASS with a sample extruded using a single extruder (manufacturer; Aglient, model name; 5975i) in Example 1 above.

TABLE 2

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Tensile Strength (Kg / mm ² ) 2.01 2.03 1.99 2.02 2.02 1.95 % Elongation 307 305 298 295 310 300 Heat resistance (Min) 23 24 18 19 25 17 Whiteness 77 78 75 76 78 74 Extrusion amount (g / min) 143 141 137 135 145 139 Hazardous Heavy Metal Content Free Free Free Free detection Free Phthalate content Free Free detection detection Free detection

Through Table 2, Examples 1 and 2 using the plasticizer according to the present invention can be confirmed that the heat resistance, whiteness and extrusion amount is excellent compared to Comparative Examples 1, 2 and 4 that are not, and is a problem as an environmental hormone It can be seen that no phthalate is detected at all.

In addition, Examples 1 and 2 using the stabilizer according to the present invention can be confirmed that no harmful heavy metals are detected in comparison with Comparative Example 3.

Example  3

Except for using 1 part by weight of Ca-Zn-based stabilizer in Example 1 was prepared in the same manner as in Example 1, each of the physical properties are shown in Table 4 below.

Example  4

Except for using 10 parts by weight of Ca-Zn-based stabilizer in Example 1 was prepared in the same manner as in Example 1, each of the physical properties are shown in Table 4 below.

Example  5

Except for using 5 parts by weight of the filler in Example 1 was prepared in the same manner as in Example 1, each of the physical properties are shown in Table 4 below.

Comparative example  5

Except that 100 parts by weight of the filler in Example 1 was prepared in the same manner as in Example 1, each of the physical properties are shown in Table 4 below.

[Table 3]

Example 1 Example 3 Example 4 Example 5 Comparative Example 5 Polyvinyl chloride 100 100 100 100 100 Plasticizer DOTP 41 41 41 41 41 Ca-Zn Type Stabilizer 7 One 10 7 7 CaCO ₃ 20 20 20 5 100 TiO ₂ 3 3 3 3 3 Sb ₂ O ₃ 5 5 5 5 5

[Table 4]

Example 1 Example 3 Example 4 Example 5 Comparative Example 5 Tensile Strength (Kg / mm ² ) 2.01 2.13 2.02 1.78 2.41 % Elongation 307 285 305 320 190 Heat resistance (Min) 23 12 25 18 25 Whiteness 77 65 77 68 75 Extrusion amount (g / min) 143 138 120 150 110

Through Table 4, Example 3, which lowers the stabilizer content in Example 1 is relatively lower in heat resistance compared to Example 1, Example 4 in which the stabilizer content is increased can be confirmed that the extrusion amount is relatively reduced, There was a problem in the application of the cost greatly increased.

In addition, Example 5 having a lower filler content than Example 1 may be confirmed that the heat resistance and tensile strength is relatively lower than that of Example 1, Comparative Example 5 in which the content is outside the scope of the present invention is Example 1 Compared with the elongation and extrusion amount is greatly reduced there was a problem in the application.

Example  6

Except for using 2.5 parts by weight of flame retardant Sb ₂ O _{3 and} 2.5 parts by weight of aluminum hydroxide (ATH) in Example 1 was prepared in the same manner as in Example 1, each of the physical properties are shown in Table 6.

Example  7

Except for using the flame retardant Sb ₂ O ₃ 2.5 parts by weight and 2.5 parts by weight of magnesium hydroxide in Example 1 was prepared in the same manner as in Example 1, the physical properties are shown in Table 6 below.

Example  8

Except for using 5 parts by weight of flame retardant aluminum hydroxide (ATH) in Example 1 was prepared in the same manner as in Example 1, each of the physical properties are shown in Table 6 below.

TABLE 5

Example 1 Example 6 Example 7 Example 8 Polyvinyl chloride 100 100 100 100 DOTP 41 41 41 41 Ca-Zn Stabilizer 7 7 7 7 CaCO ₃ 20 20 20 20 TiO ₂ 3 3 3 3 Sb ₂ O ₃ 5 2.5 2.5 - Aluminum hydroxide (ATH) - 2.5 - 5 Magnesium Hydroxide (Mg (OH) ₂) - - 2.5 -

TABLE 6

Example 1 Example 6 Example 7 Example 8 Tensile Strength (Kg / mm ² ) 2.01 2.02 2.01 1.94 % Elongation 307 310 295 280 Heat resistance (Min) 23 22 21 19 Whiteness 77 76 75 72 Flammability Smoke Density (%) 100% 75% 75% 50% UL 94V
(Flame retardant test) V0 V0 V0 V1 Extrusion amount (g / min) 143 142 138 135

Through Table 6, Examples 6 and 7 using a mixture of Sb ₂ O ₃ and aluminum hydroxide (ATH) or magnesium hydroxide in accordance with the present invention shows excellent flame retardancy and does not significantly reduce other physical properties, Sb ₂ O ₃ alone As compared with Example 1 used, it was confirmed that the flame retardant effect was further obtained.

In addition, Example 8 using only aluminum hydroxide (ATH) alone is excellent in flame retardant effect, but has a disadvantage in somewhat flame retardancy and other physical properties, but may be used alone in the case of a suitable stabilizer system and strengthening flame retardant regulation. .

Although described in detail above with reference to the specific embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made within the scope and spirit of the present invention, and such modifications and modifications belong to the appended claims. It is also natural.

Claims (12)

100 parts by weight of vinyl chloride resin; 5 to 100 parts by weight of a plasticizer including a terephthalic acid ester compound represented by Formula 1 below; 2 to 7 parts by weight of a calcium-zinc (Ca-Zn) -based stabilizer; Antimony trioxide (Sb ₂ O ₃ ) flame retardant, and 1 to 10 parts by weight of aluminum hydroxide (ATH) or magnesium hydroxide (Mg (OH) ₂ ) flame retardant; And 1 to 10 parts by weight of fat (TiO ₂ ); comprising Eco-friendly vinyl chloride resin composition. [Formula 1]

In the above formula, R ₁ is an alkyl group having 4 to 12 carbon atoms. The method of claim 1, The terephthalic acid ester compound is dioctyl terephthalate (DOTP) or diisononyl terephthalate (DINTP), characterized in that Eco-friendly vinyl chloride resin composition. delete The method of claim 1, The plasticizer may be included in an amount of 10 to 70 parts by weight based on 100 parts by weight of the vinyl chloride resin. Eco-friendly vinyl chloride resin composition. delete The method of claim 1, The flame retardant is contained in 2 to 8 parts by weight based on 100 parts by weight of the vinyl chloride-based resin Eco-friendly vinyl chloride resin composition. The method of claim 1, The vinyl chloride-based resin composition further comprises 5 to 70 parts by weight of a filler based on 100 parts by weight of the vinyl chloride-based resin. Eco-friendly vinyl chloride resin composition. The method of claim 7, wherein The filler is characterized in that calcium carbonate, clay, Talc or diatomaceous earth Eco-friendly vinyl chloride resin composition. The method of claim 1, The vinyl chloride-based resin composition is characterized in that it is applied to a PVC coated yarn (yarn) Eco-friendly vinyl chloride resin composition. 100 parts by weight of vinyl chloride resin; 5 to 100 parts by weight of a plasticizer including a terephthalic acid ester compound represented by Formula 1 below; 2 to 7 parts by weight of a calcium-zinc (Ca-Zn) -based stabilizer; Antimony trioxide (Sb ₂ O ₃ ) flame retardant, and 1 to 10 parts by weight of aluminum hydroxide (ATH) or magnesium hydroxide (Mg (OH) ₂ ) flame retardant; And Fatty acid (TiO ₂ ) 1 to 10 parts by weight; Eco-friendly vinyl chloride-based resin composition comprising a PVC coated yarn. [Formula 1]

In the above formula, R ₁ is an alkyl group having 4 to 12 carbon atoms. 11. The method of claim 10, The terephthalic acid ester compound is dioctyl terephthalate (DOTP) or diisononyl terephthalate (DINTP), characterized in that PVC coated yarn. delete