KR101132689B1 - A resin composition with an excellent anti-scratch, flame-retardant, and golss property - Google Patents

Abstract

The present invention relates to a resin composition having excellent scratch resistance, flame retardancy, and gloss characteristics, and more particularly, to a resin comprising a polycarbonate resin, a styrene-vinyl cyan copolymer resin, and a methyl methacrylate-butadiene copolymer resin. The present invention relates to a thermoplastic resin comprising a phosphorus flame retardant, a halogen flame retardant, and a flame retardant aid.

The thermoplastic resin according to the present invention is a resin composition 100 consisting of 20 to 70% by weight of polycarbonate resin, 20 to 70% by weight of styrene-vinyl cyan-based copolymer resin, and 1 to 30% by weight of methyl methacrylate-butadiene copolymer resin. To the weight part, it consists of 1-30 weight part of phosphorus flame retardants, 1-30 weight part of halogen-type flame retardants, and 0.01-10 weight part of flame retardant adjuvant.

The thermoplastic resin according to the present invention is excellent in scratch resistance, flame retardancy and gloss characteristics, and can optionally be improved by adding heat stabilizers, antioxidants, light stabilizers, compatibilizers, pigments, dyes or inorganic additives.

Phosphorus Flame Retardant

Description

A resin composition excellent in scratch resistance, flame retardancy and gloss property {A RESIN COMPOSITION WITH AN EXCELLENT ANTI-SCRATCH, FLAME-RETARDANT, AND GOLSS PROPERTY}

The present invention relates to a thermoplastic resin composition having excellent scratch resistance, flame retardancy, and gloss characteristics, and more specifically, to a flame retardant composed of a polycarbonate resin, a styrene-vinyl cyan copolymer resin, and a methyl methacrylate-butadiene copolymer. A thermoplastic resin composition having excellent scratch resistance and gloss characteristics.

Recently, home appliances have been required to have various characteristics of resins according to trends of large size, high functionality, and high quality. In particular, as high-performance specifications of electric and electronic products are becoming more common, the appearance of exterior materials is becoming more important, such as high glossiness, high-quality color expression, and scratch resistance. In addition, flame retardancy is required due to the stability of fire in home appliances.

Polycarbonate resin is an engineering plastic having excellent mechanical properties such as transparency, thermal stability, self-extinguishing and dimensional stability, as well as high impact and high heat resistance, and is widely used in electric and electronic products and automotive parts. However, polycarbonate resin has the above advantages, but the pencil hardness of B is very fragile scratch resistance, polycarbonate resin itself is difficult to be used as the exterior material of home appliances.

Known methods for imparting scratch resistance to polycarbonate resins include a method of preparing a scratch resistant film and adhering it to a polycarbonate surface, and polymers having excellent scratch resistance such as polycarbonate resin and polymethyl methacrylate resin. There is a method of alloying.

However, the method of adhering the film requires an additional step in addition to the resin manufacturing process, resulting in a cost increase of the resin. In addition, the method of aligning the polycarbonate resin and the polymethyl methacrylate resin has a weakness in that the mechanical properties decrease and phase separation occurs due to the lack of compatibility between the polycarbonate resin and the polymethyl methacrylate resin.

For example, Korean Patent Application No. 2006-0111868 proposed a method of complementarily improving the flame retardancy characteristics under the scratch resistance of polycarbonate resin and polymethyl methacrylate resin, but polycarbonate resin and polymethyl methacrylate. Since the resin is not compatible, there is a disadvantage in that each phase is separated even when melt kneading at a high temperature. Since the refractive index of polycarbonate resin is 1.59 and the refractive index of polymethyl methacrylate resin is 1.49, it is difficult to color the color with high saturation by scattering light when mixing the two resins, and the melt joint line is very high during injection. It is very difficult to apply practically as an exterior material of electrical and electronic products because of the obvious disadvantages.

Korean Patent Publication No. 2004-0079118 improves compatibility by lowering the molecular weight of polycarbonate during kneading process using a metal stearic acid ester for the commercialization of polycarbonate and methacrylate resin, but the mechanical properties are rapidly reduced. It has a disadvantage.

In Korean Patent Application No. 2006-0127265, a polycarbonate resin and a modified polymethyl methacrylate resin are alloyed to reduce the sharpness of a melt joint line, and a method of using a phosphorus flame retardant and a halogen flame retardant in combination to improve flame retardancy is proposed. However, since the flame retardant performance is significantly reduced due to decomposition of the polymethyl methacrylate resin itself, the amount of the flame retardant used is excessively used, and the melt joint line is reduced. It is difficult to be used as the exterior material of the electrical and electronic products required.

In addition, PC / ABS, which is widely used as a high-gloss flame retardant resin for home appliances such as LCD / PDP, has excellent gloss and excellent flame retardant performance, while V-0 flame retardant performance is exhibited when the amount of PC used is at least 70%. As a result, it is a major factor in the cost increase.

Accordingly, there is a continuous demand for new resins that can be used without any additional process or cost increase while securing scratch resistance and fire stability, which are required for housing materials of electronic products.

An object of the present invention is to provide a new resin composition that can solve the problems such as degradation of flame retardant performance and melt joint line according to the method of alloying polycarbonate resin and polymethyl methacrylate resin.

Another object of the present invention is to provide a new scratch resistant thermoplastic resin composition which can be used without a cost increase factor by minimizing the use of a polycarbonate resin having reduced scratch resistance.

It is still another object of the present invention to provide a flame retardant thermoplastic resin composition for scratch resistance that can provide excellent flame resistance without affecting scratch resistance and gloss characteristics.

Another object of the present invention is to provide a scratch-resistant flame retardant thermoplastic resin composition excellent in impact strength.

In order to achieve the above object,

The thermoplastic resin composition of the present invention is characterized by using a polycarbonate resin, a styrene-vinyl cyan-based copolymer resin, a resin in which a methyl methacrylate-butadiene copolymer resin is mixed, and a flame retardant in which phosphorus and halogen are mixed.

In the present invention, the thermoplastic resin composition is 20-70% by weight of polycarbonate resin, 20-70% by weight of styrene-vinyl cyan copolymer resin so that the scratch resistance, gloss characteristics and flame retardant properties can be harmonized , 1-30 parts by weight of a phosphorus flame retardant and 1-30 parts by weight of a halogen-based flame retardant, in 100 parts by weight of a thermoplastic resin composed of 1-30% by weight of methyl methacrylate-butadiene copolymer resin.

In the present invention, it is preferable that the thermoplastic resin further comprises 0.01 to 10 parts by weight of a flame retardant aid so as to improve the properties of the phosphorus flame retardant and the halogen flame retardant.

In the practice of the present invention, the thermoplastic resin composition may optionally add one or more thermal stabilizers, antioxidants, light stabilizers, compatibilizers, pigments, dyes or inorganic additives to improve performance.

(A) polycarbonate resin (PC)

In the present invention, the polycarbonate resin is preferably bisphenol-A-polycarbonate resin, tetramethyl-polycarbonate resin bisphenol-Z-polycarbonate resin, tetrabromer-polycarbonate resin, more preferably compatible And bisphenol-A-polycarbonate resin which is good for impact resistance improvement.

In addition, the polycarbonate resin is preferably 20 to 70 parts by weight in the resin composition. If the content is less than 20 parts by weight, the impact strength and the flame retardant performance may be lowered. If the content is more than 70 parts by weight, the scratch resistance is lowered, resulting in a cost increase factor.

In the practice of the present invention, the polycarbonate resin preferably has a weight average molecular weight of 18,000-40,000, more preferably about 20,000-30,000. If the molecular weight is low in the nature of the polycarbonate resin, mechanical properties such as impact strength is lowered. If the molecular weight is high, the polycarbonate is not dispersed, so fluidity is greatly reduced, which causes difficulty in extrusion and injection molding.

(B) Styrene-vinyl cyan-based copolymer resin (SAN)

In the present invention, the styrene-vinyl cyan-based copolymer resin is a mixture of a styrene monomer and a vinyl cyan monomer, or a mixture containing a small amount of vinyl monomer copolymerizable therewith, for example comprising less than 15% by weight It is resin produced by copolymerizing a mixture. It is commercially available and available from various manufacturers.

In the present invention, the styrene monomer may be styrene, alpha-methylstyrene, p-methylstyrene, vinyltoluene, a mixture of two or more thereof, and the like as the aromatic vinyl monomer, and preferably styrene.

In the present invention, the vinyl cyan monomer may be acrylonitrile, methacrylonitrile, a mixture thereof, or the like, preferably acrylonitrile.

In a preferred embodiment of the present invention, the styrene-vinyl cyan monomer is a styrene-arrylonitrile copolymer (aka SAN).

In the present invention, the styrene-vinyl cyan monomer copolymer is preferably a wide molecular weight distribution so as to improve the kneading with the polycarbonate, more preferably the ratio of the weight average molecular weight and the number average molecular weight is 2.5 to 5.5 It is preferable. When the molecular weight distribution is wide and the ratio of the weight average molecular weight and the number average molecular weight is 2.5 to 5.5, it is possible to manufacture a product having excellent surface gloss and scratch resistance.

Although not theoretically limited, if the molecular weight distribution is wide, the low molecular weight resin can be melted at the low temperature of the surface to increase the smoothness of the molded product, and the high molecular weight resin can increase the rigidity of the molded product to maintain durability required for the final product. It will be possible.

However, if the molecular weight distribution is too wide to reach 5.5 or more, macromolecules, that is, polymers having a molecular weight of 1 million or more, are formed and are not melted during extrusion, such as gel or fish-eye on the surface of the molded product. Excessive surface defects are also generated and low molecular weights are volatilized during extrusion, resulting in deterioration of surface gloss.

In the present invention, the styrene-vinyl cyan-based copolymer has a weight average molecular weight of 130,000 or more, so that the final product can maintain physical properties, in particular rigidity, more preferably the weight average molecular weight is 150,000 to 500,000 More preferred.

In the present invention, it is preferable to use 20-70 parts by weight of the styrene-vinyl cyan-based copolymer, when less than 20 parts by weight, it is difficult to obtain scratch resistance and poor dispersion due to resin dispersion during extrusion This occurs, and when used in excess of 70 parts by weight, mechanical properties such as impact strength is lowered, which causes a defect in injection molding.

In the practice of the present invention, the styrene-vinyl cyan-based copolymer is more preferably a composition ratio of styrene-based and vinyl cyanide is 70-90 parts by weight and 10-30 parts by weight, respectively.

When the content of the vinyl cyanide is high, the thermal stability of the polymer is low, and when the content of the styrene is high, the rigidity of the polymer may be weakened.

In the present invention, the method for producing the styrene-vinyl cyan-based copolymer is not particularly limited as long as it can satisfy the above molecular weight and molecular weight distribution, and can be prepared using conventional emulsion polymerization, block polymerization or suspension polymerization. have. In the practice of the present invention, it is preferable that the acrylonitrile-styrene copolymer uses bulk polymerization for appearance characteristics.

(C) Methyl methacrylate-butadiene copolymer resin (MBS)

In the present invention, the methyl methacrylate-butadiene copolymer is a graft copolymer resin in which a methacrylic acid ester or an alkyl methacrylate ester, an aromatic vinyl compound, and a vinyl cyan compound are polymerized in a butadiene rubber. Increase the compatibility of the acrylonitrile-styrene copolymer.

The butadiene-based rubber used in the graft copolymer is a rubber in which a small amount of unsaturated monomer copolymerizable with butadiene or butadiene, such as styrene and acrylonitrile, is copolymerized.

In the present invention, the methacrylic acid alkyl ester compound or acrylic acid alkyl ester compound grafted to the butadiene rubber is (meth) acrylic acid methyl ester, (meth) acrylic acid ethyl ester, (meth) acrylic acid propyl ester, (meth) acrylic acid 2 -Ethylhexyl ester, (meth) acrylic acid decyl ester, and (meth) acrylic acid lauryl ester, Preferably it is methyl methacrylate. The aromatic vinyl compound is a styrene monomer.

In the present invention, the butadiene-based rubber is preferably made of a small particle size and a large particle size, so that the final product can satisfy both high transparency and high gloss and impact resistance.

In the practice of the present invention, the small particle size rubber preferably has a diameter of 700-1500 mm 3, and more preferably 800-1200 mm 3. In addition, the large-diameter rubber is preferably in the range of 2000-4000 mm in diameter, more preferably 2500-3500 mm in diameter. If the size of the small particle rubber is too large, the transparency and glossiness is lowered, if less, the impact strength is lowered. In addition, in the case of large particle size rubber, if the size becomes too large or small, there is a problem in that the impact strength is lowered.

In a preferred embodiment of the present invention, the graft copolymer is 5-25 parts by weight of butadiene rubber having an average particle diameter of 700 ~ 1500 kPa so that the final product can maintain high gloss, high impact characteristics; 20-50 parts by weight of butadiene rubber having an average particle diameter of 2000-4000 mm 3; 20-40 parts by weight of methyl methacrylate; 10-20 parts by weight of styrene; It may consist of 1-10 parts by weight of acrylonitrile.

In the present invention, the methyl methacrylate-butadiene copolymer resin is alkyl methacrylate in a rubber latex mixture (R) made of a diene rubber polymer (R ₁ , R ₂ ) having different particle diameters having a high rubber content A monomer mixture comprising an aster, an aromatic vinyl compound and an unsaturated nitrile monomer and an emulsifier and a dispersant of the alkyl aryl sulfonate salt are added and stirred to perform graft polymerization. The copolymer resin prepared by the above method is 5-25 parts by weight of a diene rubber polymer (R ₁ ) having an average particle diameter of 700-1500 A and 20-50 parts by weight of a diene rubber polymer (R ₂ ) having an average particle diameter of 2000-4000A. 20-40 parts by weight of alkyl methacrylate compound 10-20 parts by weight of aromatic vinyl compound 1-10 parts by weight of unsaturated nitrile compound is prepared by graft copolymerization into rubber latex mixture R having a high solid content.

In the present invention, the methyl methacrylate-butadiene copolymer is preferably used 1-30 parts by weight, more preferably 2-20 parts by weight, when less than 1 part by weight, the compatibility between the resins is lowered resin Phase separation between them occurs, and mechanical properties decrease, resulting in appearance defects. If used in excess of 30 parts by weight, scratch resistance and flame retardant performance is lowered.

(D) flame retardant

In the present invention, the flame retardant is composed of a flame retardant mixed with phosphorus-based and halogen-based, preferably consisting of 1-30 parts by weight of phosphorus-based flame retardant and 1-30 parts by weight of halogen-based flame retardant.

In the present invention, when the phosphorus-based flame retardant is used alone, the surface gloss property is excellent, but it is difficult to express flame retardant performance or mechanical properties, and when only the halogen-based flame retardant is used alone, the fluidity is greatly reduced, resulting in gas traces on the surface of the molded article. There is a limit to the appearance of appearance characteristics such as and weld lines.

In the present invention, the phosphorus-based flame retardant refers to a flame-retardant containing a common phosphorus, for example, phosphate, phosphonate, phosphinate, phosphine oxide (Phosphin Oxide) , Phosphazene, aromatic phosphate ester oligomer (PX-200) and metal salts thereof may be applied.

Preferably, a combination of triphenyl phosphate (TPP) represented by formula (1) below and bisphenol a diphosphate (BPADP), which is a flame retardant of the aromatic phosphate ester oligomer series represented by formula (2), may be used.

[화학식 1]

[Formula 1]

[화학식 2]

(2)

In the present invention, the phosphorus flame retardant is preferably used 1-30 parts by weight, more preferably 3-20 parts by weight, when less than 1 part by weight, fluidity is poor, surface defects increase, and gloss properties are reduced. When used in excess of 30 parts by weight, it is difficult to express mechanical properties.

In the present invention, the halogen-based flame retardant decabromer diphenyl oxide (DBDPO), octabromer diphenyl oxide (OBDPO), tetrabromer bisphenol A (TBBA), 2,4,6 tribromerphenoxy 1, Bromine-based flame retardants such as 3,5 trizan (SR-245) and brominated aromatic compounds (S-8010, S-4010) and flame retardants of the bromine laminate epoxy oligomer (BEO) type are used. More preferably, it is preferable to use 2,4,6 tribromerphenoxy 1,3,5 trizan (SR-245) (Formula 3), and when using a bromine-based flame retardant, it is difficult to express blackness and clarity. There is this.

(Formula 3)

In the practice of the present invention, the amount of 2,4,6 tribromerphenoxy 1,3,5 trizan (SR-245) used is preferably 1-30 parts by weight, more preferably 5-20 parts by weight. And, when used less than 1 part by weight there is a limit in the expression of flame retardant performance, when used in excess of 30 parts by weight there is a limit in the appearance of gloss and appearance characteristics.

(E) other additives

In the present invention, other additives that may be used to assist in improving the function of the resin are 0.01-6 parts by weight of pigments and dyes, 0.01-5.0 parts by weight of UV absorbers, 0.3-5.0 parts by weight of lubricant and 0.01-10 parts by weight of flame retardant aids. It is made to include.

In the present invention, the ultraviolet absorber is used for absorbing ultraviolet rays, and commercially available commercial ultraviolet absorbers can be used. In the practice of the invention, it is preferable to use 0.01-5.0 parts by weight of the ultraviolet absorber, respectively or mixed with benzotriazole or HALS system.

In the present invention, the lubricant may be used to improve processing characteristics, for example, ethylene bis stearamide or polyethylene wax stearic acid, PE-wax, acrylic polymer WAX, etc. may be used, and 0.1 to 5.0 parts by weight is added. Preferably it is 0.2-3.0 weight part.

In the present invention, the pigments and dyes can be colored and added according to the desired color, and the amount of pigments and dyes is preferably 0.01 to 6.0 parts by weight.

In the present invention, the flame retardant auxiliary agent is preferably used for the non-antimony compound PTFE for the expression of blackness, the amount of use is preferably 0.01-5 parts by weight.

The resin composition according to the present invention is prepared by using an acrylonitrile-styrene copolymer resin and a methyl methacrylate-butadiene copolymer instead of an alloy of a methacrylate resin in a polycarbonate resin. It was possible to improve the degradation of the flame retardancy.

The resin composition according to the present invention can also produce a very economical thermoplastic resin due to the difference in cost between the polymethyl methacrylate resin and the acrylonitrile-styrene copolymer resin.

In addition, by using a phosphorus flame retardant and a halogen flame retardant in combination, it was possible to secure flame retardancy and to express high gloss characteristics.

Example

The resin composition according to the present invention can produce a resin composition using a general mixed melt processing apparatus such as a Banbury mixer and an extruder. The resin components are prepared by uniformly dispersing each other in an extruder and pelletizing the melt by cooling in a conventional synthetic resin manufacturing method.

Hereinafter, the present invention will be described in detail with reference to the following Examples, but the present invention is not limited to the Examples.

Examples 1-4

After mixing sufficiently with a small tumble mixer for a uniform mixing in the composition ratio as shown in Table 1, the extrusion temperature in the twin screw extruder with Φ = 32mm extruded in the range of 220-250 ℃, cooled and solidified to form a pellet. After drying for 4 hours in a circulating hot air dryer maintained at 100 ° C, the test temperature was changed to an injection temperature of 200-250 ° C and a mold temperature of 65 ° C in a 160-ton injection machine, and then evaluated according to the following method.

Comparative Example 1-4

Specimens were prepared in the same manner as in the compositions and compositions described in Table 1 above.

Test Example 1

After leaving the specimen prepared according to Example 1-4 and Comparative Example 1-4 for 24 hours, the physical properties were measured according to the following method, and the pellets are shown in Table 1 by measuring the fluidity after drying.

<Test method>

(1) pencil hardness

It measured at 500g load like ASTM D336, and determined that it is suitable for scratch-resistant resin when the value is F or more.

The test was conducted in the order of a soft pencil (6B) to a hard pencil (9H). The test is conducted five times, and the pencil is used for hardness when the coating film of the specimen is damaged.

(2) Meltflow Index (g / 10min)

ASTM D1238 was used and was 220 ° C., 10 kg.

(3) glossiness measurement

Glossiness was measured using a Micro Haze Plus.

(4) Measurement of Izod impact strength

Izod impact strength was measured at 1/8 "thickness according to the method specified in ASTM D256.

(5) Appearance characteristics

It was visually discriminated according to the presence or absence of gas marks, flow marks, and pinholes, which may occur on the surface of the molded article, and molded articles without gas traces, flow marks, and pinholes were determined to be good.

[Table 1]

Item Example Comparative Example One 2 3 4 One 2 3 4 Furtherance
(A + B + C
= 100% by weight)
A 42 42 50 50 42 42 42 42 B B1 50 50 40 40 - 50 50 50 B2 - - - - 50 - C 8 8 10 10 8 8 8 8 D D1 10 - 10 - 10 23 D2 - 10 - 10 - - 23 E 14 14 14 14 14 - - 20 F 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 G 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Properties Pencil hardness F F F F HB B B F liquidity 80 50 70 45 100 110 140 15 Glossiness 100 100 100 100 100 105 106 95 Impact strength 10 9 15 14 6 3.7 3.5 11 UL94 Flame Retardant (1/16 ") V-O V-O V-O V-O V-O HB HB V-0 Appearance Characteristics Good Good Good Good Good Good Good Bad

(week)

A) polycarbonate resin (Samyang Corporation Trirex 3025 molecular weight 25,000)

B) Acrylonitrile-Styrene Copolymer

B1 (Kumho Petrochemical SAN 350HM weight average molecular weight 15.5 million, AN 34%)

B2 (Kumho Petrochemical SAN 326 weight average molecular weight 120,000, AN 26%)

C) Methyl methacrylate-butadiene copolymer resin (Kumho Petrochemical M560)

D) Phosphorus Flame Retardant

D1 (triphenyl phosphate (TPP) (Daihachi Chemical))

D2 (bisphenol-A diphosphate (BPADP) (Asahidenka FP-700))

E) 2,4,6, Tribromerphenoxy 1,3,5 Trizan (Japan First Industries SR-245)

F) PE-wax (Lion Chemical)

G) PTFE (DuPont)

In the above table, in Examples 1-4, pencil hardness, flowability, glossiness, flame retardancy, and appearance characteristics are generally better than those of the comparative example. Such scratch resistance and flame retardancy are suitable for scratch flame retardant resins. Indicates that it has

In order to improve the impact strength, as shown in Examples 3 and 4, the impact strength can be easily improved by increasing the content of the methyl methacrylate-butadiene copolymer resin together with the PC increase.

Looking at the comparative example 1 in the above table, when using a resin having a low molecular weight of acrylonitrile-styrene copolymer resin and a low acrylonitrile content, it is difficult to express pencil hardness.

In Comparative Examples 2 and 3, when the phosphorus-based flame retardant alone is used, the glossiness and appearance characteristics are excellent, but mechanical properties are hardly expressed, and flame retardant performance is greatly reduced. In Comparative Example 4, when the halogen-based flame retardant alone is used, the mechanical and flame retardant performances are excellent, but the glossiness and appearance characteristics are difficult.

Although the present invention has been described in detail with reference to the described embodiments, various modifications and variations within the technical scope of the present invention can be readily used by those skilled in the art, and all such modifications and modifications are disclosed in the present invention. It can be seen to be included in the area of.

Claims (10)

20 to 70% by weight of polycarbonate resin, 20 to 70% by weight of styrene-vinyl cyan copolymer resin, 1 to 30% by weight of methyl methacrylate-butadiene copolymer resin It further comprises 1 part by weight and 1-30 parts by weight of halogen-based flame retardant and 0.1-10 parts by weight of a flame retardant aid, Here, the methyl methacrylate-butadiene copolymer resin is a scratch-resistant flame-retardant thermoplastic resin composition, characterized in that the graft body of methyl methacrylate, styrene, and vinyl cyan monomer to butadiene rubber. delete delete The scratch-resistant flame retardant thermoplastic resin composition of claim 1, wherein the polycarbonate resin has a weight average molecular weight of 18,000-40,000. The method of claim 1, wherein the styrene-vinyl cyan-based copolymer has a weight average molecular weight and a number average molecular weight of 2.5 to 5.5, a weight average molecular weight of 130,000-500,000, acrylonitrile of 10 to 30% by weight, styrene The scratch-resistant flame-retardant thermoplastic resin composition, characterized in that 70 to 90% by weight. According to claim 1, wherein the methyl methacrylate-butadiene copolymer resin is 5-25 parts by weight of butadiene rubber having an average particle diameter of 700-1500 kPa; 20-50 parts by weight of butadiene rubber having an average particle diameter of 2000-4000 mm 3; 20-40 parts by weight of methyl methacrylate; 10-20 parts by weight of styrene; The scratch-resistant flame retardant thermoplastic resin composition, characterized in that the graft copolymer consisting of 1-10 parts by weight of acrylonitrile. According to claim 1, wherein the phosphorus flame retardant is a scratch-resistant flame retardant thermoplastic resin, characterized in that at least one selected from triphenyl phosphate (TPP), aromatic phosphate ester oligomer (PX-200), bisphenol A di phosphate (BPADP) flame retardant. Composition. The method of claim 1, The phosphorus flame retardant and the compound represented by the following formula (1)

(Formula 1) It is a compound represented by following General formula (2), or a mixture thereof,

(2) The halogen flame retardant is a compound represented by the following formula (3)

(Formula 3) A scratch resistant flame retardant thermoplastic resin composition, characterized in that The scratch-resistant flame retardant thermoplastic resin composition of claim 1, wherein the flame retardant aid is polytetrafluoroethylene (PTFE). An electrical and electronics housing molded from the scratch resistant flame retardant thermoplastic resin composition of claim 1.