Thermoplastic resin composition and molded article manufactured therefrom

Abstract

The thermoplastic resin composition according to the present invention comprises: about 100 parts by weight of a polyester resin comprising ethylene glycol, 1, 4-cyclohexanedimethanol (CHDM), and isosorbide as diol components; about 30 parts by weight to about 100 parts by weight of a polycarbonate resin, the polycarbonate resin including 3, 3 '-dimethyl bisphenol A as a diol component; about 20 parts by weight to about 90 parts by weight of a phosphorus-based flame retardant represented by Chemical Formula 1; and about 30 parts by weight to about 90 parts by weight of glass fibers. The thermoplastic resin composition has excellent environmental friendliness, flame retardancy, heat resistance, impact resistance, and a balance of these physical properties, and the like.

Description

Technical Field

[0001] The present invention relates to a thermoplastic resin composition and a molded product made therefrom. More specifically, the present invention relates to a thermoplastic resin composition having excellent environmental protection, flame retardancy, heat resistance, impact resistance and a balance of these properties and a molded product made therefrom. Background Art

[0002] Polycarbonate resin is an engineering plastic that is excellent in transparency, impact resistance, heat resistance, and flame retardancy, and is widely used in various fields such as electrical / electronic products, OA equipment, automotive materials, and building materials. In addition, polycarbonate resin reinforced with glass fiber is widely used in products that require high rigidity and dimensional stability, and is widely used in housing materials for electrical / electronic products due to its excellent flame retardancy, etc.

[0003] Recently, due to environmental issues, the demand for environmentally friendly materials has increased dramatically. As a result, the regulation of bisphenol A (BPA), which is classified as a carcinogen, has become more stringent, and polycarbonate resins and phosphorus-based flame retardants that usually contain BPA have been gradually replaced by materials such as polyester resins that do not contain BPA.

[0004] However, polyester resins and the like used as substitutes for polycarbonate resins have problems such as significantly reduced flame retardancy and impact resistance.

[0005] Therefore, there is a need to develop a thermoplastic resin composition that is excellent in environmental friendliness, flame retardancy, heat resistance, impact resistance, and a balance among these properties.

[0006] The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2020-0137836 and the like. Summary of the invention

[0007] An object of the present invention is to provide a thermoplastic resin composition having excellent environmental properties, flame retardancy, heat resistance, impact resistance, and a balance among these properties.

[0008] Another object of the present invention is to provide a molded article formed from the thermoplastic resin composition.

[0009] The above-mentioned object and other objects of the present invention can be achieved by the present invention described below.

[0010] 1. One aspect of the present invention relates to a thermoplastic resin composition. The thermoplastic resin composition comprises: about 100 parts by weight of a polyester resin, the polyester resin comprising ethylene glycol, 1,4-cyclohexanedimethanol (CHDM) and isosorbide as diol components; about 30 parts by weight to about 100 parts by weight of a polycarbonate resin, the polycarbonate resin comprising 3,3'-dimethylbisphenol A as a diol component; about 20 parts by weight to about 90 parts by weight of a phosphorus-based flame retardant represented by the following chemical formula 1; and about 30 parts by weight to about 90 parts by weight of glass fiber.

[0011] [Chemical formula 1]

[0012]

[0013] In the above Chemical Formula 1, R1, R2, R3 and R4 are each independently a hydrogen atom, a C6-C20 aryl group or a C6-C20 aryl group substituted by a C1-C10 alkyl group, and n is an integer of 1 to 10.

[0014] 2. In the specific example of 1 above, the polyester resin can be obtained by condensing a dicarboxylic acid component including terephthalic acid with a diol component, wherein the diol component contains about 5 mol% to about 35 mol% of ethylene glycol, about 35 mol% to about 65 mol% of 1,4-cyclohexanedimethanol and about 15 mol% to about 45 mol% of isosorbide in 100 mol% of the total diol component.

[0015] 3. In the specific example of 1 or 2 above, the polycarbonate resin may contain about 70 mol % to about 90 mol % of 3,3'-dimethylbisphenol A, about 5 mol % to about 15 mol % of bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane and about 5 mol % to about 15 mol % of 4,4'-biphenol as diol components.

[0016] 4. In the specific examples of 1 to 3 above, the weight average molecular weight (Mw) of the polycarbonate resin may be about 10,000 g / mol to about 200,000 g / mol.

[0017] 5. In the specific examples 1 to 4 above, the glass fiber may have a rectangular or elliptical cross-section, an aspect ratio of the cross-section (long diameter of the cross-section / short diameter of the cross-section) of about 1.5 to about 10, and a short diameter of about 2 μm to about 10 μm.

[0018] 6. In the specific examples 1 to 5 above, the weight ratio of the polycarbonate resin to the phosphorus-based flame retardant may be about 1:0.3 to about 1:1.5.

[0019] 7. In the specific examples 1 to 6 above, the weight ratio of the phosphorus-based flame retardant to the glass fiber may be about 1:0.5 to about 1:2.

[0020] 8. In the specific examples 1 to 7 above, the flame retardancy of a 1.2 mm thick specimen of the thermoplastic resin composition measured according to the UL-94 vertical test method may be V-0 or above.

[0021] 9. In the specific examples 1 to 8 above, according to ASTM D648, under a load of 18.56 kgf / cm 2 The heat deformation temperature (HDT) of the thermoplastic resin composition measured at a heating rate of 120° C. / hour may be about 110° C. to about 130° C.

[0022] 10. In the specific examples 1 to 9 above, the notched impact strength of a 1 / 8" thick specimen of the thermoplastic resin composition measured according to ASTM D256 may be about 5 kgf·cm / cm to about 20 kgf·cm / cm.

[0023] 11. Another aspect of the present invention relates to a molded product formed from the thermoplastic resin composition according to any one of 1 to 10 above.

[0024] The present invention has the effect of providing a thermoplastic resin composition excellent in environmental protection, flame retardancy, heat resistance, impact resistance and balance of these properties, and a molded product formed therefrom. DETAILED DESCRIPTION

[0025] Hereinafter, the present invention will be described in detail as follows.

[0026] The thermoplastic resin composition of the present invention comprises: (A) a polyester resin; (B) a polycarbonate resin; (C) a phosphorus-based flame retardant; and (D) glass fiber.

[0027] In the present specification, “a to b” indicating a numerical range is defined as “≥a and ≤b”.

[0028] (A) Polyester resin

[0029] The polyester resin of the present invention is an environmentally friendly polyester resin, which contains ethylene glycol, 1,4-cyclohexanedimethanol (CHDM) and isosorbide as diol components.

[0030] In a specific example, the polyester resin can be obtained by polycondensing an aromatic dicarboxylic acid or an aromatic dicarboxylate as a dicarboxylic acid component with ethylene glycol, 1,4-cyclohexanedimethanol, and isosorbide as a diol component, wherein the aromatic dicarboxylic acid is terephthalic acid (TPA), isophthalic acid (IPA), 1,2-naphthalene dicarboxylic acid, 1,4-naphthalene dicarboxylic acid, 1,5-naphthalene dicarboxylic acid, 1,6-naphthalene dicarboxylic acid, 1,7-naphthalene dicarboxylic acid, 1,8-naphthalene dicarboxylic acid, 2,3-naphthalene dicarboxylic acid, 2,6-naphthalene dicarboxylic acid, 2,7-naphthalene dicarboxylic acid, and the aromatic dicarboxylate is dimethyl terephthalate (DMT), dimethyl isophthalate (IPA), and the like. isophthalate), 1,2-naphthalene dicarboxylic acid dimethyl ester, 1,5-naphthalene dicarboxylic acid dimethyl ester, 1,7-naphthalene dicarboxylic acid dimethyl ester, 1,7-naphthalene dicarboxylic acid dimethyl ester, 1,8-naphthalene dicarboxylic acid dimethyl ester, 2,3-naphthalene dicarboxylic acid dimethyl ester, 2,6-naphthalene dicarboxylic acid dimethyl ester, 2,7-naphthalene dicarboxylic acid dimethyl ester, etc. The polyester resin can be manufactured by applying the dicarboxylic acid component and the diol component through a known polycondensation method, or an environmentally friendly polyester resin product containing the dicarboxylic acid component and the diol component can be used.

[0031] In a specific example, the diol component may include about 5 mol% to about 35 mol%, such as about 10 to about 30 mol%, of ethylene glycol in 100 mol% of the total diol component; about 35 mol% to about 65 mol%, such as about 40 mol% to about 60 mol% of 1,4-cyclohexanedimethanol; and about 15 mol% to about 45 mol%, such as about 20 mol% to about 40 mol% of isosorbide. Within the above range, the thermoplastic resin composition may have excellent environmental protection and heat resistance, etc.

[0032] In a specific example, the intrinsic viscosity [η] of the polyester resin of the present invention measured according to ASTM D2857 may be about 0.5 dl / g to about 1.5 dl / g, such as about 0.7 dl / g to about 1.3 dl / g. Within the above range, the thermoplastic resin composition may have excellent mechanical properties and the like.

[0033] (B) Polycarbonate resin

[0034] A polycarbonate resin in a specific example of the present invention does not contain bisphenol A as a diol component, and the polycarbonate resin can be applied to the environmentally friendly polyester resin together with a specific phosphorus-based flame retardant and glass fiber, thereby improving the environmental friendliness, flame retardancy, heat resistance, impact resistance and balance of these physical properties of the thermoplastic resin composition. As the polycarbonate resin, an aromatic polycarbonate resin produced by reacting a diol component (bisphenols, aromatic diol compounds) containing 3,3'-dimethylbisphenol A (DMBPA) with precursors such as phosgene, halogenated formate, and carbonic acid diester can be used.

[0035] In a specific example, the polycarbonate resin may include, in addition to 3,3'-dimethylbisphenol A as a diol component, other diol components other than 2,2-bis(4-hydroxyphenyl)propane known as bisphenol A. For example, in addition to 3,3'-dimethylbisphenol A, 4,4'-biphenol, bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, 2,4-bis(4-hydroxyphenyl)-2-methylbutane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 2,2-bis(3-chloro-4-hydroxyphenyl)propane, 2,2-bis(3,5-dichloro-4-hydroxyphenyl)propane, etc. may be included, but not limited thereto. Specifically, 4,4′-biphenol, bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, or the like may be used together with 3,3′-dimethylbisphenol A (DMBPA).

[0036] In a specific example, the diol component in the polycarbonate resin may include, in 100 mol% of the total diol component, about 70 mol% to about 90 mol% of 3,3'-dimethylbisphenol A, for example, about 75 mol% to about 85 mol%; about 5 mol% to about 15 mol% of bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, for example, about 7.5 mol% to about 12.5 mol%; and about 5 mol% to about 15 mol% of 4,4'-biphenol, for example, about 7.5 mol% to about 12.5 mol%. Within the above range, the thermoplastic resin composition may have excellent environmental protection and heat resistance, etc.

[0037] In a specific example, the weight average molecular weight (Mw) of the polycarbonate resin measured by gel permeation chromatography (GPC) may be about 10,000 g / mol to about 200,000 g / mol, for example, about 20,000 g / mol to about 100,000 g / mol. Within the above range, the thermoplastic resin composition may have excellent impact resistance and fluidity (processability), etc.

[0038] In a specific example, about 30 parts by weight to about 100 parts by weight, such as about 40 parts by weight to about 90 parts by weight, of the polycarbonate resin may be included relative to about 100 parts by weight of the polyester resin. When the content of the polycarbonate resin is less than about 30 parts by weight relative to about 100 parts by weight of the polyester resin, the flame retardancy of the thermoplastic resin composition may be reduced; when it exceeds about 100 parts by weight, the impact resistance of the thermoplastic resin composition may be reduced.

[0039] (C) Phosphorus flame retardant

[0040] A phosphorus-based flame retardant according to a specific example of the present invention does not contain a unit derived from bisphenol A, and the phosphorus-based flame retardant can be applied to the environmentally friendly polyester resin together with a specific polycarbonate resin and glass fiber, thereby improving the environmental protection, flame retardancy, heat resistance, impact resistance and balance of these properties of the thermoplastic resin composition. The phosphorus-based flame retardant can be a phosphonate compound represented by the following chemical formula 1.

[0041] [Chemical formula 1]

[0042]

[0043] In the above Chemical Formula 1, R1, R2, R3 and R4 are independently a hydrogen atom, a C6-C20 (carbon number 6 to 20) aryl group or a C6-C20 aryl group substituted by a C1-C10 alkyl group, and n is an integer from 1 to 10, for example, an integer from 1 to 5.

[0044] In a specific example, about 20 to about 90 parts by weight, such as about 30 to about 80 parts by weight, of the phosphorus-based flame retardant may be included relative to about 100 parts by weight of the polyester resin. When the content of the phosphorus-based flame retardant is less than about 20 parts by weight relative to about 100 parts by weight of the polyester resin, the flame retardancy of the thermoplastic resin composition may be reduced; when it exceeds about 90 parts by weight, the heat resistance and impact resistance of the thermoplastic resin composition may be reduced.

[0045] In a specific example, the weight ratio (B:C) of the polycarbonate resin to the phosphorus-based flame retardant may be about 1:0.3 to about 1:1.5, such as about 1:0.4 to about 1:1.3. Within the above range, the thermoplastic resin composition may have better flame retardancy and impact resistance.

[0046] (D) Fiberglass

[0047] The glass fiber of a specific example of the present invention can be applied to the environmentally friendly polyester resin together with a specific polycarbonate resin and a specific phosphorus-based flame retardant, thereby improving the environmental friendliness, flame retardancy, heat resistance, impact resistance and balance of these properties of the thermoplastic resin composition.

[0048] In a specific example, the glass fiber may have a cross-section in various shapes such as circular, elliptical, rectangular, etc.

[0049] In a specific example, the glass fiber may be a flat glass fiber having a rectangular or elliptical cross section. The cross-sectional aspect ratio (long diameter of the cross section / short diameter of the cross section) of the flat glass fiber measured by a scanning electron microscope (SEM) may be from about 1.5 to about 10, for example, from about 2 to about 8; the short diameter of the cross section may be from about 2 μm to about 10 μm, for example, from about 4 μm to about 8 μm; the length before processing may be from about 1 mm to about 15 mm, for example, from about 2 mm to about 8 mm. Within the above range, the rigidity, processability, appearance, etc. of the thermoplastic resin composition can be improved.

[0050] In a specific example, the glass fiber may be glass fiber treated by a conventional surface treatment agent.

[0051] In a specific example, about 30 parts by weight to about 90 parts by weight, such as about 40 parts by weight to about 70 parts by weight, of the glass fiber may be included relative to about 100 parts by weight of the polyester resin. When the content of the glass fiber is less than about 30 parts by weight relative to about 100 parts by weight of the polyester resin, the rigidity of the thermoplastic resin composition may be reduced; when it exceeds about 90 parts by weight, the flame retardancy and appearance characteristics of the thermoplastic resin composition may be reduced.

[0052] In a specific example, the weight ratio (C:D) of the phosphorus-based flame retardant to the glass fiber may be about 1:0.5 to about 1:2, such as about 1:0.6 to about 1:1.9. Within the above range, the thermoplastic resin composition may have better flame retardancy and appearance characteristics.

[0053] The thermoplastic resin composition of a specific example of the present invention may further include additives included in conventional thermoplastic resin compositions. As the additives, impact modifiers, antioxidants, anti-drip agents, lubricants, mold release agents, nucleating agents, antistatic agents, stabilizers, pigments, dyes and mixtures thereof may be exemplified, but are not limited thereto. When the additives are used, the content of the additives may be from about 0.001 parts by weight to about 40 parts by weight, for example, from about 0.1 parts by weight to about 10 parts by weight, relative to about 100 parts by weight of the polyester resin.

[0054] The thermoplastic resin composition of a specific example of the present invention may be in the form of pellets by mixing the components and melt-extruding at a temperature of about 240°C to about 300°C, for example, about 260°C to about 280°C using a conventional twin-screw extruder.

[0055] In a specific example, the flame retardancy of a 1.2 mm thick specimen of the thermoplastic resin composition measured according to the UL-94 vertical test method may be V-0 or higher.

[0056] In a specific example, according to ASTM D648, at a load of 18.56 kgf / cm 2 The heat deformation temperature (HDT) of the thermoplastic resin composition measured at a heating rate of 120° C. / hour may be about 110° C. to about 130° C., for example, about 115° C. to about 125° C.

[0057] In a specific example, the notched impact strength of a 1 / 8" thick specimen of the thermoplastic resin composition measured according to ASTM D256 may be about 5 kgf·cm / cm to about 20 kgf·cm / cm, for example, about 6 kgf·cm / cm to about 15 kgf·cm / cm.

[0058] The molded product of the present invention is formed by the thermoplastic resin composition. The antibacterial thermoplastic resin composition can be made into a particle form, and the obtained particles can be made into various molded products (products) by various molding methods such as injection molding, extrusion molding, vacuum molding, casting molding, etc. These molding methods are well known to those with general knowledge in the field to which the present invention belongs. The molded product has excellent environmental protection, flame retardancy, heat resistance, impact resistance and the balance of these physical properties, etc., and is therefore suitable for various electrical / electronic product shells based on mobile wearable device materials.

[0059] The present invention is described in more detail below by way of examples, but these examples are for illustrative purposes only and are not to be construed as limiting the present invention.

[0060] Example

[0061] Next, the specifications of the components used in Examples and Comparative Examples are as follows.

[0062] (A) Polyester resin

[0063] An environmentally friendly polyester resin (manufacturer: SK Chemical, product name: Ecozen T-120) containing ethylene glycol, 1,4-cyclohexanedimethanol (CHDM), and isosorbide as diol components was used.

[0064] (B) Polycarbonate resin

[0065] (B1) A polycarbonate resin (weight average molecular weight: about 30,000 g / mol) prepared by the following method is used: diphenyl carbonate and 3,3'-dimethylbisphenol A (DMBPA), bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane (TMC) and 4,4'-biphenol (BP) as diol components in ratios of 80 mol%, 10 mol% and 10 mol%, respectively, are added to a reactor and an ester exchange reaction is carried out under a temperature condition of about 280°C.

[0066] (B2) A bisphenol A-based polycarbonate resin (manufacturer: Lotte Chemical, weight average molecular weight (Mw): about 25,000 g / mol) was used.

[0067] (C) Phosphorus flame retardant

[0068] (C1) A high molecular weight phosphate compound (manufacturer: Adeka, product name: FP-900L) was used.

[0069] (C2) Oligomeric bisphenol-A diphosphate (manufactured by DAIHACHI, product name: CR-741) is used.

[0070] (D) Fiberglass

[0071] Glass fiber (manufacturer: Nittobo, product name: CSG 3PA-832) was used.

[0072] Examples 1 to 8 and Comparative Examples 1 to 6

[0073] After adding the above components in the amounts shown in Tables 1 and 2 below, the pellets were extruded at about 270°C to produce pellets. During extrusion, a twin-screw extruder with L / D=44 and a diameter of 45 mm was used. The pellets were dried at about 100°C for more than about four hours, and then injection molded in a 6oz injection molding machine (molding temperature: about 270°C, mold temperature: about 120°C) to produce a sample. The physical properties of the obtained samples were evaluated by the following method, and the results are shown in Tables 1 and 2 below.

[0074] Physical property measurement method

[0075] (1) Environmental evaluation: Using HPLC (high performance liquid chromatography) equipment and a chromatographic column (PEAKMAN, CALCELLPAK 5um C18), measurements were performed while gradually changing the mobile phase of acetonitrile:water from 50:50 to 100:0 at a column temperature of 40°C and a flow rate of 0.7 mL / min. A photodiode array detector was then used to detect the presence of bisphenol A (BPA) (×: BPA not detected, ○: BPA detected).

[0076] (2) Flame retardancy evaluation: The flame retardancy of a 1.2 mm thick specimen was measured according to the UL-94 vertical test method.

[0077] (3) Heat deformation temperature (HDT, unit: °C): According to ASTM D648, under a load of 18.56 kgf / cm 2 , the heat deformation temperature is measured under the condition of a heating rate of 120℃ / hour.

[0078] (4) Notched impact strength (unit: kgf·cm / cm): The notched impact strength of a 1 / 8" thick specimen was measured according to ASTM D256.

[0079] [Table 1]

[0080]

[0081] [Table 2]

[0082]

[0083] It can be seen from the above results that the thermoplastic resin composition of the present invention is excellent in environmental protection (no BPA detected), flame retardancy (flame retardancy), heat resistance (heat deformation temperature), impact resistance (notched impact strength) and the balance of these physical properties.

[0084] In addition, it can be seen that in the case of Comparative Example 1 where the amount of polycarbonate resin used is small, the flame retardancy and the like are reduced; in the case of Comparative Example 2 where the amount of polycarbonate resin used is too much, the impact resistance and the like are reduced; in the case of Comparative Example 3 where bisphenol A polycarbonate resin (B2) is used instead of the polycarbonate resin in the present invention, the environmental protection and flame retardancy and the like are reduced; in the case of Comparative Example 4 where the amount of phosphorus-based flame retardant used is small, the flame retardancy and the like are reduced; in the case of Comparative Example 5 where the amount of phosphorus-based flame retardant used is too much, the heat resistance and impact resistance and the like are reduced; in the case of Comparative Example 6 where oligomeric bisphenol A diphosphate (C2) is used instead of the phosphorus-based flame retardant in the present invention, the environmental protection, heat resistance and impact resistance and the like are reduced.

[0085] The present invention has been described above with the embodiments as the center. A person with general knowledge in the technical field to which the present invention belongs should understand that the present invention can be implemented by modified forms within the scope of the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from an illustrative point of view rather than a restrictive point of view. The scope of the present invention is reflected in the claims rather than the foregoing description, and all differences within the scope equivalent to the claims should be interpreted as included in the present invention.

Claims

1. A thermoplastic resin composition, characterized in that Include: about 100 parts by weight of a polyester resin, wherein the polyester resin comprises ethylene glycol, 1,4-cyclohexanedimethanol and isosorbide as diol components; about 30 parts by weight to about 100 parts by weight of a polycarbonate resin, the polycarbonate resin comprising 3,3'-dimethylbisphenol A as a diol component; About 20 parts by weight to about 90 parts by weight of a phosphorus-based flame retardant represented by the following Chemical Formula 1; and about 30 parts by weight to about 90 parts by weight of glass fibers, [Chemical formula 1] In the above Chemical Formula 1, R1, R2, R3 and R4 are each independently a hydrogen atom, a C6-C20 aryl group or a C6-C20 aryl group substituted by a C1-C10 alkyl group, and n is an integer of 1 to 10.

2. The thermoplastic resin composition according to claim 1, characterized in that The polyester resin is obtained by polycondensing a dicarboxylic acid component including terephthalic acid with a diol component, wherein the diol component includes about 5 mol % to about 35 mol % of ethylene glycol, about 35 mol % to about 65 mol % of 1,4-cyclohexanedimethanol, and about 15 mol % to about 45 mol % of isosorbide based on 100 mol % of the total diol component.

3. The thermoplastic resin composition according to claim 1 or 2, characterized in that: The polycarbonate resin includes about 70 mol % to about 90 mol % of 3,3'-dimethylbisphenol A, about 5 mol % to about 15 mol % of bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, and about 5 mol % to about 15 mol % of 4,4'-biphenol as diol components.

4. The thermoplastic resin composition according to any one of claims 1 to 3, characterized in that The polycarbonate resin has a weight average molecular weight Mw of about 10,000 g / mol to about 200,000 g / mol.

5. The thermoplastic resin composition according to any one of claims 1 to 4, characterized in that: The glass fiber has a rectangular or elliptical cross section, an aspect ratio of the cross section of about 1.5 to about 10, and a short diameter of about 2 μm to about 10 μm, wherein the aspect ratio of the cross section is the ratio of the long diameter of the cross section to the short diameter of the cross section.

6. The thermoplastic resin composition according to any one of claims 1 to 5, characterized in that: A weight ratio of the polycarbonate resin to the phosphorus-based flame retardant is about 1:0.3 to about 1:1.

5.

7. The thermoplastic resin composition according to any one of claims 1 to 6, characterized in that: A weight ratio of the phosphorus-based flame retardant to the glass fiber is about 1:0.5 to about 1:

2.

8. The thermoplastic resin composition according to any one of claims 1 to 7, characterized in that The flame retardancy of a 1.2 mm thick specimen of the thermoplastic resin composition measured according to the UL-94 vertical test method is V-0 or higher.

9. The thermoplastic resin composition according to any one of claims 1 to 8, characterized in that According to ASTM D648, at a load of 18.56 kgf / cm 2 The heat deformation temperature (HDT) of the thermoplastic resin composition measured at a heating rate of 120°C / hour is about 110°C to about 130°C.

10. The thermoplastic resin composition according to any one of claims 1 to 9, characterized in that The notched impact strength of a 1 / 8" thickness specimen of the thermoplastic resin composition measured according to ASTM D256 is about 5 to about 20 kgf·cm / cm.

11. A molded product, characterized in that The thermoplastic resin composition is formed from the thermoplastic resin composition according to any one of claims 1 to 10.

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