Thermoplastic resin composition and molded article manufactured using same

Abstract

The present invention relates to a thermoplastic resin composition and a molded article manufactured using same, the composition, on the basis of 100 parts by weight of a base resin that comprises (A) 25-40 wt% of a butadiene-based rubber-modified aromatic vinyl-vinyl cyanide graft copolymer and (B) 60-75 wt% of an aromatic vinyl-vinyl cyanide copolymer that contains 30-35 wt% of a vinyl cyanide compound-derived component, comprising (C) 1-10 parts by weight of an oil containing a triglyceride structure.

Description

Thermoplastic resin composition and molded article manufactured therefrom

[0001] It relates to a thermoplastic resin composition and a molded article manufactured therefrom.

[0002] Styrenic resins, represented by acrylonitrile-butadiene-styrene copolymer (ABS) resin, are widely used in various applications due to their excellent formability, mechanical properties, appearance, and secondary processability.

[0003] Molded products manufactured using styrene resins can be widely applied to various products requiring painting / unpainting, such as various interior / exterior materials for automobiles and / or electronic devices, and can also be applied to products requiring high impact strength, such as helmets.

[0004] In order for styrene resins to be used in helmets and other applications, high impact strength is required even at low temperatures, and methods are being used to increase the content of impact modifiers or increase the molecular weight of the resin to improve low-temperature impact strength.

[0005] However, there is a problem that as the content of the impact modifier increases or the molecular weight of the resin increases, the moldability of the resin decreases, and as a result, the appearance performance of the molded product deteriorates.

[0006] Therefore, there is a need for development of a thermoplastic resin composition having excellent low-temperature impact resistance without deterioration of other properties.

[0007] Provided are a thermoplastic resin composition having excellent fluidity, appearance properties, and impact resistance at low temperatures, and having reduced odor, and a molded article manufactured therefrom.

[0008] According to one embodiment, a thermoplastic resin composition is provided, comprising (C) 1 to 10 parts by weight of an oil comprising a triglyceride structure, for 100 parts by weight of a base resin comprising (A) 25 to 40 wt% of a butadiene-based rubber-modified aromatic vinyl-vinyl cyanide graft copolymer, and (B) 60 to 75 wt% of an aromatic vinyl-vinyl cyanide copolymer having a cyanide compound-derived component content of 30 to 35 wt%.

[0009] The above (A) butadiene-based rubber-modified aromatic vinyl-vinyl cyanide graft copolymer may have a core-shell structure including a core made of a butadiene-based rubber polymer, and a shell formed by graft polymerization of an aromatic vinyl compound and a vinyl cyanide compound onto the core.

[0010] The average particle diameter of the above butadiene-based rubber polymer may be 250 to 350 nm.

[0011] The above (A) butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer may be an acrylonitrile-butadiene-styrene graft copolymer.

[0012] The above (B) aromatic vinyl-vinyl cyanide copolymer may contain 65 to 70 wt% of an aromatic vinyl compound-derived component based on 100 wt%.

[0013] The above (B) aromatic vinyl-vinyl cyanide copolymer may have a weight average molecular weight of 100,000 to 300,000 g / mol.

[0014] The above (B) aromatic vinyl-vinyl cyanide copolymer may be a styrene-acrylonitrile copolymer.

[0015] The oil comprising the above (C) triglyceride structure may comprise a structure represented by the following chemical formula 1:

[0016] [Chemical Formula 1]

[0017]

[0018] In the above chemical formula 1, R1, R2, and R3 may be the same or different from each other, and R1, R2, and R3 are each a C4 to C30 aliphatic hydrocarbon group that is saturated or unsaturated, and any carbon in the aliphatic hydrocarbon group may be substituted with a hydroxy group.

[0019] The oil comprising the above (C) triglyceride structure may be at least one of castor oil, palm oil, soybean oil, canola oil, corn oil, rapeseed oil, sunflower oil, grapeseed oil, safflower oil, cottonseed oil, sesame oil, rice bran oil, palm kernel oil, camellia oil, olive oil, coconut oil, beef tallow, lard, safflower oil, fish oil, whale oil, tuna oil, and waste oils thereof.

[0020] The oil comprising the above (C) triglyceride structure may comprise a structure represented by the following chemical formula 2:

[0021] [Chemical Formula 2]

[0022]

[0023] The thermoplastic resin composition may further include at least one additive selected from among a nucleating agent, a coupling agent, a filler, a plasticizer, a lubricant, a release agent, an antibacterial agent, a heat stabilizer, an antioxidant, an ultraviolet stabilizer, a flame retardant, a colorant, and an impact modifier.

[0024] Meanwhile, according to another embodiment, a molded article manufactured from the thermoplastic resin composition described above is provided.

[0025] The above molded product may have an Izod impact strength of 20 kgf·cm / cm or more measured on a 1 / 4 inch thick specimen at -30°C according to ASTM D256.

[0026] The above molded product may have a melt flow index of 5.0 g / 10 min or more as measured according to ASTM D1238 under conditions of 220°C and 10 kg.

[0027] A thermoplastic resin composition according to one embodiment and a molded article using the same have excellent fluidity, appearance properties, and impact resistance at low temperatures, and have a reduced odor.

[0028] Figure 1 shows the evaluation criteria for the appearance characteristics of the specimens of the example.

[0029] Hereinafter, embodiments of the present invention will be described in detail. However, these are presented as examples and are not intended to limit the present invention, which is defined solely by the appended claims.

[0030] Unless specifically stated herein, “copolymerization” means block copolymerization, random copolymerization, and graft copolymerization, and “copolymer” means block copolymer, random copolymer, and graft copolymer.

[0031] Unless otherwise specified herein, the average particle size of a rubber polymer is a volume average diameter and refers to the Z-average particle size measured using a dynamic light scattering analyzer.

[0032] Unless otherwise specified herein, the weight average molecular weight is measured by dissolving a powder sample in an appropriate solvent and using Agilent Technologies' 1200 series Gel Permeation Chromatography (GPC) (Shodex polystyrene is used as the standard sample).

[0033] According to one embodiment, the thermoplastic resin composition of the present invention comprises (A) 25 to 40 wt% of a butadiene-based rubber-modified aromatic vinyl-vinyl cyanide graft copolymer, and (B) 60 to 75 wt% of an aromatic vinyl compound-vinyl cyanide copolymer having a cyanide compound-derived component content of 30 to 35 wt%, and (C) 1 to 10 wt% of an oil comprising a triglyceride structure, relative to 100 wt% of a base resin.

[0034] Hereinafter, each component included in the thermoplastic resin composition will be described in detail.

[0035] (A) Butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer

[0036] In one embodiment, (A) the butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer imparts excellent impact resistance to the thermoplastic resin composition.

[0037] In one embodiment, the (A) butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer may have a core-shell structure in which a core is made of a butadiene-based rubber polymer component and a shell is formed by graft polymerization of an aromatic vinyl compound and a cyanide vinyl compound at the center thereof.

[0038] According to one embodiment, the (A) butadiene-based rubber-modified aromatic vinyl-vinyl cyanide graft copolymer can be manufactured by adding an aromatic vinyl compound and a vinyl cyanide compound to a butadiene-based rubber polymer and performing graft polymerization through a conventional polymerization method such as emulsion polymerization or bulk polymerization.

[0039] The above butadiene-based rubber polymer may be selected from the group consisting of butadiene rubber polymer, butadiene-styrene rubber polymer, butadiene-acrylonitrile rubber polymer, butadiene-acrylate rubber polymer, and mixtures thereof.

[0040] The above aromatic vinyl compound may be selected from the group consisting of styrene, α-methylstyrene, p-methylstyrene, pt-butylstyrene, 2,4-dimethylstyrene, chlorostyrene, vinyltoluene, vinylnaphthalene, and mixtures thereof.

[0041] The above vinyl cyanide compound may be selected from the group consisting of acrylonitrile, methacrylonitrile, fumaronitrile and mixtures thereof.

[0042] The average particle size of the butadiene-based rubber polymer of the above (A) butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer may be 250 to 350 nm, for example, 250 to 300 nm, for example, 300 to 350 nm. When the above range is satisfied, the thermoplastic resin composition can exhibit excellent impact resistance and appearance properties.

[0043] With respect to 100 wt% of the above (A) butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer, the butadiene-based rubber polymer may be included in an amount of 40 to 70 wt%, for example, 40 to 60 wt%, for example, 50 to 60 wt%. Meanwhile, the weight ratio of the aromatic vinyl compound and the cyanide vinyl compound graft-polymerized onto the core composed of the butadiene-based rubber polymer component may be 6:4 to 8:2.

[0044] In one embodiment, the (A) butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer may be an acrylonitrile-butadiene-styrene graft copolymer.

[0045] The above (A) butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer may be included in an amount of 25 to 40 wt%, for example, 30 to 40 wt%, for example, 35 to 40 wt%, for example, 25 to 30 wt%, for example, 30 to 35 wt%, based on 100 wt% of the base resin. In the above weight % range, the thermoplastic resin composition may have excellent impact resistance and a balance of all physical properties.

[0046] (B) Aromatic vinyl-vinyl cyanide copolymer having a content of 30 to 35 wt% of a vinyl cyanide compound-derived component.

[0047] In one embodiment, (B) an aromatic vinyl-vinyl cyanide copolymer having a content of 30 to 35 wt% of a vinyl cyanide compound-derived component can improve the compatibility of each component of a thermoplastic resin composition. In addition, the present invention can particularly improve the chemical resistance and heat resistance of a thermoplastic resin composition through an aromatic vinyl-vinyl cyanide copolymer containing a high content of 30 to 35 wt% of a vinyl cyanide compound-derived component.

[0048] In one embodiment, the aromatic vinyl-vinyl cyanide copolymer having a content of 30 to 35 wt% of the (B) vinyl cyanide compound-derived component may have a weight average molecular weight of 100,000 g / mol or more, for example, 110,000 g / mol or more, for example, 120,000 g / mol or more, and may be, for example, 300,000 g / mol or less, for example, 200,000 g / mol or less, and may be, for example, 100,000 to 300,000 g / mol, for example, 120,000 to 200,000 g / mol.

[0049] In one embodiment, the aromatic vinyl-vinyl cyanide copolymer having a content of 30 to 35 wt% of the (B) cyanide vinyl compound-derived component can be produced by a conventional polymerization method such as emulsion polymerization, suspension polymerization, solution polymerization, or bulk polymerization of the aromatic vinyl compound and the cyanide vinyl compound.

[0050] The above aromatic vinyl compound may be selected from the group consisting of styrene, α-methylstyrene, p-methylstyrene, pt-butylstyrene, 2,4-dimethylstyrene, chlorostyrene, vinyltoluene, vinylnaphthalene, and mixtures thereof.

[0051] The above vinyl cyanide compound may be selected from the group consisting of acrylonitrile, methacrylonitrile, fumaronitrile and mixtures thereof.

[0052] The aromatic vinyl-vinyl cyanide copolymer having a content of 30 to 35 wt% of a component derived from a cyanide vinyl compound (B) may contain 65 to 70 wt% of the aromatic vinyl compound-derived component based on 100 wt%.

[0053] In one embodiment, the aromatic vinyl-vinyl cyanide copolymer having a content of 30 to 35 wt% of the (B) vinyl cyanide compound-derived component may be a styrene-acrylonitrile copolymer (SAN) having an acrylonitrile content of 30 to 35 wt% based on 100 wt%.

[0054] In one embodiment, the aromatic vinyl compound-vinyl cyanide copolymer having a content of 30 to 35 wt% of the (B) cyanide vinyl compound-derived component may be included in an amount of 60 to 75 wt%, for example, 60 to 70 wt%, for example, 70 to 75 wt%, for example, 60 to 65 wt%, for example, 65 to 70 wt%, based on 100 wt% of the base resin. In the above wt% range, the thermoplastic resin composition may have excellent chemical resistance and heat resistance.

[0055] (C) Oil containing triglyceride structure

[0056] In one embodiment, the oil comprising (C) a triglyceride structure can improve the fluidity of the thermoplastic resin composition, the impact resistance at low temperatures, and reduce the generation of an unpleasant odor.

[0057] The oil comprising the above (C) triglyceride structure may comprise a structure represented by the following chemical formula 1:

[0058] [Chemical Formula 1]

[0059]

[0060] In the above chemical formula 1, R1, R2, and R3 may be the same or different from each other, and R1, R2, and R3 are each a C4 to C30 aliphatic hydrocarbon group that is saturated or unsaturated, and any carbon in the aliphatic hydrocarbon group may be substituted with a hydroxy group.

[0061] In one embodiment, R1, R2, and R3 of the above chemical formula 1 may each be a C12 to C20 aliphatic hydrocarbon group that is saturated or unsaturated.

[0062] In one embodiment, the oil comprising the (C) triglyceride structure may comprise a structure represented by the following chemical formula 2:

[0063] [Chemical Formula 2]

[0064]

[0065] The oil comprising the above (C) triglyceride structure may be a natural oil or a synthetic oil, and may be, for example, a natural oil.

[0066] In one embodiment, the natural oil may be a vegetable oil or an animal oil.

[0067] In one embodiment, the oil comprising the (C) triglyceride structure may be at least one of castor oil, palm oil, soybean oil, canola oil, corn oil, rapeseed oil, sunflower oil, grapeseed oil, safflower oil, cottonseed oil, sesame oil, rice bran oil, palm kernel oil, camellia oil, olive oil, coconut oil, beef tallow, lard, safflower oil, fish oil, whale oil, tuna oil, and waste oils thereof.

[0068] In one embodiment, the oil comprising the (C) triglyceride structure may be castor oil.

[0069] The oil containing the above (C) triglyceride structure may be included in an amount of 1 to 10 parts by weight, for example, 1 to 7 parts by weight, for example, 1 to 5 parts by weight, for example, 1 to 3 parts by weight, based on 100 parts by weight of the base resin. Within the above range of parts by weight, the low-odor properties and fluidity of the thermoplastic resin composition containing it may be further improved.

[0070] (D) Additives

[0071] A thermoplastic resin composition according to one embodiment may further include, in addition to the components (A) to (C), one or more additives required depending on the final use of the thermoplastic resin composition.

[0072] Specifically, the additive may be at least one selected from among a nucleating agent, a coupling agent, a filler, a plasticizer, a lubricant, a release agent, an antibacterial agent, a heat stabilizer, an antioxidant, an ultraviolet stabilizer, a flame retardant, a colorant, and an impact modifier.

[0073] These additives may be appropriately included within a range that does not impair the physical properties of the thermoplastic resin composition, and may be included, for example, in an amount of 20 parts by weight or less per 100 parts by weight of the base resin, but are not limited thereto.

[0074] The thermoplastic resin composition according to the present invention can be manufactured by a known method for manufacturing a thermoplastic resin composition.

[0075] For example, the thermoplastic resin composition according to the present invention can be manufactured in the form of pellets by mixing the components of the present invention and other additives and then melting / mixing them in an extruder.

[0076] A molded article according to one embodiment of the present invention can be manufactured from the thermoplastic resin composition described above using a known molding method. For example, the molded article can be manufactured using methods such as extrusion molding and injection molding, but is not limited thereto.

[0077] The above molded product may have a notched Izod impact strength of 20 kgf·cm / cm or more, for example, 21 kgf·cm / cm or more, for example, 22 kgf·cm / cm or more, measured on a 1 / 4 inch thick specimen at -30°C according to ASTM D256.

[0078] The above molded product may have a melt flow index of 5.0 g / 10 min or more as measured according to ASTM D1238 under conditions of 220°C and 10 kg.

[0079] Hereinafter, the present invention will be described in more detail through examples and comparative examples. However, the following examples and comparative examples are for the purpose of explanation and are not intended to limit the present invention.

[0080] Examples 1 to 3 and Comparative Examples 1 to 4

[0081] The thermoplastic resin compositions of Examples 1 to 3 and Comparative Examples 1 to 4 were prepared according to the component content ratios described in Table 1 below.

[0082] In Table 1, (A), (B), and (B') are included in the base resin and are expressed in weight % based on the total weight of the base resin, and (C) and (C') are added to the base resin and are expressed in weight parts based on 100 weight parts of the base resin.

[0083] The components listed in Table 1 were dry mixed and quantitatively and continuously fed into the feed section of a twin-screw extruder (L / D=44, Φ=45 mm) to melt / knead. Subsequently, the pelletized thermoplastic resin composition was dried at about 80°C for about 4 hours through the twin-screw extruder, and then injection-molded specimens for property evaluation were manufactured using a 120-ton injection molding machine with a cylinder temperature of about 240°C and a mold temperature of about 60°C.

[0084] Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 (A) 37302737374730 (B) 63707363-5370 (B') ----63-- (C) 137---- (C') ------ 3

[0085] The description of each composition listed in Table 1 above is as follows: (A) Butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer

[0086] Acrylonitrile-butadiene-styrene graft copolymer (Lotte Chemical Co.) comprising a core (average particle size: about 300 nm) made of a butadiene rubber polymer and a shell formed by graft polymerization of acrylonitrile and styrene (acrylonitrile: styrene weight ratio = about 2.5: about 7.5) onto the core (about 58 wt%)

[0087] (B) Aromatic vinyl-vinyl cyanide copolymer

[0088] A styrene-acrylonitrile copolymer having a weight average molecular weight of about 120,000 g / mol, copolymerized from a monomer mixture containing about 32 wt% acrylonitrile and about 68 wt% styrene (Lotte Chemical Co., Ltd.)

[0089] (B') Aromatic vinyl-vinyl cyanide copolymer

[0090] A styrene-acrylonitrile copolymer (Lotte Chemical Co., Ltd.) containing approximately 28 wt% of acrylonitrile-derived components and having a weight-average molecular weight of approximately 340,000 g / mol.

[0091] (C) Oil containing triglyceride structure

[0092] Castor oil (Lotte Wellfood Co.) with a melting point of approximately -10°C, a specific gravity of approximately 0.95 measured at 25°C, and a viscosity of approximately 7 Poise measured at 25°C.

[0093] (C') Active agent

[0094] Hi-Lube (Shinwon Chemical) containing ethylene bis-stearamide

[0095]

[0096] Experimental example

[0097] The experimental results are shown in Table 2 below.

[0098] (1) Room temperature impact resistance (unit: kgf·cm / cm): Notched Izod impact strength was measured on 1 / 4 inch thick specimens according to ASTM D256 at 25℃.

[0099] (2) Low-temperature impact resistance (unit: kgf·cm / cm): Notched Izod impact strength was measured on 1 / 4 inch thick specimens according to ASTM D256 at -30℃.

[0100] (3) Fluidity (unit: g / 10min)

[0101] The melt flow index (MI) was measured according to ASTM D1238 at 220℃ and 10kg.

[0102] (4) Low-odor characteristics (unit: grade)

[0103] According to VDA 270 TEST Version B3, 20 g of a thermoplastic resin composition pellet sample was placed in a 1 L container and aged at 80°C for 2 hours. Then, five experienced evaluators smelled the sample and evaluated the odor grade according to the grade criteria below, and the average grade was calculated.

[0104] The grading criteria are as follows:

[0105] Grade 1 - Smell is not perceptible

[0106] Grade 2 - The smell is perceptible but not unpleasant.

[0107] Grade 3 - The smell is distinctly perceptible, but not unpleasant.

[0108] Grade 4 - Discomfort

[0109] Grade 5 - Very unpleasant

[0110] Grade 6 - Unbearably unpleasant

[0111] (5) Appearance characteristics

[0112] The appearance characteristics were sensorily evaluated based on the presence or absence of flow marks on 50 mm x 200 mm x 2 mm sized specimens injection-molded using a mold having a pin-point gate structure. The criteria for evaluating the appearance characteristics are shown in Fig. 1. If no flow marks occurred at the end opposite the gate of the specimen as shown in Fig. 1, the appearance characteristics were evaluated as excellent (O), and if flow marks occurred at the end of the specimen, the appearance characteristics were evaluated as poor (X).

[0113] (6) Gas generation amount (unit: ppm)

[0114] A 4g sample of a thermoplastic resin composition pellet was placed in a Petri dish, covered with a glass lid, and heated on a 250℃ hot plate for 2 hours. After cooling, the weight change of the Petri dish glass lid was divided by the sample weight to measure the amount of volatile gas generated.

[0115] Lost and Found Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Room Temperature Impact Strength 48484842445240 Low Temperature Impact Strength 22222215172415 Melt Flow Index 5.56.59.04.02.03.56.0 Odor Grade 3.03.02.54.04.04.04.0 Appearance Characteristics OOOOXXO Gas Emission Amount 5,3005,7006,0005,000--7,000

[0116] From the above Tables 1 and 2, it can be seen that by using the butadiene-based rubber-modified aromatic vinyl-vinyl cyanide graft copolymer, the aromatic vinyl-vinyl cyanide copolymer having a content of 30 to 35 wt% of a vinyl cyanide compound-derived component, and the oil containing a triglyceride structure in an optimal amount as in Examples 1 to 3, the impact resistance, fluidity, appearance properties, and low-odor properties can all be excellent, and in particular, the impact resistance at low temperatures can also be excellent. Although the present invention has been described above through preferred embodiments as described above, the present invention is not limited thereto, and those skilled in the art will readily understand that various modifications and variations are possible without departing from the concept and scope of the following claims.

Claims

1. (A) 25 to 40 wt% of a butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer, and (B) 100 parts by weight of a base resin comprising 60 to 75 wt% of an aromatic vinyl-vinyl cyanide copolymer having a content of 30 to 35 wt% of a component derived from a cyanide compound. (C) A thermoplastic resin composition comprising 1 to 10 parts by weight of an oil having a triglyceride structure.

2. In paragraph 1, The above (A) butadiene-based rubber-modified aromatic vinyl-vinyl cyanide graft copolymer is a thermoplastic resin composition having a core-shell structure including a core made of a butadiene-based rubber polymer, and a shell formed by graft polymerization of an aromatic vinyl compound and a vinyl cyanide compound onto the core.

3. In paragraph 1 or 2, A thermoplastic resin composition, wherein the average particle diameter of the butadiene-based rubber polymer is 250 to 350 nm.

4. In any one of paragraphs 1 to 3, A thermoplastic resin composition, wherein the above (A) butadiene-based rubber-modified aromatic vinyl-cyanide vinyl graft copolymer is an acrylonitrile-butadiene-styrene graft copolymer.

5. In any one of paragraphs 1 to 4, A thermoplastic resin composition, wherein the above (B) aromatic vinyl-vinyl cyanide copolymer comprises 65 to 70 wt% of an aromatic vinyl compound-derived component based on 100 wt%.

6. In any one of paragraphs 1 to 5, A thermoplastic resin composition wherein the above (B) aromatic vinyl-vinyl cyanide copolymer has a weight average molecular weight of 100,000 to 300,000 g / mol.

7. In any one of paragraphs 1 to 6, A thermoplastic resin composition wherein the above (B) aromatic vinyl-vinyl cyanide copolymer is a styrene-acrylonitrile copolymer.

8. In any one of paragraphs 1 to 7, The oil comprising the above (C) triglyceride structure is a thermoplastic resin composition comprising a structure represented by the chemical formula 1: [Chemical Formula 1] In the above chemical formula 1, R1, R2, and R3 may be the same or different from each other, and R1, R2, and R3 are each a saturated or unsaturated C4 to C30 aliphatic hydrocarbon group, and any carbon in the aliphatic hydrocarbon group is substituted with a hydroxy group.

9. In any one of paragraphs 1 to 8, A thermoplastic resin composition, wherein the oil containing the above (C) triglyceride structure is at least one of castor oil, palm oil, soybean oil, canola oil, corn oil, rapeseed oil, sunflower oil, grapeseed oil, safflower oil, cottonseed oil, sesame oil, rice bran oil, palm kernel oil, camellia oil, olive oil, coconut oil, beef tallow, lard, safflower oil, fish oil, whale oil, tuna oil, and waste oils thereof.

10. In any one of paragraphs 1 to 9, The oil comprising the above (C) triglyceride structure is a thermoplastic resin composition comprising a structure represented by the following chemical formula 2: [Chemical Formula 2] 11. In any one of paragraphs 1 to 10, A thermoplastic resin composition further comprising at least one additive selected from among a nucleating agent, a coupling agent, a filler, a plasticizer, a lubricant, a release agent, an antibacterial agent, a heat stabilizer, an antioxidant, an ultraviolet stabilizer, a flame retardant, a colorant, and an impact modifier.

12. A molded product manufactured from a thermoplastic resin composition according to any one of claims 1 to 11.

13. In paragraph 12, The above molded product is a molded product having an Izod impact strength of 20 kgf·cm / cm or more measured on a 1 / 4 inch thick specimen at -30℃ according to ASTM D256 standard.

14. In paragraph 12 or 13, The above molded product is a molded product having a melt flow index of 5.0 g / 10 min or more as measured according to ASTM D1238 under conditions of 220°C and 10 kg.

Images