KR20160022257A - Thermoplastic resin composition and molded article for exterior parts of vehicle using the same - Google Patents
Thermoplastic resin composition and molded article for exterior parts of vehicle using the same Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L21/00—Compositions of unspecified rubbers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/12—Copolymers of styrene with unsaturated nitriles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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Abstract
Description
TECHNICAL FIELD The present invention relates to a thermoplastic resin composition and a molded article for an automobile exterior using the same.
In recent years, demand for high rigidity thermoplastic resins for automobile exterior parts such as body panels and spoilers has been greatly increased due to the trend toward lightweight automobiles. When the filler is contained in a high content in order to realize high rigidity of the thermoplastic resin, the rigidity, dimensional stability and heat resistance are improved, but the impact resistance is greatly reduced and the appearance of the injection molded article is degraded .
In order to improve the impact resistance of a polycarbonate resin, impact resistance is improved when a linear acrylic impact modifier is used, but peeling occurs in an injection molded article due to a decrease in compatibility with a polycarbonate resin, There is a problem in that a problem occurs. In addition, when glass fiber is used for the purpose of realizing high rigidity and dimensional stability, the appearance of the injection molded article due to the projecting of the glass fiber is largely deteriorated. When wollastonite or barium sulfate (BaSO 4 ) is used, But there is a disadvantage in that it is not effective in improving rigidity and dimensional stability.
The present invention provides a thermoplastic resin composition excellent in rigidity, dimensional stability and appearance of an injection molded article, and a molded article for automobile exterior use using the same.
In order to achieve the above object, the thermoplastic resin composition according to the present invention comprises a base resin comprising (A1) a polycarbonate resin, (A2) a polyester resin and (A3) a vinyl cyanide compound-aromatic vinyl compound copolymer, B) an impact modifier and (C) a filler, wherein the impact modifier (B) is a core-shell structure comprising a rubbery polymer selected from the group consisting of diene rubber, acrylic rubber, silicone rubber, .
The thermoplastic resin composition according to the present invention may further comprise a polyolefin wax (D), and the polyolefin wax (D) may be a polyethylene wax.
The cyanide vinyl compound-aromatic vinyl compound copolymer (A3) may be copolymerized from a mixture containing 1 to 30% by weight of a vinyl cyanide compound.
The thermoplastic resin composition according to the present invention may contain 3 to 15 parts by weight of the impact modifier (B) relative to 100 parts by weight of the base resin, and the average particle size of the impact modifier (B) may be 100 to 400 nm .
Wherein the core of the impact modifier (B) comprises a rubbery polymer selected from the group consisting of a diene rubber, an acrylic rubber, a silicone rubber, and a combination thereof, the shell comprising styrene, Alkyl substituted styrene, (meth) acrylonitrile, (meth) acrylate, and alkyl (meth) acrylate, wherein the alkyl may be alkyl of 1 to 10 carbon atoms . The content of the impact modifier (B) based on the weight of the core component and the shell component may be 2: 8 to 8: 2.
The thermoplastic resin composition according to the present invention may further comprise 0.1 to 1 part by weight of the polyolefin wax (D) based on 100 parts by weight of the base resin.
The thermoplastic resin composition according to the present invention may include 10 to 40 parts by weight of the filler (C) relative to 100 parts by weight of the base resin.
The filler (C) may be talc, the talc is in the form of a plate, and the aspect ratio may be 4 to 50. [
The polyester resin (A2) may be a polyethylene terephthalate resin.
Wherein the base resin comprises 50 to 85% by weight of the polycarbonate resin (A1), 10 to 45% by weight of the polyester resin (A2), 1 to 8% by weight of the cyanide vinyl compound-aromatic vinyl compound copolymer (A3) .
The automotive exterior molded article using the thermoplastic resin composition according to the present invention preferably has an Izod impact strength of 7 to 10 kgf · cm / cm measured by ASTM D256, a flexural modulus of at least 40,000 kgf / cm 2 measured by ASTM D790 , And a thermal expansion coefficient measured by ASTM E831 of 40 to 45 m / (m 占 폚).
The present invention provides a thermoplastic resin composition excellent in rigidity, dimensional stability and appearance of an injection molded article, and a molded article for automobile exterior use using the same.
Hereinafter, the thermoplastic resin composition according to the present invention can be better understood by the following examples, and the following examples are for illustrative purposes of the present invention, and the scope of protection defined by the appended claims It is not intended to be limiting.
TECHNICAL FIELD The present invention relates to a thermoplastic resin composition, and more specifically, to a thermoplastic resin composition optimized for molded articles for automobile exterior applications.
First, the base resin of the thermoplastic resin composition of the present invention comprises (A1) a polycarbonate resin, (A2) a polyester resin, and (A3) a vinyl cyanide compound-aromatic vinyl compound copolymer.
(A1) Polycarbonate resin
The polycarbonate resin (A1) according to one embodiment of the present invention can be prepared by reacting a diphenol represented by the following formula (1) with a compound selected from the group consisting of phosgene, a halogen acid ester, a carbonate ester and a combination thereof .
In Formula 1, A represents a single bond, a substituted or unsubstituted C1 to C30 linear or branched alkylene group, a substituted or unsubstituted C2 to C5 alkenylene group, a substituted or unsubstituted C2 to C5 An alkylidene group, a substituted or unsubstituted C 1 to C 30 linear or branched haloalkylene group, a substituted or unsubstituted C 5 to C 6 cycloalkylene group, a substituted or unsubstituted C 5 to C 6 cycloalkenylene group, A substituted or unsubstituted C5 to C10 cycloalkylidene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C1 to C20 linear or branched alkoxysilyl group, a halogen acid ester group, CO, S and SO 2 , each of R 1 and R 2 is independently a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C6 to C30 aryl group C1 to C30 alkyl group, C1 to C30 haloalkyl group, C6 to C30 aryl group, C1 to C20 alkyl group, C1 to C30 alkyl group, An alkoxy group of 1 to 6 carbon atoms, and a combination thereof.
The diphenols represented by the above formula (1) may be composed of two or more of them to form a repeating unit of a polycarbonate resin. Specific examples of the diphenols include 4,4'-dihydroxydiphenyl, 2,2-bis (4-hydroxyphenyl) propane (also called bisphenol-A), 2,4- Hydroxyphenyl) -2-methylbutane, bis (4-hydroxyphenyl) methane, 1,1-bis (4-hydroxyphenyl) cyclohexane, 2,2- Propane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane, 2,2-bis Bis (3,5-dibromo-4-hydroxyphenyl) propane, bis (4-hydroxyphenyl) sulfoxide, bis Phenyl) ketone, and bis (4-hydroxyphenyl) ether.
Among the above diphenols, preferred are 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (3-methyl- (3,5-dichloro-4-hydroxyphenyl) propane or 1,1-bis (4-hydroxyphenyl) cyclohexane is preferably used, , It is effective to use 2,2-bis (4-hydroxyphenyl) propane.
The polycarbonate resin (A1) preferably has a weight average molecular weight of 10,000 to 200,000 g / mol as measured by gel permeation chromatography (GPC) using polystyrene as a standard sample, more preferably , And 10,000 to 50,000 g / mol. When the weight average molecular weight of the polycarbonate resin (A1) is within the above range, excellent impact resistance and fluidity can be obtained. In order to satisfy the desired fluidity, two or more kinds of polycarbonate resins having different weight average molecular weights may be mixed and used.
The polycarbonate resin (A1) may be a mixture of copolymers prepared from two or more kinds of diphenols. The polycarbonate resin (A1) may be a linear polycarbonate resin, a branched polycarbonate resin, or a polyester carbonate copolymer resin.
Examples of the linear polycarbonate resin include a bisphenol-A polycarbonate resin and the like. Examples of the branched polycarbonate resin include those prepared by reacting a polyfunctional aromatic compound such as trimellitic anhydride, trimellitic acid and the like with a diphenol and a carbonate. The polyfunctional aromatic compound may be contained in an amount of 0.05 to 2 mol% based on the total amount of the branched polycarbonate resin. Examples of the polyester carbonate copolymer resin include those prepared by reacting a bifunctional carboxylic acid with a diphenol and a carbonate. As the carbonate, diaryl carbonate such as diphenyl carbonate, ethylene carbonate and the like can be used.
(A2) Polyester resin
The polyester resin (A2) according to one embodiment of the present invention is preferably an aromatic polyester resin using a resin condensed from terephthalic acid or a terephthalic acid alkyl ester and a glycol component having 2 to 10 carbon atoms. Here, the alkyl means C1 to C10 alkyl. The aromatic polyester resin is obtained by mixing polyethylene terephthalate resin, polytrimethylene terephthalate resin, polybutylene terephthalate resin, polyhexamethylene terephthalate resin, polycyclohexanedimethylene terephthalate resin or some other monomer in these resins It is preferable to use a non-crystalline modified polyester resin, and more preferably a polyethylene terephthalate resin, a polytrimethylene terephthalate resin, a polybutylene terephthalate resin or an amorphous polyethylene terephthalate resin, , It is effective to use a polyethylene terephthalate resin.
Here, the polyethylene terephthalate resin is a linear resin produced by condensation polymerization of terephthalic acid and ethylene glycol, and includes both a polyethylene terephthalate homopolymer or a polyethylene terephthalate copolymer.
The polyethylene terephthalate copolymer may be an amorphous polyethylene terephthalate copolymer containing 1,4-cyclohexane dimethanol (CHDM) as a copolymerization component, and may further contain a part of the ethylene glycol component 1,4-cyclohexanedimethanol. ≪ / RTI >
The polyethylene terephthalate resin preferably has an intrinsic viscosity [?] Of 0.6 to 1 dl / g, more preferably 0.7 to 0.9 dl / g, as measured at 25 占 폚 in an o-chlorophenol solvent. When the intrinsic viscosity of the polyethylene terephthalate resin is within the above range, there is an advantage that the mechanical strength and the moldability are excellent.
(A3) A vinyl cyanide compound-aromatic vinyl compound copolymer
The copolymer (A3) of a vinyl cyanide-aromatic vinyl compound according to an embodiment of the present invention has a weight average molecular weight of 70,000 to 400,000 g measured by gel permeation chromatography (GPC) using polystyrene as a reference sample / mol, and more preferably 100,000 to 200,000 g / mol.
The vinyl cyanide compound may be selected from the group consisting of acrylonitrile, methacrylonitrile, fumaronitrile, and combinations thereof.
The aromatic vinyl compound may be selected from the group consisting of styrene,? -Methylstyrene, halogen or alkyl-substituted styrene, and combinations thereof.
The cyanide vinyl compound-aromatic vinyl compound copolymer (A3) may further include at least one compound which is a copolymerizable monomer and can be copolymerized with the aromatic vinyl compound. Examples of the compound copolymerizable with the aromatic vinyl compound include, but are not limited to, methacrylic acid alkyl esters, acrylic acid alkyl esters, maleic anhydride, alkyl or phenyl nucleus-substituted maleimide, or mixtures thereof. Wherein said alkyl means C1 to C8 alkyl.
The copolymer (A3) of the vinyl cyanide-aromatic vinyl compound is preferably copolymerized from a mixture containing 1 to 30% by weight of a vinyl cyanide compound, more preferably 1 to 25% by weight, most preferably 10 To 25% by weight, based on the total weight of the composition. When the content of the vinyl cyanide compound is within the above range, the phase of the polyester resin in the thermoplastic resin composition of the present invention is stably distributed so that the impact resistance is improved and the appearance can be remarkably improved.
The cyanide vinyl compound-aromatic vinyl compound copolymer (A3) may preferably be a styrene-acrylonitrile copolymer.
Wherein the base resin comprises 50 to 85% by weight of the polycarbonate resin (A1), 10 to 45% by weight of the polyester resin (A2), 1 to 8% by weight of the cyanide vinyl compound-aromatic vinyl compound copolymer (A3) , More preferably 10 to 35% by weight of the polycarbonate resin (A1), 10 to 35% by weight of the polyester resin (A2), the cyanide vinyl compound-aromatic vinyl compound copolymer (A3) 2 to 6% by weight.
When the content ratio is out of the range, there is a problem that a thermoplastic resin composition having properties of high stiffness and excellent appearance due to mixing with the impact modifier (B) and the filler (C) of the present invention, It is advantageous that not only the compatibility is improved but also the impact resistance and the heat resistance are improved.
(B) impact modifier
The thermoplastic resin composition of the present invention comprises an impact modifier (B), and the impact modifier (B) is a core-shell modifier comprising a rubbery polymer selected from the group consisting of diene rubber, acrylic rubber, silicone rubber, Shell structure.
Here, the impact modifier (B) is a rubbery polymer-modified graft copolymer, which is obtained by forming a rubbery polymer selected from the group consisting of a diene rubber, an acrylic rubber, a silicone rubber, and a combination thereof as a core and then graft copolymerizing By graft copolymerizing a monomer selected from the group consisting of styrene, alkyl substituted styrene, (meth) acrylonitrile, (meth) acrylate, and alkyl (meth) acrylate to the rubbery polymer core to form a shell . Wherein said alkyl means alkyl of 1 to 10 carbon atoms.
The diene rubber may be polymerized from butadiene, isoprene, etc., among which butadiene may preferably be used.
The acrylic rubber may be polymerized from methyl acrylate, ethyl acrylate, n-propyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate, hexyl methacrylate, 2-ethylhexyl methacrylate and the like.
The silicone rubber may be prepared from a cyclosiloxane and may be, for example, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, trimethyltriphenylcyclotrisiloxane, tetramethyltetra Phenylcyclotetrasiloxane, and octaphenylcyclotetrasiloxane can be polymerized from at least one member selected from the group consisting of:
The content of the impact modifier (B) based on the weight of the core component and the shell component may be 2: 8 to 8: 2, preferably 3: 7 to 7: 3. If the content ratio is out of the above range, the impact resistance may be lowered or the appearance of the molded article may be deteriorated.
The impact modifier (B) is preferably 3 to 15 parts by weight, more preferably 4 to 12 parts by weight, based on 100 parts by weight of the base resin. If the content is out of the above range, the effect of increasing the impact resistance is insignificant, and cracking of the molded article may occur during injection molding.
The average particle size of the impact modifier (B) is preferably 100 to 400 nm, more preferably 120 to 380 nm. The deterioration of the impact resistance due to the filler (C) can be drastically improved within the above range.
(C) a filler
The thermoplastic resin composition of the present invention may include a filler (C), preferably a talc having a plate shape as a filler (C), and it is preferable that a talc having an aspect ratio of 4 to 50 is used, It is effective in contrast appearance and physical property balance.
The filler (C) is preferably 10 to 40 parts by weight, more preferably 15 to 35 parts by weight, based on 100 parts by weight of the base resin. When the above range is satisfied, the effect of improving the appearance can be maximized.
(D) a polyolefin wax
The thermoplastic resin composition of the present invention preferably further comprises a polyolefin wax (D), and the polyolefin wax (D) is preferably a polyethylene wax. Addition of the polyolefin wax (D) can significantly reduce the generation of gas due to localized heat due to the viscosity increase of the thermoplastic resin composition due to the interaction with the vinyl cyanide-aromatic vinyl compound copolymer (A3).
The amount of the polyolefin wax (D) is preferably 0.1 to 1 part by weight, more preferably 0.2 to 0.8 part by weight based on 100 parts by weight of the base resin. When the amount is less than 0.1 part by weight, the effect of inhibiting the generation of gas silver is insignificant. When the amount is more than 1 part by weight, peeling may occur.
Next, molded articles for automobile exterior use using the thermoplastic resin composition of the present invention have an Izod impact strength as measured by ASTM D256 of 7 to 10 kgf · cm / cm and a flexural modulus as measured by ASTM D790 of 40,000 kgf / cm 2 or more It is most preferable that the coefficient of thermal expansion (CTE) measured by ASTM E831 is 40 to 45 占 퐉 / (m 占 폚). Through several experiments, it was confirmed that the thermoplastic resin composition falling within the above range has a critical significance for realizing an excellent appearance and excellent stiffness at the time of injection molding with an automotive exterior molded article.
The following are experimental results to demonstrate the superiority of the thermoplastic resin composition of the present invention. Each of the components shown in Table 1 below was mixed in the amounts shown in Table 1, followed by extrusion and processing to produce a thermoplastic resin composition in the form of a pellet. A twin-screw extruder having an L / D of 29 and a diameter of 45 mm was used for the extrusion, and the barrel temperature was set at 250 ° C.
The following Table 1 relates to Examples and Comparative Examples in which the presence or absence of each component and the content ratio are different, wherein 100 parts by weight of a polycarbonate resin, a vinyl cyanide compound-aromatic vinyl compound copolymer and a polyester resin as base resins, Were expressed in parts by weight.
The components shown in Table 1 are as follows.
(A1) The polycarbonate resin is a product of Samsung SDI having a weight average molecular weight of 24,000 g / mol.
(A2) The polyester resin is BL-8050 product of SK Chemicals having an intrinsic viscosity of 0.77 dl / g.
(A3-1) The cyanide vinyl compound-aromatic vinyl compound copolymer is a product of Samsung SDI having a weight average molecular weight of 120,000 g / mol and a vinyl cyanide content of 24% by weight.
(A3-2) The cyanide vinyl compound-aromatic vinyl compound copolymer is a product of Samsung SDI having a weight average molecular weight of 116,000 g / mol and a vinyl cyanide content of 40% by weight.
(B1) The impact modifier is Elvaloy AC1330 from DuPont which is an ethylene-methyl acrylate copolymer resin (EMA).
(B2) The impact modifier is Mitsubishi Rayon's Metablen C223A product with a core-shell structure with an average particle size of 350 nm.
(B3) The impact modifier is a Paraloid EXL-2603 product from Dow Chemical having a core-shell structure with an average particle size of 250 nm.
(B4) The impact modifier is a Paraloid BTA-731 product from Dow Chemical of a core-shell structure with an average particle size of 130 nm.
(C1) The filler is talc and is UPN HS-T 0.5 product of Hayashi Kasei with an aspect ratio of 30.
(C2) filler is barium sulphate (BaSO 4 ) and Blanc Fixe Brilliant product of Solvay Chemicals with an aspect ratio of 1.
(C3) filler is glass fiber, needle-shaped, and CS321-EC10-3 from KCC having an aspect ratio of 150 or more.
(D) The polyolefin wax is a Hi-Wax 400P product of Mitsui Chemicals, a polyethylene wax.
The pellets prepared in accordance with Table 1 were dried at 100 ° C for 2 hours and then set at a cylinder temperature of 240 ° C and a mold temperature of 60 ° C using a 6 oz injection molding machine to obtain test specimens for measurement of physical properties and test specimens having a size of 9 cm x 5 cm x 0.2 cm Specimens were prepared. The properties of the prepared specimens were measured by the following methods. The results are shown in Table 2 below.
(1) Izod impact strength measurement: Izod impact strength (notched) was measured according to ASTM D256. (Specimen thickness: 1/8 ", measuring temperature: 23 ° C)
(2) Flexural modulus measurement: Flexural modulus was measured according to ASTM D790. (Specimen thickness: 1/4 ")
(3) Measurement of dimensional stability: The thermal expansion coefficient (CTE) in the flow direction was measured according to ASTM E831. (Measuring temperature range: -20 ℃ ~ 100 ℃)
(4) Measurement of Appearance of Injection Molded Parts: The appearance of the filler protrusion, peeling, and generation of silver in the appearance of the periphery of the injection gate of the injection molded article was evaluated by using an optical profiler NT2000 manufactured by Veeco Co., The roughness of the surface was measured by Ra value.
The results of measuring the physical properties of the thermoplastic resin composition prepared according to Table 1 are as follows.
As shown in Table 2, Comparative Example 1 using an impact modifier (B1) that is not a core-shell structure but does not include a rubbery polymer significantly lowered impact strength than the present invention, There is a problem that peeling phenomenon occurs.
In Comparative Example 2 in which the filler (C) was used in addition to the talc (C1) of the present invention and barium sulfate (C2), the bending elastic modulus was significantly lowered and the thermal expansion coefficient was relatively high, ), The impact strength was low, and the glass fiber protrusion was observed on the surface of the injection molded article, and there was a problem that the surface was uneven.
In Comparative Example 4 in which the cyanide vinyl compound-aromatic vinyl compound copolymer (A3) was not used, gas silver was generated on the surface of the injection molded article and the surface characteristics were not good, and the polyolefin wax (D) Comparative Example 5, which was used more frequently, had a problem that a peeling phenomenon occurred in an injection-molded article.
Further, in Comparative Example 6 using the vinyl cyanide-aromatic vinyl compound copolymer (A3) having a higher content of the vinyl cyanide compound than the present invention, there was a problem that the impact strength was remarkably lowered, and the vinyl cyanide compound-aromatic vinyl compound copolymer A3) is out of the range of the present invention, there is a problem that the impact strength is significantly lowered.
That is, in Comparative Examples 1 to 7, at least one of the physical properties such as impact strength, flexural modulus and dimensional stability, and appearance of the injection molded article were poor, which was not suitable for use in automobile exterior materials such as spoilers.
On the other hand, Examples 1 to 4 belonging to the scope of the present invention exhibited excellent impact strength, flexural modulus and dimensional stability, and excellent appearance of an injection molded article.
Therefore, through the above experiments, the critical significance of the content ratio of the components of the present invention and the superiority of the thermoplastic resin composition of the present invention have been proved.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.
Claims (16)
(D) a polyolefin wax.
Wherein the polyolefin wax (D) is a polyethylene wax.
Wherein the cyanide vinyl compound-aromatic vinyl compound copolymer (A3) is copolymerized from a mixture containing 1 to 30% by weight of a vinyl cyanide compound.
Wherein the impact modifier (B) is 3 to 15 parts by weight based on 100 parts by weight of the base resin.
Wherein the average particle size of the impact modifier (B) is 100 to 400 nm.
Wherein the core of the impact modifier (B) comprises a rubbery polymer selected from the group consisting of a diene rubber, an acrylic rubber, a silicone rubber, and a combination thereof, the shell comprising styrene, (Meth) acrylonitrile, (meth) acrylate, and alkyl (meth) acrylate, wherein the alkyl is an alkyl having 1 to 10 carbon atoms. Resin composition.
Wherein the impact modifier (B) has a content ratio of 2: 8 to 8: 2 based on the weight of the core component and the shell component.
Wherein the polyolefin wax (D) is 0.1 to 1 part by weight based on 100 parts by weight of the base resin.
Wherein the filler (C) is 10 to 40 parts by weight based on 100 parts by weight of the base resin.
Wherein the filler (C) is talc.
Wherein the talc is in the form of a plate and has an aspect ratio of 4 to 50. The thermoplastic resin composition according to claim 1,
Wherein the polyester resin (A2) is a polyethylene terephthalate resin.
Wherein the base resin comprises 50 to 85% by weight of the polycarbonate resin (A1), 10 to 45% by weight of the polyester resin (A2) and 1 to 8% by weight of the cyanide vinyl compound-aromatic vinyl compound copolymer (A3) By weight based on the total weight of the thermoplastic resin composition.
The automobile exterior molded article has an Izod impact strength of 7 to 10 kgf · cm / cm measured by ASTM D256, a flexural modulus of 40,000 kgf / cm 2 or more as measured by ASTM D790, and a thermal expansion coefficient of 40 To 45 m / (m 占 폚).
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| US14/824,354 US9758669B2 (en) | 2014-08-18 | 2015-08-12 | Thermoplastic resin composition |
| DE102015113560.4A DE102015113560A1 (en) | 2014-08-18 | 2015-08-17 | THERMOPLASTIC RESIN COMPOSITION |
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Cited By (6)
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| KR20180070132A (en) * | 2016-12-16 | 2018-06-26 | 롯데첨단소재(주) | Thermoplastic resin composition for laser direct structuring process and article comprising the same |
| WO2019132253A1 (en) * | 2017-12-28 | 2019-07-04 | 롯데첨단소재(주) | Thermoplastic resin composition and molded product using same |
| KR20190081868A (en) * | 2017-12-29 | 2019-07-09 | 롯데첨단소재(주) | Thermoplastic resin composition and article produced therefrom |
| WO2021107487A1 (en) * | 2019-11-29 | 2021-06-03 | 롯데케미칼 주식회사 | Thermoplastic resin composition, and molded product produced therefrom |
| US11161978B2 (en) | 2016-12-30 | 2021-11-02 | Lotte Chemical Corporation | Thermoplastic resin composition and molded product using same |
| WO2022045574A1 (en) * | 2020-08-28 | 2022-03-03 | (주) 엘지화학 | Thermoplastic resin composition, preparation method therefor, and molded article comprising same |
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| KR101035116B1 (en) | 2010-01-26 | 2011-05-19 | 주식회사 엘지화학 | Flat fiber glass reinforced polycarbonate composition with high impact strength |
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| JP3569221B2 (en) | 2000-12-01 | 2004-09-22 | 帝人化成株式会社 | Aromatic polycarbonate resin composition and molded article thereof |
| JP4220812B2 (en) * | 2003-03-19 | 2009-02-04 | 出光興産株式会社 | Polycarbonate resin composition and molded product |
| JP5485564B2 (en) | 2009-02-25 | 2014-05-07 | 三菱エンジニアリングプラスチックス株式会社 | Method for producing aromatic polycarbonate resin composition |
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2015
- 2015-08-10 KR KR1020150112489A patent/KR101799638B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101035116B1 (en) | 2010-01-26 | 2011-05-19 | 주식회사 엘지화학 | Flat fiber glass reinforced polycarbonate composition with high impact strength |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20180070132A (en) * | 2016-12-16 | 2018-06-26 | 롯데첨단소재(주) | Thermoplastic resin composition for laser direct structuring process and article comprising the same |
| US11161978B2 (en) | 2016-12-30 | 2021-11-02 | Lotte Chemical Corporation | Thermoplastic resin composition and molded product using same |
| WO2019132253A1 (en) * | 2017-12-28 | 2019-07-04 | 롯데첨단소재(주) | Thermoplastic resin composition and molded product using same |
| KR20190081868A (en) * | 2017-12-29 | 2019-07-09 | 롯데첨단소재(주) | Thermoplastic resin composition and article produced therefrom |
| WO2021107487A1 (en) * | 2019-11-29 | 2021-06-03 | 롯데케미칼 주식회사 | Thermoplastic resin composition, and molded product produced therefrom |
| WO2022045574A1 (en) * | 2020-08-28 | 2022-03-03 | (주) 엘지화학 | Thermoplastic resin composition, preparation method therefor, and molded article comprising same |
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| Publication number | Publication date |
|---|---|
| KR101799638B1 (en) | 2017-11-21 |
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