KR101924257B1 - Polycarbonate resin composition and molded article using thereof - Google Patents

Abstract

The polycarbonate resin composition of the present invention comprises a polycarbonate resin; Metal compounds; And a glass transition temperature adjusting agent, wherein the glass transition temperature adjusting agent contains phosphorus. The polycarbonate resin composition and the molded article thereof are excellent in impact resistance, fluidity, and plating adhesion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a polycarbonate resin composition and a molded article using the polycarbonate resin composition.

The present invention relates to a polycarbonate resin composition and a molded article using the same. More specifically, the present invention relates to a polycarbonate resin composition having excellent impact resistance, fluidity and adhesion to plating, and a molded article using the polycarbonate resin composition.

The thermoplastic resin has a lower specific gravity than glass or metal and has mechanical properties such as excellent moldability and impact resistance. Plastic products using these thermoplastic resins are rapidly replacing existing areas of glass and metals, including electrical and electronic products and automobile parts.

In recent years, research has been conducted on a technique for introducing a substance capable of imparting processability, such as direct plating, laser molding, etc., to a thermoplastic resin as an additive to form a desired fine pattern at a desired position.

Particularly, in an antenna of a smartphone, a separate electrode is required according to each frequency bandwidth. In order to realize a fine pattern corresponding to the frequency band, a laser direct structuring (LDS) technique using the additive is widely used have. The above-described technology has an advantage in internal design in a tendency that a smart phone becomes thinner.

In addition, in order to secure good moldability in a thinning trend, excellent fluidity of the thermoplastic resin is required.

In order to secure the fluidity, there is a method of improving the fluidity by reducing the molecular weight of the thermoplastic resin. However, when the molecular weight is decreased, the brittleness of the resin is increased and the resin is vulnerable to impact.

Therefore, in order to solve such a problem, development of a thermoplastic resin composition having excellent impact resistance, plating adhesion, and the like, while improving moldability with excellent flowability, is required.

The background art of the present invention is disclosed in Korean Patent Publication No. 2011-0018319.

An object of the present invention is to provide a polycarbonate resin composition which is improved in plating adhesion and workability by adding a metal compound to a polycarbonate resin and is easy to form a fine pattern and a molded article using the same.

Another object of the present invention is to provide a polycarbonate resin composition and a molded article using the polycarbonate resin composition, which can realize excellent moldability by injection molding fine parts and the like by improving the fluidity by adding an optimal glass transition temperature adjusting agent.

It is another object of the present invention to provide a polycarbonate resin composition which can improve plating adhesion and can ensure excellent appearance by combination of optimal constituents and can realize excellent physical properties such as impact resistance, .

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

One aspect of the present invention relates to a polycarbonate resin composition. Wherein the polycarbonate resin composition comprises a polycarbonate resin; Metal compounds; And a glass transition temperature adjusting agent, wherein the glass transition temperature adjusting agent contains phosphorus.

In an embodiment, the glass transition temperature adjusting agent may be a compound represented by the following formula:

[Chemical Formula 1]

In Formula 1, R ₁ to R ₆ each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 7 carbon atoms, A substituted or unsubstituted C2-C20 heterocycloalkyl group, a C1-C20 alkoxy group, a C6-C20 aryl group, a C5-C20 heteroaryl group, a substituted or unsubstituted C1- An unsubstituted alkoxycarbonylalkyl group having 3 to 20 carbon atoms, a substituted or unsubstituted carbonylalkyl group having 2 to 10 carbon atoms, an amino group, or a hydroxy group.

In an embodiment, the polycarbonate resin composition may include 75 to 95% by weight of the polycarbonate resin, 1 to 15% by weight of the metal compound, and 1 to 10% by weight of the glass transition temperature adjuster.

In an embodiment, the metal compound may include at least one of a metal oxide, a heavy metal complex oxide, and a copper salt.

In an embodiment, the metal compound may be a spinel structure.

In an embodiment, the metal oxide may include at least one of a copper metal oxide, a zinc metal oxide, a tin metal oxide, a magnesium metal oxide, an aluminum metal oxide, a gold metal oxide, and a silver metal oxide.

In embodiments, the weight ratio of the metal compound to the glass transition temperature adjuster may be from 1: 1 to 5: 1.

In an embodiment of the present invention, the polycarbonate resin composition may further comprise at least one of an antimicrobial agent, a heat stabilizer, an antioxidant, a releasing agent, a light stabilizer, an inorganic additive, a surfactant, a coupling agent, a plasticizer, a compatibilizer, a lubricant, an antistatic agent, a colorant, An additive including at least one of a flame retarding additive, a dripping inhibitor, a weather stabilizer, an ultraviolet absorber, and a sunscreen agent.

In the specific example, the polycarbonate resin composition was injection-molded into a flat plate specimen having a thickness of 1 mm, a width of 5 cm and a length of 5 cm, aged at room temperature for 6 hours, After the surface of the test piece is activated and the copper electroless plating is carried out to a thickness of 35 탆, the peel strength of the plating layer measured by a tensile tester may be 1.35 N / mm or more.

In the specific example, the polycarbonate resin composition was injection-molded into a plate-shaped specimen having a thickness of 1 mm, a width of 5 cm and a length of 5 cm, aged at room temperature for 6 hours, and subjected to a Du Pont drop test Method, the average of the height at which 50% of each of the specimens is impacted by 20 impacts of the specimen may be 50 to 100 cm.

In a specific example, the polycarbonate resin composition was prepared by using a spiral mold having a thickness of 1 mm and a width of 1 cm at an injection molding temperature of 310 ° C, a mold temperature of 60 ° C, a 50% injection pressure and a 50% The spiral flow length of the injection molded specimen may be 100 to 300 mm.

Another aspect of the present invention relates to a molded article. The molded article is formed from the polycarbonate resin composition.

The present invention relates to a polycarbonate resin composition containing a polycarbonate resin and a metal compound added to the polycarbonate resin to improve plating adherence and workability to facilitate fine pattern formation and to improve the fluidity by adding an optimal glass transition temperature regulator, A polycarbonate resin composition capable of realizing excellent moldability, capable of improving plating adherence, securing an excellent appearance by combination of optimum constituent components, and realizing excellent physical properties such as impact resistance and the like The present invention has the effect of providing a molded article to be used.

Hereinafter, the present invention will be described in detail.

The polycarbonate resin composition according to the present invention comprises (A) a polycarbonate resin; (B) a metal compound; And (C) a glass transition temperature adjusting agent.

(A) Polycarbonate resin

As the polycarbonate resin according to one embodiment of the present invention, a conventional polycarbonate resin can be used. For example, a polycarbonate resin represented by the following formula (2) and a carbonate precursor such as phosgene, halogenformate, An aromatic polycarbonate resin can be used.

(2)

In Formula 2, A ₁ represents a single bond, a substituted or unsubstituted alkylene group having 1 to 5 carbon atoms, a substituted or unsubstituted alkylidene group having 2 to 5 carbon atoms, a substituted or unsubstituted cycloalkyl having 3 to 6 carbon atoms Substituted or unsubstituted cycloalkylidene of 5 to 6 carbon atoms, CO, S, or SO ₂ , R ₁ and R ₂ are each independently a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, And n ₁ and n ₂ each independently represent an integer of 0 to 4;

Here, the "substitution" is a hydrogen atom a halogen atom, C ₁ to C ₃₀ alkyl, heteroaryl C ₁ to C ₃₀ of haloalkyl, C ₆ to C ₃₀ aryl, C ₂ to C _30, the C ₁ to C Alkoxy of 1 to ₂₀ carbon atoms, and combinations thereof.

In particular embodiments, the diphenols include hydroquinone, resorcinol, 4,4'-dihydroxydiphenyl, 2,2-bis- (4-hydroxyphenyl) -propane, 2,4- 2-methylbutane, 1,1-bis- (4-hydroxyphenyl) -cyclohexane, 2,2-bis- (3-chloro-4-hydroxyphenyl) Propane, 2,2-bis- (3-methyl-4-hydroxyphenyl) propane, 2,2-bis- (3,5 -Dimethyl-4-hydroxyphenyl) -propane, and the like. Propane, 2,2-bis (3-methyl-4-hydroxyphenyl) propane, 2,2-bis (4-hydroxyphenyl) -propane, 2,2-bis- (3,5-dichloro-4-hydroxyphenyl) Hexane and the like can be used. Specifically, 2,2-bis- (4-hydroxyphenyl) -propane, also called bisphenol-A, can be used.

In an embodiment, the polycarbonate resin may have a weight average molecular weight (Mw) as measured by gel permeation chromatography of 10,000 to 200,000 g / mol, such as 15,000 to 80,000 g / mol, It is not.

In an embodiment, the polycarbonate resin may have a branched chain. For example, a polycarbonate resin prepared by adding 0.05 to 2 parts by mole of a trifunctional or higher polyfunctional compound, for example, a compound having a trivalent or higher phenolic group, per 100 parts by mol of the above-mentioned diphenols may be used .

In an embodiment, the polycarbonate resin may be a homopolycarbonate resin, a copolycarbonate resin, or may be a blend of a copolycarbonate resin and a homopolycarbonate resin.

The polycarbonate resin may be replaced with an aromatic polyester-carbonate resin obtained by polymerization reaction in the presence of an ester precursor such as a bifunctional carboxylic acid.

In an embodiment, the polycarbonate resin (A) comprises 100% by weight ((A) + (B)) of a polycarbonate resin composition comprising a polycarbonate resin (A), a metal compound (B) and a glass transition temperature adjusting agent (C) 75 to 95% by weight, such as 80 to 90% by weight, specifically 85 to 90% by weight, of the total amount of the components (A) and (B) The properties as the base resin can be maintained within the above range, and the moldability, plating adhesion, etc. of the polycarbonate resin composition can be excellent.

(B) a metal compound

The metal compound according to one embodiment of the present invention is a substance having an activity against induced emission light that can impart platability and processability to a polycarbonate resin and enables direct plating or laser molding. Herein, the term " guided-emission light " refers to light amplified by induction emission of radiation. The guided-emission light may be ultraviolet light of 100 to 400 nm wavelength, visible light of 400 to 800 nm wavelength or infrared light of 800 to 25,000 nm wavelength And may be, for example, an X-ray, a gamma ray or a particle beam (an electron beam, an alpha -particle beam or a beta-particle beam), and specifically an infrared ray with a wavelength of 1,064 nm.

The metal compound is exposed on the surface of the polycarbonate resin composition when exposed to the stimulated emission light, and can activate a metal atom contained in the metal compound as a nucleating agent. Accordingly, the region exposed to the induced emission light is activated by the metal compound and the region not exposed to the induced emission light does not activate the metal atom, so that the region exposed to the induced emission light can form a conductive structure.

In an embodiment, the metal compound may be a metal oxide, a heavy metal complex oxide, a copper salt, or a combination thereof.

Further, the metal compound may be a spinel structure.

In an embodiment, the metal oxide may include at least one of a copper metal oxide, a zinc metal oxide, a tin metal oxide, a magnesium metal oxide, an aluminum metal oxide, a gold metal oxide, and a silver metal oxide.

In an embodiment, the heavy metal complex oxide may be represented by the following formula (3).

(3)

AB ₂ O ₄

Wherein A is at least one element selected from the group consisting of chromium, iron, aluminum, nickel, manganese, molybdenum, antimony, bismuth, It is a comment.

In a specific example, the heavy metal complex oxide represented by the above-mentioned general formula (3) is such that A provides a monovalent cation component of a metal oxide cluster, B can provide a monovalent cation component of a metal cation cluster, The oxide clusters may have a tetrahedral structure, and the metal oxide clusters containing B may have octahedral clusters. The heavy metal complex oxide represented by Formula 3 may have a structure in which oxygen is arranged in a cubic closest packing, B is in a gap in an octahedral shape, and A is contained in a gap in a slope.

In an embodiment, the heavy metal complex oxide may be at least one selected from the group consisting of magnesium aluminum oxide (MgAl ₂ O ₄ ), zinc aluminum oxide (ZnAl ₂ O ₄ ), iron aluminum oxide (FeAl ₂ O ₄ ), copper iron oxide (CuFe ₂ O ₄ ) (CuCr ₂ O ₄ ), manganese iron oxide (MnFe ₂ O ₄ ), nickel iron oxide (NiFe ₂ O ₄ ), titanium iron oxide (TiFe ₂ O ₄ ), iron chromium oxide (FeCr ₂ O ₄ ) Magnesium chromium oxide (MgCr ₂ O ₄ ), combinations of these, and the like. For example, if the color required for the final molded article is black or gray, copper chromium oxide (CuCr ₂ O ₄ ) having a dark color may be used.

In an embodiment, the copper salt is selected from the group consisting of copper hydroxide phosphate, copper phosphate, copper sulfate, cuprous thiocyanate, And combinations thereof. For example, copper hydroxide phosphate and the like can be used. Said copper hydroxide phosphate (copper hydroxide phosphate) is a compound with a phosphate of copper and copper hydroxide is combined, specifically, _{Cu 3 (PO 4) 2 ·} 2Cu (OH) 2, Cu 3 (PO 4) 2 · Cu (OH) ₂ , and the like. The copper hydroxide phosphate does not deteriorate the color reproducibility of the added colorant, and thus a molded article of a desired color can be easily obtained.

In an embodiment, the metal compound may have an average particle diameter of 0.01 to 50 mu m, for example, 0.1 to 30 mu m, specifically 0.5 to 10 mu m. In the above range, the plating surface can be uniformly formed by direct plating or laser molding.

Unless otherwise stated in the present specification, the average particle diameter is a number average diameter, which means that D50 (particle diameter at the point where the distribution ratio is 50%) is measured.

In embodiments, the metal compound may be in the form of a metal oxide, a heavy metal complex oxide, or a copper salt coated on a material such as mica, talc, or titanium oxide, or in any other form. In this case, the mica, talc or titanium oxide may be coated or bonded to the surface of the metal compound (metal oxide, heavy metal complex oxide or copper salt) in an amount of 10 to 40 parts by weight based on 100 parts by weight of the metal compound.

When a polycarbonate resin composition containing the metal compound (B) is used, a circuit pattern can be used in a desired form by laser processing directly on a molded product, and a process can be reduced because no chemicals used in electroplating are used .

In an embodiment, the metal compound (B) comprises 100% by weight of a polycarbonate resin composition comprising (A) + (B) + (B) a polycarbonate resin composition comprising a polycarbonate resin (A), a metal compound (B) and a glass transition temperature adjusting agent 1 to 15% by weight, for example, 3 to 12% by weight, and particularly 5 to 10% by weight, based on the total weight of the composition (C). When the polycarbonate resin composition (molded product) is directly plated or laser molded in the above-described range, fine patterns can be easily realized, and fluidity (moldability) can be excellent.

(C) Glass transition temperature regulator

The glass transition temperature adjusting agent according to one embodiment of the present invention can be obtained by lowering the glass transition temperature (Tg) of the polycarbonate resin (for example, 5 to 10 ° C), without deteriorating the mechanical properties of the polycarbonate resin composition, (Processability), plating adhesion, and the like, and a phosphorus-containing compound can be used.

In an embodiment, the glass transition temperature regulator may be cyclic phosphazene.

In an embodiment, the glass transition temperature adjuster may be a compound represented by the following formula (1) (phosphazene).

[Chemical Formula 1]

In Formula 1, R ₁ to R ₆ each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 7 carbon atoms, A substituted or unsubstituted C2-C20 heterocycloalkyl group, a C1-C20 alkoxy group, a C6-C20 aryl group, a C5-C20 heteroaryl group, a substituted or unsubstituted C1- An unsubstituted alkoxycarbonylalkyl group having 3 to 20 carbon atoms, a substituted or unsubstituted carbonylalkyl group having 2 to 10 carbon atoms, an amino group, or a hydroxy group.

Here, the "substitution" means that the hydrogen atom is an alkyl group having 1 to 10 carbon atoms, a halogen atom, a nitro group, a cyano group, a hydroxyl group, an amino group, an aryl group having 6 to 10 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, A heterocycloalkyl group, a heteroaryl group having 4 to 10 carbon atoms, a combination of these, and the like.

Also, the substituents comprising the above "alkyl", "alkoxy" and other "alkyl" moieties include both linear and branched forms, "alkenyl" means a straight or branched chain containing from 2 to 8 carbon atoms and containing at least one double bond Quot; cycloalkyl "includes both saturated monocyclic or saturated bicyclic ring structure forms having 3 to 20 carbon atoms. Refers to an organic radical derived from an aromatic hydrocarbon by the removal of one hydrogen atom and is a single or fused ring system containing in each ring suitably 4 to 7, preferably 5 or 6, ring atoms . Specific examples include, but are not limited to, phenyl, naphthyl, biphenyl, tolyl, and the like.

Said "heterocycloalkyl" is a saturated cyclic hydrocarbon skeletal atom containing 1 to 3 heteroatoms selected from N, O and S, and the remaining saturated monocyclic or bicyclic ring skeletal atoms are carbon, Means pyridinyl, azetidinyl, pyrazolidinyl, oxazolidinyl, piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl, thiazolidinyl, hydantoinyl, valerolactamyl, Oxiranyl, oxetanyl, dioxolanyl, dioxanyl, oxathiolanyl, oxathianyl, dithianyl, dihydrofuranyl, tetrahydrofuranyl, dihydropyranyl, tetrahydropyranyl, tetrahydropyril Naphthyl, decyl, tetrahydropyrimidinyl, tetrahydrothiophenyl, tetrahydrothiopyranyl, diazepanyl, azepanyl and the like.

The "heteroaryl" refers to an aryl group having 1 to 3 heteroatoms selected from N, O, and S as aromatic ring skeletal atoms and the remaining aromatic ring skeletal atoms being carbon, wherein the heteroaryl group is heteroaryl The atoms include divalent aryl groups that are oxidized or capped, for example forming an N-oxide or quaternary salt. Specific examples include furyl, thiophenyl, pyrrolyl, pyranyl, imidazolyl, pyrazolyl, thiazolyl, thiadiazolyl, isothiazolyl, isoxazolyl, oxazolyl, oxadiazolyl, triazinyl, Pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, and the like, but the present invention is not limited thereto.

In an embodiment, the glass transition temperature regulator may include at least one compound represented by the following formula (1a), a compound represented by the following formula (1b), and a compound represented by the following formula (1c).

[Formula 1a]

[Chemical Formula 1b]

[Chemical Formula 1c]

In Formula 1c, R ₁₁ , R ₁₂ , R ₁₃ , R ₁₄ , R _15, and R ₁₆ may each independently be a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group, or a benzyl group.

In an embodiment, the glass transition temperature regulator (C) comprises 100% by weight of a polycarbonate resin composition comprising a polycarbonate resin (A), a metal compound (B) and a glass transition temperature regulator (C) 1 to 10% by weight, for example, 1 to 8% by weight, particularly 3 to 5% by weight, of the total amount of the components (A) and (B) The glass transition temperature of the polycarbonate resin composition (molded product) can be lowered within the above range, and thus the impact resistance, flowability, plating adhesion, balance of physical properties thereof and the like can be excellent.

In an embodiment, the content ratio (weight ratio) of the metal compound (B) to the glass transition temperature adjuster (C) may be 1: 1 to 5: 1, for example, 1: 1 to 3.5: 1. Within the above range, the polycarbonate resin composition (molded article) may be more excellent in impact resistance, fluidity, plating adhesion, physical properties thereof, and the like.

The polycarbonate resin composition according to one embodiment of the present invention may further include additives optionally in accordance with the use thereof. Examples of the additives include antimicrobial agents, heat stabilizers, antioxidants, mold release agents, light stabilizers, inorganic additives, surfactants, coupling agents, plasticizers, Weathering stabilizers, ultraviolet absorbers, ultraviolet screening agents, combinations thereof, and the like, but are not limited thereto. For example, the additive may include an antioxidant, a lubricant, a combination thereof, and the like. In the production of a molded article using the polycarbonate resin composition, decomposition of the polycarbonate resin can be reduced, and workability and the like can be improved .

Examples of the antioxidant include phenol type, phosphite type, thioether type, and amine type antioxidant. Examples of the antioxidant include polyethylene wax and the like, but the present invention is not limited thereto.

Examples of the release agent include fluorine-containing polymer, silicone oil, metal salt of stearic acid, metal salt of montanic acid, montanic ester wax, polyethylene wax, and the inorganic additives include glass fibers, Alumina, clay, calcium carbonate, calcium sulfate, and glass beads. Examples of the colorant include titanium dioxide and carbon black. Examples of the carbon black include graphitized carbon, furnace black, acetylene black, ketjen black, and the like.

Examples of the flame retardant include phosphorus, nitrogen, and halogen flame retardants. Examples of the flame retardant include antimony oxide and the like.

Examples of the anti-drip agent include polytetrafluoroethylene and the like. Examples of the weather stabilizer include benzophenone type or amine type weather resistant stabilizer.

In an embodiment, the additive is added in an amount of 0.1 to 20 parts by weight, for example, 0.1 to 15 parts by weight, per 100 parts by weight of the polycarbonate resin (A), the metal compound (B) .

The polycarbonate resin composition according to one embodiment of the present invention is injection molded into a flat plate specimen having a thickness of 1 mm, a width of 5 cm and a length of 5 cm, aged at room temperature for 6 hours, , The surface of the specimen was activated and the electroless plating of copper was carried out to a thickness of 35 mu m and then the peel strength of the plating layer measured by a tensile tester was 1.35 N / mm or more, for example, 3.00 N / mm, specifically 1.45 to 1.52 N / mm.

In a specific example, the polycarbonate resin composition was prepared by using a spiral mold having a thickness of 1 mm and a width of 1 cm at an injection molding temperature of 310 ° C, a mold temperature of 60 ° C, a 50% injection pressure and a 50% The spiral flow length (unit: mm) of the injection molded polycarbonate resin composition specimen may be 100 to 300 mm, for example, 150 to 250 mm, specifically 163 to 170 mm.

In the specific example, the polycarbonate resin composition was injection-molded into a plate-shaped specimen having a thickness of 1 mm, a width of 5 cm and a length of 5 cm, aged at room temperature for 6 hours, and subjected to a Du Pont drop test Method can be 50 to 100 cm, for example, 60 to 80 cm, specifically 65 to 73 cm, of the height at which 50% of each specimen measured by 20 impacts of the specimen is broken.

The molded article according to the present invention is produced from the polycarbonate resin composition. For example, the polycarbonate resin composition can be used to produce a molded article by a molding method such as injection molding, double injection molding, blow molding, extrusion molding, or compression molding. The molded article can be easily formed by a person having ordinary skill in the art to which the present invention belongs. The polycarbonate resin composition (molded product) can be applied to various industrial fields such as various electric and electronic products and automobile parts, and is particularly useful as a molded article using laser direct structuring (LDS) technology.

Through several experiments, it has been found that the polycarbonate resin composition (molded article) of the present invention falling within the above range has excellent mechanical properties and processability while improving the plating adhesion, Respectively.

Hereinafter, the present invention will be described in more detail by way of examples, but these examples are for illustrative purposes only and should not be construed as limiting the present invention.

Example

The components used in the polycarbonate resin compositions of the following Examples and Comparative Examples are as follows.

(A) Polycarbonate resin

SC-1190, a polycarbonate resin manufactured by Samsung SDI, was used.

(B) a metal compound

A Black 1G product, SHEPHERD's copper chromium oxide (CuCr ₂ O ₄ ), was used.

(C) Glass transition temperature regulator

A product of FUSHIMI's cyclic phosphazene Rabite FP 110 was used.

(D) Additive

(D-1) Lubricant

HI-WAX 400P, a polyethylene wax manufactured by MITSUI PETROCHEMICAL, was used.

(D-2) Antioxidant

Doverphos S-9228 PC product, Bis (2,4-dicumylphenyl) pentaerythritol diphosphite, manufactured by DOVER CHEMICAL, was used.

Examples 1 to 3 and Comparative Examples 1 to 4

The polycarbonate resin compositions of Examples and Comparative Examples were prepared in accordance with the ingredient content ratios described in Table 1 below. The content of each component (A), (B) and (C) is expressed as% by weight, and the content of (D) B) and 100 parts by weight of (C).

Each component was added in accordance with the contents of Table 1 below, dry blended, and processed at a barrel temperature of 250 to 280 캜 in a biaxial extruder having a diameter of 45 mm to prepare pellets. The prepared pellets were dried at 100 ° C. for 3 hours or more, and then injection molded into test specimens.

Example Comparative Example One 2 3 One 2 3 4 (A) Polycarbonate resin 87 85 90 90 70 94.5 78 (B) a metal compound 10 10 5 10 10 0.5 17 (C) Glass transition temperature regulator 3 5 5 - 20 5 5 (D) (D-1) Lubricant 0.3 0.3 0.3 0.3 0.3 0.3 0.3 (D-2) Antioxidant 0.3 0.3 0.3 0.3 0.3 0.3 0.3

The polycarbonate resin compositions of Examples 1 to 3 and Comparative Examples 1 to 4 were evaluated for adhesion strength, impact resistance and fluidity by the following property evaluation methods, and the results are shown in Table 2 below.

Property evaluation method

(1) Plating Adhesion Force (N / mm): Flat plate specimens having a thickness of 1 mm, a width of 5 cm and a length of 5 cm were injection-molded, aged at room temperature for 6 hours and laser- The surface of the specimen was activated to conduct electroless copper plating to a thickness of 35 mu m, and then the peel strength (unit: N / mm) of the plating layer was measured by a tensile tester.

(2) Impact resistance (cm): Flat plate specimens having a thickness of 1 mm, a width of 5 cm and a length of 5 cm were injection molded, aged at room temperature for 6 hours, and subjected to a DuPont drop test drop test), and the height at which 50% of each specimen was destroyed was measured and the average value of the height was evaluated.

(3) Flow length (mm): Injection molding at a mold temperature of 310 ° C, a mold temperature of 60 ° C, a 50% injection pressure and a 50% injection rate using a spiral mold having a thickness of 1 mm and a width of 1 cm The flow length (unit: mm) of a polycarbonate resin composition specimen was measured.

Example Comparative Example One 2 3 One 2 3 4 Plating Adhesion (N / mm) 1.45 1.47 1.52 1.33 1.78 Not plated 1.21 Impact resistance (cm) 65 68 73 69 42 85 34 Flow (mm) 170 165 163 125 222 168 170

As shown in Table 2, the polycarbonate resin compositions of Examples 1 to 3, to which the glass transition temperature adjuster (C) was added according to the composition of the present invention, were prepared in the same manner as in Comparative Example 1 in which the glass transition temperature adjuster (C) It can be confirmed that not only the fluidity is remarkably excellent but also the plating adhesion is improved.

Further, Examples 1 to 3 according to the composition of the present invention were superior in plating adhesion, impact resistance and fluidity to each other in comparison with Comparative Examples 2 to 4 in which the content ratios were different, so that the properties required for the exterior materials such as electronic devices It is confirmed that it can be satisfied.

That is, Examples 1 to 3 of the present invention were excellent in balance of plating adhesion, impact resistance and fluidity, whereas Comparative Examples 1 to 4 were remarkably low so that at least one physical property could not be applied to an actual product.

Therefore, through the above experiments, the plating adhesion, impact resistance and fluidity remarkably excellent in the combination of the constituent components of the present invention and in the content ratio between the constituents appeared, and the critical significance thereof was 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 (12)

Polycarbonate resin;
Metal compounds; And
A glass transition temperature adjusting agent,
Wherein the glass transition temperature adjusting agent contains phosphorus,
Wherein the metal compound comprises at least one of a metal complex oxide represented by the following Chemical Formula 3 and a copper salt,
A flat plate specimen having a thickness of 1 mm, a width of 5 cm and a length of 5 cm was injection molded and aged at room temperature for 6 hours to activate the surface of the specimen in a stripe form by laser, Wherein the plating layer has a peel strength of 1.35 N / mm or more as measured by a tensile tester after performing plating so as to reach a thickness of 35 占 퐉.
(3)
AB ₂ O ₄
Wherein A is at least one element selected from the group consisting of chromium, iron, aluminum, nickel, manganese, molybdenum, antimony, bismuth, It is a comment.
The polycarbonate resin composition according to claim 1, wherein the glass transition temperature adjuster is a compound represented by the following formula (1):
[Chemical Formula 1]

In Formula 1, R ₁ to R ₆ each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 7 carbon atoms, A substituted or unsubstituted C2-C20 heterocycloalkyl group, a C1-C20 alkoxy group, a C6-C20 aryl group, a C5-C20 heteroaryl group, a substituted or unsubstituted C1- An unsubstituted alkoxycarbonylalkyl group having 3 to 20 carbon atoms, a substituted or unsubstituted carbonylalkyl group having 2 to 10 carbon atoms, an amino group, or a hydroxy group.
The polycarbonate resin composition according to claim 1, wherein the polycarbonate resin composition comprises 75 to 95% by weight of the polycarbonate resin, 1 to 15% by weight of the metal compound and 1 to 10% by weight of the glass transition temperature adjuster Resin composition.
delete delete The polycarbonate resin composition according to claim 1, wherein the metal compound is a spinel structure.
The polycarbonate resin composition according to claim 1, wherein the weight ratio of the metal compound to the glass transition temperature adjuster is 1: 1 to 5: 1.
The composition according to claim 1, which further comprises at least one additive selected from the group consisting of an antimicrobial agent, a heat stabilizer, an antioxidant, a releasing agent, a light stabilizer, an inorganic additive, a surfactant, a coupling agent, a plasticizer, a compatibilizer, a lubricant, an antistatic agent, An ultraviolet light absorber, and an ultraviolet light absorber. The polycarbonate resin composition according to claim 1,
delete The polycarbonate resin composition according to claim 1, wherein the polycarbonate resin composition is injection-molded into a flat plate having a thickness of 1 mm, a width of 5 cm and a length of 5 cm, aged at room temperature for 6 hours, drop test method, wherein the average height of the 50% of the specimens measured by impacting the specimens is 50 to 100 cm.
The polycarbonate resin composition according to claim 1, wherein the polycarbonate resin composition has an injection molding temperature of 310 DEG C, a mold temperature of 60 DEG C, a 50% injection pressure, and a 50% injection speed using a spiral mold having a thickness of 1 mm and a width of 1 cm Wherein the spiral flow length of the injection molded specimen is 100 to 300 mm.
A molded article formed from the polycarbonate resin composition according to any one of claims 1 to 3, 6 to 8, 10 and 11.