KR20150001991A - Thermoplastic resin composition and molded article using the same - Google Patents
Thermoplastic resin composition and molded article using the same Download PDFInfo
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- KR20150001991A KR20150001991A KR1020130075196A KR20130075196A KR20150001991A KR 20150001991 A KR20150001991 A KR 20150001991A KR 1020130075196 A KR1020130075196 A KR 1020130075196A KR 20130075196 A KR20130075196 A KR 20130075196A KR 20150001991 A KR20150001991 A KR 20150001991A
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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
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- C—CHEMISTRY; METALLURGY
- 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
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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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
- 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
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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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
- 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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Abstract
The present invention relates to a thermoplastic resin which is excellent in dimensional stability, molding processability, impact resistance, weather resistance and mechanical properties, and which can remarkably improve metal texture, gloss property and appearance property by preventing flow marks and weld lines which may occur during injection molding ≪ / RTI >
Description
The present invention relates to a styrenic thermoplastic resin composition for a covering material having excellent metal texture, gloss characteristics and appearance characteristics.
Thermoplastic resins have excellent physical properties such as dimensional stability, molding processability and impact resistance, but good appearance characteristics are not satisfied. Among them, thermoplastic resins have been widely used due to cost reduction and weight reduction of electrical and electronic products, and their application range has been increasing.
Among these thermoplastic resins, an acrylonitrile-butadiene-styrene copolymer resin (hereinafter referred to as ABS resin) is obtained by graft-polymerizing an aromatic vinyl compound styrene monomer and an unsaturated nitrile-based acrylonitrile monomer in the presence of a butadiene rubber- Is prepared by blending the prepared graft ABS resin (hereinafter g-ABS resin) with a styrene-acrylonitrile copolymer resin (hereinafter referred to as SAN resin). These ABS resins have excellent impact resistance, weather resistance, chemical resistance, heat resistance and mechanical strength, and are easy to be molded and processed, and are widely used in various fields such as automobile parts, interior and exterior materials, electrical and electronic products, office equipment and toys.
BACKGROUND ART [0002] In recent years, a variety of characteristics have been demanded in a tendency toward housing of parts in electric / electronic parts, automobile parts and the like. Specifically, the demand for plastic exterior products with various colors is increasing, and a metal texture may be displayed on the resin outer surface by adding a metal or the like to the plastic resin so that a more advanced texture can be felt.
U.S. Patent No. 7,135,520 (Patent Document 1) discloses a method of improving the appearance by using a ground glass fiber and a cut glass fiber in combination, however, there is a problem that the appearance improving effect is insufficient and the mechanical strength is lowered.
Japanese Patent Application Laid-Open No. 2001-262003 (Patent Document 2) discloses the use of metal particles for metal texture, but there are problems such as occurrence of flow marks and weld lines at the time of injection.
Therefore, it is urgent to develop a thermoplastic resin composition for a covering material having excellent gloss characteristics and appearance characteristics while preventing the flow marks and weld lines that can occur during injection molding while maintaining the inherent physical properties of the thermoplastic resin .
It is an object of the present invention to provide a thermoplastic resin composition having excellent metal texture, gloss and appearance characteristics by preventing flow marks and weld lines which may occur during injection molding .
It is still another object of the present invention to provide a molded article excellent in appearance characteristics produced from a thermoplastic resin composition.
In order to achieve the above object, the present invention provides a thermoplastic resin composition comprising (A) a thermoplastic resin containing at least one selected from the group consisting of (a1) a styrenic copolymer resin and (a2) a rubber-modified vinyl- B) hollow microspheres and (C) metal particles.
A thermoplastic resin composition according to an embodiment of the present invention comprises 100 parts by weight of a thermoplastic resin containing at least one selected from the group consisting of (A) a styrene-based copolymer resin (a1) and (a2) a rubber- (B) 1 to 10 parts by weight of hollow microspheres, and (C) 0.01 to 10 parts by weight of metal particles.
In the thermoplastic resin composition according to one embodiment of the present invention, the hollow microspheres may include glass bubbles.
In the thermoplastic resin composition according to one embodiment of the present invention, the glass bubble may have a diameter of 10 to 80 탆.
In the thermoplastic resin composition according to an embodiment of the present invention, the glass bubble may have a compressive strength of 14,000 to 50,000 psi.
In the thermoplastic resin composition according to one embodiment of the present invention, the glass bubble may have a specific gravity of 0.1 to 0.6 g / cc.
In the thermoplastic resin composition according to one embodiment of the present invention, the metal particles may have an average particle diameter of 1 to 150 mu m.
In the thermoplastic resin composition according to one embodiment of the present invention, the metal particles may be selected from aluminum, copper, gold, and combinations thereof.
In the thermoplastic resin composition according to one embodiment of the present invention, the styrenic copolymer resin (a1) is a copolymer of 50 to 95% by weight of an aromatic vinyl compound or a mixture thereof with (meth) acrylic acid alkyl ester, To 50% by weight of a copolymer or a mixture of these copolymers.
In the thermoplastic resin composition according to one embodiment of the present invention, the rubber-modified vinyl-based graft copolymer (a2) is a graft copolymer obtained by graft-polymerizing 5 to 95% by weight of a vinyl monomer mixture to 5 to 95% Lt; / RTI > copolymer.
In the thermoplastic resin composition according to an embodiment of the present invention, the thermoplastic resin composition is selected from the group consisting of glass fiber, carbon fiber, glass bead, glass flake, carbon black, clay, kaolin, talc, mica, calcium carbonate and wallostonite And may further include at least any one of them.
The present invention provides a molded article produced from the thermoplastic resin composition.
The thermoplastic resin composition according to the present invention is excellent in dimensional stability, molding processability, impact resistance, weather resistance, and mechanical properties, and can prevent flow marks and weld lines that can occur during injection molding, thereby remarkably improving metal texture, There is an advantage that can be made.
Hereinafter, the thermoplastic resin composition of the present invention will be described in detail. The following embodiments are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. It will be apparent to those skilled in the art that, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, And a description of the known function and configuration will be omitted.
The inventors of the present invention have made studies to develop a thermoplastic resin composition having excellent appearance properties and as a result, found that a thermoplastic resin containing at least one selected from the group consisting of a styrene-based copolymer resin and a rubber-modified vinyl- It is surprisingly found that the appearance of flow marks and weld lines which can occur during injection molding can be suppressed and the surface appearance characteristics can be remarkably improved by improving the metal texture while including hollow microspheres and metal particles, .
The thermoplastic resin composition of the present invention is obtained by mixing 100 parts by weight of a thermoplastic resin containing at least one selected from the group consisting of (A) a styrene-based copolymer resin (a1) and a rubber-modified vinyl aromatic copolymer (a2) B) 1 to 10 parts by weight of hollow microspheres and (C) 0.01 to 10 parts by weight of metal particles.
(A) a thermoplastic resin
(a1) styrene-based copolymer resin
In the present invention, the styrenic copolymer resin (a1) may be obtained by copolymerizing 50 to 95% by weight of an aromatic vinyl compound or a mixture thereof with an unsaturated nitrile compound, (meth) acrylic acid alkyl ester compound, maleic anhydride, maleimide compound, 5 to 50% by weight. At this time, the copolymerization method may be selected from emulsion polymerization, suspension polymerization, solution polymerization, and bulk polymerization, but is not limited thereto.
The aromatic vinyl compound may be, for example, styrene,? -Methylstyrene, p-methylstyrene, vinyltoluene, 2,4-dimethylstyrene, halogen or alkyl-substituted styrene. Of these, styrene is preferably used.
The unsaturated nitrile compound may be acrylonitrile, methacrylonitrile or the like, but is not limited thereto.
The (meth) acrylic acid alkyl ester compound includes a C1-C8 methacrylic acid alkyl ester compound and a C1-C8 alkyl acrylate compound. The C1-C8 alkyl methacrylate-based compound or the C1-C8 alkyl acrylate-based compound is an alkyl ester compound of methacrylic acid or acrylic acid, which is an ester compound derived from monohydric alcohol containing 1 to 8 carbon atoms . Specific examples include methacrylic acid methyl ester, methacrylic acid ethyl ester, acrylic acid ethyl ester, acrylic acid methyl ester, and methacrylic acid propyl ester, but not always limited thereto.
Examples of the maleimide-based compound include C1-C4 alkyl or phenyl N-substituted maleimide, but are not limited thereto.
In the present invention, the styrenic copolymer (a1) is a copolymer of styrene,? -Methylstyrene, halogen or alkyl-substituted styrene or a mixture thereof in an amount of 50 to 95% by weight and acrylonitrile, methacrylonitrile, C1-C8 alkyl methacrylate Based copolymer or a mixture of these copolymers obtained by copolymerizing 5 to 50% by weight of a C1-C8 alkyl acrylate, maleic anhydride, C1-C4 alkyl or phenyl nucleus-substituted maleimide or a mixture thereof.
A preferred styrenic copolymer (a1) is a monomer mixture of styrene and acrylonitrile, optionally methacrylate methyl ester; a monomer mixture of? -methylstyrene and acrylonitrile, alternatively, a methacrylate methyl ester; Or those prepared from a monomer mixture of styrene,? -Methylstyrene and acrylonitrile, optionally methacrylate methyl ester.
At this time, the styrenic copolymer (a1) preferably has a weight average molecular weight of 15,000 to 250,000 (g / mol).
Another preferred styrenic copolymer (a1) is a copolymer of styrene and maleic anhydride, including those produced by continuous bulk polymerization or solution polymerization. In this case, the content of maleic anhydride is 5 to 50 wt%, and the weight average molecular weight of the styrene / maleic anhydride copolymer is 15,000 to 250,000 (g / mol).
(a2) a rubber-modified vinyl-based graft copolymer
In the present invention, the rubber-modified vinyl-based graft copolymer (a2) is prepared by graft-polymerizing 5 to 95% by weight of a rubbery polymer and 5 to 95% by weight of a vinyl monomer mixture, and the emulsion polymerization, suspension polymerization, And bulk polymerization. Preferably, emulsion polymerization or bulk polymerization is used, but not always limited thereto.
The vinyl-based monomer mixture may be prepared by mixing 50 to 95% by weight of an aromatic vinyl compound, (meth) acrylic acid alkyl ester or a mixture thereof with 5 to 50% by weight of an unsaturated nitrile compound, (meth) acrylic acid alkyl ester, maleimide compound, By weight.
Preferably, the vinyl-based monomer mixture is prepared by mixing 60 to 90% by weight of an aromatic vinyl compound, (meth) acrylic acid alkyl ester or a mixture thereof with an unsaturated nitrile compound, (meth) acrylic acid alkyl ester, maleimide compound, 10 to 40% by weight.
The aromatic vinyl compound may be, for example, styrene,? -Methylstyrene, p-methylstyrene, vinyltoluene, 2,4-dimethylstyrene, halogen or alkyl-substituted styrene.
The (meth) acrylic acid alkyl ester compounds include C1-C8 methacrylic acid alkyl ester type and C1-C8 alkyl acrylate type compounds. The C1-C8 methacrylic acid alkyl ester type or C1-C8 acrylic acid alkyl ester type compound is an alkyl ester type of methacrylic acid or acrylic acid, each of which contains an ester compound obtained from monohydric alcohol containing 1 to 8 carbon atoms And specific examples thereof include methacrylic acid methyl ester, methacrylic acid ethyl ester, acrylic acid ethyl ester, acrylic acid methyl ester, and methacrylic acid propyl ester, but not always limited thereto.
The unsaturated nitrile compound includes acrylonitrile, methacrylonitrile, and the like, but is not limited thereto.
Examples of the maleimide-based compound include C1-C4 alkyl or phenyl N-substituted maleimide, but are not limited thereto.
The rubbery polymer may be at least one selected from the group consisting of a butadiene rubber, an acrylic rubber, an ethylene / propylene rubber, a styrene / butadiene rubber, an acrylonitrile / butadiene rubber, an isoprene rubber, a terpolymer of EPDM and a polyorganosiloxane / Meta) acrylate rubber complex, but is not necessarily limited thereto. At this time, the rubbery polymer preferably has an average particle diameter of 0.05 to 4 탆 in order to improve mechanical properties such as molding processability, dimensional stability and impact resistance.
In the present invention, the rubber-modified vinyl-based graft copolymer (a2) may be a copolymer of styrene,? -Methylstyrene, halogen or alkyl substituted styrene, C1-C8 alkyl methacrylate, C1- Acrylate compound, a C1-C4 alkyl acrylate, a C1-C4 alkyl or phenyl N-substituted maleimide, or an acrylonitrile, methacrylonitrile, C1-C8 methacrylate alkyl ester compound, 5 to 95% by weight of a mixture of monomers containing 5 to 50% by weight of a mixture thereof is mixed with 5 to 95% by weight of a mixture of a butadiene rubber, an acrylic rubber, an ethylene / propylene rubber, a styrene / butadiene rubber, an acrylonitrile / butadiene rubber, an isoprene rubber, (EPDM) and a polyorganosiloxane / polyalkyl (meth) acrylate rubber complex, or a mixture thereof To 5 to 95% by weight.
The rubber-modified vinyl-based graft copolymer (a2) is obtained by graft-copolymerizing styrene, acrylonitrile and optionally (meth) acrylic acid alkyl ester monomer in the form of a mixture in a butadiene rubber, an acrylic rubber, or a styrene / Or graft-copolymerized monomers of (meth) acrylic acid methyl ester with butadiene rubber, acrylic rubber, or styrene / butadiene rubber. Among them, ABS graft copolymer is more preferable.
(B) hollow microspheres
In the present invention, the hollow microspheres are hollow hollow spherical microparticles having a compressive strength of 14,000 to 50,000 psi and a diameter of 10 to 80 탆. For example, the hollow microspheres may be glass bubbles. The hollow microspheres are small hollow glass grains that are excellent in rigidity, yet have a low specific gravity through filling, And excellent permeability and reflection properties in the particle itself, the metal surface exhibits excellent metal texture in combination with the metal particles, thereby remarkably improving the surface characteristics.
At this time, the hollow microspheres may have a diameter of 20 to 70 탆. It is more preferable to exhibit excellent metal texture and surface property increasing effect of the molded article due to permeability and reflectivity in combination with the metal particle component.
Wherein the hollow microspheres are made of a thermoplastic resin containing at least one selected from the group consisting of the styrene type copolymer resin (a1) and the rubber-modified vinyl type aromatic copolymer (a2) as a base resin, Preferably 1 to 10 parts by weight, more preferably 1 to 5 parts by weight. If it is out of the above range, the dispersibility may be deteriorated and the surface characteristics may be deteriorated, and it may be difficult to exhibit an excellent metal texture.
The hollow microspheres may have a specific gravity of 0.1 to 0.6 g / cc. And more preferably 0.2 to 0.4 g / cc. In this case, it has an advantage of improving the surface properties of the molded article through the metal texture by increasing dispersibility.
In the present invention, the metal particles are for imparting a metal texture, and include aluminum, gold, copper, or a combination thereof. At this time, it is preferable that the metal particles have a spherical shape rather than a plate-like shape because a flow mark or a weld line due to dispersion-oriented deformation may occur during injection molding. The average particle diameter of the metal particles is preferably 1 to 150 μm, more preferably 5 to 100 μm, for the purpose of enhancing the surface properties due to mixing with the hollow microspheres.
The content of the metal particles in the base resin (A) may be 0.01 to 10 parts by weight, preferably 0.02 to 5 parts by weight.
The present invention is characterized in that the resin composition further contains one or more selected from the group consisting of glass fiber, carbon fiber, glass bead, glass flake, carbon black, clay, kaolin, talc, mica, calcium carbonate and wallostonite . In this case, molding processability and appearance characteristics can be further improved.
At this time, it is preferable to use at least one selected from glass fiber, talc and wollastonite for high quality surface characteristics and synergistic effect of metal texture. The glass fibers may have an average length of 0.1 to 20 mm, preferably 0.3 to 10 mm, and an aspect ratio of 10 to 2000, preferably 30 to 1,000.
In the present invention, the molded article produced from the thermoplastic resin composition can provide a metal texture without painting and exhibits excellent metal texture and appearance characteristics by using a flop index as a performance index of the molded article. .
The flop index is an index indicating the metal texture of the surface, and the luminance (L) of each reflected light at 15 °, 45 °, and 110 ° is generally measured and obtained according to the following definition. L (x °) means the luminance measured at x °.
The flop index of the metal-free surface is 0, the flop index of the metal is about 15 to about 17, and the flop index of the surface that can feel the metallic texture is about 6.5 or more.
The molded article produced from the thermoplastic resin composition according to the present invention has a flop index of 8 or more.
The thermoplastic resin composition according to the present invention provides a molded article having almost no flow mark and weld line during injection molding and having a flop index of 8 or more.
Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the present invention is not limited to the following examples.
The specifications of each component used in the following examples and comparative examples are as follows.
(a1) styrene-based copolymer resin
Styrene-acrylonitrile (SAN) copolymer resin having a weight average molecular weight of 150,000, prepared by suspension polymerization of 75 parts by weight of styrene and 25 parts by weight of acrylonitrile at 75 DEG C for 5 hours was used.
(a2) a rubber-modified vinyl aromatic copolymer
A polybutadiene rubber latex was added so that the butadiene content was 45 parts by weight based on the total amount of the monomers, and 1.0 part by weight of potassium oleate, which is an additive required for a mixture of 39 parts by weight of styrene, 16 parts by weight of acrylonitrile and 150 parts by weight of deionized water, 0.4 part by weight of a seed and 0.3 part by weight of a t-dodecyl mercaptan chain transfer agent were added and reacted while maintaining the temperature at 75 DEG C for 5 hours to prepare ABS graft latex. A 1% sulfuric acid solution was added to the resulting polymer latex, followed by coagulation and drying to prepare a graft copolymer resin in powder form.
(B) hollow microspheres
A 3M company having a diameter of 40 mu m, a compressive strength of 40,000 psi, and a specific gravity of 0.3 g / cc.
(C) metal particles
Spherical aluminum particles (Micro Metal Co., product name: Al powder) having an average particle diameter of 10 mu m were used.
(Examples 1 and 2)
The above-mentioned components were used to prepare a thermoplastic resin composition having the composition shown in the following Table 1, extruded at 240 DEG C in a conventional twin-screw extruder, extruded into pellets, Respectively. The contents of (a1) and (a2) in Table 1 are expressed as% by weight, and the hollow microspheres and metal particles are expressed as relative amounts (parts by weight) to (a1) + (a2) = 100 parts by weight.
(Example 3)
The same procedure was followed as in Example 1 except that the glass bubble had a compressive strength of 30,000 psi.
(Example 4)
The procedure of Example 1 was repeated except that the glass bubble having a diameter of 30 mu m was used.
(Comparative Example 1)
The procedure of Example 1 was repeated except that hollow microspheres were not used.
(Comparative Example 2)
A hollow microsphere was used in an amount of 0.5 part by weight,
(Comparative Example 3)
The procedure of Example 1 was repeated except that 15 parts by weight of the hollow microspheres were used
(Comparative Example 4)
The hollow microspheres were produced in the same manner as in Example 1, except that the compression strength of the hollow microspheres was 5,000 psi.
(Comparative Example 5)
The hollow microspheres were produced in the same manner as in Example 1, except that the compressive strength of the hollow microspheres was 70,000 psi.
(Comparative Example 6)
A hollow microsphere (glass bubble) having a diameter of 5 탆 was prepared in the same manner as in Example 1.
(Comparative Example 7)
The procedure of Example 1 was repeated except that the hollow microspheres (glass bubble) having a diameter of 150 mu m were used.
(Comparative Example 8)
Except that the metal particles (aluminum particles) having a particle diameter of 0.5 占 퐉 were used.
(Comparative Example 9)
Except that the metal particles (aluminum particles) having a particle diameter of 200 mu m were used.
(Property evaluation)
1) Metal texture
The flop index was measured using a measuring instrument (BYK, model: BYK Mac). The flip-flop effect, which is a texture unique to aluminum particles, was evaluated by combining three angles of 15 °, 45 ° and 110 °, and the values are shown in Table 1 below.
2) Injection Appearance: In the injection molding, a weld line may occur because a mold having two gates is used for injection. The appearance of the molded article was visually observed, and the results of the evaluation according to the following evaluation criteria are shown in Table 1 below.
◎: A state where no flow marks or weld lines are completely different from each other.
∘: There is no flow mark, but there is a slight difference in the weld line.
△: A state in which a different color appears in the flow mark and the weld line.
X: A state in which the unusual color appears in the flow mark and the weld line.
As can be seen from Table 1, in Examples 1 to 4 according to the present invention, compared with the Comparative Examples, the flop index value was high and the flow mark or the weld line was not generated, I can confirm that this is excellent.
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 embodiments, but, on the contrary, Various modifications and variations are possible in light of the above teachings.
Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .
Claims (13)
(B) hollow microspheres and
(C) a thermoplastic resin composition comprising metal particles.
The thermoplastic resin composition is obtained by mixing (B) 100 parts by weight of a thermoplastic resin containing at least one selected from the group consisting of (A) a styrene-based copolymer resin (a1) and a rubber-modified vinyl aromatic copolymer (a2) 1 to 10 parts by weight of hollow microspheres and (C) 0.01 to 10 parts by weight of metal particles.
The hollow microspheres (B) comprise glass bubbles.
The hollow microspheres (B) have a diameter of 10 to 80 탆.
Wherein the glass bubble has a compressive strength of 14,000 to 50,000 psi.
Wherein the glass bubble has a specific gravity of 0.1 to 0.6 g / cc.
Wherein the metal particles (C) have an average particle diameter of 1 to 150 占 퐉.
Wherein the metal particles (C) are selected from aluminum, copper, gold, and combinations thereof.
The styrenic copolymer resin (a1) is a copolymer prepared by copolymerizing 50 to 95% by weight of an aromatic vinyl compound or a mixture thereof with 5 to 50% by weight of a (meth) acrylic acid alkyl ester system or a mixture thereof, Of the thermoplastic resin composition.
The rubber-modified vinyl-based graft copolymer (a2) is a graft copolymer obtained by graft-polymerizing 5 to 95% by weight of a vinyl-based monomer mixture to 5 to 95% by weight of a rubbery polymer.
Wherein the thermoplastic resin composition further comprises at least one selected from the group consisting of glass fiber, carbon fiber, glass bead, glass flake, carbon black, clay, kaolin, talc, mica, calcium carbonate and wallostonite.
Wherein the molded article has a flop index of 8 or more.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130075196A KR20150001991A (en) | 2013-06-28 | 2013-06-28 | Thermoplastic resin composition and molded article using the same |
| PCT/KR2014/000967 WO2014208857A1 (en) | 2013-06-28 | 2014-02-05 | Thermoplastic resin composition and moulded article using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130075196A KR20150001991A (en) | 2013-06-28 | 2013-06-28 | Thermoplastic resin composition and molded article using the same |
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| KR20150001991A true KR20150001991A (en) | 2015-01-07 |
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| KR1020130075196A KR20150001991A (en) | 2013-06-28 | 2013-06-28 | Thermoplastic resin composition and molded article using the same |
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| WO (1) | WO2014208857A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170080174A (en) * | 2015-12-31 | 2017-07-10 | 롯데첨단소재(주) | Thermoplastic resin composition and molded article using thereof |
| KR20190074901A (en) * | 2017-12-20 | 2019-06-28 | (주)엘지하우시스 | A light flooring material |
| WO2019164167A1 (en) * | 2018-02-22 | 2019-08-29 | 롯데첨단소재(주) | Thermoplastic resin composition and molded article formed therefrom |
| US10626266B2 (en) | 2016-12-20 | 2020-04-21 | Lotte Advanced Materials Co., Ltd. | Thermoplastic resin composition and molded product using the same |
| KR20200052498A (en) * | 2018-11-06 | 2020-05-15 | (주)엘지하우시스 | Tile flooring and method for manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177124A (en) * | 1987-08-19 | 1993-01-05 | Intaglio Ltd. | Plastic molded pieces having the appearance of a solid metallic piece |
| DE102009059074A1 (en) * | 2009-12-18 | 2011-06-22 | Bayer MaterialScience AG, 51373 | Scratch-resistant, impact-resistant polycarbonate molding compounds with good mechanical properties II |
| KR20110079466A (en) * | 2009-12-31 | 2011-07-07 | 제일모직주식회사 | Thermoplastic resin composition and molded product using the same |
| KR20130066942A (en) * | 2011-12-13 | 2013-06-21 | 제일모직주식회사 | Thermoplastic resin composition and molded product using the same |
-
2013
- 2013-06-28 KR KR1020130075196A patent/KR20150001991A/en not_active Application Discontinuation
-
2014
- 2014-02-05 WO PCT/KR2014/000967 patent/WO2014208857A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170080174A (en) * | 2015-12-31 | 2017-07-10 | 롯데첨단소재(주) | Thermoplastic resin composition and molded article using thereof |
| US10626266B2 (en) | 2016-12-20 | 2020-04-21 | Lotte Advanced Materials Co., Ltd. | Thermoplastic resin composition and molded product using the same |
| KR20190074901A (en) * | 2017-12-20 | 2019-06-28 | (주)엘지하우시스 | A light flooring material |
| WO2019164167A1 (en) * | 2018-02-22 | 2019-08-29 | 롯데첨단소재(주) | Thermoplastic resin composition and molded article formed therefrom |
| KR20200052498A (en) * | 2018-11-06 | 2020-05-15 | (주)엘지하우시스 | Tile flooring and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014208857A1 (en) | 2014-12-31 |
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