WO2017116042A1 - 고무변성 비닐계 그라프트 공중합체 및 이를 포함하는 열가소성 수지 조성물 - Google Patents
고무변성 비닐계 그라프트 공중합체 및 이를 포함하는 열가소성 수지 조성물 Download PDFInfo
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- WO2017116042A1 WO2017116042A1 PCT/KR2016/014602 KR2016014602W WO2017116042A1 WO 2017116042 A1 WO2017116042 A1 WO 2017116042A1 KR 2016014602 W KR2016014602 W KR 2016014602W WO 2017116042 A1 WO2017116042 A1 WO 2017116042A1
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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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
- C08F279/04—Vinyl aromatic monomers and nitriles as the only monomers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F226/00—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 a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
- C08F2500/12—Melt flow index or melt flow ratio
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/53—Core-shell polymer
Definitions
- the present invention relates to a rubber-modified vinyl graft copolymer and a thermoplastic resin composition comprising the same. More specifically, the present invention relates to a rubber-modified vinyl graft copolymer having excellent impact resistance, heat resistance, appearance characteristics, and the like, a method for preparing the same, and a thermoplastic resin composition comprising the same.
- Rubber-modified aromatic vinyl copolymer resins such as acrylonitrile-butadiene-styrene (ABS) resins have excellent impact resistance, molding processability, and appearance characteristics, and are widely used in various applications such as automobile parts, electrical and electronic products, and office equipment. have.
- ABS acrylonitrile-butadiene-styrene
- the heat-resistant copolymer may cause problems such as gas generation due to depolymerization such as alpha methyl styrene, deterioration of appearance characteristics due to unmelting of N-phenylmaleimide, and rubber-modified vinyl type such as g-ABS.
- the compatibility with the graft copolymer is low, and may cause a decrease in physical properties such as impact resistance and occurrence of deviation.
- An object of the present invention is to provide a rubber-modified vinyl graft copolymer and a method for producing the same that can implement excellent impact resistance, heat resistance, appearance characteristics.
- Another object of the present invention is to provide a thermoplastic resin composition having excellent impact resistance, heat resistance, appearance characteristics and the like including the rubber-modified vinyl graft copolymer.
- the rubber-modified vinyl graft copolymer has a core-shell structure in which a monomer mixture is graft-polymerized on a core including a rubbery polymer to form a shell, and the monomer mixture is substituted with an alpha position represented by Formula 1 below.
- An aromatic monomer including an aromatic vinyl monomer and an aromatic vinyl monomer except the aromatic vinyl monomer substituted with the alpha position; Vinyl cyanide monomers; And maleimide-based monomers;
- R 1 is an alkyl group having 1 to 5 carbon atoms
- Ar is a substituted or unsubstituted aryl group having 6 to 20 carbon atoms or a substituted or unsubstituted alkylaryl group having 7 to 20 carbon atoms.
- the rubber-modified vinyl graft copolymer may be about 60 to about 160 parts by weight of the shell component graft copolymerized with respect to about 100 parts by weight of the core.
- the monomer mixture may include about 30 to about 80 weight percent of the aromatic monomer, about 10 to about 30 weight percent of the vinyl cyanide monomer and about 10 to about 30 weight percent of the maleimide monomer.
- the weight ratio of the aromatic vinyl monomer substituted for the alpha position and the aromatic vinyl monomer substituted for the alpha position substituted may be about 0.5: about 1 to about 5: about 1.
- the average particle diameter of the rubbery polymer may be about 200 to about 400 nm.
- the core may be polymerized by swelling an aromatic monomer and a vinyl cyanide monomer in the rubbery polymer.
- the core is about 10 to about 110 parts by weight of the aromatic monomer and the vinyl cyanide monomer, based on about 100 parts by weight of the rubbery polymer, the weight ratio of the aromatic monomer and the vinyl cyanide monomer is about 1.5 : About 1 to about 4: may be about 1.
- the maleimide monomer may include a compound represented by Formula 2 below:
- R 2 is a hydrocarbon group having 1 to 20 carbon atoms.
- Another aspect of the present invention relates to a method for producing the rubber-modified vinyl graft copolymer.
- the manufacturing method is an aromatic monomer, a cyanide containing an aromatic vinyl monomer, except for the aromatic vinyl monomer substituted with the alpha position represented by the formula (1) and the alpha position substituted aromatic vinyl monomer in the core comprising a rubbery polymer Graft polymerizing the monomer mixture including the vinyl monomer and the maleimide monomer.
- the core is prepared by mixing an aromatic monomer, a vinyl cyanide monomer, and a polymerization initiator with the rubbery polymer, and then adding and stirring an emulsifier, a molecular weight modifier, and water, and the aromatic monomer and the vinyl cyanide monomer are rubbery. Swell into the polymer; And it may be prepared by polymerization.
- thermoplastic resin composition is the rubber-modified vinyl graft copolymer; And aromatic vinyl copolymer resins.
- the thermoplastic resin composition may include about 10 wt% to about 40 wt% of the rubber-modified vinyl graft copolymer and about 60 wt% to about 90 wt% of the aromatic vinyl copolymer copolymer resin.
- the aromatic vinyl copolymer resin may include a copolymer of an aromatic monomer and a vinyl cyanide monomer; A copolymer of an aromatic monomer and a vinyl cyanide monomer including an aromatic vinyl monomer substituted with an alpha position and an aromatic vinyl monomer except for the aromatic vinyl monomer substituted with an alpha position; And copolymers of aromatic monomers, vinyl cyanide monomers and maleimide monomers; It may include one or more of.
- the thermoplastic resin composition has an Izod impact strength of about 1/4 "thick specimens measured from ASTM D256 of about 20 to about 40 kgfcm / cm and a 200 ° C, 10 kg load according to ISO 1133. Melt flow index measured under conditions is about 3 to about 5 g / 10 minutes, Vicat softening temperature (VST) measured at 5 kg load conditions in accordance with ASTM D1525 may be about 110 to about 130 °C. .
- the present invention provides a rubber-modified vinyl graft copolymer and a method for preparing the rubber-modified vinyl graft copolymer which can realize excellent impact resistance, heat resistance, appearance characteristics, and the like. Has the effect of the invention to provide an excellent thermoplastic resin composition.
- the rubber-modified vinyl graft copolymer according to the present invention comprises (a1) an aromatic vinyl monomer having an alpha position substituted in the core (A) comprising a rubbery polymer and (b2) an aromatic vinyl substituted with the alpha position. (B) an aromatic monomer comprising an aromatic vinyl monomer except for the monomer; (c) vinyl cyanide monomers; And (d) a maleimide-based monomer; is a core-shell structural copolymer in which a monomer mixture including a (B) shell is graft polymerized.
- the core according to an embodiment of the present invention may include a rubbery polymer (a1) used in a conventional rubber-modified vinyl-based graft copolymer.
- the rubbery polymer (a1) is a diene rubber such as polybutadiene, poly (styrene-butadiene), poly (acrylonitrile-butadiene), saturated rubber, isoprene rubber, hydrogenated to the diene rubber, Acrylic rubbers such as polybutylacrylic acid, ethylene-propylene-diene monomer terpolymer (EPDM) and the like can be exemplified. These can be applied individually or in mixture of 2 or more types. For example, polybutadiene (PBD, butadiene rubber) etc. can be used.
- PBD polybutadiene
- butadiene rubber butadiene rubber
- the average particle diameter (Z-average) of the rubbery polymer may be about 200 to about 400 nm, for example about 230 to about 350 nm. It is possible to obtain a rubber-modified vinyl-based graft copolymer which can have excellent polymerization efficiency and exhibit excellent impact resistance and appearance characteristics in the graft polymerization in the above range.
- the rubber polymer (a1) may be used as the core (A) alone, or (a2) aromatic monomers (aromatic vinyl monomers) and (a3) vinyl cyanide monomers are swelled in the rubber polymer (a1).
- the polymerized thing can be used.
- the core polymerized by swelling the aromatic monomer and the vinyl cyanide monomer in the rubbery polymer is polymerized, for example, by mixing the aromatic monomer and the vinyl cyanide monomer with the polymerization initiator, and then adding an emulsifier, a molecular weight modifier and water.
- the aromatic monomer and the vinyl cyanide monomer may be swollen into the rubbery polymer, and then polymerized and used may be used, but is not limited thereto.
- the method for producing such a core is known and can be easily performed by those skilled in the art.
- the aromatic monomer (a2) is styrene, ⁇ -methyl styrene, ⁇ -methyl styrene, p-methyl styrene, pt-butyl styrene, ethyl styrene, vinyl xylene, monochloro styrene, dichloro styrene, dibromostyrene, vinyl naphthalene And the like, but are not limited thereto. These can be applied individually or in mixture of 2 or more types. Preferably styrene may be used.
- the vinyl cyanide monomer (a3) may be acrylonitrile, methacrylonitrile, ethacrylonitrile, or the like, but is not limited thereto. These can be applied individually or in mixture of 2 or more types. Preferably acrylonitrile can be used.
- the core (A) is a polymer in which the aromatic monomer (a2) and the vinyl cyanide monomer (a3) are swelled and polymerized in the rubbery polymer (a1), to about 100 parts by weight of the rubbery polymer (a1)
- the aromatic monomer (a2) and the vinyl cyanide monomer (a3) may be polymerized to about 10 to about 110 parts by weight, for example, about 15 to about 106 parts by weight.
- the weight ratio (a2: a3) of the aromatic monomer (a2) and the vinyl cyanide monomer (a3) is about 1.5: about 1 to about 4: about 1, for example, about 2: about 1 to about 3.5: about May be one. It is possible to obtain a rubber-modified vinyl graft copolymer that can implement excellent impact resistance in the above range.
- the shell of the present invention comprises an aromatic vinyl monomer (b1) in which the alpha position is substituted in the core (A) and (b2) an aromatic vinyl monomer except for the aromatic vinyl monomer in which the alpha position is substituted ( b) aromatic monomers; (c) vinyl cyanide monomers; And (d) a monomer mixture comprising a maleimide-based monomer is formed by graft polymerization.
- the rubber-modified vinyl graft copolymer of the present invention forms a shell with at least four components (b1, b2, c, d), thereby solving problems such as deterioration of physical properties due to use of a heat resistant copolymer (matrix resin), When applied to a thermoplastic resin composition, it is possible to implement excellent impact resistance, heat resistance, appearance characteristics.
- the alpha-substituted aromatic vinyl monomer (b1) may be represented by the following Chemical Formula 1.
- R 1 is an alkyl group having 1 to 5 carbon atoms, for example, a methyl group, an ethyl group, a propyl group, and the like
- Ar is a substituted or unsubstituted aryl group having 6 to 20 carbon atoms or a substituted or unsubstituted C 7 to 20 carbon atoms. Is an alkylaryl group.
- 'substituted' means a hydrogen atom having an alkyl group having 1 to 10 carbon atoms, a halogen atom, a nitro group, a cyano group, a hydroxy group, an amino group, an aryl group having 6 to 10 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, and a heterocarbon having 3 to 10 carbon atoms. It means what is substituted by substituents, such as a cycloalkyl group, a C4-C10 heteroaryl group, and these combination.
- Specific examples of Ar may include a phenyl group, benzyl group, halophenyl group, naphthyl group and the like.
- the aromatic vinyl monomer substituted with the alpha position may include ⁇ -methylstyrene and ⁇ -ethylstyrene, but are not limited thereto.
- the aromatic vinyl monomer (b2) excluding the aromatic vinyl monomer substituted with the alpha position may be an aromatic vinyl substituted with the alpha position among the aromatic vinyl monomers used in a conventional rubber-modified vinyl graft copolymer.
- the rest other than the system monomer can be used.
- styrene, ⁇ -methylstyrene, p-methylstyrene, pt-butylstyrene, ethyl styrene, vinyl xylene, monochlorostyrene, dichlorostyrene, dibromostyrene, vinylnaphthalene, etc. may be used, but is not limited thereto. Do not. These can be applied individually or in mixture of 2 or more types. Specifically, styrene may be used.
- the aromatic monomer (b) may be included in about 30 to about 80% by weight, for example about 35 to about 75% by weight of 100% by weight of the monomer mixture.
- the weight ratio (b1: b2) of the aromatic vinyl monomer (b1) except for the alpha-substituted aromatic vinyl monomer (b1) and the aromatic vinyl monomer for which the alpha position is substituted is about 0.5: about 1 to about 5: about 1, for example about 1: about 1 to about 3: about 1. It is possible to economically obtain a rubber-modified vinyl-based graft copolymer that can implement excellent impact resistance, heat resistance, appearance characteristics in the above range.
- the vinyl cyanide monomer (c) may be a vinyl cyanide monomer used in a conventional rubber-modified vinyl graft copolymer.
- acrylonitrile, methacrylonitrile, ethacrylonitrile, phenylacrylonitrile, ⁇ -chloroacrylonitrile, fumaronitrile and the like can be used, but are not limited thereto. These can be applied individually or in mixture of 2 or more types. Specifically acrylonitrile or the like can be used.
- the vinyl cyanide monomer (c) may be included in about 10 wt% to about 30 wt%, for example about 15 wt% to about 25 wt%, in 100 wt% of the monomer mixture. It is possible to obtain a rubber-modified vinyl graft copolymer that can implement excellent heat resistance, impact resistance, appearance characteristics in the above range.
- the maleimide monomer (d) may include an N-substituted maleimide compound represented by Formula 2 below.
- R 2 is a hydrocarbon group having 1 to 20 carbon atoms, for example, an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms, specifically, a methyl group, an ethyl group, a propyl group, a cyclohexyl group, or a phenyl group.
- the maleimide monomer may include N-phenyl maleimide (PMI), N-methyl maleimide, and the like, but are not limited thereto.
- the maleimide monomer (d) may be included in about 10 wt% to about 30 wt%, such as about 15 wt% to about 25 wt%, in 100 wt% of the monomer mixture.
- the graft polymerization rate, efficiency, etc. of the shell component may be high, and a rubber-modified vinyl graft copolymer capable of realizing excellent heat resistance, impact resistance, and appearance characteristics may be obtained.
- the rubber-modified vinyl graft copolymer has about 60 to about 160 parts by weight of the shell component (including b1, b2, c and d), for example about 65 to about 100 parts by weight of the core. About 150 parts by weight may be graft copolymerized. It is possible to obtain a rubber-modified vinyl graft copolymer that can implement excellent impact resistance, heat resistance, appearance characteristics in the above range.
- Method for producing a rubber-modified vinyl graft copolymer is the aromatic monomer (b), the vinyl cyanide monomer (c) and the maleimide monomer (d) in the core (A) It may comprise the step of graft polymerization of the monomer mixture comprising a.
- the polymerization may be carried out by a known polymerization method such as emulsion polymerization, suspension polymerization, solution polymerization, bulk polymerization and the like.
- the polymerization is performed for about 1 to about 10 hours at a temperature of about 45 to about 80 ° C. in the presence of water (ion exchange water, etc.), a polymerization initiator, an emulsifier, a molecular weight regulator, and the like according to a known emulsion polymerization method. , For example, for about 1 to about 5 hours.
- the rubber-modified vinyl graft copolymer of the present invention has high polymerization efficiency by applying the shell component, and thus, rubber-modified vinyl has a high yield even in a short polymerization time compared to a conventional rubber-modified vinyl-based graft copolymer production method.
- System graft copolymers can be prepared.
- polymerization initiator examples include benzoyl peroxide, t-butyl hydroperoxide, cumene hydroperoxide, diisopropylbenzenehydroxy peroxide, t-butyl peroxylaurate, t-butyl peroxy acetate, t-butyl peroxy Peroxide initiators such as propyl caponate; Redox-based initiators combining a redox agent; Combinations of the above may be used, but the present invention is not limited thereto.
- the emulsifiers include soap-based compounds of fatty acids, soap-based compounds of rosin acids, acrylate acrylic acid copolymers saponified with sodium hydroxide, sulfate salts of polyoxyethyleneallylglycidylnonylphenyl ether, alkylarylsulfonates, and alkalimethylalkylsulfates. , Sulfonated alkyl esters, combinations thereof, and the like can be used, but is not limited thereto.
- tert-dodecyl mercaptan bis (isopropoxythiocarbonyl) disulfide, p-methoxyphenyldiazothio-2-naphthyl ether, combinations thereof, and the like can be used, but are not limited thereto. It doesn't work.
- the core (A) is a polymer in which the aromatic monomer (a2) and the vinyl cyanide monomer (a3) are swelled and polymerized in the rubber polymer (a1)
- the monomer mixture including b1, b2, c and d
- a polymerization initiator, a molecular weight regulator, etc. may be added, and graft polymerization of the monomer mixture to the core.
- the rubber-modified vinyl graft copolymer may be added to a sulfuric acid solution or the like to destroy the latex (latex) polymer after completion of the graft polymerization, and then washed with water and dried to obtain a powdery polymer.
- thermoplastic resin composition according to the present invention comprises the rubber-modified vinyl graft copolymer; And aromatic vinyl copolymer resins.
- the rubber-modified vinyl graft copolymer may be present in a form dispersed in the aromatic vinyl copolymer resin (matrix resin).
- the aromatic vinyl copolymer resin may be an aromatic vinyl copolymer resin used in a conventional rubber-modified aromatic vinyl copolymer resin.
- the aromatic vinyl copolymer resin may be a polymer of a monomer mixture including a monomer copolymerizable with an aromatic vinyl monomer such as an aromatic vinyl monomer and a vinyl cyanide monomer.
- the aromatic vinyl copolymer resin may be obtained by mixing an aromatic vinyl monomer and a monomer copolymerizable with an aromatic vinyl monomer, and then polymerizing them, and the polymerization may be emulsion polymerization, suspension polymerization, bulk polymerization, or the like. It can be carried out by a known polymerization method of.
- the aromatic vinyl monomers include styrene, ⁇ -methylstyrene, ⁇ -methylstyrene, p-methylstyrene, pt-butylstyrene, ethyl styrene, vinyl xylene, monochlorostyrene, dichlorostyrene, dibromostyrene Vinyl naphthalene may be used, but is not limited thereto. These can be applied individually or in mixture of 2 or more types.
- the content of the aromatic vinyl monomer may be about 20 to about 90 wt%, for example about 30 to about 80 wt%, of 100 wt% of the total aromatic vinyl copolymer resin. In the above range, the impact resistance, fluidity, and the like of the thermoplastic resin composition may be excellent.
- the monomer copolymerizable with the aromatic vinyl monomer for example, acrylonitrile, methacrylonitrile, ethacrylonitrile, phenylacrylonitrile, ⁇ -chloroacrylonitrile, fumaronitrile, and the like.
- Maleimide monomers such as vinyl cyanide monomer, N-phenyl maleimide (PMI), and N-methyl maleimide (N-methyl maleimide) may be used, and may be used alone or in combination of two or more thereof. Can be.
- the content of the monomer copolymerizable with the aromatic vinyl monomer may be about 10 wt% to about 80 wt%, for example, about 20 wt% to about 70 wt% of the total 100 wt% of the aromatic vinyl copolymer resin. In the above range, the impact resistance, fluidity, and the like of the thermoplastic resin composition may be excellent.
- the aromatic vinyl copolymer resin comprises about 20 to about 90 weight percent of an aromatic vinyl monomer (b), for example about 30 to about 80 weight percent, and about 10 to about 80 vinyl cyanide monomer (c).
- Weight percent for example about 20 to about 70 weight percent of a copolymer (binary copolymer); About 15 to about 55 weight percent, for example about 20 to about 50 weight percent, and the aromatic vinyl monomer except for the alpha position substituted aromatic vinyl monomer (b2) From about 5 to about 35 weight percent, such as from about 10 to about 30 weight percent and from about 10 to about 80 weight percent, such as from about 20 to about 70 weight percent, of a vinyl cyanide monomer (c) Copolymer); And about 20 to about 90 weight percent of aromatic vinylic monomer (b), for example about 30 to about 80 weight percent, vinyl cyanide monomer (c) about 5 to about 70 weight percent, for example about 10 to about 60 Weight percent and about 5 to about 70 weight percent of a maleimide-based monomer (d), for example about 10
- SAN styrene-acrylonitrile
- AMS-SAN ⁇ -methylstyrene-styrene-acrylonitrile
- PMI-SAN N-phenylmaleimide-styrene-acrylonitrile
- Aromatic vinyl copolymer resins containing from about 40% by weight may be used. In the above range, a thermoplastic resin composition excellent in impact resistance, heat resistance, flowability (processability), appearance characteristics, and the like can be obtained.
- the aromatic vinyl copolymer resin has a weight average molecular weight (Mw) measured by gel permeation chromatography (GPC) of about 10,000 to about 300,000 g / mol, for example, about 15,000 to about 160,000 g / mol Can be.
- Mw weight average molecular weight measured by gel permeation chromatography
- the thermoplastic resin composition may have excellent impact resistance, heat resistance, fluidity (processability), appearance characteristics, and the like.
- the thermoplastic resin composition comprises about 10 to about 40 weight percent of the rubber-modified vinyl graft copolymer, for example about 15 to about 35 weight percent, and about 60 to about 90 weight of the aromatic vinyl copolymer resin. %, For example from about 65 to about 85 weight percent. In the above range, the thermoplastic resin composition may have excellent impact resistance, heat resistance, fluidity (processability), appearance characteristics, and the like.
- the thermoplastic resin composition according to one embodiment of the present invention may further include conventional additives as necessary.
- the additives include, but are not limited to, flame retardants, antioxidants, anti drip agents, lubricants, mold release agents, nucleating agents, antistatic agents, stabilizers, pigments, dyes, mixtures thereof, and the like.
- the content thereof may be about 0.001 to about 20 parts by weight based on about 100 parts by weight of the base resin including the rubber-modified vinyl graft copolymer and the aromatic vinyl copolymer resin, but is not limited thereto.
- the thermoplastic resin composition may be prepared by a known thermoplastic resin composition manufacturing method.
- the above components and, if necessary, other additives may be mixed and then melt-extruded in an extruder to prepare pellets.
- the prepared pellets may be manufactured into various molded articles (products) through various molding methods such as injection molding, extrusion molding, vacuum molding, and casting molding. Such molding methods are well known by those skilled in the art. Since the thermoplastic resin composition of the present invention is excellent in impact resistance, heat resistance, fluidity (processability), appearance characteristics, and the like, it is useful as interior and exterior materials for automobile parts and electric and electronic products.
- the thermoplastic resin composition of the present invention has an Izod impact strength of about 1/4 to about 40 kgfcm / cm, for example about 20 to about 35 kgfcm / cm, measured in accordance with ASTM D256.
- Melt flow index measured at 200 ° C., 10 kg load conditions in accordance with ISO 1133, may be from about 3 to about 5 g / 10 minutes, for example from about 3.5 to about 4.5 g / 10 minutes, according to ASTM D1525.
- Vicat softening temperature (VST) measured at 5 kg load conditions can be about 110 to about 130 °C, for example about 112 to about 125 °C.
- ferric oxide hydrate and sodium pyrophosphate decahydrate were added as redox initiators, and then styrene and acrylonitrile swelled in butadiene rubber were added for 1 hour. During the polymerization to prepare the core.
- SAN aromatic vinyl copolymer resin having a weight average molecular weight of 150,000 g / mol prepared by suspension polymerization of 74% by weight of styrene and 26% by weight of acrylonitrile was used.
- Aromatic vinyl copolymer resin having a weight average molecular weight of 140,000 g / mol prepared by suspension polymerization of a monomer mixture of 54% by weight of ⁇ -methylstyrene (AMS), 19% by weight of styrene, and 27% by weight of acrylonitrile (AMS) -SAN) was used.
- AMS ⁇ -methylstyrene
- AMS acrylonitrile
- composition and content of Table 2 100 parts by weight of the components ((A) and (B)) and 0.1 parts by weight of antioxidant (manufacturer: Ciba, product name: Irganox 1076), 0.3 parts by weight of stabilizer (magnesium stearate)
- antioxidant manufactured by Ciba, product name: Irganox 1076
- stabilizer magnesium stearate
- Pellets were prepared. The prepared pellets were dried at 80 ° C.
- Notch IZOD Impact Strength (Unit: kgf ⁇ cm / cm): Notched Izod impact strength of a 1/4 ”thick specimen was measured according to the evaluation method specified in ASTM D256.
- MI Melt-flow index
- VST Vicat Softening Temperature
- Injection specimen appearance evaluation defects occurred in the specimen after injection of five specimens of 100 mm ⁇ 100 mm ⁇ 3.2 mm specification at a molding temperature of 320 ° C., a mold temperature of 70 ° C., and a cooling time of 120 seconds (silver streak). , Pinholes, and sand were visually observed. Evaluation criteria are as follows.
- ⁇ Good appearance (unobserved pinholes, etc.), ⁇ : Good appearance (less than five occurrences of pinholes, etc.), ⁇ : Poor appearance (five or more occurrences of pinholes, etc.), X: Very poor appearance (observation of hidden lines, etc.)
- Example Comparative example One 2 3 4 5 One 2 3 (A) (% by weight) (A1) 24 - - - - - - - (A2) - 24 - - - - - (A3) - - 24 - - - - - (A4) - - - 24 - - - - (A5) - - - - 24 - - - (A6) - - - - - 24 - - (A7) - - - - - - 24 - (A8) - - - - - - - - 24 (B) (% by weight) (B1) 40 40 40 40 40 40 40 40 (B2) 19 19 19 19 19 19 19 (B3) 17 17 17 17 17 17 17 17 17 17 Notch Izod Impact Strength 22.2 22.6 23.0 23.3 20.5 18.5 15.0 18.3 Melt flow index 4.1 3.9 3.8 3.8 4.1 3.8 6.5 4.5 Vicat Soft
- thermoplastic resin composition comprising the rubber-modified vinyl graft copolymer (Preparation Examples 1 to 5) according to the present invention has impact resistance, fluidity (molding processability), heat resistance, discoloration resistance (weather resistance), appearance characteristics It can be seen that the back is all excellent.
- thermoplastic resin composition (Comparative Example 1) comprising a rubber-modified vinyl graft copolymer (Preparation Example 6) containing no aromatic vinyl monomer and a maleimide monomer substituted in the alpha position as a shell component
- thermoplastic resin composition (Comparative Example 2) containing a rubber-modified vinyl graft copolymer (Production Example 7) containing no maleimide monomer as a shell component
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Abstract
Description
제조예 | ||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||
코어 | (a1) PBD | 평균입경 (nm) | 245 | 310 | 245 | 310 | 310 | 310 | 310 | 310 |
중량부 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | ||
(a2) SM (중량부) | 45 | 52.5 | 38.8 | 45.3 | - | 45.3 | 45.3 | 45.3 | ||
(a3) AN (중량부) | 15 | 17.5 | 12.9 | 15.1 | - | 15.1 | 15.1 | 15.1 | ||
코어 전체 중량부 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | ||
쉘 | (b1) AMS (중량%) | 40 | 40 | 40 | 40 | 40 | - | 40 | - | |
(b2) SM (중량%) | 20 | 20 | 20 | 20 | 20 | 75 | 30 | 30 | ||
(b3) AN (중량%) | 20 | 20 | 20 | 20 | 20 | 25 | 30 | 30 | ||
(b4) PMI (중량%) | 20 | 20 | 20 | 20 | 20 | - | - | 40 | ||
쉘 전체 중량부 | 140 | 130 | 140 | 130 | 100 | 130 | 130 | 130 | ||
전환율(conversion ratio) | 94% | 93% | 96% | 95% | 91% | 95% | 65% | 95% |
실시예 | 비교예 | ||||||||
1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | ||
(A)(중량%) | (A1) | 24 | - | - | - | - | - | - | - |
(A2) | - | 24 | - | - | - | - | - | - | |
(A3) | - | - | 24 | - | - | - | - | - | |
(A4) | - | - | - | 24 | - | - | - | - | |
(A5) | - | - | - | - | 24 | - | - | - | |
(A6) | - | - | - | - | - | 24 | - | - | |
(A7) | - | - | - | - | - | - | 24 | - | |
(A8) | - | - | - | - | - | - | - | 24 | |
(B)(중량%) | (B1) | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
(B2) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | |
(B3) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | |
노치 아이조드 충격 강도 | 22.2 | 22.6 | 23.0 | 23.3 | 20.5 | 18.5 | 15.0 | 18.3 | |
용융흐름지수 | 4.1 | 3.9 | 3.8 | 3.8 | 4.1 | 3.8 | 6.5 | 4.5 | |
비캣 연화온도 | 113.3 | 112.9 | 112.5 | 112.4 | 112.9 | 112.4 | 108.1 | 113.5 | |
ΔYI | 24.3 | 24.5 | 24.1 | 24.9 | 25.4 | 26.3 | 29.5 | 36.1 | |
외관 평가 | ◎ | ◎ | ◎ | ◎ | ◎ | △ | △ | × |
Claims (14)
- 고무질 중합체를 포함하는 코어에 단량체 혼합물이 그라프트 중합되어 쉘을 형성한 코어-쉘 구조를 가지며,상기 단량체 혼합물은 하기 화학식 1로 표시되는 알파 위치가 치환된 방향족 비닐계 단량체 및 상기 알파 위치가 치환된 방향족 비닐계 단량체를 제외한 방향족 비닐계 단량체를 포함하는 방향족 단량체; 시안화 비닐계 단량체; 및 말레이미드계 단량체;를 포함하는 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체:[화학식 1]상기 화학식 1에서, R1은 탄소수 1 내지 5의 알킬기이고, Ar은 치환 또는 비치환된 탄소수 6 내지 20의 아릴기 또는 치환 또는 비치환된 탄소수 7 내지 20의 알킬아릴기이다.
- 제1항에 있어서, 상기 고무변성 비닐계 그라프트 공중합체는 상기 코어 약 100 중량부에 대하여, 상기 쉘 성분 약 60 내지 약 160 중량부가 그라프트 공중합된 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체.
- 제1항에 있어서, 상기 단량체 혼합물은 상기 방향족 단량체 약 30 내지 약 80 중량%, 상기 시안화 비닐계 단량체 약 10 내지 약 30 중량% 및 상기 말레이미드계 단량체 약 10 내지 약 30 중량%를 포함하는 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체.
- 제1항에 있어서, 상기 알파 위치가 치환된 방향족 비닐계 단량체 및 상기 알파 위치가 치환된 방향족 비닐계 단량체를 제외한 방향족 비닐계 단량체의 중량비는 약 0.5 : 약 1 내지 약 5 : 약 1인 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체.
- 제1항에 있어서, 상기 고무질 중합체의 평균 입경은 약 200 내지 약 400 nm인 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체.
- 제1항에 있어서, 상기 코어는 상기 고무질 중합체 내에 방향족 단량체 및 시안화 비닐계 단량체가 팽윤되어 중합된 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체.
- 제6항에 있어서, 상기 코어는 상기 고무질 중합체 약 100 중량부에 대하여, 상기 방향족 단량체 및 시안화 비닐계 단량체 약 10 내지 약 110 중량부가 중합된 것이며, 상기 방향족 단량체 및 상기 시안화 비닐계 단량체의 중량비는 약 1.5 : 약 1 내지 약 4 : 약 1인 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체.
- 고무질 중합체를 포함하는 코어에 상기 화학식 1로 표시되는 알파 위치가 치환된 방향족 비닐계 단량체 및 상기 알파 위치가 치환된 방향족 비닐계 단량체를 제외한 방향족 비닐계 단량체를 포함하는 방향족 단량체, 시안화 비닐계 단량체 및 말레이미드계 단량체를 포함하는 단량체 혼합물을 그라프트 중합시키는 단계를 포함하는 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체의 제조방법.
- 제9항에 있어서, 상기 코어는 상기 고무질 중합체에 방향족 단량체 및 시안화 비닐계 단량체와 중합개시제를 혼합하여 투입한 후, 유화제, 분자량 조절제 및 물을 투입하고 교반하여, 상기 방향족 단량체 및 시안화 비닐계 단량체가 고무질 중합체 내부로 팽윤되도록 하고; 그리고 이를 중합시켜 제조한 것을 특징으로 하는 고무변성 비닐계 그라프트 공중합체의 제조방법.
- 제1항 내지 제8항 중 어느 한 항에 따른 고무변성 비닐계 그라프트 공중합체; 및방향족 비닐계 공중합체 수지를 포함하는 것을 특징으로 하는 열가소성 수지 조성물.
- 제11항에 있어서, 상기 열가소성 수지 조성물은 상기 고무변성 비닐계 그라프트 공중합체 약 10 내지 약 40 중량% 및 상기 방향족 비닐계 공중합체 수지 약 60 내지 약 90 중량%를 포함하는 것을 특징으로 하는 열가소성 수지 조성물.
- 제11항에 있어서, 상기 방향족 비닐계 공중합체 수지는 방향족 단량체 및 시안화 비닐계 단량체의 공중합체; 알파 위치가 치환된 방향족 비닐계 단량체 및 상기 알파 위치가 치환된 방향족 비닐계 단량체를 제외한 방향족 비닐계 단량체를 포함하는 방향족 단량체 및 시안화 비닐계 단량체의 공중합체; 및 방향족 단량체, 시안화 비닐계 단량체 및 말레이미드계 단량체의 공중합체; 중 1종 이상을 포함하는 것을 특징으로 하는 열가소성 수지 조성물.
- 제11항에 있어서, 상기 열가소성 수지 조성물은 ASTM D256에 의거하여 측정한 1/4" 두께 시편의 아이조드 충격강도가 약 20 내지 약 40 kgf·cm/cm이며, ISO 1133에 의거하여 200℃, 10 kg 하중 조건에서 측정한 용융흐름지수가 약 3 내지 약 5 g/10분이며, ASTM D1525에 의거하여 5 kg 하중 조건에서 측정한 비캣(Vicat) 연화온도(VST)가 약 110 내지 약 130℃인 것을 특징으로 하는 열가소성 수지 조성물.
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KR20030052525A (ko) * | 2001-12-21 | 2003-06-27 | 제일모직주식회사 | 충격 강도가 향상된 스티렌계 열가소성 복합재료 |
KR20030056475A (ko) * | 2001-12-28 | 2003-07-04 | 제일모직주식회사 | 유리섬유 강화 스티렌계 열가소성 복합재료 |
KR20060047874A (ko) * | 2004-05-15 | 2006-05-18 | 란세스 도이치란트 게엠베하 | 그라프트 중합체를 포함하는 압출 가공용 조성물 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10767038B2 (en) | 2015-12-31 | 2020-09-08 | Lotte Advanced Materials Co., Ltd. | Rubber modified vinyl-based graft copolymer, and thermoplastic resin composition containing same |
Also Published As
Publication number | Publication date |
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JP6978412B2 (ja) | 2021-12-08 |
KR101895112B1 (ko) | 2018-09-04 |
US10767038B2 (en) | 2020-09-08 |
JP2019500434A (ja) | 2019-01-10 |
US20180298184A1 (en) | 2018-10-18 |
KR20170080169A (ko) | 2017-07-10 |
CN108368209A (zh) | 2018-08-03 |
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