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WO2018124657A1 - Composition de résine thermoplastique et article moulé fabriqué avec celle-ci - Google Patents

Composition de résine thermoplastique et article moulé fabriqué avec celle-ci Download PDF

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Publication number
WO2018124657A1
WO2018124657A1 PCT/KR2017/015364 KR2017015364W WO2018124657A1 WO 2018124657 A1 WO2018124657 A1 WO 2018124657A1 KR 2017015364 W KR2017015364 W KR 2017015364W WO 2018124657 A1 WO2018124657 A1 WO 2018124657A1
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WO
WIPO (PCT)
Prior art keywords
thermoplastic resin
resin composition
weight
monomer
aromatic vinyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2017/015364
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English (en)
Korean (ko)
Inventor
양천석
김연경
배승용
김주성
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lotte Advanced Materials Co Ltd
Original Assignee
Lotte Advanced Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lotte Advanced Materials Co Ltd filed Critical Lotte Advanced Materials Co Ltd
Priority to JP2019532007A priority Critical patent/JP7198753B2/ja
Priority to US16/466,841 priority patent/US10829628B2/en
Priority to CN201780081072.5A priority patent/CN110114405B/zh
Priority claimed from KR1020170177878A external-priority patent/KR102005162B1/ko
Publication of WO2018124657A1 publication Critical patent/WO2018124657A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K5/00—Use of organic ingredients
    • 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
    • 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

Definitions

  • the present invention relates to a thermoplastic resin composition and a molded article produced therefrom. More specifically, the present invention relates to a thermoplastic resin composition excellent in antimicrobial activity, antistatic property, impact resistance and the like and a molded article produced therefrom.
  • thermoplastic resin rubber-modified aromatic vinyl copolymer resins such as acrylonitrile-butadiene-styrene copolymer resin (ABS resin) are excellent in mechanical properties, processability, appearance characteristics, etc. It is widely used as interior / exterior materials for automobiles and exterior materials for construction.
  • ABS resin acrylonitrile-butadiene-styrene copolymer resin
  • an inorganic or organic antimicrobial agent may be used.
  • the inorganic antimicrobial agent there is a problem such as discoloration of the thermoplastic resin and a decrease in transparency. It is not easy to apply.
  • thermoplastic resin composition having excellent antimicrobial properties as well as antistatic properties and impact resistance.
  • An object of the present invention is to provide a thermoplastic resin composition excellent in antibacterial, antistatic, impact resistance and the like.
  • Another object of the present invention is to provide a molded article formed from the thermoplastic resin composition.
  • thermoplastic resin composition may include about 100 parts by weight of a thermoplastic resin including a rubber-modified vinyl graft copolymer and an aromatic vinyl copolymer resin; About 10 to about 30 parts by weight of an antistatic agent; And from about 0.01 to about 2 parts by weight of zinc oxide, wherein the antistatic agent comprises at least one of polyetheresteramide block copolymers, polyalkylene glycols, and polyamides.
  • the rubber-modified vinyl graft copolymer may be a graft polymerized monomer mixture including an aromatic vinyl monomer and a vinyl cyanide monomer in a rubbery polymer.
  • the aromatic vinyl copolymer resin may be a polymer of an aromatic vinyl monomer and a monomer copolymerizable with the aromatic vinyl monomer.
  • the rubber-modified vinyl graft copolymer is included in about 20 to about 50% by weight of 100% by weight of the thermoplastic resin, the aromatic vinyl copolymer resin is from about 50 to 100% by weight of the thermoplastic resin About 80% by weight.
  • the zinc oxide may have an average particle size of about 0.2 to about 3 ⁇ m and a specific surface area BET of about 1 to about 10 m 2 / g.
  • the zinc oxide may have a size ratio (B / A) of peak A in the 370 to 390 nm region and peak B in the 450 to 600 nm region when measured by photo luminescence. have.
  • the zinc oxide has a peak position 2 ⁇ of 35 to 37 ° when analyzed by X-ray diffraction (XRD), and crystallite size according to Equation 1 below. ) Value can be from about 1,000 to about 2,000 mm 3:
  • K is a shape factor
  • ⁇ is an X-ray wavelength
  • ⁇ is an FWHM value of an X-ray diffraction peak
  • ⁇ is a peak position value. (peak position degree).
  • thermoplastic resin composition is inoculated with Staphylococcus aureus and Escherichia coli on a 5 cm ⁇ 5 cm size specimen, based on JIS Z 2801 antimicrobial evaluation method, and measured after incubation at 35 ° C. and RH 90% for 24 hours.
  • the antimicrobial activity may be about 2 to about 7 and about 2 to about 6.5, respectively.
  • thermoplastic resin composition may have a surface resistance value of about 1 ⁇ 10 6 to about 1 ⁇ 10 10 ⁇ ⁇ cm measured according to ASTM D257.
  • thermoplastic resin composition may have a notched Izod impact strength of about 1/4 "thick specimen, measured in accordance with ASTM D256, from about 15 to about 25 kgfcm / cm.
  • Another aspect of the invention relates to a molded article.
  • the molded article is formed from the thermoplastic resin composition.
  • the present invention has the effect of the invention to provide a thermoplastic resin composition excellent in antimicrobial properties, antistatic properties, impact resistance and the like and a molded article formed therefrom.
  • thermoplastic resin composition includes (A) a thermoplastic resin comprising (A1) a rubber-modified vinyl graft copolymer and (A2) an aromatic vinyl copolymer resin; (B) antistatic agents; And (C) zinc oxide.
  • thermoplastic resin (A) thermoplastic resin
  • thermoplastic resin of the present invention may be a rubber-modified vinyl copolymer resin containing (A1) rubber-modified vinyl-based graft copolymer and (A2) aromatic vinyl-based copolymer resin.
  • Rubber-modified vinyl graft copolymer according to an embodiment of the present invention may be a graft polymerized monomer mixture comprising an aromatic vinyl monomer and a vinyl cyanide monomer in the rubber polymer.
  • the rubber-modified vinyl graft copolymer may be obtained by graft polymerization of a monomer mixture comprising an aromatic vinyl monomer and a vinyl cyanide monomer in a rubbery polymer, and, if necessary, processability and The monomer which gives heat resistance can be further included and graft-polymerized.
  • the polymerization may be carried out by known polymerization methods such as emulsion polymerization and suspension polymerization.
  • the rubber-modified vinyl graft copolymer may form a core (rubber polymer) -shell (copolymer of monomer mixture) structure, but is not limited thereto.
  • the rubbery polymer may be a diene rubber such as polybutadiene, poly (styrene-butadiene), poly (acrylonitrile-butadiene), or a saturated rubber hydrogenated to the diene rubber, isoprene rubber, C 2 to C 10 alkyl (meth) acrylate rubbers, copolymers of alkyl (meth) acrylates having 2 to 10 carbon atoms and styrene, ethylene-propylene-diene monomer terpolymers (EPDM), and the like. These can be applied individually or in mixture of 2 or more types. For example, a diene rubber, (meth) acrylate rubber, etc.
  • the average particle size (Z-average) of the rubbery polymer (rubber particles) may be about 0.05 to about 6 ⁇ m, for example about 0.15 to about 4 ⁇ m, specifically about 0.25 to about 3.5 ⁇ m. In the above range, the thermoplastic resin composition may be excellent in impact resistance, appearance characteristics, and the like.
  • the content of the rubbery polymer may be about 20 to about 70% by weight, for example about 25 to about 60% by weight of the total 100% by weight of the rubber-modified vinyl-based graft copolymer, the monomer mixture (aromatic The vinyl monomer and the vinyl cyanide monomer) may be about 30 to about 80 wt%, for example about 40 to about 75 wt%, of 100 wt% of the total rubber-modified vinyl graft copolymer.
  • the thermoplastic resin composition may be excellent in impact resistance, appearance characteristics, and the like.
  • the aromatic vinyl monomer may be graft copolymerized to the rubbery polymer, styrene, ⁇ -methylstyrene, ⁇ -methylstyrene, p-methylstyrene, pt-butylstyrene, ethyl styrene, vinyl xylene, Monochlorostyrene, dichlorostyrene, dibromostyrene, vinylnaphthalene, etc. can be illustrated. These may be used alone or in combination of two or more thereof.
  • the aromatic vinyl monomer may be included in an amount of about 10 wt% to about 90 wt%, for example, about 40 wt% to about 90 wt% in 100 wt% of the monomer mixture. In the above range, the processability, impact resistance, and the like of the thermoplastic resin composition may be excellent.
  • the vinyl cyanide monomer is copolymerizable with the aromatic vinyl system, and may include acrylonitrile, methacrylonitrile, ethacrylonitrile, phenylacrylonitrile, ⁇ -chloroacrylonitrile, fumaronitrile, and the like. It can be illustrated. These may be used alone or in combination of two or more thereof. For example, acrylonitrile, methacrylonitrile, etc. can be used.
  • the content of the vinyl cyanide monomer may be about 10 wt% to about 90 wt%, for example about 10 wt% to about 60 wt%, in 100 wt% of the monomer mixture. In the above range, the thermoplastic resin composition may have excellent chemical resistance, mechanical properties, and the like.
  • monomers for imparting processability and heat resistance may include, but are not limited to, (meth) acrylic acid, maleic anhydride, N-substituted maleimide, and the like.
  • the content may be about 15% by weight or less, for example about 0.1 to about 10% by weight of 100% by weight of the monomer mixture. In the above range, processability and heat resistance can be imparted to the thermoplastic resin composition without deteriorating other physical properties.
  • the rubber-modified vinyl graft copolymer is a copolymer in which a styrene monomer, which is an aromatic vinyl compound, and an acrylonitrile monomer, which is a vinyl cyanide compound, are grafted to a butadiene rubber polymer, and butyl acryl.
  • An acrylate-styrene-acrylonitrile graft copolymer (g-ASA) which is a copolymer in which the styrene monomer which is an aromatic vinyl type compound, and the acrylonitrile monomer which is a vinyl cyanide compound is grafted to a latex rubbery polymer can be illustrated. have.
  • the rubber modified vinyl graft copolymer is about 20 to about 50 wt%, for example about 100 wt% of the total thermoplastic resin (rubber modified vinyl graft copolymer and aromatic vinyl copolymer resin) 25 to about 45 weight percent.
  • the impact resistance, fluidity (molding processability), appearance properties, balance of physical properties, and the like of the thermoplastic resin composition may be excellent.
  • the aromatic vinyl copolymer resin according to one embodiment of the present invention may be an aromatic vinyl copolymer resin used in a conventional rubber-modified vinyl copolymer resin.
  • the aromatic vinyl copolymer resin may be a polymer of a monomer mixture including an aromatic vinyl monomer and a monomer copolymerizable with the aromatic vinyl 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 , Vinylnaphthalene and the like can be used. 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 may include at least one of a vinyl cyanide monomer and an alkyl (meth) acrylic monomer.
  • a vinyl cyanide monomer and an alkyl (meth) acrylic monomer may be a vinyl cyanide monomer or a vinyl cyanide monomer and an alkyl (meth) acrylic monomer, specifically, a vinyl cyanide monomer and an alkyl (meth) acrylic monomer.
  • examples of the vinyl cyanide monomer may include acrylonitrile, methacrylonitrile, ethacrylonitrile, phenylacrylonitrile, ⁇ -chloroacrylonitrile, fumaronitrile, and the like, but are not limited thereto. Do not. These may be used alone or in combination of two or more thereof. For example, acrylonitrile, methacrylonitrile, etc. can be used.
  • examples of the alkyl (meth) acrylic monomer may include (meth) acrylic acid and / or alkyl (meth) acrylate having 1 to 10 carbon atoms. These may be used alone or in combination of two or more thereof. For example, methyl methacrylate, methyl acrylate, etc. can be used.
  • the content of the vinyl cyanide monomer may be 100% by weight of the monomer copolymerizable with the aromatic vinyl monomer.
  • the thermoplastic resin composition may have excellent transparency, heat resistance, processability, and the like.
  • the content of the monomer copolymerizable with the aromatic vinyl monomer may be about 10 to about 80 wt%, for example about 20 to about 70 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 aromatic vinyl copolymer resin has a weight average molecular weight (Mw) of about 10,000 to about 300,000 g / mol, for example, about 15,000 to about 150,000 g / mol, as measured by gel permeation chromatography (GPC). Can be. In the above range, the mechanical strength, moldability, and the like of the thermoplastic resin composition may be excellent.
  • the aromatic vinyl copolymer resin may be included in about 50 to about 80% by weight, for example about 55 to about 75% by weight of 100% by weight of the total thermoplastic resin. Impact resistance, fluidity (molding processability) and the like of the thermoplastic resin composition in the above range may be excellent.
  • An antistatic agent according to an embodiment of the present invention may improve antimicrobial properties, antistatic properties, and the like of a thermoplastic resin composition (sample) with a small amount of zinc oxide, and a polyetheresteramide block copolymer and a polyalkylene glycol And polyamides, combinations thereof, and the like.
  • a polyetheresteramide block copolymer may be included, and an antistatic agent made of a commercially available polyetheresteramide copolymer may be used.
  • the polyetheresteramide block copolymers include amino carboxylic acids, lactams or diamine-dicarboxylates having 6 or more carbon atoms; Polyalkylene glycols; And it may be a block copolymer of the reaction mixture comprising a dicarboxylic acid having 4 to 20 carbon atoms.
  • a salt of the said C6 or more amino carboxylic acid, lactam, or diamine dicarboxylic acid it is omega-aminocapronic acid, omega-aminoenanthate, omega-aminocaprylic acid, omega-aminofelconic acid, omega- Aminocarboxylic acids such as aminocaprinic acid, 1,1-aminoundecanoic acid, 1,2-aminododecanoic acid and the like; Lactams such as caprolactam, enanthlactam, capryllactam, lauryl lactam and the like; And salts of diamines and dicarboxylic acids such as salts of hexamethylenediamine-adipic acid, salts of hexamethylenediamine-isophthalic acid, and the like.
  • 1,2-aminododecanoic acid, caprolactam, salts of hexamethylenediamine-adipic acid, and the like can be used.
  • polyalkylene glycol examples include polyethylene glycol, poly (1,2- and 1,3-propylene glycol), polytetramethylene glycol, polyhexamethylene glycol, block or random copolymers of ethylene glycol and propylene glycol, and ethylene glycol And copolymers of tetrahydrofuran and the like can be exemplified.
  • polyethylene glycol, a copolymer of ethylene glycol and propylene glycol, etc. can be used.
  • C4-C20 dicarboxylic acid terephthalic acid, 1, 4- cyclohexacarboxylic acid, sebacic acid, adipic acid, dodecanoic acid, etc. can be illustrated.
  • the bond of the amino carboxylic acid, lactam or diamine-dicarboxylic acid salt of 6 or more carbon atoms; and the polyalkylene glycol; may be an ester bond, the amino carboxylic acid, lactam or of 6 or more carbon atoms
  • the combination of the diamine-dicarboxylic acid salt and the dicarboxylic acid having 4 to 20 carbon atoms may be an amide bond, and the combination of the polyalkylene glycol; and the dicarboxylic acid having 4 to 20 carbon atoms; It may be an ester bond.
  • the polyetheresteramide block copolymer may be prepared by a known synthesis method, for example, according to the synthesis method disclosed in Japanese Patent Publication No. 56-045419 and Japanese Patent Publication No. 55-133424. Can be.
  • the polyetheresteramide block copolymer can comprise about 10 to about 95 weight percent of the polyether-ester block.
  • the mechanical properties of the thermoplastic resin composition may be excellent in antistatic properties.
  • the antistatic agent may be included in an amount of about 10 to about 30 parts by weight, for example about 12 to about 25 parts by weight, specifically about 14 to about 20 parts by weight, based on about 100 parts by weight of the thermoplastic resin.
  • the antistatic agent may be included in an amount of about 10 to about 30 parts by weight, for example about 12 to about 25 parts by weight, specifically about 14 to about 20 parts by weight, based on about 100 parts by weight of the thermoplastic resin.
  • the antistatic agent may be included in an amount of about 10 to about 30 parts by weight, for example about 12 to about 25 parts by weight, specifically about 14 to about 20 parts by weight, based on about 100 parts by weight of the thermoplastic resin.
  • the zinc oxide of the present invention can improve the antimicrobial properties of the thermoplastic resin composition and the like together with the heat stabilizer, and zinc oxide used in a conventional antimicrobial composition can be used.
  • the zinc oxide may have an average particle size of about 0.2 to about 3 ⁇ m, such as about 0.3 to about 2 ⁇ m, as measured by a particle size analyzer, and a specific surface area BET of about 1 to about 10 m 2 / g, For example, it may be about 1 to about 7 m 2 / g, purity may be about 99% or more. In the above range, the antimicrobial properties, weather resistance and the like of the thermoplastic resin composition may be excellent.
  • the zinc oxide has a size ratio (B / A) of peak A in the 370 to 390 nm region and peak B in the 450 to 600 nm region when measured by photo luminescence, eg, For example from about 0.01 to about 0.09 or from about 0.1 to about 1.
  • the thermoplastic resin composition may have excellent antibacterial, low odor or weather resistance.
  • the zinc oxide has a peak position 2 ⁇ of 35 to 37 ° in X-ray diffraction (XRD) analysis, and the measured FWHM value (full of diffraction peaks).
  • the crystallite size value calculated by applying the Scherrer's equation (Equation 1) based on the width at Half Maximum may be about 1,000 to about 2,000 GPa, for example, about 1,200 to about 1,800 GPa. In the above range, the initial color of the thermoplastic resin composition, weather resistance, antibacterial and the like can be excellent.
  • Equation 1 K is a shape factor, ⁇ is an X-ray wavelength, ⁇ is an FWHM value, and ⁇ is a peak position degree.
  • the zinc oxide is dissolved in zinc in the form of metal, vaporized by heating to about 850 to about 1,000 ° C., for example, about 900 to about 950 ° C., followed by injection of oxygen gas and about 20 to about 30 After cooling to °C, if necessary, the heat treatment for about 30 minutes to about 150 minutes at about 700 to about 800 °C while injecting nitrogen / hydrogen gas into the reactor, and then cooled to room temperature (20 to 30 °C) It can manufacture.
  • the zinc oxide may be included in an amount of about 0.01 to about 2 parts by weight, for example, about 0.02 to about 0.5 parts by weight, specifically about 0.03 to about 0.2 parts by weight, based on about 100 parts by weight of the thermoplastic resin.
  • the zinc oxide is less than about 0.01 part by weight, the antimicrobial activity of the thermoplastic resin composition may be lowered.
  • the zinc oxide is more than about 0.2 part by weight, the appearance characteristics (transparency) of the thermoplastic resin composition may be lowered.
  • the thermoplastic resin composition according to one embodiment of the present invention may further include an additive included in a conventional thermoplastic resin composition.
  • the additives may include, but are not limited to, flame retardants, fillers, antioxidants, anti drip agents, lubricants, mold release agents, nucleating agents, antistatic agents, stabilizers, pigments, dyes, mixtures thereof, and the like.
  • the content may be about 0.001 to about 40 parts by weight, for example about 0.1 to about 10 parts by weight, based on about 100 parts by weight of the thermoplastic resin.
  • thermoplastic resin composition according to an embodiment of the present invention may be in the form of pellets mixed with the components and melt-extruded at about 200 to about 280 ° C, for example, about 220 to about 250 ° C, using a conventional twin screw extruder. Can be.
  • thermoplastic resin composition is inoculated with Staphylococcus aureus and Escherichia coli on a 5 cm ⁇ 5 cm size specimen, based on JIS Z 2801 antimicrobial evaluation method, and measured after incubation at 35 ° C. and RH 90% for 24 hours.
  • the antimicrobial activity may be about 2 to about 7 and about 2 to about 6.5, respectively.
  • the thermoplastic resin composition has a surface resistance value of about 1 ⁇ 10 6 to about 1 ⁇ 10 10 ⁇ ⁇ cm, for example about 1 ⁇ 10 8 to about 1 ⁇ 10 10 ⁇ , as measured according to ASTM D257. Can be cm.
  • the thermoplastic resin composition has a notched Izod impact strength of about 1/4 "thick specimen of about 15 to about 25 kgfcm / cm, such as about 18 to about 23 kgfcm, as measured according to ASTM D256. / cm.
  • the molded article according to the present invention is formed from the thermoplastic resin composition.
  • the thermoplastic resin composition may be prepared in a pellet form, and the prepared pellet may be manufactured into various molded products (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.
  • the molded article is excellent in antimicrobial, antistatic, impact resistance, transparency, fluidity (molding processability), the balance of physical properties thereof, and the like, it is useful as a material for frequent medical supplies, interior / exterior materials of electrical / electronic products.
  • thermoplastic resin (A) thermoplastic resin
  • a g-ABS graft copolymerized with 55% by weight of styrene and acrylonitrile (weight ratio: 75/25) was used in a butadiene rubber having a Z-average of 310 nm by weight of 45 kW%.
  • (A2-1) SAN resin (weight average molecular weight: 130,000 g / mol) polymerized with 71% by weight of styrene and 29% by weight of acrylonitrile was used.
  • MSAN Methyl methacrylate-styrene-acrylonitrile copolymer
  • Titanium oxide manufactured by Kemira Specialty Corp, product name: WH-01 was used.
  • Average particle size (unit: ⁇ m): Average particle size was measured using a particle size analyzer (Beckman Coulter Laser Diffraction Particle Size Analyzer LS I3 320 equipment).
  • BET surface area (unit: m 2 / g): The BET surface area was measured by BET analysis equipment (Micromeritics Surface Area and Porosity Analyzer ASAP 2020 equipment) using nitrogen gas adsorption.
  • Purity (Unit:%): Purity was measured using TGA thermal analysis with weight remaining at 800 ° C.
  • PL size ratio (B / A) According to the photo luminescence measuring method, a spectrum of light emitted by a He-Cd laser (Kimmon, 30mW) having a wavelength of 325 nm at room temperature is measured by a CCD detector. The temperature of the CCD detector was maintained at -70 ° C. The size ratio (B / A) of the peak A in the 370 to 390 nm region and the peak B in the 450 to 600 nm region was measured.
  • the injection specimen was subjected to PL analysis by injecting a laser into the specimen without any treatment, and the zinc oxide powder was placed in a pelletizer having a diameter of 6 mm and pressed to produce a flat specimen. It was.
  • Equation 1 K is a shape factor, ⁇ is an X-ray wavelength, ⁇ is an FWHM value, and ⁇ is a peak position degree.
  • Antibacterial activity value In accordance with JIS Z 2801 antimicrobial evaluation method, 5 cm ⁇ 5 cm size specimen was inoculated with Staphylococcus aureus and E. coli, and measured after culturing for 24 hours at 35 °C, RH 90% conditions.
  • Notched Izod impact strength (unit: kgf ⁇ cm / cm): Notched Izod impact strength was measured on a 1/4 "thick specimen in accordance with ASTM D256.
  • Example One 2 3 4 5 (A) (% by weight) (A1) 29 29 29 29 29 (A2-1) 60 60 60 60 60 (A2-2) 11 11 11 11 (B) (part by weight) (B1) 10 20 30 20 20 (B2) - - - - - - (C) (parts by weight) 0.05 0.05 0.05 0.01 0.2 (D) (parts by weight) - - - - - - Antibacterial activity level (E.
  • thermoplastic resin composition of the present invention is excellent in all antibacterial, antistatic, impact resistance and the like.
  • Comparative Example 1 using a small amount of an antistatic agent, the antistatic property is lowered, the measurement resistance value is a level beyond the measurement range, it can be seen that the antibacterial (Stacobacterium) also greatly reduced, compared with the use of an antistatic agent in excess
  • Example 2 it can be seen that the impact resistance is lowered, and in Comparative Example 3 using a small amount of zinc oxide, it was found that the antibacterial property was greatly reduced, and in Comparative Example 4 using an excessive amount of zinc oxide, it was almost opaque in transparency. You can see that it is in one state.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne une composition de résine thermoplastique qui est caractérisée en ce qu'elle comprend : environ 100 parties en poids d'une résine thermoplastique contenant un copolymère greffé à base de vinyle modifié par du caoutchouc et une résine de copolymère à base de vinyle aromatique ; environ 10 à environ 30 parties en poids d'un agent antistatique ; et environ 0,01 à environ 2 parties en poids d'oxyde de zinc, l'agent antistatique comprenant au moins l'un parmi un copolymère séquencé de polyéther ester amide, un polyalkylène glycol et un polyamide. La composition de résine thermoplastique présente d'excellentes propriétés antibactériennes, propriétés antistatiques, résistance aux chocs et propriétés similaires.
PCT/KR2017/015364 2016-12-28 2017-12-22 Composition de résine thermoplastique et article moulé fabriqué avec celle-ci Ceased WO2018124657A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019532007A JP7198753B2 (ja) 2016-12-28 2017-12-22 熱可塑性樹脂組成物およびこれから製造された成形品
US16/466,841 US10829628B2 (en) 2016-12-28 2017-12-22 Thermoplastic resin composition and molded article manufactured therefrom
CN201780081072.5A CN110114405B (zh) 2016-12-28 2017-12-22 热塑性树脂组合物及由其制造的模制品

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20160181359 2016-12-28
KR10-2016-0181359 2016-12-28
KR1020170177878A KR102005162B1 (ko) 2016-12-28 2017-12-22 열가소성 수지 조성물 및 이로부터 제조된 성형품
KR10-2017-0177878 2017-12-22

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WO2018124657A1 true WO2018124657A1 (fr) 2018-07-05

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US10829628B2 (en) 2016-12-28 2020-11-10 Lotte Chemical Corporation Thermoplastic resin composition and molded article manufactured therefrom
CN113166523A (zh) * 2018-11-30 2021-07-23 乐天化学株式会社 热塑性树脂组合物和由其形成的模制品
EP4011965A4 (fr) * 2020-10-14 2022-10-26 LG Chem, Ltd. Composition de résine thermoplastique, son procédé de préparation et produit moulé la comprenant
US11505674B2 (en) 2017-11-08 2022-11-22 Lotte Chemical Corporation Thermoplastic resin composition and molded article produced from same
EP4215583A4 (fr) * 2021-04-28 2024-04-10 Lg Chem, Ltd. Composition de résine thermoplastique

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Publication number Priority date Publication date Assignee Title
US10829628B2 (en) 2016-12-28 2020-11-10 Lotte Chemical Corporation Thermoplastic resin composition and molded article manufactured therefrom
US11505674B2 (en) 2017-11-08 2022-11-22 Lotte Chemical Corporation Thermoplastic resin composition and molded article produced from same
CN113166523A (zh) * 2018-11-30 2021-07-23 乐天化学株式会社 热塑性树脂组合物和由其形成的模制品
CN113166523B (zh) * 2018-11-30 2023-10-10 乐天化学株式会社 热塑性树脂组合物和由其形成的模制品
US12084569B2 (en) 2018-11-30 2024-09-10 Lotte Chemical Corporation Thermoplastic resin composition and molded article formed therefrom
EP4011965A4 (fr) * 2020-10-14 2022-10-26 LG Chem, Ltd. Composition de résine thermoplastique, son procédé de préparation et produit moulé la comprenant
US12240971B2 (en) 2020-10-14 2025-03-04 Lg Chem, Ltd. Thermoplastic resin composition, method of preparing the same, and molded article including the same
EP4215583A4 (fr) * 2021-04-28 2024-04-10 Lg Chem, Ltd. Composition de résine thermoplastique

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