WO2006077721A1 - 熱可塑性樹脂組成物および成形体 - Google Patents
熱可塑性樹脂組成物および成形体 Download PDFInfo
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- WO2006077721A1 WO2006077721A1 PCT/JP2005/023870 JP2005023870W WO2006077721A1 WO 2006077721 A1 WO2006077721 A1 WO 2006077721A1 JP 2005023870 W JP2005023870 W JP 2005023870W WO 2006077721 A1 WO2006077721 A1 WO 2006077721A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/22—Thermoplastic resins
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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
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/10—Block- or graft-copolymers containing polysiloxane sequences
Definitions
- the present invention relates to a thermoplastic resin composition and a molded product having excellent mechanical strength, moisture resistance, and fluidity. More specifically, it comprises a resin composition comprising a polycarbonate resin and a polylactic acid-based resin, which has significantly improved hydrolysis resistance and excellent mechanical strength, such as a thin falling weight impact strength and an Izod impact strength, and the resin composition. It relates to a molded body.
- the thermoplastic resin composition of the present invention can be used in the fields of electrical / electronic equipment such as office automation equipment, information / communication equipment, home appliances, automobiles, and construction.
- Polycarbonate resins are used in various fields because they are excellent in mechanical properties such as impact resistance, heat resistance, and transparency. In addition, by mixing polycarbonate resin and other resins such as ABS resin, cost reduction, polycarbonate resin molding processability, thickness dependency on impact resistance, etc. are improved. It is used in various fields such as parts. However, with regard to the polycarbonate ZABS resin composition, it is necessary to develop a polycarbonate resin composition with higher fluidity in order to cope with the recent trend of larger size and thinner wall.
- polylactic acid a plant-derived resin
- This polylactic acid is made from plants such as corn and sugarcane, and is ultimately decomposed into water and carbon dioxide (carbon neutral). Development is progressing.
- Polycarbonate and polylactic acid are both hygroscopic resins, so they can be added after long-term use. Since water decomposition occurs, the usable fields are limited.
- Patent Document 2 an aromatic polycarbonate Z polylactic acid alloy is known as a resin composition having pearl luster (see, for example, Patent Document 2).
- Patent Document 2 does not mention the hydrolysis resistance of polycarbonate / polylactic acid alloy, and it is desirable to further improve the impact resistance.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-327803 (Claim 13)
- Patent Document 2 JP-A-7-109413
- the present invention has been made in view of the above circumstances, and is resistant to water with respect to a resin composition comprising a polycarbonate resin and a polylactic acid-based resin having both the mechanical properties of polycarbonate and the excellent fluidity of polylactic acid. It is an object of the present invention to provide a thermoplastic resin composition capable of improving the decomposability and obtaining a molded product having further improved impact resistance and thin wall falling weight impact strength.
- the present inventors have added a bulle graft copolymer to a resin composition comprising a polycarbonate resin and a polylactic acid resin. This improves hydrolysis resistance and impact resistance. At the same time, it improves the impact strength of the thin falling weight, and by using a polycarbonate-polyorganosiloxane copolymer in combination with polycarbonate, flame retardancy is achieved. It was found that this can be improved.
- the present invention has been completed on the basis of strong knowledge.
- the present invention provides the following thermoplastic resin composition and molded article.
- thermoplastic resin composition comprising 5 to 65 parts by mass.
- (C) Biel graft copolymer strength S acrylonitrile-butadiene-styrene copolymer (ABS resin), methyl methacrylate-butadiene styrene copolymer (MBS resin)
- ABS resin acrylonitrile-butadiene-styrene copolymer
- MVS resin methyl methacrylate-butadiene styrene copolymer
- the thermoplastic resin composition according to 1 above which is at least one selected from acrylonitrile-acrylic rubber-styrene copolymer (AAS resin) and acrylonitrile- (ethylene 'propylene' gen rubber) -styrene copolymer (AES resin) .
- thermoplastic resin composition of any one of the above 1 to 3, which is a polycarbonate resin containing a polycarbonate-polyorganosiloxane copolymer or a polycarbonate-polyorganosiloxane copolymer.
- thermoplastic resin composition according to any one of 1 to 4 above.
- thermoplastic resin composition of the present invention As the polycarbonate resin of component (A), there are various forces that are not particularly limited.
- General Formula (1)
- R 1 and R 2 are each a halogen atom (for example, chlorine, fluorine, bromine, iodine) or an alkyl group having 1 to 8 carbon atoms (for example, a methinore group, an ethyl group, a propyl group).
- n and n are each an integer of 0 to 4.
- R 1 may be the same or different from each other, and n is 2 to 4.
- R 2 are the same but different It may be.
- Z is an alkylene group having 1 to 8 carbon atoms or an alkylidene group having 2 to 8 carbon atoms (for example, a methylene group, an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group, an ethylidene group, an isopropylidene group).
- a cycloalkylene group having 5 to 15 carbon atoms or a cycloalkylidene group having 5 to 15 carbon atoms for example, a cyclopentylene group, a cyclohexylene group, a cyclopentylidene group, a cyclohexylidene group, etc.
- the above polymer is usually represented by the general formula (3)
- R 1 R 2 , Z, m and n are the same as those in the general formula (1).
- divalent phenol can be produced by reacting divalent phenol with a carbonate precursor such as phosgene in a solvent such as methylene chloride in the presence of a known acid acceptor or molecular weight regulator.
- carbon such as divalent phenol and carbonate compounds. It can also be produced by transesterification with a nate precursor.
- Bivalent phenols other than bisphenol A include, for example, bis (4-hydroxyphenyl) methane; 1,1-bis (4hydroxyphenyl) ethane; 1,2 bis (4hydroxyphenol).
- Bis (4-hydroxyphenyl) alkanes 1,1 bis (4-hydroxyphenyl) cyclohexane; bis (4-hydroxyphenyl) cycloalkanes such as 1,1 bis (4-hydroxyphenyl) cyclodecane, 4, 4'-dihydroxydiphenyl, bis (4-hydroxyphenyl) oxide, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) sulfone, bis (4-hydroxyphenyl) sulfoxide, Bis (4-hydroxyphenyl) ketone and the like can be mentioned.
- hydroquinone etc. are mentioned as a bivalent phenol.
- divalent phenols may be used alone or in combination of two or more.
- Examples of the carbonate compound include diaryl carbonates such as diphenyl carbonate, and dialkyl carbonates such as dimethyl carbonate and jetyl carbonate.
- the polycarbonate resin may be a homopolymer using one of the above divalent phenols, or may be a copolymer using two or more.
- thermoplastic random branched polycarbonate resin obtained by using a polyfunctional aromatic compound in combination with the above divalent phenol may be used.
- the polyfunctional aromatic compound is generally referred to as a branching agent, specifically, 1, 1, 1 tris (4-hydroxyphenenole) ethane, hi, hi,, hi "tris (4— Hydroxyphenyl) 1,3,5_triisopropylbenzene, 1- [one-methyl mono- (4'-hydroxyphenyl) ethyl] _4_ [hi ,,, bi-bis (4 "-hydroxy Phenenole) ethinole] benzene, phlorognoresin, trimellitic acid, isatin bis (o cresol), and the like.
- Polycarbonate resins having such characteristics are commercially available as aromatic polycarbonate resins such as Taflon FN3000A, FN 2500A, FN2200A, FN1900A, FN1700A, and FN1500 (trade name, manufactured by Idemitsu Kosan Co., Ltd.). Yes.
- the polycarbonate resin used in the present invention is not only a homopolymer produced using only the above-mentioned divalent phenol, but also a polycarbonate-polyorganosiloxane copolymer (hereinafter referred to as PC-POS copolymer). Or a polycarbonate resin containing a PC-PS copolymer, which is preferable because it increases impact resistance and flame retardancy. Further, from the viewpoint of flame retardancy and impact resistance, the PC-POS copolymer alone is more preferable as the polycarbonate resin used in the present invention.
- PC-POS copolymers there are various types of PC-POS copolymers.
- the following general formula (1) the following general formula (1)
- R 3 , R 4 and R 5 are each a hydrogen atom, an alkyl group having 1 to 5 carbon atoms (eg, a methyl group, an ethyl group, a propyl group, an n-butyl group, an isobutyl group, etc.) or a phenyl group.
- P and q are each an integer of 0 or 1, and the sum of forces p and q is an integer of 1 or more.
- the degree of polymerization of the polycarbonate part is preferably 3 to 100 force
- the degree of polymerization of the polyorganosiloxane part is preferably 2 to 500 force.
- the PC-POS copolymer includes a polycarbonate part having a repeating unit represented by the general formula (1) and a polyorganosiloxane having a repeating unit represented by the general formula (4).
- a block copolymer is
- Such a PC-POS copolymer has, for example, a polycarbonate oligomer (hereinafter abbreviated as a PC oligomer) constituting a polycarbonate part produced in advance, and a reactive group at the terminal constituting the polyorganosiloxane part.
- Dissolve polyorganosiloxane eg, polydimethylsiloxane (PDMS), polydialkylsiloxane such as polyjetylsiloxane or polymethylphenylsiloxane
- a solvent such as methylene chloride, black benzene, black mouth form, etc.
- a solvent such as methylene chloride, black benzene, black mouth form, etc.
- a solvent such as methylene chloride, black benzene, black mouth form, etc.
- It can be prepared by adding an aqueous sodium hydroxide solution of bisphenol and using, for example, triethylamine or trimethylbenzyl ammonium chloride
- PC-POS copolymer produced by the method described in JP-B-44 30105 or the method described in JP-B-45-20510 can also be used.
- the PC oligomer having the repeating unit represented by the general formula (1) is a solvent method, that is, in the presence of a known acid acceptor or molecular weight regulator in a solvent such as methylene chloride. It can be easily produced by reacting the divalent phenol represented by the formula (3) with a carbonate precursor such as phosgene or a carbonate compound.
- a reaction between a divalent phenol and a carbonate precursor such as phosgene, or a divalent phenol and a carbonate ester compound in the presence of a known acid acceptor or molecular weight regulator, a reaction between a divalent phenol and a carbonate precursor such as phosgene, or a divalent phenol and a carbonate ester compound. It can be produced by a transesterification reaction with such a carbonate precursor.
- carbonate ester compound the same ones as described above can be used, and as the molecular weight regulator, the same ones as the terminal terminators described later can be used.
- the PC oligomer used for the production of the PC-POS copolymer may be a homopolymer using the above divalent phenol species, or a copolymer using two or more species. May be. Furthermore, a thermoplastic random branched polycarbonate resin obtained by using a polyfunctional aromatic compound in combination with the above divalent phenol may be used.
- R 6 represents an alkyl group having 1 to 35 carbon atoms, and a represents an integer of 0 to 5.
- R 6 is an alkyl group having 1 to 35 carbon atoms, and may be linear or branched.
- the bond position may be any of p-position, m-position and o-position, but p-position is preferred.
- the polycarbonate resin having a terminal group represented by the general formula (5) can be easily produced by reacting divalent phenol with phosgene or a carbonate ester compound.
- the divalent phenol may be the same as or different from the compound represented by the general formula (3).
- it may be a homopolymer using the above divalent phenol species or a copolymer using two or more species.
- thermoplastic random branched polycarbonate resin obtained by using a polyfunctional aromatic compound in combination with the above divalent phenol may be used.
- Examples of the carbonate compound include diaryl carbonates such as the above diphenyl carbonate, dianoleno carbonates such as dimethylol carbonate and jetino carbonate. Is mentioned.
- a phenol compound in which the terminal group represented by the general formula (5) is formed may be used. That is, it is a phenol compound represented by the following general formula (6).
- R 6 represents an alkyl group having 1 to 35 carbon atoms, and a represents an integer of 0 to 5.
- alkylphenols include phenol, p_cresol, p_tert-butylphenol, p-tert-octinolephenol, p-cuminolevenol, p-nonylphenol, docosylphenol, tetracosyl
- examples thereof include phenol, hexacosylphenol, octacosylphenol, triacontylphenol, dotriacontylphenol, and tetratriacontylphenol. These may be one kind or a mixture of two or more kinds.
- alkylphenols can be used in combination with other phenolic compounds as long as the effects are not impaired.
- the polycarbonate resin produced by the above method has a terminal group represented by the general formula (5) at one end or both ends of the molecule.
- the viscosity average molecular weight of the polycarbonate resin used as the component (A) is usually 14,000 to 40,000. If the viscosity average molecular weight is 14,000 or more, the resulting thermoplastic resin composition has sufficient heat resistance and mechanical properties, and if the viscosity average molecular weight is less than 000, the resulting thermoplastic resin composition has sufficient heat resistance and mechanical properties. This is because the moldability of the resin composition is improved.
- the viscosity average molecular weight of the polycarbonate resin is preferably 14,000 to 30,000, and more preferably 17,000 to 22,000 from the viewpoint of balance of mechanical properties and the like.
- the polylactic acid-based resin as the component (B) includes polylactic acid and copolymers of lactic acids and other hydroxycarboxylic acids.
- Polylactic acid is synthesized from a cyclic dimer of lactic acid, commonly called lactide, by ring-opening polymerization, and the production method thereof is described in US Pat. No. 1,995,970, US Pat. No. 2,362,51 1 No. 2, 683, 136, and the like.
- Copolymers of lactic acid and other hydroxycarboxylic acids are usually synthesized by ring-opening polymerization from a cyclic ester intermediate of lactide and hydroxycarboxylic acid, and the production method is described in US Pat. No. 3,635,956. U.S. Pat. No. 3,797,499 and the like.
- lactic acids and, if necessary, other hydroxycarboxylic acids are preferably used in an organic solvent, particularly a phenyl ether solvent.
- an organic solvent particularly a phenyl ether solvent.
- water is removed from the solvent distilled by azeotropy, and polymerization is carried out by returning the substantially anhydrous solvent to the reaction system.
- a polylactic acid resin having a polymerization degree suitable for the invention can be obtained.
- lactic acid As a raw material, it is possible to use L_ and D_ lactic acid, or a mixture thereof, and a lactide which is a dimer of lactic acid.
- hydroxycarboxylic acids that can be used in combination with lactic acids include glycolic acid, 3_hydroxybutyric acid, 4-hydroxybutyric acid, 4-hydroxyvaleric acid, 5-hydroxyvaleric acid, 6_hydroxycaproic acid, etc.
- Cyclic ester intermediates of hydroxycarboxylic acid for example, glycolide, which is a dimer of glycolic acid, and ⁇ -force prolatatone, which is a cyclic ester of 6-hydroxycaproic acid, can also be used.
- an appropriate molecular weight regulator, a branching agent, and other modifiers can be blended.
- lactic acids and hydroxycarboxylic acids as copolymer components can be used alone or in combination of two or more, and two or more of the obtained polylactic acid resins are mixed. You can use it.
- polylactic acid which is a polymer of only lactic acids is preferably used, and poly L-lactic acid resin is particularly preferable.
- the polylactic acid resin of component (B) used in the present invention preferably has a weight average molecular weight of 30,000 or more, preferably having a large molecular weight from the viewpoint of thermal properties and mechanical properties.
- the content ratio of the polycarbonate resin of component (A) and the polylactic acid resin of component (B) is in the range of 50:50 to 95: 5, preferably in the range of 60:40 to 80:20. It is.
- thermoplastic resin composition of the present invention has good mechanical strength, thermal stability and molding stability, and will be described later.
- C The dispersion of the bulle graft copolymer, which is a component, is improved.
- the bulle-type graft copolymer of component (C) is specifically an aromatic vinyl type in the presence of the rubbery polymer (e). Copolymerizing at least one monomer selected from the group consisting of the monomer (b), the cyanated bull monomer (c) and other vinyl monomers (d) copolymerizable therewith.
- Graft copolymer (C 1), aromatic bulle monomer (b), cyanobimer monomer (c), and other bulle monomers copolymerizable with these (d) ) Is preferably composed of at least one type of Bulle polymer (C-2) selected from the group consisting of
- the rubbery polymer (e) used in the graft copolymer (C-1) is not particularly limited, but those having a glass transition temperature of 0 ° C or lower are preferred, and gen-based rubber, acrylic Rubber or ethylene rubber can be used.
- Specific examples of the rubbery polymer include polybutadiene, styrene-butadiene copolymer, styrene-butadiene block copolymer, acrylonitrile-butadiene copolymer, butyl acrylate-butadiene copolymer, polyisoprene, butadiene.
- examples of these rubber polymers include polybutadiene, styrene butadiene copolymer, styrene butadiene block copolymer, and the like. Polymers and acrylonitrile-butadiene copolymers are preferably used from the viewpoint of impact resistance.
- the weight average particle diameter of the rubbery polymer (e) constituting the graft copolymer (C-1) is not particularly limited, but 0.:! To 2 xm is preferable, more preferably 0. The range of 2 to lxm is preferable from the viewpoint of impact strength.
- Rubbery polymers (e) can be used alone or in a mixture of two or more.
- the aromatic bur monomer (b) used in the graft copolymer (C 1) and the bulle polymer (C 2) is not particularly limited, but is styrene, ⁇ -methyl styrene, biertruene, ⁇ Strength including ethyl styrene, p-t butyl styrene, etc. Styrene is particularly preferred. These can be used alone or in combination of two or more.
- cyan vinyl monomer (c) used in the graft copolymer (C-1) and the bull polymer (C-2), but acrylonitrile, metathalonitrile, Examples include rilonitrile, and acrylonitrile is most preferably used. These can be used alone or in combination of two or more.
- the other copolymerizable bull monomers (d) used in the graft copolymer (C 1) and the vinyl polymer (C 2) are aromatic vinyl monomers (b) )
- vinyl cyanide monomer (c) are not particularly limited as long as they can be copolymerized with them, but unsaturated carboxylic acid alkyl ester monomers (a) are preferred, Particularly preferred are acrylic acid esters having 1 to 6 carbon atoms or substituted alkyl groups and Z or methacrylic acid esters.
- the graft copolymer (C1) is a rubber polymer (e) in the presence of 10 to 80 parts by weight, preferably 20 to 70 parts by weight, more preferably 30 to 60 parts by weight.
- the production method of the graft copolymer (C-11) and the vinyl copolymer (C-12) is not particularly limited, and known polymerization methods such as bulk polymerization, solution polymerization, suspension polymerization and emulsion polymerization can be used. It can be obtained by law.
- the mixing ratio of the graft copolymer (C_l) constituting the vinyl graft copolymer of component (C) and the vinylol copolymer (C-2) is preferably a graft copolymer ( C— 1) 10 to: 100 parts by mass, Bull copolymer (C_2) 0 to 90 parts by mass, more preferably graft copolymer (C 1) 20 to 60 parts by mass, Bull system copolymer
- the ratio of polymer (C 1 2) is 0 to 80 parts by mass. If the graft copolymer (C-1) is less than 10 parts by mass, the impact resistance of the vinyl graft copolymer (C) may be insufficient.
- (C) rubber-like polymer contained in the vinyl-based graft copolymer component content of (e) is 5 to 30 mass 0/0 more preferably preferably 10 to 20 mass 0 / 0 . If the rubber polymer (e) is less than 5% by mass, the impact resistance is insufficient, and if it exceeds 30% by mass, the molding processability may be impaired.
- this bur graft copolymer include, for example, acrylonitrile / butadiene rubber / styrene copolymer (ABS resin), methyl methacrylate / butadiene rubber / styrene copolymer (MBS resin), Examples include acrylonitrile-acrylic rubber-styrene copolymer (A AS resin) and acrylonitrile mono (ethylene 'propylene' gen rubber) monostyrene copolymer (AES resin). ABS resin and MBS resin are preferred from the standpoints of improving hydrolysis resistance and improving impact resistance.
- the amount of addition of the (C) component of the bull graft copolymer is 5 with respect to 100 parts by mass of the polycarbonate resin composition comprising (A) a polycarbonate resin and (B) a polylactic acid resin. -65 parts by mass, preferably 10-30 parts by mass.
- thermoplastic resin composition of the present invention is obtained by blending the above components (A), (B) and (C) with other components as necessary, and melt-kneading. be able to.
- This blending and kneading can be performed by commonly used methods such as ribbon blender, Henschel mixer, Banbury mixer, drum tumbler, single screw extruder, twin screw extruder, conida, multi-screw extrusion. It can be performed by a method using a machine or the like.
- the heating temperature for melt kneading is usually selected in the range of 220 to 260 ° C.
- the present invention also provides a molded article made of the thermoplastic resin composition.
- the molding temperature of the thermoplastic resin composition of the present invention is also usually selected in the range of 220 to 260 ° C.
- thermoplastic resin composition of the present invention combines the mechanical properties of polycarbonate with the excellent fluidity of polylactic acid resin, and also has hydrolysis resistance, and has impact resistance and thin wall falling weight impact strength.
- An improved molded product can be obtained.
- Chicks molded products can be used for a long period of time, and can be advantageously used industrially for large molded products as well as improved thin-wall moldability and portability.
- flame retardant properties can be improved by using a polycarbonate-polyonoleganosiloxane copolymer together, and it can be advantageously used in equipment such as equipment, information / communication equipment, automobile parts, building materials, and home appliances. can do.
- Moisture resistance retention rate An exposure test for 48 hours under conditions of 110 ° C and 100% RH, and a tensile test according to JIS K7162 [Test conditions, etc .: 23 ° C, wall thickness 0.32 mm (lZ8 inch) The elongation retention was measured.
- Izod impact strength Measured according to ASTM D256. [Test conditions: 23 ° C, wall thickness 0.32 mm (lZ8 inches)]
- the measurement was performed at a weight of 3.76 kg, a drop speed of 5 mZ seconds, and 23 ° C.
- Fluidity Measured at a molding temperature of 260 ° C, a mold temperature of 80 ° C, a wall thickness of 2 mm, a width of 10 mm, and an injection pressure of 7.9 MPa. (Unit: cm)
- Ingredients (A) to (C) are blended in the proportions shown in Table 1 and supplied to a vented twin-screw extruder (model name: TEM35, manufactured by Toshiba Machine Co., Ltd.), melted and kneaded at 240 ° C. And pelletized.
- a vented twin-screw extruder model name: TEM35, manufactured by Toshiba Machine Co., Ltd.
- phosphorus antioxidants trade name “Adekastab PEP-36” manufactured by Asahi Denka Kogyo Co., Ltd.
- phenolic antioxidants Ilganox 1 076 [Ciba Specialty] were used as stabilizers.
- (A) _ 1 Bisphenol A polycarbonate with a viscosity average molecular weight of 17 500 (FN1700A, manufactured by Idemitsu Kosan Co., Ltd.)
- (A) _ 2 PC_PDMS (polycarbonate-polydimethylsiloxane copolymer), viscosity average molecular weight is 17,000, PDMS (polydimethylsiloxane) content is 4.0 mass%, Prepared according to Production Example 4.
- (C)-1 ABS resin; AT-05 (manufactured by Nippon A & L Co., Ltd.)
- (C)-2 MBS resin; Ecopact K_ 300G (Dainippon Ink Chemical Co., Ltd.)
- thermoplastic resin composition of the present invention is obtained by adding a bulle graft copolymer to a resin composition comprising a polycarbonate resin and a polylactic acid resin. It is possible to obtain a molded body having fluidity and hydrolysis resistance, and improved impact resistance and thin drop weight impact strength.
- thermoplastic resin composition of the present invention flame retardancy can be improved by using a polycarbonate-polynoreganosiloxane copolymer as a polycarbonate resin component. It can be advantageously used in communication equipment, automobile parts, building materials, and home appliances.
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US11/814,034 US8410214B2 (en) | 2005-01-18 | 2005-12-27 | Thermoplastic resin composition and molded product |
DE112005003395T DE112005003395T5 (de) | 2005-01-18 | 2005-12-27 | Thermoplastische Harzzusammensetzung und pressgeformtes Produkt |
CN2005800468487A CN101103074B (zh) | 2005-01-18 | 2005-12-27 | 热塑性树脂组合物及成型物 |
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JP2005010282A JP2006199743A (ja) | 2005-01-18 | 2005-01-18 | 熱可塑性樹脂組成物および成形体 |
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JP (1) | JP2006199743A (ja) |
KR (1) | KR20070104555A (ja) |
CN (1) | CN101103074B (ja) |
DE (1) | DE112005003395T5 (ja) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2084208A2 (en) * | 2006-11-21 | 2009-08-05 | Arkema Inc. | Translucent and opaque impact modifiers for polylactic acid |
US8071694B2 (en) * | 2008-02-20 | 2011-12-06 | Sabic Innovative Plastics Ip B.V. | Thermoplastic polycarbonate/polyester blend compositions with improved mechanical properties |
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Also Published As
Publication number | Publication date |
---|---|
US20080051508A1 (en) | 2008-02-28 |
US8410214B2 (en) | 2013-04-02 |
JP2006199743A (ja) | 2006-08-03 |
CN101103074A (zh) | 2008-01-09 |
TW200632033A (en) | 2006-09-16 |
TWI389974B (zh) | 2013-03-21 |
CN101103074B (zh) | 2011-07-27 |
DE112005003395T5 (de) | 2007-12-06 |
KR20070104555A (ko) | 2007-10-26 |
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