WO2010100865A1 - 芳香族ポリカーボネート樹脂組成物及びその成形品 - Google Patents
芳香族ポリカーボネート樹脂組成物及びその成形品 Download PDFInfo
- Publication number
- WO2010100865A1 WO2010100865A1 PCT/JP2010/001225 JP2010001225W WO2010100865A1 WO 2010100865 A1 WO2010100865 A1 WO 2010100865A1 JP 2010001225 W JP2010001225 W JP 2010001225W WO 2010100865 A1 WO2010100865 A1 WO 2010100865A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aromatic polycarbonate
- resin
- polycarbonate resin
- resin composition
- flame retardant
- Prior art date
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 93
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
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- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
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- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 2
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 2
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- JGTNAGYHADQMCM-UHFFFAOYSA-M 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F JGTNAGYHADQMCM-UHFFFAOYSA-M 0.000 description 1
- YFSUTJLHUFNCNZ-UHFFFAOYSA-M 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-M 0.000 description 1
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical class C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
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- 239000011733 molybdenum Substances 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical class CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 1
- ZPBSAMLXSQCSOX-UHFFFAOYSA-K naphthalene-1,3,6-trisulfonate(3-) Chemical compound [O-]S(=O)(=O)C1=CC(S([O-])(=O)=O)=CC2=CC(S(=O)(=O)[O-])=CC=C21 ZPBSAMLXSQCSOX-UHFFFAOYSA-K 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical class OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001843 polymethylhydrosiloxane Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011970 polystyrene sulfonate Substances 0.000 description 1
- 229960002796 polystyrene sulfonate Drugs 0.000 description 1
- 229920002742 polystyrene-block-poly(ethylene/propylene) -block-polystyrene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011591 potassium Chemical group 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940006186 sodium polystyrene sulfonate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical group [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- VRRIVXLVXXAHJA-UHFFFAOYSA-N tris(2,3,4-tribromophenyl) phosphate Chemical compound BrC1=C(Br)C(Br)=CC=C1OP(=O)(OC=1C(=C(Br)C(Br)=CC=1)Br)OC1=CC=C(Br)C(Br)=C1Br VRRIVXLVXXAHJA-UHFFFAOYSA-N 0.000 description 1
- FFULTTXGZNPTQO-UHFFFAOYSA-N tris(2-bromoethyl) phosphate Chemical compound BrCCOP(=O)(OCCBr)OCCBr FFULTTXGZNPTQO-UHFFFAOYSA-N 0.000 description 1
- HQUQLFOMPYWACS-UHFFFAOYSA-N tris(2-chloroethyl) phosphate Chemical compound ClCCOP(=O)(OCCCl)OCCCl HQUQLFOMPYWACS-UHFFFAOYSA-N 0.000 description 1
- BHYQWBKCXBXPKM-UHFFFAOYSA-N tris[3-bromo-2,2-bis(bromomethyl)propyl] phosphate Chemical compound BrCC(CBr)(CBr)COP(=O)(OCC(CBr)(CBr)CBr)OCC(CBr)(CBr)CBr BHYQWBKCXBXPKM-UHFFFAOYSA-N 0.000 description 1
- NSBGJRFJIJFMGW-UHFFFAOYSA-N trisodium;stiborate Chemical compound [Na+].[Na+].[Na+].[O-][Sb]([O-])([O-])=O NSBGJRFJIJFMGW-UHFFFAOYSA-N 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- PZRXQXJGIQEYOG-UHFFFAOYSA-N zinc;oxido(oxo)borane Chemical compound [Zn+2].[O-]B=O.[O-]B=O PZRXQXJGIQEYOG-UHFFFAOYSA-N 0.000 description 1
- QSGNKXDSTRDWKA-UHFFFAOYSA-N zirconium dihydride Chemical compound [ZrH2] QSGNKXDSTRDWKA-UHFFFAOYSA-N 0.000 description 1
- 229910000568 zirconium hydride Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—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 a halogen; Compositions of derivatives of such polymers
- C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- 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
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
-
- 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
Definitions
- the present invention relates to an aromatic polycarbonate resin composition and a molded article thereof. Specifically, it has flame hardness, a surface hardness that does not require a hard coat layer, and has excellent heat resistance, storage stability, and recyclability.
- the present invention relates to an excellent aromatic polycarbonate resin composition.
- PC resin is used as the material for the housing and external parts, the surface hardness of PC resin is not sufficient. Therefore, in order to prevent scratches and maintain the appearance, PC resin It is necessary to form a protective layer on the surface.
- Japanese Patent Publication No. 3-74629 and Japanese Patent Publication No. 6-2374 propose a PC resin in which a hard coat layer is provided on the surface using an acrylic monomer or an organoalkoxysilane monomer.
- an additional protective layer is formed in this way, the number of steps increases as a manufacturing process, and thus a cost increase such as material costs and labor costs becomes a heavy burden.
- the protective layer is a separate material, recycling becomes difficult, which not only goes against resource protection, but also increases the load on the environment.
- a phosphoric acid flame retardant such as a phosphoric ester is usually added to the flame retardant PC resin currently in practical use.
- the phosphoric acid flame retardant tends to cause hydrolysis and thermal decomposition, and it is necessary to increase the amount of addition to the PC resin.
- the PC-based resin composition to which a phosphoric acid-based flame retardant is added has a problem that gas is generated during injection molding, the heat resistance of the resin composition, storage stability under high temperature and high humidity conditions, and There are problems such as significant reduction in recyclability.
- thermoplastic resin is, for example, a styrene resin or a polyester resin
- aromatic vinyl resin is, for example, a polystyrene sulfonate metal salt.
- component (D) for example, 0.02 to 5 parts by mass of a drip inhibitor that is a fluorine-based resin may be blended, and as the component (E), 0.1 to 10 parts by mass of a functional group-containing silicone compound is contained. It may be blended.
- Patent Document 1 discloses a flame retardant that can obtain a molded article having excellent fluidity, solvent resistance, and flame retardancy, and having excellent antistatic performance without dust adhesion, by the above-described configuration. It is stated that a functional polycarbonate resin composition can be provided.
- Patent Document 2 described later, the same applicant as in Patent Document 1 (A) aromatic polycarbonate resin 60 to 97% by mass and (B) a melt flow rate (MFR) at 200 ° C. under a load of 5 kg is 5 or more. (C) 0 to 37 parts by mass of an impact resistance improver (D) with respect to a total of 100 parts by mass of (A) and (B) as necessary.
- A aromatic polycarbonate resin 60 to 97% by mass and (B) a melt flow rate (MFR) at 200 ° C. under a load of 5 kg is 5 or more.
- C 0 to 37 parts by mass of an impact resistance improver (D) with respect to a total of 100 parts by mass of (A) and (B) as necessary.
- Patent Document 2 discloses that as component (B), an acrylonitrile-styrene resin having a melt flow rate (MFR) at 200 ° C. under a load of 5 kg of 5 or more is used, while maintaining flame retardancy and heat resistance. It has been stated that a significant increase in fluidity of the group polycarbonate resin composition has become possible. Furthermore, it is stated that when an impact resistance improver is added, a molded article having high impact resistance can be obtained.
- MFR melt flow rate
- JP 2002-220527 A (claims 1-7, pages 4-6 and 9-11, Example 4-6) JP 2004-143410 A (Claim 1, pages 7-13, Example 6) Japanese Patent Laying-Open No. 2005-54085 (Claims 1, 3-7, 9 and 10 and Example 4)
- Patent Documents 1 to 3 disclose aromatic polycarbonate resins, acrylonitrile-styrene resins, polyfluoroolefin resins, and organic sulfonic acids as flame retardant PC resins containing no halogen flame retardant or phosphoric acid flame retardant.
- flame retardant polycarbonate resin compositions containing a salt flame retardant and a silicon flame retardant are shown, sufficient flame retardant properties have not yet been obtained and required for home appliances The thin flame retardant properties have not been satisfied. Moreover, surface hardness is not examined.
- the present invention has been made in view of such a situation, and its purpose is to have high flame retardancy even when thin, has a surface hardness that does not require a hard coat layer, and generates less gas during molding.
- Another object of the present invention is to provide a polycarbonate resin composition that is excellent in heat resistance, storage stability, and recyclability and that does not contain bromine-based and phosphoric acid-based flame retardants, and molded articles thereof.
- a resin material obtained by mixing an aromatic polycarbonate resin having a predetermined weight average molecular weight and a polystyrene resin not containing a rubber component at a predetermined mass fraction has flame retardancy.
- the inventors have found that the above-mentioned problems can be solved by adding a predetermined material to be provided, and have completed the present invention.
- the present invention is as a main resin material, An aromatic polycarbonate resin having a weight average molecular weight of 37000 to 55000 in terms of polystyrene, accounting for 85 to 95% by mass of the main resin material; A polystyrene-based resin that does not contain a rubber component and occupies 15 to 5% by mass of the main resin material. A polyfluoroolefin resin; An organic sulfonate flame retardant; The present invention relates to an aromatic polycarbonate resin composition containing a silicon-based flame retardant, and to a molded product in which the aromatic polycarbonate resin composition is molded into a predetermined shape.
- the molecular weight in terms of polystyrene was considered to be the same as the molecular weight of a polystyrene molecular weight standard substance eluted with the same elution time as the sample in GPC (Gel Permeation Chromatography) measurement using chloroform as a solvent. , Is an estimate of the molecular weight.
- the “main” of the “main resin material” means that a resin component other than the main resin material may be included as long as the characteristics of the aromatic polycarbonate resin composition are not impaired. For example, it means that a case where a small amount of unspecified resin components are contained due to use of recycled raw materials is included.
- the aromatic polycarbonate resin having a weight average molecular weight of 37000 to 55000 in terms of polystyrene is such that the mechanical properties of the aromatic polycarbonate resin composition are as described in Examples below. It is suitable for maintaining strength (particularly impact resistance), flame retardancy, solvent resistance, flowability, and moldability moderately.
- the polystyrene resin improves the surface hardness, oil resistance, solvent resistance, and flowability of the aromatic polycarbonate resin composition.
- the polystyrene-based resin does not contain a rubber component, the mechanical strength and flame retardancy of the aromatic polycarbonate resin are hardly impaired, and a high surface hardness is obtained.
- the proportions of the aromatic polycarbonate resin and the polystyrene resin in the main resin material are 85 to 95% by mass and 15 to 5% by mass of the resin material, respectively, as shown in the examples described later, Both the mechanical strength and flame retardancy due to the aromatic polycarbonate resin and the surface hardness improvement effect due to the aromatic polycarbonate resin composition are both effectively exhibited.
- the polyfluoroolefin resin functions to suppress the drip phenomenon during combustion.
- the organic sulfonate flame retardant imparts flame retardancy to the aromatic polycarbonate resin composition.
- the silicon-based flame retardant prevents the continuation of combustion and makes it easy to extinguish the fire by covering the surface of the aromatic polycarbonate resin composition that is burning.
- these three effects are exhibited comprehensively and the required flame retardance is implement
- the aromatic polycarbonate resin composition is excellent in mechanical strength, surface hardness, solvent resistance, heat resistance, and storage stability under high temperature and high humidity, and has an appropriate flowability and molding process. Have sex.
- the aromatic polycarbonate resin and the polystyrene resin preferably occupy 93 to 95% by mass and 7 to 5% by mass of the main resin material, respectively.
- the addition amount of the polyfluoroolefin resin is 0.002 to 0.005 by mass ratio with respect to the main resin material.
- the addition amount of the organic sulfonate flame retardant is preferably 0.0005 to 0.010 by mass ratio with respect to the main resin material.
- the addition amount of the silicon-based flame retardant is preferably 0.001 to 0.020 by mass ratio with respect to the main resin material.
- the polystyrene resin preferably contains one or more kinds of polystyrene resins and / or one or more kinds of acrylonitrile-styrene copolymer resins.
- the organic sulfonate flame retardant contains a compound having a structure in which a salt of a sulfo group is introduced into a polymer having an aromatic ring.
- a number of sulfo group salts corresponding to 0.01 to 15% by mass in terms of sulfur content may be introduced into the organic sulfonate flame retardant.
- the silicon flame retardant preferably contains a polyorganosiloxane resin.
- the aromatic polycarbonate resin composition based on the embodiment of the present invention will be described in detail, but the present invention is not limited to these examples.
- the “main” of the “main resin material” means a range in which unspecified resin components do not impair the characteristics of the aromatic polycarbonate resin composition due to the use of recycled raw materials. In order to show that a small amount is included. Since there is no further essential meaning, in order to avoid complication, hereinafter, the “main resin material” is simply referred to as “the resin material”.
- aromatic polycarbonate resin An aromatic polycarbonate resin having a weight average molecular weight of 37,000 to 55,000 in terms of polystyrene is suitable for maintaining the mechanical strength, flame retardancy, solvent resistance, flowability and molding processability of the aromatic polycarbonate resin composition. It is suitable for
- An aromatic polycarbonate resin may be used individually by 1 type, and may mix and use 2 or more types.
- arithmetic average of weight average molecular weight ⁇ (weight average molecular weight of each aromatic polycarbonate resin component ⁇ content) It is necessary that the arithmetic average of the weight average molecular weight given by the above formula is in the range of 37000-55000. In addition, the sum of the above formula shall take the sum total about all the aromatic polycarbonate resin components.
- the weight average molecular weight of the aromatic polycarbonate resin is larger than 55000, the flowability and molding processability at the time of melting of the aromatic polycarbonate resin composition are deteriorated, and molding by injection molding or the like becomes difficult.
- the mechanical strength (especially impact strength) and flame retardancy of the resin composition will decrease, or solvent resistance will decrease and solvent cracks (cracks due to chemicals) will occur. It becomes easy.
- the ratio of the aromatic polycarbonate resin in the resin material is 85 to 95% by mass of the resin material, and more preferably 93 to 95% by mass.
- the ratio of the aromatic polycarbonate resin is less than 85% by mass, the mechanical strength and flame retardancy of the aromatic polycarbonate resin composition are lowered.
- it is more than 95% by mass the hardness of the surface portion of the aromatic polycarbonate resin composition is lowered.
- the structure of the aromatic polycarbonate resin is not particularly limited, but an aromatic polycarbonate resin synthesized by a reaction of a dihydric phenol and a carbonate precursor can be usually used.
- the dihydric phenol and carbonate precursor to be used are not particularly limited, and various types can be used.
- the synthesis method is not particularly limited, and examples thereof include an interfacial polymerization method, a melt transesterification method, a solid phase transesterification method of a carbonate prepolymer, and a ring-opening polymerization method of a cyclic carbonate compound.
- the aromatic polycarbonate resin may be a newly synthesized virgin material, waste material or waste generated in the manufacturing process, or a resin end material (spool used for manufacturing other aromatic polycarbonate resin products). Or a recovered material recovered from a used aromatic polycarbonate resin product.
- aromatic polycarbonate resin products include, for example, digital versatile disc (DVD; registered trademark), compact disc (CD; registered trademark), magneto-optical disc (MO; registered trademark), mini disc (MD; registered trademark), And optical discs such as a Blu-ray disc (BD; registered trademark), optical films for liquid crystal televisions, and containers such as water bottles.
- the resin When using aromatic polycarbonate resin recovered from used products, the resin has various deposits such as labels, films, metal reflective layers, plating layers, recording material layers, and adhesive layers. .
- a resin with these deposits attached may be used, or a resin after separating and removing the deposits by a conventionally known method may be used.
- the adhering material is not particularly limited, and includes a film forming material or a coating material usually used in an optical disk or the like.
- a film forming material or a coating material usually used in an optical disk or the like for example, polyolefin film (polyethylene film, polypropylene film, etc.), resin or paper label, aluminum Al, gold Au, silicon Si and other metal reflective layers, organic dyes containing cyanine dyes, tellurium Te, selenium Se, sulfur S, Recording material layers such as germanium Ge, indium In, antimony Sb, iron Fe, terbium Tb, cobalt Co, silver Ag, cerium Ce, and bismuth Bi, acrylic acrylate, ether acrylate, vinyl monomers, oligomers, and polymers Examples thereof include an adhesive layer composed of at least one kind, an ultraviolet curable monomer, an oligomer and a polymer, and a label ink layer in which a polymerization initiator, a pigment and an auxiliary agent are mixed.
- the resin can be reused while impurities are contained.
- the recovered aromatic polycarbonate resin can be finely crushed and used as an aromatic polycarbonate resin raw material (component A) as it is, or kneaded and melted with a predetermined additive and pelletized.
- the recovered aromatic polycarbonate resin is directly put into a hopper of an injection molding machine together with other resin components and various additives, and molded from the aromatic polycarbonate resin composition. You may get a body.
- the deposits can be removed by a mechanical or chemical method proposed in, for example, Japanese Patent Laid-Open Nos. 6-223416, 10-269634, and 10-249315. it can.
- polystyrene resin not containing a rubber component The polystyrene resin improves the surface hardness, oil resistance, solvent resistance, and flowability of the aromatic polycarbonate resin composition.
- the proportion of polystyrene resin in the resin material is 5 to 15% by mass, more preferably 5 to 7% by mass.
- the proportion of the polystyrene resin is less than 5% by mass, the hardness of the surface portion of the aromatic polycarbonate resin composition is lowered.
- the mechanical strength and flame retardancy of the aromatic polycarbonate resin composition are lowered.
- the polystyrene resin not containing the rubber component is not particularly limited.
- AS acrylonitrile-styrene copolymer
- PS polystyrene
- ASA acrylonitrile-styrene-acrylate copolymer
- the weight-average molecular weight of these polystyrene resins not containing a rubber component is generally 50,000 to 500,000 in terms of polystyrene, but preferably 100,000 to 300,000.
- the aromatic polycarbonate resin composition may not have an effect of improving oil resistance and solvent resistance, and mechanical characteristics such as impact resistance may be deteriorated. is there.
- the weight average molecular weight is larger than 500,000, the flowability of the aromatic polycarbonate resin composition may be lowered.
- the polystyrene-based resin not containing the rubber component may be a newly synthesized virgin material, a waste-based material or waste generated in the manufacturing process, or a polystyrene-based resin used for manufacturing other polystyrene-based resin products. It may be a resin end material (such as a spool material or a runner material) or a recovered material recovered from a used polystyrene resin product.
- a polystyrene resin product for example, a transparent reel material used for a commercial video cassette or a fan (blade) of a used fan may be used as the AS resin.
- polystyrene foam used as a shock absorber for fish boxes and home appliances, or polystyrene tray used for food may be used as the PS resin.
- the polyfluoroolefin resin functions to suppress a drip phenomenon during combustion in the aromatic polycarbonate resin composition.
- the addition amount of the polyfluoroolefin resin in the aromatic polycarbonate resin composition is preferably 0.002 to 0.005 (0.2 to 0.5%) by mass ratio with respect to the resin material.
- the addition amount of the polyfluoroolefin resin is less than 0.002 (0.2%) by mass ratio with respect to the resin material, it becomes difficult to suppress the drip phenomenon.
- the amount added is more than 0.005 (0.5%), the effect of suppressing the drip phenomenon is saturated, the efficiency is lowered, and the cost is increased, and the mechanical strength and flowability of the resin are lowered. The negative effect that makes it easier to appear.
- the polyfluoroolefin resin is not particularly limited, and examples thereof include polydifluoroethylene, polytetrafluoroethylene, a tetrafluoroethylene-hexafluoropropylene copolymer, and a copolymer of tetrafluoroethylene and an ethylene monomer. Examples include coalescence. These may be used alone or in combination of two or more. Among these, polytetrafluoroethylene is more preferable, and the average molecular weight is preferably 50,000 or more, more preferably 100,000 or more and 20,000,000 or less. In addition, as for polyfluoroolefin resin, what has fibril formation ability is more preferable.
- the organic sulfonate flame retardant is used for imparting flame retardancy to the aromatic polycarbonate resin composition.
- the addition amount of the organic sulfonate flame retardant in the aromatic polycarbonate resin composition is preferably 0.0005 to 0.010 (0.05 to 1.0%) by mass ratio with respect to the resin material. . If the addition amount of the organic sulfonate flame retardant is less than 0.0005 (0.05%) in mass ratio to the resin material, the effect of imparting flame retardancy to the aromatic polycarbonate resin composition is not sufficient. Absent. On the other hand, if the addition amount is more than 0.010 (1.0%), the efficiency is lowered due to the decrease in efficiency, the effect of imparting flame retardancy is saturated, and the efficiency is decreased.
- organic sulfonate flame retardant examples include organic sulfonates having at least one carbon atom.
- the organic sulfonate may be an alkali metal salt such as sodium salt, potassium salt, lithium salt and cesium salt, or an alkaline earth metal salt such as magnesium salt, calcium salt, strontium salt and barium salt. Further, it may be a salt of a metal element such as tin Sn and zinc Zn, or may be an ammonia salt or an organic alkylamine salt.
- the organic group of the organic sulfonate may be substituted with a halogen atom such as fluorine, chlorine and bromine.
- a halogen atom such as fluorine, chlorine and bromine.
- fluorine is most preferable, and alkali metal salts and alkaline earth metal salts of perfluoroalkanesulfonic acid represented by the general formula (CnF2n + 1SO3) mM are generally used (wherein n is 1 to 1).
- M is lithium, sodium, potassium, and cesium, or magnesium, calcium, strontium, barium, and the like, and m is equal to M valence 1 or 2.
- alkyl sulfonate examples include alkyl sulfonate, benzene sulfonate, alkyl benzene sulfonate, diphenyl sulfonate, naphthalene sulfonate, 2,5-dichlorobenzene sulfonate, 2,4,5-trichlorobenzene sulfonate.
- diphenyl sulfonate is particularly preferred.
- an aromatic polymer sulfonate in which a sulfo group is introduced into a high molecular weight aromatic polymer and converted into a salt is preferable.
- the aromatic polymer include both a polymer having an aromatic ring in the side chain and a polymer having an aromatic ring in the main chain, and the former is more preferable.
- polystyrene PS
- HIPS high impact polystyrene
- AS acrylonitrile-styrene copolymer
- AS acrylonitrile-butadiene-styrene copolymer
- ABS acrylonitrile-chlorinated polyethylene-styrene copolymer
- ACS acrylonitrile-styrene-acrylate copolymer
- AES acrylonitrile-ethylenepropylene rubber-styrene copolymer
- AEPDMS acrylonitrile-ethylene-propylene -Diene-styrene copolymer
- the weight-average molecular weight of the polymer having an aromatic ring in these side chains is preferably 50,000 to 1,000,000, particularly preferably 100,000 to 300,000 in terms of polystyrene.
- polystyrene resin examples include polycarbonate (PC), polyphenylene oxide (PPO), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and polysulfone (PSF). Among these, any 1 type or multiple types can be used.
- the weight average molecular weight of the polymer having an aromatic ring in the main chain is preferably 10,000 to 200,000 in terms of polystyrene, and particularly preferably 25,000 to 100,000.
- the content of the monomer unit having an aromatic ring is in the range of 1 mol% to 100 mol%, preferably in the range of 30 mol% to 100 mol%, more preferably. Is 40 mol% to 100 mol%. If the amount of monomer units having an aromatic ring is less than 1 mol%, the introduction rate of the sulfo group into the aromatic polymer becomes low, so that it is not possible to sufficiently impart flame retardancy to the aromatic polycarbonate resin composition.
- used recovered material or scrap material discharged in the factory can be used. Cost reduction can be achieved by using the recovered material and the end material as a raw material.
- a flame retardant capable of imparting high flame retardancy when contained in the aromatic polycarbonate resin composition.
- a method of introducing a sulfo group into an aromatic polymer for example, there is a method of sulfonating an aromatic polymer with a predetermined amount of a sulfonating agent.
- the sulfonating agent preferably contains less than 3% by weight of water.
- examples of the sulfonating agent include sulfuric anhydride, fuming sulfuric acid, chlorosulfonic acid, and polyalkylbenzenesulfonic acids. Any one of these can be used alone or in combination.
- a sulfonating agent for example, a complex with a Lewis base such as an alkyl phosphate ester or dioxane can be used.
- the introduction rate of the sulfo group into the aromatic polymer can be adjusted by the addition amount of the sulfonating agent, the reaction time of the sulfonating agent, the reaction temperature, the type and amount of the Lewis base, and the like. Among these methods, it is more preferable to adjust the addition amount of the sulfonating agent, the reaction time with the sulfonating agent, the reaction temperature, and the like.
- the introduction ratio of the sulfo group salt to the aromatic polymer is 0.01 to 15% by mass in terms of the sulfur content (mass% of sulfur in the aromatic polymer sulfonate), and more preferably. Is 0.1 to 5% by mass, and more preferably 0.5 to 3.5% by mass.
- the introduction rate of the sulfo group salt into the aromatic polymer is less than 0.01% by mass in terms of the sulfur content, it will be difficult to impart flame retardancy to the aromatic polycarbonate resin composition. Become. Further, when the introduction rate is greater than 15% by mass in terms of the sulfur content, the dispersibility in the aromatic polycarbonate resin composition is reduced, or the aromatic polycarbonate resin composition is susceptible to changes over time due to water absorption. Or the blooming time during combustion may become longer.
- the rate of introduction of the sulfo group salt into the aromatic polymer can be easily determined by quantitatively analyzing, for example, the sulfur content contained in the sulfonated aromatic polymer by a combustion flask method.
- the above high molecular weight aromatic polymer sulfonate is more preferable than the low molecular weight organic sulfonate from the viewpoint of compatibility with the aromatic polycarbonate resin, the effect of imparting flame retardancy, and the maintenance of resin properties.
- the silicon-based flame retardant is used for imparting flame retardancy to the aromatic polycarbonate resin composition.
- the addition amount of the silicon-based flame retardant in the aromatic polycarbonate resin composition is preferably 0.001 to 0.02 (0.1 to 2%) by mass ratio with respect to the resin material.
- the addition amount of the silicon-based flame retardant is less than 0.001 (0.1%) by mass ratio with respect to the resin material, the effect of imparting flame retardancy to the aromatic polycarbonate resin composition is not sufficient.
- the addition amount is more than 0.02 (2%)
- the efficiency is lowered due to the decrease in efficiency, the effect of imparting flame retardancy is saturated, and the efficiency is decreased.
- silicon flame retardant examples include polyorganosiloxane (such as silicone and organic silicate) and silica. Any one of these can be used alone or in combination.
- alkyl group portion of these polyorganosiloxanes examples include alkyl group, alkoxy group, hydroxy group, amino group, carboxy group, silanol group, mercapto group, epoxy group, vinyl group, aryloxy group, polyoxyalkylene group, hydrogen
- a functional group such as a group or a halogen group may be contained, and in particular, an alkyl group, an alkoxy group, a hydroxy group, a vinyl group, or the like is preferably contained. Of these, methylphenylsiloxane resin is most preferred.
- a methyl group, a phenyl group, a hydrogen group, and a methoxy group are preferable, and a methyl group and a phenyl group, a dimethyl group, a diphenyl group, a methyl group and a hydrogen group, a methyl group and a methoxy group, a phenyl group and a methoxy group, and a methoxy group
- a combination of hydrogen group and the like is preferable.
- the silicon-based flame retardant is a polyorganosiloxane resin
- the average molecular weight is 100 or more, preferably in the range of 500 to 5000000.
- the form is oil, varnish, gum, powder, and Any of pellets may be used.
- silica what was surface-treated with the silane coupling agent of a hydrocarbon type compound is suitable, but the above-mentioned polyorganosiloxane resin is more preferable.
- flame retardant ingredients In addition to the flame retardant described above, other flame retardants may be used in combination.
- other flame retardants include organic phosphate ester flame retardants, halogenated phosphate ester flame retardants, inorganic phosphorus flame retardants, halogenated bisphenol flame retardants, other halogen compound flame retardants, and antimony flame retardants.
- flame retardants nitrogen flame retardants, boric acid flame retardants, metal salt flame retardants, inorganic flame retardants, and silicon flame retardants. It can be used by mixing.
- organic phosphate ester flame retardant examples include triphenyl phosphate, methyl neobenzyl phosphate, pentaerythritol diethyl diphosphate, methyl neopentyl phosphate, phenyl neopentyl phosphate, pentaerythritol diphenyl diphosphate, dicyclopentyl high positive phosphate, dineo Examples thereof include pentyl hypophosphite, phenyl pyrocatechol phosphite, ethyl pyrocatechol phosphate, and dipyrrocatechol high positive phosphate. Any one of these can be used alone or in combination.
- halogenated phosphate ester flame retardant examples include tris ( ⁇ -chloroethyl) phosphate, tris (dichloropropyl) phosphate, tris ( ⁇ -bromoethyl) phosphate, tris (dibromopropyl) phosphate, tris (chloropropyl) phosphate, tris ( Examples thereof include dibromophenyl) phosphate, tris (tribromophenyl) phosphate, tris (tribromoneopentyl) phosphate, condensed polyphosphate, and condensed polyphosphinate. Any one of these can be used alone or in combination.
- inorganic phosphorus flame retardant examples include red phosphorus and inorganic phosphate. Any one of these can be used alone or in combination.
- halogenated bisphenol flame retardant examples include tetrabromobisphenol A and oligomers thereof, and bis (bromoethyl ether) tetrabromobisphenol A. Any one of these can be used alone or in combination.
- halogen compound flame retardants include decabromodiphenyl ether, hexabromobenzene, hexabromocyclododecane, tetrabromophthalic anhydride, (tetrabrobismophenol) epoxy oligomer, hexabromobiphenyl ether, tribromophenol, dibromocresyl
- glycidyl ether, decabromodiphenyl oxide, halogenated polycarbonate, halogenated polycarbonate copolymer, halogenated polystyrene, halogenated polyolefin, chlorinated paraffin, and perchlorocyclodecane Any one of these can be used alone or in combination.
- antimony flame retardant examples include antimony trioxide, antimony tetraoxide, antimony pentoxide, and sodium antimonate. Any one of these can be used alone or in combination.
- nitrogen-based flame retardant examples include melamine, alkyl group or aromatic substituted melamine, melamine cyanurate, isocyanurate, melamine phosphate, triazine, guanidine compound, urea, various cyanuric acid derivatives, and phosphazene compounds. Any one of these can be used alone or in combination.
- boric acid flame retardant examples include zinc borate, zinc metaborate, and barium metaborate. Any one of these can be used alone or in combination.
- metal salt flame retardant examples include alkali metal salts and alkaline earth metal salts such as perfluoroalkanesulfonic acid, alkylbenzenesulfonic acid, halogenated alkylbenzenesulfonic acid, alkylsulfonic acid, and naphthalenesulfonic acid. Any one of these can be used alone or in combination.
- inorganic flame retardants include inorganic metal compounds such as magnesium hydroxide, aluminum hydroxide, barium hydroxide, calcium hydroxide, dolomite, hydrotalcite, basic magnesium carbonate, zirconium hydride, and tin oxide hydrate. Hydrate, aluminum oxide, iron oxide, titanium oxide, manganese oxide, magnesium oxide, zirconium oxide, zinc oxide, molybdenum oxide, cobalt oxide, bismuth oxide, chromium oxide, tin oxide, nickel oxide, copper oxide, tungsten oxide, etc.
- inorganic metal compounds such as magnesium hydroxide, aluminum hydroxide, barium hydroxide, calcium hydroxide, dolomite, hydrotalcite, basic magnesium carbonate, zirconium hydride, and tin oxide hydrate. Hydrate, aluminum oxide, iron oxide, titanium oxide, manganese oxide, magnesium oxide, zirconium oxide, zinc oxide, molybdenum oxide, cobalt oxide, bismuth oxide, chromium oxide, tin oxide, nickel oxide
- Metal oxides such as metal oxides, aluminum, iron, copper, nickel, titanium, manganese, tin, zinc, molybdenum, cobalt, bismuth, chromium, tungsten, antimony, zinc carbonate, magnesium carbonate, calcium carbonate, and barium carbonate Such as carbonates. It is. Any one of these can be used alone or in combination.
- the amount of the conventionally known flame retardant described above varies depending on the type, the required level of flame retardancy, and the type of the aromatic polycarbonate resin composition to which flame retardancy is to be imparted, Usually, the mass ratio to the polycarbonate resin is 0 to 0.50 (0 to 50%), preferably 0 to 0.30 (0 to 30%), and more preferably 0 to 0.10 (0 to 10). %).
- the aromatic polycarbonate resin composition includes, for example, inorganic fillers, impact resistance improvers, antioxidants (hindered phenol-based, phosphorus-based, sulfur-based). System), antistatic agent, ultraviolet absorber (benzophenone, benzotriazole, hydroxyphenyltriazine, cyclic imino ester, cyanoacrylate), light stabilizer, plasticizer, compatibilizer, colorant (pigment, Dyes), light diffusing agents, light stabilizers, crystal nucleating agents, antibacterial agents, fluidity modifiers, antibacterial agents, infrared absorbers, phosphors, hydrolysis inhibitors, mold release agents, or surface treatment agents You may do it. Thereby, flame retardancy, injection moldability, impact resistance, appearance, heat resistance, weather resistance, color, rigidity, etc. are improved.
- the inorganic filler is used for the purpose of improving the mechanical strength of the aromatic polycarbonate resin composition and further improving the flame retardancy.
- examples of the inorganic filler include crystalline silica, fused silica, alumina, magnesia, talc, mica, kaolin, clay, diatomaceous earth, calcium silicate, titanium oxide, glass fiber, calcium fluoride, calcium sulfate, barium sulfate, and calcium phosphate. , Carbon fiber, carbon nanotube, potassium titanate fiber and the like. Any one of these can be used alone or in combination.
- talc, mica, carbon, and glass are preferably used, and talc is particularly preferable.
- the addition amount of the inorganic filler is 0.025 to 0.20 (2.5 to 20%), more preferably 0.05 to 0.15 (5 to 5%) by mass ratio with respect to the aromatic polycarbonate resin composition. 15%).
- the added amount of the inorganic filler is more than 0.20 by mass ratio with respect to the aromatic polycarbonate resin composition, the fluidity of the molten resin composition when the aromatic polycarbonate resin composition is injection-molded decreases. In some cases, the impact resistance may be reduced.
- the impact resistance improver is added for the purpose of improving the impact resistance of the aromatic polycarbonate resin composition.
- the impact resistance improver alone is effective in improving the toughness and elongation of the polycarbonate resin.
- the mixed system of the polycarbonate resin and the AS resin both are compatible with each other or partially reacted to be compatible. To improve the mechanical properties and moldability of the resin mixture.
- ABS resin styrene-butadiene rubber
- SBR styrene-butadiene rubber
- MVS methyl methacrylate-styrene resin
- MVS methyl methacrylate-butadiene-styrene
- isoprene-styrene rubber isoprene rubber
- polybutadiene (PB) butadiene- Rubber-like elastic bodies
- acrylic rubber isoprene-acrylic rubber, ethylene-propylene rubber, and others
- SBC vinyl chloride
- TPO polyolefin
- PU polyurethane
- TPEE polyester
- SEBS hydrogenated styrene thermoplastic elastomer
- SEPS hydrogenated styrene thermoplastic elastomer
- SBS Styrene-butadiene-styrene copolymer
- SIS styrene-isoprene-styrene block copolymer
- SIS styrene-vinyloxazoline copolymer
- epoxidized styrene elastomer etc.
- Polystyrene grafted with styrene and acrylonitrile-butadiene polymer petroleum resin obtained by polymerization of C5-C9 fraction, surface modification product by polymer of rubber fine particles, core shell with graft layer outside particulate rubber Of type ⁇ improver rubber component a butadiene rubber, the acrylic rubber, a silicone - can be exemplified as a preferable combination such as those of acrylic composite rubber.
- ABS resins HIPS resins, and styrene thermoplastic elastomers are particularly preferred.
- SEBS SEPS, SBS, styrene-hydrogenated butadiene-styrene copolymers, SIS, styrene-vinyl oxazoline copolymer, and epoxidized styrene elastomer.
- SEBS is most preferred.
- the impact resistance improving agent mentioned above may be used independently and may be used in combination of multiple types.
- the addition amount of the impact resistance improver is usually 0.002 to 0.10 (0.2 to 10%) by mass ratio with respect to the aromatic polycarbonate resin composition, and more preferably 0.005 to 0.00. It is 075% (0.5 to 7.5%), more preferably 0.01 to 0.05 (1 to 5%).
- the addition amount of the impact resistance improver is more than 0.1 (10%) by mass ratio to the aromatic polycarbonate resin composition, the flame retardancy and flowability of the aromatic polycarbonate resin composition are lowered.
- the aromatic polycarbonate resin composition can be produced, for example, as follows. First, the resin material and various additives are mixed. At this time, for example, it is dispersed substantially uniformly by a kneading apparatus such as a tumbler, a reblender, a mixer, an extruder, or a kneader. Next, the mixture is subjected to a predetermined shape such as home appliances, automobiles, information by a molding method such as injection molding, injection compression molding, extrusion molding, blow molding, vacuum molding, press molding, foam molding, or supercritical molding.
- the aromatic polycarbonate resin composition is completed by molding into shapes of housings and parts of various products such as equipment, office equipment, telephones, stationery, furniture, and fibers.
- ⁇ B component polystyrene (PS) resin not containing a rubber component>
- AS resin trade name: LITACK-A 120PF; manufactured by A & L Japan
- PS resin recovered from reels in discarded business video cassettes ⁇ B-3> PS resin recovered from used polystyrene foam ⁇ B-4>
- Comparative Example 6 contains a rubber component ABS resin (trade name DP-611; manufactured by Techno Polymer Co., Ltd.) was used as the PS resin.
- ⁇ C component polyfluoroolefin resin> ⁇ C-1> Polytetrafluoroethylene (PTFE) resin (trade name: Fluon PTFE fine powder CD076; manufactured by Asahi Glass Co., Ltd.)
- PTFE polytetrafluoroethylene
- the gas in the flask was removed using a vacuum pump, and the pressure was reduced to about 0.01 MPa.
- SO3 gas was fed into the flask from a tank that was preliminarily charged with 2.2 g of SO3 and heated to 60 ° C. by opening and closing the valve. By injecting SO3 gas, the pressure in the flask became 0.02 MPa. This sealed state was maintained at 60 ° C., and the sulfonation reaction was performed for 4 hours. Thereafter, the SO3 gas in the flask was replaced with nitrogen gas and removed.
- SO3 in the tank was 1.1 g instead of 2.2 g.
- PS resin sulfonate I was synthesized by sulfonating PS resin in the same manner as D-1. The content rate of sulfur in the obtained resin powder was 0.6 mass%.
- Potassium perfluorobutanesulfonate Commercially available potassium perfluorobutanesulfonate (trade name F-114; flame retardant for polycarbonate manufactured by DIC) was used as a flame retardant.
- ⁇ E component silicon-based flame retardant> ⁇ E-1> Dimethyl-diphenyl-methyl hydrogen silicone oil (trade name KR-2710; manufactured by Shin-Etsu Chemical Co., Ltd.) ⁇ E-2> Methylphenyl silicone resin (trade name X-40-9805; manufactured by Shin-Etsu Chemical Co., Ltd.)
- the pellets were dried at 120 ° C. for 8 hours using a hot air circulation dryer. Then, using an injection molding machine, injection molding is performed at a cylinder temperature of 280 ° C. and a mold temperature of 65 ° C., and a flame retardant test piece, a pencil hardness measurement test piece, and a heat resistance (deflection temperature under load) measurement. Test pieces, Izod impact strength test pieces, flexural modulus test pieces, solvent resistance test pieces (plates), and LCD TV bezels for checking moldability (front frame part, average (Thickness: 2.0 mm) was produced.
- ⁇ Flame retardance> A vertical combustion test of UL standard 94 (UL94V) was conducted on an aromatic polycarbonate resin composition having a thickness of 2.0 mm to evaluate flame retardancy.
- the flame retardancy is considered to be V-0>V-1> V-2 in order from the superior one, and it is necessary to be V-1 or higher.
- ⁇ Pencil hardness> According to JIS K5400, the surface hardness of the aromatic polycarbonate resin composition was measured. The pencil hardness needs to be F or more.
- Izod impact strength In accordance with JIS K7110, Izod impact strength with a notch was measured. The Izod impact strength needs to be 5 or more.
- Molding is performed using a bezel (wall thickness: 2.0 mm) mold for LCD TV, confirmation of appearance (sink, weld line state), strength of welded portion, strength of bossed portion by repeated screw tightening 10 times was evaluated to confirm whether it was at a practical level.
- Table 1 is a table summarizing the composition of the resin material in Examples 1 to 5, the type and amount of additives, and the characteristics of the obtained aromatic polycarbonate resin composition.
- the amount of the resin component is represented by mass% in the resin material
- the addition amount of the additive is represented by mass ratio (%) to the resin material.
- the flame retardant properties of the aromatic polycarbonate resin compositions obtained in Examples 1 to 5 are all V-1 or higher, and the ratio of the aromatic polycarbonate resin in the resin material is 85. It can be seen that if it is at least mass%, the flame retardant requirement is satisfied. Specifically, in Examples 1 and 2 in which the proportion of the aromatic polycarbonate resin is 95% by mass, the flame retardancy is V-0, and in Examples 3 to 5 in which the proportion is 85 to 92.5% by mass. Since the flame retardancy is V-1, it can be seen that the ratio of the aromatic polycarbonate resin in the resin material is preferably 93 to 95% by mass in order to realize V-0 having higher flame retardancy. .
- any aromatic polycarbonate resin composition has a pencil hardness of F or higher, a hard coat layer is unnecessary, which is advantageous in reducing costs and improving the recycling rate.
- Other properties such as flow properties, heat distortion temperature, Izod impact strength, resin physical properties represented by flexural modulus, injection moldability, solvent resistance of molded products, stability over time under high temperature and high humidity, recyclability, etc. was also good.
- the weight average molecular weights (or arithmetic averages thereof) of the aromatic polycarbonate resins in Examples 1 to 5 are approximately 43000, 43000, 55000, 37000, and 42000, respectively. It can be seen that the arithmetic average) is suitable if it is in the range of at least 37000-55000.
- Comparative Examples 1 to 6 an aromatic polycarbonate resin composition was synthesized by changing the composition of the resin material to be larger than that of Examples 1 to 5, the characteristics were examined, and the conditions to be satisfied by the resin material were examined.
- Table 2 below is a table summarizing the compositions of the resin materials, types and ratios of additives, and characteristics of the obtained aromatic polycarbonate resin compositions in Comparative Examples 1 to 6. Each item in the table is the same as in Examples 1-5. However, VNG indicated as VNG in the evaluation of flame retardancy was not able to achieve the flame retardancy of V-2. The unit of Izod impact strength was omitted (the same applies to Table 3).
- the weight average molecular weight of the aromatic polycarbonate resin is below the appropriate range of 37000 to 55000.
- the flame retardancy of the resin composition is the same even though the other conditions are the same as in Example 1.
- impact resistance decreased.
- Example 6 The aromatic polycarbonate resin composition according to Comparative Example 6 contains 5% by mass of ABS resin (B-4) containing a rubber component as a styrene resin.
- Example 1 is the same as Example 1 except that the type of component B is different. In this case, the flame retardancy was VNG, which was significantly lower than that of Example 1. This is presumably because the C ⁇ C double bond contained in the rubber component is rich in reactivity and thus easily burns.
- the weight average molecular weight of the aromatic polycarbonate resin should not be 36000 or less or 61500 or more.
- the ratio of the styrene resin in the resin material should not be 2.5% by mass or less, or 20% by mass or more.
- Comparative Examples 7 to 9 and Examples 1 to 3 an aromatic polycarbonate resin composition was synthesized by changing the additive amount and the like more than those in Examples 1 to 5, and the characteristics were investigated. We examined the conditions to be met.
- Table 3 below is a table summarizing the compositions of the resin materials in Comparative Examples 7 to 9 and Examples 1 to 3, the types and ratios of additives, and the characteristics of the obtained aromatic polycarbonate resin compositions. Each item in the table is the same as in Examples 1-5.
- Example 1 In the aromatic polycarbonate resin composition according to Example 1, the addition amount of the polyfluoroolefin resin (component C) is as small as 0.1%. In this case, although the other conditions were the same as in Example 3, drip was generated during the combustion of the resin composition, the flame retardancy decreased to V-2, and the necessary conditions were not satisfied. .
- Example 2 The aromatic polycarbonate resin composition according to Example 2 is the same as Example 4 except that the addition amount of the organic sulfonate flame retardant (component D) is increased to 2.0%.
- the flame retardancy of the resin composition was VNG, and the flame retardance deteriorated due to an increase in the addition amount of the organic sulfonate flame retardant (D component), which did not satisfy the necessary conditions.
- Example 3 In the aromatic polycarbonate resin composition according to Example 3, 1.0% of an organic sulfonate flame retardant having a sulfur content of 15% by mass or more was added as the organic sulfonate flame retardant.
- the other conditions are the same as in the third embodiment.
- the flame retardancy of the resin composition was V-1, and the same flame retardancy as in Example 3 was obtained.
- the storage stability under high temperature and high humidity decreased. This is probably because moisture in the air is absorbed by the salt of the sulfo group contained in a large amount in the flame retardant, and the polycarbonate resin is hydrolyzed by this moisture.
- the aromatic polycarbonate resin composition according to Comparative Example 9 is a commercially available flame retardant ABS / PC resin composition containing a phosphate ester flame retardant.
- the flame retardancy is excellent at a thickness of 1.6 mm and V-0.
- the pencil hardness is HB, and the hardness of the resin surface is insufficient.
- the storage stability and recyclability under high temperature and high humidity were inferior.
- the aromatic polycarbonate resin compositions of Examples 1 to 5 have surface hardness, heat resistance, impact resistance, storage stability, compared to the flame retardant ABS / PC resin composition containing a phosphate ester flame retardant. It is a resin composition excellent in recyclability.
- polyfluoroolefin resin C component
- organic sulfonate flame retardant D component
- silicon-based flame retardant E component
- the addition amount of the polyfluoroolefin resin should be at least in the range of 0.002 to 0.005 (0.2 to 0.5%) by mass ratio with respect to the resin material. Is appropriate.
- the addition amount of the organic sulfonate flame retardant is appropriate if it is at least in the range of 0.0005 to 0.010 (0.05 to 1.0%) by mass ratio to the resin material. .
- a silicon-based flame retardant is suitable if it is at least in the range of 0.001 to 0.020 (0.1 to 2.0%) by mass ratio to the resin material.
- the organic sulfonate flame retardant is added excessively or if it uses too much sulfur, the flame retardancy will be lowered, or the resin composition will be stable at high temperatures and high humidity. May deteriorate.
- the flame-retardant PC resin composition of the present invention has excellent resin surface height and flame retardancy, heat resistance, rigidity, storage stability, and recyclability, and various electronic / electric equipment, OA equipment, vehicle parts, machinery It is useful for various applications such as parts, other agricultural materials, transport containers, playground equipment, and sundries.
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Abstract
Description
前記主たる樹脂材料の85~95質量%を占める、重量平均分子量がポリスチレン換算分子量で37000~55000である芳香族ポリカーボネート樹脂と、
前記主たる樹脂材料の15~5質量%を占める、ゴム成分を含有しないポリスチレン系樹脂と
を有し、添加剤として、
ポリフルオロオレフィン樹脂と、
有機スルホン酸塩系難燃剤と、
ケイ素系難燃剤と
を含有する、芳香族ポリカーボネート樹脂組成物に係わり、また、前記芳香族ポリカーボネート樹脂組成物が、所定の形状に成形されてなる、成形品に係わるものである。
重量平均分子量がポリスチレン換算分子量で37000~55000である芳香族ポリカーボネート樹脂は、前記芳香族ポリカーボネート樹脂組成物の機械的強度、難燃性、耐溶剤性、流れ性、および成形加工性を適度に保つのに適したものである。
重量平均分子量の相加平均
=Σ(各芳香族ポリカーボネート樹脂成分の重量平均分子量×含有率)
で与えられる重量平均分子量の相加平均が、37000~55000の範囲となることが必要である。なお、上式の和は、すべての芳香族ポリカーボネート樹脂成分についての総和をとるものとする。
ポリスチレン系樹脂は、前記芳香族ポリカーボネート樹脂組成物の表面硬度、耐油性および耐溶剤性、並びに流れ性を向上させるものである。本発明の特徴の1つとして、ポリスチレン系樹脂はゴム成分を含有しないので、芳香族ポリカーボネート樹脂の機械的強度および難燃性を損なうことが少なく、高い表面硬度が得られる。前記樹脂材料におけるポリスチレン系樹脂の割合は5~15質量%であり、より好ましくは5~7質量%である。ポリスチレン系樹脂の割合が5質量%未満の場合には、前記芳香族ポリカーボネート樹脂組成物の表面部の硬度が低下する。一方、15質量%より多い場合には、前記芳香族ポリカーボネート樹脂組成物の機械的な強度や難燃性が低下する。
ポリフルオロオレフィン樹脂は、前記芳香族ポリカーボネート樹脂組成物において、燃焼時のドリップ現象を抑制する働きをする。前記芳香族ポリカーボネート樹脂組成物中におけるポリフルオロオレフィン樹脂の添加量は、前記樹脂材料に対する質量比で0.002~0.005(0.2~0.5%)であるのが好ましい。ポリフルオロオレフィン樹脂の添加量が前記樹脂材料に対する質量比で0.002(0.2%)より少なくなると、ドリップ現象を抑制することが困難になる。一方、添加量が0.005(0.5%)より多くなると、ドリップ現象を抑制する効果が飽和し、効率が低下することによるコスト高になったり、樹脂の機械的強度や流れ性が低下する負の効果が現れやすくなったりする。
有機スルホン酸塩系難燃剤は、前記芳香族ポリカーボネート樹脂組成物に難燃性を付与するために用いられる。前記芳香族ポリカーボネート樹脂組成物中における有機スルホン酸塩系難燃剤の添加量は、前記樹脂材料に対する質量比で0.0005~0.010(0.05~1.0%)であるのが好ましい。有機スルホン酸塩系難燃剤の添加量が、前記樹脂材料に対する質量比で0.0005(0.05%)より少なくなると、前記芳香族ポリカーボネート樹脂組成物に難燃性を付与する効果が十分ではない。一方、添加量が0.010(1.0%)より多くなると、効率の低下によって経済性が悪くなり、難燃性を付与する効果も飽和して、効率が低下する。
上記有機スルホン酸塩系難燃剤としては、種々のものが挙げられるが、少なくとも1つの炭素原子を有する有機スルホン酸塩である。有機スルホン酸塩は、ナトリウム塩、カリウム塩、リチウム塩およびセシウム塩などのアルカリ金属塩や、マグネシウム塩、カルシウム塩、ストロンチウム塩およびバリウム塩などのアルカリ土類金属塩であってもよく、鉄Fe、スズSn、および亜鉛Znなどの金属元素の塩でもよく、また、アンモニア塩や有機アルキルアミン塩であってもよい。
ケイ素系難燃剤は、前記芳香族ポリカーボネート樹脂組成物に難燃性を付与するために用いられる。前記芳香族ポリカーボネート樹脂組成物中におけるケイ素系難燃剤の添加量は、前記樹脂材料に対する質量比で0.001~0.02(0.1~2%)であるのが好ましい。ケイ素系難燃剤の添加量が、前記樹脂材料に対する質量比で0.001(0.1%)より少なくなると、前記芳香族ポリカーボネート樹脂組成物に難燃性を付与する効果が十分ではない。一方、添加量が0.02(2%)より多くなると、効率の低下によって経済性が悪くなり、難燃性を付与する効果も飽和して、効率が低下する。
上述した難燃剤以外に、他の難燃剤を併用してもよい。他の難燃剤としては、例えば、有機リン酸エステル系難燃剤、ハロゲン化リン酸エステル系難燃剤、無機リン系難燃剤、ハロゲン化ビスフェノール系難燃剤、その他のハロゲン化合物系難燃剤、アンチモン系難燃剤、窒素系難燃剤、ホウ酸系難燃剤、金属塩系難燃剤、無機系難燃剤、およびケイ素系難燃剤などが挙げられ、これらのうちの何れか1種を単独で、若しくは複数種を混合して用いることができる。
実施例1~5では、下記に示すように、まず、所定の材料を用いて前記芳香族ポリカーボネート樹脂組成物を作製した。次に、その特性を調べ、評価した。
<A成分:芳香族ポリカーボネート(PC)樹脂>
<A-1>平均分子量が43000の芳香族PC樹脂(商品名 パンライトL-1225L;帝人化成社製)
<A-2>平均分子量が61500の芳香族PC樹脂(商品名 パンライトK-1300Y;帝人化成社製)
<A-3>使用済みの容器(水ボトル)から回収した、平均分子量が55000の芳香族PC樹脂
<A-4>廃棄されたコンパクトディスク(CD)から、加温した水酸化ナトリウム水溶液を用いてその塗膜を溶解除去して回収した、平均分子量が30000の芳香族PC樹脂
<B-1>AS樹脂(商品名 ライタック-A 120PF;日本エイアンドエル社製)
<B-2>廃棄された業務用ビデオカセット内のリールから回収されたPS樹脂
<B-3>使用済みの発泡スチロールから回収されたPS樹脂
<B-4>比較例6ではゴム成分を含有するPS系樹脂として、ABS樹脂(商品名 DP-611;テクノポリマー社製)を用いた。
<C-1>ポリテトラフルオロエチレン(PTFE)樹脂(商品名 Fluon PTFE ファインパウダーCD076;旭硝子社製)
<D-1>AS樹脂スルホン酸塩(PASS-K、硫黄の含有率=1.2質量%)
AS樹脂スルホン酸塩を下記のようにして合成した。
上記AS樹脂の代わりに、使用済み発泡スチロールから回収されたPS樹脂(重量平均分子量=198000)を用い、予めタンクに入れておいたSO3が2.2gではなく、1.1gであったこと除けばD-1と同様にして、PS樹脂をスルホン化して、PS樹脂スルホン酸塩Iを合成した。得られた樹脂粉末中の硫黄の含有率は0.6質量%であった。
市販のパーフルオロブタンスルホン酸カリウム(商品名 F-114;DIC社製ポリカーボネート用難燃剤)を難燃剤として用いた。
後述の例3では、硫黄含有率の大きい難燃剤として、市販のポリスチレンスルホン酸ソーダ(重量平均分子量=70000、硫黄の含有率=15.1質量%)を用いた。
<E-1>ジメチル-ジフェニル-メチル水素系シリコーンオイル(商品名 KR-2710;信越化学工業社製)
<E-2>メチルフェニル系シリコーンレジン(商品名 X-40-9805;信越化学工業社製)
まず、後述する表1に記載した配合量で上記の樹脂材料および添加剤を配合し、タンブラーを用いて混合した後、二軸同方向回転混連押出機(商品名 ZE0A;ベルストルフ社製)を用いて溶融混練し、芳香族ポリカーボネート樹脂組成物のペレットを得た。押出条件は、吐出量15kg/h、スクリュー回転数150rpmであり、また、押出温度は、第1供給口からダイス部分までを265℃とした。
上記のようにして得られた芳香族ポリカーボネート樹脂組成物の試験片を用いて、その難燃性、鉛筆硬度、流れ性、熱変形温度、アイゾット衝撃強度、曲げ弾性率で代表される樹脂物性と、射出成形性や成形品の耐溶剤性、高温高湿下での経時安定性、リサイクル性などの特性を調べ、評価した。
UL規格94(UL94V)の垂直燃焼試験を、厚さ2.0mmの芳香族ポリカーボネート樹脂組成物に対して行い、難燃性を評価した。難燃性は、優れている方から順にV-0>V-1>V-2であると考えられ、V-1以上であることが必要である。
JIS K5400に従い、芳香族ポリカーボネート樹脂組成物の表面硬度の測定を行った。鉛筆硬度はF以上であることが必要である。
JIS K7210に従い、樹脂温度280℃、荷重2.16Kgの条件で、溶融時の芳香族ポリカーボネート樹脂組成物の流れ性測定を行った。流れ性は7~8以上であることが必要である。
ASTM D648(A法)に準じて、測定条件4.6kgf/cm2にて荷重たわみ温度の測定を行った。
JIS K7110に従い、ノッチ付きのアイゾット衝撃強度の測定を実施した。アイゾット衝撃強度は5以上であることが必要である。
ASTM A790に従い、曲げ弾性率を測定した。
液晶TV用のベゼル(肉厚:2.0mm)の金型を用いて成形を行い、外観(ヒケ、ウエルドラインの状態)の確認、ウエルド部分の強度、10回繰り返しビス締めによるボス部の強度について評価を行い、実用レベルであるかどうかの確認を行った。
試験用のプレートを作製し、耐油脂性(ヒマシ油:40℃×95%×24hr)、耐アルコール性(エタノール:常温、65℃×95%×24hr)に関する耐溶剤性の(外観)確認を行った。
85℃×80Rh%の恒温恒湿槽に樹脂ペレットを400時間保存し、保管前後のポリカーボネート樹脂部の分子量変化をGPC(ポリスチレン換算)により測定を行った。400時間保存後に保管前の分子量を90%以上保持できているかどうかで長期保存安定性の判断を行った。
各難燃性PC系樹脂に関し、3回の溶融混練を繰り替えした後のアイゾット衝撃強度がイニシャル値の90%を維持できているものをOKと判断した。
比較例1による芳香族ポリカーボネート樹脂組成物では、芳香族ポリカーボネート樹脂(A成分)が重量平均分子量Mwが大きいA-2(Mw=61500)である。このため、芳香族ポリカーボネート樹脂の重量平均分子量が適正な範囲37000~55000を越えている。その結果、これ以外の条件は実施例1と同じであるにもかかわらず、樹脂組成物の流れ性が不足し、射出成形性が悪化した。
比較例2による芳香族ポリカーボネート樹脂組成物では、芳香族ポリカーボネート樹脂(A成分)が、A-1(Mw=43000)45質量%と、A-4(Mw=30000)50質量%とからなるため、その相加平均が小さい(Mw=約36000)。このため、芳香族ポリカーボネート樹脂の重量平均分子量が適正な範囲37000~55000を下回っており、その結果、これ以外の条件は実施例1と同じであるにもかかわらず、樹脂組成物の難燃性および耐衝撃性が低下した。また、一部が溶剤に溶けるため、耐溶剤性が低下した。
比較例3による芳香族ポリカーボネート樹脂組成物では、ゴム成分を含有しないスチレン系樹脂(B成分)が添加されていない。この場合、樹脂組成物の表面の鉛筆硬度がHB以下となり、硬度不足になった。また、耐溶剤性も若干不良となった。
比較例4による芳香族ポリカーボネート樹脂組成物では、ゴム成分を含有しないスチレン系樹脂(B成分)の割合が2.5質量%で、十分ではない。この場合、B成分が含まれない比較例3に比べると耐溶剤性は向上するものの、表面の鉛筆硬度はHB以下のままで、依然として硬度不足であった。難燃性は、V-0からV-1へ少し低下するが、必要条件は維持されていた。
比較例5による芳香族ポリカーボネート樹脂組成物では、ゴム成分を含有しないスチレン系樹脂(B成分)の割合が20質量%である。この場合、表面の鉛筆硬度はFとなり、必要条件を満たしたが、難燃性がVNGへ低下し、必要条件を満たさなかった。
比較例6による芳香族ポリカーボネート樹脂組成物では、スチレン系樹脂としてゴム成分を含有するABS樹脂(B-4)が5質量%含まれている。B成分の種類が異なること以外は、実施例1と同じである。この場合、難燃性がVNGであり、実施例1に比べ著しく低下した。これは、ゴム成分中に含まれるC=C二重結合が反応性に富むため、燃えやすくなるためであると考えられる。
例1による芳香族ポリカーボネート樹脂組成物では、ポリフルオロオレフィン樹脂(C成分)の添加量が0.1%と少ない。この場合、これ以外の条件は実施例3と同じであるにもかかわらず、樹脂組成物の燃焼時にドリップが発生するところとなり、難燃性がV-2に低下し、必要条件を満たさなかった。
比較例7による芳香族ポリカーボネート樹脂組成物では、有機スルホン酸塩系難燃剤(D成分)が添加されていない。この場合、これ以外の条件は実施例1と同じであるにもかかわらず、樹脂組成物の難燃性がVNGに低下し、必要条件を満たさなかった。
例2による芳香族ポリカーボネート樹脂組成物では、有機スルホン酸塩系難燃剤(D成分)の添加量が2.0%に増加していること以外は、実施例4と同じである。この場合、樹脂組成物の難燃性はVNGとなり、有機スルホン酸塩系難燃剤(D成分)の添加量の増加によって、かえって難燃性が悪化し、必要条件を満たさなかった。
例3による芳香族ポリカーボネート樹脂組成物では、有機スルホン酸塩系難燃剤として、硫黄含有率が15質量%以上の有機スルホン酸塩系難燃剤を1.0%添加した。これ以外の条件は、実施例3と同じである。この場合、樹脂組成物の難燃性はV-1となり、実施例3と同じ難燃性が得られた。しかし、高温、高湿度下での保存安定性が低下した。これは、難燃剤中に多量に含まれるスルホ基の塩によって空気中の水分が吸収され、この水分によってポリカーボネート樹脂が加水分解されるためであると考えられる。
比較例8による芳香族ポリカーボネート樹脂組成物では、ケイ素系難燃剤(E成分)が添加されていない。これ以外の条件は、実施例2と同じである。この場合、樹脂組成物の難燃性はVNGとなり、必要条件を満たさなかった。
比較例9による芳香族ポリカーボネート樹脂組成物は、市販の、リン酸エステル系難燃剤を含有する難燃性ABS/PC樹脂組成物である。この場合、難燃性は、厚さ1.6mmでV-0であり、優れている。しかし、鉛筆硬度がHBで、樹脂表面の硬度が不十分である。また、高温、高湿度下での保存安定性や、リサイクル性が劣っていた。実施例1~5の芳香族ポリカーボネート樹脂組成物は、リン酸エステル系難燃剤を含有する難燃性ABS/PC樹脂組成物と比べて、表面硬度や耐熱性、耐衝撃性、保存安定性、リサイクル性に優れた樹脂組成物である。
Claims (10)
- 主たる樹脂材料として、
前記主たる樹脂材料の85~95質量%を占める、重量平均分子量がポリスチレン換算分子量で37000~55000である芳香族ポリカーボネート樹脂と、
前記主たる樹脂材料の15~5質量%を占める、ゴム成分を含有しないポリスチレン系樹脂と
を有し、添加剤として、
ポリフルオロオレフィン樹脂と、
有機スルホン酸塩系難燃剤と、
ケイ素系難燃剤と
を含有する、芳香族ポリカーボネート樹脂組成物。 - 前記芳香族ポリカーボネート樹脂および前記ポリスチレン系樹脂が、それぞれ、前記主たる樹脂材料の93~95質量%および7~5質量%を占める、請求項1に記載した芳香族ポリカーボネート樹脂組成物。
- 前記ポリフルオロオレフィン樹脂の添加量が、前記主たる樹脂材料に対する質量比で0.002~0.005である、請求項1に記載した芳香族ポリカーボネート樹脂組成物。
- 前記有機スルホン酸塩系難燃剤の添加量が、前記主たる樹脂材料に対する質量比で0.0005~0.010である、請求項1に記載した芳香族ポリカーボネート樹脂組成物。
- 前記ケイ素系難燃剤の添加量が、前記主たる樹脂材料に対する質量比で0.001~0.020である、請求項1に記載した芳香族ポリカーボネート樹脂組成物。
- 前記ポリスチレン系樹脂が、1種類以上のポリスチレン樹脂及び/又は1種類以上のアクリロニトリル-スチレン共重合体樹脂を含有する、請求項1に記載した芳香族ポリカーボネート樹脂組成物。
- 前記有機スルホン酸塩系難燃剤が、芳香族環を有するポリマーにスルホ基の塩が導入された構造の化合物を含有する、請求項1に記載した芳香族ポリカーボネート樹脂組成物。
- 前記有機スルホン酸塩系難燃剤に、硫黄分にして0.01~15質量%に相当する個数のスルホ基の塩が導入されている、請求項1に記載した芳香族ポリカーボネート樹脂組成物。
- 前記ケイ素系難燃剤がポリオルガノシロキサン樹脂を含有する、請求項1に記載した芳香族ポリカーボネート樹脂組成物。
- 請求項1~9のいずれか1項に記載した芳香族ポリカーボネート樹脂組成物が、所定の形状に成形されてなる、成形品。
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PCT/JP2010/001225 WO2010100865A1 (ja) | 2009-03-03 | 2010-02-24 | 芳香族ポリカーボネート樹脂組成物及びその成形品 |
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US (1) | US20110306712A1 (ja) |
EP (1) | EP2404968A4 (ja) |
JP (1) | JP2010202746A (ja) |
KR (1) | KR20110127646A (ja) |
CN (1) | CN102333821A (ja) |
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US9133323B2 (en) | 2010-12-28 | 2015-09-15 | Cheil Industries Inc. | Flame retardant thermoplastic resin composition |
CN102532846A (zh) * | 2010-12-31 | 2012-07-04 | 第一毛织株式会社 | 阻燃热塑性树脂组合物 |
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JPWO2014034012A1 (ja) * | 2012-08-31 | 2016-08-08 | ソニー株式会社 | 樹脂組成物及び樹脂成型体 |
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WO2018066210A1 (ja) * | 2016-10-06 | 2018-04-12 | ソニー株式会社 | 難燃性樹脂組成物 |
JPWO2018066210A1 (ja) * | 2016-10-06 | 2019-07-25 | ソニー株式会社 | 難燃性樹脂組成物 |
JP2022093366A (ja) * | 2016-10-06 | 2022-06-23 | ソニーグループ株式会社 | 難燃性樹脂組成物 |
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JP7501563B2 (ja) | 2016-10-06 | 2024-06-18 | ソニーグループ株式会社 | 難燃性樹脂組成物 |
CN113913004A (zh) * | 2020-07-10 | 2022-01-11 | 汉达精密电子(昆山)有限公司 | 一种无卤阻燃pc导电材料及其制品 |
CN115093596A (zh) * | 2022-06-28 | 2022-09-23 | 东莞鸿绩塑胶模具有限公司 | 一种高耐磨抗压手机外壳及其加工工艺 |
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CN115340741A (zh) * | 2022-08-12 | 2022-11-15 | 青岛科技大学 | 一种热塑性弹性体阻燃材料、制备方法及应用 |
Also Published As
Publication number | Publication date |
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JP2010202746A (ja) | 2010-09-16 |
CN102333821A (zh) | 2012-01-25 |
TW201035237A (en) | 2010-10-01 |
EP2404968A4 (en) | 2013-11-27 |
EP2404968A1 (en) | 2012-01-11 |
KR20110127646A (ko) | 2011-11-25 |
US20110306712A1 (en) | 2011-12-15 |
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