WO2006043641A1 - 熱可塑性樹脂組成物、その成形体及びその製造方法 - Google Patents
熱可塑性樹脂組成物、その成形体及びその製造方法 Download PDFInfo
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- WO2006043641A1 WO2006043641A1 PCT/JP2005/019324 JP2005019324W WO2006043641A1 WO 2006043641 A1 WO2006043641 A1 WO 2006043641A1 JP 2005019324 W JP2005019324 W JP 2005019324W WO 2006043641 A1 WO2006043641 A1 WO 2006043641A1
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- Prior art keywords
- thermoplastic resin
- resin composition
- filler
- molded body
- composition according
- Prior art date
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- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 64
- 239000011342 resin composition Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 19
- 238000001746 injection moulding Methods 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 239000000155 melt Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 46
- 239000002245 particle Substances 0.000 claims description 34
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 23
- 239000000377 silicon dioxide Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 22
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 238000005452 bending Methods 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 24
- 239000011347 resin Substances 0.000 description 24
- -1 alkyl methacrylate Chemical compound 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 239000002253 acid Substances 0.000 description 11
- 239000011256 inorganic filler Substances 0.000 description 11
- 229910003475 inorganic filler Inorganic materials 0.000 description 11
- 238000009432 framing Methods 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 8
- 239000003063 flame retardant Substances 0.000 description 8
- 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 description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 7
- KKEYFWRCBNTPAC-UHFFFAOYSA-N benzene-dicarboxylic acid Natural products OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 7
- 229920002647 polyamide Polymers 0.000 description 7
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 5
- 239000004734 Polyphenylene sulfide Substances 0.000 description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 229920000069 polyphenylene sulfide Polymers 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- SJJCQDRGABAVBB-UHFFFAOYSA-N 1-hydroxy-2-naphthoic acid Chemical compound C1=CC=CC2=C(O)C(C(=O)O)=CC=C21 SJJCQDRGABAVBB-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 229920001895 acrylonitrile-acrylic-styrene Polymers 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 2
- 229920005669 high impact polystyrene Polymers 0.000 description 2
- 239000004797 high-impact polystyrene Substances 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000113 methacrylic resin Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000013102 re-test Methods 0.000 description 2
- 238000000790 scattering method Methods 0.000 description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004605 External Lubricant Substances 0.000 description 1
- 239000004610 Internal Lubricant Substances 0.000 description 1
- 235000009781 Myrtillocactus geometrizans Nutrition 0.000 description 1
- 240000009125 Myrtillocactus geometrizans Species 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000005192 alkyl ethylene group Chemical group 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
-
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the present invention relates to a thermoplastic resin composition excellent in heat dissipation and a molded article thereof.
- Patent Document 1 Japanese Patent Application Laid-Open No. 64-24859
- the present invention is an injection-moldable thermoplastic resin composition that is excellent in moldability, rigidity, impact strength, heat resistance, and heat dissipation, and is obtained by injection molding. It is an object of the present invention to provide a molded product and a method for producing the molded product.
- the present invention has the following gist.
- thermoplastic resin composition containing a thermoplastic resin and a filler, and having a melt mass flow rate of 1.5 to 200 g / 10 minutes, and the molded article of the composition has a thermal conductivity of 0.
- thermoplastic resin composition having a viscosity of 4 to 1.5 W / mK and a flexural modulus of 1000 to 8000 MPa.
- thermoplastic resin composition according to (1) or (2) above which contains 10 to 50% by volume of filler.
- thermoplastic resin composition according to any one of (1) to (3) above, wherein the filler has an average particle diameter of 1 to 50 ⁇ m.
- thermoplastic resin composition according to any one of (1) to (4) above, wherein the filler has a thermal conductivity of 1.0 to 150 WZmk.
- thermoplastic resin composition according to any one of (1) to (5) above, wherein the filler is at least one selected from spherical alumina and spherical silica.
- thermoplastic resin composition according to any one of (1) to (6) above, wherein the melt mass flow rate is from 2 to 200 gZlO.
- a method for producing a molded article comprising producing a molded article by injection molding the thermoplastic resin composition according to any one of (1) to (7) above.
- thermoplastic resin composition (9) A molded body for a heat radiating member formed by molding the thermoplastic resin composition according to any one of (1) to (7) above.
- the above (10) characterized in that it is at least one of a power adapter, a PC part, a mobile phone part, an automobile part, an optical display device, and a semiconductor material.
- the present invention it is possible to provide a composition excellent in rigidity, impact strength, heat resistance, and heat dissipation that can be easily injection-molded, and a molded body thereof.
- a composition excellent in rigidity, impact strength, heat resistance, and heat dissipation that can be easily injection-molded, and a molded body thereof.
- it can be suitably used for casing applications such as power adapters, PC parts, mobile phone parts, automobile parts, optical display devices, semiconductors, and parts that are in contact with heat-generating parts.
- a major feature of the present invention is that a high heat dissipation composition capable of injection molding can be obtained by filling a thermoplastic resin with a specific inorganic filler.
- the thermal conductivity of the molded article of the thermoplastic resin composition is required to be 0.4 to 1.5 WZmk, preferably 0.5 to 1.5 WZmk, and more preferably 0.5 to 1. It is 3WZmk. If the thermal conductivity is small, the heat dissipation of the molded product will be insufficient, and the thermal conductivity will be high just to increase the thermal conductivity immediately! If a large amount of inorganic filler is blended, the resulting thermoplastic resin composition The injection moldability tends to be inferior.
- MFR Melt mass flow rate
- the value of MFR is preferably 2 to 200 gZlO, more preferably 3 to 30 gZlO, and particularly preferably 6 to 20 gZlO.
- the measurement of MFR depends on the thermoplastic resin of the base material. HIPS resin, ABS resin, AAS resin, SAS resin, SEBS resin, MBS resin, MES resin (alkyl methacrylate) ⁇ -olefin rubber (styrene copolymer), rubber reinforced styrene thermoplastic resin such as ACS resin, ABSZPC alloy resin, metataryl styrene copolymer, methacrylic resin, aromatic butyl monomer unit, unsaturated Dicarboxylic imide derivative units, or vinylimide units copolymerizable with these maleimide copolymers, or various additives such as flame retardants, colorants, weathering agents, etc. for these resins. When at least one kind of resin selected from the following resins is used, the measurement is performed at 220 ° C. and 10 kg.
- Thermoplastic resin is polyamide-based resin, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polycyclohexane dimethyl Aromatic polyesters and P-hydroxybenzoic acid Z-bis synthesized from bisphenols such as tylene terephthalate, bisphenol A and 4,4,1 dihydroxy monodiphenyl ether and dibasic acids such as isophthalic acid and terephthalic acid Phenolic Z terephthalic acid, p hydroxybenzoic acid Z6 Hydroxy 2 naphthalenecarboxylic acid Z terephthalic acid, p hydroxybenzoic acid Z Polybutylene terephthalate and other liquid crystalline polyesters, etc.
- the MFR is preferably 2 to 200 gZlO, more preferably 3 to 30 gZlO, and particularly preferably 10 to 30 g / 10 min under the conditions measured at 265 ° C. and 10 kg. If the MFR value is less than 2 g / 10 min, the molding cacheability tends to be poor, and if the MFR exceeds 200 gZlO, the balance between moldability and impact strength tends to be poor.
- the MFR is preferably 2 to 200 gZlO, more preferably 2 to 30 gZlO, under the conditions measured at 300 ° C and 1.2 kg. Particularly preferred is 2 to 5 gZlO. If the MFR value is less than 2 gZlO, the moldability tends to be inferior, and if the MFR exceeds 200 gZlO, the balance between formability and impact strength tends to be poor.
- the rigidity of the molded body of the thermoplastic resin composition is such that the flexural modulus is 1000 to 8000 MPa, the force S is the required force, preferably 2000 to 7000 MPa, and particularly preferably 2700 to 6500 MPa. If the flexural modulus is less than lOOOMpa, there is a tendency for the molded product to have low rigidity and to have a problem in practical use.
- the filler is preferably a spherical inorganic powder, that is, a spherical inorganic filler.
- the average sphericity of the inorganic filler is preferably from 0.80 to 1.00, more preferably from 0.80 to 0.95, and even more preferably from 0.90 to 0.92.
- melt kneading for filling into the thermoplastic resin composition becomes difficult, and the strength of the thermoplastic resin composition obtained immediately tends to decrease. Further, the dispersibility of the inorganic filler is deteriorated, and the heat dissipation effect of the obtained molded product tends to be reduced.
- the average sphericity is measured with an image analyzer (manufactured by Aviotas Japan) using particle images taken with a stereo microscope (model "SMZ-10" manufactured by Nikon Corporation), a scanning electron microscope, etc. It can be measured by the following method. That is, the projected area (A) and peripheral length (PM) of the particle are measured from the particle image. If the area of a perfect circle corresponding to the peripheral length (PM) is (B), the roundness of the particle can be displayed as AZB.
- sphericity (roundness) is calculated from the new roundness of individual particles quantitatively automatically measured by a particle image analyzer (for example, product name “FPIA—100 0” manufactured by Sysmetas). It can also be obtained by conversion according to 2 ).
- the filler filling amount (hereinafter also referred to as "content") is preferably 10 to 50% by volume, more preferably 20 to 40% by volume, based on the entire thermoplastic resin composition. If the content is less than 10% by volume, the effect of improving the heat dissipation will be reduced, and if the content is immediately higher than 50% by volume, the strength of the molded article of the thermoplastic resin composition obtained tends to increase. Depending on the product, injection molding may be difficult.
- the average particle size of the filler (volume average particle size measured by laser diffraction scattering method particle size distribution manufactured by Coulter, etc.) is preferably 1 to 50 ⁇ m, more preferably 5 to 20 ⁇ m.
- the average particle size is smaller than 1 m, the effect of improving the heat dissipation is reduced, and when the average particle size is immediately larger than 50 m, the strength of the resulting molded product of the thermoplastic resin composition tends to be remarkable.
- the thermal conductivity of the filler is preferably 1.0 to 150 WZmk force S, more preferably 1.0 to 120 W Zmk, and particularly preferably 1.0 to 50 WZmk.
- inorganic fillers include acid aluminum (alumina), acid silicon (silica), silicon nitride, aluminum nitride, boron nitride, expansive graphite, metallic aluminum, mullite, and acid silicon. Examples include calcium, titer, and zirco Your. Preferred are acid aluminum (alumina) and acid silicon (silica). These may be used alone or in combination of two or more.
- Thermoplastic resins include, for example, HIPS resin, ABS resin, AAS resin, SAS resin, SEBS resin, MBS resin, MES resin (alkyl ethylene methacrylate ' ⁇ -olefin-based rubber) (Styrene copolymer) and rubber reinforced styrene thermoplastic resin such as ACS resin, meta-styrene copolymer, methacrylic resin, aromatic bule monomer unit, unsaturated dicarboxylic imide derivative unit, and these Maleimide copolymers consisting of copolymerizable vinyl monomer units such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polycyclohexanedimethylene terephthalate, bisphenol A and 4 , 4, Dihydroxy monodiphenyl ether and other dibasic acids such as isophthalic acid and terephthalic acid or their derivatives, p-hydroxybenzo
- thermoplastic resin composition can be provided with flame retardancy by containing a halogen-based flame retardant, an acid-antimony, a phosphate ester-based flame retardant, or the like.
- Good electrical conductivity can be imparted by adding carbon black, acetylene black or the like to the thermoplastic resin composition.
- a black colorant such as carbon black may be added to the thermoplastic resin composition to increase the heat radiation rate, thereby further improving heat dissipation.
- thermoplastic resin composition does not affect heat dissipation, strength, and moldability, an external lubricant, an internal lubricant, an antioxidant, a light stabilizer, an ultraviolet absorber, glass, and the like, if necessary.
- Reinforcing materials such as fibers and carbon fibers, colorants, etc. can be added, and inorganic fillers are used after surface modification with powder surface modifiers such as silane and Z or titanate coupling agents. It is also possible to do.
- the thermoplastic resin composition can be obtained by using an ordinary melt-kneading apparatus.
- the melt-kneading apparatus that can be suitably used include a single-screw extruder, a combined type co-rotating or combined type.
- screw extruders such as a counter-rotating twin screw extruder, a non- or incompletely integrated twin screw extruder, a Banbury mixer, a kneader, and a mixing roll.
- thermoplastic resin composition can be molded and used for a casing, and as the molding method, a method of molding a thermoplastic resin can be used, for example, a press method, an extrusion method, an injection molding method. Method, two-color molding, etc., but injection molding is preferred in view of mass productivity and design.
- the inorganic filler As the inorganic filler, the following spherical alumina, crushed alumina, spherical silica, and crushed silica were used.
- A—1 Spherical alumina Average particle size 0.5 m, average sphericity 0.92
- A-2 Spherical alumina Average particle size 5 ⁇ m, Average sphericity 0.78
- A-3 Spherical alumina Average particle size 5 ⁇ m, average sphericity 0.82
- A—4 Spherical alumina Average particle size 5 m, average sphericity 0.92
- A-5 Spherical alumina Average particle size 10 ⁇ m, Average sphericity 0.92
- A-6 Spherical alumina Average particle size 45 ⁇ m, Average sphericity 0.92
- A-7 Spherical alumina Average particle size 60 ⁇ m, Average sphericity 0.92
- A—8 Crushed type alumina Average particle size 10 ⁇ m, average sphericity 0.69
- S-7 Spherical silica Average particle size 60 ⁇ m, Average sphericity 0.92
- S-8 Crush type silica Average particle size 20 ⁇ m, Average sphericity 0.62
- the filler had a thermal conductivity (WZmk) of alumina 30 and silica 1.2.
- the average particle diameter is an average diameter (volume average diameter) measured using a laser diffraction scattering method particle size distribution analyzer manufactured by Coulter.
- thermoplastic resin [0028] The following thermoplastic resin was used.
- N—1 Flame retardant ABSZPC resin, manufactured by Denki Kagaku Kogyo Co., Ltd., HS—N60 (Density: 1. 20)
- N—2 Flame retardant ABS oil, manufactured by Denki Kagaku Kogyo Co., Ltd., NA2860 (density: 1.19)
- N—3 PA-type alloy manufactured by Denki Kagaku Kogyo Co., Ltd., N1000ST (Density: 1. 08)
- PA polyamide 6
- EPR acid-modified ethylene-propylene rubber
- SMI styrene-N-phenol maleimide copolymer
- N—4 PPS resin, manufactured by Dainippon Ink and Chemicals, FZ—2200—A5 (density 1.
- each inorganic filler and each thermoplastic resin were charged into a Henschel mixer so as to have the composition shown in Table 1 to Table 4, and mixed at low speed for 3 minutes.
- This mixture was melt-kneaded with a 4 Omm single screw extruder equipped with a vacuum vent and a dull image screw (IKG, MS40-32V) at the following set temperature and a screw rotation speed of 80-: LOOrpm to obtain pellets.
- test specimens for evaluation were prepared by an injection molding machine, various physical properties were evaluated, and the results are shown in Tables 1 to 4.
- Examples 32 to 38 are comparative examples, and other examples are examples of the present invention.
- Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Example 12 Thermoplastic resin N-1 (Volume 0 /.) 90 80 80 80 80 70 60 51 80 80 80 80 80 Inorganic filler Alumina A— 1 (vol%) 20
- Alumina A-4 (vol%) 10 20 30 40 49
- Alumina A-5 (vol.%) 20 Alumina A-6 (vol.%) 20 Alumina A-7 (vol.%) 20 Thermal conductivity (W / mK) 0.42 0.42 0.46 0.50 0.53 0.63 0.95 1.32 0.59 0.61 0.65 0.70 Menoleto mass flow Late ( g ZlO) 220 ° C, 10kg 12 8 1.7 3.8 10 8.2 4.5 2.4 1.5 12 13 14 Charbi impact strength (KJ / m 2 ) 11 21 2.3 7.2 9.4 4.6 3 1.5 1.7 4.8 3.9 1 Flexural modulus (MPa ) 3150 3710 3950 3920 3820 4530 5640 6570 3980 4110 4200 4210 Vicat softening point (° C) 112 112 112 112 113 114 115 116 112 113 113 113 Flame resistance UL- 94 V-0 V-0 V-0 V-0 V— 0 V— 0 V— 0 V-0 V— 0 V-0 V— 0 V-0 V— 0
- Example 13 Example 14 Example 15 Example 16 Example 17 Example 18 Example 19 Example 20
- Example 21 Example 22
- Example 23 Example 24 25 Thermoplastic resin N-1 (% by volume) 80 80 80 80 70 60 51 40 80 80 70 80 80 Inorganic filler Silica S-1 (volume%) 20
- evaluation measuring method of various physical properties is as follows.
- PA / EPR / IP 265 ° C, 10kg (not flowing at 220 ° C! / ⁇ )
- PPS 300 ° C, 1.2kg (265 ° C)
- a set of five specimens was tested for vertical combustion. Remove the blue flame from the burner at the bottom center of the test piece after 10 seconds of indirect flame, measure the framing time of the test piece (flamingZ flaming combustion), and immediately stop the flaming for 10 seconds. Measure the glowing time. Also, place surgical cotton directly under the test piece and check for ignition by melting dripping.
- V-0 Meet all the following requirements (a) to (f).
- a box-shaped molded product (one side, no open type box type) with an outside dimension of 100 mm long x 50 mm wide x 15 mm high (each side is 2 mm thick) is injection molded. Shaped. Two box-shaped moldings obtained were bonded together, and a semi-enclosed hexahedral casing with outer dimensions of 100 X 50 X 30 mm in height (2 mm thick) (a thermocouple for temperature measurement and a lead for energizing the electronic components of the heating element) A hole of about 8mm ⁇ was made in the center of the side of the 50 x 30mm surface.
- flexural modulus The flexural modulus was measured according to JIS K-7171.
- Injection moldability Injection molding machine ⁇ Toshiba Machine IS 50EPN is used to injection mold a box-shaped molded product with a single pin gate (lmm) outer size 100 X 50 X 15mm (2mm thickness) at the following set temperature. A to D rank was evaluated.
- Box-shaped molded products are notable for appearance defects such as flashing, burning, and flow marks, but can be molded
- a power adapter a PC part, a mobile phone part, an automobile part, an optical display device using a molded article obtained by injection molding the thermoplastic resin composition obtained in the examples.
- a semiconductor material was created, a product with excellent heat dissipation compared to the conventional product was obtained.
- thermoplastic resin composition and a molded product thereof include a heat radiating member of a heat generating electronic component, such as a power adapter, a component for a personal computer, a component for a mobile phone, an automobile component, an optical display device, a semiconductor, and the like. Touch the part that generates heat! / It can be suitably used for casing applications such as scraping parts.
- a heat generating electronic component such as a power adapter, a component for a personal computer, a component for a mobile phone, an automobile component, an optical display device, a semiconductor, and the like. Touch the part that generates heat! / It can be suitably used for casing applications such as scraping parts.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
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JP2008094924A (ja) * | 2006-10-11 | 2008-04-24 | Daicel Polymer Ltd | 熱伝導性樹脂組成物 |
JP2008239899A (ja) * | 2007-03-28 | 2008-10-09 | Techno Polymer Co Ltd | 放熱性樹脂組成物及びそれを含む成形品 |
JP5446344B2 (ja) | 2008-03-28 | 2014-03-19 | 住友化学株式会社 | 樹脂組成物、反射板及び発光装置 |
JP5049239B2 (ja) * | 2008-09-25 | 2012-10-17 | パナソニック株式会社 | 熱可塑性樹脂押出成形体及び熱可塑性樹脂押出成形体の雨垂れ跡の防止方法 |
JP5049240B2 (ja) * | 2008-09-25 | 2012-10-17 | パナソニック株式会社 | 熱可塑性樹脂組成物 |
JP5049241B2 (ja) * | 2008-09-25 | 2012-10-17 | パナソニック株式会社 | 熱可塑性樹脂射出成形体及び熱可塑性樹脂射出成形体の雨垂れ跡の防止方法 |
JP5388665B2 (ja) * | 2009-04-14 | 2014-01-15 | 電気化学工業株式会社 | 熱可塑性樹脂組成物及びその成形体 |
WO2011125545A1 (ja) | 2010-04-07 | 2011-10-13 | 電気化学工業株式会社 | Led照明筐体用の放熱性樹脂組成物及びそのled照明用放熱性筐体 |
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JP2002146187A (ja) * | 2000-11-08 | 2002-05-22 | Toray Ind Inc | ポリフェニレンスルフィド樹脂組成物 |
JP2003187757A (ja) * | 2001-10-11 | 2003-07-04 | Sumitomo Chem Co Ltd | 蓄電池電槽用樹脂組成物 |
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JP2002146187A (ja) * | 2000-11-08 | 2002-05-22 | Toray Ind Inc | ポリフェニレンスルフィド樹脂組成物 |
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