WO2017115757A1 - ポリブチレンテレフタレート樹脂組成物、及び金属複合部品 - Google Patents
ポリブチレンテレフタレート樹脂組成物、及び金属複合部品 Download PDFInfo
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- WO2017115757A1 WO2017115757A1 PCT/JP2016/088757 JP2016088757W WO2017115757A1 WO 2017115757 A1 WO2017115757 A1 WO 2017115757A1 JP 2016088757 W JP2016088757 W JP 2016088757W WO 2017115757 A1 WO2017115757 A1 WO 2017115757A1
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- terephthalate resin
- polybutylene terephthalate
- resin composition
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- metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/16—Solid spheres
- C08K7/18—Solid spheres inorganic
- C08K7/20—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Definitions
- Embodiments of the present invention relate to a polybutylene terephthalate resin composition. Furthermore, the embodiment of the present invention relates to a metal composite part using the polybutylene terephthalate resin composition.
- thermoplastic resin used for such a metal composite part can be melt-molded by a method such as injection molding, and has mechanical characteristics, heat resistance, electrical characteristics, weather resistance, water resistance, chemical resistance, resistance to resistance.
- the use of a polybutylene terephthalate resin composition excellent in various properties such as a solvent has been studied.
- Methods for improving the adhesion between the metal part and the resin part include mechanical / chemical surface treatment on the metal part to provide anchors such as irregularities on the metal surface, introduction of functional groups, adhesives, etc.
- a method of interposing layers is being studied.
- Japanese Patent Application Laid-Open No. 2006-027018 discloses a method in which a fine uneven layer is formed on a metal shape, immersed in a water-soluble alcohol solution, and then the metal shape and the resin composition are combined by injection molding. are listed.
- the polybutylene terephthalate resin composition has also been studied for improving the adhesion to metal.
- International Publication No. 2011/155289 pamphlet discloses a polybutylene terephthalate resin and a predetermined amount of modified polyethylene terephthalate as a polybutylene terephthalate resin composition having excellent adhesion to metal parts even at a mold temperature of 100 ° C. or less.
- a resin composition containing a resin is described.
- the pamphlet of International Publication No. 2009/081549 as a resin composition that can be molded at a mold temperature of 100 ° C.
- a polybutylene terephthalate resin composition containing a fibrous reinforcing agent and a thermoplastic elastomer, or a predetermined modification A modified polybutylene terephthalate resin composition comprising a polybutylene terephthalate resin and a fibrous reinforcing agent is described.
- Embodiments of the present invention relate to the following matters.
- the surface roughness of the molded product according to ISO 3167 (Type A test piece) molded under the conditions of a molding temperature of 260 ° C., a mold temperature of 80 ° C., and a holding pressure of 80 MPa is 0.50 ⁇ m or less as an arithmetic average roughness.
- the content of epoxy groups in the (C) epoxy group-containing olefin copolymer is 0.01 mass% or more and 0.35 mass% or less with respect to the whole polybutylene terephthalate resin composition, and the polybutylene terephthalate resin composition
- the content of the (meth) acrylic ester structure is 1.5% by mass or less with respect to the whole.
- a metal composite part comprising a resin part made of the polybutylene terephthalate resin composition according to any one of [1] to [7] and a metal part.
- the present inventors have (A) polybutylene terephthalate resin, (B) polyethylene terephthalate resin, (c-1) ⁇ -olefin-derived structural unit and (c-2) ⁇ , ⁇ -unsaturated glycidyl acid.
- the content (mass%) of the epoxy group in the coalescence and the content (mass%) of the (meth) acrylic acid ester structure with respect to the whole polybutylene terephthalate resin composition are within a specific range, metal adhesion and resistance It has been found that a polybutylene terephthalate resin composition having an excellent balance between impact properties and dielectric loss tangent can be obtained.
- the polybutylene terephthalate resin composition according to one embodiment of the present invention is (A) a polybutylene terephthalate resin, (B) a polyethylene terephthalate resin, (c-1) a structural unit derived from an ⁇ -olefin, and (c-2) a structural unit derived from a glycidyl ester of an ⁇ , ⁇ -unsaturated acid.
- the surface roughness (Ra) of the molded product is 0.50 ⁇ m or less, and the content of epoxy groups derived from the (C) epoxy group-containing olefin copolymer is 0.00 with respect to the whole polybutylene terephthalate resin composition.
- the content of the (meth) acrylic acid ester structure with respect to the whole polybutylene terephthalate resin composition is not less than 01% by mass and not more than 0.35% by mass, and is not more than 1.5% by mass.
- the “surface roughness (Ra)” is an index of the surface characteristics of a molded product formed using the polybutylene terephthalate resin composition according to the present embodiment, and specifically, polybutylene terephthalate. It is arithmetic mean roughness Ra of the molded article formed using the resin composition.
- the surface roughness Ra is (1) A test piece according to ISO 3167 (Type A test piece) was prepared, (2) The surface roughness of a predetermined part of the test piece can be measured by measuring using a surface roughness measuring machine. Examples of measurement conditions will be described in detail in Examples.
- FIG. 2 illustrates a test piece. As described in the Examples, the test piece can be produced by molding a polybutylene terephthalate resin composition at a molding temperature of 260 ° C., a mold temperature of 80 ° C., and a holding pressure of 80 MPa.
- the surface roughness (Ra) of the molded product is preferably 0.50 ⁇ m or less, more preferably 0.48 ⁇ m or less, and 0.46 ⁇ m or less. More preferably it is.
- a polybutylene terephthalate resin composition having a surface roughness (Ra) of a molded product of 0.50 ⁇ m or less is used, the air tightness of the interface between the resin part of the metal composite part and the metal part can be enhanced.
- FIG. 2 illustrates a test piece. As described in the Examples, the test piece can be produced by molding a polybutylene terephthalate resin composition at a molding temperature of 260 ° C., a mold temperature of 80 ° C., and a holding pressure of 80 MPa.
- the shrinkage ratio at the time of molding is preferably 0.20% or less, more preferably 0.19% or less, and 0.18% or less. More preferably.
- a polybutylene terephthalate resin composition having a shrinkage rate of 0.20% or less during molding it is easy to suppress interfacial peeling between the resin portion and the metal part due to cooling during molding.
- the polybutylene terephthalate resin composition is preferably Charpy impact strength measured in a way that conforms to ISO 179 / 1eA of the molded article is 7 kJ / m 2 or more, at 10 kJ / m 2 or more More preferably, it is more preferably 12 kJ / m 2 or more.
- the polybutylene terephthalate resin is composed of a dicarboxylic acid component containing at least terephthalic acid or an ester-forming derivative thereof (C 1-6 alkyl ester, acid halide, etc.) and at least the number of carbon atoms.
- 4 is a polybutylene terephthalate resin obtained by polycondensation with a glycol component containing 4 alkylene glycol (1,4-butanediol) or an ester-forming derivative thereof (acetylated product, etc.).
- the polybutylene terephthalate resin is not limited to a homopolybutylene terephthalate resin, but may be a copolymer containing 60 mol% or more (particularly 75 mol% or more and 95 mol% or less) of a butylene terephthalate unit.
- the amount of the terminal carboxyl group of the polybutylene terephthalate resin is not particularly limited as long as the object of the present invention is not impaired.
- the terminal carboxyl group amount of the polybutylene terephthalate resin is preferably 30 meq / kg or less, and more preferably 25 meq / kg or less.
- the intrinsic viscosity of the polybutylene terephthalate resin is not particularly limited as long as the object of the present invention is not impaired.
- the intrinsic viscosity (IV) of the polybutylene terephthalate resin is preferably 0.60 dL / g or more and 1.2 dL / g or less. More preferably, it is 0.65 dL / g or more and 0.9 dL / g or less. When a polybutylene terephthalate resin having an intrinsic viscosity in such a range is used, the resulting polybutylene terephthalate resin composition has particularly excellent moldability.
- the intrinsic viscosity can also be adjusted by blending polybutylene terephthalate resins having different intrinsic viscosities.
- a polybutylene terephthalate resin having an intrinsic viscosity of 0.9 dL / g is prepared by blending a polybutylene terephthalate resin having an intrinsic viscosity of 1.0 dL / g and a polybutylene terephthalate resin having an intrinsic viscosity of 0.7 dL / g. Can do.
- the intrinsic viscosity (IV) of the polybutylene terephthalate resin can be measured, for example, in o-chlorophenol at a temperature of 35 ° C.
- dicarboxylic acid components (comonomer components) other than terephthalic acid and its ester-forming derivatives
- dicarboxylic acid components for example, isophthalic acid, phthalic acid, 2,6-naphthalenedicarboxylic acid, 4,4′- C 8-14 aromatic dicarboxylic acids such as dicarboxydiphenyl ether; C 4-16 alkane dicarboxylic acids such as succinic acid, adipic acid, azelaic acid and sebacic acid; C 5-10 cycloalkane dicarboxylic acids such as cyclohexane dicarboxylic acid Acid; ester-forming derivatives of these dicarboxylic acid components (C 1-6 alkyl ester derivatives, acid halides, etc.).
- dicarboxylic acid components can be used alone or in combination of two or more.
- C 8-12 aromatic dicarboxylic acids such as isophthalic acid
- C 6-12 alkanedicarboxylic acids such as adipic acid, azelaic acid, and sebacic acid are more preferable.
- glycol components (comonomer components) other than 1,4-butanediol for example, ethylene glycol, propylene glycol, trimethylene glycol, 1,3-butylene glycol, hexamethylene glycol, neo C 2-10 alkylene glycol such as pentyl glycol and 1,3-octanediol; polyoxyalkylene glycol such as diethylene glycol, triethylene glycol and dipropylene glycol; alicyclic diol such as cyclohexanedimethanol and hydrogenated bisphenol A; Aromatic diols such as bisphenol A and 4,4′-dihydroxybiphenyl; 2 mol adducts of ethylene oxide of bisphenol A, 3 mol of propylene oxide of bisphenol A An adduct, alkylene oxide adducts of C 2-4 of bisphenol A; or ester-forming derivatives of these glycols (acet
- C 2-6 alkylene glycol such as ethylene glycol and trimethylene glycol
- polyoxyalkylene glycol such as diethylene glycol
- alicyclic diol such as cyclohexanedimethanol
- Examples of the comonomer component that can be used in addition to the dicarboxylic acid component and the glycol component include 4-hydroxybenzoic acid, 3-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, 4-carboxy-4′-hydroxybiphenyl, and the like.
- Aromatic hydroxycarboxylic acids Aliphatic hydroxycarboxylic acids such as glycolic acid and hydroxycaproic acid; C 3-12 lactones such as propiolactone, butyrolactone, valerolactone, caprolactone ( ⁇ -caprolactone, etc.); esters of these comonomer components And forming derivatives (C 1-6 alkyl ester derivatives, acid halides, acetylated compounds, etc.).
- any of the polybutylene terephthalate copolymers obtained by copolymerizing the comonomer components described above can be suitably used as the (A) polybutylene terephthalate resin. Moreover, you may use combining a homopolybutylene terephthalate polymer and a polybutylene terephthalate copolymer as (A) polybutylene terephthalate resin.
- Polyethylene terephthalate resin includes terephthalic acid or ester-forming derivatives thereof (C 1-6 alkyl esters, acid halides, etc.) and ethylene glycol or ester-forming derivatives thereof (acetylated products, etc.) Is a polyester resin obtained by polycondensation according to a known method.
- the polyethylene terephthalate resin may be modified by copolymerizing a small amount of a modifying component that gives a repeating unit other than the terephthaloyl unit and the ethylenedioxy unit within a range not impairing the object of the present invention.
- the amount of the repeating unit other than the terephthaloyl unit and the ethylenedioxy unit contained in the polyethylene terephthalate resin is preferably less than 4 mol%, more preferably 3 mol% or less, and more preferably 2 mol% or less in all repeating units of the polyethylene terephthalate resin. Is more preferable.
- the (B) polyethylene terephthalate resin may contain 4 mol% or more of the repeating units derived from the above-described modifying component in the total repeating units of the (B) polyethylene terephthalate resin.
- such a polyethylene terephthalate resin may be referred to as a “modified polyethylene terephthalate resin”.
- the modified polyethylene terephthalate resin contains dicarbonyl units derived from other dicarboxylic acids of terephthalic acid or ester-forming derivatives thereof (C 1-6 alkyl esters, acid halides, etc.) as long as the object of the present invention is not impaired. You may go out.
- the amount of other dicarbonyl units in the terephthaloyl unit contained in the modified polyethylene terephthalate resin is preferably 5 mol% or more and 50 mol% or less, more preferably 7 mol% or more and 30 mol% or less, and more preferably 10 mol. % To 25 mol% is particularly preferable.
- dicarboxylic acid or an ester-forming derivative thereof contained in the modifying component isophthalic acid, phthalic acid, 2,6-naphthalenedicarboxylic acid, 4,4'-dicarboxylate aroma C 8-14, such as diphenyl ether Dicarboxylic acids; C 4-16 alkane dicarboxylic acids such as succinic acid, adipic acid, azelaic acid, sebacic acid; C 5-10 cycloalkane dicarboxylic acids such as cyclohexane dicarboxylic acid; ester formation of these dicarboxylic acid components And derivatives (C 1-6 alkyl ester derivatives, acid halides, etc.). These dicarboxylic acids can be used alone or in combination of two or more.
- C 8-12 aromatic dicarboxylic acids such as isophthalic acid or ester-forming derivatives thereof, and C 6-12 such as adipic acid, azelaic acid, sebacic acid, etc. More preferred are alkanedicarboxylic acids or ester-forming derivatives thereof.
- the resulting polybutylene terephthalate resin composition is excellent in metal adhesion and mechanical properties
- isophthalic acid or an ester-forming derivative of isophthalic acid (isophthalic acid)
- isophthalic acid or an ester-forming derivative of isophthalic acid (isophthalic acid)
- dimethyl ester isophthalic acid diethyl ester, isophthalic acid dichloride and the like.
- the modifying component used in the production of the modified polyethylene terephthalate resin is not limited to the prescribed amount of dicarboxylic acid or its ester-forming derivative, in addition to ethylene glycol and its ester-forming derivative, as long as the object of the present invention is not impaired.
- the glycol component, hydroxycarboxylic acid component, lactone component, and the like may be included.
- the amount of repeating units derived from these modifying components such as glycol component, hydroxycarboxylic acid component, and lactone component is preferably 30 mol% or less in all repeating units in the modified polyethylene terephthalate resin, 25 The mol% or less is more preferable, and 20 mol% or less is particularly preferable.
- glycol component contained in the modifying component propylene glycol, trimethylene glycol, 1,4-butanediol, 1,3-butylene glycol, hexamethylene glycol, neopentyl glycol, and 1,3-octanediol C 2- 10 of alkylene glycol; diethylene glycol, triethylene glycol, polyoxyalkylene glycol and dipropylene glycol; cyclohexanedimethanol, alicyclic diols such as hydrogenated bisphenol a; bisphenol a, aromatic such as 4,4'-dihydroxybiphenyl diols, ethylene oxide 2 mol adduct of bisphenol a, propylene oxide 3 mol adduct of bisphenol a, alkylene oxide adducts of C 2-4 of bisphenol a; or which Ester-forming derivatives of the glycol (acetylated, etc.).
- These glycol components can be used alone or in combination of two or more.
- hydroxycarboxylic acid component contained in the modified component examples include aromatic hydroxycarboxylic acids such as 4-hydroxybenzoic acid, 3-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, 4-carboxy-4′-hydroxybiphenyl; glycolic acid, aliphatic hydroxycarboxylic acids such as hydroxy caproic acid; or ester-forming derivatives of these hydroxycarboxylic acids (alkyl ester derivatives of C 1-6, an acid halide, acetyl halide, etc.). These hydroxycarboxylic acid components can be used alone or in combination of two or more.
- lactone component contained in the modifying component examples include C 3-12 lactones such as propiolactone, butyrolactone, valerolactone, and caprolactone (eg, ⁇ -caprolactone). These lactone components can be used alone or in combination of two or more.
- the polyethylene terephthalate resin may be used alone or in combination of two or more. From the viewpoint of improving the bonding strength, a polyethylene terephthalate resin (“non-modified polyethylene terephthalate resin”) in which the repeating unit derived from the above-described modifying component is less than 4 mol% (including 0 mol%) in all repeating units may be described. More preferably).
- the polyethylene terephthalate resin as described above improves the fluidity of the polybutylene terephthalate resin composition at the time of molding in the polybutylene terephthalate resin composition according to this embodiment, and the resin composition is applied to the fine irregularities on the surface of the metal part. It is estimated that it has the effect of making it easy to enter. Further, it is presumed that the shrinkage rate is lowered by reducing the crystallization rate of the polybutylene terephthalate resin composition, and the effect of suppressing the resin solidified in the recesses from being easily separated from the recesses after cooling is exhibited. By such an effect, it is estimated that it contributes to the improvement of the adhesiveness of the polybutylene terephthalate resin composition to the metal.
- the content of (B) polyethylene terephthalate resin is 1 with respect to the total mass of (A) polybutylene terephthalate resin and (B) polyethylene terephthalate resin from the viewpoint of enhancing the effect of improving adhesion to metal. It is preferably at least 5% by mass, more preferably at least 5% by mass, and it is preferably at most 50% by mass from the viewpoint of further suppressing deterioration in mechanical properties and chemical resistance.
- the content of the polyethylene terephthalate resin is more preferably 40% by mass or less, further preferably 35% by mass or less, and more preferably 30% by mass or less with respect to the total mass of the polybutylene terephthalate resin and the polyethylene terephthalate resin. It is particularly preferred. Further, it is particularly preferably 10% by mass or more and 25% by mass or more.
- the polybutylene terephthalate resin composition of the present embodiment comprises (c-1) a structural unit derived from ⁇ -olefin, and (c-2) an ⁇ , ⁇ -unsaturated acid. (C) an epoxy group-containing olefin copolymer containing a structural unit derived from glycidyl ester.
- the epoxy group-containing olefin copolymer added to the material for communication equipment parts includes a structural unit derived from (meth) acrylic acid ester. Non-olefin copolymers are preferred.
- (meth) acrylic acid ester is also referred to as (meth) acrylate.
- glycidyl (meth) acrylate is also referred to as glycidyl (meth) acrylate.
- (meth) acrylic acid means both acrylic acid and methacrylic acid
- (meth) acrylate” means both acrylate and methacrylate.
- the ⁇ -olefin that is a structural unit derived from ⁇ -olefin is not particularly limited, and examples thereof include ethylene, propylene, butylene, and ethylene is particularly preferable.
- the ⁇ -olefin can be used alone or in combination of two or more.
- the epoxy group-containing olefin copolymer contains a structural unit derived from (c-1) ⁇ -olefin, so that the resin portion formed from the polybutylene phthalate resin composition according to this embodiment is flexible. Is easily given.
- the softening of the resin part due to the provision of flexibility contributes to the improvement of the bonding strength between the metal part and the resin part.
- the effect of an impact resistance improvement is easy to be acquired by including such an epoxy group containing olefin type copolymer.
- the glycidyl ester of ⁇ , ⁇ -unsaturated acid that is a structural unit derived from the glycidyl ester of ⁇ , ⁇ -unsaturated acid is not particularly limited, and examples thereof include glycidyl acrylate and glycidyl methacrylate. Ethacrylic acid glycidyl ester and the like, and methacrylic acid glycidyl ester is particularly preferable.
- the glycidyl ester of ⁇ , ⁇ -unsaturated acid can be used alone or in combination of two or more.
- the epoxy group-containing olefin copolymer contains a glycidyl ester of ⁇ , ⁇ -unsaturated acid, an effect of improving the bonding strength between the metal part and the resin portion is easily obtained.
- the (C) epoxy group-containing olefin copolymer is a structural unit derived from a (meth) acrylic acid ester. It is preferably not included, but may be included as long as the effect of the present invention is not impaired.
- the (meth) acrylic acid ester is not particularly limited.
- (Meth) acrylic acid ester can be used alone or in combination of two or more. From the viewpoint of lowering the dielectric loss tangent of the resulting polybutylene terephthalate resin composition, it is preferable not to contain excessive structural units derived from (meth) acrylic acid esters. In addition, since the structural unit derived from the glycidyl ester of ⁇ , ⁇ -unsaturated acid also includes a (meth) acrylic acid ester structure, the structural unit derived from the glycidyl ester of ⁇ , ⁇ -unsaturated acid is included excessively. Also in this case, the dielectric loss tangent is increased.
- the content of the (meth) acrylic acid ester structure with respect to the entire polybutylene terephthalate resin composition in the present embodiment is not only present as a structural unit derived from (meth) acrylic acid ester, but also ⁇ , ⁇ -unsaturated It refers to the amount including those present in structural units derived from glycidyl esters of acids.
- the content of the (meth) acrylic acid ester structure with respect to the entire polybutylene terephthalate resin composition is not limited to the content of the (meth) acrylic acid ester structure contained in the (C) epoxy group-containing olefin copolymer, When the (meth) acrylic acid ester structure is also included in the other components, the total value includes the content thereof.
- the content of the (meth) acrylic acid ester structure with respect to the entire polybutylene terephthalate resin composition is preferably 1.5% by mass or less, more preferably 1.0% by mass or less, further preferably 0.7% by mass or less, 0 .5% by mass or less is particularly preferable.
- Olefin copolymer containing a structural unit derived from ⁇ -olefin and a structural unit derived from a glycidyl ester of ⁇ , ⁇ -unsaturated acid, and an olefin copolymer containing a structural unit derived from (meth) acrylic acid ester The coalescence can be produced by performing copolymerization by a conventionally known method.
- the copolymer can be obtained by performing copolymerization by a generally well-known radical polymerization reaction.
- the type of copolymer is not particularly limited, and may be, for example, a random copolymer or a block copolymer.
- olefin copolymer examples include polymethyl methacrylate, polyethyl methacrylate, polymethyl acrylate, polyethyl acrylate, polybutyl acrylate, poly-2-ethylhexyl acrylate, polystyrene, polyacrylonitrile.
- An olefin-based graft copolymer in which acrylonitrile / styrene copolymer, butyl acrylate / styrene copolymer, or the like is chemically bonded in a branched or cross-linked structure may be used.
- (C) the epoxy group-containing olefin copolymer can also contain constituent units derived from other copolymerization components as long as the effects of the present invention are not impaired.
- examples of the (C) epoxy group-containing olefin copolymer include glycidyl methacrylate-modified ethylene copolymer, glycidyl ether-modified ethylene copolymer, and the like. A copolymer is preferred.
- Examples of the glycidyl methacrylate-modified ethylene copolymer include glycidyl methacrylate graft-modified ethylene polymer, ethylene-glycidyl methacrylate copolymer, and ethylene-glycidyl methacrylate-methyl acrylate copolymer.
- an ethylene-glycidyl methacrylate copolymer is preferable because a metal resin composite molded article having particularly excellent dielectric loss tangent can be obtained.
- Specific examples of the ethylene-glycidyl methacrylate copolymer include “Bond First” (manufactured by Sumitomo Chemical Co., Ltd.).
- Examples of the glycidyl ether-modified ethylene copolymer include glycidyl ether graft-modified ethylene copolymer and glycidyl ether-ethylene copolymer.
- the epoxy group-containing olefin copolymer has an epoxy group content in the (C) epoxy group-containing olefin copolymer of 0.1 to 10.0 in the (C) epoxy group-containing olefin copolymer.
- the mass is preferably 0.5%, more preferably 0.5 to 4.0% by mass, and even more preferably 1.0 to 3.0% by mass.
- the content of the epoxy group-containing olefin copolymer which depends on the epoxy group content, is preferably more than 0% by mass and not more than 9% by mass with respect to the whole polybutylene terephthalate resin composition. It is more preferably 1.5% by mass or more and 7% by mass or less, and further preferably 3% by mass or more and 6% by mass or less.
- the content of the epoxy group in the (C) epoxy group-containing olefin-based copolymer with respect to the entire polybutylene terephthalate resin composition is preferably 0.01% by mass or more and less than 0.35% by mass, and 0.02% by mass or more. It is more preferably 0.30% by mass or less, further preferably 0.03% by mass or more and 0.20% by mass or less, and particularly preferably 0.05% by mass or more and 0.25% by mass or less. .
- the epoxy group content in the system copolymer is within the above range, it is easy to maintain good impact resistance, and it is easy to obtain good bonding strength between the resin portion and the metal part.
- the polybutylene terephthalate resin composition according to the present embodiment may further contain glass fiber.
- any known glass fiber can be preferably used as the glass fiber.
- the glass fiber diameter there are no particular limitations on the glass fiber diameter, the glass fiber cross-sectional shape (cylinder, bowl shape, oval cross section, etc.), the length when cutting strands or rovings to produce chopped strands, the glass cutting method, and the like.
- the kind of glass used as the raw material for the glass fiber is not particularly limited, but E glass or corrosion resistant glass containing a zirconium element in the composition is preferably used in terms of quality.
- the glass fiber has a non-circular cross section having a longitudinal cross section.
- a glass fiber having a non-circular cross section By using a glass fiber having a non-circular cross section, the molding shrinkage rate and linear expansion coefficient of the molded product can be reduced, the dimensional stability can be improved, and the impact resistance can be further increased.
- a glass fiber having a cross-section such as a saddle shape (FIG. 1A), an oval shape (FIG. 1B), an oval shape (FIG. 1C) as shown in FIGS. be able to.
- the glass fiber can be surface-treated with an organic treatment agent such as a silane compound or an epoxy compound.
- an organic treatment agent such as a silane compound or an epoxy compound.
- the kind of silane compound or epoxy compound is not particularly limited, and any known one can be preferably used.
- the content of (D) glass fiber is 20 parts by mass or more and 100 parts by mass or less with respect to a total of 100 parts by mass of (A) polybutylene terephthalate resin and (B) polyethylene terephthalate resin. It is preferable that it is 30 to 90 parts by mass, and more preferably 40 to 80 parts by mass.
- impact resistance can be further improved.
- it is at most part by mass it is possible to further suppress a decrease in fluidity of the resin composition during molding.
- the polybutylene terephthalate resin composition comprises the above-mentioned (A) polybutylene terephthalate resin, (B) polyethylene terephthalate resin, and (C) an epoxy group-containing olefin copolymer. Components other than the polymer and (D) glass fiber may optionally be included.
- antioxidants include antioxidants, heat stabilizers, molecular weight regulators, UV absorbers, antistatic agents, dyes, pigments, lubricants, mold release agents, crystallization accelerators, crystal nucleating agents.
- examples include, but are not limited to, infrared absorbers, flame retardants, flame retardant aids, fillers other than glass fibers, and the like.
- the total content of the components (A) to (D) is preferably 70% by mass or more, and 80% by mass or more based on the total composition. It is more preferable that it is 90 mass% or more. An upper limit is not specifically limited, 100 mass% may be sufficient.
- the form of the polybutylene terephthalate resin composition according to the present embodiment is not particularly limited as long as it includes at least the components (A) to (C), and preferably includes at least the components (A) to (D).
- all the components of the polybutylene terephthalate resin composition may be in the form of pellets, flakes, or powder integrated by a method such as melt kneading or melt molding.
- the polybutylene terephthalate resin composition can be produced by various methods known as a method for producing a thermoplastic resin composition. Suitable methods include, for example, a method in which each component is kneaded into an extruded pellet using a melt kneader such as a single or twin screw extruder.
- the polybutylene terephthalate resin composition according to this embodiment preferably has a dielectric loss tangent at 2 GHz measured by a cavity resonator perturbation method of 0.01 or less.
- the dielectric loss tangent at 2 GHz measured by the cavity resonator perturbation method is a test of a predetermined shape (cross section 1.8 mm ⁇ 1.8 mm, length 80 mm) produced by injection molding at a molding temperature of 260 ° C. and a mold temperature of 80 ° C. This is a value obtained by measuring a dielectric loss tangent at 2 GHz at 23 ° C. by using a cavity resonator perturbation method.
- the method for obtaining the molded article of the polybutylene terephthalate resin composition according to the present embodiment is not particularly limited, and a known method can be employed. For example, it can be manufactured by putting pellets of a polybutylene terephthalate resin composition into an injection molding machine equipped with a predetermined mold and injection molding.
- one embodiment of the present invention relates to a metal composite part including a resin part made of a molded product of the polybutylene terephthalate resin composition according to the above-described embodiment and a metal part.
- the bonding strength between the resin part and the metal part is preferably 25 MPa or more, more preferably 30 MPa or more, and further preferably 32 MPa or more.
- the joint strength between the resin part and the metal part can be measured, for example, as follows. Examples of measurement conditions will be described in detail in Examples. (1) A metal composite part test piece having a shape defined in ISO 19095 is prepared, (2) As specified in ISO 19095, in a state where the metal part is fixed, weight is applied so that the resin part is pushed away from the metal part, (3) The load (N) at the time when the resin part is peeled from the metal part is measured, and the bonding strength (MPa) is calculated.
- the material of the metal part constituting the metal composite part according to the present embodiment is not particularly limited, and examples thereof include metals such as aluminum, copper, iron, magnesium, nickel, and titanium; alloys such as aluminum alloy, phosphor bronze, and stainless steel; And a laminated body of metal.
- the material which comprises a metal component is not limited to a metal, What is necessary is just a component which has a metal layer on the surface. Examples of components having a metal layer on the surface include components plated with metals such as nickel, chromium, and gold.
- the shape of the metal part is not particularly limited as long as it can be combined with the polybutylene terephthalate resin composition, and various shape parts such as a plate shape, a cylindrical shape, and a rod shape can be used.
- Metal parts have various components necessary for assembling final products such as electrical and electronic products, such as bosses for screwing, insertion holes for attaching ribs, gears, and other parts. You may do it.
- the shape of the part where the metal part and the resin part come into contact is not particularly limited, and an arbitrary shape such as a quadrangle, a circle, or an ellipse may be selected. Further, the shape of the surface where the metal part and the resin portion come into contact is not particularly limited, and may be a flat surface or a curved surface.
- the surface where the metal part and the resin portion come into contact is not limited to a single flat surface or curved surface, and may have a convex portion or a concave portion inside the flat surface or curved surface of the metal plate.
- the area of the part where the metal part and the resin part contact is not particularly limited.
- At least a part of the metal part that is in contact with the resin part is subjected to a roughening process (a fine unevenness process) in advance.
- the roughening method for forming fine irregularities on the surface of the metal part is not particularly limited, and can be appropriately selected from conventional metal roughening methods according to the material, shape, required characteristics, etc. of the metal. .
- Examples of the treatment for forming fine irregularities on the metal surface include chemical etching, alumite treatment on aluminum, physical treatment such as liquid honing and sandblasting, and processing by electroless plating.
- Chemical etching is a method of treating a metal surface with a chemical or the like, and various methods are known depending on the type of metal and the purpose of treatment, and are used in various industrial fields.
- the chemical etching method is not particularly limited, and any of conventional methods can be selected. Specific examples of the chemical etching method include methods described in, for example, JP-A-10-96088 and JP-A-10-56263.
- the material of the metal part is aluminum or an aluminum alloy
- a method of treating the surface of the metal part with ammonia, hydrazine, a water-soluble amine compound or the like is preferable.
- those processed by the method described in JP-A-2006-001216 can be used.
- alumite treatment which is a general surface treatment method applied to aluminum
- an aluminum is electrolyzed with an anode using an acid to form a porous of the order of several tens of nanometers to several tens of micrometers.
- TRI treatment or the like is known as a method for forming a convex portion.
- the metal parts And the polybutylene terephthalate resin composition can be made more excellent in adhesion.
- the method for producing the metal composite part according to the present embodiment is not particularly limited.
- the polybutylene terephthalate resin composition is supplied by a molding machine and is produced by insert molding. it can.
- the molding machine used for the production of the metal composite part is not particularly limited as long as it can form a composite molded body of the metal part and the polybutylene terephthalate resin composition.
- Conventional metal composite parts such as injection molding machines, extrusion molding machines, compression molding machines, etc.
- Various molding machines used for molding can be used. It is preferable to use an injection molding machine in terms of ease of installation of metal parts in a mold, simplicity of apparatus, and excellent productivity of metal composite parts.
- a molded product of the resin composition is manufactured in advance by a general molding method such as an injection molding method, and the metal part and the resin molded product are brought into contact at a desired joining position, and the contact surface
- a general molding method such as an injection molding method
- the metal part and the resin molded product are brought into contact at a desired joining position, and the contact surface
- a method of manufacturing a metal composite part by melting the vicinity of the joint surface of the resin molded product by applying heat to the resin can be used.
- the metal composite part according to this embodiment has excellent adhesion between the metal part and the resin part.
- the metal composite component of this embodiment is suitably used as a component of various electric / electronic products, for example.
- suitable electrical / electronic products using metal composite parts obtained by the method of the present invention include mobile phones, digital cameras, personal digital assistants (PDAs), portable game terminals, portable terminals such as electronic book readers, notebooks, etc.
- OA equipment such as computers such as copy-type personal computers and desktop personal computers, copiers, printers, and facsimiles.
- the metal composite part of the present embodiment is excellent in strength such as impact resistance, light weight, and design, and therefore can be particularly suitably used as a casing of a mobile terminal, a computer, an OA device, or the like.
- the metal composite component of this embodiment is excellent also in the communication characteristic based on a low dielectric constant, it can be used suitably as a communication apparatus component.
- PET Non-modified polyethylene terephthalate resin with an intrinsic viscosity of 0.68
- Modified PET 12.5 mol% isophthalic acid-modified polyethylene terephthalate resin with an intrinsic viscosity of 0.64
- PC Polycarbonate resin with a number average molecular weight of 20,000 EGMA elastomer 1: Ethylene methyl Acrylate / glycidyl methacrylate copolymer (epoxy group content 1% by mass, methyl acrylate unit content 27% by mass, glycidyl methacrylate unit content 3% by mass)
- EGMA elastomer 2 ethylene / methyl acrylate / glycidyl methacrylate cop
- Table 1 The components shown in Table 1 were dry blended in the ratios (parts by mass) shown in Tables 1 to 4, and the cylinder temperature was 260 ° C. using a twin-screw extruder (TEX-30 ⁇ manufactured by Nippon Steel) Pellets of polybutylene terephthalate resin composition were manufactured by melt-kneading under conditions of a discharge rate of 15 kg / hr and a screw rotation speed of 130 rpm.
- TEX-30 ⁇ manufactured by Nippon Steel
- Dielectric loss tangent A dielectric loss tangent at 2 GHz was measured at 23 ° C. by a cavity resonator perturbation method using a network analyzer 8757D manufactured by Agilent and a cavity resonator complex permittivity measuring device manufactured by Kanto Electronics. For the measurement, a test piece having a predetermined shape (cross section 1.8 mm ⁇ 1.8 mm, length 80 mm) produced by injection molding at a molding temperature of 260 ° C. and a mold temperature of 80 ° C. was used.
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Abstract
Description
従って、本発明の実施形態は、金属密着性と耐衝撃性及び誘電正接のバランスに優れたポリブチレンテレフタレート樹脂組成物を提供することを課題とする。
〔1〕 (A)ポリブチレンテレフタレート樹脂と、(B)ポリエチレンテレフタレート樹脂と、(c-1)α-オレフィン由来の構成単位及び(c-2)α,β-不飽和酸のグリシジルエステル由来の構成単位を含む(C)エポキシ基含有オレフィン系共重合体と、を含み、
成形温度260℃、金型温度80℃、及び保圧力80MPaの条件で成形した、ISO3167(Type A試験片)に準じた成形品の表面粗さが、算術平均粗さとして、0.50μm以下であり、
ポリブチレンテレフタレート樹脂組成物全体に対し、(C)エポキシ基含有オレフィン系共重合体中のエポキシ基の含有量が0.01質量%以上0.35質量%以下、及び、ポリブチレンテレフタレート樹脂組成物全体に対し、(メタ)アクリル酸エステル構造の含有量が1.5質量%以下である、
ポリブチレンテレフタレート樹脂組成物。
〔2〕 空洞共振器摂動法で測定した2GHzにおける誘電正接が0.01以下である、上記〔1〕に記載のポリブチレンテレフタレート樹脂組成物。
〔3〕 さらに(D)ガラス繊維を含む、上記〔1〕又は〔2〕に記載のポリブチレンテレフタレート樹脂組成物。
〔4〕 成形品のISO179/1eAに準拠する方法で測定したシャルピー衝撃強度が7kJ/m2以上である、上記〔1〕~〔3〕のいずれかに記載のポリブチレンテレフタレート樹脂組成物。
〔5〕 (C)エポキシ基含有オレフィン系共重合体が、(メタ)アクリル酸エステル由来の構成単位を含まない、上記〔1〕~〔4〕のいずれかに記載のポリブチレンテレフタレート樹脂組成物。
〔6〕 成形温度260℃、金型温度80℃、及び保圧力80MPaの条件で成形した、ISO3167(Type A試験片)に準じた成形品の収縮率が0.20以下である、上記〔1〕~〔5〕のいずれかに記載のポリブチレンテレフタレート樹脂組成物。
〔7〕 金属複合部品用である、上記〔1〕~〔6〕のいずれかに記載のポリブチレンテレフタレート樹脂組成物。
〔9〕 前記金属部品は微細凹凸処理表面を有する、上記〔8〕に記載の金属複合部品。
〔10〕 前記ポリブチレンテレフタレート樹脂組成物からなる樹脂部と、金属部品との接合強度が30MPa以上である、上記〔8〕又は〔9〕に記載の金属複合部品。
〔11〕 前記金属複合部品が、通信機器部品である、上記〔8〕~〔10〕のいずれかに記載の金属複合部品。
本発明者らは、(A)ポリブチレンテレフタレート樹脂と、(B)ポリエチレンテレフタレート樹脂と、(c-1)α-オレフィン由来の構成単位及び(c-2)α,β-不飽和酸のグリシジルエステル由来の構成単位を含む(C)エポキシ基含有オレフィン系共重合体と、を含み、その成形物の表面粗さ(Ra)と、ポリブチレンテレフタレート樹脂組成物全体に対するエポキシ基含有オレフィン系共重合体中のエポキシ基の含有量(質量%)、及びポリブチレンテレフタレート樹脂組成物全体に対する(メタ)アクリル酸エステル構造の含有量(質量%)が特定の範囲内にあると、金属密着性と耐衝撃性及び誘電正接のバランスに優れたポリブチレンテレフタレート樹脂組成物が得られることを見出した。
(A)ポリブチレンテレフタレート樹脂と、(B)ポリエチレンテレフタレート樹脂と、(c-1)α-オレフィン由来の構成単位及び(c-2)α,β-不飽和酸のグリシジルエステル由来の構成単位を含む(C)エポキシ基含有オレフィン系共重合体と、を含み、
その成形物の表面粗さ(Ra)が0.50μm以下であり、ポリブチレンテレフタレート樹脂組成物全体に対し、(C)エポキシ基含有オレフィン系共重合体に由来するエポキシ基の含有量が0.01質量%以上0.35質量%以下、及びポリブチレンテレフタレート樹脂組成物全体に対する(メタ)アクリル酸エステル構造の含有量が1.5質量%以下であることを特徴とするものである。
本明細書において、「表面粗さ(Ra)」は、本実施形態に係るポリブチレンテレフタレート樹脂組成物を用いて形成された成形品の表面特性の指標であり、具体的には、ポリブチレンテレフタレート樹脂組成物を用いて形成された成形品の算術平均粗さRaである。表面粗さRaは、
(1)ISO3167(Type A試験片)に準じた試験片を作製し、
(2)試験片の所定の部位の表面粗さを、表面粗さ測定機を用いて測定する
ことにより測定することができる。測定条件の例を実施例に詳述する。図2に試験片を例示する。試験片は、実施例に記載されるように、ポリブチレンテレフタレート樹脂組成物を、成形温度260℃、金型温度80℃、保圧力80MPaで、成形して作製することができる。
本明細書において、「収縮率」は、本実施形態に係るポリブチレンテレフタレート樹脂組成物の成形時の寸法安定性の指標であり、
(1)ISO3167(Type A試験片)に準じた試験片を作製し、
(2)試験片の所定の部位の寸法を測定し、
(3)(式) 収縮率(%)={1-(la/lb)}×100(%)
(式中、laは試験片の所定の部位の寸法(mm)、lbは当該部位の金型寸法(mm)を表す)
に従って算出することができる。測定条件の例を実施例に詳述する。
図2に試験片を例示する。試験片は、実施例に記載されるように、ポリブチレンテレフタレート樹脂組成物を、成形温度260℃、金型温度80℃、保圧力80MPaで、成形して作製することができる。
さらに、好ましい実施形態では、ポリブチレンテレフタレート樹脂組成物は、その成形品のISO179/1eAに準拠する方法で測定したシャルピー衝撃強度が7kJ/m2以上であることが好ましく、10kJ/m2以上であることがより好ましく、12kJ/m2以上であることがさらに好ましい。
(A)ポリブチレンテレフタレート樹脂は、少なくともテレフタル酸又はそのエステル形成性誘導体(C1-6のアルキルエステルや酸ハロゲン化物等)を含むジカルボン酸成分と、少なくとも炭素原子数4のアルキレングリコール(1,4-ブタンジオール)又はそのエステル形成性誘導体(アセチル化物等)を含むグリコール成分とを重縮合して得られるポリブチレンテレフタレート系樹脂である。(A)ポリブチレンテレフタレート樹脂はホモポリブチレンテレフタレート樹脂に限らず、ブチレンテレフタレート単位を60モル%以上(特に75モル%以上95モル%以下)含有する共重合体であってもよい。
(B)ポリエチレンテレフタレート樹脂は、テレフタル酸又はそのエステル形成性誘導体(C1-6アルキルエステルや酸ハロゲン化物等)、及び、エチレングリコール又はそのエステル形成性誘導体(アセチル化物等)を、公知の方法に従って重縮合して得られるポリエステル樹脂である。
本実施形態のポリブチレンテレフタレート樹脂組成物は、(c-1)α-オレフィン由来の構成単位と、(c-2)α,β-不飽和酸のグリシジルエステル由来の構成単位とを含む(C)エポキシ基含有オレフィン系共重合体を含む。特に、得られるポリブチレンテレフタレート樹脂組成物の誘電正接を低くできることから、通信機器部品用の材料に添加するエポキシ基含有オレフィン系共重合体としては、(メタ)アクリル酸エステル由来の構成単位を含まないオレフィン系共重合体が好ましい。なお、以下、(メタ)アクリル酸エステルを(メタ)アクリレートともいう。例えば、(メタ)アクリル酸グリシジルエステルをグリシジル(メタ)アクリレートともいう。また、本明細書において、「(メタ)アクリル酸」は、アクリル酸とメタクリル酸との両方を意味し、「(メタ)アクリレート」は、アクリレートとメタクリレートとの両方を意味する。
本実施形態に係るポリブチレンテレフタレート樹脂組成物は、さらに、ガラス繊維を含むことができる。
本実施形態に係るポリブチレンテレフタレート樹脂組成物は、目的に応じて、上述の(A)ポリブチレンテレフタレート樹脂、(B)ポリエチレンテレフタレート樹脂、(C)エポキシ基含有オレフィン系共重合体、及び(D)ガラス繊維以外の成分を任意に含んでもよい。(E)その他の成分としては、酸化防止剤、耐熱安定剤、分子量調整剤、紫外線吸収剤、帯電防止剤、染料、顔料、潤滑剤、離型剤、結晶化促進剤、結晶核剤、近赤外線吸収剤、難燃剤、難燃助剤、ガラス繊維以外の充填剤等が挙げられるがこれらに限定されない。
ポリブチレンテレフタレート樹脂組成物は、熱可塑性樹脂組成物の製造方法として知られる種々の方法によって製造することができる。好適な方法としては、例えば、1軸又は2軸押出機等の溶融混練装置を用いて、各成分を混練して押出しペレットとする方法が挙げられる。
本実施形態に係るポリブチレンテレフタレート樹脂組成物の成形品を得る方法としては、特に限定はなく、公知の方法を採用することができる。例えば、ポリブチレンテレフタレート樹脂組成物のペレットを所定の金型を装備した射出成形機に投入し、射出成形することで製造することができる。
上述のとおり、本実施形態に係るポリブチレンテレフタレート樹脂組成物は金属への密着性に優れるため、金属複合部品に好適に用いることができる。従って、本発明の一実施形態は、上述の実施形態に係るポリブチレンテレフタレート樹脂組成物の成形品からなる樹脂部と、金属部品とを含む金属複合部品に関する。
(1)ISO19095に規定される形状を有する金属複合部品試験片を作製し、
(2)ISO19095に規定されるように、金属部品を固定した状態で、金属部品から樹脂部を押し剥がすように加重し、
(3)金属部品から樹脂部が剥がれた時点での荷重(N)を測定し、接合強度(MPa)を算出する。
本実施形態に係る金属複合部品の製造方法は特に限定されないが、例えば、金属部品を金型に載置した後、成形機によりポリブチレンテレフタレート樹脂組成物を供給し、インサート成形により製造することができる。金属複合部品の製造に用いる成形機は、金属部品とポリブチレンテレフタレート樹脂組成物との複合成形体を形成できれば特に限定されず、射出成形機、押出し成形機、圧縮成形機等の従来金属複合部品の成形に使用される種々の成形機を使用できる。金属部品の金型への設置の容易さや装置の簡便さ、金属複合部品の生産性に優れる点で射出成形機を用いることが好ましい。その他の方法としては、予め射出成形法等の一般的な成形方法で樹脂組成物の成形品を製造し、金属部品と上記樹脂成形品とを、所望の接合位置で当接させ、当接面に熱を与えることで、樹脂成形品の接合面付近を溶融させて金属複合部品を製造する方法等が挙げられる。
各成分の詳細は以下の通りである。
PBT:固有粘度0.69のポリブチレンテレフタレート樹脂(ウィンテックポリマー株式会社製 ジュラネックス(登録商標))
PET:固有粘度0.68の非変性ポリエチレンテレフタレート樹脂
変性PET:固有粘度0.64の12.5モル%イソフタル酸変性ポリエチレンテレフタレート樹脂
PC:数平均分子量20000のポリカーボネート樹脂
EGMA系エラストマー1:エチレン・メチルアクリレート・グリシジルメタクリレート共重合体(エポキシ基含有量1質量%、メチルアクリレート単位含有量27質量%、グリシジルメタクリレート単位含有量3質量%)
EGMA系エラストマー2:エチレン・メチルアクリレート・グリシジルメタクリレート共重合体(エポキシ基含有量2質量%、メチルアクリレート単位含有量27質量%、グリシジルメタクリレート単位含有量6質量%)
EGMA系エラストマー3:エチレン・グリシジルメタクリレート共重合体(エポキシ基含有量4質量%、メチルアクリレート単位含有量0質量%、グリシジルメタクリレート単位含有量12質量%)
EGMA系エラストマー4:エチレン・グリシジルメタクリレート共重合体(エポキシ基含有量2質量%、メチルアクリレート単位含有量0質量%、グリシジルメタクリレート単位含有量6質量%)
コアシェル(グリシジル基不含):アクリル酸アルキル・メタクリル酸アルキル共重合体
エチレン-オクテン共重合体:エチレン-オクテン-1共重合体(ダウ・ケミカル日本株式会社製 エンゲージ 8440)
EEA:エチレン・エチルアクリレート共重合体(株式会社NUC製 NUC-6570)
エチレン-ブテン共重合体:(株式会社プライムポリマー製 ネオゼックス20201J)
ガラス繊維1:円形断面を有するガラス繊維(日東紡績株式会社製 CSF3PE-941、断面形状:円形(異形比1)、断面の直径13μm、長さ3.8mm)
ガラス繊維2:非円形断面を有するガラス繊維(日東紡績株式会社製 CSH3PA-860、断面形状:繭形(異形比2)、断面の長径20μm、断面の短径10μm、長さ3.0mm)
ガラス繊維3:非円形断面を有するガラス繊維(日東紡績株式会社製 CSG3PA-830、断面形状:長円形(異形比4)、断面の長径28μm、断面の短径7μm、長さ3.0mm)
得られたペレットを用いて、以下の評価を行った。結果を表1~5に示す。
(1)表面粗さ(Ra)
得られた樹脂組成物のペレットを、成形温度260℃、金型温度80℃、保圧力80MPaで、ISO3167(Type A試験片)に準じた試験片に成形した。試験片の形状を図2に示す。表面粗さ測定機(株式会社ミツトヨ製 サーフテストエクストリーム SV-3000)を用いて、環境条件下(通常約23℃)で、図2中の点Aと点A’を結ぶ直線上の任意の5点(各点の測定長:0.8mm)の算術表面粗さ(Ra)を測定し、その平均値を算出した。
得られた樹脂組成物のペレットを、成形温度260℃、金型温度80℃、保圧力80MPaで、ISO3167(Type A試験片)に準じた試験片に成形した。試験片の形状を図2に示す。デジタルノギス(株式会社ミツトヨ製 CD-45C)を用いて、環境条件下(通常約23℃)で、図2中のl3の長さ(mm)を測定し、当該箇所の金型寸法(180mm)で除して、下式に従って収縮率を算出した:
(式) 収縮率(%)={1-(l3/180)}×100(%)
得られた樹脂組成物のペレットを、成形温度260℃、金型温度80℃で、射出成形し、シャルピー衝撃試験片を作製し、ISO179/1eAに定められている評価基準に従い、23℃の条件で評価した。
(4-1)試験片作製
以下、樹脂組成物の金属への密着性の評価方法として、ISO19095に準拠して樹脂部と金属部品との接合強度を測定した。射出成形機(ソディック社製、TR-40VR)を用いて、金型温度を140℃に設定して、金型内に金属部品を載置した後に、以下の条件にて、密着性評価用の試験片を射出成形した。なお、金属部品は、ケミカルエッチングの類として知られる“大成プラス社のNMT処理”を施し表面を粗化されたアルミニウム(A5052)の板を用いた。
射出成形条件
シリンダー(樹脂)温度:260℃
射出速度 :100mm/秒
保圧力 :98MPa
(4-2)評価
まず、ISO19095に準拠して、樹脂部とアルミニウム板とを剥離させた時の最大荷重(N)を測定した。密着性の評価には、(株)オリエンテック社製、テンシロンUTA-50KNを用い、環境条件下(通常約23℃)で行った。表1~4中、A~Dは下記の通りである。
A: ≧30MPa
B: 25MPa以上30MPa未満
C: 20MPa以上25MPa未満
D: 20MPa未満
Agilent社製ネットワークアナライザー8757D及び関東電子株式会社製空洞共振器複素誘電率測定装置を用い、2GHzにおける誘電正接を空洞共振器摂動法により23℃で測定した。なお、測定には、成形温度260℃、金型温度80℃で射出成形して作製した所定の形状(断面1.8mm×1.8mm、長さ80mm)の試験片を用いた。
本明細書に記載された全ての文献、特許出願、および技術規格は、個々の文献、特許出願、及び技術規格が参照により取り込まれることが具体的かつ個々に記された場合と同程度に、本明細書に参照により取り込まれる。
Claims (11)
- (A)ポリブチレンテレフタレート樹脂と、(B)ポリエチレンテレフタレート樹脂と、(c-1)α-オレフィン由来の構成単位及び(c-2)α,β-不飽和酸のグリシジルエステル由来の構成単位を含む(C)エポキシ基含有オレフィン系共重合体と、を含み、
成形温度260℃、金型温度80℃、及び保圧力80MPaの条件で成形した、ISO3167 Type A試験片に準じた成形品の表面粗さが0.50μm以下であり、
ポリブチレンテレフタレート樹脂組成物全体に対し、(C)エポキシ基含有オレフィン系共重合体中のエポキシ基の含有量が0.01質量%以上0.35質量%以下、及び、ポリブチレンテレフタレート樹脂組成物全体に対し、(メタ)アクリル酸エステル構造の含有量が1.5質量%以下である、
ポリブチレンテレフタレート樹脂組成物。 - 空洞共振器摂動法で測定した2GHzにおける誘電正接が0.01以下である、請求項1に記載のポリブチレンテレフタレート樹脂組成物。
- さらに(D)ガラス繊維を含む、請求項1又は2に記載のポリブチレンテレフタレート樹脂組成物。
- 成形品のISO179/1eAに準拠する方法で測定したシャルピー衝撃強度が7kJ/m2以上である、請求項1~3のいずれか1項に記載のポリブチレンテレフタレート樹脂組成物。
- (C)エポキシ基含有オレフィン系共重合体が、(メタ)アクリル酸エステル由来の構成単位を含まない、請求項1~4のいずれか1項に記載のポリブチレンテレフタレート樹脂組成物。
- 成形温度260℃、金型温度80℃、及び保圧力80MPaの条件で成形した、ISO3167 Type A試験片に準じた成形品の収縮率が0.20以下である、請求項1~5のいずれか1項に記載のポリブチレンテレフタレート樹脂組成物。
- 金属複合部品用である、請求項1~6のいずれか1項に記載のポリブチレンテレフタレート樹脂組成物。
- 請求項1~7のいずれか1項に記載のポリブチレンテレフタレート樹脂組成物からなる樹脂部と、金属部品とを含む、金属複合部品。
- 前記金属部品は微細凹凸処理表面を有する、請求項8に記載の金属複合部品。
- 前記ポリブチレンテレフタレート樹脂組成物からなる樹脂部と、金属部品との接合強度が30MPa以上である、請求項8又は9に記載の金属複合部品。
- 前記金属複合部品が、通信機器部品である、請求項8~10のいずれか1項に記載の金属複合部品。
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019172216A1 (ja) * | 2018-03-07 | 2019-09-12 | 東洋紡株式会社 | 無機強化熱可塑性ポリエステル樹脂組成物 |
WO2019213920A1 (en) * | 2018-05-10 | 2019-11-14 | Ticona Llc | Polymer composition with reduced dielectric constant |
WO2020059651A1 (ja) | 2018-09-20 | 2020-03-26 | 東レ株式会社 | 熱可塑性ポリエステル樹脂組成物および成形品 |
CN111094451A (zh) * | 2017-09-19 | 2020-05-01 | 东洋纺株式会社 | 无机强化热塑性聚酯树脂组合物 |
US10752771B2 (en) | 2017-12-29 | 2020-08-25 | Sabic Global Technologies B.V. | Low dielectric constant (DK) and dissipation factor (DF) material for nano-molding technology (NMT) |
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Families Citing this family (1)
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---|---|---|---|---|
CN108395681B (zh) * | 2018-03-02 | 2020-09-22 | 东丽塑料(深圳)有限公司 | 热塑性聚酯树脂组合物及其成型品 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11335534A (ja) * | 1998-05-25 | 1999-12-07 | Toray Ind Inc | ハウジング用樹脂組成物およびそれからなるハウジング |
JP2000178422A (ja) * | 1998-12-21 | 2000-06-27 | Toray Ind Inc | 電気製品ターミナル部材用難燃性ポリブチレンテレフタレート樹脂組成物およびそれからなる電気製品ターミナル部材 |
JP2003291261A (ja) * | 2002-04-02 | 2003-10-14 | Nippon Steel Corp | エンボス化粧金属板、その製法及び単層エンボス化粧金属板積層用樹脂フィルム |
WO2014021409A1 (ja) * | 2012-08-01 | 2014-02-06 | ウィンテックポリマー株式会社 | 電子機器用筐体 |
JP2014185255A (ja) * | 2013-03-25 | 2014-10-02 | Toray Ind Inc | 振動溶着用ポリエステル樹脂組成物 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69839164T2 (de) * | 1997-11-26 | 2009-03-05 | Nippon Steel Corp. | Harzbeschichtungszusammensetzung für Metallbleche, Harzfolien, auf die sie aufgetragen sind, harzbeschichtetes Metallblech und Metallbehälter |
JP4021741B2 (ja) * | 2002-10-24 | 2007-12-12 | 三菱エンジニアリングプラスチックス株式会社 | ポリカーボネート樹脂組成物 |
JP2006027018A (ja) | 2004-07-14 | 2006-02-02 | Taisei Plas Co Ltd | 金属と樹脂の複合体およびその製造方法 |
JP2006249260A (ja) * | 2005-03-10 | 2006-09-21 | Toray Ind Inc | レーザー溶着可能な耐加水分解性ポリエステル樹脂組成物 |
JP2006249360A (ja) * | 2005-03-14 | 2006-09-21 | Fujikura Kasei Co Ltd | 着色塗料組成物 |
JP5242150B2 (ja) | 2007-12-21 | 2013-07-24 | ウィンテックポリマー株式会社 | 複合成形体 |
JP5428327B2 (ja) * | 2007-12-26 | 2014-02-26 | 東レ株式会社 | 熱可塑性ポリエステル樹脂組成物 |
CN102933655B (zh) * | 2010-06-09 | 2015-12-09 | 胜技高分子株式会社 | 聚对苯二甲酸丁二醇酯树脂组合物、金属复合部件、和金属复合部件的制造方法 |
CN102933656B (zh) * | 2010-06-09 | 2014-10-29 | 胜技高分子株式会社 | 聚对苯二甲酸丁二醇酯树脂组合物、金属复合部件、及金属复合部件的制造方法 |
JP4835776B2 (ja) * | 2010-09-17 | 2011-12-14 | 東レ株式会社 | ポリブチレンテレフタレート樹脂組成物および成形品 |
JP5895567B2 (ja) * | 2012-02-07 | 2016-03-30 | 東洋紡株式会社 | 無機強化熱可塑性ポリエステル樹脂組成物 |
JP6132669B2 (ja) * | 2013-06-11 | 2017-05-24 | ポリプラスチックス株式会社 | 金属樹脂複合成形体及びその製造方法 |
US20170096557A1 (en) * | 2014-03-27 | 2017-04-06 | Polyplastics Co., Ltd. | Polyarylene sulfide-derived resin composition and insert molded body |
JP2015229679A (ja) * | 2014-06-03 | 2015-12-21 | 住友化学株式会社 | セルロース組成物 |
-
2016
- 2016-12-26 JP JP2017559185A patent/JP6527964B2/ja active Active
- 2016-12-26 KR KR1020187017916A patent/KR102367267B1/ko active IP Right Grant
- 2016-12-26 WO PCT/JP2016/088757 patent/WO2017115757A1/ja active Application Filing
- 2016-12-26 CN CN201680076371.5A patent/CN108699323B/zh active Active
- 2016-12-27 TW TW105143306A patent/TWI689410B/zh active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11335534A (ja) * | 1998-05-25 | 1999-12-07 | Toray Ind Inc | ハウジング用樹脂組成物およびそれからなるハウジング |
JP2000178422A (ja) * | 1998-12-21 | 2000-06-27 | Toray Ind Inc | 電気製品ターミナル部材用難燃性ポリブチレンテレフタレート樹脂組成物およびそれからなる電気製品ターミナル部材 |
JP2003291261A (ja) * | 2002-04-02 | 2003-10-14 | Nippon Steel Corp | エンボス化粧金属板、その製法及び単層エンボス化粧金属板積層用樹脂フィルム |
WO2014021409A1 (ja) * | 2012-08-01 | 2014-02-06 | ウィンテックポリマー株式会社 | 電子機器用筐体 |
JP2014185255A (ja) * | 2013-03-25 | 2014-10-02 | Toray Ind Inc | 振動溶着用ポリエステル樹脂組成物 |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111094451B (zh) * | 2017-09-19 | 2022-05-13 | 东洋纺株式会社 | 无机强化热塑性聚酯树脂组合物 |
CN111094451A (zh) * | 2017-09-19 | 2020-05-01 | 东洋纺株式会社 | 无机强化热塑性聚酯树脂组合物 |
US10752771B2 (en) | 2017-12-29 | 2020-08-25 | Sabic Global Technologies B.V. | Low dielectric constant (DK) and dissipation factor (DF) material for nano-molding technology (NMT) |
WO2019172216A1 (ja) * | 2018-03-07 | 2019-09-12 | 東洋紡株式会社 | 無機強化熱可塑性ポリエステル樹脂組成物 |
JPWO2019172216A1 (ja) * | 2018-03-07 | 2020-09-10 | 東洋紡株式会社 | 無機強化熱可塑性ポリエステル樹脂組成物 |
WO2019213920A1 (en) * | 2018-05-10 | 2019-11-14 | Ticona Llc | Polymer composition with reduced dielectric constant |
JPWO2020004597A1 (ja) * | 2018-06-29 | 2021-07-15 | 出光興産株式会社 | 樹脂金属複合体及びその製造方法 |
JP7335879B2 (ja) | 2018-06-29 | 2023-08-30 | 出光興産株式会社 | 樹脂金属複合体及びその製造方法 |
KR20210057015A (ko) | 2018-09-20 | 2021-05-20 | 도레이 카부시키가이샤 | 열가소성 폴리에스테르 수지 조성물 및 성형품 |
JPWO2020059651A1 (ja) * | 2018-09-20 | 2021-01-07 | 東レ株式会社 | 熱可塑性ポリエステル樹脂組成物および成形品 |
WO2020059651A1 (ja) | 2018-09-20 | 2020-03-26 | 東レ株式会社 | 熱可塑性ポリエステル樹脂組成物および成形品 |
US11939466B2 (en) | 2018-09-20 | 2024-03-26 | Toray Industries, Inc. | Thermoplastic polyester resin composition and molded article |
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JP7397418B2 (ja) | 2021-03-26 | 2023-12-13 | 東洋紡エムシー株式会社 | ポリエステル樹脂組成物、及びホットスタンプ箔による加飾が施された成形品 |
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