WO2022113997A1 - 繊維強化樹脂組成物および成形体 - Google Patents
繊維強化樹脂組成物および成形体 Download PDFInfo
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- WO2022113997A1 WO2022113997A1 PCT/JP2021/042978 JP2021042978W WO2022113997A1 WO 2022113997 A1 WO2022113997 A1 WO 2022113997A1 JP 2021042978 W JP2021042978 W JP 2021042978W WO 2022113997 A1 WO2022113997 A1 WO 2022113997A1
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- NKHAVTQWNUWKEO-IHWYPQMZSA-N methyl hydrogen fumarate Chemical compound COC(=O)\C=C/C(O)=O NKHAVTQWNUWKEO-IHWYPQMZSA-N 0.000 description 1
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- DFFZOPXDTCDZDP-UHFFFAOYSA-N naphthalene-1,5-dicarboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=CC=CC2=C1C(O)=O DFFZOPXDTCDZDP-UHFFFAOYSA-N 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- VCAISILSXYFPGO-UHFFFAOYSA-N nonadecane-1,19-diamine Chemical compound NCCCCCCCCCCCCCCCCCCCN VCAISILSXYFPGO-UHFFFAOYSA-N 0.000 description 1
- SXJVFQLYZSNZBT-UHFFFAOYSA-N nonane-1,9-diamine Chemical compound NCCCCCCCCCN SXJVFQLYZSNZBT-UHFFFAOYSA-N 0.000 description 1
- CJYCVQJRVSAFKB-UHFFFAOYSA-N octadecane-1,18-diamine Chemical compound NCCCCCCCCCCCCCCCCCCN CJYCVQJRVSAFKB-UHFFFAOYSA-N 0.000 description 1
- PBLZLIFKVPJDCO-UHFFFAOYSA-N omega-Aminododecanoic acid Natural products NCCCCCCCCCCCC(O)=O PBLZLIFKVPJDCO-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920000343 polyazomethine Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 239000004631 polybutylene succinate Substances 0.000 description 1
- 229920002961 polybutylene succinate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005996 polystyrene-poly(ethylene-butylene)-polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 235000019512 sardine Nutrition 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- SONHXMAHPHADTF-UHFFFAOYSA-M sodium;2-methylprop-2-enoate Chemical compound [Na+].CC(=C)C([O-])=O SONHXMAHPHADTF-UHFFFAOYSA-M 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- SWAXTRYEYUTSAP-UHFFFAOYSA-N tert-butyl ethaneperoxoate Chemical compound CC(=O)OOC(C)(C)C SWAXTRYEYUTSAP-UHFFFAOYSA-N 0.000 description 1
- MSVPBWBOFXVAJF-UHFFFAOYSA-N tetradecane-1,14-diamine Chemical compound NCCCCCCCCCCCCCCN MSVPBWBOFXVAJF-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- BPSKTAWBYDTMAN-UHFFFAOYSA-N tridecane-1,13-diamine Chemical compound NCCCCCCCCCCCCCN BPSKTAWBYDTMAN-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- KLNPWTHGTVSSEU-UHFFFAOYSA-N undecane-1,11-diamine Chemical compound NCCCCCCCCCCCN KLNPWTHGTVSSEU-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- 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
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- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
- C08J5/08—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/248—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using pre-treated fibres
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/30—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by oxidation
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2477/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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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
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Definitions
- Fiber reinforced plastic in which various reinforcing fibers are dispersed in thermoplastic resin has high strength, rigidity, impact resistance, and heat resistance, and is used for various purposes.
- Patent Document 1 discloses that a fiber-reinforced resin composition containing polypropylene, polyamide or polyphenylene sulfide in a specific ratio, and aminosilane-treated glass fiber exhibits a high heat distortion temperature.
- the fiber reinforced resin composition is required to have the property that the material does not deform even when used for a long period of time.
- the heat distortion temperature under a high load is not sufficiently high.
- Patent Document 1 describes that if a compatibilizer such as a modified polypropylene resin is added to the fiber reinforced resin composition, the heat distortion temperature may not be improved.
- the compatibilizer is not added, the long-term physical properties (for example, tensile creep resistance) may be inferior.
- the resin component used in these reinforced fiber resin compositions has excellent impregnation property into the fiber, the interaction between the fiber and the resin component becomes strong, so that the improvement of the impregnation property improves the mechanical properties, heat resistance, and durability. Is essential for.
- the subject of the present invention is excellent heat-resistant deformation under high load, excellent balance between heat-resistant deformation and tensile creep resistance while containing a compatibilizer, and the contained resin component impregnates the reinforcing fiber. It is an object of the present invention to provide an excellent fiber reinforced resin composition.
- the content of the polyolefin resin (A) is 5 to 60 parts by mass in a total of 100 parts by mass of the content of the polyolefin resin (A), the resin (B) and the fiber (C), and the resin (B). ) Is 5 to 60 parts by mass, and the content of the fiber (C) is 10 to 70 parts by mass.
- the content of the modified polyolefin resin (D) is 0.05 to 0.95 parts by mass with respect to the total content of 100 parts by mass of the polyolefin resin (A), the resin (B) and the fiber (C).
- the content of the resin (B) is 8 to 92 parts by mass in the total content of the polyolefin resin (A) and the resin (B) of 100 parts by mass.
- the fiber reinforced resin composition according to any one.
- [5] The fiber-reinforced resin composition according to any one of [1] to [4], wherein the polyolefin resin (A) is polypropylene.
- [6] The fiber-reinforced resin composition according to any one of [1] to [5], wherein the fiber (C) is at least one selected from glass fiber and carbon fiber.
- [8] The molded body according to [7], which is an automobile part.
- FIG. 1 is a schematic view of a mold used for impregnation property evaluation in Examples.
- the numerical range represented by using “-" in the present specification means a range including the numerical values before and after "-" as the lower limit value and the upper limit value.
- the fiber-reinforced resin composition of the present embodiment (hereinafter, also referred to as “composition (I)”) is Polyolefin resin (A) and One or more resins (B) selected from the group consisting of polyamide resin (B1) and polyester resin (B2), and Fiber (C) and Contains the modified polyolefin resin (D).
- Polypropylene is preferable as the polyolefin resin (A).
- the melting point measured by a polypropylene differential scanning calorimeter (heating rate: 10 ° C./min) is preferably 130 ° C. or higher, more preferably 140 ° C. or higher, preferably 180 ° C. or lower, and more preferably 170 ° C. or lower. Is.
- the melt viscosity ⁇ A of the polyolefin resin (A) at a shear rate of 120 / sec at 250 ° C. is preferably 30 Pa ⁇ s or more, preferably 160 Pa ⁇ s. -S or less, more preferably 100 Pa ⁇ s or less.
- the resin (A) can be used alone or in combination of two or more. That is, the resin (A) may use one kind of the olefin polymer, or may be a mixture of two or more kinds of the olefin polymer.
- the resin (B) is one or more resins selected from the group consisting of the polyamide resin (B1) and the polyester resin (B2), and the polyamide resin (B1) is preferable.
- the resin (B) is a component that improves the heat resistance, long-term durability, and mechanical characteristics of the molded product containing the composition (I).
- the melt viscosity ⁇ B of the resin (B) at a shear rate of 120 / sec at 250 ° C. is preferably 100 Pa ⁇ s or more, preferably 200 Pa ⁇ s or less, and more preferably 120 Pa ⁇ s or less.
- Polyamide resin (B1) examples include a polymer of one or more amino acid-based monomers selected from a compound having an amino group and a carboxy group and a dehydration condensate thereof, a polymer of a diamine and a dicarboxylic acid, and the above. Examples thereof include a copolymer of an amino acid-based monomer, a diamine and a dicarboxylic acid.
- dicarboxylic acid examples include oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brushphosphate, tetradecanedioic acid, and pentadecane.
- polyamide resin (B1) examples include polyamide 6, polyamide 66, polyamide 610, polyamide 612, polyamide 614, polyamide 11, polyamide 12, polyamide 6T, polyamide 6I, polyamide 9T, polyamide M5T, polyamide 1010, and polyamide. 1012, Polyamide 10T, Polyamide MXD6, Polyamide 6T / 66, Polyamide 6T / 6I, Polyamide 6T / 6I / 66, Polyamide 6T / 2M-5T, Polyamide 9T / 2M-8T. Among these, polyamide 6 and polyamide 66 are preferable, and polyamide 6 is more preferable.
- the MFR (JIS K7210 compliant, 2.16 kg load) of the polyamide resin (B1) is preferably 1 g / 10 min or more, more preferably 5 g / 10 min or more, still more preferably 10 g / 10 min or more, still more preferably 20 g / 10 min or more. Particularly preferably, it is 60 g / 10 min or more.
- the value of the MFR is a certain value or more, when the composition (I) is prepared, the resin component with respect to the fiber (C) described later (that is, among the components constituting the composition (I), the resin (A), It tends to have excellent impregnation properties (components other than the fiber (C), including the resin (B) and the resin (D) described later).
- the MFR is preferably 500 g / 10 min or less, more preferably 300 g / 10 min or less, and further preferably 100 g / 10 min or less.
- the measurement temperature of MFR differs depending on the polymer species, for example, in the case of polyamide 6, it is usually 230 ° C, and in the case of polyamide 66, it is usually 270 ° C.
- the melting point of the polyamide resin (B1) measured by a differential scanning calorimeter (heating rate: 10 ° C./min) is preferably 200 ° C. or higher, more preferably 210 ° C. or higher, still more preferably 220 ° C. or higher, and is preferable. Is 300 ° C. or lower, more preferably 280 ° C. or lower, still more preferably 270 ° C. or lower.
- the polyester resin (B2) is a copolymer of one or more selected from polycarboxylic acids and their anhydrides and a polyol, and is a resin having a hydrophilic group in a molecular skeleton including a terminal, by a known method. Can be manufactured.
- the hydrophilic group include a polyalkylene oxide group, a sulfonate group, a carboxy group, and a neutralizing salt thereof.
- polycarboxylic acid and its anhydride examples include aromatic dicarboxylic acids, sulfonate-containing aromatic dicarboxylic acids, aliphatic dicarboxylic acids, alicyclic dicarboxylic acids, trifunctional or higher functional polycarboxylic acids, and anhydrides thereof. Can be mentioned.
- aromatic dicarboxylic acid and its anhydride examples include phthalic acid, terephthalic acid, isophthalic acid, orthophthalic acid, 1,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, and phthalic anhydride.
- Examples of the sulfonate-containing aromatic dicarboxylic acid include sulfoterephthalate, 5-sulfoisophthalate, and 5-sulfoortophthalate.
- Examples of aliphatic dicarboxylic acids and alicyclic dicarboxylic acids and their anhydrides include fumaric acid, maleic acid, itaconic acid, succinic acid, adipic acid, azelaic acid, sebacic acid, dimer acid, and 1,4-cyclohexanedicarboxylic acid. Examples thereof include acid, succinic anhydride and maleic anhydride.
- Examples of the trifunctional or higher functional polycarboxylic acid and its anhydride include trimellitic acid, pyromellitic acid, trimellitic acid anhydride, and pyromellitic acid anhydride.
- Examples of the polyol include diols and trifunctional or higher functional polyols. Examples of the diol include ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, polypropylene glycol, polybutylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, and poly.
- Examples thereof include tetramethylene glycol, 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol, bisphenol A, and alkylene oxide adducts of bisphenol A.
- Examples of the trifunctional or higher functional polyol include trimethylolpropane, glycerin, and pentaerythritol.
- the polyester resin (B2) may be a polymer of one or more monomers selected from a compound having a hydroxy group and a carboxy group and a dehydration condensate thereof.
- Examples of the compound having a hydroxy group and a carboxy group include lactic acid.
- polyester resin (B2) examples include polybutylene terephthalate, polyethylene terephthalate, polybutylene succinate, polyethylene succinate, and polylactic acid.
- the melting point measured by the differential scanning calorimeter (heating rate: 10 ° C./min) of the polyester resin (B2) is preferably 200 ° C. or higher, more preferably 210 ° C. or higher, preferably 300 ° C. or lower, more preferably. Is below 280 ° C.
- the composition (I) contains a fiber (C) which is a reinforcing fiber.
- either an organic fiber or an inorganic fiber may be used.
- glass fiber carbon fiber
- cotton fiber silk fiber, wood fiber, cellulose fiber and other natural fibers.
- Ceramic fibers such as silicon carbide fiber, silicon dioxide fiber, alumina fiber, zirconia fiber; Total aromatic polyamide (aramid), Total aromatic polyester, Total aromatic polyesteramide, Total aromatic polyether, Total aromatic polycarbonate, Total aromatic polyazomethin, polyphenylene sulfide, polyparaphenylene benzobisoxazole, poly (para-phenylene benzobisthiazole), polybenzoimidazole, polyether ether ketone, polyamideimide, polyimide, polytetrafluoroethylene, polyvinyl alcohol, polyolefin, Examples thereof include synthetic fibers made of synthetic resins such as polyarylate and fluoropolymers. Among these, glass fiber and carbon fiber are preferable, and glass fiber is more preferable.
- the fiber (C) may be a short fiber or a long fiber.
- the short fibers may be chopped fiber (cut fiber) -like short fibers or pulp-like short fibers having fibril. Further, the fiber (C) may be a single fiber or a plurality of single fibers twisted together.
- the average fiber length of the fiber (C) is preferably 0.01 mm or more, more preferably 0.1 mm or more, still more preferably 1 mm or more, preferably 100 mm or less, more preferably 50 mm or less, still more preferably 30 mm or less. be.
- the ratio of the number of fibers having a fiber length of less than 0.1 mm to the total number of reinforcing fibers is preferably 18% or less.
- the average fiber diameter of the fiber (C) is preferably 1 ⁇ m or more, more preferably 5 ⁇ m or more, preferably 30 ⁇ m or less, and more preferably 20 ⁇ m or less.
- the reinforcing fibers are less likely to be damaged during molding, the impact strength of the obtained molded body tends to be high, the appearance of the molded body is improved, and the rigidity and heat resistance of the molded body are improved. There is a tendency to obtain a sufficient reinforcing effect on mechanical properties such as properties.
- the average fiber length and average fiber diameter for example, a photograph of the reinforcing fibers was taken with an optical microscope, and the lengths or diameters of 100 randomly selected reinforcing fibers were measured in the obtained photographs, and each was calculated as an arithmetic average. It can be obtained by doing.
- carbon fiber various known carbon fibers can be used, for example, polyacrylic nitrile-based, rayon-based, pitch-based, polyvinyl alcohol-based, regenerated cellulose-based, pitch-based produced from mesophase pitch, and the like. Examples include carbon fiber.
- the carbon fiber may be a general-purpose fiber or a high-strength fiber. Further, the carbon fiber may be a long fiber, a short fiber, or a recycled fiber.
- Cellulose fiber is preferable as the natural fiber.
- cellulose fiber cellulose nanofiber, lignocellulose nanofiber, and cellulose microfiber are preferable.
- the fiber (C) may be the fiber itself described above (that is, a fiber that has not been surface-treated; hereinafter, “fiber (C0)”), or the fiber (C0) described above may be surface-treated.
- the fiber may be a fiber (hereinafter referred to as “surface-treated fiber (C1)”).
- the "surface-treated fiber (C1)” may be a fiber surface-treated with various sizing agents (hereinafter, “sizing agent-treated fiber (C1A)”).
- the “bundle agent treated fiber (C1A)” often contains the fiber (C0) and a sizing agent that coats the fiber (C0).
- the sizing agent for example, an acrylic sizing agent, a urethane sizing agent, or an acid copolymer-based sizing agent can be used. Of these, an acid copolymer-based focusing agent is preferable.
- the "binding agent-treated fiber (C1A)" is a glass fiber roving surface-treated with a sizing agent (hereinafter, "focusing agent-treated glass fiber roving")
- a resin to the sizing agent-treated fiber is preferably an acid copolymer-based sizing agent.
- An acrylic sizing agent is also one of the suitable sizing agents.
- the "focusing agent-treated fiber (C1A)" is a chopped strand whose surface is treated with a fiber other than the "focusing agent-treated glass fiber roving", for example, a “focusing agent-treated chopped strand” (hereinafter, "focusing agent-treated chopped strand”).
- the sizing agent constituting the "focusing agent-treated chopped strand” is not limited to the acid copolymer-based sizing agent, but other than the acid copolymer-based sizing agent such as an acrylic-based sizing agent and a urethane-based sizing agent. It may be a sizing agent.
- the resin component is the same as the "sizing agent-treated chopped strand" containing the acid copolymer-based sizing agent. It is preferable because the impregnation is sufficiently performed.
- a silane-based coupling agent a titanate-based coupling agent, an aluminum-based coupling agent, a zirconium-based coupling agent, a borane-based coupling agent, a curing catalyst, a lubricant, a filler, a thixo-imparting agent, and adhesion.
- Examples of the surface treatment method for the reinforcing fiber using the sizing agent include a method of applying the sizing agent to the surface of the reinforcing fiber with an applicator or the like, a method of immersing the reinforcing fiber in the sizing agent, and a method of atomizing the sizing agent to reinforce the fibers.
- a method of spraying the reinforcing fiber on the roller and a method of contacting the reinforcing fiber with the roller to which the sizing agent is attached can be mentioned.
- the surface treatment method may be either a batch method or a continuous method.
- the mass ratio of the sizing agent in the fiber (C), that is, the ignition loss is preferably 0.1 to 1.5% by mass.
- the mass ratio (loss of ignition) of the sizing agent is measured for the fiber obtained by completely volatilizing the volatile substance by applying the sizing agent to the reinforcing fibers with an applicator or the like and drying the fibers.
- the ignition loss of the sizing agent applied to the surface of the reinforcing fiber is 0.1% by mass or more, the interface between the resin (B) and the fiber (C) described above can be stabilized and heat resistance can be exhibited. Therefore, it is preferable.
- the ignition loss of the sizing agent applied to the surface of the reinforcing fiber is 1.5% by mass or less, improvement in physical properties such as heat resistance is observed, which is preferable.
- the ignition loss of the sizing agent in the fiber (C) is a value measured according to JIS R 3420 (2006) 7.3.2.
- the surface-treated reinforcing fibers may be focused to a predetermined number, wound, cut and / or pulverized as necessary, and processed into chopped strands, milled fibers, yarns, rovings and the like.
- One kind or two or more kinds of fibers (C) can be used.
- the modified polyolefin resin (D) is, for example, a resin obtained by modifying a polyolefin resin (D1) with one or more components (D2) selected from an unsaturated carboxylic acid and a derivative thereof.
- polyolefin resin (D1) for example, the polyolefin resin described in the item of ⁇ polyolefin resin (A)> can be used, and polypropylene is preferable. Further, as another example of a suitable polyolefin resin that can be used as the polyolefin resin (D1), ethylene / butene copolymer, SEBS, polyethylene and the like can be mentioned.
- the polyolefin resin (D1) that can be used in the present invention may be one kind alone or a combination of two or more kinds.
- the unsaturated carboxylic acid that can be used as the component (D2) include unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, sorbic acid, and angelic acid; maleic acid, fumaric acid, itaconic acid, and citraconic acid.
- unsaturated dicarboxylic acids such as mesaconic acid, tetrahydrophthalic acid, norbornnedicarboxylic acid and bicyclo [2.2.1] hept-2-ene-5,6-dicarboxylic acid.
- Examples of the derivative of the unsaturated carboxylic acid that can be used as the component (D2) include acid anhydrides, acid halides, esters, amides, imides, and metal salts of unsaturated carboxylic acids, and specific examples thereof include.
- Unsaturated dicarboxylic acid anhydrides such as maleic anhydride, itaconic anhydride, citraconic anhydride, tetrahydrophthalic anhydride, bicyclo [2.2.1] hept-2-ene-5,6-dicarboxylic acid anhydride; Unsaturated dicarboxylic acid anhydrides such as malenyl chloride; Acrylic acid esters such as methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, methacrylic acid esters such as methyl methacrylate and glycidyl methacrylate, monomethyl maleate, monoethyl maleate, dimethyl maleate, diethyl maleate, etc.
- Maleic acid ester diethyl fumarate, dimethyl itacone, diethyl citraconate, dimethyl tetrahydrophthalate, bicyclo [2.2.1] hepto-2-ene-5,6-dicarboxylic acid dimethyl;
- Examples thereof include acrylamide, maleic acid amide, maleimide, sodium acrylate, and sodium methacrylate.
- unsaturated dicarboxylic acid and its derivative are preferable, unsaturated dicarboxylic acid and its anhydride are more preferable, and maleic acid and maleic anhydride are further preferable.
- a combination of acrylic acid ester and glycidyl methacrylate is also a suitable example.
- the component (D2) may be used alone or in combination of two or more.
- a conventionally known method can be used, and examples thereof include a method of grafting a component (D2) on a polyolefin resin (D1).
- the component (D2) is grafted onto the polyolefin resin (D1) which is the main graft chain in the presence of a radical polymerization initiator.
- a conventionally known method can be used, and examples thereof include a solution method and a melt-kneading method.
- Examples thereof include a method in which the component (D2) and the radical polymerization initiator are brought into contact with each other under melt-kneading at a temperature equal to or higher than the melting point of (D1), for example, 180 to 300 ° C.
- solvent used in the solution method examples include aromatic hydrocarbon solvents such as toluene and xylene; aliphatic hydrocarbon solvents such as hexane, heptane, octane and decane; and alicyclic hydrocarbons such as cyclohexane and methylcyclohexane.
- Chlorinated hydrocarbon solvent such as trichloroethylene, perchloroethylene, dichloroethylene, dichloroethane, chlorobenzene; aliphatic alcohol solvent such as ethanol and isopropanol; ketone solvent such as acetone, methylisobutylketone and methylethylketone; methyl acetate , Ethyl acetate, butyl acetate and the like, and ester-based solvents can be mentioned.
- Chlorinated hydrocarbon solvent such as trichloroethylene, perchloroethylene, dichloroethylene, dichloroethane, chlorobenzene
- aliphatic alcohol solvent such as ethanol and isopropanol
- ketone solvent such as acetone, methylisobutylketone and methylethylketone
- methyl acetate Ethyl acetate, butyl acetate and the like
- ester-based solvents can be mentioned.
- radical polymerization initiator examples include organic peroxides and azo compounds.
- organic peroxide examples include benzoyl peroxide, 2,4-dichlorobenzoyl peroxide, m-trioil peroxide, di-t-butyl peroxide, and dicumyl peroxide, (2,5-dimethyl-2).
- azo compound examples include azoisobutyronitrile and dimethylazoisobutyrate.
- the radical polymerization initiator includes azoisobutyronitrile and dimethylazoisobutyrate. One kind or two or more kinds can be used.
- the modified polyolefin resin (D) can also be obtained, for example, by copolymerizing an olefin with the component (D2).
- the olefin the olefin for forming the above-mentioned polyolefin resin (D1) can be used.
- the above-mentioned copolymerization method for example, a conventionally known radical copolymerization method can be used.
- the content of the structure derived from the component (D2) in the modified polyolefin resin (D) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and preferably 5% by mass or less, more preferably. Is 1% by mass or less.
- the content can be determined from a calibration curve prepared separately based on the peak area of 1670 to 1810 cm -1 by measuring the infrared absorption spectrum of the resin. Even when a component (D2) other than maleic acid is used, the content can be determined by infrared absorption spectroscopy or the like.
- modified polyolefin resin (D) one or more resins selected from modified polypropylene and modified polyethylene are preferable, and one selected from maleic acid-modified polypropylene, maleic anhydride-modified polypropylene, maleic acid-modified polyethylene and anhydrous maleic acid-modified polyethylene 1 More than one kind of resin is more preferable, and one or more kinds of resins selected from maleic acid-modified polypropylene and anhydrous maleic acid-modified polypropylene are further preferable.
- the composition (I) may contain other components other than the above as long as the object of the present invention is not impaired.
- other components include thermoplastic resins other than the polyolefin resin (A), the resin (B) and the modified polyolefin resin (D), flame retardants, flame retardant aids, fillers, colorants, antibacterial agents, and the like.
- Antistatic agents can be mentioned. These can be used alone or in combination of two or more.
- thermoplastic resins examples include styrene-butadiene-styrene copolymer (SBS), styrene-isoprene-styrene copolymer (SIS), styrene-ethylene / butylene-styrene copolymer (SEBS), and styrene-.
- SBS styrene-butadiene-styrene copolymer
- SIS styrene-isoprene-styrene copolymer
- SEBS styrene-ethylene / butylene-styrene copolymer
- SEPS styrene-based thermoplastic elastomers
- the flame retardant examples include a halogen-based flame retardant (eg, a halogenated aromatic compound), a phosphorus-based flame retardant (eg, a nitrogen-containing phosphate compound, a phosphoric acid ester), and a nitrogen-based flame retardant (eg, guanidine, triazine). , Melamine and derivatives thereof), inorganic flame retardants (eg metal hydroxides), boron flame retardants, silicone flame retardants, sulfur flame retardants, red phosphorus flame retardants.
- a halogen-based flame retardant eg, a halogenated aromatic compound
- a phosphorus-based flame retardant eg, a nitrogen-containing phosphate compound, a phosphoric acid ester
- a nitrogen-based flame retardant eg, guanidine, triazine.
- inorganic flame retardants eg metal hydroxides
- boron flame retardants boron flame retardants
- silicone flame retardants sulfur flame retardants
- Examples of the flame retardant aid include various antimony compounds, metal compounds containing zinc, metal compounds containing bismuth, magnesium hydroxide, and clay silicates.
- Examples of the filler include glass components (eg, glass beads, glass flakes), silica, graphite, silicate compounds (eg, calcium silicate, aluminum silicate, kaolin, talc, clay), metal oxides (eg, iron oxide, etc.). Examples thereof include carbonates and sulfates of metals such as titanium oxide, zinc oxide, antimony oxide, and alumina), calcium, magnesium, and zinc.
- composition (I) By using the composition (I), it is possible to produce a molded body having excellent tensile creep resistance, flexural modulus and bending strength while maintaining high heat-resistant deformation under a high load.
- the content of the resin (B) is 5 parts by mass or more, preferably 10 parts by mass or more; 60 parts by mass. Hereinafter, it is preferably 50 parts by mass or less.
- the content of the resin (B) is 5 to 60 parts by mass, the obtained molded product is excellent in heat resistance and tensile creep resistance.
- the content of the fiber (C) is 10 parts by mass or more, preferably 20 parts by mass or more, more preferably 30 parts by mass. More than parts, more preferably 35 parts by mass or more; 70 parts by mass or less, preferably 60 parts by mass or less.
- the content of the fiber (C) is 10 to 70 parts by mass, the obtained molded product has excellent bending elastic modulus and bending strength.
- the content of the modified polyolefin resin (D) is 0.05 parts by mass or more, preferably 0.1 parts by mass, with respect to the total content of 100 parts by mass of the resin (A), the resin (B) and the fiber (C). More than parts; 0.95 parts by mass or less, preferably 0.7 parts by mass or less, more preferably 0.5 parts by mass or less.
- the content of the modified polyolefin resin (D) is at least the lower limit value and at least the upper limit value, for example, when it is 0.05 to 0.95 parts by mass, it is compared with the case where the content is outside this range. , High heat-resistant deformability under a high load of the molded body is maintained, and the tensile creep resistance of the molded body is improved.
- the content of the resin (B) is preferably 8 parts by mass or more, more preferably 20 parts by mass or more, still more preferably 33 parts by mass or more. , More preferably 45 parts by mass or more, particularly preferably 55 parts by mass or more; preferably 92 parts by mass or less, more preferably 80 parts by mass or less, still more preferably 75 parts by mass or less.
- the content of the resin (B) with respect to the total of the resin (A) and the resin (B) is not less than the lower limit value and not more than the upper limit value, for example, 8 to 92 parts by mass, the obtained molded product has heat resistance and resistance. Excellent tensile creep property.
- the total content of the resin (A), the resin (B), the fiber (C) and the modified polyolefin resin (D) in 100% by mass of the total composition (I) is preferably 70% by mass or more, more preferably 80% by mass. % Or more, more preferably 90% by mass or more.
- a / ⁇ B is in the range of 0.3 to 1.3
- the viscosity range of the composition in which only the resin components other than the fiber (C) of the composition (I) are melt-kneaded is 40 to 130 Pa ⁇ s. preferable.
- the impregnation property of the resin into the reinforcing fiber is excellent, that is, the proportion of the resin present in the peripheral portion of the reinforcing fiber is large.
- the mechanical properties of the composition (I) are excellent.
- the composition (I) can be produced by melt-kneading each of the above-mentioned components.
- the melt-kneading temperature is, for example, 5 to 100 ° C. higher than the temperature at which the contained component resin (eg, resin (A), resin (B), resin (D)) melts, and is preferably among the contained component resins.
- the temperature is 10 to 60 ° C. higher than the melting point of the resin having the highest melting point.
- the melt-kneading treatment time is, for example, 30 seconds or more and 15 minutes or less, preferably 1 to 10 minutes.
- the composition (I) may be a short fiber reinforced resin pellet or a long fiber reinforced resin pellet.
- each component described above can be well melt-kneaded and dispersed in an extruder or the like with a roll mill, a Banbury mixer, a kneader or the like. It may be dry-blended with a tumbler type blender, a henschel mixer, a ribbon mixer or the like, and melt-kneaded with a uniaxial extruder, a twin-screw extruder or the like to form a pellet-shaped molding material.
- the fiber (C) may be charged from either the top or the side of the extruder. Further, in this method, all or a part of each component other than the fiber (C) may be separately melt-kneaded and then melt-kneaded with the fiber (C).
- composition (I) is a long fiber reinforced resin pellet
- it can be produced by a known method such as a drawing method. After a part of each of the above-mentioned components is separately melt-kneaded, the remaining components may be added and melt-kneaded.
- glass fiber roving can be guided to an impregnated die, uniformly impregnated with a molten resin between filaments, and then pelletized by cutting to a required length.
- the composition (I) can be processed into a molded product by a molding method such as ordinary injection molding, extrusion molding, or press molding.
- injection molding for example, injection molding can be performed using the above-mentioned short fiber reinforced resin pellets or long fiber reinforced resin pellets.
- other resins for example, the polyolefin resin described in the item of ⁇ polyolefin resin (A)> may be further added.
- the short fiber reinforced resin pellets or the long fiber reinforced resin pellets are side-fed from the vent port of the injection molding machine, and other resins, for example, the polyolefin resin described in the item of ⁇ polyolefin resin (A)> are fed from the hopper. Then, it can be mixed and molded in an injection molding machine.
- the polyolefin resin (A), the resin (B), the fiber (C) and the modified polyolefin resin (D) are melt-kneaded in an injection molding machine without passing through the short fiber reinforced resin pellets and the long fiber reinforced resin pellets. Molding can also be performed. In that case, the fiber (C) may be fed from the hopper of the injection molding machine, or may be side-fed from the vent port or the like.
- the molded product of this embodiment contains the composition (I).
- the molded product of the present embodiment may be entirely formed from the composition (I), or may include a portion formed from the composition (I).
- the molded product is used in a wide range of applications, from household products such as daily necessities and recreational products to general industrial products and industrial products.
- household products such as daily necessities and recreational products
- industrial products for example, home appliance material parts, communication equipment parts, electrical parts, electronic parts, automobile parts, vehicle parts other than automobiles, ships, aircraft materials, mechanical mechanism parts, building material related parts, civil engineering parts, agricultural materials, electric tool parts, food Examples include containers, films, sheets and fibers.
- automobile parts As for automobile parts, it can be deployed in various parts such as powertrain parts due to improved heat resistance, mechanical parts due to improved tensile creep resistance, and outer panel parts due to improved bending characteristics, but other parts. It can also be applied to sites. Specific parts names include intake manifolds, oil pans, cylinder heads, cylinder head covers, engine covers, shrouds, mirror brackets, interior consoles, sun roofs, sun roof frames, front doors, back doors, sliding doors, front end modules, etc.
- Examples of home appliance material parts, communication equipment parts, electrical parts, and electronic parts include battery pack parts (covers, trays, module cases), printers, personal computers, word processors, keyboards, small information terminals (PDAs), headphone stereos, and portable devices.
- Office / OA equipment such as telephones, telephones, facsimiles, copying machines, electronic money registration machines (ECRs), calculators, electronic notebooks, electronic dictionaries, cards, holders, stationery, etc .; washing machines, refrigerators, vacuum cleaners, microwave ovens, lighting Home appliances such as appliances, game machines, irons, and sardines; AV equipment such as TVs, VTRs, video cameras, radio cassette recorders, tape recorders, mini discs, CD players, speakers, and liquid crystal displays; connectors, relays, condensers, switches, and printed boards.
- Coil bobbin semiconductor encapsulation material, electric wire, cable, transformer, deflection yoke, distribution board, clock.
- Examples of daily necessities include plywood, synthetic fiber boards, buckets, containers, bags, cases, goggles, skis, rackets, tents, bicycles, musical instruments, and other daily and sports goods.
- MH7020 Content of structure derived from maleic acid: 0.7% by mass -Modified SEBS: Maleic acid-modified hydrogenated styrene-based thermoplastic elastomer Asahi Kasei Corporation, tough tech product number "M1943” -Modified PE: Acrylic acid ester-glycidyl methacrylate-modified polyethylene Lotader, product number "AX8900”, content of structure derived from maleic acid: 24% by mass [Example 1] 50 parts of PP as the polyolefin resin (A), 10 parts of PA6-1 as the polyamide resin (B1), and 0.1 part of the modified PP as the modified polyolefin resin (D) are mixed in advance by dry blending and biaxially melt-kneaded.
- SEBS Maleic acid-modified hydrogenated styrene-based thermoplastic elastomer Asahi Kasei Corporation, tough tech product number "M1943” -Modified PE: Acrylic acid ester-glycidy
- a fiber-reinforced resin composition was prepared by heat-melting and kneading at a temperature of 250 ° C.
- the fiber-reinforced resin composition obtained above is injection-molded using an injection molding machine (manufactured by Toshiba Machinery Co., Ltd., "EC75XIII") under injection conditions of a set temperature of 250 ° C. and a mold temperature of 60 ° C. to reinforce the fibers.
- a strip test piece for evaluation test (length 80 mm ⁇ width 10 mm ⁇ thickness 4 mm) and a dumbbell type test piece for evaluation test (based on JIS K7139 (ISO 3176: 93)) made of a resin composition were prepared.
- Examples 2 to 19, Comparative Examples 1 to 8 A fiber-reinforced resin composition and each test piece were prepared under the same conditions as in Example 1 except that the compounding composition was changed as described in Tables 1 to 5. The numerical values shown for each component in Tables 1 to 5 are the blending amounts based on parts by mass. In Examples 16 to 19 and Comparative Example 8, a polyester resin (B2) is blended in place of the polyamide resin (B1).
- the glass fiber (a mixture of the resin (B1) and the modified polyolefin resin (D)) was supplied to the impregnated die, impregnated, cooled and solidified, and then cut into 9 mm pellet lengths with a strand cutter.
- the obtained pellet-shaped fiber-reinforced resin composition was injection-molded in the same manner as in Example 1, and a strip test piece for evaluation test (length 80 mm ⁇ width 10 mm ⁇ thickness 4 mm) made of the fiber-reinforced resin composition was formed.
- a dumbbell type test piece for evaluation test (based on JIS K7139 (ISO 3176: 93)) were prepared.
- Example 21 to 24 and Comparative Examples 9 to 10 A fiber-reinforced resin composition and each test piece were prepared under the same conditions as in Example 20 except that the compounding composition was changed as shown in Table 6.
- the numerical values shown for each component in Table 6 are the blending amounts based on parts by mass.
- the bending test was carried out in accordance with ISO 178 using a strip test piece for evaluation test, and the flexural modulus FM (MPa) and the bending strength FS (MPa) in the stress-strain curve were determined.
- the tensile creep strain was measured using the above-mentioned evaluation test dumbbell type test piece of JIS K7139 under the conditions of initial stress of 5.0 MPa, test temperatures of 80 ° C. and 120 ° C., and test time of 100 hours. However, for Examples 14 to 24 and Comparative Examples 5 to 10, the initial stress was changed to 20 MPa, and the test temperature was set to 80 ° C. in the same manner.
- the impregnation property to the glass fiber was evaluated as follows using the resin component excluding the fiber (C) used in each Example and Comparative Example. This evaluation was used as the evaluation of the impregnation property in the fiber-reinforced resin compositions obtained in each Example and Comparative Example. At the same time, the melt viscosity was evaluated by the following method.
- roving glass fibers (fiber diameter: 17 ⁇ m, TEX number 2400 g / 1000 m) were installed in installation spaces 1 and 2 having a width of 14 mm, a length of 250 mm, and a depth of 4 mm. Then, it was fixed to the frame with a spring by clipping it.
- the press temperature was set to 280 ° C.
- the pressure was increased to 5 MPa
- the temperature was preheated for 10 minutes
- the pressure was increased to 10 MPa
- the mixture was heated for 2 minutes.
- Only the central portion of the obtained resin-impregnated roving glass fiber was cut out and fired in an electric furnace (“FO300” manufactured by Yamato Co., Ltd.) at 500 ° C. for 1 hour, and the residual glass fiber mass was measured. From the mass of the glass fiber before and after firing, the glass fiber ratio (mass%) in the sample was calculated by the following formula.
- Glass fiber ratio (%) ⁇ mass of glass fiber only after firing ⁇ ⁇ ⁇ mass of glass fiber containing impregnated resin before firing ⁇ x 100 From the ratio of glass fibers in the sample, the impregnation property of the kneaded product containing only the resin component containing no fibers into the glass fibers was evaluated. Here, the impregnation property was evaluated according to the following criteria.
- Impregnation property evaluation criteria ⁇ : Glass fiber mass ratio (mass%) in the sample is less than 80% by mass ⁇ : Glass fiber mass ratio (mass%) in the sample is 80% by mass or more Resin with poor impregnation property Since the kneaded product does not have good permeability to the glass fiber, the glass fiber is melted and diffused in the mold without being impregnated with the resin even by pressing. Therefore, the mass ratio of glass fibers in the sample after firing is high.
- melt viscosity of the resin pellet of the composition obtained by melt-kneading only the resin component other than the fiber (C) of the composition (I).
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Abstract
Description
[1] ポリオレフィン樹脂(A)と、
ポリアミド樹脂(B1)およびポリエステル樹脂(B2)からなる群より選ばれる1種以上の樹脂(B)と、
繊維(C)と、
変性ポリオレフィン樹脂(D)と
を含有する繊維強化樹脂組成物であり、
前記ポリオレフィン樹脂(A)、前記樹脂(B)および前記繊維(C)の含有量の合計100質量部中、前記ポリオレフィン樹脂(A)の含有量が5~60質量部であり、前記樹脂(B)の含有量が5~60質量部であり、前記繊維(C)の含有量が10~70質量部であり、
前記ポリオレフィン樹脂(A)、前記樹脂(B)および前記繊維(C)の含有量の合計100質量部に対して、前記変性ポリオレフィン樹脂(D)の含有量が0.05~0.95質量部であり、
前記ポリオレフィン樹脂(A)の250℃における剪断速度120/secでの溶融粘度ηAと前記樹脂(B)の250℃における剪断速度120/secでの溶融粘度ηBとの比率ηA /ηBが0.3~1.3の範囲である、繊維強化樹脂組成物。
[2] 前記樹脂(B)が前記ポリアミド樹脂(B1)である、[1]に記載の繊維強化樹脂組成物。
[3] 前記ポリアミド樹脂(B1)がポリアミド6である、[1]または[2]に記載の繊維強化樹脂組成物。
[4] 前記ポリオレフィン樹脂(A)および前記樹脂(B)の含有量の合計100質量部中、前記樹脂(B)の含有量が8~92質量部である、[1]~[3]のいずれかに記載の繊維強化樹脂組成物。
[5] 前記ポリオレフィン樹脂(A)がポリプロピレンである、[1]~[4]のいずれかに記載の繊維強化樹脂組成物。
[6] 前記繊維(C)がガラス繊維および炭素繊維から選ばれる1種以上である、[1]~[5]のいずれかに記載の繊維強化樹脂組成物。
[7] [1]~[6]のいずれかに記載の繊維強化樹脂組成物を含む成形体。
[8] 自動車部品である、[7]に記載の成形体。
本明細書において「~」を用いて表される数値範囲は、「~」の前後に記載される数値を下限値および上限値として含む範囲を意味する。
本実施形態の繊維強化樹脂組成物(以下「組成物(I)」ともいう)は、
ポリオレフィン樹脂(A)と、
ポリアミド樹脂(B1)およびポリエステル樹脂(B2)からなる群より選ばれる1種以上の樹脂(B)と、
繊維(C)と、
変性ポリオレフィン樹脂(D)と
を含有する。
ポリオレフィン樹脂(A)(以下「樹脂(A)」ともいう)としては、例えば、α-オレフィン、環状オレフィン、非共役ジエン、芳香族オレフィン等のオレフィンの重合体であり、α-オレフィンを主成分とする重合体が好ましい。α-オレフィンを主成分とする重合体とは、重合体中のα-オレフィン由来の構成単位の含有量が、好ましくは50モル%以上、より好ましくは60モル%以上、さらに好ましくは70モル%以上であることを意味する。上記構成単位の含有量は、例えば13C-NMR法により測定することができる。
樹脂(B)は、ポリアミド樹脂(B1)およびポリエステル樹脂(B2)からなる群より選ばれる1種以上の樹脂であり、ポリアミド樹脂(B1)が好ましい。樹脂(B)は、組成物(I)を含む成形体の耐熱性、長期耐久性、機械物性を向上させる成分である。
ポリアミド樹脂(B1)としては、例えば、アミノ基およびカルボキシ基を有する化合物ならびにその脱水縮合物から選ばれる1種以上のアミノ酸系単量体の重合体、ジアミンとジカルボン酸との共重合体、上記アミノ酸系単量体とジアミンとジカルボン酸との共重合体が挙げられる。
≪ポリエステル樹脂(B2)≫
ポリエステル樹脂(B2)は、ポリカルボン酸およびその無水物から選ばれる1種以上と、ポリオールとの共重合体で、かつ末端を含む分子骨格中に親水基を有する樹脂であり、公知の方法により製造できる。親水基としては、例えば、ポリアルキレンオキサイド基、スルホン酸塩、カルボキシ基、これらの中和塩が挙げられる。
脂肪族ジカルボン酸および脂環式ジカルボン酸ならびにこれらの無水物としては、例えば、フマル酸、マレイン酸、イタコン酸、コハク酸、アジピン酸、アゼライン酸、セバシン酸、ダイマー酸、1,4-シクロヘキサンジカルボン酸、無水コハク酸、無水マレイン酸が挙げられる。
ポリオールとしては、例えば、ジオール、3官能以上のポリオールが挙げられる。ジオールとしては、例えば、エチレングリコール、ジエチレングリコール、ポリエチレングリコール、プロピレングリコール、ポリプロピレングリコール、ポリブチレングリコール、1,3-プロパンジオール、1,4-ブタンジオール、1,6-ヘキサンジオール、ネオペンチルグリコール、ポリテトラメチレングリコール、1,4-シクロヘキサンジオール、1,4-シクロヘキサンジメタノール、ビスフェノールA、ビスフェノールAのアルキレンオキサイド付加物が挙げられる。3官能以上のポリオールとしては、例えば、トリメチロールプロパン、グリセリン、ペンタエリスリトールが挙げられる。
<繊維(C)>
組成物(I)は、強化繊維である繊維(C)を含有する。
表面処理後の強化繊維は所定本数に集束され、巻き取った後、必要に応じて切断および/または粉砕し、チョップドストランド、ミルドファイバー、ヤーン、ロービング等に加工してもよい。
<変性ポリオレフィン樹脂(D)>
変性ポリオレフィン樹脂(D)は、ポリオレフィン樹脂(A)と樹脂(B)との相互作用性を向上させ(例えば樹脂(A)と樹脂(B)との相溶化剤として作用し)、組成物(I)を含む成形体の耐熱変形性および耐引張クリープ性を向上させる成分である。
成分(D2)として用いうる不飽和カルボン酸としては、例えば、アクリル酸、メタクリル酸、クロトン酸、ソルビン酸、アンゲリカ酸等の不飽和モノカルボン酸;マレイン酸、フマル酸、イタコン酸、シトラコン酸、メサコン酸、テトラヒドロフタル酸、ノルボルネンジカルボン酸、ビシクロ[2.2.1]ヘプト-2-エン-5,6-ジカルボン酸等の不飽和ジカルボン酸が挙げられる。
無水マレイン酸、無水イタコン酸、無水シトラコン酸、テトラヒドロ無水フタル酸、ビシクロ[2.2.1]ヘプト-2-エン-5,6-ジカルボン酸無水物などの不飽和ジカルボン酸無水物;
塩化マレニルなどの不飽和ジカルボン酸無水物;
アクリル酸メチル、アクリル酸エチル、アクリル酸プロピル、アクリル酸ブチルなどのアクリル酸エステル、メタクリル酸メチル、メタクリル酸グリシジルなどのメタクリル酸エステル、マレイン酸モノメチル、マレイン酸モノエチル、マレイン酸ジメチル、マレイン酸ジエチルなどのマレイン酸エステル、フマル酸ジエチル、イタコン酸ジメチル、シトラコン酸ジエチル、テトラヒドロフタル酸ジメチル、ビシクロ[2.2.1]ヘプト-2-エン-5,6-ジカルボン酸ジメチル;
アクリルアミド、マレイン酸アミド、マレイミド、アクリル酸ナトリウム、メタクリル酸ナトリウム
が挙げられる。
上記変性の方法としては、従来公知の方法を用いることができ、例えば、ポリオレフィン樹脂(D1)に成分(D2)をグラフトさせる方法が挙げられる。具体的には、グラフト主鎖となるポリオレフィン樹脂(D1)に、ラジカル重合開始剤の存在下、成分(D2)をグラフトさせる。
<他の成分>
組成物(I)は、本発明の目的を阻害しない範囲で、上記以外の他の成分を含有してもよい。他の成分としては、例えば、ポリオレフィン樹脂(A)、樹脂(B)および変性ポリオレフィン樹脂(D)以外の他の熱可塑性樹脂、難燃剤、難燃助剤、充填剤、着色剤、抗菌剤、帯電防止剤が挙げられる。これらは1種または2種以上用いることができる。
充填剤としては、例えば、ガラス成分(例:ガラスビーズ、ガラスフレーク)、シリカ、黒鉛、珪酸化合物(例:珪酸カルシウム、珪酸アルミニウム、カオリン、タルク、クレー)、金属酸化物(例:酸化鉄、酸化チタン、酸化亜鉛、酸化アンチモン、アルミナ)、カルシウム、マグネシウム、亜鉛等の金属の炭酸塩および硫酸塩が挙げられる。
<各成分の含有量>
組成物(I)を用いることで、高荷重下における高い耐熱変形性を保ちつつ、耐引張クリープ性、曲げ弾性率および曲げ強度に優れる成形体を製造することができる。
樹脂(A)、樹脂(B)および繊維(C)の含有量の合計100質量部中、樹脂(A)の含有量は、5質量部以上、好ましくは10質量部以上、より好ましくは15質量部以上であり;60質量部以下、好ましくは50質量部以下、より好ましくは40質量部以下、さらに好ましくは33質量部以下、とりわけ好ましくは27質量部以下である。樹脂(A)の含有量が5~60質量部であると、コスト、比重に優れる。
組成物(I)において、樹脂(A)の250℃における剪断速度120/secでの溶融粘度ηAと樹脂(B)の250℃における剪断速度120/secでの溶融粘度ηBとの比率ηA /ηBが0.3~1.3の範囲にあり、組成物(I)の繊維(C)以外の樹脂成分のみ溶融混練した組成物の粘度範囲は40~130Pa・sであることが好ましい。上記範囲にあると、強化繊維への樹脂の含浸性に優れ、すなわち、強化繊維周辺部に樹脂が存在する割合が大きい。これにより、組成物(I)の機械物性が優れる。
組成物(I)は、上述した各成分を溶融混練して製造することができる。溶融混練温度は、含有成分の樹脂(例:樹脂(A)、樹脂(B)、樹脂(D))が溶融する温度より例えば5~100℃高い温度であり、好ましくは含有成分の樹脂のうち最も高い融点を有する樹脂の当該融点より10~60℃高い温度である。また、溶融混練処理時間は、例えば30秒以上15分以下、好ましくは1~10分である。
組成物(I)が短繊維強化樹脂ペレットである場合は、押出機等に上記した各成分をロールミル、バンバリーミキサー、ニーダー等でよく溶融混練分散して製造できる。タンブラー式ブレンダー、ヘンシェルミキサー、リボンミキサー等でドライブレンドし、一軸押出機、二軸押出機等で溶融混練してペレット状の成形材料としてもよい。この方法では、繊維(C)は、押出機のトップ又はサイドの何れから投入してもよい。また、この方法では、繊維(C)以外の各成分の全部又は一部を別途溶融混練した後、繊維(C)と溶融混練してもよい。
組成物(I)は、通常の射出成形、押出成形、プレス成形などの成形方法によって、成形体に加工することが可能である。射出成形の場合、例えば、上述の短繊維強化樹脂ペレットまたは長繊維強化樹脂ペレットを用いて射出成形を行うことができる。その場合、短繊維強化樹脂ペレットまたは長繊維強化樹脂ペレットを射出成形機のホッパーからフィードする際に、その他の樹脂、例えば<ポリオレフィン樹脂(A)>の項目に記載したポリオレフィン樹脂をさらに加えることもできる。また、短繊維強化樹脂ペレットまたは長繊維強化樹脂ペレットを射出成形機のベント口等からサイドフィードし、ホッパーからはその他の樹脂、例えば<ポリオレフィン樹脂(A)>の項目に記載したポリオレフィン樹脂をフィードして射出成形機内で混合し、成形することもできる。
実施例および比較例において使用した原料およびその物性を以下に示す。
・PP1:ポリプロピレン
プライムポリマー社製 J13B、MFR(JIS K7210準拠、230℃、2.16kg荷重):220g/10min、溶融粘度ηA(250℃、120/sec):35.8Pa・s
・PP2:ポリプロピレン
プライムポリマー社製 S119、MFR(JIS K7210準拠、230℃、2.16kg荷重):60g/10min、溶融粘度ηA(250℃、120/sec):89.4Pa・s
・PP3:ポリプロピレン
プライムポリマー社製 J137G、MFR(JIS K7210準拠、230℃、2.16kg荷重):30g/10min、溶融粘度ηA(250℃、120/sec):152Pa・s
ポリアミド樹脂(B1)
・PA6-1:ポリアミド6
東レ製 CM1007、MFR(JIS K7210準拠、230℃、2.16kg荷重):67g/10min、溶融粘度ηB(250℃、120/sec):112Pa・s
・PA6-2:ポリアミド6
宇部興産製 1013B、MFR(JIS K7210準拠、230℃、2.16kg荷重):30g/10min、溶融粘度ηB(250℃、120/sec):192Pa・s
ポリエステル樹脂(B2)
・PBT:ポリブチレンテレフタレート
ポリプラスチック製 300FP、MFR(JIS K7210準拠、230℃、2.16kg荷重):3g/10min、溶融粘度ηB(250℃、120/sec):115Pa・s
繊維(C)
・GF1:アクリル系集束剤により表面処理されたガラス繊維チョップドストランド(長さ3mm、フィラメント直径11μm)
・GF2:酸変性ポリプロピレン系集束剤により表面処理されたガラス繊維チョップドストランド(長さ4mm、フィラメント直径13μm)
・GF3:ウレタン系集束剤により表面処理されたガラス繊維チョップドストランド(長さ3mm、フィラメント直径11μm)
・CF:ウレタン系集束剤により表面処理された炭素繊維チョップドストランド(長さ4mm、フィラメント直径7μm)
・LGF1:アクリル系集束剤により表面処理されたガラス繊維ロービング(フィラメント直径17μm, TEX数2400g/1000m)
・LGF2:酸共重合物系集束剤により表面処理されたガラス繊維ロービング(フィラメント直径17μm, TEX数2400g/1000m)
変性ポリオレフィン樹脂(D)
・変性PP:マレイン酸変性ポリプロピレン
三井化学社製、アドマー、品番「AT2606」、マレイン酸由来の構造の含有量:0.6質量%
・変性EBR:マレイン酸変性α-オレフィンコポリマー(マレイン酸変性エチレン-ブテン共重合体)
三井化学社製、タフマー、品番「MH7020」、マレイン酸由来の構造の含有量:0.7質量%
・変性SEBS:マレイン酸変性水添スチレン系熱可塑性エラストマー
旭化成社製、タフテック品番「M1943」
・変性PE:アクリル酸エステル-グリシジルメタクリレート変性ポリエチレン
Lotader、品番「AX8900」、マレイン酸由来の構造の含有量:24質量%
[実施例1]
ポリオレフィン樹脂(A)としてPP1 50部と、ポリアミド樹脂(B1)としてPA6-1 10部と、変性ポリオレフィン樹脂(D)として変性PP 0.1部とをドライブレンドにより予め混合し、二軸溶融混練押出機(テクノベル社製「KZW15TW-30MG-NH」、スクリュー径15mm、L/D=30)のホッパーに供給した。一方で、繊維(C)としてGF1 40部を、二軸溶融混練押出機に供給した。温度250℃で加熱溶融混練を行い、繊維強化樹脂組成物を調製した。
配合組成を表1~表5に記載したとおりに変更したこと以外は実施例1と同様の条件にて、繊維強化樹脂組成物および各試験片を作製した。表1~表5において各成分に対して示された数値は質量部基準の配合量である。なお、実施例16~19および比較例8では、ポリアミド樹脂(B1)に代えて、ポリエステル樹脂(B2)を配合している。
[実施例20]
ポリオレフィン(A)としてPP1と、ポリアミド樹脂(B1)としてPA6-1と、変性ポリオレフィン樹脂(D)としての変性PPとを表6に示した質量部に配合して、295℃に温度調節された二軸溶融混練押出機のホッパーに投入した。また、繊維(C)として表1に示したガラス繊維ロービング(LGF2)を表6記載の質量部になる速度で拡張開繊して、押出機からの樹脂成分(すなわち、ポリオレフィン(A)とポリアミド樹脂(B1)と変性ポリオレフィン樹脂(D)との混合物)と上記ガラス繊維を含浸ダイに供給し、含浸させた後に、冷却固化の後、ストランドカッターにて9mmペレット長にカットした。得られたペレット状の繊維強化樹脂組成物につき、実施例1と同様に射出成形を行い、当該繊維強化樹脂組成物からなる、評価試験用短冊試験片(長さ80mm×幅10mm×厚さ4mm)と評価試験用ダンベル型試験片(JIS K7139(ISO 3176:93)に準拠)とを作製した。
[実施例21~24、および、比較例9~10]
配合組成を表6に記載したとおりに変更したこと以外は実施例20と同様の条件にて、繊維強化樹脂組成物および各試験片をそれぞれ作製した。表6において各成分に対して示された数値は質量部基準の配合量である。
<熱変形温度の評価>
評価試験用短冊試験片を用いて、ISO 751-1(1.8MPa荷重)に準拠して、東洋精機製作所社製「自動HDT試験機」により熱変形温度の測定を行った。
曲げ試験は、評価試験用短冊試験片を用いてISO 178に準拠して実施し、応力-歪み曲線における曲げ弾性率FM(MPa)と曲げ強度FS(MPa)を求めた。
引張クリープ歪みの測定は、試験片としてJIS K7139の上記評価試験用ダンベル型試験片を用い、初期応力5.0MPa、試験温度80℃及び120℃、試験時間100時間の条件で実施した。ただし、実施例14~24および比較例5~10については、初期応力を20MPaに変更するとともに、試験温度を80℃として同様に実施した。
含浸性の評価は、図1に示す金型を使用して、横14mm、縦250mm、深さ4mmの設置スペース1および2にロービングガラス繊維(繊維径:17μm、TEX数2400g/1000m)を設置し、バネ付きフレームにクリップで止めて固定した。
サンプル中のガラス繊維比率から、繊維を含まない樹脂成分のみの混練物のガラス繊維に対する含浸性を評価した。ここでは以下の基準で含浸性を評価した。
〇:サンプル中のガラス繊維質量比率(質量%)が80質量%より小さい
×:サンプル中のガラス繊維質量比率(質量%)が80質量%以上である
含浸性がすぐれない樹脂混練物はガラス繊維への浸透性が良好でないため、プレスによってもガラス繊維に樹脂が含浸しないまま溶融して金型内に拡散する。このため、焼成後のサンプル中のガラス繊維質量比率は高くなる。
実施例20~24、および、比較例9~10で得られたペレットを100個任意に採取し、毛羽立ちの状況を評価した。ペレットを所定の時間(5秒)ミリング試験を行い、粉砕して毛羽の発生状況を観察した。ペレット中ロ-ビングGF中に樹脂が付着していない部分があると、ミリング試験後毛羽立ち、粉砕後のペレットが盛り上がる。盛り上がりが生じるものを×、わずかにもりあがるものを△、ほとんど盛り上がりが確認できないものを〇とした。
・溶融粘度の比率ηA /ηB
ポリオレフィン樹脂(A)および樹脂(B)のそれぞれにつき、JIS K7199:1999(ISO 11443:1995)に準拠して250℃における剪断速度120/secでの溶融粘度ηAおよびηBをそれぞれ測定し、ηAとηBとの比を算出した。
含浸性の評価で用いた、組成物(I)の繊維(C)以外の樹脂成分のみ溶融混練した組成物の樹脂ペレットを用いてJIS K7199:1999(ISO 11443:1995)に準拠して実施し、250℃における剪断速度120/secでの溶融粘度を測定した。
Claims (8)
- ポリオレフィン樹脂(A)と、
ポリアミド樹脂(B1)およびポリエステル樹脂(B2)からなる群より選ばれる1種以上の樹脂(B)と、
繊維(C)と、
変性ポリオレフィン樹脂(D)と
を含有する繊維強化樹脂組成物であり、
前記ポリオレフィン樹脂(A)、前記樹脂(B)および前記繊維(C)の含有量の合計100質量部中、前記ポリオレフィン樹脂(A)の含有量が5~60質量部であり、前記樹脂(B)の含有量が5~60質量部であり、前記繊維(C)の含有量が10~70質量部であり、
前記ポリオレフィン樹脂(A)、前記樹脂(B)および前記繊維(C)の含有量の合計100質量部に対して、前記変性ポリオレフィン樹脂(D)の含有量が0.05~0.95質量部であり、
前記ポリオレフィン樹脂(A)の250℃における剪断速度120/secでの溶融粘度ηAと前記樹脂(B)の250℃における剪断速度120/secでの溶融粘度ηBとの比率ηA /ηBが0.3~1.3の範囲である、繊維強化樹脂組成物。 - 前記樹脂(B)が前記ポリアミド樹脂(B1)である、請求項1に記載の繊維強化樹脂組成物。
- 前記ポリアミド樹脂(B1)がポリアミド6である、請求項1または2に記載の繊維強化樹脂組成物。
- 前記ポリオレフィン樹脂(A)および前記樹脂(B)の含有量の合計100質量部中、前記樹脂(B)の含有量が8~92質量部である、請求項1~3のいずれか1項に記載の繊維強化樹脂組成物。
- 前記ポリオレフィン樹脂(A)がポリプロピレンである、請求項1~4のいずれか1項に記載の繊維強化樹脂組成物。
- 前記繊維(C)がガラス繊維および炭素繊維から選ばれる1種以上である、請求項1~5のいずれか1項に記載の繊維強化樹脂組成物。
- 請求項1~6のいずれか1項に記載の繊維強化樹脂組成物を含む成形体。
- 自動車部品である、請求項7に記載の成形体。
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CN111971491A (zh) * | 2018-04-23 | 2020-11-20 | 旭化成株式会社 | 含有纤维素的齿轮 |
US12007001B2 (en) | 2018-04-23 | 2024-06-11 | Asahi Kasei Kabushiki Kaisha | Cellulose-containing gear |
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