WO2006043620A1 - ガラス繊維処理用変性ポリオレフィン系樹脂、表面処理ガラス繊維及び繊維強化ポリオレフィン系樹脂 - Google Patents
ガラス繊維処理用変性ポリオレフィン系樹脂、表面処理ガラス繊維及び繊維強化ポリオレフィン系樹脂 Download PDFInfo
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- WO2006043620A1 WO2006043620A1 PCT/JP2005/019285 JP2005019285W WO2006043620A1 WO 2006043620 A1 WO2006043620 A1 WO 2006043620A1 JP 2005019285 W JP2005019285 W JP 2005019285W WO 2006043620 A1 WO2006043620 A1 WO 2006043620A1
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- resin
- fiber
- mass
- polyolefin resin
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- 238000005728 strengthening Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
- B29B9/14—Making granules characterised by structure or composition fibre-reinforced
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/06—Treatment of polymer solutions
- C08F6/10—Removal of volatile materials, e.g. solvents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/26—Treatment of polymers prepared in bulk also solid polymers or polymer melts
- C08F6/28—Purification
-
- 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
-
- 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
- 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
-
- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- 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
-
- 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
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
- Y10T428/249942—Fibers are aligned substantially parallel
- Y10T428/249944—Fiber is precoated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
- Y10T428/249942—Fibers are aligned substantially parallel
- Y10T428/249946—Glass fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the present invention relates to a modified polyolefin resin for glass fiber treatment, a surface-treated glass fiber, and a fiber-reinforced polyolefin resin. More specifically, a modified polyolefin resin for glass fiber treatment (also referred to as a film-forming agent, a film forming agent, a sizing agent, etc.), a surface-treated glass fiber, and a glass fiber treatment that gives a molded article with dramatically improved vibration fatigue strength.
- the present invention relates to a fiber reinforced polyolefin resin.
- Patent Document 1 Japanese Patent Laid-Open No. 3-181528
- Patent Document 2 Japanese Patent Laid-Open No. 2003-253563
- Patent Document 3 Japanese Patent Laid-Open No. 7-309979
- Patent Document 4 JP 2004-2837 A
- Patent Document 5 Japanese Unexamined Patent Publication No. 2003-321555
- the present invention has been made in view of the above-mentioned problems, and a modified polypropylene-based resin for glass fiber treatment, surface-treated glass fiber, and fiber reinforced that give a molded article having greatly improved vibration fatigue strength.
- An object is to provide a polypropylene-based resin.
- the present inventors have studied in detail the composition of a glass treatment and a composition centered on acid-modified polyolefin, and used acid-modified polyolefin (maleic acid-modified polypropylene) used as a sizing agent. ) Has been found to be able to dramatically improve vibration fatigue strength by reducing the low molecular weight polar component (boiling methyl ethyl ketone soluble component).
- the low molecular weight component (boiling methyl ethyl ketone soluble component) has a small molecular weight, so the mass ratio is small, but because of the large number of molecules, it binds to many functional groups on the glass surface, leading to vibration fatigue strength. It is thought that the impact of will increase.
- the surface treatment of the glass fiber is performed prior to the production of the composition.
- a low molecular weight polar component (boiling methyl ethyl ketone soluble component) capable of binding to the silane coupling agent is present in the sizing agent, this low molecular polar component is present in the silane cup prior to the acid-modified polypropylene.
- the low molecular weight polar component (boiling methyl ethyl ketone soluble component) is present in the sizing agent used for the surface treatment of the glass fiber because it binds with the ring agent, the low molecular polar component ( The adverse effect is considered to be greater than the case where boiling methyl ethyl ketone solubles are present.
- the static strength tensile strength
- the vibration fatigue strength it is considered that the destruction of the resin is likely to occur, and the difference in interface strength is difficult to occur.
- the low molecular weight and low molecular weight polar component ((boiling boiling memethylic leucetyl lukeketonton soluble soluble component)) I'm afraid that I can't be shy enough to be completely perfect.
- the constituent components there are organic peracid oxide residue residues and anti-reaction products, or very low molecular weight molecules.
- reaction reaction by-products such as acid-modified denaturing poplarioolerefhinin ((,, wa wa yururu ooririgo sesame)), acid acid ( Raw materials such as (macaraleinic acid and kacarlubobonic acid compounds represented by anhydrous anhydrous malareinic acid)) and organic organic peracid oxides, etc.
- Additive additives such as acid oxidation-prevention preventing agents and gold fatty acid fatty acid metal salt salts are conceivable. .
- the as-aspect ratio ratio of the Gagalasu fiber fibers, including the surface-treated surface treated Gagarras fiber fibers as described in [[33]] above (( Average fiber average fiber length ZZ average fiber average fiber diameter)) is 5500 to 66000000 fiber-reinforced fiber-reinforced oleoresin fiber ;
- Fatty acid fat contains 00 .. 22 to 5500% by mass% acid-acid-modifying poplarioolerefinein-based fat and oil.
- thermo-thermoplastic plastic resin is a poplarioolerefinin-based resin, and is described in the above [[99]].
- the fiber using the treated glass fiber treated with the reduced low molecular polar component (boiling methyl ethyl ketone soluble component) of the acid-modified polyolefin used for the sizing agent is reduced.
- the vibration fatigue strength of molded products made of reinforced polyolefin resin is dramatically improved. Therefore, various molded products such as automobile parts manufactured from the fiber-reinforced polyolefin resin of the present invention can maintain high reliability over a long period of time.
- FIG. 1 is a schematic view of an apparatus for producing a long fiber reinforced polyolefin-based resin pellet used in Production Example 3.
- FIG. 2 is a view showing the shape of a test piece for measuring vibration fatigue strength in Examples and Comparative Examples.
- processing resin t of the present invention satisfies the following (1) to (3).
- Boiling methyl ethyl ketone (MEK) extraction amount is 8 mass% or less
- Acid addition amount measured by Fourier transform infrared spectroscopy is in the range of 0.1-12% by mass.
- the vibration fatigue strength is drastically increased. Improved molded products can be manufactured.
- the polyolefin resin before modification used in the processing resin of the present invention is more preferably a polypropylene resin, particularly a propylene homopolymer, preferably a propylene homopolymer or an ethylene / propylene random copolymer.
- the intrinsic viscosity (7?) In 135 ° C decalin is usually from 0.5 to 40, preferably from 1 to 30, more preferably from 2 to 20, still more preferably from 3 to 15, particularly preferably 4 ⁇ 10. If it is less than 0.5, the molecular weight may be too low during modification, and if it is more than 40, it is difficult to produce industrially.
- the molecular weight distribution (MwZMn) measured by GPC is usually 2 to 10, preferably 2.1 to 6, more preferably 2.2 to 5, further preferably 2.3 to 4, particularly preferably 2. 4-3. Polypropylene resin having a molecular weight distribution smaller than 2 is difficult to produce, and if it exceeds 10, low molecular polar components may be generated after modification, which may reduce vibration fatigue strength.
- the stereoregularity (mmmm fraction) of the polyolefin resin before modification is usually 90% or more, preferably 93% or more, more preferably 96% or more, and further preferably 98% or more. If it is less than 90%, vibration fatigue strength may be insufficient.
- polystyrene resin before modification, but it is preferable that a part or all of it is in a powdered or granulated state because the reaction efficiency is increased and the low-molecular polar component is reduced.
- polypropylene can be used as the polypropylene used in the present invention.
- polypropylene whose fluidity is adjusted with an organic peroxide or a mixture of plural ones can be used.
- these can be used as a component of the later mentioned resin composition or as a diluted blend resin.
- Examples of the acid used for acid-modifying the polyolefin resin include those having a carboxyl group such as a carboxylic acid or a derivative thereof or a derivative thereof (anhydride).
- unsaturated carboxylic acids or their derivatives are preferred because unsaturated carboxylic acids are easier to add to polyolefin-based resins than saturated carboxylic acids!
- Unsaturated carboxylic acids or their derivatives include acrylic acid, methacrylic acid, maleic Examples include acid, nadic acid, fumaric acid, itaconic acid, maleic anhydride, nadic anhydride, itaconic anhydride and the like.
- unsaturated carboxylic acids or derivatives thereof those having a melting point of 30 to 280 ° C are more preferred, and those having a melting point of 50 to 210 ° C are particularly preferred.
- maleic acid is the most preferred maleic anhydride!
- the ratio of the acid used for modification relative to the polyolefin resin before modification is usually within the range of 0.1 to 30 parts by mass, preferably 0.2 to 6 parts by mass, more preferably 0. It is in the range of 3 to 4 parts by mass, more preferably 0.4 to 2 parts by mass, particularly preferably 0.5 to 1 part by mass, and most preferably 0.6 to 0.9 parts by mass. If the amount of acid is less than 0.1 parts by mass, the amount added will be insufficient, and if it exceeds 30 parts by mass, the generation of by-products and unreacted substances will increase, which may reduce performance.
- the acid-modified polyolefin-based resin is essential to have the following properties (a) to (c), and preferably has the following properties (d) or additives.
- MEK Boiling methyl etone ketone
- the removal method for reducing the boiling MEK soluble content (low molecular polar component) to 8% by mass or less is not particularly limited.
- the following method can be used.
- the timing of deaeration is as follows: (i) At the time of modification (when using an extruder or the like, vent decompression is performed), (ii) After modification (after obtaining acid-modified polyolefin resin, reduced pressure heating, vacuum heating, Hot air drying etc.). From the viewpoint of quality stability, it is preferable to deaerate after the modification of (ii).
- the temperature is preferably 50 to 150 ° C, more preferably 60 to 145 ° C, and particularly preferably 70 to 140 ° C. If the temperature is lower than 50 ° C, removal takes time, and if the temperature is higher than 150 ° C, there is a risk that the resin will stick.
- the ratio of the acid used for modification relative to the polyolefin resin before modification is preferably 6 parts by mass or less, more preferably 4 parts by mass or less, and even more preferably 2 parts by mass or less. 1 part by mass or less is particularly preferred 0.9 part by mass or less is most preferred.
- reaction initiator used for the addition reaction an organic peroxide is usually used.
- one-minute half-life temperatures of 80-260 ° C are preferred 90-2-20 ° C are more preferred 100-200 ° C are more preferred 110 ⁇ 180 ° C Is particularly preferred.
- a combination of organic peracids having a half-life temperature of 1 minute in the above range may be used. If the half-life temperature for one minute is lower than 80 ° C, it decomposes rapidly, so the amount of organic peroxide must be increased, which may increase the boiling MEK solubles. Yes, if it exceeds 260 ° C, unreacted organic peroxide may remain.
- the amount of the organic peroxide added to the polyolefin resin before modification (100 parts by mass) is usually 0.01 to 20 parts by mass, preferably 0.03 to 8 parts by mass, more preferably 0.06. -4 parts by mass, more preferably 0.1-3 parts by mass, particularly preferably 0.12-: L 5 parts by mass, most preferably 0.15-0.8 parts by mass. If the amount is less than 01 parts, there is a risk that the adhesion will be insufficient. If the amount is more than 20 parts, there is a possibility that the amount of residual peroxide or low molecular polar components will increase.
- the molecular weight of the organic peroxide is usually 90 to 600, preferably 150 to 500, more preferably 170 to 450, and particularly preferably 180 to 400. Those outside the above range are difficult to handle.
- the activation energy of the organic peroxide is usually in the range of 100 to 200 kjZmol, preferably 110 to 180 kj / mol, more preferably 120 to 170 kjZmol, and particularly preferably 130 to 160 kjZ mol. If it is less than lOOkjZmol, the reactivity decreases, and if it exceeds 200 kjZmol, it is difficult to produce industrially.
- organic peroxides include dialkyl peroxides, ketone peroxides, disilver oxides, hydrated peroxides, peroxyketals, alkyl peresters, percapolates, etc. Dialkyl peroxides, alkyl peresters, percaponates, and peroxyketals are preferred because they produce less MEK solubles.
- the reaction temperature (solution temperature or cylinder temperature) is preferably in the range of 100 to 230 ° C. 120 to 210 ° C is more preferred. 130 to 200 ° C is more preferred. 135 to 185 ° C is more preferred. Particularly preferred is 155 to 175 ° C. If the reaction temperature is lower than 100 ° C, the addition reaction may not occur sufficiently. If it is higher than 230 ° C, the decomposition reaction may proceed too quickly.
- the reaction time is usually 0.5 to 300 minutes, preferably 1 to 180 minutes, more preferably 1.5 to 30 minutes, still more preferably 2 to 15 minutes, particularly preferably 2.5 to: L0 minutes, most Preferably it is 3-6 minutes.
- the reaction time can be extended by increasing the LZD of the extruder or increasing the number of kneading times in addition to the extrusion conditions (lowering the discharge rate, etc.). If the reaction time is less than 0.5 minutes, a large amount of unreacted products and by-products may be generated, and the physical properties may be deteriorated. If it is longer than 300 minutes, the productivity is lowered and it is difficult to put it to practical use industrially.
- the number average molecular weight (Mn) force is less than S 6,000, the length of the polyolefin chain of the acid-modified polyolefin resin is insufficient and the strength between the acid-modified polyolefin resin and the unmodified polyolefin resin is not good. May be sufficient. Therefore, even if a glass fiber is surface-treated using this to produce a reinforced polypropylene-based resin, the vibration fatigue strength of the molded product may be insufficient. On the other hand, if it is larger than 48,000, it may not be evenly dispersed with the silane coupling agent, vibration fatigue strength may be reduced, it may become difficult to form emulsion, and it may not be used for glass fiber treatment.
- Acid addition amount (MEK insoluble content) measured by Fourier transform infrared spectroscopy (FT-IR) is in the range of 0.1 to 12% by mass, preferably 0.3 to 10, more preferably Is in the range of 0.4 to 8, more preferably 0.5 to 6, particularly preferably 0.75 to 3.8, and most preferably 9.5 to 2.9. If the amount of acid addition is less than 0.1% by mass, the acid-modified polyolefin-based resin may not be easily bonded to the glass fiber, and it may be difficult to cause emulsion. At 12 mass% or more, the number of functional groups per molecule becomes too large, and this is used to surface-treat and strengthen glass fibers. Even if a polypropylene-based resin is prepared, the vibration fatigue strength of the molded product may be insufficient.
- FT-IR Fourier transform infrared spectroscopy
- the acid addition amount was measured using dodecyl succinic anhydride and a polypropylene powder for adjusting the concentration (trade name: H 700; manufactured by Idemitsu Petrochemical Co., Ltd.), and the relational expression between the peak area and the amount of maleic acid. Calculate to obtain a calibration curve.
- heat treatment was performed at 230 ° C for 2 minutes, followed by pressurization for 4 minutes (5MPa) and pressurization for 3 minutes (5MPa) with a cooling press. 0.1. Make a film of about 1mm.
- the glass fiber processing resin of the present invention is preferably used in the form of an aqueous solution, an emulsion or an aqueous dispersion as a whole.
- a lubricant such as wax or surfactant or an antistatic agent may be contained, or another resin such as urethane resin may be used in combination.
- the molecular weight distribution (Mw / Mn) measured by gel permeation chromatography (GPC) is usually in the range of 2 to 10, preferably 2 to 6, more preferably 2.2 to 5 Particularly preferably, it is in the range of 2.4 to 4.5, most preferably 2.5 to 4. If the molecular weight distribution (MwZMn) is less than 2, moldability may be deteriorated, and if it is greater than 10, low molecular weight components having polar groups increase and vibration fatigue strength may be insufficient.
- a component having a molecular weight of 10,000 or less measured by gel permeation chromatography is usually 20% or less, preferably 15% or less, more preferably 12% or less, and even more preferably. It is 10% or less, particularly preferably 8% or less. If the amount of the component having a molecular weight of 10,000 or less is more than 20%, the low molecular weight component having a polar group increases and vibration fatigue strength may be insufficient.
- GPC gel permeation chromatography
- a component having a molecular weight of 5,000 or less measured by gel permeation chromatography (GPC) is usually 10% or less, preferably 6% or less, more preferably 4% or less, and particularly preferably. 3% or less. If the amount of the component having a molecular weight of 5,000 or less is more than 10%, the low molecular weight component having a polar group increases, and the vibration fatigue strength may be insufficient.
- FT—IR Fourier transform infrared spectroscopy
- Mn number average molecular weight measured by GPC.
- “Radix” force usually 1. 0 to 10 in the range of Z molecules, preferably 1. 2 to 7, more preferably 1. 4 to 5, more preferably 1. 6 to 4, particularly preferably 1. 8 to 3. Is within the range. If the “average number of functional groups per molecule” is 1.0 or less, the emulsion may become difficult, and if it is 10 or more, multiple bonding points may be generated and the strength may be lowered.
- Mn Number average molecular weight of functional group-containing polyolefin resin
- (j) Gel amount (amount that does not pass through a 5 ⁇ millipore filter by melt pressure permeation method) force 2% by mass or less, preferably 1% by mass or less, more preferably 0.5% by mass or less, Especially preferred 0.2 quality % Or less. If the amount of gel is more than 2%, it will cause a buzz-like defect (unmelted material in the resin, resulting in a small protrusion on the surface of the molded product and worsening the appearance), deteriorating the appearance, and emulsifying There is a risk.
- Each of the contents of toluene, xylene, formaldehyde, acetonitrile, etc. contained as volatile organic compounds is usually preferably lOOOOppm or less, preferably 700ppm or less, more preferably 300ppm or less. The following is even more preferred: 30 ppm or less is particularly preferred. If the content of volatile organic compounds is 300 ppm or more, volatile organic compounds may be generated from the molded product.
- Yellowness (YI: measured according to JIS K7105-1981) is usually in the range of 0 to 80, preferably 0 to 50, more preferably 0 to 30, particularly preferably 0 to 20. Most preferably, it is in the range of 0-15. If the yellowness is 80 or more, the molded product may turn yellow and the appearance may deteriorate.
- Low molecular weight component (xylene melted, slurried and washed with acetone, and the washing liquid concentrated and dried to measure the weight) is usually 8% by mass or less, preferably 3% by mass or less The amount is preferably 1% by mass or less, more preferably 0.5% by mass or less, particularly preferably 0.3% by mass or less, and most preferably 0.1% by mass or less. If the content of the low molecular weight component is more than 8%, the impact strength may decrease due to the low molecular weight, or the low molecular weight component having a polar group may increase, resulting in insufficient vibration fatigue strength.
- Volatile matter (comparing the weight before and after overdrying) is usually 2.0% by mass or less, preferably 1.5% by mass or less, more preferably 1.0% by mass or less, and further preferably 0 5% by mass or less, particularly preferably 0.3% by mass or less, and most preferably 0.2% by mass or less. If the volatile content is more than 2.0%, an odor is generated and the merchantability may be reduced. In addition, vibration fatigue strength and tensile strength may be reduced.
- the crystallization temperature Tc (C) measured with a display scanning calorimeter (DSC) is usually in the range of 80 to 130 ° C, preferably 90 to 125 ° C, more preferably 100. ⁇ 122 ° C. More preferably within the range of 105 to 120 ° C., particularly preferably within the range of 110 to 118 ° C. If the crystallization temperature Tc is lower than 80 ° C or higher than 130 ° C, the physical properties (strength) of the molded product may not be sufficient.
- Intrinsic viscosity (measured in 135 ° C decalin) is usually in the range of 0.2 to 1.8, preferably 0.25 to 1.00, more preferably ⁇ to 0.3 to 0 9. Further, this is preferably in the range of 0.3 to 0.7, more preferably in the range of 0.3 to 0.6, and most preferably in the range of 0.4 to 0.6. If the intrinsic viscosity is less than ⁇ 0.2, the impact strength may decrease due to the low molecular weight, or the low molecular weight component with polar groups may increase, resulting in insufficient vibration fatigue strength. is there. On the other hand, if it is greater than 1.8, it may be difficult to carry out the surface treatment and the physical properties may deteriorate.
- the increase in intrinsic viscosity before and after the purification treatment is usually 0.18 or less, preferably 0.12 or less, more preferably 0.09 or less, still more preferably 0.06 or less, Particularly preferred is 0.03 or less, and most preferred is 0.02 or less. If it is larger than 0.18, the low molecular polar component increases, and vibration fatigue strength and tensile strength may decrease.
- Inorganic neutralizing agent is contained in the range of 0.001 to 0.5% by mass, preferably in the range of 0.01 to 0.1%, more preferably 0.05%. If the content of the inorganic neutralizing agent is 0.01% by mass or less, the mold of the molding machine may be corroded by the catalyst residue, and if it is 0.5% by mass or more, the strength may decrease. Examples of the inorganic neutralizing agent include those described in JP-A-2003-238748 and the like, and hydrated talcite is particularly preferable.
- JP-A-8-143739 JP-A-2002-20560, JP-A-7-316239, JP-A-8-127697
- JP-A-7-232324 Known methods described in JP-A-7-232324 and the like can be used.
- the production method is not particularly limited, and when producing maleic acid-modified polypropylene-based resin, for example,
- Solution method and (3) Pyrolysis method leave solvent and catalyst residue and cause odor.
- the above-mentioned melting method (2) is preferable because there is a risk of problems such as air. Production by melt kneading using an extruder is particularly preferred because of high productivity.
- an acid-modified polyolefin resin having the above properties for example, the molecular weight of polypropylene (see JP 2002-20560 A), reaction temperature, maleic acid and organic peroxide concentrations, and crosslinking It can be adjusted by adding a type polymer (such as polybutadiene) (see JP-A-8-143739).
- a type polymer such as polybutadiene
- additives can be added to the processing coffin of the present invention within a range not impairing the effects of the present invention.
- additives include antioxidants, neutralizers, nucleating agents, lubricants, and PH adjusters.
- the surface-treated glass fiber of the present invention is treated with a sizing agent containing the acid-modified polyolefin-based resin for glass fiber processing of the present invention, and the fiber diameter of the glass fiber is in the range of 3 to 30 ⁇ m. It is characterized by that.
- the sizing agent used in the present invention includes the above-described acid-modified polyolefin-based resin for glass fiber treatment and a silane coupling agent.
- the glass fiber processing resin of the present invention has a function of converging the glass fiber to be processed, facilitating handling, and preventing the glass fiber from being broken.
- the silane coupling agent has a function of strengthening the bond between the glass fiber surface and the glass fiber processing resin.
- the sizing agent used in the present invention may include a neutralizing agent and a lubricant.
- a neutralizing agent amines such as ethylenediamine are preferred (see JP 2003-253563 A).
- a polyurethane particle having an average particle size of 3 to: LO m is used (Japanese Patent Laid-Open No.
- silane coupling agent used in the present invention is preferably an aminosilane coupling agent.
- diaminosilane coupling agents are especially preferred.
- silane coupling agent used in the present invention include, for example, silane-based, titanate-based, aluminum-based, chromium-based, zirconium-based, and borane-based coupling agents.
- silane coupling agents and titanate coupling agents are particularly preferred, and particularly preferred are silane coupling agents.
- silane coupling agent examples include triethoxysilane, bur and ris (13-methoxyethoxy) silane, ⁇ -methacryloxypropyltrimethoxysilane, ⁇ -glycidoxypropinoletrimethoxysilane, j8 (3,4) Epoxycyclohexenole) ethinoretrimethoxysilane
- ⁇ - ⁇ - (aminoethyl) - ⁇ -aminopropyltrimethoxysilane examples include ⁇ -aminopropyltrimethoxysilane, ⁇ -mercaptopropyltrimethoxysilane, and ⁇ -chloropropyltrimethoxysilane.
- aminosilanes such as ⁇ -aminopropyltriethoxysilane and ⁇ - ⁇ - (aminoethyl) ⁇ -aminopropyltrimethoxysilane are preferred.
- silane coupling agents examples include those listed in Table 1 below. These are all manufactured by Shin-Etsu Chemical Co., Ltd. Of these, ⁇ -903 and ⁇ -603 are preferred.
- the glass fiber used in the present invention is not particularly limited, but E glass which is preferably C-glass or E-glass is particularly preferable.
- the form of the glass fiber can be a known form such as a rolled form such as roving, cake or yarn, chopped strand, milled fiber, cut fiber, cloth, mat, or tape. Since it is easy to obtain a molded product having a long fiber length, a roving (direct roving) cake or the like that is not twisted is preferable.
- the fiber diameter of the glass fiber is usually within the range of 3 to 30 m, preferably 9 to 30, more preferably 11 to 30, further preferably 15 to 30, particularly preferably 16 to 24 / ⁇ ⁇ . Is within. If the fiber diameter is smaller than 3 m, the fiber may be easily broken, and it may be difficult to produce glass fiber, resulting in high costs. If it exceeds 30 m, the aspect ratio becomes small, and there is a risk that the vibration fatigue strength of a molded product made of fiber-reinforced polyolefin resin using this will be insufficient.
- the amount of sizing agent adhering to the glass fiber is in the range of 0.03 to 2.0% by mass, preferably 0 to 100% by mass of the glass fiber used.
- the excess coupling agent may cause self-condensation and bind to the acid-modified polypropylene-based resin to deactivate the functional group, thereby reducing the strength.
- the cost increases industrially.
- (2) fixing the amount of the silane coupling agent glass fibers are usually from 0.01 to 0.5 wt% of within range, preferably 0. 03-0. 2 mass 0/0, more preferably 0. 04-0. 16 mass 0/0, further good Mashiku ⁇ or 0. 05-0. 12 mass 0/0, especially preferably ⁇ or 0. 06-0. 08 in the range of mass 0/0 .
- the fixed amount C of the silane coupling agent is calculated by the following formula.
- the surface density of the sizing agent of the glass fiber secured amount mosquito ⁇ et calculated Shirankatsu coupling agent on the glass fiber surface (N) is usually 1.0X10 _5 ⁇ 12X10 _5 molZm the range of 2, good Mashiku is 1.6X10 _5 ⁇ 8.0X10 _5, more preferably 2.4X10 _5 ⁇ 8.0X10 _5, further to preferably ⁇ or 2. 7 ⁇ 10 _5 ⁇ 8.0 ⁇ 10 _5, particularly preferably ⁇ or 2. 7X10 _5 ⁇ 6.0X10 "5, and most preferably it is 2. in the range of 8X10 _5 ⁇ 4.0X10 _5 mol / m 2 .
- the vibration fatigue strength of the product may decrease the static strength, and if it exceeds 12X 10 _5 mol / m 2 , the condensation reaction between the silane coupling agents will increase and the strength of the glass fiber interface will decrease. However, the vibration fatigue strength of the molded product may decrease the static strength.
- the surface density (N) of the silane coupling agent is calculated by the following formula.
- the surface-treated glass fiber of the present invention can be produced by a method in which a sizing agent made into a solution (generally an aqueous solution) is applied or sprayed with a roller or the like and then wound into a predetermined shape and dried.
- a sizing agent made into a solution generally an aqueous solution
- the surface treatment method for glass fibers includes sizing and converging the bundle of fiber bundles for drying (Patent No. 3453393), cutting the chopped strands directly after drying, or collecting them and collecting them in a fluidized bed continuous process dryer
- Patent No. 3453393 sizing and converging the bundle of fiber bundles for drying
- a publicly known method such as drying with (No. 09-510427 gazette) can be used without limitation.
- the drying temperature is usually 60 to 180 ° C, preferably 80 to 160 ° C, more preferably 90 to 150 ° C, and particularly preferably 100 to 140 ° C.
- the drying time is usually 1 to 100 hours, preferably 2 to 80 hours, more preferably 3 to 60 hours, still more preferably 6 to 40 hours, and particularly preferably 10 to 30 hours.
- the fiber-reinforced polyolefin resin of the present invention (hereinafter referred to as the reinforced resin of the present invention) includes the surface-treated glass fiber and the polyolefin resin of the present invention.
- the reinforced resin of the present invention substantially includes the surface-treated glass fiber, and a polyolefin resin and Z or acid-modified polyolefin resin.
- the surface-treated glass fiber used in the reinforced resin of the present invention has an aspect ratio (average fiber length Z average fiber diameter) force in the range of 50 to 6000, preferably 70 to 2000, more preferably 150 to 1500, and particularly preferably 250 to Within the range of 1200. If the aspect ratio is less than 50, the strength of the molded product may be insufficient. If it is greater than 6000, the fluidity during molding may be reduced.
- aspect ratio average fiber length Z average fiber diameter
- the polyolefin resin used in the reinforced resin of the present invention is preferably a polypropylene resin, particularly a propylene homopolymer or an ethylene'propylene block copolymer. Pyrene homopolymer is preferred.
- Polypropylene resin may be used alone or in combination with one another, but is most preferred after undergoing a decomposition step with an organic peroxide.
- the amount of the organic peroxide used is 0.5 parts by mass or less with respect to the polypropylene resin. 0.1 parts by mass or less Is more preferably 0.05 parts by mass or less, and more preferably 0.02 parts by mass or less. If the amount exceeding 0.5 parts by mass is used, there is a risk that by-products increase and odor is generated or the hue deteriorates. It is preferable that polyolefin resin has the following characteristics.
- the melt flow rate (MFR) is in the range of 1 to 600 gZlO minutes, preferably 10 to 400, more preferably 30 to 300, still more preferably 40 to 200 gZlO, particularly preferably 50 to 150 gZlO. Min, most preferably in the range of 60-120 gZlO min. If the MFR is smaller than lgZlO, molding may be difficult, and production of fiber-reinforced polyolefin-based resin may be difficult. If it is larger than 600 gZlO, the toughness may be lowered or the impact strength may be lowered.
- Stereoregularity (mmmm fraction) force of homopolymerized part (homo) Usually 90% or more, preferably 93% or more, more preferably 96% or more, particularly preferably 98% or more. If the stereoregularity (mmmm fraction) of the homopolymerized part (homo) is less than 90%, the rigidity (flexural modulus, tensile modulus) may be insufficient.
- the crystallization temperature Tc (B) measured with a scanning calorimeter (DSC) is usually in the range of 80 to 130 ° C, preferably 90 to 125 ° C, more preferably 100. It is in the range of ⁇ 122 ° C., more preferably 105 to 120 ° C., particularly preferably 110 to 118 ° C. If the crystallization temperature Tc (B) is lower than 80 ° C or higher than 130 ° C, the physical properties (strength) of the molded product may not be sufficient.
- Components having a molecular weight of 1,000,000 or more measured by gel permeation chromatography are usually 0.5% or more, preferably 1% or more, particularly preferably 2% or more. The If the component having a molecular weight of 1,000,000 or more is less than 0.5%, rigidity (flexural modulus, tensile modulus) and strength (bending strength, I-tensile strength) may be insufficient.
- the inorganic neutralizing agent is contained in the range of 0.001 to 0.5% by mass, preferably 0.01 to 0.1%, more preferably 0.05%. If the content of the inorganic neutralizing agent is 0.001% by mass or less, the mold of the molding machine may be corroded by the catalyst residue, and if it is 0.5% by mass or more, the strength may be reduced.
- Inorganic neutralizers include those described in JP-A-2003-238748 and the like, and hydrated talcite is particularly preferred.
- Examples of commercially available polypropylene resin used in the reinforced resin of the present invention include the same as those described in the explanation (I 1) for the processing resin of the present invention.
- polypropylene resin particularly propylene homopolymer or ethylene / propylene random copolymer is used.
- propylene homopolymer particularly propylene homopolymer or ethylene / propylene random copolymer is used.
- propylene homopolymer particularly propylene homopolymer or ethylene / propylene random copolymer is used.
- propylene homopolymer particularly preferred is a propylene homopolymer.
- Examples of the acid used for the acid modification of the polyolefin resin include the same acids described in the surface treatment resin of the present invention.
- maleic acid-modified polypropylene resin can be produced by the production method described for the surface treatment resin of the present invention.
- the acid-modified polyolefin resin used in the reinforced resin of the present invention preferably has the following characteristics.
- Boiling methyl ethyl ketone (MEK) extraction amount is 8% by mass or less, preferably 6% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass or less, particularly preferably 2% by mass. % Or less, most preferably 1% by mass or less.
- MEK methyl ethyl ketone
- Mn number average molecular weight
- Acid addition amount (MEK insoluble content) measured by Fourier transform infrared spectroscopy (FT—IR) is in the range of 0.1 to 12% by mass, preferably 0.3 to 10% by mass. Preferably 0.4 to 8% by mass, more preferably 0.5 to 2.9% by mass, particularly preferably 0.6 to 2.9% by mass, most preferably 0.7 to 2.0% by mass. Is within the range.
- the amount of acid addition is less than 0.1% by mass, the strength of the molded product may be reduced, and if it exceeds 12% by mass, poor dispersion may occur.
- the amount of acid addition is more than 1.6% by mass, there may be an increase in polar low molecular weight components, which may result in insufficient vibration fatigue strength of the molded product.
- the molecular weight distribution (Mw / Mn) measured by gel permeation chromatography (GPC) is usually in the range of 2 to 10, preferably 2 to 6, more preferably 2.2 to 5 More preferably, it is in the range of 2.4 to 4.5, particularly preferably 2.5 to 3.5. If the molecular weight distribution (MwZMn) is less than 2, moldability may be deteriorated. If it is more than 10, low molecular weight components having polar groups increase, and vibration fatigue strength may be insufficient.
- a component having a molecular weight of 10,000 or less measured by gel permeation chromatography (GPC) is usually 20% or less, preferably 12% or less, more preferably 10% or less, and even more preferably. It is 8% or less, particularly preferably 7% or less. If the amount of the component having a molecular weight of 10,000 or less is more than 20%, the low molecular weight component having a polar group increases and vibration fatigue strength may be insufficient.
- (VIII) Functional group addition amount measured by Fourier transform infrared spectroscopy (FT-IR) and number average molecular weight force measured by gel permeation chromatography (GPC) “Average per molecule”
- the number of functional groups is usually 0.8 to 10 in the range of Z molecule, preferably 1.2 to 7, more preferably ⁇ or 1. 4 to 5, more preferably ⁇ or 1.6 to 4, This is preferably ⁇ 1. Within the range of 8-3. If the “average number of functional groups per molecule” is less than 0.8, the strength will be insufficient, and if it exceeds 10, aggregation will be difficult to disperse.
- the method for calculating the “average number of functional groups per molecule” is as described above.
- Intrinsic viscosity (measured in 135 ° C decalin) is usually in the range of 0.3 to 1.8, preferably 0.4 to 1.2, and more preferably 0.75 to 0.5: It is within the range of L 00, more preferably ⁇ or 0.60 to 0.95, and particularly preferably 0.70 to 90.90. If the intrinsic viscosity is less than 0.3, the impact strength may decrease due to low molecular weight, or the low molecular weight component having a polar group may increase tl, and vibration fatigue strength may be insufficient. On the other hand, if it is greater than 1.8, there is a risk of poor appearance due to poor impregnation of the resin.
- the increase in intrinsic viscosity (measured in 135 ° C decalin) before and after purification is usually 0.18. In the following, it is preferably 0.12 or less, more preferably 0.09 or less, further preferably 0.06 or less, particularly preferably 0.03 or less, and most preferably 0.02 or less. If it is greater than 0.18, low molecular polar components increase and vibration fatigue strength may be insufficient.
- the (VI) intrinsic viscosity of the fiber-reinforced polyolefin resin is preferably larger than the (P) intrinsic viscosity of the acid-modified polyolefin resin.
- melt Flow Rate (MFR) (Measured in accordance with ASTM D-1238, Load: 2.16 kg, Temperature: 230.C) Force Usually within the range of 20-2000, preferably 60-1500, More preferably, it is in the range of 130 to 1000, more preferably in the range of 180 to 750, and particularly preferably in the range of 260 to 550. If the melt flow rate is less than 20, it is difficult to produce a glass fiber reinforced polypropylene-based resin, or there is a risk of appearance failure due to poor resin impregnation. If it is larger than 20000, the toughness may be lowered or the impact strength may be lowered.
- the crystallization temperature Tc (C) measured with a scanning calorimeter (DSC) is usually in the range of 80 to 1300C, preferably 90 to 125C, more preferably 100. It is in the range of ⁇ 122 ° C., more preferably 105 to 120 ° C., particularly preferably 110 to 118 ° C. Furthermore, preferably T c (C) ⁇ Tc (B) + 5 ° C, particularly preferably Tc (C) ⁇ Tc (B), most preferably Tc (C) ⁇ Tc (B) —3 ° C. .
- Tc (B) is the same as described in the above-mentioned reinforced resin of the present invention.
- Residual Peroxide Concentration Capacity Usually 1OOOppm or less, preferably 500ppm or less, more preferably 10OOppm or less, and particularly preferably 50ppm or less. If the amount of residual peroxide exceeds 1000 ppm, the fluidity during molding may become unstable.
- (XV) low molecular weight component (xylene melted, slurried and washed with acetone, and the washing liquid was concentrated to dryness and measured for weight), usually 8% by mass or less, preferably 3% by mass or less It is preferably 1% by mass or less, more preferably 0.5% by mass or less, particularly preferably 0.3% by mass or less, and most preferably 0.1% by mass or less. If there are more than 8% of low molecular weight components, impact strength will decrease due to low molecular weight, and low molecular weight components with polar groups will increase. The vibration fatigue strength may be insufficient.
- the volatile content (comparing the weight before and after overdrying) is usually 2.0% by mass or less, preferably 1.5% by mass or less, more preferably 1.0% by mass or less, and further preferably 0 5% by mass or less, particularly preferably 0.3% by mass or less, and most preferably 0.2% by mass or less. If the volatile content is more than 2.0%, an odor is generated and the merchantability may be reduced. In addition, vibration fatigue strength and tensile strength may be reduced.
- the blending ratio of (A) surface-treated glass fiber, (B) polyolefin resin and (C) acid-modified polyolefin resin in the reinforced resin of the present invention is as follows.
- (B) + (C) means a rosin component in the reinforced resin.
- (A) If the surface treatment glass is less than 5% by mass, the reinforcing effect may be insufficient, and a dispersion failure may easily occur. If it is more than 80% by mass, molding may be difficult, and the fibers may be hardened, resulting in deterioration of physical properties. On the other hand, if it exceeds 80% by mass, the specific gravity becomes too large and the properties (specific rigidity, specific strength) of the fiber reinforced resin may be lost.
- the blending amount of the (C) acid-modified polyolefin resin used in the reinforced resin of the present invention is as follows.
- Amount of acid-modified polyolefin-based rosin per glass fiber volume (M)" is 0.5 X 10 _5 ⁇ 10 X 10 _5 molZm the range of 2, preferably 0. 8 X 10 _5 ⁇ 6 X 10_ 5, more preferably 1. 2 X 10 one 5 ⁇ 6 X 10_ 5, more preferably 1. 3 X 10 one 5 ⁇ X 10_ 5, particularly preferably 1. 3 X 10 _5 ⁇ 4 X 10 _5, most preferably 1. in the range of 4 X 10 _5 ⁇ 3. 5 X 10 _5 molZm 2.
- the surface density of the silane coupling agent on the surface of the glass fiber calculated from the amount (M) of the acid-modified polyolefin-based resin per glass fiber surface area and the amount of the sizing agent fixed to the glass fiber (N ) ((M) Z (N)) force within the range of 0.2-5, preferably 0.3-3, more preferably 0.4-2, and even more preferably 0.45-1.5. Particularly preferably, it is in the range of 0.5 to 1.2, most preferably in the range of 0.6 to 1. If it is smaller than (M) / (N) ⁇ o.2, the acid-modified polyolefin-based resin is insufficient and vibration fatigue may be reduced.
- the acid-modified polyolefin resin is excessive on the surface of the glass fiber and cannot bind to the glass fiber, and the free acid-modified polyolefin resin may reduce physical properties such as rigidity and bending strength. is there.
- the reinforcing resin of the present invention is preferably a long fiber reinforced polypropylene resin pellet, and the production method thereof will be described later.
- additives can be added to the reinforced resin of the present invention as long as the effects of the present invention are not impaired.
- additives include dispersants, lubricants, plasticizers, flame retardants, antioxidants, antistatic agents, light stabilizers, ultraviolet absorbers, crystallization accelerators (nucleating agents), metal non-additives.
- Additives for modification such as activators; Colorants such as pigments and dyes; Particulate fillers such as carbon black, acid titanium, talc, calcium carbonate, My strength, clay, graphite; Wollastonite, basal fiber,
- Known additives such as short fiber fillers such as cellulose fiber and whiskers such as potassium titanate can be used.
- the long fiber reinforced polyolefin resin pellets of the present invention are made of the reinforced resin of the present invention, the pellet length is in the range of 2 to 200 mm, and the pellet diameter is in the range of 0.5 to 4. Omm. It is characterized by that. If the pellet length is less than 2 mm, the length of the contained fibers will be shortened and the strength of the molded product may be reduced. If it is larger than 200 mm, there is a risk of clogging or classification with a hopper during molding.
- the pellet length is preferably in the range of 3 to 20 mm, more preferably 4 to 12 mm, even more preferably 5 to 10 mm, particularly preferably 6 to 9 mm, and the pellet diameter is preferably 1 0 to 3. Omm, more preferably 1.5 to 2.8 mm, particularly preferably 1.8 to 2.6 mm.
- the long fiber reinforced polyolefin resin pellets of the present invention are produced by the method described in Japanese Patent No. 3234877, literature (molding, No. 5, No. 7, No. 454 (1993)) or other known methods. For example, it can be manufactured by the following method.
- the molten resin is supplied from the extruder, while the continuous glass fiber bundle is passed through and the glass fiber bundle is impregnated with the molten resin, Pull out through the nozzle and pelletize to the desired length.
- Polyolefin resin, modifiers, organic peroxides, etc. can be dry blended and put into the hopper of the extruder, and the modification can be done while simultaneously feeding V! /.
- a roving of reinforcing fibers which is not particularly limited, is passed through a polyolefin-based resin powder flow tank, and after the polyolefin resin-based resin powder is adhered thereto, the melting point of the polyolefin resin-based resin is melted.
- a method of impregnating polyolefin resin with heating as described above Japanese Patent Publication No. 46-4545
- melted into a roving of reinforcing fiber using a crosshead die A method of impregnating a fixed polyolefin resin (Japanese Unexamined Patent Publication No. 62-60625, Japanese Unexamined Patent Publication No.
- the dry blend mixture of the present invention is characterized in that the long fiber reinforced polyolefin resin pellets of the present invention and a thermoplastic resin are dry blended.
- the thermoplastic resin used in the present invention includes a polyolefin resin, a polyolefin resin and a polypropylene resin which is preferable to a plastomer, particularly a maleic acid-modified polypropylene resin.
- Polyolefin resin is preferred.
- thermoplastic resin those similar to those described in the description of the fiber-reinforced polyolefin resin of the present invention can be used. .
- the blending ratio of the long fiber reinforced polyolefin resin pellet: thermoplastic resin is usually within the range of 99.5: 0.5 to L0: 90, preferably 95: Five
- the dry blend of the long fiber reinforced polyolefin resin pellets and the thermoplastic resin can be performed using a known apparatus such as a tumbler or a ribbon mixer. Also, blend (directly mixing) on the molding machine. [VI] (VI) Method for producing long fiber reinforced polyolefin resin pellets
- the method for producing the long fiber reinforced polyolefin resin pellets of the present invention (hereinafter referred to as the production method of the present invention) is once sized by the sizing agent containing the modified polyolefin resin for glass fiber processing of the present invention.
- the fiber bundle is impregnated into the fiber bundle while drawing a continuous fiber bundle, and the composition contains 5 to 80% by mass of glass fiber.
- the long fiber reinforced polyolefin resin pellets produced by the production method of the present invention are 5 to 80 mass%, preferably 10 to 70 mass%, more preferably 30 to 59 mass%, particularly in the composition. Preferably it contains 35-55 mass% glass fiber. If it is less than 5% by mass, sufficient rigidity cannot be obtained and the physical properties may vary. If it exceeds 80% by mass, the fluidity is lowered and molding may be difficult.
- a sizing agent containing a polyolefin resin for glass wire treatment and a silane coupling agent of the present invention is applied and converged to a fiber bundle (usually 400 to 10,000 in the present invention). Made of fiber).
- This fiber bundle is dried to obtain surface-treated glass fibers. Drying may be carried out continuously by rolling it up in the form of roving cake or the like, or by applying force.
- the drying conditions are usually 60-180. Within the range of C, preferably 80-160. C, more preferably 100-140. C, particularly preferably in the range of 110-130 ° C. When the temperature is within the above temperature range, the coupling agent is easily bonded and the strength of the interface is likely to be obtained.
- the produced fiber bundle of the surface-treated glass fiber is introduced into an impregnation die (impregnation box) and impregnated with molten polyolefin resin between the filaments.
- the polyolefin resin may or may not contain the acid-modified polyolefin resin, but it is preferably contained within the range of 0.2 to 50% by mass. 1. 6 to 9.0% by mass is more preferable 2. 0 to 7.0% by mass is particularly preferable 3. It is most preferable to contain 0 to 5.8% by mass. U ⁇ . If it is contained in an amount of 50% by mass or more, adhesion to a metal part such as an impregnation die may occur, and the fiber bundle may be easily cut.
- the residence time of the resin in the impregnation die may be appropriately selected. However, it is usually in the range of 0.5 to 120 minutes, preferably in the range of 0.5 to 60 minutes, more preferably in the range of 1 to 30 minutes, and more preferably in the range of 5 to 20 minutes 2 A range of ⁇ 15 minutes is particularly preferred. If it is less than 5 minutes, the resin is not sufficiently impregnated, resulting in poor dispersion in the molded product, which may reduce the vibration fatigue strength of the molded product. If it is longer than 120 minutes, the fat may be deteriorated.
- the passage time of the fiber bundle in the impregnation die may be selected as appropriate, but is preferably in the range of 0.3 to 30 seconds, more preferably in the range of 15 to 15 seconds, and further in the range of 0 to 10 seconds. Preferred 1. 5-6 seconds is particularly preferred. 0. If the time is shorter than 3 seconds, the resin is not sufficiently impregnated, causing dispersion failure in the molded product, which may reduce the vibration fatigue strength of the molded product. If it is longer than 30 seconds, the surface treatment of the glass fiber may be deteriorated or the residence time of the resin may be shortened, and the vibration fatigue strength of the molded product may be lowered.
- volatile low-molecular-weight polar components can be reduced by deaeration.
- an opening is provided in the impregnation die (impregnation box), and the low molecular weight component is volatilized by retaining in the impregnation die (impregnation box) for a certain period of time. Is preferred.
- Area of the opening is typically total lcm 2 or more, preferably 4 cm 2 or more, more preferably 12cm 2 or more, more preferably 36cm 2 or more, particularly preferably 100 cm 2 or more.
- the average residence time of the resin is usually within the range of 3 to 120 minutes, preferably 6 to 90 minutes, more preferably 8 to 60 minutes, still more preferably 9 to 45 minutes, particularly preferably 10 to 30 minutes. Is within. If it is shorter than 3 minutes, deaeration may be insufficient, and if it is longer than 120 minutes, V may deteriorate.
- the opening may also be used as a fiber inlet.
- the opening may be in direct contact with the atmosphere, in contact with an inert gas (such as nitrogen gas), or may be evacuated (depressurized).
- an inert gas such as nitrogen gas
- an extruder with a vent.
- a fiber bundle impregnated with polyolefin resin is drawn out from an impregnation die (impregnation box) and cooled. On the other hand, the resin is solidified and cut into a desired length to obtain long fiber reinforced polyolefin resin pellets.
- the molded article of the present invention is obtained by molding the fiber-reinforced polyolefin resin, the long-fiber-reinforced polyolefin resin pellet or the dry blend mixture of the present invention.
- the average remaining fiber length of the glass fibers in the molded article of the present invention is usually 0.4 mm or more, preferably 0.8 mm or more, more preferably 1.2 mm, and even more preferably 1.6 mm or more, particularly Preferably it is 1. 8mm or more. If the average remaining fiber length of the glass fibers in the molded product is shorter than 0.4 mm, the strength of the molded product may be reduced.
- the amount of each of toluene, xylene and acetoaldehyde generated in the molded product is usually 300 ⁇ gZ m 3 or less, preferably 100 ⁇ g Zm 3 or less, more preferably 50 ⁇ g Zm 3 or less, and even more preferably 40 ⁇ g Zm. 3 or less, particularly preferably 30 ⁇ gZm 3 or less, most preferably 20 ⁇ g / m 3 or less. If it exceeds 300 ⁇ gZm 3 , the odor may deteriorate.
- the molding method of the molded product of the present invention is not particularly limited, and a known method can be used.
- the molding method is not limited to known methods such as injection molding, injection compression molding, compression molding, gas injection injection molding, foam injection molding, expansion molding, extrusion molding, and hollow molding. Can be used without Of these, a molding method using an injection molding machine is preferred from the viewpoint of productivity and quality stability.
- the surface-treated glass fiber of the present invention is used to obtain a molded product through a mat (glass mat sheet) prepreg, or an in-line compound as described in Molded Plastics Info World 11/2002 P20-35. It is also possible to obtain a molded product by injection compounding such as direct compounding.
- a molded product through a resin pellet, in particular, a long fiber reinforced resin pellet or a blend thereof.
- a test piece (molded product) with the shape shown in Fig. 2 was produced under molding conditions of a resin temperature of 240 ° C and a mold temperature of 40 ° C, and the test piece was broken under constant conditions under vibration fatigue tension (single swing mode). Obtained by measuring the number of vibrations until
- TDS heat extraction temperature 80 ° C (30 minutes)
- Carrier gas He, 31cm / sec
- Production Example 1 Acid-modified polypropylene-based resin for glass fiber treatment
- Modification method 1 Melting method (EM-1-9, EM-11 and EM-12)
- polypropylene, maleic acid and organic peroxide were charged into a vented twin screw extruder and melt-kneaded under predetermined conditions to produce maleic acid-modified polypropylene.
- Boiling methyl ethyl ketone extractable components contained in the obtained maleic acid-modified polypropylene were removed by the following purification method or washing method.
- the maleic acid-modified polypropylene obtained above is completely dissolved by stirring in P-xylene with calo heat (about 130 ° C), and this solution is poured into methyl ethyl ketone for reprecipitation. I gave you. After filtration, it was vacuum-dried (130 ° CX 6 hours).
- EM-13 is a commercial product of maleic acid-modified polypropylene.
- the number average molecular weight was obtained from a polystyrene-based molecular weight distribution curve by gel permeation chromatography (GPC) method according to the method described in JP-A-11 71431.
- the measurement conditions are as follows.
- the EM sample was crushed in a mortar and then extracted with boiling methyl ethyl ketone for 6 hours using a Soxhlet extractor to measure the mass of the extract.
- the FT—IR transmission spectrum of the film is measured and the FT—IR ⁇ spectrum is measured.
- the peak area from 1670 to 1810 cm _1 was calculated, and compared with the calibration curve created above, the “male amount with maleic acid (b) (MEK insoluble matter)” was determined.
- the amount of toluene and xylene generated was determined by measuring the gas chromatogram of the heat generated gas.
- the measurement conditions are as follows. Transfer line temperature: 300 ° C TDS heat extraction temperature: 80 ° C (30 minutes) Column: HP—SMS
- ⁇ -4 is: ⁇ 100 180 A 100 4 E 1 I / O
- Polypropylene and organic peroxides in Table 2 are as follows. Polypropylene:
- EM-1 to 11 correspond to the acid-modified polyolefin resin for glass fiber treatment of the present invention.
- Production Example 2 Production of surface-treated glass fiber (GFEM)
- E-glass fiber with a diameter of 17 m was treated with a sizing agent containing maleic acid-modified polypropylene for glass fiber treatment and silane coupling agent produced in Production Example 1 as shown in Table 4 below. Thereafter, it was dried by heating and roving.
- GFEM-29 CP-1 EH-1 6 0.40 In Table 4, except for GFEM-26 to 28, it corresponds to the surface-treated glass fiber of the present invention.
- the silane coupling agents in Table 4 are as follows.
- CP—1 3 Aminopropyltriethoxysilane (KBE-903; manufactured by Shin-Etsu Chemical Co., Ltd .; molecular weight 221.4, minimum covering area 353m 2 Zg)
- CP-2 N-2 (aminoethyl) 3 aminopropyltrimethoxysilane (KBM-603; manufactured by Shin-Etsu Chemical Co., Ltd .; molecular weight 222.4, minimum covering area 351m 2 Zg)
- Production Example 3 Manufacture of long fiber reinforced polypropylene resin pellets (GFMB)
- Residual heat temperature 200 ° C
- the polypropylene and modified polypropylene in Table 5 are as follows.
- Table 6 shows the production method of maleic acid-modified polypropylene resin (MPP) used for the production of long fiber reinforced polypropylene resin pellets.
- MPP maleic acid-modified polypropylene resin
- Table 7 shows the physical properties of maleic acid-modified polypropylene resin (MPP). The measurement methods for various physical properties are as described in Production Example 1 (2) above.
- ⁇ -2 is Washed 3 times 300 170 A 100 2 E 0.4 1/0
- Vibration fatigue strength (number of times):
- a test piece (molded product) of the shape shown in Fig. 2 (R-2 50 injection dumbbell) is placed at a resin temperature of 240 ° C. It was produced under molding conditions of a mold temperature of 40 ° C., and was determined by measuring the number of vibrations until fracture by vibration fatigue tension (single swing mode) according to the following equipment and measurement conditions.
- M—MB The above PP-3 (80 parts by mass) and the modified polypropylene MPP-1 (120 parts by mass) shown in Table 6 above were melt-kneaded at 200 ° C. using a twin screw extruder with a vent. Fabrication [0182] From the results in Table 8, the molded product produced from the fiber-reinforced polyolefin-based resin pellets containing the surface-treated glass fiber produced using the surface-treated resin of the present invention has a vibration fatigue strength ( 80MPa, 10Hz) is more than 5,000 times.
- 80MPa, 10Hz vibration fatigue strength
- the glass fiber reinforced polypropylene-based resin composition of the present invention is an automotive part (front end, fan sheroud, cooling fan, engine under cover, engine cover, radiator box, side door, back door inner, back door. Outer, outer plate, roof rail, door handle, luggage box, wheel cover, handle, cooling module, air cleaner parts, air cleaner case, pedal), motorcycle, bicycle parts
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Moulding By Coating Moulds (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
Claims
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CN2005800362849A CN101056898B (zh) | 2004-10-22 | 2005-10-20 | 用于处理玻璃纤维的改性聚烯烃类树脂、表面处理玻璃纤维及纤维强化聚烯烃类树脂 |
US11/577,760 US8709586B2 (en) | 2004-10-22 | 2005-10-20 | Modified polyolefin resin for glass fiber treatment, surface-treated glass fiber, and fiber-reinforced polyolefin resin |
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JP2004308485A JP4721687B2 (ja) | 2004-10-22 | 2004-10-22 | ガラス繊維処理用変性ポリオレフィン系樹脂、表面処理ガラス繊維及び繊維強化ポリオレフィン系樹脂 |
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JP4721687B2 (ja) | 2011-07-13 |
US20090075078A1 (en) | 2009-03-19 |
JP2006117839A (ja) | 2006-05-11 |
US8709586B2 (en) | 2014-04-29 |
CN101056898A (zh) | 2007-10-17 |
CN101056898B (zh) | 2010-09-01 |
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