WO2009119624A1 - 熱可塑性樹脂組成物の製造方法 - Google Patents
熱可塑性樹脂組成物の製造方法 Download PDFInfo
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- WO2009119624A1 WO2009119624A1 PCT/JP2009/055880 JP2009055880W WO2009119624A1 WO 2009119624 A1 WO2009119624 A1 WO 2009119624A1 JP 2009055880 W JP2009055880 W JP 2009055880W WO 2009119624 A1 WO2009119624 A1 WO 2009119624A1
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- thermoplastic resin
- resin
- resin composition
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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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
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- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
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- 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
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/41—Intermeshing counter-rotating screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/47—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using discs, e.g. plasticising the moulding material by passing it between a fixed and a rotating disc that are coaxially arranged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/64—Screws with two or more threads
- B29C48/645—Screws with two or more threads neighbouring threads and channels having identical configurations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/005—Processes for mixing polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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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
- C08J2300/00—Characterised by the use of unspecified polymers
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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
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/10—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups
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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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
Definitions
- thermoplastic resin composition containing a compound having a reactive functional group when produced by reactive processing, it is a characteristic that could not be achieved by conventional production methods by melt kneading while stretching and flowing.
- L screw length
- D screw diameter
- the viscoelasticity of the material significantly increases as the deformation speed increases, and the maximum viscosity applied to the object even when subjected to high loads and high speed impacts.
- the present invention relates to a production method for obtaining a thermoplastic resin composition having a shock absorbing property that absorbs a large energy without causing a breakage due to a low load.
- the reactive processing method is a method in which a processing machine that melts and kneads a polymer is used for the reaction.
- so-called “reactive extrusion processing”, particularly using an extruder has high industrial added value, and its use is very active worldwide.
- the extruder When reactive processing is performed in an extruder, the extruder is required to control temperature, ensure reaction time (residence time), uniformly disperse the catalyst, removability of by-products, etc. Ensuring the reaction time (residence time) is one of the extremely important factors in controlling the reaction in the extruder. Therefore, as one method for ensuring the reaction time (residence time) in the extruder, a method using an extruder having a long ratio (L / D) of the screw length (L) to the screw diameter (D). For example, a method of reactive processing of L / D with an extruder of 50 or more is disclosed (see Patent Document 1).
- an extruder with a long L / D has difficulty in equipment maintenance and long-time continuous operation, and a simpler production method has been desired.
- Patent Document 2 describes a new melt-kneading apparatus using elongational flow for the purpose of reducing screw wear, suppressing shear heat generation during melt-kneading, and improving filler dispersibility. There is no disclosure or suggestion about its application to reactive processing using.
- an extruder with a long L / D is required for equipment maintenance.
- thermoplastic resin composition containing a compound having a reactive functional group when produced by reactive processing, it is a characteristic that could not be achieved by conventional production methods by melt kneading while stretching and flowing.
- a method for producing a thermoplastic resin composition having a balance of heat resistance, impact resistance, etc. is provided, and a unique viscoelastic property that the elastic modulus decreases and becomes flexible as the deformation speed increases is remarkably exhibited.
- a method for producing a thermoplastic resin composition having a shock absorption characteristic that absorbs a large energy without causing breakage because the maximum load applied to an object is low even when subjected to a large load and a high speed impact. This is the issue.
- the present inventors have conducted melt-kneading while stretching and flowing when producing a thermoplastic resin composition containing a compound having a reactive functional group by reactive processing.
- the present inventors have found that it is possible to produce a thermoplastic resin composition having characteristics (such as a balance between heat resistance and impact resistance) that could not be achieved by the conventional production methods.
- the screw length (L) Even if a general-purpose extruder with a short screw diameter (D) ratio (L / D) is used, the specific viscoelastic property that the elastic modulus decreases and becomes flexible as the deformation speed increases is remarkably expressed.
- thermoplastic resin composition with impact absorption characteristics that absorbs a large amount of energy without causing breakage because the maximum load applied to the object is low even when subjected to a heavy load and high speed impact.
- the heading has led to the completion of the present invention.
- thermoplastic resin composition of the following (I) or (II), a method for producing a thermoplastic resin composition characterized by melting and kneading while stretching and flowing, (I) Thermoplastic resin (A) and thermoplastic resin composition formed by blending resin (B) having a reactive functional group (II) Thermoplastic resin (A), heat different from thermoplastic resin (A) A thermoplastic resin composition comprising a plastic resin (C) and a compound (D) having a reactive functional group; (2) When producing a thermoplastic resin composition, the inflow effect pressure drop before and after the zone (extension flow zone) in which melt-kneading is carried out by an extruder and melt-kneading while stretching is 10 to 1000 kg / cm 2 A method for producing a thermoplastic resin composition as described in (1) above, (3) When the thermoplastic resin composition is produced, the ratio of the total length of the zone (extension flow zone) in which the melt is kneaded by an extruder
- thermoplastic resin (A) is at least one selected from polyamide resin, polyester resin, polyphenylene sulfide resin, polyacetal resin, styrene resin, polyphenylene oxide resin, polycarbonate resin, polylactic acid resin, and polypropylene resin.
- thermoplastic resin (C) is different from the thermoplastic resin (A), polyamide resin, polyester resin, polyphenylene sulfide resin, polyacetal resin, styrene resin, polyphenylene oxide resin, polycarbonate resin, polylactic acid resin, and The method for producing a thermoplastic resin composition according to any one of the above (1) to (5), wherein the thermoplastic resin composition is at least one selected from polypropylene resins, (7) The thermoplastic resin composition as described in any one of (1) to (6) above, wherein the resin (B) having a reactive functional group is a rubbery polymer having a reactive functional group Manufacturing method, (8) The reactive functional group of the resin (B) having a reactive functional group is at least one selected from an amino group, a carboxyl group, a carboxyl metal salt, an epoxy group, an acid anhydride group, and an oxazoline group.
- the reactive functional group of the compound (D) having a reactive functional group is at least one selected from an amino group, a carboxyl group, a carboxyl metal salt, an epoxy group, an acid anhydride group, and an oxazoline group.
- thermoplastic resin (A) is a polyamide resin
- E (V1) or E (V2) in the tensile test E (V1)> E when V1 ⁇ V2.
- thermoplastic resin composition (V2), the method for producing a thermoplastic resin composition according to any one of the above (1) to (10), (12) In the tensile test, when the tensile breaking elongation at the tensile speeds V1 and V2 is ⁇ (V1) and ⁇ (V2) in the tensile test, when V1 ⁇ V2, ⁇ (V1) ⁇
- the method for producing a thermoplastic resin composition according to any one of the above (1) to (11), characterized by being ⁇ (V2), and (13) any one of the above (1) to (9) The thermoplastic resin composition obtained by the production method described above, (14) a molded product comprising the thermoplastic resin composition described in (13) above, and (15) the molded product is a film or sheet (14) The molded product according to the description.
- thermoplastic resin composition containing a compound having a reactive functional group when a thermoplastic resin composition containing a compound having a reactive functional group is produced by reactive processing, it cannot be achieved by the conventional production method by melt kneading while stretching and flowing. It is possible to produce a thermoplastic resin composition having excellent characteristics (heat resistance, impact resistance balance, etc.), and the ratio of the screw length (L) to the screw diameter (D) (L / D). Even when a general-purpose extruder with a short length is used, the unique viscoelastic property that the modulus of elasticity decreases and becomes flexible as the deformation speed increases, even when subjected to heavy loads and high speed impacts. It is possible to produce a thermoplastic resin composition having a shock absorbing property that absorbs a large amount of energy without causing breakage because the maximum load applied to the object is low.
- thermoplastic resin composition of the present invention is (I) A thermoplastic resin composition comprising a thermoplastic resin (A) and a resin (B) having a reactive functional group, or (II) a thermoplastic resin (A), a thermoplastic resin different from the thermoplastic resin (A) A thermoplastic resin composition comprising (C) and a compound (D) having a reactive functional group.
- thermoplastic resin (A) used in the present invention is not particularly limited as long as it is a resin that can be molded by heating and melting.
- It can be used as at least one resin selected from resins, polypropylene resins, styrene resins such as polystyrene resins and ABS resins, rubbery polymers, polyalkylene oxide resins and the like.
- thermoplastic resins shown above polyamide resins, polyester resins, polyphenylene sulfide resins, polyacetal resins, styrene resins, polyphenylene oxide resins, polycarbonate resins, polylactic acid resins, and polypropylene resins are preferred.
- Polyamide resins, polyphenylene sulfide resins, polyester resins, and polyphenylene oxide resins have high terminal group reactivity, and are preferably polyamide, and most preferably used.
- the polyamide resin used in the present invention is a resin composed of a polymer having an amide bond, and is mainly composed of amino acids, lactams or diamines and dicarboxylic acids.
- Representative examples of the raw materials include amino acids such as 6-aminocaproic acid, 11-aminoundecanoic acid, 12-aminododecanoic acid and paraaminomethylbenzoic acid, lactams such as ⁇ -caprolactam and ⁇ -laurolactam, tetramethylenediamine, penta Methylenediamine, hexamethylenediamine, 2-methylpentamethylenediamine, nonamethylenediamine, undecamethylenediamine, dodecamethylenediamine, 2,2,4- / 2,4,4-trimethylhexamethylenediamine, 5-methylnonamethylene Diamine, metaxylenediamine, paraxylylenediamine, 1,3-bis (aminomethyl) cyclohexane, 1,4-
- a particularly useful polyamide resin is a polyamide resin having a crystal melting temperature of 150 ° C. or more and excellent in heat resistance and strength.
- Specific examples thereof include polycaproamide (polyamide 6), polyhexamethylene azide.
- Particularly preferable examples include polyamide 6, polyamide 66, polyamide 56, polyamide 610, polyamide 510, polyamide 612, polyamide 6/66, polyamide 66 / 6T, polyamide 66 / 6I / 6, polyamide 6T / 5T and the like. Furthermore, it is also practically preferable to use these polyamide resins as a mixture depending on required properties such as moldability, heat resistance, toughness, and surface properties. Among these, polyamide 6 and polyamide 66 are the most suitable. preferable.
- the terminal group concentration of these polyamide resins is not particularly limited, but those having a terminal amino group concentration of 3 ⁇ 10 ⁇ 5 mol / g or more are those having a reactive functional group (B), or reactive functional groups. It is preferable in terms of reactivity with the compound (D).
- the terminal amino group concentration herein can be measured by dissolving a sample in an 85% phenol-ethanol solution, using thymol blue as an indicator, and titrating with an aqueous hydrochloric acid solution.
- the degree of polymerization of these polyamide resins is not particularly limited, and the relative viscosity measured at 25 ° C. in a 98% concentrated sulfuric acid solution having a sample concentration of 0.01 g / ml is in the range of 1.5 to 5.0, particularly 2. A range of 0 to 4.0 is preferable.
- the polyester resin used in the present invention is a thermoplastic resin composed of a polymer having an ester bond in the main chain, and is a dicarboxylic acid (or an ester-forming derivative thereof) and a diol (or an ester-forming derivative thereof). ) And a polymer obtained by a condensation reaction having as a main component, a copolymer, or a mixture thereof.
- dicarboxylic acid examples include terephthalic acid, isophthalic acid, phthalic acid, 2,6-naphthalenedicarboxylic acid, 1,5-naphthalenedicarboxylic acid, bis (p-carboxyphenyl) methane, anthracene dicarboxylic acid, and 4,4′-diphenyl ether dicarboxylic acid.
- aromatic dicarboxylic acids such as 5-sodiumsulfoisophthalic acid
- aliphatic dicarboxylic acids such as adipic acid, sebacic acid, azelaic acid, dodecanedioic acid, 1,3-cyclohexanedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, etc.
- alicyclic dicarboxylic acids and ester-forming derivatives thereof are examples of aromatic dicarboxylic acids and ester-forming derivatives thereof.
- the diol component includes aliphatic glycols having 2 to 20 carbon atoms, that is, ethylene glycol, propylene glycol, 1,4-butanediol, neopentyl glycol, 1,5-pentanediol, 1,6-hexanediol, decamethylene glycol. , Cyclohexanedimethanol, cyclohexanediol, and the like, or long-chain glycols having a molecular weight of 400 to 6000, that is, polyethylene glycol, poly-1,3-propylene glycol, polytetramethylene glycol, and the like, and ester-forming derivatives thereof.
- Preferred examples of these polymers or copolymers include polybutylene terephthalate, polybutylene (terephthalate / isophthalate), polybutylene (terephthalate / adipate), polybutylene (terephthalate / sebacate), polybutylene (terephthalate / decanedicarboxylate), Polybutylene naphthalate, polyethylene terephthalate, polyethylene (terephthalate / isophthalate), polyethylene (terephthalate / adipate), polyethylene (terephthalate / 5-sodium sulfoisophthalate), polybutylene (terephthalate / 5-sodium sulfoisophthalate), polyethylene Examples include naphthalate and polycyclohexanedimethylene terephthalate.
- polyester compositions To polybutylene terephthalate, polybutylene (terephthalate / adipate), polybutylene (terephthalate / decane dicarboxylate), polybutylene naphthalate, polyethylene terephthalate, polyethylene (terephthalate / adipate), polyethylene naphthalate, polycyclohexanedimethylene terephthalate, etc. Particularly preferred and most preferred is polybutylene terephthalate (polybutylene terephthalate resin).
- the polybutylene terephthalate resin preferably has an intrinsic viscosity measured at 25 ° C. using an o-chlorophenol solvent in the range of 0.36 to 1.60, particularly 0.52 to 1.25.
- polybutylene terephthalate resins having different intrinsic viscosities may be used in combination, and the intrinsic viscosity is preferably in the range of 0.36 to 1.60.
- these polybutylene terephthalate resins are durable if the COOH end group amount obtained by potentiometric titration of m-cresol solution with an alkaline solution is in the range of 1 to 50 eq / t (end group amount per ton of polymer). It can be preferably used from the viewpoint of the property and the effect of suppressing anisotropy.
- polyphenylene oxide resin used in the present invention examples include poly (2,6-dimethyl-1,4-phenylene oxide), poly (2-methyl-6-ethyl-1,4-phenylene oxide), and poly (2,6-dimethyl-1,4-phenylene oxide).
- poly(2,6-diphenyl-1,4-phenylene oxide) examples include poly (2-methyl-6-phenyl-1,4-phenylene oxide), poly (2,6-dichloro-1,4-phenylene oxide), etc.
- a copolymer such as a copolymer of 2,6-dimethylphenol and other phenols (for example, 2,3,6-trimethylphenol).
- poly (2,6-dimethyl-1,4-phenylene oxide) and a copolymer of 2,6-dimethylphenol and 2,3,6-trimethylphenol are preferable, and in particular, poly (2,6-dimethyl) -1,4-phenylene oxide) is preferred.
- the polyphenylene oxide resin preferably has a reduced viscosity (0.5 g / dl chloroform solution) measured at 30 ° C. in the range of 0.15 to 0.70.
- the method for producing such a polyphenylene oxide resin is not particularly limited, and those obtained by known methods can be used. For example, it can be easily produced by oxidative polymerization using as a catalyst a complex of cuprous salt and amine by Hay described in US Pat. No. 3,306,874.
- the polyphenylene oxide resin obtained as described above is further subjected to various treatments such as modification or activation with a functional group-containing compound such as an acid anhydride group, an epoxy group, or an isocyanate group. It is of course possible to use it.
- the resin (B) having a reactive functional group of the present invention is a resin having a reactive functional group in a molecular chain.
- the resin serving as the base of the resin (B) having a reactive functional group of the present invention is not particularly limited.
- thermoplastic resin (A) selected from styrenic resins such as resin and ABS resin, rubber polymer, polyalkylene oxide resin and the like It is possible to have.
- polyethylene resins polypropylene resins, styrene resins, and rubbery polymers are preferable from the viewpoint of easy introduction of reactive functional groups, and rubber polymers are more preferable from the viewpoint of impact resistance and toughness improvement effect.
- Such a rubbery polymer generally contains a polymer having a glass transition temperature lower than room temperature, and some of the molecules are bound to each other by covalent bonds, ionic bonds, van der Waals forces, entanglement, etc. It refers to a polymer.
- Ethylene-unsaturated carboxylic acid ester copolymers acrylic acid ester-butadiene copolymers, acrylic elastic polymers such as butyl acrylate-butadiene copolymer, and ethylene-vinyl acetate and other ethylene-fatty acid copolymers.
- Polymer, Eth Ethylene-propylene non-conjugated diene terpolymers such as ethylene-propylene-ethylidene norbornene copolymer, ethylene-propylene-hexadiene copolymer, butylene-isoprene copolymer, chlorinated polyethylene, polyamide elastomer, polyester elastomer, etc.
- Preferred examples include thermoplastic elastomers. Among these, when a polyamide resin is used as the thermoplastic resin (A), an ethylene-unsaturated carboxylic acid ester copolymer is preferably used from the viewpoint of compatibility.
- the unsaturated carboxylic acid ester in the ethylene-unsaturated carboxylic acid ester copolymer is a (meth) acrylic acid ester, preferably an ester of (meth) acrylic acid and an alcohol.
- Specific examples of the unsaturated carboxylic acid ester include (meth) acrylic acid such as methyl (meth) acrylate, ethyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, and stearyl (meth) acrylate. Examples include esters.
- the weight ratio of the ethylene component to the unsaturated carboxylic acid ester component in the copolymer is not particularly limited, but is preferably in the range of 90/10 to 10/90, more preferably 85/15 to 15/85.
- the number average molecular weight of the ethylene-unsaturated carboxylic acid ester copolymer is not particularly limited, but is preferably in the range of 1000 to 70000 from the viewpoint of fluidity and mechanical properties.
- the thermoplastic resin (C) of the present invention is not particularly limited as long as it is a resin that can be molded by heating and melting.
- a resin that can be molded by heating and melting for example, polyamide resin, polyester resin, polyphenylene sulfide resin , Polyacetal resin, polyphenylene oxide resin, polycarbonate resin, polylactic acid resin, polysulfone resin, polytetrafluoroethylene resin, polyetherimide resin, polyamideimide resin, polyimide resin, polyethersulfone resin, polyetherketone resin, polythioetherketone resin
- the thermoplastic resin (A) selected from polyether ether ketone resin, polyethylene resin, polypropylene resin, styrenic resin such as polystyrene resin and ABS resin, rubber polymer, polyalkylene oxide resin, etc. That can be used as at least one or more resins.
- the compound (D) having a reactive functional group of the present invention is a compound having a reactive functional group in a molecular chain.
- Such a compound may be a low molecular weight body or a high molecular weight body.
- the reactive functional group present in the resin (B) having a reactive functional group or the compound (D) having a reactive functional group according to the present invention refers to the thermoplastic resin (A) or the thermoplastic resin (C).
- the thermoplastic resin (A) or the thermoplastic resin (C) There is no particular limitation as long as it reacts with existing functional groups, but examples include amino groups, carboxyl groups, carboxyl metal salts, hydroxyl groups, acid anhydride groups, epoxy groups, isocyanate groups, mercapto groups, oxazoline groups, sulfonic acids. There may be mentioned at least one selected from groups and the like. Of these, amino groups, carboxyl groups, carboxyl metal salts, epoxy groups, acid anhydride groups, and oxazoline groups are preferably used because of their high reactivity and low side reactions such as decomposition and crosslinking.
- Examples of the acid anhydride in the acid anhydride group described above include maleic anhydride, itaconic anhydride, endic acid anhydride, citraconic acid anhydride, 1-butene-3,4-dicarboxylic acid anhydride and the like. Two or more of these may be used simultaneously. Of these, maleic anhydride and itaconic anhydride are preferably used.
- the method can be carried out by a generally known technique and is not particularly limited.
- the acid anhydride group and the raw material for the rubbery polymer can be used.
- a method of copolymerizing with a monomer, a method of grafting an acid anhydride onto a rubber polymer, and the like can be used.
- an epoxy group when introduced into a rubbery polymer, the method can be carried out by a generally known technique and is not particularly limited.
- a vinyl monomer having an epoxy group is added to a rubbery polymer.
- a method of copolymerizing with a monomer that is a raw material of a coalescence, a method of polymerizing a rubbery polymer using a polymerization initiator or a chain transfer agent having the above functional group, a method of grafting an epoxy compound onto a rubbery polymer, etc. Can be used.
- Examples of the vinyl monomer having an epoxy group include glycidyl ester compounds of ⁇ , ⁇ -unsaturated acids such as glycidyl acrylate, glycidyl methacrylate, glycidyl ethacrylate, and glycidyl itaconate.
- the method can be carried out by a generally known technique, and is not particularly limited.
- 2-isopropenyl-oxazoline, 2-vinyl-oxazoline, 2 A method of copolymerizing a vinyl monomer having an oxazoline group such as -acryloyl-oxazoline or 2-styryl-oxazoline with a monomer that is a raw material of a rubbery polymer can be used.
- the method can be performed by a generally known technique and is not particularly limited.
- an unsaturated carboxylic acid-based monomer having a carboxyl group For example, a method of copolymerizing the body with a monomer that is a raw material of the resin serving as a base of (B) can be used.
- Specific examples of the unsaturated carboxylic acid include (meth) acrylic acid.
- the resin (B) having a reactive functional group include ethylene-unsaturated carboxylic acid copolymers such as ethylene-acrylic acid and ethylene-methacrylic acid.
- a carboxyl metal salt in which a part of the carboxyl group is a metal salt is effective as a reactive functional group, and examples thereof include (meth) acrylic acid metal salts.
- the metal of a metal salt is not specifically limited, Preferably, alkali metals, such as sodium, alkaline-earth metals, such as magnesium, zinc etc. are mentioned.
- the resin (B) having a reactive functional group include ethylene-unsaturated carboxylic acid-unsaturated carboxylic acid metal salt copolymers such as ethylene-acrylic acid-acrylic acid metal salt and ethylene-methacrylic acid-methacrylic acid metal salt. Etc.
- the weight ratio of the unsaturated carboxylic acid component to the unsaturated carboxylic acid metal salt component in the copolymer is not particularly limited, but is preferably 95/5 to 5/95, more preferably 90/10 to 10/90. is there. *
- the number average molecular weight of the ethylene-unsaturated carboxylic acid ester copolymer is not particularly limited, but is preferably in the range of 1000 to 70000 from the viewpoint of fluidity and mechanical properties.
- the number of functional groups per molecular chain is not particularly limited, but usually 1 to 10 is preferable, such as crosslinking. In order to reduce side reactions, 1 to 5 are preferable. Moreover, although the molecule
- thermoplastic resin (A) and the resin (B) which has a reactive functional group in this invention (weight of (A)) / (weight of (B)) is 5 /
- the range of 95 to 95/5 is preferable, the range of 10/90 to 90/10 is more preferable, and the range of 15/85 to 85/15 is most preferable.
- the blending ratio of the thermoplastic resin (A) and the thermoplastic resin (C) in the present invention is not particularly limited, but (weight of (A)) / (weight of (C)) is 5/95 to 95 / A range of 5 is preferred, a range of 10/90 to 90/10 is more preferred, and a range of 15/85 to 85/15 is most preferred.
- the addition amount of the compound (D) having a reactive functional group with respect to 100 parts by weight of the sum of the weights of the thermoplastic resin (A) and the thermoplastic resin (C) in the present invention is not particularly limited, but is preferably 0.1 -50 parts by weight, more preferably 0.2-40 parts by weight, still more preferably 0.3-30 parts by weight.
- the extension flow is a flow method in which molten resin is stretched in two flows flowing in opposite directions.
- generally used shear flow is a flow method in which molten resin undergoes deformation in two flows having different velocities in the same direction.
- the extension flow has a higher dispersion efficiency than the shear flow generally used during melt-kneading, so that the reaction can proceed efficiently, especially in the case of alloying with a reaction such as reactive processing. It becomes.
- melt kneading using an extruder is preferably used.
- the extruder include a single screw extruder, a twin screw extruder, and a multi-screw extruder having three or more axes.
- a single screw extruder and a twin screw extruder are preferably used, and a twin screw extruder is particularly preferably used.
- the screw of such a twin screw extruder is not particularly limited, and a fully meshed type, an incomplete meshed type, a non-meshed type screw, etc. can be used. It is a type.
- the rotation direction of the screw may be either the same direction or a different direction, but from the viewpoint of kneading property and reactivity, the rotation direction is preferably the same direction.
- the most preferred screw is a co-rotating fully meshed type.
- the inflow effect pressure drop before and after the zone for melt kneading while stretching and flowing (extension flow zone) is preferably 10 to 1000 kg / cm 2. .
- the inflow effect pressure drop before and after the zone (extension flow zone) for melt kneading while stretching and flowing means the pressure difference ( ⁇ P 0 ) in the extension flow zone from the pressure difference ( ⁇ P) before the extension flow zone. It can be obtained by subtracting.
- the inflow effect pressure drop before and after the extension flow zone is less than 10 kg / cm 2, it is preferable because the rate of extension flow formation in the extension flow zone is low and the pressure distribution becomes non-uniform. Absent.
- the inflow effect pressure drop before and after the extension flow zone is larger than 1000 kg / cm 2 , the back pressure in the extruder becomes too large, and it is not preferable because stable production becomes difficult.
- the inflow effect pressure drop before and after the zone of melt kneading while stretching and flowing (extension and flow zone) is preferably in the range of 30 to 600 kg / cm 2 , more preferably in the range of 50 to 600 kg / cm 2 , and even more preferably 100 A range of ⁇ 500 kg / cm 2 is most preferred.
- a zone for melting and kneading while stretching and flowing with respect to the full length of the screw of the extruder is preferably in the range of 5 to 60%, more preferably in the range of 10 to 55%, and still more preferably in the range of 15 to 50%.
- the length of one melt flow kneading zone (extension flow zone) in the screw of the extruder is Lk, and the screw diameter is D.
- Lk / D is preferably 0.2 to 10. More preferably, it is 0.3-9, and still more preferably 0.5-8.
- the zone (extension flow zone) in which the twin-screw extruder melts and kneads while stretching and flowing is preferably not disposed unevenly at a specific position in the screw.
- the zone (extension flow zone) in which melt-kneading while stretching and flowing is arranged at three or more locations in the extruder screw.
- the specific method of the zone for melt kneading while stretching and flowing includes a kneading disk, and the top and rear surfaces of the kneading disk at the disk front end side.
- a resin passage with a reduced cross-sectional area from the screw front side to the rear end side is formed in the part, or a resin passage in which the cross-sectional area through which the molten resin passes in the extruder is temporarily reduced Is a preferred example.
- the amount of extrusion of the thermoplastic resin composition with respect to 1 rpm of the screw is preferably 0.01 kg / h or more.
- the extrusion amount is an extrusion rate of the thermoplastic resin composition discharged from the extruder, and is a weight (kg) extruded per hour. If the amount of extrusion of the thermoplastic resin composition with respect to 1 rpm of the screw is less than 0.01 kg / h, the amount of extrusion with respect to the number of rotations is not sufficient, and the residence time in the extruder becomes too long, causing thermal deterioration.
- the rotational speed of the screw is not particularly limited as long as it is within the above range, but is usually 10 rpm or more, preferably 50 rpm or more, and more preferably 80 rpm or more.
- the amount of extrusion is not particularly limited as long as it is within the above range, but is usually 0.1 kg / h or more, preferably 0.15 kg / h or more, more preferably 0.2 kg / h or more.
- the residence time of the thermoplastic resin composition in the extruder is preferably 0.1 to 20 minutes.
- the residence time means that the thermoplastic resin composition is extruded from the discharge port of the extruder from the position of the screw base to which the raw material is supplied, and the colorant and the like are added together with the raw material. This is the time until the maximum degree of coloration of the extrudate by the colorant.
- the residence time is less than 0.1 minute, the reaction time in the extruder is short, the reaction is not sufficiently promoted, and the properties of the thermoplastic resin composition (balance of heat resistance, impact resistance, etc.) are improved.
- the residence time in the present invention is preferably 0.3 to 15 minutes, more preferably 0.5 to 5 minutes.
- thermoplastic resin composition obtained by the present invention remarkably exhibits the non-viscoelastic property that it becomes more flexible as it is deformed at high speed, and the maximum load applied to the object even when subjected to a large load or high-speed impact. It can absorb large energy without causing destruction.
- the thermoplastic resin composition produced according to the present invention has an elastic modulus of E (V1) and E (V2) at a tensile velocity of V1 and V2, and when V1 ⁇ V2, E (V1 )> E (V2).
- the tensile test in this case is performed according to a method specified in the standard.
- the tensile elastic modulus indicates the slope of the initial straight line portion of the stress-strain curve.
- the thermoplastic resin composition produced according to the present invention has an elongation at break of ⁇ (V1) and ⁇ (V2) at tensile speeds V1 and V2, and when V1 ⁇ V2, ⁇ ( It is preferable that V1) ⁇ (V2).
- the tensile elongation at break indicates the elongation at the moment of fracture.
- the above relational expression is preferably established for all V1 and V2 within the range of the tensile speed of 10 mm / min to 500 mm / min, and more preferably any V1 within the range of 1 mm / min to 1000 mm / min. , V2 is preferably established.
- thermoplastic resin composition produced according to the present invention a resin as a base of the resin (B) having another reactive functional group is blended as necessary within the range not impairing the characteristics. Can do. Two or more types of resins as the base of the resin (B) having such a reactive functional group can be used in combination.
- the blending amount is not particularly limited, but is preferably 1 to 400 parts by weight with respect to 100 parts by weight of the thermoplastic resin composition.
- a filler may be used as necessary to improve strength, dimensional stability, and the like.
- the filler may be fibrous or non-fibrous, or a combination of fibrous filler and non-fibrous filler may be used.
- the filler examples include glass fiber, glass milled fiber, carbon fiber, potassium titanate whisker, zinc oxide whisker, aluminum borate whisker, aramid fiber, alumina fiber, silicon carbide fiber, ceramic fiber, asbestos fiber, stone-kow fiber, metal Fibrous fillers such as fibers, wollastonite, zeolite, sericite, kaolin, mica, clay, pyrophyllite, bentonite, asbestos, talc, alumina silicate and other silicates, alumina, silicon oxide, magnesium oxide, zirconium oxide, Metal compounds such as titanium oxide and iron oxide, carbonates such as calcium carbonate, magnesium carbonate and dolomite, sulfates such as calcium sulfate and barium sulfate, hydroxides such as magnesium hydroxide, calcium hydroxide and aluminum hydroxide, Rasubizu, ceramic beads, non-fibrous fillers such as boron nitride and silicon carbide and the like, which may be hollow, it is also possible to further combination of these fill
- these fibrous and / or non-fibrous fillers are pretreated with a coupling agent such as an isocyanate compound, an organic silane compound, an organic titanate compound, an organic borane compound, an epoxy compound, It is preferable in terms of obtaining superior mechanical strength.
- a coupling agent such as an isocyanate compound, an organic silane compound, an organic titanate compound, an organic borane compound, an epoxy compound
- the amount of the filler is not particularly limited, but is usually 0.1 to 400 parts by weight based on 100 parts by weight of the thermoplastic resin composition. .
- thermoplastic resin composition produced according to the present invention other thermoplastic resins, rubbers, and various additives can be blended as needed within the range not impairing the characteristics.
- Such rubbers include, for example, polybutadiene, polyisoprene, styrene-butadiene random copolymers and block copolymers, hydrogenated products of the block copolymers, acrylonitrile-butadiene copolymers, butadiene-isoprene copolymers, and the like.
- ethylene-propylene random copolymer and block copolymer ethylene-butene random copolymer and block copolymer, ethylene and ⁇ -olefin copolymer
- ethylene-acrylic acid ethylene -Ethylene-unsaturated carboxylic acid copolymers such as methacrylic acid, ethylene-acrylic acid esters, ethylene-unsaturated carboxylic acid ester copolymers such as ethylene-methacrylic acid esters, and some unsaturated carboxylic acids are metal salts.
- ethylene-acrylic acid-gold acrylate Salt ethylene-unsaturated carboxylic acid-unsaturated carboxylic acid metal salt copolymer such as ethylene-methacrylic acid-methacrylic acid metal salt, acrylic ester-butadiene copolymer such as butyl acrylate-butadiene copolymer
- Ethylene-propylene non-conjugated diene ternary copolymer such as ethylene-propylene-ethylidene norbornene copolymer, ethylene-propylene-hexadiene copolymer, ethylene-propylene copolymer such as ethylene-vinyl acetate
- Preferred examples include polymers, butylene-isoprene copolymers, thermoplastic elastomers such as chlorinated polyethylene, polyamide elastomer, and polyester elastomer, and modified products thereof. Two or more kinds of such rubbers can be used in combination. When such rubbers are used,
- Such various additives are preferably crystal nucleating agents, anti-coloring agents, hindered phenols, hindered amines, hydroquinone-based, phosphite-based and substituted products thereof, copper halides, iodide compounds and the like, Stabilizers, resorcinol-based, salicylate-based, benzotriazole-based, benzophenone-based, hindered amine-based weathering agents, aliphatic alcohols, aliphatic amides, aliphatic bisamides, release agents such as ethylenebisstearylamide and higher fatty acid esters, p -Plasticizers such as octyl oxybenzoate and N-butylbenzenesulfonamide, lubricants, dyes such as nigrosine and aniline black, pigments such as cadmium sulfide, phthalocyanine and carbon black, alkyl sulfate type anionic antistatic agents Agent, 4th grade
- a hindered phenol compound and a phosphorus compound are preferably used.
- the hindered phenol compound include triethylene glycol-bis [3-t-butyl- (5-methyl-4 -Hydroxyphenyl) propionate], N, N′-hexamethylenebis (3,5-di-t-butyl-4-hydroxy-hydrocinnamide), tetrakis [methylene-3- (3 ′, 5′-di-t- Butyl-4′-hydroxyphenyl) propionate] methane, pentaerythrityltetrakis [3- (3 ′, 5′-di-t-butyl-4′-hydroxyphenyl) propionate], 1,3,5-tris (3 , 5-Di-t-butyl-4-hydroxybenzyl) -s-triazine-2,4,6- (1H, 3H, 5H) -tri 1,1,3-tris (2-methyl-4-hydroxy-5-tert-
- ester type polymer hindered phenol type is preferable, and specifically, tetrakis [methylene-3- (3 ′, 5′-di-t-butyl-4′-hydroxyphenyl) propionate] methane, pentaerythrityl. Tetrakis [3- (3 ′, 5′-di-t-butyl-4′-hydroxyphenyl) propionate], 3,9-bis [2- (3- (3-t-butyl-4-hydroxy-5- Methylphenyl) propionyloxy) -1,1-dimethylethyl] -2,4,8,10-tetraoxaspiro [5,5] undecane and the like are preferably used.
- antioxidant phosphorus compounds include bis (2,6-di-t-butyl-4-methylphenyl) pentaerythritol-di-phosphite, bis (2,4-di-t-butyl). Phenyl) pentaerythritol-di-phosphite, bis (2,4-di-cumylphenyl) pentaerythritol-di-phosphite, tris (2,4-di-t-butylphenyl) phosphite, tetrakis (2,4- Di-t-butylphenyl) -4,4'-bisphenylene phosphite, di-stearyl pentaerythritol di-phosphite, triphenyl phosphite, 3,5-di-butyl-4-hydroxybenzyl phosphonate diethyl Examples include esters. Two or more kinds of such antioxidants can be used
- thermoplastic resins, rubbers, and various additives can be blended at any stage for producing the thermoplastic resin composition of the present invention.
- Method of adding simultaneously method of adding two-component resin by means of side feed during melt-kneading, method of adding after two-component resin is melt-kneaded in advance, or first adding to one resin and melting The method of mix
- mixing is mentioned.
- the molding method of the thermoplastic resin composition produced according to the present invention can be any method, and the molding shape can be any shape.
- the molding method include extrusion molding, injection molding, hollow molding, calendar molding, compression molding, vacuum molding, foam molding, etc., and pellets, plates, films or sheets, pipes, hollows, boxes It can be formed into a shape such as a shape.
- the molded product of the thermoplastic resin composition produced according to the present invention is used for connectors, coils, sensors, LED lamps, sockets, resistors, relay cases, small switches, coil bobbins, capacitors, variable capacitor cases, optical pickups. , Oscillator, various terminal boards, transformer, plug, printed circuit board, tuner, speaker, microphone, headphones, small motor, magnetic head base, power module, semiconductor, liquid crystal, FDD carriage, FDD chassis, motor brush holder, parabolic antenna
- electronic parts such as computer-related parts, generators, motors, transformers, current transformers, voltage regulators, rectifiers, inverters, relays, power contacts, switches, circuit breakers, Knife switch, other pole rod
- Electrical equipment parts such as electronic parts cabinets, VTR parts, TV parts, irons, hair dryers, rice cooker parts, microwave oven parts, acoustic parts, audio / laser discs (registered trademark) / compact discs, DVDs, etc.
- thermoplastic resin composition produced according to the present invention is also suitable for film and sheet applications, and is suitably used for soft members for automobile interiors, packaging films, desk mats and the like.
- A-1 Polyamide resin (Polyamide 6) “CM1017” (manufactured by Toray Industries, Inc.)
- A-2 Polyamide 6 resin
- A-3 Polyamide resin (polyamide 66) “CM3001N” (manufactured by Toray Industries, Inc.) with a relative viscosity of 2.35 at a melting point of 225 ° C.
- A-4 Polyamide 56 resin obtained in Reference Example 1 below
- A-5 Polyamide 6T / 66 resin A-6 obtained in Reference Example 2 below
- A-6 Polyamide 66 / 6I / 6 obtained in Reference Example 3 below
- Resin A-7 Polybutylene terephthalate resin “1401” (manufactured by Toray Industries, Inc.)
- A-8 Polyphenylene sulfide resin “A900” (manufactured by Toray Industries, Inc.)
- A-9 Polyethylene terephthalate resin “SA-135” (Mitsui Chemicals)
- A-10 Aromatic polycarbonate resin “Toughlon A2500” (manufactured by Idemitsu Kosan Co., Ltd.)
- A-11 Melting point 170 ° C., weight average molecular weight 210,000 (gel permeation chromatography method, 1,1,1,3,3,3-hexafluoro-2-propanol eluent, converted to PMMA
- A-12 Polyphenylene ether resin “PX-100F” (Mitsubishi Engineering Plastics)
- B-1 Glycidyl methacrylate-modified polyethylene copolymer “Bond First BF-7L” (manufactured by Sumitomo Chemical Co., Ltd.)
- B-2 Glycidyl methacrylate-modified polyethylene copolymer “Bond First BF-7M” (manufactured by Sumitomo Chemical Co., Ltd.)
- B-3 Glycidyl methacrylate-modified polyethylene copolymer “Bond First BF-E” (manufactured by Sumitomo Chemical Co., Ltd.)
- B-4 Maleic anhydride-modified ethylene-1-butene copolymer “Tuffmer MH7020” (manufactured by Mitsui Chemicals)
- B-5 Ethylene / methacrylic acid / zinc methacrylate copolymer “Himiran 1706” (Mitsui / DuPont Polychemicals)
- C-1 Ethylene /
- the obtained polyamide resin had a relative solution viscosity of 2.76 measured at 25 ° C. and a concentration of 0.01 g / ml in 98% concentrated sulfuric acid, and an amino end group content of 8.12 ⁇ 10 ⁇ 5 eq / g, The amount of carboxyl end groups was 5.21 ⁇ 10 ⁇ 5 eq / g. Tm measured by a finger scanning calorimeter was 254 ° C.
- the polymerization was completed by reacting at 270 ° C. for 10 minutes under a reduced pressure of ⁇ 160 mmHg. Thereafter, the polymer discharged into the water bath was pelletized with a strand cutter to obtain a polyamide resin (A-6).
- the relative viscosity of the obtained polyamide measured at 25 ° C. and a concentration of 0.01 g / ml in 98% by weight concentrated sulfuric acid was 2.03.
- the melting point measured with a differential scanning calorimeter was 233 ° C.
- Example 1 Polyamide 6 (A-1: CM1017, manufactured by Toray Industries, Inc.) was used as the thermoplastic resin (A), and glycidyl methacrylate-modified polyethylene copolymer (B-1) was used as the resin (B) having a reactive functional group. The mixture is mixed at the blending ratio shown in FIG.
- the ratio (%) of the total length of the zone (extension flow zone) for melt kneading while stretching and flowing with respect to the total length of the screw is defined as (total length of the extension flow zone) / (total length of the screw) ⁇ 100, 29 %.
- a twist kneading disk having a spiral angle ⁇ of 20 ° in the direction of half rotation of the screw was provided (this screw configuration is designated as A-1).
- A-1 the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- Example 3 Polyamide 6 (A-1: CM1017, manufactured by Toray Industries, Inc.) is used as the thermoplastic resin (A), and a glycidyl methacrylate-modified polyethylene copolymer is used as the resin (B) having a reactive functional group.
- the ratio (%) of the total length of the zone (extension flow zone) in which melt kneading while stretching and flowing with respect to the total length of the screw is defined as (total length of extension flow zone) / (total length of screw) ⁇ 100, 31 %.
- a twist kneading disk having a spiral angle ⁇ of 20 ° in the half-rotation direction of the screw was provided (this screw configuration was designated as B-1). Further, by subtracting the pressure difference ( ⁇ P 0 ) in the extension flow zone from the pressure difference ( ⁇ P) in front of the twist kneading disc, the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- the inflow effect pressure drop before and after the extension flow zone was found to be 120 kg / cm 2 .
- thermoplastic resin (A) and the resin (B) having a reactive functional group as shown in Table 3 melt-kneading was carried out in the same manner as in Example 1.
- the pressure difference ( ⁇ P 0 ) in the extension flow zone was obtained by subtracting the pressure difference ( ⁇ P 0 ) in the extension flow zone from the pressure difference ( ⁇ P) in front of the twist kneading disc, the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- Example 14-17 Melt kneading was carried out in the same manner as in Example 1 except that the thermoplastic resin (A) and the resin (B) having a reactive functional group were used as shown in Table 4 and the cylinder temperature was 280 ° C. In addition, by subtracting the pressure difference ( ⁇ P 0 ) in the extension flow zone from the pressure difference ( ⁇ P) in front of the twist kneading disc, the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- Example 18 Melt kneading was carried out in the same manner as in Example 1 except that the thermoplastic resin (A) and the resin (B) having a reactive functional group were used as shown in Table 4 and the cylinder temperature was 320 ° C. In addition, by subtracting the pressure difference ( ⁇ P 0 ) in the extension flow zone from the pressure difference ( ⁇ P) in front of the twist kneading disc, the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- thermoplastic resin (A) and the resin (B) having a reactive functional group as shown in Table 5 melt-kneading was carried out in the same manner as in Example 1.
- the pressure difference ( ⁇ P 0 ) in the extension flow zone was obtained by subtracting the pressure difference ( ⁇ P 0 ) in the extension flow zone from the pressure difference ( ⁇ P) in front of the twist kneading disc, the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- Examples 26-27 Melt kneading was carried out in the same manner as in Example 1 except that the thermoplastic resin (A) and the resin (B) having a reactive functional group were used as shown in Table 6 and the cylinder temperature was 280 ° C.
- the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- Example 28 As other additives (E), heat-resistant agents (E-1: IR1098, manufactured by Ciba Specialty Chemicals) (E-2: IR1010, manufactured by Ciba Specialty Chemicals) were used as shown in Table 6 and Examples In the same manner as in No. 1, melt kneading was performed.
- E-1 heat-resistant agents
- E-2 IR1010, manufactured by Ciba Specialty Chemicals
- Example 29 As other additives (E), a heat resistance agent (E-1: IR1098, manufactured by Ciba Specialty Chemicals) (E-2: IR1010, manufactured by Ciba Specialty Chemicals) and a release agent (E-3: Rico) Using the wax OP (manufactured by Clariant Japan) as shown in Table 6, melt-kneading was carried out in the same manner as in Example 1.
- E-1 heat resistance agent
- E-2 IR1010, manufactured by Ciba Specialty Chemicals
- E-3 Rico
- the inflow effect pressure drop before and after the kneading zone was determined by subtracting the pressure difference ( ⁇ P 0 ) in the kneading zone from the pressure difference ( ⁇ P) before the kneading disc. It was less than 2 .
- the inflow effect pressure drop before and after the kneading zone was determined by subtracting the pressure difference ( ⁇ P 0 ) in the kneading zone from the pressure difference ( ⁇ P) before the kneading disc. It was less than 2 .
- test specimens for evaluation were prepared under the following conditions, and various characteristics were evaluated.
- Example 28 is 280 ° C.
- Example 18 is 320 ° C.
- mold temperature 80 ° C.
- injection pressure lower limit pressure + 5 kgf / cm 2 JIS-5A dumbbell type test piece (length 75 mm (effective measurement length 50 mm)) X end width 12.5 mm (effective measurement width 4 mm) x thickness 2 mm), and used for a tensile tester (Tensilon UTA-2.5T) manufactured by Orientec Co., Ltd., the distance between chucks is 50 mm, 100 mm / min
- the tensile test was carried out at a speed of 500 mm / min and 1000 mm / min, and the tensile elastic modulus and the tensile elongation at break at each speed were evaluated.
- the tensile elongation at break was the elongation at break based on an effective measurement length of 50 mm.
- thermoplastic resin composition comprising a thermoplastic resin (A) and a resin (B) having a reactive functional group
- a unique viscoelasticity is obtained by melt-kneading while stretching and flowing. It was revealed that the characteristics were remarkably exhibited and the shock absorption was excellent.
- Example 30 Polybutylene terephthalate resin is used as the thermoplastic resin (A), glycidyl methacrylate-modified polyethylene copolymer is used as the resin (B) having a reactive functional group, mixed at a blending ratio shown in Table 7, and volatile matter by a vacuum pump.
- rotating complete mesh type twin screw extruder Toshiba Machine Co., Ltd., TEM-37
- melt kneading was performed at a cylinder temperature of 260 ° C., a screw rotation number and an extrusion amount shown in Table 7, and the mixture was discharged from a discharge port.
- the coloring agent was added together with the raw materials, and the time during which the coloring of the extrudate was maximized was measured as the residence time.
- the residence time is shown in Table 7.
- the ratio (%) of the total length of the zone (extension flow zone) in which melt kneading while stretching and flowing with respect to the total length of the screw is defined as (total length of extension flow zone) / (total length of screw) ⁇ 100, 19 %.
- a twist kneading disk having a spiral angle ⁇ of 20 ° in the half-rotation direction of the screw was provided (this screw configuration is A-1).
- this screw configuration is A-1.
- the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- a twist kneading disk with a 20 ° angle is provided (this screw configuration is designated as A-2), and the ratio (%) of the total length of the zone (extension flow zone) in which melt kneading is performed while stretching and flowing relative to the total length of the screw is 9
- Melting and kneading was carried out in the same manner as in Example 30 except that the content was set to 0.5%.
- the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- a zone in which a resin passage (clearance is reduced to 3.5 mm or 1 mm) is provided this screw configuration is designated as B), and a melt kneading zone (extension flow zone) while extending and flowing over the entire length of the screw ) was subjected to melt-kneading in the same manner as in Example 30 except that the ratio (%) of the total length was 19%. Further, by subtracting the pressure difference ( ⁇ P 0 ) in the extension flow zone from the pressure difference ( ⁇ P) in front of the twist kneading disc, the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- Example 33 Melt kneading was performed in the same manner as in Example 30 except that polyphenylene sulfide resin was used as the thermoplastic resin (A) and the cylinder temperature was 310 ° C.
- thermoplastic resin (A) and the resin (B) having a reactive functional group as shown in Table 8 and carrying out melt-kneading in the same manner as in Example 30, except that only the cylinder temperature of Example 38 was 220 ° C. did.
- the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- the inflow effect pressure drop before and after the kneading zone was determined by subtracting the pressure difference ( ⁇ P 0 ) in the kneading zone from the pressure difference ( ⁇ P) before the kneading disc. It was less than 2 .
- the inflow effect pressure drop before and after the kneading zone was determined by subtracting the pressure difference ( ⁇ P 0 ) in the kneading zone from the pressure difference ( ⁇ P) before the kneading disc. It was less than 2 .
- the inflow effect pressure drop before and after the kneading zone was determined by subtracting the pressure difference ( ⁇ P 0 ) in the kneading zone from the pressure difference ( ⁇ P) before the kneading disc. It was less than 2 .
- test specimens for evaluation were prepared under the following conditions, and various characteristics were evaluated.
- thermoplastic resin composition comprising a thermoplastic resin (A) and a resin (B) having a reactive functional group, by kneading while being stretched and flowing, impact resistance is achieved. It was clarified that it was excellent in heat resistance and heat resistance, remarkably developed unique viscoelastic properties, and excellent in shock absorption.
- Example 41 Table 11 shows a polyamide resin as the thermoplastic resin (A), a polyphenylene ether resin as the thermoplastic resin (C), and a styrene-maleic anhydride copolymer as the compound (D) having a reactive functional group.
- the ratio (%) of the total length of the zone (extension flow zone) in which melt kneading while stretching and flowing with respect to the total length of the screw is defined as (total length of extension flow zone) / (total length of screw) ⁇ 100, 19 %.
- a twist kneading disk having a spiral angle ⁇ of 20 ° in the half-rotation direction of the screw was provided (this screw configuration is A-1).
- the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- a twist kneading disk with a 20 ° angle is provided (this screw configuration is designated as A-2), and the ratio (%) of the total length of the zone (extension flow zone) in which melt kneading is performed while stretching and flowing relative to the total length of the screw is 9
- Melting and kneading was carried out in the same manner as in Example 41 except that the content was changed to 0.5%.
- the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- a zone in which a resin passage (clearance is reduced to 3.5 mm or 1 mm) is provided this screw configuration is designated as B), and a melt kneading zone (extension flow zone) while extending and flowing over the entire length of the screw ) was subjected to melt kneading in the same manner as in Example 41 except that the ratio (%) of the total length was 19%. Further, by subtracting the pressure difference ( ⁇ P 0 ) in the extension flow zone from the pressure difference ( ⁇ P) in front of the twist kneading disc, the inflow effect pressure drop before and after the extension flow zone was obtained. cm 2 .
- the ratio (%) of the total length of the kneading disc (shearing zone, kneading zone) to the total screw length is defined as (total kneading zone length) / (total screw length) ⁇ 100, 16% It was.
- melt kneading zones this screw configuration is designated as D
- a zone extension flow zone
- melt kneading was carried out in the same manner as in Example 41 except that the total length ratio (%) was 0%, and melt kneading was performed without stretching and kneading while stretching and flowing.
- the inflow effect pressure drop before and after the kneading zone was determined by subtracting the pressure difference ( ⁇ P 0 ) in the kneading zone from the pressure difference ( ⁇ P) before the kneading disc. It was less than 2 .
- test specimens for evaluation were prepared under the following conditions, and various characteristics were evaluated.
- thermoplastic resin composition comprising a thermoplastic resin (A), a thermoplastic resin (C), and a compound (D) having a reactive functional group was prepared, and melt-kneaded while stretching and flowing. As a result, it was revealed that the material is excellent in impact resistance and heat resistance.
- thermoplastic resin composition containing a compound having a reactive functional group When a thermoplastic resin composition containing a compound having a reactive functional group is produced by reactive processing, by melting and kneading while stretching and flowing, characteristics (heat resistance, A thermoplastic resin composition having a balance of impact resistance, etc., and a unique viscoelastic property that the higher the deformation rate is, the lower the elastic modulus is and the softer it is, the more pronounced it is. Even when it is received, it becomes possible to produce a thermoplastic resin composition having a shock absorbing characteristic that absorbs a large energy without causing a breakage because the maximum load applied to the object is low.
Abstract
Description
(1)下記(I)または(II)の熱可塑性樹脂組成物を製造する際、伸張流動しつつ溶融混練することを特徴とする熱可塑性樹脂組成物の製造方法、
(I)熱可塑性樹脂(A)および反応性官能基を有する樹脂(B)を配合してなる熱可塑性樹脂組成物
(II)熱可塑性樹脂(A)、熱可塑性樹脂(A)とは異なる熱可塑性樹脂(C)および反応性官能基を有する化合物(D)を配合してなる熱可塑性樹脂組成物、
(2)熱可塑性樹脂組成物を製造する際、押出機により溶融混練し、伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の前後での流入効果圧力降下が10~1000kg/cm2であることを特徴とする上記(1)記載の熱可塑性樹脂組成物の製造方法、
(3)熱可塑性樹脂組成物を製造する際、押出機により溶融混練し、さらに押出機のスクリューの全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計の長さの割合が、5~60%であることを特徴とする上記(1)~(2)いずれか記載の熱可塑性樹脂組成物の製造方法、
(4)押出機のスクリューにおける一つの伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の長さをLkとし、スクリュー直径をDとすると、Lk/D=0.2~10を満たすことを特徴とする上記(3)記載の熱可塑性樹脂組成物の製造方法、
(5)熱可塑性樹脂(A)が、ポリアミド樹脂、ポリエステル樹脂、ポリフェニレンスルフィド樹脂、ポリアセタール樹脂、スチレン系樹脂、ポリフェニレンオキシド樹脂、ポリカーボネート樹脂、ポリ乳酸樹脂、およびポリプロピレン樹脂から選ばれる少なくとも1種であることを特徴とする上記(1)~(4)のいずれか記載の熱可塑性樹脂組成物の製造方法、
(6)熱可塑性樹脂(C)が、熱可塑性樹脂(A)とは異なる、ポリアミド樹脂、ポリエステル樹脂、ポリフェニレンスルフィド樹脂、ポリアセタール樹脂、スチレン系樹脂、ポリフェニレンオキシド樹脂、ポリカーボネート樹脂、ポリ乳酸樹脂、およびポリプロピレン樹脂から選ばれる少なくとも1種であることを特徴とする上記(1)~(5)のいずれか記載の熱可塑性樹脂組成物の製造方法、
(7)反応性官能基を有する樹脂(B)が、反応性官能基を有するゴム質重合体であることを特徴とする上記(1)~(6)のいずれか記載の熱可塑性樹脂組成物の製造方法、
(8)反応性官能基を有する樹脂(B)の反応性官能基が、アミノ基、カルボキシル基、カルボキシル金属塩、エポキシ基、酸無水物基、およびオキサゾリン基から選ばれる少なくとも1種であることを特徴とする上記(1)~(7)のいずれか記載の熱可塑性樹脂組成物の製造方法、
(9)反応性官能基を有する化合物(D)の反応性官能基が、アミノ基、カルボキシル基、カルボキシル金属塩、エポキシ基、酸無水物基、およびオキサゾリン基から選ばれる少なくとも1種であることを特徴とする上記(1)~(8)のいずれか記載の熱可塑性樹脂組成物の製造方法、
(10)熱可塑性樹脂(A)が、ポリアミド樹脂であることを特徴とする上記(1)~(9)のいずれか記載の熱可塑性樹脂組成物の製造方法、
(11)熱可塑性樹脂組成物が、引張試験において、引張速度V1、V2のときの引張弾性率をE(V1)、E(V2)とすると、V1<V2のとき、E(V1)>E(V2)であることを特徴とする上記(1)~(10)のいずれか記載の熱可塑性樹脂組成物の製造方法、
(12)熱可塑性樹脂組成物が、引張試験において、引張速度V1、V2のときの引張破断伸度をε(V1)、ε(V2)とすると、V1<V2のとき、ε(V1)<ε(V2)であることを特徴とする上記(1)~(11)のいずれか記載の熱可塑性樹脂組成物の製造方法であり、また
(13)上記(1)~(9)のいずれか記載の製造方法により得られる熱可塑性樹脂組成物であり、また
(14)上記(13)記載の熱可塑性樹脂組成物からなる成形品であり、また
(15)成形品がフィルムまたはシートである上記(14)記載の成形品である。
(I)熱可塑性樹脂(A)および反応性官能基を有する樹脂(B)からなる熱可塑性樹脂組成物または
(II)熱可塑性樹脂(A)、熱可塑性樹脂(A)とは異なる熱可塑性樹脂(C)および反応性官能基を有する化合物(D)からなる熱可塑性樹脂組成物である。
特に断りのない限り、原料は下記に記したものを使用した。
A-1:ポリアミド樹脂(ポリアミド6) 「CM1017」(東レ社製)
A-2:融点225℃、98%硫酸中0.01g/mlでの相対粘度2.35のポリアミド6樹脂
A-3:ポリアミド樹脂(ポリアミド66)「CM3001N」(東レ社製)
A-4:下記参考例1で得られたポリアミド56樹脂
A-5:下記参考例2で得られたポリアミド6T/66樹脂
A-6:下記参考例3で得られたポリアミド66/6I/6樹脂
A-7:ポリブチレンテレフタレート樹脂 「1401」(東レ社製)
A-8:ポリフェニレンスルフィド樹脂 「A900」(東レ社製)
A-9:ポリエチレンテレフタレート樹脂 「SA-135」(三井化学社製)
A-10:芳香族ポリカーボネート樹脂 「タフロン A2500」(出光興産社製)
A-11:融点170℃、重量平均分子量21万(ゲルパーミエーションクロマトグラフィー法、1,1,1,3,3,3-ヘキサフルオロ-2-プロパノール溶離液、PMMA換算)、D体含有率1.2%のポリL乳酸樹脂。
A-12:ポリフェニレンエーテル樹脂「PX-100F」(三菱エンジニアリングプラスチックス社製)
A-13:融点160℃、MFR=0.5g/10分(230℃、2.16kg荷重)、密度0.910g/cm3のポリプロピレン樹脂100重量部と無水マレイン酸1重量部とラジカル発生剤(パーヘキサ25B:日本油脂製)0.1重量部をドライブレンドし、シリンダー温度230℃で溶融混練して得た水分率100ppmのポリプロピレン樹脂。
B-1:グリシジルメタクリレート変性ポリエチレン共重合体「ボンドファースト BF-7L」(住友化学社製)
B-2:グリシジルメタクリレート変性ポリエチレン共重合体「ボンドファースト BF-7M」(住友化学社製)
B-3:グリシジルメタクリレート変性ポリエチレン共重合体「ボンドファースト BF-E」(住友化学社製)
B-4:無水マレイン酸変性エチレン-1-ブテン共重合体「タフマー MH7020」(三井化学社製)
B-5:エチレン-メタクリル酸-メタクリル酸亜鉛塩共重合体「ハイミラン1706」(三井・デュポンポリケミカル社製)
C-1:エチレン・1-ブテン共重合体「タフマー TX-610」(三井化学社製)
C-2:未変性ポリエチレン共重合体「LOTRYL29MA03」(アルケマ社製)
C-3:ポリフェニレンエーテル樹脂「PX-100F」(三菱エンジニアリングプラスチックス社製)
D-1:スチレン-無水マレイン酸共重合体「ダイラーク332」(ノヴァケミカル社製)
E-1:耐熱剤「IR1098」(チバ・スペシャリティ・ケミカルズ社製)
E-2:耐熱剤「IR1010」(チバ・スペシャリティ・ケミカルズ社製)
E-3:離型剤「リコワックスOP」(クラリアントジャパン社製)。
1,5-ジアミノペンタンとアジピン酸の等モル塩(56塩)の50重量%水溶液に、1,5-ジアミノペンタンを14倍mol/kmol塩添加して重合缶に仕込み、重合缶内を充分に窒素置換した後、撹拌しながら加温を開始した。缶内圧力が17.5kg/cm2に到達した後、水分を系外へ放出させながら、缶内圧力を17.5kg/cm2で一定に保った。この状態で2時間保持した後、1時間かけて徐々に常圧に戻し到達温度を270℃とした。更に-160mmHgの減圧下、270℃で30分間反応させ重合を完了した。その後水浴中に吐出したポリマーをストランドカッターでペレタイズしポリアミド樹脂(A-4)を得た。得られたポリアミド樹脂の98%濃硫酸中、25℃、0.01g/ml濃度で測定した相対溶液粘度は2.76であり、アミノ末端基量は8.12×10-5eq/g、カルボキシル末端基量は5.21×10-5eq/gであった。指差走査熱量計で測定したTmは254℃であった。
テレフタル酸とヘキサメチレンジアミンからなる等モル塩(6T塩)を45重量%、ヘキサメチレンジアミンとアジピン酸の等モル塩(66塩、Rhodia製)を55重量%、安息香酸(シグマアルドリッチジャパン製)を10倍mol/kmol塩、さらに全仕込量に対して水含有量が30重量%になるように、水を重合缶に仕込み、重合缶内を充分に窒素置換した後、撹拌しながら加温を開始した。缶内圧力が25kg/cm2に到達した後、水分を系外へ放出させながら、缶内圧力を25kg/cm2、240℃で2時間保持し、その後、クーリングベルト上に吐出した。これを120℃で24時間真空乾燥して低次縮合物を得、得られた低次縮合物を240℃、0.3torrで3時間固相重合しポリアミド樹脂(A-5)を得た。得られたポリアミド樹脂の98%濃硫酸中、25℃、0.01g/ml濃度で測定した相対溶液粘度は2.6であった。指差走査熱量計で測定したTmは290℃であった。
ヘキサメチレンジアミンとアジピン酸の等モル塩(66塩)を75重量%、ヘキサメチレンジアミンとイソフタル酸の等モル塩(6I塩)を20wt%、およびεカプロラクタム5重量%、さらに全仕込量に対して水含有量が50重量%になるように水を重合缶に仕込み、重合缶内を充分に窒素置換した後、撹拌しながら加温を開始した。缶内圧力が20kg/cm2に到達した後、水分を系外へ放出させながら、缶内圧力を20kg/cm2で一定に保った。この状態で2時間保持した後、1時間かけて徐々に常圧に戻し到達温度を270℃とした。更に-160mmHgの減圧下、270℃で10分間反応させ重合を完了した。その後水浴中に吐出したポリマーをストランドカッターでペレタイズしポリアミド樹脂(A-6)を得た。得られたポリアミドの98重量%濃硫酸中、25℃、0.01g/ml濃度で測定した相対溶液粘度は2.03であった。指差走査熱量計で測定した融点は233℃であった。
熱可塑性樹脂(A)としてポリアミド6(A-1:CM1017、東レ社製)、反応性官能基を有する樹脂(B)としてグリシジルメタクリレート変性ポリエチレン共重合体(B-1)を使用し、表1に示す配合割合で混合し、真空ポンプによる揮発分の除去および窒素フローを行いながら、スクリュー径30mm、L/D=45の同方向回転完全噛み合い型二軸押出機(日本製鋼所社製、TEX-30α):スクリューは2条ネジの2本のスクリューを使用し、シリンダー温度を260℃、表1に示すスクリュー回転数、押出量で溶融混練を行い、吐出口より吐出した。その際、原料と共に着色剤を投入し、押出物への着色が最大となる時間を滞留時間として測定し、その滞留時間を表1に示した。また、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を、(伸張流動ゾーンの合計長さ)÷(スクリュー全長)×100と定義し、29%とした。また、スクリュー構成として、L/D=14、23、30の位置から、それぞれ、Lk/D=4.0、4.0、5.0としたニーディングディスク先端側の頂部とその後面側の頂部との角度である螺旋角度θが、スクリューの半回転方向に20°としたツイストニーディングディスクを設けた(本スクリュー構成をA-1とした)。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
スクリュー構成として、L/D=14、23、30、35の位置から、Lk/D=4.0、2.0、2.0、1.0としたニーディングディスク先端側の頂部とその後面側の頂部との角度である螺旋角度θが、スクリューの半回転方向に20°としたツイストニーディングディスクを設け(本スクリュー構成をA-2とした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を20%とした以外は、実施例1と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、180kg/cm2であった。
熱可塑性樹脂(A)としてポリアミド6(A-1:CM1017、東レ社製)、反応性官能基を有する樹脂(B)としてグリシジルメタクリレート変性ポリエチレン共重合体を使用し、表1に示す配合割合で混合し、真空ポンプによる揮発分の除去および窒素フローを行いながら、スクリュー径30mm、L/D=35の同方向回転完全噛み合い型二軸押出機(日本製鋼所社製、TEX-30α):スクリューは2条ネジの2本のスクリューを使用し、シリンダー温度を260℃、表1に示すスクリュー回転数、押出量で溶融混練を行い、吐出口より吐出した。その際、原料と共に着色剤を投入し、押出物への着色が最大となる時間を滞留時間として測定し、その滞留時間を表1に示した。また、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を、(伸張流動ゾーンの合計長さ)÷(スクリュー全長)×100と定義し、31%とした。また、スクリュー構成として、L/D=12、17、22の位置から、それぞれ、Lk/D=3.0、4.0、4.0としたニーディングディスク先端側の頂部とその後面側の頂部との角度である螺旋角度θが、スクリューの半回転方向に20°としたツイストニーディングディスクを設けた(本スクリュー構成をB―1とした)。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、150kg/cm2であった。
スクリュー構成として、L/D=12、17、21、25の位置から、Lk/D=3.0、2.0、2.0、1.0としたニーディングディスク先端側の頂部とその後面側の頂部との角度である螺旋角度θが、スクリューの半回転方向に20°としたツイストニーディングディスクを設け(本スクリュー構成をB-2とした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を23%とした以外は、実施例3と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、120kg/cm2であった。
熱可塑性樹脂(A)、反応性官能基を有する樹脂(B)を表2に示す通り用い、実施例1と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
熱可塑性樹脂(A)、反応性官能基を有する樹脂(B)を表3に示す通り用い、実施例1と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
熱可塑性樹脂(A)、反応性官能基を有する樹脂(B)を表4に示す通り用い、シリンダー温度を280℃とした以外は、実施例1と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
熱可塑性樹脂(A)、反応性官能基を有する樹脂(B)を表4に示す通り用い、シリンダー温度を320℃とする以外は、実施例1と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
熱可塑性樹脂(A)、反応性官能基を有する樹脂(B)を表5に示す通り用い、実施例1と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
熱可塑性樹脂(A)、反応性官能基を有する樹脂(B)を表6に示す通り用い、シリンダー温度を280℃にする以外は、実施例1と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
その他の添加剤(E)として耐熱剤(E-1:IR1098、チバ・スペシャリティ・ケミカルズ社製)(E-2:IR1010、チバ・スペシャリティ・ケミカルズ社製)を表6に示す通り用い、実施例1と同様にして溶融混練を実施した。
その他の添加剤(E)として耐熱剤(E-1:IR1098、チバ・スペシャリティ・ケミカルズ社製)(E-2:IR1010、チバ・スペシャリティ・ケミカルズ社製)と離型剤(E-3:リコワックスOP、クラリアントジャパン社製)を表6に示す通り用い、実施例1と同様にして溶融混練を実施した。
スクリュー構成として、L/D=14、23、30の位置から、一般のニーディングディスク(L/D=4.0、4.0、5.0)を設け(本スクリュー構成をC-1とした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を0%とし、伸張流動しつつ溶融混練することなく溶融混練した以外は、実施例1と同様にして溶融混練を実施した。また、ニーディングディスクの手前の圧力差(ΔP)から、ニーディングゾーン内での圧力差(ΔP0)を差し引くことで、ニーディングゾーン前後での流入効果圧力降下を求めた結果、5kg/cm2未満であった。
スクリュー構成として、L/D=22、28の位置から、一般のニーディングディスク(L/D=3.8)を設け(本スクリュー構成をC-2とした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を0%とし、伸張流動しつつ溶融混練することなく溶融混練した以外は、実施例5と同様にして溶融混練を実施した。また、ニーディングディスクの手前の圧力差(ΔP)から、ニーディングゾーン内での圧力差(ΔP0)を差し引くことで、ニーディングゾーン前後での流入効果圧力降下を求めた結果、5kg/cm2未満であった。
反応性官能基を有する樹脂(B)の替わりに、反応性官能基を有さない樹脂(C)を表6に示す通り用いた以外は、実施例1と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
住友重機械工業社製射出成形機(SG75H-MIV)を用いて、成形温度:260℃(実施例10、14~17、27~28は280℃、実施例18は320℃)、金型温度:80℃、射出圧力:下限圧+5kgf/cm2の条件により短冊型試験片(幅10mm×長さ80mm×厚さ4mm)を作成し、東洋精機社製シャルピー衝撃試験機611に供し、ISO179に従い、23℃、50%RHにおけるシャルピー衝撃試験を実施した。
住友重機械工業社製射出成形機(SG75H-MIV)を用いて、成形温度:260℃(実施例10、14~17、27~28は280℃、実施例18は320℃)、金型温度:80℃、射出圧力:下限圧+5kgf/cm2の条件により短冊型試験片(幅10mm×長さ80mm×厚さ4mm)を作成し、23℃、50%RHの条件で48時間調湿したサンプルについて、ISO75-1,2に従い荷重たわみ温度(荷重0.45MPa)を測定した。
住友重機械工業社製射出成形機(SG75H-MIV)を用いて、成型温度:260℃(実施例10、14~17、27~28は280℃、実施例18は320℃)、金型温度:80℃、射出圧力:下限圧+5kgf/cm2の条件によりJIS-5Aダンベル型試験片(長さ75mm(有効測定長さ50mm)×端部幅12.5mm(有効測定幅4mm)×厚さ2mm)を作成し、オリエンテック社製引張試験機(テンシロンUTA-2.5T)に供し、チャック間距離を50mmとし、100mm/min、500mm/min、1000mm/minの速度で、引張試験を実施し、各速度における引張弾性率および引張破断伸度を評価した。なお、引張破断伸度は、有効測定長さ50mmを基準とした破断伸度とした。
熱可塑性樹脂(A)としてポリブチレンテレフタレート樹脂を、反応性官能基を有する樹脂(B)としてグリシジルメタクリレート変性ポリエチレン共重合体を使用し、表7に示す配合割合で混合し、真空ポンプによる揮発分の除去および窒素フローを行いながら、スクリュー径37mm、L/D=40の同方向回転完全噛み合い型二軸押出機(東芝機械社製、TEM-37):スクリューは2条ネジの2本のスクリューを使用し、シリンダー温度を260℃、表7に示すスクリュー回転数、押出量で溶融混練を行い、吐出口より吐出した。その際、原料と共に着色剤を投入し、押出物への着色が最大となる時間を滞留時間として測定し、その滞留時間を表7に示した。また、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を、(伸張流動ゾーンの合計長さ)÷(スクリュー全長)×100と定義し、19%とした。また、スクリュー構成として、L/D=22、28の位置から、それぞれ、Lk/D=3.8、3.8としたニーディングディスク先端側の頂部とその後面側の頂部との角度である螺旋角度θが、スクリューの半回転方向に20°としたツイストニーディングディスクを設けた(本スクリュー構成をA-1とした)。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
スクリュー構成として、L/D=28の位置から、Lk/D=3.8としたニーディングディスク先端側の頂部とその後面側の頂部との角度である螺旋角度θが、スクリューの半回転方向に20°としたツイストニーディングディスクを設け(本スクリュー構成をA-2とした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を9.5%とした以外は、実施例30と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
スクリュー構成として、L/D=22、28の位置から、それぞれ、Lk/D=3.8、3.8としたフライトスクリューのフライト部にスクリュー先端側から後端側に向けて断面積が縮小されてなる樹脂通路(クリアランスが、3.5mmか1mmに縮小)が形成されているスクリューを設け(本スクリュー構成をBとした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を19%とした以外は、実施例30と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、150kg/cm2であった。
熱可塑性樹脂(A)としてポリフェニレンスルフィド樹脂を用い、シリンダー温度を310℃とした以外は、実施例30と同様にして溶融混練を実施した。
熱可塑性樹脂(A)、反応性官能基を有する樹脂(B)を表8に示す通り用い、実施例38のみシリンダー温度を220℃とした以外は、実施例30と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
スクリュー構成として、L/D=22、28の位置から、一般のニーディングディスク(L/D=3.8)を設け(本スクリュー構成をCとした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を0%とし、伸張流動しつつ溶融混練することなく溶融混練した以外は、実施例30と同様にして溶融混練を実施した。また、ニーディングディスクの手前の圧力差(ΔP)から、ニーディングゾーン内での圧力差(ΔP0)を差し引くことで、ニーディングゾーン前後での流入効果圧力降下を求めた結果、5kg/cm2未満であった。
反応性官能基を有する樹脂(B)の替わりに、反応性官能基を有さない未変性ポリエチレンを用いた以外は、実施例30と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
スクリュー構成として、L/D=22、28の位置から、一般のニーディングディスク(L/D=3.8)を設け(本スクリュー構成をCとした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を0%とし、伸張流動しつつ溶融混練することなく溶融混練した以外は、実施例33と同様にして溶融混練を実施した。また、ニーディングディスクの手前の圧力差(ΔP)から、ニーディングゾーン内での圧力差(ΔP0)を差し引くことで、ニーディングゾーン前後での流入効果圧力降下を求めた結果、5kg/cm2未満であった。
熱可塑性樹脂(A)、反応性官能基を有する樹脂(B)を表10に示す通り用い、比較例12のみシリンダー温度を220℃とし、スクリュー構成として、L/D=22、28の位置から、一般のニーディングディスク(L/D=3.8)を設け(本スクリュー構成をCとした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を0%とし、伸張流動しつつ溶融混練することなく溶融混練した以外は、実施例34~40と同様にして溶融混練を実施した。また、ニーディングディスクの手前の圧力差(ΔP)から、ニーディングゾーン内での圧力差(ΔP0)を差し引くことで、ニーディングゾーン前後での流入効果圧力降下を求めた結果、5kg/cm2未満であった。
日精樹脂工業社製射出成形機(NP7-1F)を用いて、成形温度:260℃(実施例33、比較例7は310℃)、金型温度:80℃(実施例33,比較例7は130℃)、射出圧力:下限圧+5kgf/cm2の条件により短冊型試験片(幅10mm×長さ80mm×厚さ4mm)を作成し、東洋精機社製シャルピー衝撃試験機611に供し、ISO179に従い、23℃、50%RHにおけるシャルピー衝撃試験を実施した。
日精樹脂工業社製射出成形機(NP7-1F)を用いて、成形温度:260℃(実施例33、比較例7は310℃)、金型温度:80℃(実施例33,比較例7は130℃)、射出圧力:下限圧+5kgf/cm2の条件により短冊型試験片(幅10mm×長さ80mm×厚さ4mm)を作成し、23℃、50%RHの条件で48時間調湿したサンプルについて、ISO75-1,2に従い荷重撓み温度(荷重0.45MPa)を測定した。
日精樹脂工業社製射出成形機(NP7-1F)を用いて、成形温度:260℃、金型温度:80℃、射出圧力:下限圧+5kgf/cm2の条件によりJIS-5Aダンベル型試験片(長さ75mm(有効測定長さ50mm)×端部幅12.5mm(有効測定幅4mm)×厚さ2mm)を作成し、オリエンテック社製引張試験機(テンシロンUTA-2.5T)に供し、チャック間距離を50mmとし、100mm/min、500mm/min、1000mm/minの速度で、引張試験を実施し、各速度における引張弾性率および引張破断伸度を評価した。なお、引張破断伸度は、有効測定長さ50mmを基準とした破断伸度とした。
熱可塑性樹脂(A)としてポリアミド樹脂を、熱可塑性樹脂(C)としてポリフェニレンエーテル樹脂を、反応性官能基を有する化合物(D)としてスチレン-無水マレイン酸共重合体を使用し、表11に示す配合割合で混合し、真空ポンプによる揮発分の除去および窒素フローを行いながら、スクリュー径37mm、L/D=40の同方向回転完全噛み合い型二軸押出機(東芝機械社製、TEM-37):スクリューは2条ネジの2本のスクリューを使用し、シリンダー温度を290℃、表11に示すスクリュー回転数、押出量で溶融混練を行い、吐出口より吐出した。その際、原料と共に着色剤を投入し、押出物への着色が最大となる時間を滞留時間として測定し、その滞留時間を表11に示した。また、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を、(伸張流動ゾーンの合計長さ)÷(スクリュー全長)×100と定義し、19%とした。また、スクリュー構成として、L/D=22、28の位置から、それぞれ、Lk/D=3.8、3.8としたニーディングディスク先端側の頂部とその後面側の頂部との角度である螺旋角度θが、スクリューの半回転方向に20°としたツイストニーディングディスクを設けた(本スクリュー構成をA-1とした)。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
スクリュー構成として、L/D=28の位置から、Lk/D=3.8としたニーディングディスク先端側の頂部とその後面側の頂部との角度である螺旋角度θが、スクリューの半回転方向に20°としたツイストニーディングディスクを設け(本スクリュー構成をA-2とした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を9.5%とした以外は、実施例41と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、200kg/cm2であった。
スクリュー構成として、L/D=22、28の位置から、それぞれ、Lk/D=3.8、3.8としたフライトスクリューのフライト部にスクリュー先端側から後端側に向けて断面積が縮小されてなる樹脂通路(クリアランスが、3.5mmか1mmに縮小)が形成されているスクリューを設け(本スクリュー構成をBとした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を19%とした以外は、実施例41と同様にして溶融混練を実施した。また、ツイストニーディングディスクの手前の圧力差(ΔP)から、伸張流動ゾーン内での圧力差(ΔP0)を差し引くことで、伸張流動ゾーン前後での流入効果圧力降下を求めた結果、150kg/cm2であった。
真空ポンプによる揮発分の除去および窒素フローを行いながら、スクリュー径37mm、L/D=100の同方向回転完全噛み合い型二軸押出機(東芝機械社製、TEM-37BS-26/2V):スクリューは2条ネジの2本のスクリューを使用し、シリンダー温度を290℃、表11に示すスクリュー回転数、押出量で溶融混練を行い、吐出口より吐出した。その際、原料と共に着色剤を投入し、押出物への着色が最大となる時間を滞留時間として測定し、その滞留時間を表11に示した。また、スクリュー全長に対するニーディングディスク(剪断賦与ゾーン、ニーディングゾーン)の合計長さの割合(%)を、(ニーディングゾーンの合計長さ)÷(スクリュー全長)×100と定義し、16%とした。また、スクリュー構成として、L/D=22、28、43、55、69、77、93の位置から、それぞれ、Lk/D=1.8、1.8、2.3、2.3、2.3、2.3、3.0とした剪断賦与ゾーン(ニーディングゾーン)を設けた(本スクリュー構成をDとした)、スクリュー全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計長さの割合(%)を0%とし、伸張流動しつつ溶融混練することなく溶融混練した以外は、実施例41と同様にして溶融混練を実施した。また、ニーディングディスクの手前の圧力差(ΔP)から、ニーディングゾーン内での圧力差(ΔP0)を差し引くことで、ニーディングゾーン前後での流入効果圧力降下を求めた結果、5kg/cm2未満であった。
日精樹脂工業社製射出成形機(NP7-1F)を用いて、成形温度:290℃、金型温度:80℃、射出圧力:下限圧+5kgf/cm2の条件により短冊型試験片(幅10mm×長さ80mm×厚さ4mm)を作成し、東洋精機社製シャルピー衝撃試験機611に供し、ISO179に従い、23℃、50%RHにおけるシャルピー衝撃試験を実施した。
日精樹脂工業社製射出成形機(NP7-1F)を用いて、成形温度:290℃、金型温度:80℃、射出圧力:下限圧+5kgf/cm2の条件により短冊型試験片(幅10mm×長さ80mm×厚さ4mm)を作成し、23℃、50%RHの条件で48時間調湿したサンプルについて、ISO75-1,2に従い荷重撓み温度(荷重1.80MPa)を測定した。
Claims (15)
- 下記(I)または(II)の熱可塑性樹脂組成物を製造する際、伸張流動しつつ溶融混練することを特徴とする熱可塑性樹脂組成物の製造方法。
(I)熱可塑性樹脂(A)および反応性官能基を有する樹脂(B)を配合してなる熱可塑性樹脂組成物
(II)熱可塑性樹脂(A)、熱可塑性樹脂(A)とは異なる熱可塑性樹脂(C)および反応性官能基を有する化合物(D)を配合してなる熱可塑性樹脂組成物 - 熱可塑性樹脂組成物を製造する際、押出機により溶融混練し、伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の前後での流入効果圧力降下が10~1000kg/cm2であることを特徴とする請求項1記載の熱可塑性樹脂組成物の製造方法。
- 熱可塑性樹脂組成物を製造する際、押出機により溶融混練し、さらに押出機のスクリューの全長に対する伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の合計の長さの割合が、5~60%であることを特徴とする請求項1~2いずれか記載の熱可塑性樹脂組成物の製造方法。
- 押出機のスクリューにおける一つの伸張流動しつつ溶融混練するゾーン(伸張流動ゾーン)の長さをLkとし、スクリュー直径をDとすると、Lk/D=0.2~10を満たすことを特徴とする請求項3記載の熱可塑性樹脂組成物の製造方法。
- 熱可塑性樹脂(A)が、ポリアミド樹脂、ポリエステル樹脂、ポリフェニレンスルフィド樹脂、ポリアセタール樹脂、スチレン系樹脂、ポリフェニレンオキシド樹脂、ポリカーボネート樹脂、ポリ乳酸樹脂、およびポリプロピレン樹脂から選ばれる少なくとも1種であることを特徴とする請求項1~4のいずれか記載の熱可塑性樹脂組成物の製造方法。
- 熱可塑性樹脂(C)が、熱可塑性樹脂(A)とは異なる、ポリアミド樹脂、ポリエステル樹脂、ポリフェニレンスルフィド樹脂、ポリアセタール樹脂、スチレン系樹脂、ポリフェニレンオキシド樹脂、ポリカーボネート樹脂、ポリ乳酸樹脂、およびポリプロピレン樹脂から選ばれる少なくとも1種であることを特徴とする請求項1~5のいずれか記載の熱可塑性樹脂組成物の製造方法。
- 反応性官能基を有する樹脂(B)が、反応性官能基を有するゴム質重合体であることを特徴とする請求項1~6のいずれか記載の熱可塑性樹脂組成物の製造方法。
- 反応性官能基を有する樹脂(B)の反応性官能基が、アミノ基、カルボキシル基、カルボキシル金属塩、エポキシ基、酸無水物基、およびオキサゾリン基から選ばれる少なくとも1種であることを特徴とする請求項1~7のいずれか記載の熱可塑性樹脂組成物の製造方法。
- 反応性官能基を有する化合物(D)の反応性官能基が、アミノ基、カルボキシル基、カルボキシル金属塩、エポキシ基、酸無水物基、およびオキサゾリン基から選ばれる少なくとも1種であることを特徴とする請求項1~8のいずれか記載の熱可塑性樹脂組成物の製造方法。
- 熱可塑性樹脂(A)が、ポリアミド樹脂であることを特徴とする請求項1~9のいずれか記載の熱可塑性樹脂組成物の製造方法。
- 熱可塑性樹脂組成物が、引張試験において、引張速度V1、V2のときの引張弾性率をE(V1)、E(V2)とすると、V1<V2のとき、E(V1)>E(V2)であることを特徴とする請求項1~10のいずれか記載の熱可塑性樹脂組成物の製造方法。
- 熱可塑性樹脂組成物が、引張試験において、引張速度V1、V2のときの引張破断伸度をε(V1)、ε(V2)とすると、V1<V2のとき、ε(V1)<ε(V2)であることを特徴とする請求項1~11のいずれか記載の熱可塑性樹脂組成物の製造方法。
- 請求項1~9のいずれか記載の製造方法により得られる熱可塑性樹脂組成物。
- 請求項13記載の熱可塑性樹脂組成物からなる成形品。
- 成形品がフィルムまたはシートである請求項14記載の成形品。
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Publication number | Publication date |
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EP2270073A4 (en) | 2012-02-29 |
TW200948880A (en) | 2009-12-01 |
CN102046704B (zh) | 2013-11-20 |
JPWO2009119624A1 (ja) | 2011-07-28 |
US20110021707A1 (en) | 2011-01-27 |
EP2270073B1 (en) | 2013-05-22 |
TWI448498B (zh) | 2014-08-11 |
JP4788824B2 (ja) | 2011-10-05 |
CN102046704A (zh) | 2011-05-04 |
KR101097137B1 (ko) | 2011-12-22 |
US8188188B2 (en) | 2012-05-29 |
KR20100131489A (ko) | 2010-12-15 |
EP2270073A1 (en) | 2011-01-05 |
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