WO2015046324A1 - ポリアリーレンスルフィド樹脂組成物 - Google Patents
ポリアリーレンスルフィド樹脂組成物 Download PDFInfo
- Publication number
- WO2015046324A1 WO2015046324A1 PCT/JP2014/075418 JP2014075418W WO2015046324A1 WO 2015046324 A1 WO2015046324 A1 WO 2015046324A1 JP 2014075418 W JP2014075418 W JP 2014075418W WO 2015046324 A1 WO2015046324 A1 WO 2015046324A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pas
- mol
- polyarylene sulfide
- less
- polymerization
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/04—Polysulfides
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
-
- 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
-
- 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
-
- 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
Definitions
- the present invention relates to a polyarylene sulfide resin composition having dramatically improved mechanical properties and chemical resistance while maintaining the inherently high melting point of polyarylene sulfide.
- Polyarylene sulfide typified by polyphenylene sulfide (hereinafter abbreviated as PPS)
- PAS polyphenylene sulfide
- PPS polyphenylene sulfide
- properties suitable as engineering plastics such as excellent heat resistance, barrier properties, chemical resistance, electrical insulation properties, and heat and moisture resistance. It is used for various electrical / electronic parts, machine parts, automobile parts, films, fibers, etc. mainly for injection molding and extrusion molding.
- fillers are often added to develop various properties such as increasing strength and improving electrical properties.
- a reactive compound such as a coupling agent
- a filler in order to increase the strength, it is widely known to add a reactive compound such as a coupling agent together with a filler in order to maximize the reinforcing effect.
- dichlorobenzene which is a general production method of PPS, which is a representative of PAS
- PAS a reactive compound
- PAS itself is a polymer having excellent chemical resistance.
- a resin composition has low adhesiveness to a filler, there is a problem that mechanical properties are significantly lowered after chemical treatment.
- Patent Document 1 discloses that mechanical properties are improved by selectively using a PAS having a specific carboxyl group.
- Patent Document 2 a physical property is improved by introducing a reactive functional group into PPS, and a modifier selected from a compound having a carboxyl group and a mercapto group or disulfide group in the molecule is reacted at the time of melt kneading.
- a manufacturing method for preparing a carboxyl group-containing PPS is disclosed.
- Patent Document 3 and Patent Document 4 for the purpose of improving adhesion with metal and compatibility with other polymers, a carboxyl group is introduced by heating and reacting a previously prepared amino group-containing PAS with phthalic acid chloride or acid anhydride. A method is disclosed.
- JP 2001-279097 A Japanese Patent Laid-Open No. 5-170907 (Claims) JP-A-4-018422 (Claims) JP-A-4-372624 (Claims)
- the present invention has been accomplished as a result of studying as a subject to obtain a polyarylene sulfide resin composition having dramatically improved mechanical properties and chemical resistance while maintaining the inherently high melting point of polyarylene sulfide.
- the present invention is as follows.
- the PAS in the present invention is a homopolymer or copolymer having a repeating unit of the formula, — (Ar—S) —, as a main constituent unit.
- the main structural unit means that 80% by mole or more of the repeating unit is contained in all the structural units constituting the PAS.
- the Ar is exemplified by any unit represented by the following formulas (A) to (K), among which the unit represented by the formula (A) is particularly preferable.
- R1 and R2 are substituents selected from hydrogen, an alkyl group, an alkoxy group, a halogen group, and a carboxyl group, and R1 and R2 may be the same or different.
- this repeating unit is a main constituent unit, it can contain a small amount of branching units or crosslinking units represented by the following formulas (L) to (N).
- the copolymerization amount of these branched units or cross-linked units is preferably in the range of 0 to 1 mol% with respect to 1 mol of — (Ar—S) — units.
- the PAS in the present invention may be any of a random copolymer, a block copolymer and a mixture thereof containing the above repeating unit.
- the p-arylene sulfide unit of the formula (A) is preferably 90 mol% or more, more preferably 95 mol% or more, and even more preferably 98 mol% or more as a repeating unit of PAS. It is preferable for maintaining a high melting point. If the p-arylene sulfide unit is less than 90 mol%, that is, if the o-arylene sulfide unit or m-arylene sulfide unit is increased, the high melting point inherent in PAS tends to decrease and the mechanical properties tend to decrease, such being undesirable.
- PASs include polyphenylene sulfide, polyphenylene sulfide sulfone, polyphenylene sulfide ether, polyphenylene sulfide ketone, random copolymers thereof, block copolymers, and mixtures thereof.
- Particularly preferred PASs include p-phenylene sulfide units as the main structural unit of the polymer.
- the carboxyl group contained in PAS may be introduced into an arylene sulfide unit constituting the main skeleton of PAS or introduced into an aryl sulfide unit constituting the terminal.
- the carboxyl group has a structure directly bonded to an arylene sulfide unit or an aryl sulfide unit, an amino group, an amide group, an ester group, an imide group, an alkyl group, an alkoxy group, a phenylene group are bonded to the arylene sulfide unit or the aryl sulfide unit.
- a structure indirectly bonded through a group or the like may also be used.
- a structure in which a carboxyl group is directly bonded to an arylene sulfide unit of PAS, or a structure in which a carboxyl group is directly or indirectly bonded to an aryl sulfide unit constituting the terminal of PAS is preferable.
- the p-phenylene sulfide unit such as 2,5-benzoic acid sulfide unit, is more preferable from the viewpoint of a high melting point and excellent mechanical properties. preferable.
- the resin composition of the present invention needs to contain PAS having a carboxyl group content of more than 100 ⁇ mol / g and less than 400 ⁇ mol / g.
- the structure in which the carboxyl group is directly bonded to the arylene sulfide unit or aryl sulfide unit of PAS among the total carboxyl groups is preferably 80 ⁇ mol / g or more and less than 380 ⁇ mol / g. 100 ⁇ mol / g or more and less than 300 ⁇ mol / g is more preferable.
- a structure in which a carboxyl group is indirectly bonded to an arylene sulfide unit or aryl sulfide unit of PAS via an amino group, an amide group, an ester group, an imide group, an alkyl group, an alkoxy group, a phenylene group, or the like has a high melting point or From the viewpoint of excellent mechanical properties, a smaller amount is preferable, but if it is less than 90 ⁇ mol / g, it is preferable for practical use, and less than 50 ⁇ mol / g is more preferable.
- PAS resin PAS resin
- B filler
- C olefin copolymer
- D alkoxysilane compound
- E alkoxysilane compound
- PAS resin used in the polyarylene sulfide resin composition of the present invention is a PAS resin having a carboxyl group content of more than 100 ⁇ mol / g and less than 400 ⁇ mol / g and a weight average molecular weight of 10,000 or more and less than 100,000.
- the PAS resin can be prepared by a polymerization reaction.
- the adjusting agent, polymerization stabilizer, dehydration step, polymerization step, polymer recovery, and produced PAS will be described in this order.
- (A-1) Sulfiding agent examples include alkali metal sulfides, alkali metal hydrosulfides, and hydrogen sulfide.
- Alkali metal sulfides, alkali metal hydrosulfides, and mixtures thereof are preferably used from the viewpoints of handleability and versatility.
- the sulfiding agent can be used as a hydrate or aqueous mixture or in the form of an anhydride.
- a sulfidizing agent prepared in situ in a reaction system from an alkali metal hydrosulfide and an alkali metal hydroxide can also be used.
- Preferred examples of the sulfidizing agent include sodium sulfide and sodium hydrosulfide, and it is preferably used in the form of an aqueous mixture from the viewpoint of handleability.
- the amount of the sulfiding agent means the remaining amount obtained by subtracting the loss from the charged amount when a partial loss of the sulfiding agent occurs before the start of the polymerization reaction due to the dehydration operation described later.
- an alkali metal hydrosulfide is used as the sulfiding agent, it is particularly preferable to use an alkali metal hydroxide at the same time.
- the amount of alkali metal hydroxide used is preferably in the range of 90 to 120 mol, more preferably 95 to 115 mol, still more preferably 95 to 110 mol, per 100 mol of alkali metal hydrosulfide. It can be illustrated. By setting the amount used within this range, a PAS with a small amount of polymerization by-products can be obtained without causing decomposition.
- organic polar solvent is used as a polymerization solvent.
- N-alkylpyrrolidones such as N-methyl-2-pyrrolidone and N-ethyl-2-pyrrolidone
- caprolactams such as N-methyl- ⁇ -caprolactam
- 1,3-dimethyl-2-imidazolide Non-, N, N-dimethylacetamide, N, N-dimethylformamide, hexamethylphosphoric triamide, dimethyl sulfone, tetramethylene sulfoxide, and other aprotic organic solvents; and mixtures thereof are highly stable in reaction.
- NMP N-methyl-2-pyrrolidone
- NMP is particularly preferably used.
- the amount of the organic polar solvent used as the polymerization solvent for PAS is not particularly limited, but from the viewpoint of stable reactivity and economy, it is preferably 250 mol or more and less than 550 mol, more preferably 100 mol per sulfidizing agent. A range of 250 mol or more and less than 500 mol, more preferably 250 mol or more and less than 450 mol is exemplified.
- A-3) Dihalogenated aromatic compound When producing PAS, a dihalogenated aromatic compound is used as a raw material.
- PPS which is representative of PAS
- the benzene ring and sulfur become the main skeleton of the polymer, so the dihalogenated aromatic compounds used are p-dichlorobenzene, m-dichlorobenzene, o-dichlorobenzene, p- And dihalogenated benzenes such as dibromobenzene.
- carboxyl group-containing dihalogenated aromatics such as 2,4-dichlorobenzoic acid, 2,5-dichlorobenzoic acid, 2,6-dichlorobenzoic acid, and 3,5-dichlorobenzoic acid It is also a preferred embodiment to use a compound and a mixture thereof as a copolymerization monomer.
- p-dihalogenated benzene typified by p-dichlorobenzene is preferred as the main component.
- a part of dihalogenated benzoic acid typified by 2,4-dichlorobenzoic acid or 2,5-dichlorobenzoic acid is used as a copolymerization component, and a viewpoint of maintaining a high melting point.
- 2,5-dichlorobenzoic acid is a more preferable copolymer component.
- the amount of the dihalogenated aromatic compound used is preferably from 80 to less than 150 mol, more preferably 90 mol, per 100 mol of the sulfidizing agent, from the viewpoint of suppressing decomposition and efficiently obtaining a PAS having a viscosity suitable for processing.
- a range of not less than 110 mol and more preferably not less than 95 mol and less than 105 mol can be exemplified.
- the dihalogenated aromatic compound is less than 80 mol per 100 mol of the sulfidizing agent, the resulting PAS tends to decompose.
- the amount of the carboxyl group-containing dihalogenated aromatic compound used per 100 moles of the sulfidizing agent is preferably within the total amount of the dihalogenated aromatic compound.
- a range of 0.1 mol or more and less than 20 mol, more preferably 1 mol or more and less than 15 mol, and further preferably 2 mol or more and less than 10 mol can be exemplified.
- the carboxyl group-containing dihalogenated aromatic compound When the carboxyl group-containing dihalogenated aromatic compound is less than 0.1 mol per 100 mol of the sulfidizing agent, the amount of carboxyl groups in the resulting PAS is reduced. When the carboxyl group-containing dihalogenated aromatic compound is 20 moles or more per 100 moles of the sulfidizing agent, the molecular weight of the resulting PAS tends to decrease and mechanical properties and chemical resistance tend to decrease.
- a carboxyl group-containing dihalogenated aromatic compound When a carboxyl group-containing dihalogenated aromatic compound is used, there is no particular limitation on the timing of addition, and it may be added at any time during the dehydration step, the start of polymerization, or during the polymerization described later, or divided into multiple times. May be added.
- a reflux device When added at the time of the dehydration step, a reflux device is required so that the carboxyl group-containing dihalogenated aromatic compound does not volatilize at the time of the dehydration step.
- a press-fitting device is required to add in the middle of polymerization (pressurized state), and the carboxyl group-containing dihalogenated aromatic compound reacts from the middle of the polymerization.
- the addition time of the carboxyl group-containing dihalogenated aromatic compound is preferably a time point when the conversion rate of the dihalogenated aromatic compound is less than 80%, more preferably less than 70%, from the completion of the dehydration step to the start of polymerization. More preferably, it is most preferably added at the start of polymerization, that is, simultaneously with the dihalogenated aromatic compound.
- (A-4) Monohalogenated Compound In producing PAS, it is also one of preferred embodiments to add a carboxyl group-containing monohalogenated compound for the purpose of obtaining a PAS having a high carboxyl group content.
- Preferred examples of the carboxyl group-containing monohalogenated compound include a carboxyl group-containing monohalogenated aromatic compound. Specifically, 2-chlorobenzoic acid, 3-chlorobenzoic acid, 4-chlorobenzoic acid, sodium 4-chlorophthalate, 2-amino-4-chlorobenzoic acid, 4-chloro-3-nitrobenzoic acid, And 4′-chlorobenzophenone-2-carboxylic acid.
- 3-chlorobenzoic acid, 4-chlorobenzoic acid, and sodium 4-chlorophthalate are preferable monohalogenated compounds. Unless the effects of the present invention are impaired, chlorobenzene, 1-chloronaphthalene, 2-chloroaniline, 3-chloroaniline, 4-chloroaniline, 2-chlorophenol, 3-chlorophenol, 4-chlorophenol, 4-chlorophenol, Chlorobenzamide, 4-chlorobenzeneacetamide, 4-chlorobenzenesulfonamide, 4-chlorobenzenesulfonic acid, 4-chlorobenzenethiol, 2-amino-5-chlorobenzophenone, 2-amino-4-chlorophenol, 2-chloronitrobenzene, 3- It is also possible to use monohalogenated compounds such as chloronitrobenzene, 4-chloronitrobenzene, 4-chlorophthalic anhydride, and mixtures thereof.
- the amount used is preferably 0.01 mol or more and less than 20 mol, more preferably 0.1 mol or more and less than 15 mol, further preferably 1.0 mol, per 100 mol of the sulfidizing agent.
- the amount is in the range of not less than 10 mol, particularly preferably not less than 2.0 mol and less than 8 mol.
- the monohalogenated compound is less than 0.01 mol per 100 mol of the sulfidizing agent, the amount of carboxyl groups in the resulting PAS is reduced.
- the monohalogenated compound is 20 moles or more per 100 moles of the sulfidizing agent, the molecular weight of the resulting PAS tends to decrease, and the mechanical properties and chemical resistance tend to decrease.
- the total amount of halogenated compounds such as dihalogenated aromatic compounds and monohalogenated compounds be in a specific range.
- the total amount of the halogenated compound is preferably 98 mol or more and less than 110 mol, more preferably 100 mol or more and less than 108 mol, and even more preferably 103 mol or more and less than 107 mol with respect to 100 mol of the sulfidizing agent.
- the total amount of the halogenated compound is less than 98 mol with respect to 100 mol of the sulfidizing agent, the resulting PAS tends to decompose.
- the halogenated compounds include not only the above-mentioned dihalogenated aromatic compounds and monohalogenated aromatic compounds having a reactive functional group, but also polyhalogenated compounds of trihalogenated or higher used in the branching / crosslinking agent described later. Including.
- the addition timing of the monohalogenated compound is not particularly limited, and it may be added at any time during the dehydration step described later, at the start of the polymerization, or during the polymerization, or may be added in a plurality of times.
- a reflux apparatus is required so that the monohalogenated compound does not evaporate during the dehydration step.
- a press-fitting device is required to add in the middle of polymerization (pressurized state), and the monohalogenated compound reacts in the middle of polymerization, so that the consumption of the monohalogenated compound is completed at the end of the polymerization. However, it remains in the polymerization system.
- the addition time of the monohalogenated compound is preferably a time point when the conversion rate of the dihalogenated aromatic compound is less than 80%, more preferably a time point less than 70%, and more preferably from the completion of the dehydration step to the start of polymerization. It is most preferable to add at the start of polymerization, that is, simultaneously with the dihalogenated aromatic compound.
- the monohalogenated compound can also be used for the purpose of adjusting the molecular weight of PAS or for the purpose of reducing the chlorine content of PAS.
- a carboxyl group-containing monohalogenated compound When a carboxyl group-containing monohalogenated compound is used, Contributes not only to an increase in carboxyl group content but also to a reduction in chlorine content.
- (A-5) Polymerization aid It is one of preferred embodiments to use a polymerization aid when producing PAS.
- the purpose of using the polymerization aid is to adjust the obtained PAS to a desired melt viscosity.
- Specific examples of the polymerization aid include, for example, organic carboxylic acid metal salts, water, alkali metal chlorides (but excluding sodium chloride), organic sulfonic acid metal salts, alkali metal sulfates, alkaline earth metal oxides, and alkalis. Examples thereof include metal phosphates and alkaline earth metal phosphates. These may be used alone or in combination of two or more. Of these, organic carboxylic acid metal salts and / or water are preferably used.
- the organic carboxylic acid metal salt can be used as a hydrate, an anhydride, or an aqueous solution.
- Specific examples include lithium acetate, sodium acetate, potassium acetate, magnesium acetate, calcium acetate, sodium propionate, lithium valerate, sodium benzoate, sodium phenylacetate, and mixtures thereof.
- the amount used in the case of using the above organic carboxylic acid metal salt as a polymerization aid is preferably in the range of 1 mol or more and less than 70 mol, more preferably in the range of 2 mol or more and less than 60 mol, relative to 100 mol of the charged sulfidizing agent.
- the range of 2 mol or more and less than 55 mol is more preferable.
- the addition timing is not particularly limited, and it may be added at any time during the dehydration step described later, at the start of polymerization, or during polymerization, or multiple times. It may be added separately. From the viewpoint of ease of addition, it is preferable to add at the same time as the sulfidizing agent at the start of the dehydration step or at the start of polymerization.
- the preferable range of the amount of water in the polymerization system is 80 to 300 mol, and more preferably 85 to 180 mol with respect to 100 mol of the sulfidizing agent. If the amount of water is too large, the internal pressure of the reactor is greatly increased, and a reactor having high pressure resistance is required, which tends to be unfavorable in terms of economy and safety.
- a preferable range of the water content in the polymerization system after adding water after the polymerization is 100 to 1500 mol, more preferably 150 to 1000 mol, relative to 100 mol of the sulfidizing agent.
- the polyhalogen compound is preferably a polyhalogenated aromatic compound, and specific examples thereof include 1,3,5-trichlorobenzene and 1,2,4-trichlorobenzene.
- a polymerization stabilizer When producing PAS, a polymerization stabilizer may be used to stabilize the polymerization reaction system and prevent side reactions.
- the polymerization stabilizer contributes to stabilization of the polymerization reaction system and suppresses undesirable side reactions such as the formation of thiophenol.
- Specific examples of the polymerization stabilizer include compounds such as alkali metal hydroxides, alkali metal carbonates, alkaline earth metal hydroxides, and alkaline earth metal carbonates. Among these, alkali metal hydroxides such as sodium hydroxide, potassium hydroxide, and lithium hydroxide are preferable.
- the aforementioned organic carboxylic acid metal salt also acts as a polymerization stabilizer.
- an alkali metal hydrosulfide is used as a sulfidizing agent, it has been described above that it is particularly preferable to use an alkali metal hydroxide at the same time.
- Oxides can also be polymerization stabilizers.
- polymerization stabilizers can be used alone or in combination of two or more.
- the polymerization stabilizer is preferably used in an amount of 1 to 20 mol, more preferably 3 to 10 mol, per 100 mol of the sulfidizing agent in the reaction system before the start of the polymerization reaction. If this ratio is too large, it tends to be economically disadvantageous and the polymer yield tends to decrease.
- generated as a result can also become a polymerization stabilizer.
- the addition timing of the polymerization stabilizer is not particularly limited, and it may be added at any time during the dehydration step described later, at the start of the polymerization, or during the polymerization, or may be added in a plurality of times.
- the sulfidizing agent is usually used in the form of a hydrate.
- the temperature of the mixture containing the organic polar solvent and the sulfidizing agent is kept at room temperature to 150 ° C., preferably from room temperature to 100 ° C.
- a method of raising the temperature to at least 150 ° C. or more, preferably 180 ° C. to 260 ° C. under normal pressure or reduced pressure, to distill off the water can be mentioned.
- a polymerization aid may be added at this stage.
- the water content in the system at the stage when the dehydration step is completed is preferably 90 to 110 mol per 100 mol of the charged sulfidizing agent.
- the amount of water in the system is an amount obtained by subtracting the amount of water removed from the system from the amount of water charged in the dehydration step.
- A-9) Polymerization step When producing PAS, a polymerization step is performed in which the reaction product prepared in the dehydration step is contacted with a dihalogenated aromatic compound or a monohalogenated compound in an organic polar solvent to perform a polymerization reaction. .
- a dihalogenated aromatic compound or a monohalogenated compound is desirably added in an inert gas atmosphere at a temperature of 100 to 220 ° C., preferably 130 to 200 ° C.
- a polymerization aid may be added at this stage.
- the order in which these raw materials are charged may be out of order or may be simultaneous.
- the polymerization step is preferably performed in a temperature range of 200 ° C. or more and less than 280 ° C., but the polymerization conditions are not limited as long as the effect of the present invention is obtained.
- the reaction is continued for a certain period of time in a temperature range of 245 ° C. or more and less than 280 ° C.
- a method in which the reaction is continued for a certain period of time by raising the temperature to a temperature range of 280 ° C.
- preferable polymerization conditions for obtaining a PAS having a high carboxyl amount necessary for obtaining the PAS resin composition of the present invention and having a small amount of volatile components are as follows.
- step 1 and step 2 will be described in detail.
- Step 2 is carried out after sufficiently increasing the conversion rate of the dihalogenated aromatic compound or monohalogenated compound at a low temperature.
- a polymerization temperature of less than 230 ° C.
- the conversion rate of the dihalogenated aromatic compound or monohalogenated compound is difficult to increase, and the resulting PAS has a low melt viscosity and is suitable for injection molding. Tend to be difficult to obtain.
- the reaction rate is relatively high at a temperature range of 230 ° C. or higher and lower than 245 ° C., but is 30 minutes or longer and shorter than 3.5 hours, preferably 40 minutes or longer and shorter than 3.5 hours, more preferably 1 hour or longer and 3 hours shorter.
- the reaction should be carried out in less than an hour, more preferably in the range of 1.5 hours to less than 3 hours. In order to increase the conversion rate of the dihalogenated aromatic compound in the temperature range of 230 ° C.
- the polymerization time in the temperature range of 200 ° C. or more and less than 230 ° C. is preferably within 2 hours, and more preferably within 1 hour.
- the polymerization time (T1) including the temperature increase / decrease time within the temperature range of 200 ° C. or more and less than 245 ° C. including step 1 is preferably 1.5 hours or more and less than 4 hours, and 1.5 hours or more and 3 hours. Less than 5 hours is more preferable, and 2 hours or more and 3.5 hours or less is more preferable.
- T1 When T1 is less than 1.5 hours, the conversion rate of the dihalogenated aromatic compound described later is low, the unreacted sulfidizing agent causes decomposition of the prepolymer in Step 2, and the obtained PAS is heated and melted. Sometimes volatile components tend to increase. Moreover, when T1 exceeds 4 hours, it will lead to a reduction in production efficiency.
- the average rate of temperature increase within the polymerization temperature range is preferably 0.1 ° C./min or more.
- the average rate of temperature increase is the time m required to raise the temperature section (provided that t2 ⁇ t1) from a certain temperature t2 (° C.) to a certain temperature t1 (° C.).
- the average heating rate is more preferably 2.0 ° C./min or less, and further preferably 1.5 ° C./min or less. If the average heating rate is too high, it may be difficult to control the reaction, and more energy tends to be required to raise the temperature. When a vigorous reaction occurs at the initial stage of the reaction, it is preferable to carry out the reaction by a method in which the reaction is carried out to some extent at 240 ° C. or lower and then heated to a temperature exceeding 240 ° C.
- the conversion of the dihalogenated aromatic compound at the end of Step 1 is 70 to 98 mol% to form a PAS prepolymer, more preferably 75 mol% or more, and still more preferably 80 mol%. %, More preferably 90 mol% or more.
- the unreacted sulfidizing agent causes decomposition of the prepolymer, and the amount of volatile components tends to increase when the obtained PAS is heated and melted.
- the reaction is carried out until the conversion rate in Step 1 exceeds 98 mol%, a long polymerization time is required, leading to a decrease in production efficiency.
- the conversion rate of the dihalogenated aromatic compound (hereinafter abbreviated as DHA) is a value calculated by the following formula.
- the remaining amount of DHA can be usually determined by gas chromatography.
- conversion rate [[DHA charge (mol) ⁇ DHA remaining amount (mol)] / [DHA charge (mol) ⁇ DHA excess (mole)]] ⁇ 100%
- conversion rate [[DHA charge (mol) ⁇ DHA remaining amount (mol)] / [DHA charge (mol)]] ⁇ 100%.
- Step 2 The final temperature in Step 2 is preferably 275 ° C. or lower, more preferably 270 ° C. or lower.
- the flash method when used in the polymer recovery step described later, since the flash energy becomes small when the temperature of the polymer is low, there is a problem that the heat of vaporization of the polymerization solvent is reduced and the flash recovery cannot be efficiently performed.
- the final temperature of step 2 reaches 280 ° C. or higher, the melt viscosity of the obtained PAS becomes too high and the internal pressure of the reactor tends to increase, and a reactor having high pressure resistance is required. Therefore, it is not preferable in terms of economy and safety.
- the mechanical properties of PAS tend to decrease due to the thermal decomposition and modification of the carboxyl group introduced into PAS.
- the polymerization time (T2) in Step 2 is preferably 5 minutes or more and less than 1 hour, more preferably 10 minutes or more and less than 40 minutes, and even more preferably 10 minutes or more and less than 30 minutes.
- an organic polar solvent such as NMP reacts with the alkali metal hydroxide, Side reactions in which an alkali metal alkylaminoalkylcarboxylate is produced proceed.
- step 2 When the polymerization time (T2) in step 2 is 1 hour or more, the side reaction proceeds so remarkably that the amount of volatile components derived from the side reaction product tends to increase when the obtained PAS is melted and heated. .
- a long polymerization time causes problems such as a decrease in production efficiency and an increase in PAS melt viscosity, and at the same time, the mechanical properties of PAS tend to decrease due to thermal decomposition and modification of carboxyl groups introduced into PAS. is there.
- the main chain of PAS is decomposed by heat, and the mechanical properties are lowered accordingly.
- the reaction in step 2 may be either a one-step reaction performed at a constant temperature, a multi-step reaction in which the temperature is increased stepwise, or a reaction in which the temperature is continuously changed.
- the ratio (T1a / T2) of the polymerization time (T1a) in step 1 and the polymerization time (T2) in step 2 is 0.5 or more.
- the higher the ratio the more the polymerization time in Step 1 can be secured, and the conversion rate of the dihalogenated aromatic compound or monohalogenated compound can be increased.
- the polymerization time in Step 2 can be suppressed to a short time. .
- transduced into PAS can also be suppressed by suppressing reaction at high temperature like the process 2 for a short time, a high mechanical property and chemical resistance may be expressed. it can.
- T1a / T2 is more preferably 1 or more, further preferably 2 or more, and even more preferably 5 or more.
- the upper limit of T1a / T2 is not particularly limited, but is preferably 25 or less, more preferably 20 or less, in order to obtain a PAS having preferable melt fluidity.
- the ratio (T1 / T2) of the polymerization time (T1) and the polymerization time (T2) in the process 2 in the temperature range including the process 1 to 200 ° C. or more and less than 245 ° C. is 1.2 or more.
- T1 / T2 is more preferably 3 or more, and even more preferably 5 or more.
- the upper limit of T1 / T2 is not particularly limited, but is preferably 30 or less, more preferably 25 or less, in order to obtain a PAS having preferable melt fluidity.
- the total reaction time (T1 + T2) from the start of step 1 to the end of step 2 is preferably less than 5 hours, more preferably less than 4 hours, and even more preferably less than 3.5 hours. Prolonging the polymerization time leads to a decrease in production efficiency, and tends to cause an increase in the amount of volatile components at the time of melting, a deterioration in melt fluidity, and a decrease in mechanical properties of PAS due to thermal decomposition and modification of carboxyl groups. .
- the atmosphere during the polymerization is preferably a non-oxidizing atmosphere, and is preferably carried out in an inert gas atmosphere such as nitrogen, helium or argon. Nitrogen is particularly preferred from the viewpoint of economy and ease of handling.
- the reaction pressure is not particularly limited because it cannot be defined unconditionally depending on the type and amount of raw materials and solvents used, or the reaction temperature.
- the amount of carboxyl group introduced into the PAS at the stage of completing the polymerization reaction step can be evaluated by relative evaluation by comparing the absorption derived from the benzene ring and the absorption derived from the carboxyl group in FT-IR.
- X is a halogen group.
- Y1 is a halogen group or a carboxyl group.
- Y2 to Y5 are hydrogen, alkyl group, alkoxy group, phenylene group, amino group, amide group, ester group, imide group, acetamide group, sulfonamide group, sulfonic acid group, carboxyl group, hydroxyl group, thiol group, cyano group, A substituent selected from an isocyanate group, an aldehyde group, an acetyl group, an anhydride group, an epoxy group, a silanol group, an alkoxysilane group, or a derivative thereof, and when Y1 is a halogen group, at least one of Y2 to Y5 Is a carboxyl group.
- reaction amount is preferably 0.1 mol or more and less than 20 mol, more preferably 1.0 mol or more and less than 6 mol, and further preferably 1.5 mol or more and less than 5 mol with respect to 100 mol of the sulfidizing agent.
- reaction amount is a value obtained by quantifying the carboxyl group-containing halogenated aromatic compound remaining in the sample sampled after the completion of the polymerization step using a gas chromatograph and subtracting the remaining amount from the charged amount.
- reaction amount the larger the amount of carboxyl groups introduced into PAS, which means that higher mechanical properties and chemical resistance are expressed.
- the reaction amount is 20 mol or more with respect to 100 mol of the sulfidizing agent, the resulting PAS has a low molecular weight, leading to a decrease in mechanical properties.
- the reaction amount is less than 0.1 mol, the amount of carboxyl groups in the resulting PAS is small, leading to a decrease in mechanical properties.
- PAS is recovered from the polymerization reaction product containing the PAS component and solvent obtained in the polymerization step after the polymerization step is completed.
- a recovery method for example, a flash method, that is, a polymerization reaction product is flushed from a high temperature and high pressure (usually 250 ° C. or higher, 0.8 MPa or higher) state to an atmosphere of normal pressure or reduced pressure, and the polymer is powdered simultaneously with solvent recovery.
- the quenching method that is, the polymerization reaction product is gradually cooled from a high-temperature and high-pressure state to precipitate a PAS component in the reaction system, and is filtered at 70 ° C or higher, preferably 100 ° C or higher.
- a method for recovering a solid containing a PAS component can be used.
- the recovery method is not limited to either the quench method or the flash method, but the flash method is capable of recovering solids at the same time as the solvent recovery, relatively short recovery time, compared to the quench method Quenched because it is an economically superior recovery method, such as a large amount of recovered product obtained by the process, and PAS obtained by the flash method contains a large amount of oligomer components such as chloroform extract components. Compared with the PAS obtained by the method, a PAS having a high melt fluidity can be easily obtained, so that the flash method is a preferred recovery method.
- the solvent can be efficiently recovered using the heat of vaporization of the solvent when the polymerization reaction product in a high-temperature and high-pressure state is flushed into an atmospheric atmosphere. If the temperature of the polymerization reaction product at the time of flashing is low, the efficiency of solvent recovery is lowered and productivity is deteriorated. Therefore, the temperature of the polymerization reaction product when flushing is preferably 250 ° C. or higher, and more preferably 255 ° C. or higher.
- the atmosphere when flushing is preferably an atmosphere of nitrogen or water vapor.
- the temperature of the atmosphere is preferably 150 to 250 ° C., and when the solvent recovery from the polymerization reaction product is insufficient, heating may be continued in an atmosphere of nitrogen or steam at 150 to 250 ° C. after flushing.
- the PAS obtained by such a flash method contains ionic impurities such as alkali metal halides and alkali metal organic substances which are polymerization by-products, it is preferable to perform washing.
- the cleaning conditions are not particularly limited as long as the conditions are sufficient to remove such ionic impurities.
- Examples of the cleaning liquid include a method of cleaning using water or an organic solvent. Washing with water can be exemplified as a preferred method because it is simple and inexpensive, and has high melt fluidity by including an oligomer component in PAS. It is preferable to perform the treatment of immersing PAS in water, an acid or an aqueous solution of an acid, an aqueous solution of an alkali metal salt or an alkaline earth metal salt one or more times. It is more preferable to go through a filtration step to separate.
- the pH of the cleaning solution after the treatment is preferably 2-8.
- An acid or an aqueous solution of an acid is an acid obtained by adding an organic acid, an inorganic acid, or the like to an organic acid, an inorganic acid, or water.
- the organic acid and inorganic acid to be used include acetic acid, propionic acid, hydrochloric acid, sulfuric acid, phosphoric acid, formic acid and the like. Acetic acid or hydrochloric acid is preferred.
- the amount of the alkali metal salt or alkaline earth metal salt in the aqueous solution is preferably 0.01 to 5% by mass relative to PAS, 0.1% More preferably, it is -0.7 mass%.
- An aqueous solution of an alkali metal salt or alkaline earth metal salt is a solution obtained by adding an alkali metal salt, an alkaline earth metal salt, or the like to water and dissolving it. Examples of the alkali metal salt and alkaline earth metal salt used include, but are not limited to, calcium salts, potassium salts, sodium salts and magnesium salts of the above organic acids.
- the temperature at which the PAS is washed with the cleaning liquid is preferably 80 ° C. or higher and 220 ° C. or lower, more preferably 150 ° C. or higher and 200 ° C. or lower, and more preferably 180 ° C. or higher and 200 ° C. or lower in terms of obtaining a PAS with less ionic impurities. .
- the water used for the cleaning liquid is preferably distilled water or deionized water, and the ratio of PAS to the cleaning liquid is usually preferably in the range of 10 to 500 g of PAS per 1 liter of cleaning liquid.
- Any cleaning solution may be used, but a higher melt fluidity can be obtained by treatment with an acid, which can be exemplified as a suitable method.
- the cleaning liquid may be used at any stage of the cleaning process.
- the solid collected by the flash method is immersed in hot water of 80 ° C. or higher and 220 ° C. or lower.
- a method of performing treatment by immersing PAS in an acid of 150 ° C. or higher or an aqueous solution of an acid after performing the filtration treatment several times is preferable.
- the PAS thus obtained is dried under normal pressure and / or reduced pressure.
- the drying temperature is preferably in the range of 120 to 280 ° C.
- the drying atmosphere may be any of an inert atmosphere such as nitrogen, helium and reduced pressure, an oxidizing atmosphere such as oxygen and air, and a mixed atmosphere of air and nitrogen, but an inert atmosphere is preferred from the viewpoint of melt viscosity.
- the drying time is preferably 0.5 to 50 hours.
- the obtained PAS is treated at a temperature of 130 to 260 ° C. for 0.1 to 20 hours in an oxygen-containing atmosphere in order to remove volatile components or to adjust to a preferred melt viscosity by increasing the cross-linking molecular weight. It is also possible.
- the PAS thus obtained needs to have a carboxyl group content of more than 100 ⁇ mol / g and less than 400 ⁇ mol / g.
- the carboxyl group content is preferably 130 ⁇ mol / g or more, more preferably 150 ⁇ mol / g or more, and more preferably 160 ⁇ mol / g or more.
- the carboxyl group content is preferably less than 350 ⁇ mol / g, more preferably less than 300 ⁇ mol / g, and even more preferably less than 250 ⁇ mol / g.
- a PAS resin composition obtained by blending a PAS having a carboxyl group content in such a range and a filler has excellent mechanical properties and chemical resistance not found in the past. It is.
- the carboxyl group content of PAS is 100 ⁇ mol / g or less, the interaction with the filler is lowered, and the mechanical properties and chemical resistance improvement effect of a molded product made from the resin composition obtained are reduced.
- the carboxyl group content of PAS is 400 ⁇ mol / g or more, the amount of volatile components tends to increase and voids easily enter the molded product.
- the weight average molecular weight of PAS needs to be 10,000 or more and less than 100,000.
- the mechanical properties and chemical resistance of the obtained molded product are dramatically improved.
- the molecular weight of PAS is low, the mechanical properties of PAS itself are greatly reduced. Therefore, even if the carboxyl group content is high, the mechanical properties of molded products made from resin compositions obtained by adding fillers. And chemical resistance tends to decrease.
- the weight average molecular weight of PAS is preferably 15000 or more, more preferably 16000 or more, and further preferably 17000 or more.
- the weight average molecular weight of PAS is preferably less than 80000, more preferably less than 60000, and even more preferably less than 40000.
- the amount of volatile components that volatilize when heated and melted under vacuum at 320 ° C. for 2 hours is preferably 1.0% by mass or less.
- the amount of volatile components is small, more preferably 0.9% by mass or less, and even more preferably 0.8% by mass or less.
- the amount of volatile components is small, there is no lower limit, but usually 0.01% by mass or more is generated.
- the amount of the volatile component means the amount of the adhering component in which the component that volatilizes when the PAS is heated and melted under vacuum is cooled and liquefied or solidified. It is measured by heating under the above conditions using a tubular furnace.
- the chlorine content of PAS obtained by a polymerization reaction using a carboxyl group-containing monohalogenated compound is preferably 3500 ppm or less, more preferably 3000 ppm or less, and even more preferably 2500 ppm or less.
- PAS used in the PAS resin composition two or more kinds of PAS can be used in combination.
- the average carboxyl group content and weight average molecular weight of all PAS contained in the PAS resin composition must be within the specific range of the present invention.
- the polyarylene sulfide resin composition of the present invention needs to contain a filler in the above PAS. By adding a filler to a specific PAS, mechanical properties and chemical resistance are dramatically improved. Examples of the filler include inorganic fillers and organic fillers.
- Inorganic fillers include glass fiber, glass milled fiber, carbon fiber, potassium titanate whisker, zinc oxide whisker, calcium carbonate whisker, wollastonite whisker, aluminum borate whisker, alumina fiber, silicon carbide fiber, ceramic fiber, stone-kow fiber Fibrous inorganic fillers such as metal fibers and basalt fibers; talc, wollastonite, zeolite, sericite, mica, kaolin, clay, mica, ferrite, pyrophyllite, bentonite, alumina silicate, silicon oxide, magnesium oxide, alumina , Zirconium oxide, titanium oxide, iron oxide, magnesium oxide, calcium carbonate, magnesium carbonate, dolomite, calcium sulfate, barium sulfate, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, glass beads, glass Flakes, glass powder, ceramic beads, boron nitride, silicon nitride, silicon carbide, aluminum silicate, calcium silicate, silica, graphite,
- Organic fillers include polyethylene fiber, polypropylene fiber, polyester fiber, polyamide fiber, polyaramid fiber, fluororesin fiber, thermosetting resin fiber, epoxy resin fiber, polyvinylidene chloride fiber, polyvinylidene fluoride fiber, cellulose fiber, etc.
- Non-fibrous organic fillers such as ebonite powder, cork powder, and wood powder.
- These inorganic fillers and organic fillers may be hollow. Two or more of these fillers can be used in combination. Further, these fillers may be used after being pretreated with a coupling agent such as an isocyanate compound, an organic silane compound, an organic titanate compound, an organic borane compound, and an epoxy compound.
- a coupling agent such as an isocyanate compound, an organic silane compound, an organic titanate compound, an organic borane compound, and an epoxy compound.
- the fibrous filler is not limited in fiber shape, and can be used with either short fibers or long fibers.
- the short fiber generally means a fibrous filler having an average fiber length of 1 mm or more and less than 10 mm before blending.
- the long fiber generally means a fibrous filler having an average fiber length before blending in a range of 10 mm or more and less than 50 mm. Generally, it is prepared by cutting or crushing strand-like fibers.
- the average fiber length refers to an average fiber length calculated from the following formula considering the contribution of the fiber length.
- Average fiber length (Lw) ⁇ (Li 2 ⁇ ni) / ⁇ (Li ⁇ ni)
- Fiber length of fibrous filler ni Number of fibrous fillers of fiber length Li
- Wi Weight of fibrous filler ri: Fiber diameter of fibrous filler ⁇ : Density of fibrous filler.
- the type of filler is not specified, but considering the reinforcing effect of the filler as the resin composition, fibrous inorganic fillers such as glass fibers and carbon fibers are preferable.
- Carbon fiber has not only an effect of improving mechanical properties but also an effect of reducing the weight of a molded product.
- a filler is carbon fiber, since the effect which the mechanical physical property and chemical-resistance of a PAS resin composition improve is expressed more, it is more preferable.
- PAN-based, pitch-based, and rayon-based carbon fibers PAN-based carbon fibers are preferable from the viewpoint of the balance between strength and elastic modulus of the molded product.
- the sizing agent added to the filler can suppress the occurrence of fluff and yarn breakage, can improve higher-order workability, and at the same time, is a machine for molded products obtained from the PAS resin composition
- the physical properties and chemical resistance can be improved, which is preferable.
- the effect of improving the mechanical properties becomes higher by applying a sizing agent.
- the adhesion amount of the sizing agent is not particularly limited, but is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, and further preferably 0.1 to 2% by mass with respect to the filler.
- the adhesion amount of the sizing agent When the adhesion amount of the sizing agent is less than 0.01% by mass, the effect of improving the mechanical properties of the PAS resin composition is hardly exhibited. When the adhesion amount exceeds 10% by mass, the sizing agent is volatilized when the PAS resin composition is melted, and the working environment tends to deteriorate due to gas generation.
- the sizing agent include an epoxy resin, polyethylene glycol, polyurethane, polyester, emulsifier or surfactant, and an epoxy resin is preferable. Moreover, these may use together 1 type, or 2 or more types.
- the blending amount of the filler is preferably in the range of 10 to 250 parts by weight, more preferably in the range of 20 to 150 parts by weight, and in the range of 30 to 100 parts by weight with respect to 100 parts by weight of the (A) PAS resin. Is more preferable.
- the compounding quantity of a filler exceeds 250 mass parts, the melt fluidity of a PAS resin composition will fall. If the blending amount is less than 10 parts by mass, the reinforcing effect as a filler is small, so that excellent mechanical properties and chemical resistance improving effects tend not to be expressed.
- (C) Olefin copolymer It is also one of the preferable aspects to mix an olefin copolymer further with the polyarylene sulfide resin composition of this invention.
- the olefin copolymer an olefin copolymer having at least one functional group selected from the group consisting of an epoxy group, a carboxyl group, an acid anhydride group, an amino group, a hydroxyl group and a mercapto group is more preferable.
- an epoxy group-containing olefin copolymer is preferably used because it has good compatibility with the PAS resin and exhibits high toughness.
- Examples of the epoxy group-containing olefin copolymer include olefin copolymers obtained by copolymerizing an olefin monomer component with a monomer component having an epoxy group. Moreover, the copolymer which epoxidized the double bond part of the olefin type copolymer which has a double bond in a principal chain can also be used.
- Examples of functional group-containing components for introducing a monomer component having an epoxy group into an olefin copolymer include glycidyl acrylate, glycidyl methacrylate, glycidyl ethacrylate, glycidyl itaconate, and glycidyl citraconic acid.
- Examples include monomers containing an epoxy group.
- the introduction amount of the monomer component containing an epoxy group is 0.001 mol% or more, preferably 0.01 mol% or more, based on the whole monomer as a raw material of the epoxy group-containing olefin copolymer. Is preferred. Further, the introduction amount is 40 mol% or less, preferably 35 mol% or less, based on the whole monomer as a raw material of the epoxy group-containing olefin copolymer.
- the olefin copolymer examples include an epoxy-containing olefin copolymer having an ⁇ -olefin and a glycidyl ester of ⁇ , ⁇ -unsaturated carboxylic acid as a copolymerization component.
- Preferred examples of the ⁇ -olefin include ethylene. These copolymers further include ⁇ , ⁇ -unsaturated carboxylic acids such as acrylic acid and methacrylic acid, and olefin copolymers obtained by copolymerizing salts thereof such as Na, Zn, K, Ca, and Mg.
- an olefin copolymer an ethylene / ⁇ -olefin copolymer obtained by copolymerizing ethylene and an ⁇ -olefin having 3 to 20 carbon atoms is added to maleic anhydride, succinic anhydride, fumaric anhydride.
- An olefin copolymer into which an acid anhydride such as a product is introduced can also be used.
- Such an olefin copolymer may be random, alternating, block, or graft.
- an olefin copolymer obtained by copolymerizing ⁇ -olefin and glycidyl ester of ⁇ , ⁇ -unsaturated carboxylic acid 60-99% by mass of ⁇ -olefin and glycidyl ester of ⁇ , ⁇ -unsaturated carboxylic acid
- An olefin copolymer obtained by copolymerizing 1 to 40% by mass is particularly preferable.
- R represents a hydrogen atom or a linear or branched lower alkyl group having 1 to 6 carbon atoms.
- Specific examples include glycidyl acrylate, glycidyl methacrylate, and glycidyl ethacrylate. Among them, glycidyl methacrylate is preferably used.
- an olefin copolymer comprising an glycidyl ester of an ⁇ -olefin and an ⁇ , ⁇ -unsaturated carboxylic acid
- an ethylene / propylene-g-glycidyl methacrylate copolymer (“g” represents a graft, The same), ethylene / butene-1-g-glycidyl methacrylate copolymer, ethylene-glycidyl methacrylate copolymer-g-polystyrene, ethylene-glycidyl methacrylate copolymer-g-acrylonitrile-styrene copolymer, ethylene-glycidyl Methacrylate copolymer-g-PMMA, ethylene / glycidyl acrylate copolymer, ethylene / glycidyl methacrylate copolymer, ethylene / methyl acrylate / glycidyl methacryl
- ethylene / glycidyl methacrylate copolymer ethylene / methyl acrylate / glycidyl methacrylate copolymer, and ethylene / methyl methacrylate / glycidyl methacrylate copolymer are preferably used.
- olefin copolymer comprising ethylene and an ⁇ , ⁇ -unsaturated carboxylic acid
- E / MAA ethylene / acrylic acid / n-butyl acrylate
- Methacrylic acid / n-butyl acrylate ethylene / methacrylic acid / iso-butyl acrylate
- ethylene / acrylic acid / iso-butyl acrylate ethylene / acrylic acid / iso-butyl acrylate
- ethylene / acrylic acid / methacrylic acid / n-butyl methacrylate ethylene / acrylic acid / methacrylic acid Methyl
- ethylene / acrylic acid / ethyl vinyl ether ethylene / acrylic acid / butyl vinyl ether
- ethylene / acrylic acid / methyl acrylate ethylene / methacrylic acid / ethyl acrylate
- the blending amount of the (C) olefin copolymer is preferably in the range of 1 to 30 parts by weight, more preferably in the range of 3 to 25 parts by weight, with respect to 100 parts by weight of the (A) PAS resin.
- the range of parts by mass is more preferable.
- an olefin homopolymer or olefin copolymer that does not contain a functional group may be used together with the above functional group-containing olefin copolymer.
- an ethylene / ⁇ -olefin copolymer obtained by copolymerizing ethylene and an ⁇ -olefin having 3 to 20 carbon atoms may be mentioned.
- ⁇ -olefin having 3 to 20 carbon atoms include propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-undecene, 1-dodecene, 1-tridecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecene, 1-eicosene, 3-methyl-1-butene, 3-methyl-1- Pentene, 3-ethyl-1-pentene, 4-methyl-1-pentene, 4-methyl-1-hexene, 4,4-dimethyl-1-hexene, 4,4-dimethyl-1-pentene, 4-ethyl- 1-hexene, 3-ethyl-1-hexene, 9-methyl-1-decene, 11-methyl-1-
- ⁇ -olefins a copolymer using an ⁇ -olefin having 6 to 12 carbon atoms is more preferable because improvement in mechanical strength and further improvement effect can be seen.
- Other examples include polyethylene, polypropylene, polystyrene, polybutene, ethylene-propylene-diene copolymer, styrene-butadiene copolymer, styrene-butadiene-styrene block copolymer (SBS), and styrene-isoprene-styrene block copolymer.
- SEPS combination
- (D) Alkoxysilane Compound In the polyarylene sulfide resin composition of the present invention, it is preferable to further blend 0.05 to 5 parts by mass of (D) an alkoxysilane compound with respect to 100 parts by mass of (A) PAS resin.
- the alkoxysilane compound an alkoxysilane compound having at least one functional group selected from an epoxy group, an amino group, an isocyanate group, a hydroxyl group, a mercapto group, and a ureido group may be used. Addition of the silane compound improves physical properties such as mechanical strength, toughness, and low burr. If the addition amount is too small, the effect of improving physical properties is small, and if the addition amount is too large, the melt viscosity increases and injection molding becomes difficult. Therefore, the addition amount is more preferably 0.05 to 3 parts by mass.
- Such compounds include epoxy group-containing alkoxysilanes such as ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropyltriethoxysilane, and ⁇ - (3,4-epoxycyclohexyl) ethyltrimethoxysilane.
- mercapto group-containing alkoxysilane compound such as ⁇ -mercaptopropyltrimethoxysilane, ⁇ -mercaptopropyltriethoxysilane; ⁇ -ureidopropyltriethoxysilane, ⁇ -ureidopropyltrimethoxysilane, ⁇ - (2-ureidoethyl) )
- Ureido group-containing alkoxysilane compounds such as aminopropyltrimethoxysilane; ⁇ -isocyanatopropyltriethoxysilane, ⁇ -isocyanatopropyltrimethoxysilane, ⁇ -isocyanatopropylmethyldimethoxysilane
- Isocyanato group-containing alkoxysilane compounds such as ⁇ -isocyanatopropylmethyldiethoxysilane, ⁇ -isocyanatopropylethyldimethoxysilane, ⁇ -
- a flame retardant may be blended.
- the flame retardant include hydrated metal flame retardants such as aluminum hydroxide and magnesium hydroxide; and inorganic flame retardants such as bromo flame retardant, chlorine flame retardant, phosphorus flame retardant, and antimony trioxide. .
- phosphorus flame retardants are preferable.
- the phosphorus flame retardant is not particularly limited as long as it is a compound having a phosphorus atom, and examples thereof include red phosphorus, organic phosphorus compounds, and inorganic phosphates.
- organic phosphorus compounds include phosphate esters, phosphonic acids, phosphonic acid derivatives, phosphonates, phosphinic acids, phosphinic acid derivatives, phosphinates, phosphines, phosphine oxides, biphosphines, phosphonium salts, phosphazenes, phosphaphenanthrene derivatives, etc. Is mentioned.
- the content of the flame retardant component is preferably in the range of 50% by mass or less, more preferably 30% by mass or less, and further preferably 20% by mass or less of the entire resin composition.
- a fluorine-based resin such as polytetrafluoroethylene or ethylene-tetrafluoroethylene; silicone oil or the like may be added.
- the amount of the additive added is preferably in the range of 0.1 to 10% by mass of the entire resin composition.
- a resin other than the olefin copolymer can be further added to the PAS resin composition of the present invention as long as the effects of the present invention are not impaired.
- the flexibility and impact resistance can be further improved by adding a small amount of a highly flexible thermoplastic resin.
- this amount exceeds 30 parts by mass with respect to 100 parts by mass of the PAS resin, it is not preferable because the original characteristics of the PAS resin are impaired, and particularly 25 parts by mass or less is preferable.
- thermoplastic resin examples include polyamide resin, polybutylene terephthalate resin, polyethylene terephthalate resin, modified polyphenylene ether resin, polysulfone resin, polyallyl sulfone resin, polyketone resin, polyetherimide resin, polyarylate resin, liquid crystal polymer, Examples include polyether sulfone resin, polyether ketone resin, polythioether ketone resin, polyether ether ketone resin, polyimide resin, polyamideimide resin, and tetrafluoropolyethylene resin.
- antioxidants selected from phenolic compounds and phosphorus compounds within a range not impairing the effects of the present invention.
- phenolic antioxidant a hindered phenolic compound is preferably used.
- Specific examples 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) -trione, 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) but
- 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], and 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.
- phosphorus antioxidants include bis (2,6-di-t-butyl-4-methylphenyl) pentaerythritol-di-phosphite, bis (2,4-di-t-butylphenyl) penta Erythritol-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-dibutyl-4-hydroxybenzyl phosphonate diethyl ester, etc.
- those having a high melting point of the antioxidant are preferable. Specifically, bis (2,6-di-t-butyl-4-methylphenyl) pentaerythritol-di-phosphite, bis (2,4-di-t-butylphenyl) pentaerythritol-di-phosphite, And bis (2,4-di-cumylphenyl) pentaerythritol-di-phosphite are preferably used.
- the amount of the antioxidant added is too small, the antioxidant effect will not be exhibited, and if it is too large, gasification will occur during melt-kneading or injection molding, leading to deterioration of the working environment.
- Plasticizers such as isocyanate compounds, organic titanate compounds, organic borane compounds, polyalkylene oxide oligomer compounds, thioether compounds, ester compounds, organophosphorus compounds; talc, kaolin, organophosphorus compounds, polyetheretherketone Crystal nucleating agents such as; metal soaps such as montanic acid wax, lithium stearate, aluminum stearate; mold release agents such as ethylenediamine / stearic acid / sebacic acid polycondensate, silicone compounds; hypophosphite, etc.
- An anti-coloring agent and additives such as a lubricant, an anti-ultraviolet agent, a coloring agent, and a foaming agent can be blended.
- the amount of the compound added is preferably 20% by mass or less, more preferably 10% by mass or less, and still more preferably 1% by mass or less based on the whole composition so as not to impair the original properties of the PAS resin.
- the PAS resin composition of the present invention comprises the above (A) PAS resin and (B) filler, and (C) an olefin copolymer, (D) an alkoxysilane compound, and (E) other additives as required. It can be obtained by melt-kneading the agent. In melt kneading, the raw material is supplied to a known melt kneader such as a single or twin screw extruder, a Banbury mixer, a kneader, and a mixing roll, and the melting peak temperature of the PAS resin + the processing temperature of 5 to 100 ° C. As a representative example, a method of kneading with the above can be given.
- a screw using a twin screw extruder and having two or more kneading parts, and more preferably three or more kneading parts.
- the L / D (L: screw length, D: screw diameter) of the twin screw extruder is preferably 20 or more, and more preferably 30 or more.
- As the screw rotation speed at this time a range of 200 to 500 rotations / minute is selected, and 250 to 400 rotations / minute is more preferably selected.
- the resin temperature at the time of mixing is preferably in the range of the melting peak temperature of the PAS resin +5 to 100 ° C., more preferably in the range of +10 to 70 ° C. as described above.
- the kneading temperature is lower than the melting peak of the PAS resin + 5 ° C, the presence of the PAS resin that does not partially melt increases the viscosity of the composition significantly, increasing the addition to the twin screw extruder. It is not preferable in nature.
- the kneading temperature exceeds the melting peak of the PAS resin + 100 ° C., the PAS resin is decomposed and modified, which is not preferable.
- the mixing order of the raw materials a method in which all the raw materials are blended and then melt-kneaded by the above method, a part of the raw materials are blended and then melt-kneaded by the above method, and the remaining raw materials are blended and melt-kneaded.
- Any method may be used, such as a method or a method in which a part of raw materials is mixed and the remaining raw materials are mixed using a side feeder during melt kneading by a single-screw or twin-screw extruder.
- the small amount additive component other components can be kneaded by the above-mentioned method and pelletized, then added before molding and used for molding.
- the molded product obtained from the PAS resin composition of the present invention has excellent mechanical properties and chemical resistance.
- the PAS resin composition of the present invention can be used not only for applications such as injection molding, injection compression molding and blow molding, but also for applications such as extrusion, molding into sheets, films, fibers and pipes. it can.
- PAS resin composition of the present invention include, for example, sensors, LED lamps, connectors, sockets, resistors, relay cases, switches, coil bobbins, capacitors, variable capacitor cases, optical pickups, oscillators, various terminal boards, transformers.
- VTR parts Plugs, printed circuit boards, tuners, speakers, microphones, headphones, small motors, magnetic head bases, power modules, semiconductors, liquid crystals, motor brush holders, parabolic antennas, computer-related parts, etc .
- VTR parts Home appliances such as TV parts, irons, hair dryers, rice cooker parts, microwave oven parts, acoustic parts, audio equipment parts such as CD / DVD / Blu-ray discs, lighting parts, refrigerator parts, air conditioner parts, office electrical appliances parts;
- Machine-related parts represented by fiscomputer-related parts, telephone-related parts, facsimile-related parts, copier-related parts, cleaning jigs, motor parts, lighters, etc .:
- Optical equipment represented by microscopes, binoculars, cameras, watches, etc.
- valve alternator terminals such as exhaust gas valve, various pipes related to fuel, exhaust system, intake system, air intake nozzle snorkel, intake manifold, fuel pump, engine coolant joint, carburetor main body , Carburetor spacer, exhaust gas sensor, cooling water sensor, oil temperature sensor, throttle position sensor, crankshaft position sensor, air flow meter, brake pad wear sensor, thermostat base for air conditioner, heating hot air flow control valve, radiator motor Brush holders, water pump impellers, turbine vanes, wiper motor parts, distributors, starter switches, starter relays, transmission wire harnesses, window washer nozzles, air conditioner panel switch boards, fuel-related electromagnetic valve coils, fuse connectors , Horn terminal, electrical component insulation plate, step motor rotor, lamp
- the method of the present invention will be described more specifically with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.
- the measuring method of a physical property is as follows.
- the carboxyl group content of the PAS resin was calculated using a Fourier transform infrared spectrometer (hereinafter abbreviated as FT-IR).
- benzoic acid as a standard substance was measured by FT-IR, the absorption intensity (b1) of the peak at 3066 cm ⁇ 1 , which is the absorption of the CH bond of the benzene ring, and the peak at 1704 cm ⁇ 1 , which is the absorption of the carboxyl group.
- FT-IR measurement was performed on the amorphous film obtained by melt-pressing the PAS resin at 320 ° C. for 1 minute and then rapidly cooling it.
- the PAS resin is a PPS resin, it is composed of phenylene sulfide units, and thus the carboxyl group content relative to 1 g of the PPS resin was calculated from the following formula.
- PPS resin contains a metaphenylene sulfide unit
- absorption was observed at 780 cm ⁇ 1, but the absorption was not observed in the following PPS-1 to 9.
- the weight average molecular weight (Mw) of the PAS resin was calculated in terms of polystyrene using gel permeation chromatography (GPC). The measurement conditions for GPC are shown below.
- Detector temperature 210 ° C
- Flow rate 1.0 mL / min
- Sample injection amount 300 ⁇ L (slurry: about 0.2% by mass).
- the adhering gas was dissolved and removed with 5 g of chloroform, and then dried with a glass dryer at 60 ° C. for 1 hour, and the ampoule neck was weighed again.
- the amount of volatile components (% by mass relative to the polymer) was calculated from the difference in mass between the ampoule necks before and after removing the gas.
- [Melting point] Using DSC7 manufactured by PerkinElmer, about 5 mg of sample was heated in a nitrogen atmosphere at a temperature rising / falling rate of 20 ° C./min. (1) After raising the temperature from 50 ° C. to 340 ° C., hold at 340 ° C. for 1 minute; (2) Decreasing temperature to 100 ° C; (3) The temperature is again raised to 340 ° C. and then held at 340 ° C. for 1 minute; (4) Lower the temperature to 100 ° C again; The melting peak temperature observed in the step (3) was taken as the melting point (Tm).
- the residual water content in the system per mole of the alkali metal hydrosulfide charged at this time was 1.01 moles including the water consumed for the hydrolysis of NMP.
- the amount of hydrogen sulfide scattered was 1.4 mol
- the amount of the sulfidizing agent in the system after this dehydration step was 68.6 mol.
- the hydrogen sulfide is scattered 1.4 mol of sodium hydroxide is newly generated in the system.
- reaction vessel was cooled to 200 ° C., and 10.08 kg (68.60 mol) of p-dichlorobenzene (p-DCB), 0.32 kg (2.06 mol) of p-chlorobenzoic acid and 9.37 kg of NMP (94 Then, the reaction vessel was sealed under nitrogen gas, and the polymerization step was performed under the following reaction conditions while stirring at 240 rpm. The temperature was raised from 200 ° C. to 230 ° C. at 0.8 ° C./min over 38 minutes. ⁇ Step 1> Subsequently, the temperature was raised from 230 ° C. to 245 ° C. at 0.6 ° C./min over 25 minutes.
- p-DCB p-dichlorobenzene
- NMP 9.37 kg
- T1 was 63 minutes and T1a was 25 minutes.
- the reaction product was sampled at the end of step 1 and the amount of p-DCB remaining in the sample was quantified with a gas chromatograph.
- the p-DCB consumption rate that is, the conversion rate was calculated. It was 64%.
- Step 2 Subsequent to Step 1, the temperature was increased from 245 ° C. to 276 ° C. at 0.6 ° C./min over 52 minutes, and then reacted at a constant temperature of 276 ° C. for 65 minutes.
- T2 was 117 minutes.
- step 2 Immediately after the end of step 2, the bottom valve of the autoclave is opened, the contents are flushed to a device with a stirrer, and in a device with a stirrer at 230 ° C. until 95% or more of NMP used during polymerization is volatilized and removed. The mixture was dried for 1.5 hours to recover a solid containing PPS and salts.
- the obtained recovered material and 74 liters of ion-exchanged water were placed in an autoclave equipped with a stirrer, washed at 75 ° C. for 15 minutes, and then filtered through a filter to obtain a cake.
- the obtained cake was washed with ion-exchanged water at 75 ° C. for 15 minutes and filtered, and the cake, 74 liters of ion-exchanged water and 0.4 kg of acetic acid were placed in an autoclave equipped with a stirrer, and the inside of the autoclave was filled with nitrogen. After the replacement, the temperature was raised to 195 ° C. Thereafter, the autoclave was cooled and the contents were taken out. The contents were filtered through a filter to obtain a cake. The obtained cake was dried at 120 ° C. under a nitrogen stream to obtain dry PPS.
- the residual water content in the system per mole of the alkali metal hydrosulfide charged at this time was 1.01 moles including the water consumed for the hydrolysis of NMP.
- the amount of hydrogen sulfide scattered was 1.4 mol
- the amount of the sulfidizing agent in the system after this dehydration step was 68.6 mol.
- the hydrogen sulfide is scattered 1.4 mol of sodium hydroxide is newly generated in the system.
- reaction vessel was cooled to 200 ° C., and 10.08 kg (68.60 mol) of p-dichlorobenzene (p-DCB) and 9.37 kg (94.50 mol) of NMP were added.
- the polymerization step was performed under the following reaction conditions while stirring at 240 rpm.
- the temperature was raised from 200 ° C. to 230 ° C. at 0.8 ° C./min over 38 minutes.
- Step 1> Subsequently, the temperature was raised from 230 ° C. to 238 ° C. at 0.6 ° C./min over 13 minutes. After performing the reaction for 128 minutes at a constant temperature of 238 ° C., the temperature was raised from 238 ° C.
- Step 2 Immediately after completion of Step 1, 0.32 kg (2.06 mol) of p-chlorobenzoic acid was injected, and following Step 1, from 245 ° C. to 255 ° C. over 12 minutes at 0.8 ° C./min. The temperature rose. The polymerization time (T2) in Step 2 was 12 minutes.
- Glass fiber manufactured by Nippon Electric Glass Co., Ltd. T-747H, 3 mm long, average fiber diameter 10.5 ⁇ m.
- Carbon fiber Spinning, firing treatment and surface oxidation treatment from a copolymer containing polyacrylonitrile as a main component, total number of single yarns 24,000, single fiber diameter 7 ⁇ m, mass per unit length 1.6 g / m, Sizing so that the adhesion amount is 1.0% by mass on continuous carbon fiber having a specific gravity of 1.8 g / cm 3 , a surface oxygen concentration [O / C] of 0.06, a strand tensile strength of 4880 MPa, and a strand tensile modulus of 225 GPa.
- the surface oxygen concentration ratio was determined according to the following procedure by X-ray photoelectron spectroscopy using the carbon fiber after the surface oxidation treatment. First, the carbon fiber bundle was cut into 20 mm, spread and arranged on a copper sample support, and then A1K ⁇ 1,2 was used as an X-ray source, and the inside of the sample chamber was kept at 1 ⁇ 10 ⁇ 8 Torr.
- the kinetic energy value (KE) of the main peak of C1s was adjusted to 1202 eV as a peak correction value associated with charging during measurement.
- the C1s peak area is expressed as K.S. E. It was obtained by drawing a straight base line in the range of 1191 to 1205 eV.
- the O1s peak area is expressed as K.I. E. As a linear base line in the range of 947 to 959 eV.
- the atomic ratio was calculated from the ratio between the O1s peak area and the C1s peak area using the sensitivity correction value inherent to the apparatus.
- a model ES-200 manufactured by Kokusai Electric Inc. was used as the X-ray photoelectron spectroscopy apparatus, and the sensitivity correction value was set to 1.74.
- the filler (B) was charged from the side feeder of the twin-screw extruder at the ratio shown in Table 2 or Table 3.
- the melt kneading was performed under conditions of a temperature of 320 ° C. and a rotation speed of 200 rpm.
- the resin composition discharged from the twin screw extruder was pelletized with a strand cutter, and then dried with hot air at 120 ° C. overnight to obtain pellets of the resin composition.
- the tensile test was performed under the following conditions. Using an injection molding machine (SE75DUZ-C250) manufactured by Sumitomo Heavy Industries, an ASTM No. 1 dumbbell test piece for tensile testing was molded at a resin temperature of 310 ° C. and a mold temperature of 130 ° C., and the obtained test piece was used. Tensile strength was measured in accordance with ASTM D638 under conditions of a distance between fulcrums of 114 mm, a tensile speed of 10 mm / min, a temperature of 23 ° C. and a relative humidity of 50%.
- test piece was immersed in a 50% aqueous solution of long life coolant (LLC), and the tensile strength after treatment at 130 ° C. for 1000 hours was measured under the same conditions, and the tensile strength before immersion was measured. The strength retention was measured.
- LLC long life coolant
- the bending test was performed under the following conditions. Using the injection molding machine, a bending test piece having a length of 127 mm, a width of 12.7 mm, and a thickness of 6.35 mm was molded under the same molding conditions as described above. Using the obtained test piece, the bending strength was measured according to ASTM D790 under the conditions of a distance between supporting points of 100 mm, a crosshead speed of 3 mm / min, a temperature of 23 ° C. and a relative humidity of 50%.
- the weld strength test was performed under the following conditions.
- An ASTM No. 1 dumbbell piece having gates at both ends and a weld line near the center of the test piece was prepared using the injection molding machine under the same molding conditions as described above.
- the tensile strength was measured according to ASTM D638 under conditions of a distance between fulcrums of 114 mm, a tensile speed of 10 mm / min, a temperature of 23 ° C. and a relative humidity of 50%. The value of the tensile strength obtained by this test is taken as the weld strength.
- test piece was immersed in a 50% LLC aqueous solution, the tensile strength after 1000 hours of treatment at 130 ° C. was measured under the same conditions, and the strength retention relative to the tensile strength before immersion was measured as the weld strength. Retention rate.
- Tables 2 and 3 show the measurement results of tensile strength, bending strength, and weld strength.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
(A)カルボキシル基含有量が100μmol/gを超え400μmol/g未満かつ重量平均分子量が10000以上100000未満のポリアリーレンスルフィド樹脂、および(B)充填材を含むポリアリーレンスルフィド樹脂組成物。
本発明のポリアリーレンスルフィド樹脂組成物に用いられるPAS樹脂は、カルボキシル基含有量が100μmol/gを超え400μmol/g未満かつ重量平均分子量が10000以上100000未満のPAS樹脂である。PAS樹脂は、重合反応により調製することが可能であり、以下PASの重合に用いるスルフィド化剤、有機極性溶媒、ジハロゲン化芳香族化合物、モノハロゲン化化合物、重合助剤、分岐・架橋剤、分子量調整剤、重合安定剤、脱水工程、重合工程、ポリマー回収、生成PASの順に説明する。
スルフィド化剤としては、アルカリ金属硫化物、アルカリ金属水硫化物、および硫化水素が挙げられる。取り扱い性、汎用性などから、アルカリ金属硫化物、アルカリ金属水硫化物、およびそれらの混合物が好ましく用いられる。スルフィド化剤は、水和物または水性混合物として、あるいは無水物の形で用いることができる。アルカリ金属水硫化物とアルカリ金属水酸化物から、反応系においてin situで調製されるスルフィド化剤も用いることができる。
重合溶媒として有機極性溶媒を用いる。具体例としては、N-メチル-2-ピロリドン、N-エチル-2-ピロリドンなどのN-アルキルピロリドン類;N-メチル-ε-カプロラクタムなどのカプロラクタム類;1,3-ジメチル-2-イミダゾリジノン、N,N-ジメチルアセトアミド、N,N-ジメチルホルムアミド、ヘキサメチルリン酸トリアミド、ジメチルスルホン、テトラメチレンスルホキシドなどに代表されるアプロチック有機溶媒;およびこれらの混合物などが反応の安定性が高いために好ましく使用される。これらのなかでも、特にN-メチル-2-ピロリドン(NMP)が好ましく用いられる。
PASを製造する際、原料としてジハロゲン化芳香族化合物を用いる。PASの代表であるPPSを製造する際、ベンゼン環と硫黄がポリマーの主骨格となるため、用いるジハロゲン化芳香族化合物としては、p-ジクロロベンゼン、m-ジクロロベンゼン、o-ジクロロベンゼン、p-ジブロモベンゼンなどのジハロゲン化ベンゼンが挙げられる。また、カルボキシル基の導入を目的に、2,4-ジクロロ安息香酸、2,5-ジクロロ安息香酸、2,6-ジクロロ安息香酸、3,5-ジクロロ安息香酸などのカルボキシル基含有ジハロゲン化芳香族化合物、およびそれらの混合物を共重合モノマーとして用いることも好ましい態様の一つである。さらに、本発明の効果を損なわない限り、2,4-ジクロロアニリン、2,5-ジクロロアニリン、2,6-ジクロロアニリン、3,5-ジクロロアニリン、2,4-ジクロロフェノール、2,5-ジクロロフェノール、2,6-ジクロロフェノール、3,5-ジクロロフェノール、1-メトキシ-2,5-ジクロロベンゼン、4,4’-ジクロロフェニルエーテル、4,4’-ジクロロジフェニルスルホキシド、4,4’-ジクロロフェニルケトンなどのジハロゲン化芳香族化合物などを用いることも可能である。なかでも、p-ジクロロベンゼンに代表されるp-ジハロゲン化ベンゼンを主成分とすることが好ましい。また、2,4-ジクロロ安息香酸や2,5-ジクロロ安息香酸に代表されるジハロゲン化安息香酸を共重合成分として一部使用することも好ましい態様の一つであり、高い融点を維持する観点では、2,5-ジクロロ安息香酸がよりこの好ましい共重合成分である。
PASを製造する際、カルボキシル基含有量の多いPASを得る目的でカルボキシル基含有モノハロゲン化化合物を添加することも好ましい態様の一つである。カルボキシル基含有モノハロゲン化化合物としては、カルボキシル基含有モノハロゲン化芳香族化合物が好ましい例として挙げられる。具体的には、2-クロロ安息香酸、3-クロロ安息香酸、4-クロロ安息香酸、4-クロロフタル酸水素ナトリウム、2-アミノ-4-クロロ安息香酸、4-クロロ-3-ニトロ安息香酸、4’-クロロベンゾフェノン-2-カルボン酸などが挙げられる。重合時の反応性や汎用性などから、3-クロロ安息香酸、4-クロロ安息香酸、4-クロロフタル酸水素ナトリウムが好ましいモノハロゲン化化合物として挙げられる。また、本発明の効果を損なわない限り、クロロベンゼン、1-クロロナフタレン、2-クロロアニリン、3-クロロアニリン、4-クロロアニリン、2-クロロフェノール、3-クロロフェノール、4-クロロフェノール、4-クロロベンズアミド、4-クロロベンゼンアセトアミド、4-クロロベンゼンスルホンアミド、4-クロロベンゼンスルホン酸、4-クロロベンゼンチオール、2-アミノ-5-クロロベンゾフェノン、2-アミノ-4-クロロフェノール、2-クロロニトロベンゼン、3-クロロニトロベンゼン、4-クロロニトロベンゼン、4-クロロフタル酸無水物などのモノハロゲン化化合物、およびそれらの混合物を用いることも可能である。
PASを製造する際、重合助剤を用いることも好ましい態様の一つである。重合助剤を用いる目的は、得られるPASを所望の溶融粘度に調整するためである。重合助剤の具体例としては、例えば有機カルボン酸金属塩、水、アルカリ金属塩化物(ただし、塩化ナトリウムは除く)、有機スルホン酸金属塩、硫酸アルカリ金属塩、アルカリ土類金属酸化物、アルカリ金属リン酸塩およびアルカリ土類金属リン酸塩などが挙げられる。これらは単独で用いても2種以上同時に用いても差し障りない。なかでも、有機カルボン酸金属塩および/または水が好ましく用いられる。
PASを製造する際、分岐または架橋重合体を形成させ、得られるPASを所望の溶融粘度に調整するために、トリハロゲン化以上のポリハロゲン化合物などの分岐・架橋剤を併用することも可能である。ポリハロゲン化合物としてはポリハロゲン化芳香族化合物が好ましく、具体例としては、1,3,5-トリクロロベンゼン、1,2,4-トリクロロベンゼンが挙げられる。
PASを製造する際、重合反応系を安定化し、副反応を防止するために、重合安定剤を用いることも可能である。重合安定剤は、重合反応系の安定化に寄与し、チオフェノールの生成など望ましくない副反応を抑制する。重合安定剤の具体例としては、アルカリ金属水酸化物、アルカリ金属炭酸塩、アルカリ土類金属水酸化物、およびアルカリ土類金属炭酸塩などの化合物が挙げられる。そのなかでも、水酸化ナトリウム、水酸化カリウム、および水酸化リチウムなどのアルカリ金属水酸化物が好ましい。前述した有機カルボン酸金属塩も重合安定剤として作用する。また、スルフィド化剤としてアルカリ金属水硫化物を用いる場合には、アルカリ金属水酸化物を同時に使用することが特に好ましいことを前述したが、ここでスルフィド化剤に対して過剰となるアルカリ金属水酸化物も重合安定剤となり得る。
PASを製造する際、スルフィド化剤は通常水和物の形で使用される。ジハロゲン化芳香族化合物やモノハロゲン化化合物を添加する前に、有機極性溶媒とスルフィド化剤を含む混合物を昇温し、過剰量の水を系外に除去することが好ましい。この工程を脱水工程と呼ぶ。この方法には特に制限はないが、望ましくは不活性ガス雰囲気下、常温~150℃、好ましくは常温~100℃の温度範囲で、有機極性溶媒にアルカリ金属水硫化物とアルカリ金属水酸化物を加え、常圧または減圧下、少なくとも150℃以上、好ましくは180℃~260℃まで昇温し、水分を留去させる方法が挙げられる。この段階で重合助剤を加えてもよい。
PASを製造する際、上記脱水工程で調製した反応物と、ジハロゲン化芳香族化合物やモノハロゲン化化合物とを有機極性溶媒中で接触させて重合反応させる重合工程を行う。重合工程開始に際しては、望ましくは不活性ガス雰囲気下、100~220℃、好ましくは130~200℃の温度範囲で、ジハロゲン化芳香族化合物やモノハロゲン化化合物を加える。この段階で重合助剤を加えてもよい。これらの原料の仕込み順序は、順不同であってもよく、同時であってもさしつかえない。
<工程1>230℃以上245℃未満の温度範囲内において、昇降温時間を含めた重合時間(T1a)が30分以上3.5時間未満であり、工程終了時点でのジハロゲン化芳香族化合物の転化率が70~98モル%になるように反応させてPASのプレポリマーを生成させる工程、および
<工程2>245℃以上280℃未満の温度範囲内において、昇降温時間を含めた重合時間(T2)が5分以上1時間未満で前記PASのプレポリマーを反応させてPASを得る工程、
を経る重合条件が挙げられる。
平均昇温速度(℃/分)=[t1(℃)-t2(℃)]/m(分)
で計算される平均速度である。従って、前述した平均昇温速度の範囲内であれば、必ずしも一定速度である必要はなく、定温区間があってもよいし、多段で昇温を行っても差し障り無く、一時的に負の昇温速度となる区間があっても良い。
(a)ジハロゲン化芳香族化合物をスルフィド化剤に対しモル比で過剰に添加した場合
転化率=[〔DHA仕込み量(モル)-DHA残存量(モル)〕/〔DHA仕込み量(モル)-DHA過剰量(モル)〕]×100%
(b)上記(a)以外の場合
転化率=[〔DHA仕込み量(モル)-DHA残存量(モル)〕/〔DHA仕込み量(モル)〕]×100%。
PASを製造する際、重合工程終了後に、重合工程で得られたPAS成分および溶剤などを含む重合反応物からPASを回収する。回収方法としては、例えばフラッシュ法、すなわち重合反応物を高温高圧(通常250℃以上、0.8MPa以上)の状態から常圧もしくは減圧の雰囲気中へフラッシュさせ、溶媒回収と同時に重合体を粉粒状にして回収する方法や、クエンチ法、すなわち重合反応物を高温高圧の状態から徐々に冷却して反応系内のPAS成分を析出させ、かつ70℃以上、好ましくは100℃以上の状態で濾別することでPAS成分を含む固体を回収する方法等が挙げられる。
洗浄液に使用する水は蒸留水あるいは脱イオン水であることが好ましく、PASと洗浄液の割合は、通常、洗浄液1リットルに対し、PAS10~500gの範囲が好ましく選択される。
かくして得られたPASは、カルボキシル基含有量が100μmol/gを超え400μmol/g未満であることが必要である。カルボキシル基含有量は、130μmol/g以上が好ましく、150μmol/g以上がより好ましく、160μmol/g以上がいっそう好ましい範囲である。カルボキシル基含有量は、350μmol/g未満が好ましく、300μmol/g未満がより好ましく、250μmol/g未満がいっそう好ましい範囲である。本発明では、このような範囲のカルボキシル基含有量を有するPASと、充填材を配合して得られるPAS樹脂組成物が、従来にない優れた機械物性や耐薬品性を有することを見出したものである。PASのカルボキシル基含有量が100μmol/g以下であると充填材との相互作用が低下し、得られる樹脂組成物から作成した成形品の機械物性や耐薬品性向上効果が小さくなる。一方、PASのカルボキシル基含有量が400μmol/g以上であると、揮発性成分量が増大する傾向にあるとともに、成形品にボイドが入りやすくなる。また、カルボキシル基含有モノハロゲン化化合物を用いてPASの末端へカルボキシル基を導入する場合に、カルボキシル含有量が400μmol/g以上のPASを得るには、末端に多量のカルボキシル基を導入する必要が有る。すなわち、末端数が多くなるため、PASの分子量が低くなり、本発明に必要な重量平均分子量10000以上100000未満のPASを得るのが困難となる。
本発明において、PASの重量平均分子量は10000以上100000未満が必要である。本発明では、通常のPASより多くカルボキシル基を含有するPASを用いることで、得られる成形品の機械物性や耐薬品性を飛躍的に向上させる。一方でPASの分子量が低いと、PAS自体の機械物性が大幅に低下するため、たとえカルボキシル基含有量が多いとしても、充填材を添加して得られる樹脂組成物から作成する成形品の機械物性や耐薬品性は低下する傾向にある。また、PASの分子量が高すぎると、溶融時の粘度が大幅に増大し、射出成形時に金型に樹脂組成物が入り込めず成形品が得られない傾向にある。PASの重量平均分子量は15000以上が好ましく、16000以上がより好ましく、17000以上がさらに好ましい。PASの重量平均分子量は80000未満が好ましく、60000未満がより好ましく、40000未満がさらに好ましい。
本発明のポリアリーレンスルフィド樹脂組成物は、上記のPASに充填材を配合することが必要である。特定のPASに充填材を添加することで、飛躍的に機械物性や耐薬品性が向上する。充填材としては無機充填材や有機充填材が挙げられる。
平均繊維長(Lw)=Σ(Wi×Li)/ΣWi
=Σ(πri2×Li×ρ×ni×Li)/Σ(πri2×Li×ρ×ni)
繊維径ri、および密度ρが一定である場合、上式は簡略化され、以下の式となる。
平均繊維長(Lw)=Σ(Li2×ni)/Σ(Li×ni)
Li:繊維状充填材の繊維長
ni:繊維長Liの繊維状充填材の本数
Wi:繊維状充填材の重量
ri:繊維状充填材の繊維径
ρ:繊維状充填材の密度。
本発明のポリアリーレンスルフィド樹脂組成物に、オレフィン系共重合体をさらに配合することも好ましい態様の一つである。オレフィン系共重合体としては、エポキシ基、カルボキシル基、酸無水物基、アミノ基、水酸基およびメルカプト基からなる群より選ばれる少なくとも一種の官能基を有するオレフィン系共重合体がより好ましい。中でもエポキシ基含有オレフィン系共重合体が、PAS樹脂との相溶性が良好で高靱性が発現するために、好ましく用いられる。エポキシ基含有オレフィン系共重合体としては、オレフィン系単量体成分にエポキシ基を有する単量体成分を共重合して得られるオレフィン共重合体が挙げられる。また、主鎖中に二重結合を有するオレフィン系共重合体の二重結合部分をエポキシ化した共重合体も使用することができる。
本発明のポリアリーレンスルフィド樹脂組成物において、(A)PAS樹脂100質量部に対し、(D)アルコキシシラン化合物を0.05~5質量部をさらに配合することが好ましい。アルコキシシラン化合物としては、エポキシ基、アミノ基、イソシアネート基、水酸基、メルカプト基およびウレイド基の中から選ばれた少なくとも1種の官能基を有するアルコキシシラン化合物を用いてもよい。該シラン化合物の添加により機械的強度、靱性、低バリ性などの物性が向上する。添加量が少なすぎると物性向上効果が小さく、添加量が多すぎると溶融粘度が上昇し、射出成形が困難となる。そのため、添加量は0.05~3質量部がより好ましい。
PAS樹脂組成物の難燃性を改良するために難燃剤を配合しても良い。難燃剤としては、水酸化アルミニウム、水酸化マグネシウム等の水和金属系難燃剤;およびブロム系難燃剤、塩素系難燃剤、燐系難燃剤、三酸化アンチモン等の無機系難燃剤等が挙げられる。これらの中でも燐系難燃剤が好ましい。
PAS樹脂のカルボキシル基含有量は、フーリエ変換赤外分光装置(以下FT-IRと略す)を用いて算出した。
なお、PPS樹脂にメタフェニレンスルフィド単位を含有している場合、780cm-1に吸収が観察されるが、以下のPPS-1~9では該吸収が観察されなかった。
PAS樹脂の重量平均分子量(Mw)は、ゲルパーミエーションクロマトグラフィー(GPC)を用いて、ポリスチレン換算で算出した。GPCの測定条件を以下に示す。
装置:SSC-7100(センシュー科学)
カラム名:shodex UT-806M
溶離液:1-クロロナフタレン
検出器:示差屈折率検出器
カラム温度:210℃
プレ恒温槽温度:250℃
ポンプ恒温槽温度:50℃
検出器温度:210℃
流量:1.0mL/min
試料注入量:300μL (スラリー状:約0.2質量%)。
ダイアインスツルメンツ社製自動試料燃焼装置AQF-100を用い、PAS樹脂1~2mgを計量した後、最終温度1000℃で燃焼させ、発生したガス成分を希薄な酸化剤を含んだ10mLの水に吸収させた。吸収液を炭酸ナトリウム/炭酸水素ナトリウム混合水溶液を移動相とするDIONEX社製イオンクロマトグラフィーシステムICS1500に供し、吸収液に含まれる塩素量を測定した。測定に供したPAS樹脂の質量と、吸収液中の塩素量から、PAS樹脂の全塩素含有量を算出した。
腹部が100mm×25mmφ、首部が255mm×12mmφ、肉厚が1mmのガラスアンプルにPAS樹脂3gを計り入れてから、ガラスアンプルを真空封入した。このガラスアンプルの胴部のみを、アサヒ理化製作所製のセラミックス電気管状炉ARF-30Kに挿入して320℃で2時間加熱した。PAS樹脂から揮発した、揮発性ガスが、ガラスアンプルの管状炉によって加熱されていない部分に付着した。アンプルを取り出した後、揮発性ガスの付着したアンプル首部をヤスリで切り出して秤量した。次いで付着ガスを5gのクロロホルムで溶解して除去した後、60℃のガラス乾燥機で1時間乾燥してから、該アンプル首部を再度秤量した。ガスを除去した前後のアンプル首部の質量差から揮発性成分量(ポリマーに対する質量%)を算出した。
[融点]
パーキンエルマー社製DSC7を用い、サンプル約5mgを、窒素雰囲気下、昇温・降温速度20℃/分で、
(1)50℃から340℃まで昇温した後、340℃で1分間ホールド;
(2)100℃まで降温;
(3)再度340℃まで昇温した後、340℃で1分間ホールド;
(4)再度100℃まで降温;
した際、(3)の工程で観測される融解ピーク温度を融点(Tm)とした。
以下の合成例1~9にてPPS-1~9を合成した。合成したPPSの各種物性を表1に示す。
撹拌機および底栓弁付きの70リットルオートクレーブに、47.5%水硫化ナトリウム8.26kg(70.00モル)、96%水酸化ナトリウム3.03kg(72.69モル)、N-メチル-2-ピロリドン(NMP)11.45kg(115.50モル)、およびイオン交換水5.50kgを仕込み、常圧で窒素を通じながら、反応容器を225℃まで約3時間かけて徐々に加熱して脱水工程を行った。水9.82kgおよびNMP0.28kgが留出した時点で加熱を終え、冷却を開始した。この時点での仕込みアルカリ金属水硫化物1モル当たりの系内残存水分量は、NMPの加水分解に消費された水分を含めて1.01モルであった。また、硫化水素の飛散量は1.4モルであったため、本脱水工程後の系内のスルフィド化剤の量は68.6モルであった。なお、硫化水素の飛散に伴い、系内には水酸化ナトリウムが新たに1.4モル生成している。
200℃から230℃までを0.8℃/分で38分かけて昇温した。
<工程1>引き続き230℃から245℃までを0.6℃/分で25分かけて昇温した。T1は63分、T1aは25分であった。工程1終了時に反応物をサンプリングし、サンプル中に残存するp-DCB量をガスクロマトグラフにて定量した結果からp-DCBの消費率、つまり転化率を算出したところ、p-DCBの転化率は64%であった。
<工程2>工程1に引き続き、245℃から276℃までを0.6℃/分で52分かけて昇温し、その後276℃の定温状態で65分反応を行った。T2は117分であった。
以下の反応条件で工程1と工程2を行ったこと以外は合成例1と同様の操作を行った。
<工程1>230℃から238℃までを0.6℃/分で13分かけて昇温した。238℃の定温状態で128分反応を行った後、238℃から245℃までを0.8℃/分で9分かけて昇温した。T1は188分、T1aは150分であった。p-DCBの転化率は94.5%であった。
<工程2>工程1に引き続き、245℃から255℃までを0.8℃/分で12分かけて昇温した。工程2の重合時間(T2)は12分であった。
p-クロロ安息香酸のかわりに、2,5-ジクロロ安息香酸を0.39kg(2.06モル)加えたこと以外は、合成例2と同様の操作を行った。工程1終了時のp-DCBの転化率は94.5%であった。
96%水酸化ナトリウムを3.09kg(74.06モル)加えて脱水工程を行い、p-DCBを9.98kg(67.91モル)、2,5-ジクロロ安息香酸を0.66kg(3.43モル)加えたこと以外は、合成例3と同様の操作を行った。工程1終了時のp-DCBの転化率は94%であった。
96%水酸化ナトリウムを2.94kg(70.63モル)加えて脱水工程を行い、p-DCBを10.39kg(70.66モル)加え、p-クロロ安息香酸は加えなかったこと以外は、合成例1と同様の操作を行った。工程1終了時のp-DCBの転化率は65%であった。
96%水酸化ナトリウムを2.94kg(70.63モル)加えて脱水工程を行い、p-DCBを10.39kg(70.66モル)加え、p-クロロ安息香酸は加えなかったこと以外は、合成例2と同様の操作を行った。工程1終了時のp-DCBの転化率は93%であった。
96%水酸化ナトリウムを2.99kg(71.83モル)加えて脱水工程を行い、p-DCBを10.19kg(69.29モル)加え、p-クロロ安息香酸は0.19kg(1.20モル)加えたこと以外は、合成例2と同様の操作を行った。工程1終了時のp-DCBの転化率は95%であった。
96%水酸化ナトリウムを3.23kg(77.49モル)加えて脱水工程を行い、p-DCBを9.68kg(65.86モル)加え、p-クロロ安息香酸は1.07kg(6.86モル)加えたこと以外は、合成例2と同様の操作を行った。工程1終了時のp-DCBの転化率は92.5%であった。
撹拌機および底栓弁付きの70リットルオートクレーブに、47.5%水硫化ナトリウム8.26kg(70.00モル)、96%水酸化ナトリウム3.03kg(72.69モル)、N-メチル-2-ピロリドン(NMP)11.45kg(115.50モル)、およびイオン交換水5.50kgを仕込み、常圧で窒素を通じながら、反応容器を225℃まで約3時間かけて徐々に加熱して脱水工程を行った。水9.82kgおよびNMP0.28kgが留出した時点で加熱を終え、冷却を開始した。この時点での仕込みアルカリ金属水硫化物1モル当たりの系内残存水分量は、NMPの加水分解に消費された水分を含めて1.01モルであった。また、硫化水素の飛散量は1.4モルであったため、本脱水工程後の系内のスルフィド化剤の量は68.6モルであった。なお、硫化水素の飛散に伴い、系内には水酸化ナトリウムが新たに1.4モル生成している。
200℃から230℃までを0.8℃/分で38分かけて昇温した。
<工程1>引き続き230℃から238℃までを0.6℃/分で13分かけて昇温した。238℃の定温状態で128分反応を行った後、238℃から245℃までを0.8℃/分で9分かけて昇温した。T1は188分、T1aは150分であった。p-DCBの転化率は94.5%であった。
<工程2>工程1終了後、直ちにp-クロロ安息香酸0.32kg(2.06モル)を圧入し、工程1に引き続き、245℃から255℃までを0.8℃/分で12分かけて昇温した。工程2の重合時間(T2)は12分であった。
ガラス繊維:日本電気硝子社製 T-747H、3mm長、平均繊維径10.5μm。
炭素繊維:ポリアクリロニトリルを主成分とする共重合体から紡糸、焼成処理および表面酸化処理を行い、総単糸数24,000本、単繊維径7μm、単位長さ当たりの質量1.6g/m、比重1.8g/cm3、表面酸素濃度[O/C]0.06、ストランド引張強度は4880MPa、ストランド引張弾性率は225GPaの連続炭素繊維に、付着量が1.0質量%となるようサイジング剤であるポリグリセロールポリグリシジルエーテル(エポキシ当量140g/eq)を付着させ、200℃で乾燥を行った後、ロータリーカッターで平均繊維長6.0mmにカットした炭素繊維。
なお、表面酸素濃度比は、表面酸化処理を行ったあとの炭素繊維を用いて、X線光電子分光法により、次の手順にしたがって求めた。まず、炭素繊維束を20mmにカットして、銅製の試料支持台に拡げて並べた後、X線源としてA1Kα1、2を用い、試料チャンバー中を1×10-8Torrに保った。測定時の帯電に伴うピークの補正値としてC1sの主ピークの運動エネルギー値(K.E.)を1202eVに合わせた。C1sピーク面積をK.E.として1191~1205eVの範囲で直線のベースラインを引くことにより求めた。O1sピーク面積をK.E.として947~959eVの範囲で直線のベースラインを引くことにより求めた。O1sピーク面積とC1sピーク面積の比から装置固有の感度補正値を用いて原子数比として算出した。X線光電子分光法装置として、国際電気社製モデルES-200を用い、感度補正値を1.74とした。
エチレン/グリシジルメタクリレート=88/12(質量%)共重合体(住友化学社製 ボンドファスト-E)
[(D)アルコキシシラン化合物]
β-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン(信越化学工業社製 KBM303)
[実施例1~10、比較例1~6]
(B)充填材以外の材料を予め表2または表3に示す割合でドライブレンドした後、日本製鋼所社製TEX30α型二軸押出機(L/D=30)の元込め部に投入した。一方、(B)充填材は表2または表3に示す割合で該二軸押出機のサイドフィーダーから投入をおこなった。溶融混練は、温度320℃、回転数200rpmの条件で実施した。溶融混練後、二軸押出機から吐出された樹脂組成物をストランドカッターによりペレット化した後、120℃にて1晩熱風乾燥して、樹脂組成物のペレットを得た。
Claims (8)
- (A)カルボキシル基含有量が100μmol/gを超え400μmol/g未満かつ重量平均分子量が10000以上100000未満のポリアリーレンスルフィド樹脂、および(B)充填材を含むポリアリーレンスルフィド樹脂組成物。
- p-アリーレンスルフィド単位が90モル%以上のポリアリーレンスルフィド樹脂である請求項1記載のポリアリーレンスルフィド樹脂組成物。
- (B)充填材が繊維状無機充填材である請求項1または2いずれか記載のポリアリーレンスルフィド樹脂組成物。
- 前記(A)ポリアリーレンスルフィド樹脂が、真空下320℃×2時間加熱溶融した際に揮発する揮発性成分量が1.0質量%以下のポリアリーレンスルフィド樹脂である請求項1~3のいずれか記載のポリアリーレンスルフィド樹脂組成物。
- 前記(A)ポリアリーレンスルフィド樹脂100質量部に対し、(B)充填材を10~250質量部含む請求項1~4のいずれか記載のポリアリーレンスルフィド樹脂組成物。
- 前記(A)ポリアリーレンスルフィド樹脂100質量部に対し、さらに(C)オレフィン系共重合体1~30質量部を配合してなる請求項1~5のいずれか記載のポリアリーレンスルフィド樹脂組成物。
- (C)オレフィン系共重合体が、エポキシ基、カルボキシル基、酸無水物基、アミノ基、水酸基、およびメルカプト基からなる群より選ばれる少なくとも一種の官能基を有するオレフィン系共重合体である請求項6記載のポリアリーレンスルフィド樹脂組成物。
- (A)ポリアリーレンスルフィド樹脂100質量部に対し、さらに(D)アルコキシシラン化合物を0.05~5質量部を配合してなる請求項1~7のいずれか記載のポリアリーレンスルフィド樹脂組成物。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/024,748 US9938407B2 (en) | 2013-09-27 | 2014-09-25 | Polyarylene sulfide resin composition |
JP2014549237A JP5831648B2 (ja) | 2013-09-27 | 2014-09-25 | ポリアリーレンスルフィド樹脂組成物 |
EP14849883.5A EP3050928B1 (en) | 2013-09-27 | 2014-09-25 | Polyarylene sulfide resin composition |
KR1020167006081A KR102224074B1 (ko) | 2013-09-27 | 2014-09-25 | 폴리아릴렌 설파이드 수지 조성물 |
CN201480052149.2A CN105555871B (zh) | 2013-09-27 | 2014-09-25 | 聚芳撑硫醚树脂组合物 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-201410 | 2013-09-27 | ||
JP2013201410 | 2013-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015046324A1 true WO2015046324A1 (ja) | 2015-04-02 |
Family
ID=52743458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/075418 WO2015046324A1 (ja) | 2013-09-27 | 2014-09-25 | ポリアリーレンスルフィド樹脂組成物 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9938407B2 (ja) |
EP (1) | EP3050928B1 (ja) |
JP (1) | JP5831648B2 (ja) |
KR (1) | KR102224074B1 (ja) |
CN (1) | CN105555871B (ja) |
HU (1) | HUE043163T2 (ja) |
WO (1) | WO2015046324A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017066261A (ja) * | 2015-09-30 | 2017-04-06 | 東レ株式会社 | ポリアリーレンスルフィドおよびその製造方法 |
JP2017190426A (ja) * | 2016-04-15 | 2017-10-19 | 帝人株式会社 | 樹脂組成物およびその製造方法 |
JP2019131685A (ja) * | 2018-01-31 | 2019-08-08 | 東レ株式会社 | ポリフェニレンスルフィド樹脂組成物 |
JP2020083943A (ja) * | 2018-11-19 | 2020-06-04 | 東ソー株式会社 | ポリアリーレンスルフィド組成物およびそれからなるガスケット |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2881638A1 (de) | 2013-12-09 | 2015-06-10 | HILTI Aktiengesellschaft | Vorrichtung zur Durchführung von Rohren oder Kabeln durch eine Gebäudeföffnung |
JP6896731B2 (ja) | 2015-12-11 | 2021-06-30 | ティコナ・エルエルシー | ポリアリーレンスルフィド組成物 |
JP7022586B2 (ja) | 2015-12-11 | 2022-02-18 | ティコナ・エルエルシー | 架橋可能なポリアリーレンスルフィド組成物 |
CN108883600B (zh) | 2016-03-24 | 2021-08-06 | 提克纳有限责任公司 | 复合结构体 |
KR102094448B1 (ko) * | 2017-05-15 | 2020-03-27 | 주식회사 엘지화학 | 폴리아릴렌 설파이드의 제조방법 |
KR102088007B1 (ko) * | 2017-09-20 | 2020-03-11 | 주식회사 엘지화학 | 폴리아릴렌 설파이드의 제조방법 |
KR102196506B1 (ko) * | 2017-10-20 | 2020-12-29 | 주식회사 엘지화학 | 폴리아릴렌 설파이드의 제조 방법 |
MY197693A (en) * | 2018-01-31 | 2023-07-05 | Toray Industries | Polyarylene sulfide copolymer and method of producing the same |
KR102251404B1 (ko) * | 2018-07-03 | 2021-05-12 | 주식회사 엘지화학 | 폴리아릴렌 설파이드의 제조 방법 |
KR102250242B1 (ko) * | 2018-07-04 | 2021-05-10 | 주식회사 엘지화학 | 폴리아릴렌 설파이드의 제조 방법 |
KR102251791B1 (ko) * | 2018-10-26 | 2021-05-13 | 주식회사 엘지화학 | 폴리아릴렌 설파이드의 제조 방법 |
CN113039244B (zh) * | 2018-12-24 | 2023-06-20 | 东丽先端材料研究开发(中国)有限公司 | 聚苯硫醚树脂组合物及其成型品 |
KR20220043077A (ko) * | 2019-07-31 | 2022-04-05 | 도레이 카부시키가이샤 | 섬유 강화 폴리아릴렌설파이드 공중합체 복합 기재, 그 제조 방법, 그것을 포함하는 성형품 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0418422A (ja) | 1990-05-11 | 1992-01-22 | Tonen Corp | 置換ポリアリーレンサルファイド樹脂およびその製法 |
JPH04159365A (ja) * | 1990-10-22 | 1992-06-02 | Tosoh Corp | 樹脂組成物 |
JPH04372624A (ja) | 1991-06-21 | 1992-12-25 | Tonen Corp | 変性ポリアリ−レンサルファイドの製造方法 |
JPH05502055A (ja) * | 1990-05-15 | 1993-04-15 | ゼネラル エレクトリック カンパニイ | カルボキシ官能化ポリフエニレン樹脂と、エチレン―グリシジルメタクリレート共重体とのブレンド |
JPH05170907A (ja) | 1991-12-25 | 1993-07-09 | Mitsubishi Petrochem Co Ltd | カルボキシル基含有ポリフェニレンスルフィドの製造方法 |
JPH05186688A (ja) * | 1992-01-09 | 1993-07-27 | Dainippon Ink & Chem Inc | 樹脂組成物の製造法 |
JPH08208849A (ja) * | 1995-02-01 | 1996-08-13 | Tosoh Corp | ポリアリーレンスルフィド複合材料およびその製造方法 |
JPH08283413A (ja) * | 1995-04-12 | 1996-10-29 | Dainippon Ink & Chem Inc | ポリフェニレンスルフィド共重合体アイオノマーの製法 |
JP2001279097A (ja) | 2000-03-31 | 2001-10-10 | Dainippon Ink & Chem Inc | ポリアリーレンスルフィド組成物 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0495457B1 (en) * | 1991-01-14 | 1996-06-12 | Kureha Kagaku Kogyo Kabushiki Kaisha | Composition comprising polyarylene sulfide and polyamide |
JPH05295346A (ja) | 1991-04-30 | 1993-11-09 | Kureha Chem Ind Co Ltd | ポリアリーレンスルフィドの接着用樹脂及び接着剤 |
EP0905192B1 (de) | 1997-09-24 | 2005-09-14 | Ticona GmbH | Synthese von Copolymeren aus einem Polyarylensulfid und einem aromatischen Polyester sowie deren Verwendung zur Kompatilisierung von Blends |
JP3624077B2 (ja) * | 1997-09-29 | 2005-02-23 | ポリプラスチックス株式会社 | ポリアリーレンサルファイド樹脂組成物 |
JP4614024B2 (ja) * | 2000-03-31 | 2011-01-19 | Dic株式会社 | ポリアリーレンスルフィド組成物 |
EP2053074B1 (en) * | 2006-08-17 | 2015-11-18 | DIC Corporation | Method for producing acid radical-containing polyarylene sulfide resin |
JP4961970B2 (ja) * | 2006-11-24 | 2012-06-27 | Dic株式会社 | ポリアリ−レンスルフィド樹脂組成物 |
JP5012007B2 (ja) * | 2006-12-27 | 2012-08-29 | Dic株式会社 | ポリアリ−レンスルフィド樹脂組成物の製造方法 |
JP2008214383A (ja) | 2007-02-28 | 2008-09-18 | Dic Corp | ポリアリ−レンスルフィド樹脂組成物 |
JP5029881B2 (ja) | 2007-03-29 | 2012-09-19 | Dic株式会社 | ポリアリーレンスルフィド樹脂組成物 |
US8680230B2 (en) | 2008-07-22 | 2014-03-25 | Kureha Corporation | Production process of poly(arylene sulfide) whose content of terminal halogen group has been reduced |
EP2357212A1 (en) * | 2008-11-21 | 2011-08-17 | DIC Corporation | Polyarylene sulfide resin composition and fluid pipe material |
JP5516383B2 (ja) | 2009-12-24 | 2014-06-11 | 東レ株式会社 | ポリアリーレンスルフィドの製造方法 |
BR112012029664A2 (pt) | 2010-05-26 | 2016-08-02 | Dainippon Ink & Chemicals | composição de resina para artigo moldado por sopro oco, artigo moldado por sopro oco, e método de produção do artigo moldado por sopro oco |
CN102337675B (zh) * | 2010-07-23 | 2015-03-18 | 东丽纤维研究所(中国)有限公司 | 一种耐化学药品的聚苯硫醚纤维及其生产方法 |
MY177797A (en) | 2010-10-29 | 2020-09-23 | Toray Industries | Method for producing polyarylene sulfide, and polyarylene sulfide |
WO2012088375A2 (en) * | 2010-12-22 | 2012-06-28 | Ticona Llc | Fiber reinforced shaped articles and process for making same |
JP2012177015A (ja) | 2011-02-25 | 2012-09-13 | Polyplastics Co | ポリアリーレンサルファイド樹脂組成物 |
JP5760756B2 (ja) | 2011-06-30 | 2015-08-12 | 東レ株式会社 | ポリアリーレンスルフィドおよびその製造方法 |
-
2014
- 2014-09-25 KR KR1020167006081A patent/KR102224074B1/ko active IP Right Grant
- 2014-09-25 JP JP2014549237A patent/JP5831648B2/ja active Active
- 2014-09-25 EP EP14849883.5A patent/EP3050928B1/en active Active
- 2014-09-25 US US15/024,748 patent/US9938407B2/en active Active
- 2014-09-25 CN CN201480052149.2A patent/CN105555871B/zh active Active
- 2014-09-25 HU HUE14849883A patent/HUE043163T2/hu unknown
- 2014-09-25 WO PCT/JP2014/075418 patent/WO2015046324A1/ja active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0418422A (ja) | 1990-05-11 | 1992-01-22 | Tonen Corp | 置換ポリアリーレンサルファイド樹脂およびその製法 |
JPH05502055A (ja) * | 1990-05-15 | 1993-04-15 | ゼネラル エレクトリック カンパニイ | カルボキシ官能化ポリフエニレン樹脂と、エチレン―グリシジルメタクリレート共重体とのブレンド |
JPH04159365A (ja) * | 1990-10-22 | 1992-06-02 | Tosoh Corp | 樹脂組成物 |
JPH04372624A (ja) | 1991-06-21 | 1992-12-25 | Tonen Corp | 変性ポリアリ−レンサルファイドの製造方法 |
JPH05170907A (ja) | 1991-12-25 | 1993-07-09 | Mitsubishi Petrochem Co Ltd | カルボキシル基含有ポリフェニレンスルフィドの製造方法 |
JPH05186688A (ja) * | 1992-01-09 | 1993-07-27 | Dainippon Ink & Chem Inc | 樹脂組成物の製造法 |
JPH08208849A (ja) * | 1995-02-01 | 1996-08-13 | Tosoh Corp | ポリアリーレンスルフィド複合材料およびその製造方法 |
JPH08283413A (ja) * | 1995-04-12 | 1996-10-29 | Dainippon Ink & Chem Inc | ポリフェニレンスルフィド共重合体アイオノマーの製法 |
JP2001279097A (ja) | 2000-03-31 | 2001-10-10 | Dainippon Ink & Chem Inc | ポリアリーレンスルフィド組成物 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017066261A (ja) * | 2015-09-30 | 2017-04-06 | 東レ株式会社 | ポリアリーレンスルフィドおよびその製造方法 |
JP2017190426A (ja) * | 2016-04-15 | 2017-10-19 | 帝人株式会社 | 樹脂組成物およびその製造方法 |
JP2019131685A (ja) * | 2018-01-31 | 2019-08-08 | 東レ株式会社 | ポリフェニレンスルフィド樹脂組成物 |
JP7151086B2 (ja) | 2018-01-31 | 2022-10-12 | 東レ株式会社 | ポリフェニレンスルフィド樹脂組成物 |
JP2020083943A (ja) * | 2018-11-19 | 2020-06-04 | 東ソー株式会社 | ポリアリーレンスルフィド組成物およびそれからなるガスケット |
JP7243143B2 (ja) | 2018-11-19 | 2023-03-22 | 東ソー株式会社 | ポリアリーレンスルフィド組成物およびそれからなるガスケット |
Also Published As
Publication number | Publication date |
---|---|
EP3050928A1 (en) | 2016-08-03 |
HUE043163T2 (hu) | 2019-08-28 |
EP3050928B1 (en) | 2019-01-09 |
KR20160065815A (ko) | 2016-06-09 |
KR102224074B1 (ko) | 2021-03-08 |
EP3050928A4 (en) | 2017-04-19 |
CN105555871A (zh) | 2016-05-04 |
US9938407B2 (en) | 2018-04-10 |
US20160244612A1 (en) | 2016-08-25 |
CN105555871B (zh) | 2018-09-25 |
JP5831648B2 (ja) | 2015-12-09 |
JPWO2015046324A1 (ja) | 2017-03-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5831648B2 (ja) | ポリアリーレンスルフィド樹脂組成物 | |
JP5582244B2 (ja) | ポリフェニレンスルフィド樹脂組成物、該樹脂組成物の成形品、および該樹脂組成物の製造方法 | |
JP5982824B2 (ja) | 熱可塑性樹脂組成物の製造方法、熱可塑性樹脂組成物および成形品 | |
JP5218706B1 (ja) | ポリフェニレンスルフィド樹脂組成物およびそれからなる成形品 | |
JP6707810B2 (ja) | ポリフェニレンスルフィド樹脂組成物からなる自動車用冷却モジュール | |
JP6705209B2 (ja) | ポリフェニレンスルフィド樹脂組成物からなる配管部品 | |
KR102429089B1 (ko) | 폴리페닐렌설피드 수지 조성물, 그 제조 방법 및 성형품 | |
JP7067052B2 (ja) | ポリフェニレンスルフィド樹脂組成物および成形品 | |
JP2018053118A (ja) | ポリアリーレンスルフィド樹脂組成物およびその製造方法 | |
JP5131125B2 (ja) | ポリフェニレンサルファイド樹脂組成物および成形体 | |
JP2018141074A (ja) | ポリフェニレンサルファイド樹脂組成物および成形品 | |
JP2010070656A (ja) | ポリフェニレンサルファイド樹脂組成物およびそれからなる成形品 | |
JP2008222889A (ja) | ポリアリーレンスルフィド樹脂組成物 | |
JP2006219665A (ja) | ポリアリーレンスルフィド樹脂組成物 | |
CN111315824A (zh) | 聚苯硫醚树脂组合物、其制造方法及成型体 | |
JP2016145323A (ja) | ポリアリーレンスルフィド樹脂組成物 | |
KR20220104680A (ko) | 자동차 냉각 부품용 폴리페닐렌설파이드 수지 조성물 및 자동차 냉각 부품 | |
JP2020105261A (ja) | ポリフェニレンスルフィド樹脂組成物および成形品 | |
JP6798130B2 (ja) | ポリアリーレンスルフィド樹脂組成物 | |
WO2022210350A1 (ja) | ポリフェニレンスルフィド樹脂組成物およびその製造方法 | |
JP7452192B2 (ja) | ポリフェニレンスルフィド樹脂組成物、製造方法および成形品 | |
JP2020105515A (ja) | ポリフェニレンスルフィド樹脂組成物および成形体 | |
CN114729188A (zh) | 汽车冷却部件用聚苯硫醚树脂组合物及汽车冷却部件 | |
JP2016046095A (ja) | ポリフェニレンスルフィド樹脂組成物からなる高耐電圧コネクター | |
JP2023068631A (ja) | ポリフェニレンサルファイド樹脂組成物および成形品 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480052149.2 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2014549237 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14849883 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2014849883 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014849883 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20167006081 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15024748 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |