WO2013061622A1 - Composition de résine thermoplastique destinée à des composants isolants et composant isolant - Google Patents

Composition de résine thermoplastique destinée à des composants isolants et composant isolant Download PDF

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Publication number
WO2013061622A1
WO2013061622A1 PCT/JP2012/053185 JP2012053185W WO2013061622A1 WO 2013061622 A1 WO2013061622 A1 WO 2013061622A1 JP 2012053185 W JP2012053185 W JP 2012053185W WO 2013061622 A1 WO2013061622 A1 WO 2013061622A1
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Prior art keywords
parts
mass
resin composition
thermoplastic resin
polybutylene terephthalate
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PCT/JP2012/053185
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English (en)
Japanese (ja)
Inventor
伸 沢野
大輔 下田
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パナソニック株式会社
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Priority to JP2012511866A priority Critical patent/JP5091367B1/ja
Publication of WO2013061622A1 publication Critical patent/WO2013061622A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477—Six-membered rings
    • C08K5/3492—Triazines
    • C08K5/34928—Salts
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K3/2279—Oxides; Hydroxides of metals of antimony
    • 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
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0066—Flame-proofing or flame-retarding additives
    • 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • 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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3415—Five-membered rings
    • C08K5/3417—Five-membered rings condensed with carbocyclic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters
    • H01B3/422—Linear saturated polyesters derived from dicarboxylic acids and dihydroxy compounds
    • H01B3/423—Linear aromatic polyesters

Definitions

  • the present invention relates to a thermoplastic resin composition for insulating parts and an insulating part using the same.
  • Polybutylene terephthalate (PBT) resin has excellent mechanical properties, electrical properties, heat resistance, weather resistance, water resistance, chemical resistance and solvent resistance. It is widely used for various applications such as. Numerous technologies have also been developed for improving the flame retardancy.
  • flame retardant polybutylene terephthalate (PBT) resin can also satisfy the UL-94 standard of Underwriter's Laboratories Inc. at a test piece thickness of 0.3 mm. For this reason, it is widely used for electrical insulation parts such as a relay case which is a thin molded product. In addition, the comparative tracking index (CTI) is improved.
  • the response to the IEC 60695-2 standard of the International Electrotechnical Commission is not necessarily sufficiently advanced.
  • IEC International Electrotechnical Commission
  • insulating material parts used in electrical and electronic equipment are required to be resistant to ignition and flame propagation during operation.
  • parts of equipment that operate without an operator such as white goods, support connections with a rated current exceeding 0.2 A, or are within a distance of 3 mm from these connections
  • the demand for safety of electrical insulation parts is increasing.
  • the ignition temperature Glow-wire-Ignition Temperature, abbreviation: GWIT
  • GWIT Low-wire-Ignition Temperature
  • a resin material for insulating parts in addition to the resistance to the combustion test of GWIT 775 ° C., a material satisfying a good balance in terms of flame retardancy, tracking resistance, and mechanical properties is required. Yes.
  • a halogen-containing flame retardant such as halogenated benzyl acrylate and an inorganic flame retardant aid such as antimony trioxide are added to polybutylene terephthalate (PBT) resin.
  • PBT polybutylene terephthalate
  • a composition using a combination and a specific graft copolymer is known (Patent Document 1).
  • Patent Document 2 discloses an insulating material part having a resin molded part formed using a resin composition in which polybutylene terephthalate (PBT) resin is blended with polyhalogenated benzyl (meth) acrylate and antimony pentoxide. The temperature is improved.
  • the resin part of 2 mm or less is intended to improve the GWIT temperature described in the IEC60695-2-13 standard by combining a heat-resistant plate such as metal, and the same as a polybutylene terephthalate (PBT) resin composition alone. It does not satisfy the standard.
  • Patent Document 3 it is proposed that a polybutylene terephthalate (PBT) resin can meet the standard of GWIT 775 ° C. by blending a liquid crystalline polymer known as a flame retardant means of a thermoplastic resin. There is also.
  • PBT polybutylene terephthalate
  • a polybutylene terephthalate (PBT) resin composition is intended to increase the temperature corresponding to the GWIT standard.
  • PBT polybutylene terephthalate
  • blending of a liquid crystalline polymer is essential.
  • the liquid crystalline polymer has a relatively high melting point, and it is not always easy to handle the preparation of the composition. Moreover, it becomes a factor of high cost.
  • in order to raise the compatibility with a GWIT flame-retardant test it is necessary to raise the compounding ratio of glass fiber, and this has the problem that a moldability may be restrict
  • the present invention requires almost all tests for insulating parts without the need for blending a specific component called a liquid crystalline polymer in Patent Document 3 or using glass fibers at a high blending ratio.
  • a thermoplastic resin composition for insulating parts that can achieve strength characteristics equivalent to or better than the GWIT 775 ° C standard in one thickness, and has a good balance between tracking resistance and mechanical characteristics, and insulating parts using the same. Is an issue.
  • thermoplastic resin composition for insulating parts of the present invention comprises (A) a polybutylene terephthalate resin (a1) alone or a polybutylene terephthalate resin (a1) and a polyethylene terephthalate resin (a2).
  • Polybutylene terephthalate resin comprising both, (B) halogen flame retardant, (C) flame retardant auxiliary, (D) moisture content is 20% by mass or more, and dehydration start temperature is 300 ° C. or more.
  • a mineral filler and (E) a glass fiber reinforcing agent, and (B) a halogen-based flame retardant content is 15 to 35 parts by mass with respect to 100 parts by mass of (A) polybutylene terephthalate resin, (D) The content of the mineral filler is 2 to 60 parts by mass with respect to 100 parts by mass of the (A) polybutylene terephthalate resin.
  • the mass ratio of the polybutylene terephthalate resin (a1) to the polyethylene terephthalate resin (a2) is 95/5 to 60/40 as (a1) / (a2). preferable.
  • the halogen flame retardant is at least selected from a halogenated epoxy resin, a halogenated aromatic bisimide compound, a halogenated benzyl acrylate, a halogenated polystyrene, and a halogenated phenylethane.
  • a halogenated epoxy resin a halogenated aromatic bisimide compound
  • a halogenated benzyl acrylate a halogenated polystyrene
  • a halogenated phenylethane a halogenated phenylethane.
  • One type is preferable.
  • the flame retardant aid (C) contains melamine cyanurate and antimony oxide.
  • the content of melamine cyanurate is 15 to 50 parts by mass with respect to 100 parts by mass of (A) polybutylene terephthalate resin, and the mass ratio of antimony oxide to melamine cyanurate is It is preferably 0.05 to 0.85.
  • the mineral filler is preferably colemanite.
  • the content of (E) glass fiber reinforcing agent is preferably 10 to 100 parts by mass with respect to 100 parts by mass of (A) polybutylene terephthalate resin.
  • thermoplastic resin composition for insulating parts it is preferable that the red-hot rod ignition temperature of 775 ° C. or higher described in IEC60695-2-13 is satisfied for any of the test piece thicknesses of 0.75 mm, 1.5 mm, and 3 mm.
  • the insulating component of the present invention is characterized in that at least a part thereof is constituted by the above thermoplastic resin composition for insulating components.
  • thermoplastic resin composition for insulating parts of the present invention and the insulating parts using the same, insulation without requiring the use of a specific component such as a liquid crystalline polymer or the use of glass fiber at a high mixing ratio. It is possible to realize strength characteristics equivalent to or higher than those of the GWIT 775 ° C. standard for almost all test specimen thicknesses for parts, and a good balance between tracking resistance and mechanical characteristics.
  • the mixing of the component (D) mineral filler makes it difficult for the test piece to ignite when a 750 ° C. red hot rod is pressed against the test piece, even in the case of a 1.5 mm test piece.
  • PBT resin Polybutylene terephthalate (PBT) resin as the essential component (a1) in the thermoplastic resin composition for insulating parts of the present invention (hereinafter referred to as PBT resin).
  • PBT resin a thermoplastic resin obtained by polycondensation of terephthalic acid or its ester-forming derivative and C 4 alkylene glycol (1,4-butanediol) or its ester-forming derivative.
  • the PBT resin may be a copolymer containing 70% by mass or more of a butylene terephthalate repeating unit.
  • dibasic acid components other than terephthalic acid or ester-forming derivatives thereof (lower alcohol ester, etc.)
  • aliphatics such as isophthalic acid, naphthalenedicarboxylic acid, adipic acid, sebacic acid, trimellitic acid, succinic acid, Aromatic polybasic acids or ester-forming derivatives thereof.
  • glycol components other than 1,4-butanediol include ordinary alkylene glycols such as ethylene glycol, diethylene glycol, propylene glycol, trimethylene glycol, hexamethylene glycol, neopentyl glycol, cyclohexanedimethanol, and 1,3-octane.
  • ordinary alkylene glycols such as ethylene glycol, diethylene glycol, propylene glycol, trimethylene glycol, hexamethylene glycol, neopentyl glycol, cyclohexanedimethanol, and 1,3-octane.
  • Lower alkylene glycol such as diol, aromatic alcohol such as bisphenol A, 4,4′-dihydroxybiphenyl, alkylene oxide adduct alcohol such as ethylene oxide 2 mol adduct of bisphenol A, propylene oxide 3 mol adduct of bisphenol A, Examples thereof include polyhydroxy compounds such as glycerin and pentaerythritol or ester-forming derivatives thereof.
  • any PBT resin obtained by polycondensation using the above compound as a monomer component can be used as the component (a1) of the present invention, and can be used alone or in admixture of two or more.
  • a branched polymer belonging to a copolymer can also be used as the PBT resin.
  • the PBT resin branched polymer referred to here is a polyester having a so-called PBT resin or butylene terephthalate monomer as a main component and branched by adding a polyfunctional compound.
  • the polyfunctional compound that can be used here include trimesic acid, trimellitic acid, pyromellitic acid and alcohol esters thereof, glycerin, trimethylolethane, trimethylolpropane, and pentaerythritol.
  • PET resin polyethylene terephthalate resin
  • the PET resin is a thermoplastic resin obtained by polycondensation of terephthalic acid or its ester-forming derivative and ethylene glycol or its ester-forming derivative.
  • the PET resin may be a copolymer containing 90% by mass or more of ethylene terephthalate repeating units.
  • dibasic acid components and copolymers other than terephthalic acid or ester-forming derivatives thereof may be considered in the same manner as in the case of the PBT resin.
  • the PBT resin (a1) is essential.
  • the blending mass ratio is preferably 95/5 to 60/40 as (a1) / (a2).
  • the amount of halogenated flame retardant used can be reduced as the ratio increases.
  • the ratio of the PET resin (a2) is higher than 40/60 as (a2) / (a1), in the case of a thin molded product such as a relay case, the crystallinity of the resin composition is lowered and the moldability is reduced. It tends to decrease. For this reason, it may be necessary to increase the mold temperature or extend the mold holding time.
  • the combined use of the PBT resin (a1) and the PET resin (a2) may be mixed as separate raw materials, or both may be integrated as a copolymer.
  • the halogen-based flame retardant may be of various types including those conventionally known. Among these, it is preferable to use at least one selected from a halogenated epoxy resin, a halogenated aromatic bisimide compound, a halogenated benzyl acrylate, a halogenated polystyrene, and a halogenated phenyl eta.
  • Halogen in these cases is preferably chlorine or bromine.
  • preferable examples include TBBPA diglycidyl ether copolymer, polypentabromobenzyl acrylate, brominated polystyrene, pentabromophenyl ethane and the like.
  • the addition amount of the halogen-based flame retardant is 15 to 35 parts by mass, preferably 20 to 30 parts by mass with respect to 100 parts by mass of the (A) polybutylene terephthalate resin.
  • the addition amount of the halogen-based flame retardant is 15 parts by mass or more, sufficient flame retardancy can be obtained, and when it is 35 parts by mass or less, deterioration of mechanical properties can be suppressed.
  • antimony compounds such as antimony trioxide and antimony pentoxide, and melamine cyanurate, which are known to have a synergistic effect of flame retardancy when used in combination with (B) a halogen flame retardant, can be used.
  • silicates such as talc and mica, calcium carbonate, magnesium hydroxide, boehmite, zinc sulfate, zinc oxide and the like can be used.
  • the addition amount of the flame retardant aid is preferably 20 to 60 parts by mass with respect to 100 parts by mass of (A) polybutylene terephthalate resin.
  • the flame retardant aid is used in an addition amount of 20 parts by mass or more, the effect as a flame retardant aid is exhibited, and when it is used in an addition amount of 60 parts by mass or less, a decrease in mechanical strength can be suppressed.
  • the flame retardant aid is preferably antimony oxide or melamine cyanurate among those exemplified above.
  • antimony oxide and melamine cyanurate can have a great effect on flame retardancy. Combustibility is often accelerated by the combustible gas generated from the test piece when the red hot rod is pressed against the test piece, but the nitrogen gas generated from melamine cyanurate greatly contributes to suppression of combustibility. Conceivable. That is, by adding melamine cyanurate, sublimation and endotherm occur, and there is a great effect in suppressing combustion when a 750 ° C. red hot rod is pressed.
  • the content of melamine cyanurate is preferably 15 to 50 parts by mass with respect to 100 parts by mass of (A) polybutylene terephthalate resin.
  • the mass ratio of antimony oxide to melamine cyanurate is preferably 0.05 to 0.85, and more preferably 0.05 to 0.35.
  • the mineral filler is characterized by having a water content of 20% by mass or more and a dehydration start temperature of 300 ° C. or more.
  • (D) mineral filler a typical example is colemanite.
  • Colemanite is a mineral of hydrous calcium borate, and it is called a boehmite.
  • the average particle diameter of the mineral filler is not particularly limited, but is usually 100 ⁇ m or less, preferably 1 to 50 ⁇ m.
  • an average particle diameter can be measured using a laser diffraction scattering type particle size distribution measuring apparatus, for example.
  • the average particle diameter is a value derived by measurement using a sample arbitrarily extracted from the population and using the measurement apparatus.
  • the blending amount is in the range of 2 to 60 parts by weight, preferably 2 to 25 parts by weight, more preferably 5 to 25 parts by weight with respect to 100 parts by weight of the (A) polybutylene terephthalate resin.
  • the blending amount is in the range of 2 to 60 parts by weight, preferably 2 to 25 parts by weight, more preferably 5 to 25 parts by weight with respect to 100 parts by weight of the (A) polybutylene terephthalate resin.
  • 2 parts by mass or more In order to obtain a dehydration / endothermic effect, it is necessary to add 2 parts by mass or more.
  • the average fiber diameter of the glass fiber reinforcing agent is not particularly limited, and is, for example, 1 to 100 ⁇ m, preferably 1 to 50 ⁇ m, more preferably about 3 to 30 ⁇ m. Also, the average fiber length is not particularly limited and is, for example, about 0.1 to 20 mm.
  • the addition amount of the glass fiber reinforcing agent may be determined in accordance with the required level of rigidity and dimensional stability.
  • the amount is preferably 10 to 100 parts by mass, and more preferably 30 to 60 parts by mass with respect to 100 parts by mass of the (A) polybutylene terephthalate resin.
  • rigidity and dimensional stability can be improved.
  • addition amount 100 parts by mass or less it is possible to suppress a decrease in melt-kneading property and moldability.
  • the glass fiber reinforcing agent may be surface-treated with a sizing agent or a surface treatment agent (for example, a functional compound such as an epoxy compound, an isocyanate compound, a silane compound, or a titanate compound) as necessary.
  • a sizing agent or a surface treatment agent for example, a functional compound such as an epoxy compound, an isocyanate compound, a silane compound, or a titanate compound.
  • the glass fiber reinforcing agent may be surface-treated in advance with the sizing agent or surface treatment agent, or may be surface-treated by adding a sizing agent or surface treatment agent during the preparation of the resin composition. .
  • thermoplastic resin composition for insulating parts of the present invention when it is required that the flame retardant classification “V-0” of UL standard 94 is used depending on the use of the molded product, dripping prevention of fluorine-based resin, etc.
  • the agent is used with a flame retardant.
  • Fluorine-based resins include tetrafluoroethylene (PTFE), chlorotrifluoroethylene, vinylidene fluoride, hexafluoropropylene, perfluoroalkyl vinyl ether and other fluorine-containing monomers alone or copolymers, the fluorine-containing monomers and ethylene, Examples thereof include copolymers with copolymerizable monomers such as propylene and (meth) acrylate.
  • PTFE tetrafluoroethylene
  • chlorotrifluoroethylene vinylidene fluoride
  • hexafluoropropylene hexafluoropropylene
  • perfluoroalkyl vinyl ether perfluoroalkyl vinyl ether
  • other fluorine-containing monomers alone or copolymers
  • the fluorine-containing monomers and ethylene examples thereof include copolymers with copolymerizable monomers such as propylene and (meth) acrylate.
  • the amount of fluorine resin added is, for example, 0 to 10 parts by weight, preferably 0.1 to 5 parts by weight, more preferably 0.2 to 1 part by weight based on 100 parts by weight of the (A) polybutylene terephthalate resin. .5 parts by mass.
  • thermoplastic resin composition for insulating parts of the present invention if necessary, conventional additives such as antioxidants, ultraviolet absorbers, heat stabilizers, stabilizers such as weather stabilizers, lubricants, A mold release agent, a colorant, a nucleating agent, a crystallization accelerator and the like may be added. Further, other thermoplastic resins (for example, polyamide, acrylic resin, etc.) and thermosetting resins (for example, unsaturated PBT resin, phenol resin, epoxy resin, etc.) may be added.
  • thermoplastic resins for example, polyamide, acrylic resin, etc.
  • thermosetting resins for example, unsaturated PBT resin, phenol resin, epoxy resin, etc.
  • the test piece has a thickness of 0.3 mm, corresponds to UL94 V-0 in the flammability test, and the thickness of the test piece is 0.75 mm. It is preferable that GWIT can substantially satisfy the condition of 775 ° C. or higher at both 1.5 mm and 3.0 mm.
  • thermoplastic resin composition for insulating parts of the present invention any of thicknesses of 0.75 mm, 1.5 mm, and 3.0 mm In addition, combustion and ignition can be suppressed even if a hot rod is pressed against the test piece.
  • thermoplastic resin composition for insulating parts of the present invention may be a powder mixture or a molten mixture, and can be prepared by mixing by a conventional method.
  • each component can be mixed, kneaded by a single-screw or twin-screw extruder, and extruded to prepare a pellet.
  • the insulating component of the present invention can be obtained by performing known molding such as injection molding using the thermoplastic resin composition for insulating component prepared as described above.
  • the insulating parts include those used for automobile parts, electric / electronic parts, and the like, and the electric / electronic parts are also suitable for thin molded products such as switches and relay cases.
  • the mixture was kneaded and melted with a twin-screw extruder heated to 260 ° C., glass fibers were added at a predetermined ratio to the melted portion, and kneading and melting were further performed.
  • ⁇ Preparation of test piece> The molding material composed of the composition shown in Table 1 was pre-dried at 140 ° C. for 4 hours in a thermostatic bath, so that the moisture content in the molding material was 0.02% or less. Thereafter, a test piece was obtained by injection molding with a 100 t injection molding machine.
  • the conditions at that time are a cylinder temperature of 260 ° C. (near the head) and 200 ° C. (material input port), and the mold temperature varies depending on the TP.
  • Test pieces 1) 0.3 mm dumbbell test piece: A 0.8 mm molded product was molded at a mold temperature of 80 ° C. and polished. 2) 0.75 mm test piece: produced at a mold temperature of 80 ° C. 3) 1.5 mm test piece: produced at a mold temperature of 80 ° C. 4) 3.0 mm test piece: produced at a mold temperature of 80 ° C. 5) Tracking test piece: The above dumbbell was used.
  • ⁇ GWIT Conforms to IEC standards.
  • ⁇ Ignition during GWIT measurement The presence or absence of ignition was confirmed using a 0.3 mm dumbbell test piece.
  • the combined use of melamine cyanurate and antimony oxide as a flame retardant aid is effective.
  • the content of melamine cyanurate is 15 to 50 parts by mass with respect to 100 parts by mass of the polybutylene terephthalate resin, and the mass ratio of antimony oxide to melamine cyanurate is in the range of 0.05 to 0.85.
  • the test piece thickness of 0.75 mm, 1.5 mm, and 3.0 mm achieved the GWIT775 standard or higher.
  • the GWIT showed a clear improvement compared with the comparative example and obtained an excellent result.
  • the GWIT slightly decreased when the specimen thickness was 1.5 mm.

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  • Spectroscopy & Molecular Physics (AREA)
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Abstract

La présente invention a trait à : une composition de résine thermoplastique destinée à des composants isolants, qui est en mesure de fournir une caractéristique de résistance supérieure ou égale à la norme GWIT 775 °C dans quasiment toutes les épaisseurs d'éprouvette pour les composants isolants sans requérir le mélange d'un ingrédient spécial qui est un polymère cristallin liquide ou l'utilisation d'une fibre de verre à un rapport de mélange élevé, tout en étant dotée d'un bon équilibre entre la caractéristique de résistance, la résistance au cheminement et caractéristiques mécaniques ; et un composant isolant qui utilise la composition de résine thermoplastique destinée à des composants isolants. La composition de résine thermoplastique destinée à des composants isolants est caractérisée en ce qu'elle contient (A) une résine de poly téréphtalate de butylène, (B) un ignifuge d'halogène, (C) un auxiliaire d'ignifuge, (D) une charge minérale qui est dotée d'une teneur en humidité supérieure ou égale à 20 % en masse et d'une température d'initiation de déshydratation supérieure ou égale à 300 °C et (E) un agent renforçant à base de fibre de verre. La composition de résine thermoplastique destinée à des composants isolants est également caractérisée en ce que le composant (B) est présent à hauteur de 15 à 35 parties en masse pour 100 parties en masse du composant (A) et le composant (D) est présent à hauteur de 2 à 60 parties en masse pour 100 parties en masse du composant (A).
PCT/JP2012/053185 2011-10-24 2012-02-10 Composition de résine thermoplastique destinée à des composants isolants et composant isolant WO2013061622A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014069489A1 (fr) * 2012-10-29 2014-05-08 ウィンテックポリマー株式会社 Composition de résine de poly(téréphtalate de butylène)
WO2015037592A1 (fr) * 2013-09-10 2015-03-19 ウィンテックポリマー株式会社 Composition de résine de poly(téréphtalate de butylène) retardatrice de flamme
JP2021024876A (ja) * 2019-07-31 2021-02-22 ポリプラスチックス株式会社 電気絶縁部品用難燃性ポリブチレンテレフタレート樹脂組成物

Citations (3)

* Cited by examiner, † Cited by third party
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JP2008019400A (ja) * 2006-07-14 2008-01-31 Wintech Polymer Ltd 難燃性ポリブチレンテレフタレート樹脂組成物
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WO2014069489A1 (fr) * 2012-10-29 2014-05-08 ウィンテックポリマー株式会社 Composition de résine de poly(téréphtalate de butylène)
JPWO2014069489A1 (ja) * 2012-10-29 2016-09-08 ウィンテックポリマー株式会社 ポリブチレンテレフタレート樹脂組成物
WO2015037592A1 (fr) * 2013-09-10 2015-03-19 ウィンテックポリマー株式会社 Composition de résine de poly(téréphtalate de butylène) retardatrice de flamme
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JP2021024876A (ja) * 2019-07-31 2021-02-22 ポリプラスチックス株式会社 電気絶縁部品用難燃性ポリブチレンテレフタレート樹脂組成物
JP7454342B2 (ja) 2019-07-31 2024-03-22 ポリプラスチックス株式会社 電気絶縁部品用難燃性ポリブチレンテレフタレート樹脂組成物

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