Abstract:
A method of producing a glass fiber-reinforced recycled PPS resin composition, includes: crushing a molded product containing a polyphenylene sulfide resin and glass fibers to obtain a crushed molded product (A), and mixing the crushed molded product (A) and a PPS resin composition (B) containing 40 to 90 wt % of the PPS resin having a weight average molecular weight of 20,000 to 60,000 and 10 to 60 wt % of glass fibers. The glass fiber-reinforced recycled PPS resin composition suppresses breakage of glass fibers at the time of recycling the glass fiber-reinforced PPS resin composition, and has excellent mechanical properties.
Abstract:
A polyphenylene sulfide resin composition is obtained by mixing a polyphenylene sulfide resin (a), a fluororesin (b) and an organosilane compound (c). When a resin phase-separated structure of a molded product formed from the polyphenylene sulfide resin composition is observed by an electron microscope, the component (a) forms a continuous phase, the component (b) forms a primary dispersed phase having a number-average dispersion diameter of not greater than 1 μm, and a secondary dispersed phase of the component (a) is included in the primary dispersed phase of the component (b).
Abstract:
A polyphenylene sulfide resin composition exhibits excellent initial toughness and toughness after a long-term high temperature treatment typified by a tensile elongation at break after a dry heat treatment without impairing mechanical strength, chemical resistance and electrical insulation properties. The polyphenylene sulfide resin composition includes 0.01 to 10 parts by weight of an organosilane compound and 0.01 to 5 parts by weight of a metal salt of phosphorus oxoacid based on 100 parts by weight of a polyphenylene sulfide resin, and a tensile elongation at break, which is measured in accordance with ASTM-D638 under the conditions of a tensile speed of 10 mm/min and an ambient temperature of 23° C. after treating at 200° C. for 500 hours using an ASTM No. 4 dumbbell test piece obtained by injection molding the composition, is 10% or more.
Abstract:
A polyphenylene sulfide resin composition includes a polyphenylene sulfide resin (A), an amino group-containing compound (B), an epoxy group-containing elastomer (C), wherein the polyphenylene sulfide resin (A) forms a continuous phase and the amino group-containing compound (B) and the epoxy group-containing elastomer (C) form a dispersed phase in the morphology of a forming product composed of the resin composition observed with a transmission electron microscope, and the modulus of elongation (the elastic modulus determined by performing a tensile test on an ASTM type 1 dumbbell test piece obtained by injection molding at a cylinder temperature of 300° C. and at a mold temperature of 150° C., under the conditions in which the distance between chucks is 114 mm, the test piece distance is 100 mm, and the elongation rate is 10 mm/min) of the resin composition is 1.0 MPa or more and 1000 MPa or less.
Abstract:
A polyphenylene sulfide resin composition includes (a) a polyphenylene sulfide resin and (b) a silicone-based polymer; the content of the component (b) is not less than 3 parts by weight and not more than 40 parts by weight with respect to 100 parts by weight of the component (a); in terms of morphology (phase structure), the polyphenylene sulfide resin composition has a phase-separated structure wherein the component (a) forms a continuous phase and the component (b) forms a dispersed phase in which the component (b) is dispersed with a number average dispersion diameter of not more than 3.0 μm; a test specimen obtained by injection molding of the polyphenylene sulfide resin composition at a cylinder temperature of 310° C. and a mold temperature of 145° C. has a flexural modulus of not more than 3.0 GPa as determined by a flexural test according to ISO 178.
Abstract:
A polyphenylene sulfide resin composition includes a polyphenylene sulfide resin (A), an amino group-containing compound (B), an epoxy group-containing elastomer (C), wherein the polyphenylene sulfide resin (A) forms a continuous phase and the amino group-containing compound (B) and the epoxy group-containing elastomer (C) form a dispersed phase in the morphology of a forming product composed of the resin composition observed with a transmission electron microscope, and the modulus of elongation (the elastic modulus determined by performing a tensile test on an ASTM type 1 dumbbell test piece obtained by injection molding at a cylinder temperature of 300° C. and at a mold temperature of 150° C., under the conditions in which the distance between chucks is 114 mm, the test piece distance is 100 mm, and the elongation rate is 10 mm/min) of the resin composition is 1.0 MPa or more and 1000 MPa or less.
Abstract:
A polyphenylene sulfide block copolymer contains polyphenylene sulfide units and poly-organosiloxane units and has a glass-transition temperature in the range of 80° C. or lower and a weight-average molecular weight in the range of 35,000 to 100,000. The polyphenylene sulfide block copolymer has high flexibility as well as high heat resistance and heat aging resistance.
Abstract:
The invention provides a PPS resin composition having excellent heat resistance and excellent electrical properties without damaging excellent physical properties including mechanical properties and low gas generation which PPS intrinsically has. There is provided a resin composition comprising (a) a polyphenylene sulfide resin and (b) one or more copolymers selected among a tetrafluoroethylene/hexafluoropropylene copolymer, an ethylene/tetrafluoroethylene copolymer and a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer. In the resin composition, (a) the polyphenylene sulfide resin forms a continuous phase, (b) one copolymer selected among the above components forms primary dispersed phases, and the primary dispersed phase includes secondary dispersed phases formed by a component different from the component of the primary dispersed phase.
Abstract:
A polyphenylene sulfide resin composition is obtained by mixing a polyphenylene sulfide resin (a), a fluororesin (b) and an organosilane compound (c). When a resin phase-separated structure of a molded product formed from the polyphenylene sulfide resin composition is observed by an electron microscope, the component (a) forms a continuous phase, the component (b) forms a primary dispersed phase having a number-average dispersion diameter of not greater than 1 μm, and a secondary dispersed phase of the component (a) is included in the primary dispersed phase of the component (b).
Abstract:
A polyphenylene sulfide block copolymer contains polyphenylene sulfide units and polyorganosiloxane units and has a glass-transition temperature in the range of 80° C. or lower and a weight-average molecular weight in the range of 35,000 to 100,000. The polyphenylene sulfide block copolymer has high flexibility as well as high heat resistance and heat aging resistance.