摘要:
The invention provides a method for producing a polytetrafluoroethylene composition including mixing a polytetrafluoroethylene resin and a filler using an airflow mixer to provide a polytetrafluoroethylene composition containing the polytetrafluoroethylene resin and the filler. The invention also provides a polytetrafluoroethylene composition produced by the production method, a polytetrafluoroethylene composition having specific physical properties, as well as a molded article, electrically conductive tube, thermally conductive film, and substrate for CCL each obtainable with the polytetrafluoroethylene composition.
摘要:
An object of the present invention is to provide a fluorine-containing elastomer composition being flexible and having excellent fuel barrier property, heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a sealing material, a molded article and a fuel hose obtained by crosslinking the fluorine-containing elastomer composition. The composition is a fluorine-containing elastomer composition comprising a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a hydrotalcite, wherein an acid acceptor comprising only an oxide or hydroxide of a divalent metal is contained in an amount of not more than 2 parts by weight based on 100 parts by weight of the fluorine-containing elastomer.
摘要:
Provided is a method for producing a solid-state secondary battery electrode, using PTFE, capable of reducing resistance of the electrode and achieving strength of a positive electrode mixture sheet, and a binder. A method for producing a solid-state secondary battery sheet, including (1) preparing a composition for producing a secondary battery sheet substantially free of a liquid medium by using a binder that is a powder which comprises a polytetrafluoroethylene resin and a conductive aid homogeneously mixed and which is free of an active material.
摘要:
Provided is a method for producing a secondary battery electrode, using PTFE, capable of reducing electrical resistance thereof and achieving excellent strength at the same time, and a binder. A method for producing a secondary battery electrode using a non-aqueous electrolyte, including (1) preparing a composition for producing an electrode substantially free of a liquid medium by using a binder that is a powder which is composed of a composition essentially including a polytetrafluoroethylene resin and a conductive aid and which is free of an active material.
摘要:
Provided is a dielectric waveguide capable of reducing electromagnetic wave penetration. The disclosure relates to a dielectric waveguide comprising: a center dielectric A1; a dielectric layer A2 surrounding the center dielectric A1; and a dielectric layer A3 surrounding the dielectric layer A2, the center dielectric A1 comprising polytetrafluoroethylene, the center dielectric A1, the dielectric layer A2, and the dielectric layer A3 having relative permittivities at 25°C and 6 GHz represented by ε A1 , ε A2 , and ε A3 , respectively, ε A1 , ε A2 , and ε A3 satisfying the following: ε A1 is 2.20 or lower; ε A2 is 1.90 or lower; ε A3 is 1.55 or lower; and ε A1 > ε A2 > ε A3 is satisfied.
摘要:
The present invention provides a thermoplastic resin composition comprising a fluororesin (A) and a crosslinked fluoroelastomer (B), wherein the fluororesin (A) is a copolymer that contains a chlorotrifluoroethylene unit and a tetrafluoroethylene unit and that has at least one functional group selected from the group consisting of a carbonyl group, an olefinic group and an amino group at a main chain terminal or side chain terminal of the polymer; wherein the crosslinked fluoroelastomer (B) is obtained by subjecting a fluoroelastomer (b) to a dynamic crosslinking treatment along with a polyamine compound (c) having a thermal decomposition temperature of 210°C or higher and a crosslinking accelerator (d) in the presence of the fluororesin (A) under conditions for melting the fluororesin (A); and wherein a mass ratio between the fluororesin (A) and the fluoroelastomer (b) (fluororesin (A)/fluoroelastomer (b)) is less than 70/30 and 20/80 or more.
摘要:
The present invention provides a thermoplastic resin composition comprising a fluororesin (A) and a crosslinked fluoroelastomer (B), wherein the fluororesin (A) is a copolymer that contains a chlorotrifluoroethylene unit and a tetrafluoroethylene unit and that has at least one functional group selected from the group consisting of a carbonyl group, an olefinic group and an amino group at a main chain terminal or side chain terminal of the polymer, and wherein the crosslinked fluoroelastomer (B) is obtained by subjecting a fluoroelastomer (b) to a dynamic crosslinking treatment along with a polyamine compound (c) having a thermal decomposition temperature of 210°C or higher and a crosslinking accelerator (d) in the presence of the fluororesin (A) under conditions for melting the fluororesin (A).
摘要:
A fluoroelastomer composition which is flexible, has fuel-barrier properties, and is excellent in properties including heat resistance, chemical resistance, and oil resistance. Also provided are a sealing material, molded article, and fuel hose which are obtained by crosslinking the fluoroelastomer composition. The fluoroelastomer composition comprises a polyol-crosslinkable fluoroelastomer, a polyol type crosslinking agent, and a hydrotalcite, wherein an acid acceptor consisting only of one or more divalent-metal oxides or hydroxides is contained in an amount of 2 parts by weight or smaller per 100 parts by weight of the fluoroelastomer.