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1.发明专利
公开(公告)号：AU2020387250A1
公开(公告)日：2022-06-02
申请号：AU2020387250
申请日：2020-11-16
Applicant: TORAY INDUSTRIES INC
Inventor： MATSUKAWA KO , HIRANO MASANORI , NAGANO MAKI , TOMIOKA NOBUYUKI
Abstract: The present invention addresses the problem of providing: an epoxy resin composition for fiber-reinforced composite materials which retains a low viscosity during injection into reinforcing fibers to show excellent infiltrating properties and which comes to have both high toughness and high heat resistance; and a fiber-reinforced composite material obtained using the epoxy resin composition. The present invention is characterized by a method for forming a fiber-reinforced composite material which comprises reinforcing fibers [A] and a cured object obtained from an epoxy resin composition [B], wherein the epoxy resin composition [B] comprises the following constituent elements [a], [b], and [c] and is cured so that the absorbance ratio Da/(Da+Db) comes to be in the range of 0.4-1, thereby obtaining the fiber-reinforced composite material. [a]: An epoxy resin having at least two oxirane groups in the molecule [b]: An epoxy resin hardener having at least two isocyanate groups in the molecule [c]: A catalyst
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2.发明专利
公开(公告)号：AU2023233366A1
公开(公告)日：2024-09-26
申请号：AU2023233366
申请日：2023-03-16
Applicant: TORAY INDUSTRIES INC
Inventor： MATSUKAWA KO , KONISHI DAISUKE , HIRANO NORIYUKI , TSUCHIDA HIROYA
Abstract: The present invention addresses the problem of providing: an epoxy resin composition having excellent viscosity stability and attaining high compression characteristics under wet heat conditions and high fracture toughness; and a fiber-reinforced composite material including, as a matrix resin, a cured resin formed by curing the epoxy resin composition. The epoxy resin composition includes the following components [A] and [B] and satisfies the following requirements 1 and 2. Component [A]: A tetrafunctional glycidyl amine type epoxy resin Component [B]: Dimethylthiotoluenediamine Requirement 1: To contain the component [A] in an amount of 20-80 parts by mass per 100 parts by mass of all epoxy resins Requirement 2: To have a value (E
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公开(公告)号：AU2021217266A1
公开(公告)日：2022-08-18
申请号：AU2021217266
申请日：2021-01-27
Applicant: TORAY INDUSTRIES
Inventor： MATSUKAWA KO , KOYANAGI SHIZUE , HIRANO MASANORI , TOMIOKA NOBUYUKI
Abstract: The purpose of the present invention is to provide: a molding material from which a carbon fiber reinforced composite material having excellent impact resistance and tensile strength is obtained; and a molding material from which a glass fiber reinforced composite material, that has high bending strength and impact resistance, has excellent weather resistance, and can suppress a decrease in bending strength after water absorption, is obtained. In order to achieve the purpose, the molding material according to the present invention is a molding material formed of an epoxy resin composition and a carbon fiber and/or a glass fiber, wherein the epoxy resin composition includes all of [A] to [C], the carbon fiber satisfies conditions [a] and [b], and the glass fiber has a surface functional group capable of forming a covalent bond with an isocyanate group. [A] Epoxy resin having at least two oxylan groups in molecule [B] Epoxy resin curing agent having at least two isocyanate groups in molecule [C] Catalyst [a] Having substantially perfect circular cross section [b] Average fiber diameter of 4.0-8.0 μm
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