Title:
EPOXY RESIN COMPOSITION, PREPREG, AND CARBON FIBER REINFORCED COMPOSITE MATERIAL
Document Type and Number:
Japanese Patent JP2019065111
Kind Code:
A
Abstract:
To provide an epoxy resin composition providing a carbon fiber reinforced composite material excellent in honeycomb moldability by viscosity control, process adaptability, tackiness, and further excellent in compression resistance under high temperature environment after moisture absorption.SOLUTION: There is provided an epoxy resin composition containing at least following constitutional elements [A] to [E], with 10 to 40 pts.mass of constitutional element [A] and 10 to 30 pts.mass of constitutional element [B] based on 100 pts.mass of total amount of an epoxy resin in the epoxy resin composition, and further having 70°C viscosity measured at strain rate of 3.14 rad/s of 250 Pa s or less, 140°C viscosity measured at strain rate of 0.05 rad/s of 2.0 Pa s or more, and 30°C storage elastic modulus measured at strain rate of 3.14 rad/s of 60 kPa or less. [A]: an epoxy resin having 2 or more naphthalene skeleton and 2 epoxy group. [B]: an epoxy resin having one naphthalene skeleton and 2 epoxy groups. [C]: a glycidylamine type epoxy resin having 3 or more epoxy groups. [D]: polyether sulfone. [E]: an aromatic amine-based curing agent.SELECTED DRAWING: None
Inventors:
TAMARU KYOKO
AOKI JUNICHI
SAKATA HIROAKI
OCHI TAKASHI
AOKI JUNICHI
SAKATA HIROAKI
OCHI TAKASHI
Application Number:
JP2017189901A
Publication Date:
April 25, 2019
Filing Date:
September 29, 2017
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
C08G59/24; C08J5/24; C08L63/00; C08L81/06