EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIALS, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL
申请人:TORAY INDUSTRIES, INC.
公开号:US20140309337A1
公开(公告)日:2014-10-16
Provided are: a fiber-reinforced composite material which is suppressed in morphology variation due to the molding conditions, while having excellent mode I interlaminar fracture toughness and excellent wet heat resistance; an epoxy resin composition for obtaining the fiber-reinforced composite material; and a prepreg which is obtained using the epoxy resin composition. An epoxy resin composition for fiber-reinforced composite materials, which contains at least the following constituent elements [A]-[F], and which is characterized by containing 5-25 parts by mass of constituent element [C] and 2-15 parts by mass of constituent element [E] per 100 parts by mass of the total epoxy resin blended therein. [A] A bifunctional amine type epoxy resin. [B] A tetrafunctional amine type epoxy resin. [C] A bisphenol F type epoxy resin having an epoxy equivalent weight of 450-4,500. [D] An aromatic amine curing agent. [E] A block copolymer having a reactive group that can be reacted with as epoxy resin. [F] Thermoplastic resin particles that are insoluble in an epoxy resin.
提供了一种纤维增强复合材料,其在成型条件下具有抑制形态变化的特性,同时具有优异的I型层间断裂韧性和出色的耐湿热性能;一种用于制备纤维增强复合材料的环氧树脂组合物;以及使用该环氧树脂组合物制备的预浸料。一种用于纤维增强复合材料的环氧树脂组合物,其中至少包含以下组分[A]-[F],并且其特征是每100份环氧树脂中含有5-25份组分[C]和2-15份组分[E]。[A] 双官能基胺型环氧树脂。[B] 四官能基胺型环氧树脂。[C] 具有450-4,500环氧当量重的双酚F型环氧树脂。[D] 芳香胺固化剂。[E] 具有可与环氧树脂反应的反应性基团的嵌段共聚物。[F] 在环氧树脂中不溶的热塑性树脂颗粒。