EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL
申请人:TORAY INDUSTRIES, INC.
公开号:EP0947562A1
公开(公告)日:1999-10-06
In order to realise the objectives stated above, the thermosetting resin composition for carbon fibre reinforced composite materials of the present invention chiefly comprises the following components.
(A) Thermosetting resin
(B) Compound containing one functional group which can react with thermosetting resin (A) or its curing agent, and a moiety selected from the following formulae (1) to (4)
Furthermore, the present invention also relates to a prepreg formed by impregnating reinforcing fibre with the aforesaid resin composition and to carbon fibre reinforced composite materials comprising reinforcing fibre and a cured aforesaid thermosetting resin composition.
In accordance with the present invention, there can be obtained a thermosetting resin composition where the adhesion to reinforcing fibre by the cured material and the elastic modulus of the cured material are excellent, and by using this resin composition there can be obtained carbon fibre reinforced composite materials which are excellent in their 0° compressive strength, 90° tensile strength and interlaminar shear strength, and which also have outstanding impact resistance.
为了实现上述目标,本发明用于碳纤维增强复合材料的热固性树脂组合物主要包括以下成分。
(A) 热固性树脂
(B) 含有一个可与热固性树脂(A)或其固化剂发生反应的官能团和一个选自下式 (1)至(4)的分子的化合物
此外,本发明还涉及用上述树脂组合物浸渍增强纤维而形成的预浸料,以及由增强纤维和固化的上述热固性树脂组合物组成的碳纤维增强复合材料。
根据本发明,可以获得一种热固性树脂组合物,在这种组合物中,固化材料与增强纤维的粘附性和固化材料的弹性模量都非常好,使用这种树脂组合物可以获得 0°抗压强度、90°抗拉强度和层间剪切强度都非常好的碳纤维增强复合材料,这种材料还具有出色的抗冲击性。