In order to realize the objectives stated above, the thermosetting resin composition for carbon fiber 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)
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Furthermore, the present invention also relates to a prepreg formed by impregnating reinforcing fiber with the aforesaid resin composition and to carbon fiber reinforced composite materials comprising reinforcing fiber 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 fiber 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 fiber 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组分。
(A) 热固性
树脂
(B) 含有一个可与热固性
树脂(A)或其固化剂反应的官能团的化合物,以及一个选 自下式(1)至(4)的分子
1
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很好,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很好的碳纤维增强复合材料,这种复合材料还具有出色的抗冲击性。