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本文评价了一种可用于纤维缠绕先进复合材料的,以聚醚三胺进行固化的双酚F 环氧树脂。该树脂系统具有低粘度,长使用期,并能在中温下进行固化。使用这种树脂制造的复合材料,未发现明显的纤维微皱摺或分层现象,这意味着介于纤维和基体之间不同的热膨胀系数已不成为一个问题。该树脂系统浇注体典型力学性能(拉伸、压缩和剪切)已测得。拉伸:最大应力75.8兆帕(Mpa),最大应力下的应变为4.2%,模量为3171兆帕,断裂应力为71兆帕,断裂应变为5.8%。压缩:最大应力为87兆帕,最大应力下的应变为4.7%,模量为3150兆帕。剪切:断裂应力为52.2兆帕,冲击强度为32.6牛顿米/米。
In this paper, a bisphenol F epoxy resin cured with polyether triamine was evaluated for advanced composite materials for filament winding. The resin system has low viscosity, long life, and can be cured at a moderate temperature. No significant micro-wrinkles or delamination was observed in composites made using this resin, which means that a different coefficient of thermal expansion between the fibers and the matrix has not become a problem. The resin system castings typical mechanical properties (tensile, compressive and shear) have been measured. Tensile: The maximum stress is 75.8 MPa, the strain at maximum stress is 4.2%, the modulus is 3171 MPa, the fracture stress is 71 MPa and the fracture strain is 5.8%. Compression: The maximum stress is 87 MPa, the strain at maximum stress is 4.7% and the modulus is 3150 MPa. Shear: The breaking stress is 52.2 MPa and the impact strength is 32.6 Nm / m.