Abstract
分别用溶剂法和熔融法成功制备了有机粘土/聚醚砜/环氧树脂杂化纳米复合材料,对其拉伸性能、断裂韧性、热性能和微观结构进行了研究。结果表明:两种杂化纳米复合材料的拉伸强度可达75 MPa以上,模量可达3.0 GPa以上,断裂韧性可达1.1 MPam1/2以上。观察到了聚醚砜和有机粘土对环氧树脂的协同增韧现象。聚醚砜/环氧树脂基体具有半互穿网络结构,有机粘土片层呈有序剥离形态。用溶剂法制备的杂化纳米复合材料样本的玻璃化转变温度(Tg)在170℃以上,用熔融法制备的样本的Tg在180℃以上。
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