碳纤维增强尼龙6复合材料的制备与研究
首发时间:2009-10-20
摘要:通过双螺杆挤出机对碳纤维和尼龙6进行复合制备,研究了复合材料的界面结构和力学性能,通过碳纤维的扫描电镜照片发现,硝酸处理的碳纤维较未处理碳纤维表面有更高的表面粗糙度。复合材料断面照片显示处理后的碳纤维和基体尼龙6材料有着很好的界面结合。复合材料的力学性能得到提高,其拉伸强度和拉伸模量分别提高了33%和55%。DSC测试显示碳纤维在复合材料中起到了异相成核作用。
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study on preparation of Carbon Fiber Reinforced Nylon6 Composite
Abstract:Carbon fiber-reinforced composites were prepared successfully by twin-screw extruder. Microstructure and mechanical properties of CFRP were studied. Scanning electron microscope photograph of carbon fiber treated by nitric acid indicated more legible grooves than that of untreated one. It shows good matrix-carbon fiber adhesion between the treated CF with fracture surface morphology and PA6. the mechanical property of composite is enhanced compared with pure PA6. Especially, tensile strength and Tensile modulus are enhanced by 33% and by 50% respectively. DSC curves of sample illustrate CF plays a part of heterogeneous nucleation in composite。
Keywords: carbon fiber nitric acid oxidation interfacial adsion twin-screw extruder
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No.3595649699912560****
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