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摘要
在100W功率条件下,用氧等离子体对国产T800级碳纤维进行处理,通过扫描电子显微镜,原子力显微镜,X射线光电子能谱、单丝拉伸强度测试等方法对处理前后碳纤维表面物理化学特性进行表征,采用微脱粘方式研究了等离子体处理前后碳纤维环氧树脂复合材料界面的结合性能。结果表明:等离子体处理使碳纤维表面发生明显刻蚀,显著地提高了其表面化学活性;处理时间为3min时,碳纤维力学性能未发生降低,而其复合材料界面剪切强度值(IFSS)可达最高的88.61MPa,相比于未处理碳纤维复合材料而言,IFSS增幅为97.39%。
Abstract
The surface of domestic T800 grade carbon fibers were treated by oxygen plasma under 100W powercondition.The physical and chemical properties of carbon fibers before and after treatment were characterized byscanning electron microscope(SEM) , atomic force microscope(AFM) , X-ray photoelectron spectroscopy (XPS), singlefiber tensile strength test.etc.The bonding properties of carbon fiber epoxy resin composite interface before and afterplasma treatment were studied by the Micro-droplet debonding test.The results showed that the surface of domesticcarbon fibers was obviously etched by plasma treatment, and the surface chemical activity was significantly improved.The mechanical properties of carbon fiber were not reduced when treated for 3min, however the interfacial shearstrength(IFSs) of composite reached to the highest value of 88.61MPa.Compared with untreated carbon fibercomposites , the IFSS increased by 97.39%.
关键词
碳纤维
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等离子体处理
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复合材料
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界面性能
Key words
carbon fiber
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plasma treatment
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composite
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interfacial property
等离子体处理对国产高强碳纤维复合材料界面性能影响研究[J].
化工新型材料, 2023, 51(8): 114-118 DOI:10.19817/j.cnki.issn1006-3536.2023.08.022
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