为了提高沥青基炭纤维表面活性,采用γ-射线辐照对沥青基炭纤维表面改性.用AFM、XPS研究了γ-射线辐照改性后沥青基炭纤维表面结构的变化,用浸润仪测定了改性前后沥青基炭纤维表面能的变化.研究了γ-射线辐照沥青基炭纤维对炭/炭复合材料力学性能的影响,并用SEM分析了炭/炭复合材料断口形貌.结果表明,γ-射线辐照使炭纤维表面含氧官能团和表面粗糙度增加,提高了沥青基炭纤维的表面能;降低了炭/炭复合材料孔隙率,提高了炭/炭复合材料力学性能.
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