INFLUENCE OF GASEOUS SURFACE TREATMENT UPON CARBON FIBERS AND ITS COMPOSITES
气相处理对碳纤维表面及其复合材料性能的影响

This paper has systematiclly studied the new technology of gaseous surfacetreatment of carbon fibers.After treatment,the tensile strength and tensile modulus do not de-crease,but its surface free energy and functional groups increase obviously and surfacecrystallites get smaller and the LLSS of composites increase by 47%.The morphology offractural section is studied by SEM and the results indicate that the new technology of surfacetreatment is effective in strengthening the adhesion of fibers and matrix.