The Effect of Pre-carbonization Condition on the Mechanical Properties of Nonwoven Carbon/Phenolic Composites

전 열처리 조건이 탄소/페놀 부직포 복합재료의 역학적 성질에 미치는 영향

The effect of pre-carbonization condition on the mechanical properties of nonwoven needle-punched carbon/phenolic composite was studied. The nonwoven Oxi-PAN felt was pre-carbonized at different temperature. The pre-carbonized Oxi-PAN felt was needle-punched and then carbonized. Needle-punched nonwoven carbon preforms were formed into composites with phenol resin. The tensile and flexural strengths showed maximum value with pre-carbonization temperature of $500^{\circ}C$. Compared with the non-pre-carbonized composite, the mechanical properties were slightly improved.