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題名 | The Influence of the Shrinkage behavior during Cintinuous Stabilization on Physical Properties and Microstructure of Carbon Fibers=連續式氧化工程中超喂方式對PAN系碳纖維物性之影響 |
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作者 | 柯澤豪; | 書刊名 | 逢甲學報 |
卷期 | 25 1992.11[民81.11] |
頁次 | 頁413-429 |
分類號 | 467.68 |
關鍵詞 | 工程; 物性; 氧化; 連續式; 超喂; 碳纖維; |
語文 | 英文(English) |
中文摘要 | 本研究是以PAN纖維為原料,利用連續式的方式來製造碳纖維。在氧化工程中對纖維 施以超喂方式,探討PAN纖維在熱處理過程中,對所製成的氧化纖維及碳纖維物性及微細構造 方面的影響。在氧化工程中,施以較高的超喂將增加氧含量,並減少梯狀結構物的形成;在 光學顯微鏡下觀察氧化纖維的橫截面時發現,較高的超喂率將使得纖維核心未受氧攻擊的部 份增加。不同超喂方式所製的氧化纖維接著在連續式過程中碳化至1300℃,較高的超喂方式 將降低所製成碳纖維的密度及順向度,但將提高氧及氧的含有率,並增加碳纖納內部之多孔 性。 |
英文摘要 | During continuous stabilization and carbonization, the shrinkage behavior of PAN fibers affects the mechanial properties of the stabilized fibers and the final carbon fibers. In the stabilized fibers, a higher shrinkage of the PAN fibers during the stabilization process increased the oxygen content and the core proportion and decreased the formation of ladder polymers. The carbon fibers developed from shrunk stabilized fibers have a lower density and lower preferred orientation than fibers developed from unshrunk stabilized fibers. But the fibers developed in this new process have greater nitrogen and oxygen content, and have a greater porosity than the traditionally-produced fibers. The mechanical properties of the new and the traditional fibers are comparable. |
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