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    • 7. 发明公开
    • Process for producing pitch-based carbon fibers having superior compression characteristics
    • 一种用于具有改进的压实值产生基于碳的沥青过程。
    • EP0514190A1
    • 1992-11-19
    • EP92304401.0
    • 1992-05-15
    • NIPPON OIL COMPANY, LIMITED
    • Takashima, HiroakiKihara, TsutomuKato, Osamu
    • C10C1/00C10C3/02D01F9/24
    • D01F9/24C10C1/00C10C3/026
    • Pitch-based carbon fibers having superior compression characteristics are obtained by mixing a polycyclic aromatic compound and a hydrogen donating compound e.g. tetrahydropaphtelene, dihydroanthracene, dihydrophenanthene or tetrahydropyrene at a mole ratio of the latter to the former of from 0.1 to 10, polymerzing the resulting mixture at a temperature of 50° to 400°C in the presence of a Lewis acid as catalyst, then removing the catalyst, thereafter heat-treating the resulting polymer to obtain a pitch containing 5-40 weight % of anisotropic spheres of 5-60 µm, having a total amount of aliphatic hydrogen of 25-50% as meassured by ¹H-NMR and an amount of aliphatic hydrogen after β (i.e. at the γ position and beyond) of 5-25% and containing not more tha 30% of oriented carbon based on a total amount of aromatic carbon as measured by high-temperature melting ¹³C-NMR, then spinning said pitch, then making the resulting pitch fiber infusible and subjecting the pitch fiber thus rendered infusible to a carbonization treatment.
    • 具有优异的压缩特性的沥青系碳纤维由多环芳族化合物和例如供氢化合物混合而获得 在后者与前者为0.1〜10的摩尔比,在50℃的在路易斯酸作为催化剂的存在下的温度至400℃polymerzing所得混合物tetrahydropaphtelene,dihydroanthracenes,dihydrophenanthene或四氢芘,然后除去 催化剂,然后加热处理所得到的聚合物,得到含沥青5-60微米的各向异性球体的5-40重量%的具有脂族氢的25-50%的总量由<1> H-NMR如meassured 和5-25%的β-(即,在γ位及以后)后氢的脂肪族的量和包含基于芳族羧酸的总量取向性的碳不多THA 30%,如通过高温熔融测量<1> <3> C-NMR,然后纺纱所述变桨,然后将所得沥青纤维不熔和将如此变得不熔的碳化处理的沥青纤维。