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    • 5. 发明申请
    • METHOD FOR PRODUCING ANISOTROPIC CARBON FIBRES
    • 生产各向异性碳纤维的方法
    • WO1986002952A2
    • 1986-05-22
    • PCT/EP1985000619
    • 1985-11-13
    • BERGWERKSVERBAND GMBHHEIN, MichaelROMEY, Ingo
    • BERGWERKSVERBAND GMBH
    • D01F09/14
    • C09D13/00D01F9/15
    • The method for producing anisotropic carbon fibres from carbon-containing isotropic pitch comprises the following steps: a) an isotropic pitch of a size smaller than 0.1mm is released from unmeltable components at a temperature comprised between 150oC and 350oC, b) the pitch purified with a mononuclear organic solvent amount equal to 4-6 parts by weight of solvent for one part by weight of pitch filtrate is extracted at a temperature comprised between 70 and 90oC, c) the extraction residue is dried before its transformation into mesophase pitch, it is heat-treated during a period from 1 to 5 hours at a temperature comprised between 340oC and 410oC, and the mesophase pitch obtained is woven into fibres, d) the extraction residue is mixed before its heat treatment with 1-15% by weight of purified solvent extract by suction into a water jet. A mixture is obtained wherein the toluene soluble part is 20-40% by weight of the mixture.
    • 在含碳是)各向同性沥青的碳纤维生产工艺各向异性部分释放小于0.1mm的细度可输注部件的各向同性沥青在150℃和350℃,B之间的温度 )提取与等于4-6份到1份重量的沥滤液的量有机溶剂的单核的重量,溶剂的精制沥青在处理前70和90℃,c)中干燥浸出残渣之间的温度下 成中间相沥青在热和340o之间410oC的温度为1〜5小时进行处理,并获得沥青纤维纺丝的中间相,d)混合1-15%的在热处理前浸出残渣 重量的溶剂提取物通过吸水在水柱中纯化。 得到混合物,其中甲苯可溶部分占混合物重量的20-40%。