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    • 5. 发明专利
    • Novel continuous inorganic fiber and its preparation
    • 新型连续无机纤维及其制备
    • JPS5756522A
    • 1982-04-05
    • JP13146880
    • 1980-09-24
    • Seishi Yajima
    • YAJIMA SEISHI
    • C01B31/30C04B35/571C08G77/32C08G77/58D01F9/10
    • D01F9/10C01B32/907C01P2002/02C01P2002/72C01P2004/10C01P2004/50C01P2006/80C01P2006/90C04B35/571C08G77/32C08G77/58Y02P20/582
    • PURPOSE: To obtain the titled fiber having improved mechanical and thermal properties, rich in flexibility and good property of wetting a metal or alloy, by spinning a specific modified polycarbosilane having Si-CH
      2 and V-O in the main chain skeleton, making the resultant fibers infusible, and calcining the resultant infusible fibers.
      CONSTITUTION: A modified polycarbosialne having the main chain skeleton constituted of Si-CH
      2 bonds and V-O bonds and partially V-O-Si bonds (30W60wt% Si, 20W60wt% C, 0.5W5wt% O, 5W10wt% H and 0.01W15wt% V) is spun into fibers, which are made infusible and then calcined in a vacuum or an inert gaseous atmosphere at 800W1,800°C. The X-ray diffraction pattern obtained from the resultant continuous fibers by calcining at 1,350°C in Ar for 2hr provides the identification of V
      2 C in a sample containing 8wt% V; however, in the case of 0.05wt% V, the sample consists of apparatus of apparant two phases of β-SiC and graphite. The mechanical and thermal properties of the fibers are tentatively satisfactory.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:通过在主链骨架中纺丝具有Si-CH2和VO的特定改性聚碳硅烷,获得具有改善的机械和热性能的标准纤维,具有丰富的柔韧性和润湿金属或合金的良好性能,使得所得纤维不可渗透 ,并煅烧所得到的不可熔纤维。 构成:具有由Si-CH2键和VO键和部分VO-Si键构成的主链骨架的改性聚碳烷(30-60重量%Si,20-60重量%C,0.5-5重量%O,5-10重量%H和 0.01-15wt%V)纺丝成纤维,将其制成不熔,然后在真空或惰性气氛中在800-1800℃下煅烧。 通过在Ar中在1,350℃煅烧2小时从得到的连续纤维获得的X射线衍射图提供了含有8wt%V的样品中的V2C的鉴定; 然而,在0.05wt%V的情况下,样品由β-SiC和石墨两相的装置组成。 纤维的机械和热性能暂时令人满意。