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    • 2. 发明授权
    • Carbon fiber bundle
    • 碳纤维束
    • US06569523B2
    • 2003-05-27
    • US10293324
    • 2002-11-14
    • Katsuhiko IkedaMasakazu HoshinoTakayoshi YamamotoAritaka ShimotashiroToshihiro MakishimaMasashi Okamoto
    • Katsuhiko IkedaMasakazu HoshinoTakayoshi YamamotoAritaka ShimotashiroToshihiro MakishimaMasashi Okamoto
    • D01F600
    • D01F9/22D01F6/18Y10T428/29Y10T428/2913Y10T428/2918Y10T428/2924Y10T428/2929Y10T428/2967
    • The carbon fiber precursor fiber bundle of the present invention is an acrylonitrile-based fiber bundle wherein the ratio of the length and width of the fiber cross section of a monofilament (length/width) is 1.05 to 1.6, and the amount of Si measured by ICP (Inductively Coupled Plasma) atomic emission spectrometry is in the range of 500 to 4,000 ppm. This type of carbon fiber precursor fiber bundle has a high compactness, and the carbonizing processing ability is good. Furthermore, for the carbon fiber bundle which is to obtained hereafter, the resin impregnating ability and tow spreading ability are good, the strength increases, and it has bulkiness. Furthermore, the carbon fiber precursor fiber bundle of the present invention is an acrylonitrile-based fiber bundle wherein the liquid content ratio HW is 40 wt. % or more and less than 60 wt. %. The carbon fiber bundle obtained from this type of carbon fiber precursor fiber bundle improves the bulkiness and is superior in resin impregnating ability, tow spreading ability, and covering ability when made into cloth.
    • 本发明的碳纤维前体纤维束是单丝纤维横截面的长度和宽度比(长/宽)为1.05〜1.6的丙烯腈系纤维束,由Si测定的Si量 ICP(电感耦合等离子体)原子发射光谱法在500至4,000ppm的范围内。 这种碳纤维前体纤维束具有高密度,碳化处理能力好。 此外,对于以下获得的碳纤维束,树脂浸渍能力和丝束铺展能力好,强度增加,而且具有蓬松性。 此外,本发明的碳纤维前体纤维束是其中液体含有率HW为40重量%的丙烯腈系纤维束。 %以上且小于60重量% %。 由这种碳纤维前体纤维束获得的碳纤维束提高了蓬松性,并且在制成布时具有优异的树脂浸渍能力,丝束铺展能力和覆盖能力。