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1.发明授权
公开(公告)号：US5051216A
公开(公告)日：1991-09-24
申请号：US401775
申请日：1989-09-01
摘要： Acrylonitrile precursor fibers are subjected to a flame-resisting treatment, in an oxidizing atmosphere, while being elongated at least 3%, until a density of 1.22 g/cm.sup.3 is reached. The fibers are further treated to increase density up to 1.40 g/cm.sup.3, and then heat treated while undergoing further elongation, followed by higher temperature heat treatment while under tension. The resulting fibers have excellent properties, including high strand tenacity, high strand modulus, and high density.
摘要翻译： 丙烯腈前体纤维在氧化气氛中进行阻燃处理，同时延伸至少3％，直到达到1.22g / cm 3的密度。 进一步处理纤维以增加至1.40g / cm 3的密度，然后在进一步伸长的同时热处理，然后在张力下进行更高温度的热处理。 所得纤维具有优异的性能，包括高链强度，高链模量和高密度。
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2.发明授权Carbon fibers having high tenacity and high modulus of elasticity and process for producing the same 失效具有高强度和高弹性模量的碳纤维及其制造方法
公开(公告)号：US5281477A
公开(公告)日：1994-01-25
申请号：US682383
申请日：1991-04-09
CPC分类号： D01F9/22 , D01F9/32 , Y10T428/2918
摘要： A carbon fiber of a high tenacity and a high modulus of elasticity having a fiber diameter of 1 to 6 .mu.m, a strand tenacity of 430 kg/mm.sup.2 or more, a strand modulus of elasticity of 28 ton/mm.sup.2 or more and a density of 1.755 g/cm.sup.3 or more, and a process for producing the same.The above-mentioned carbon fiber has extremely useful properties as a raw material for composite materials to be used not only for sporting goods such as fishing rods or golf clubs but also in aerospace industries.
摘要翻译： 一种高强度和高弹性模量的碳纤维，其纤维直径为1〜6（my）m，绞合强度为430kg / mm 2以上，弹性模量为28ton / mm 2以上， 密度为1.755g / cm 3以上，以及其制造方法。 上述碳纤维作为复合材料的原料具有非常有用的特性，不仅用于诸如钓鱼竿或高尔夫球杆之类的体育用品，而且用于航天工业。
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公开(公告)号：US4609540A
公开(公告)日：1986-09-02
申请号：US733797
申请日：1985-05-14
摘要： A process for producing a carbon fiber having a tenacity of 450 kg/mm.sup.2 or more, preferably 500 kg/mm.sup.2 or more, and a modulus of elasticity of 25 ton/mm.sup.2 or more which comprises subjecting a polyacrylonitrile-type fiber to a flame-resisting treatment in a flame-resisting treatment furnace provided with a plural number of driving rolls in an oxidizing atmosphere at 200.degree. to 400.degree. C. under application of multistep elongation, during said treatment the respective percentage of elongation in said multistep elongation being set respectively at a value which is equal to or within .+-.3% of the value of the percentage of elongation En indicating an inflection point Pn obtainable from the load and the percentage of elongation determined in advance by experimental measurements, and then subjecting the treated fiber to carbonization.
摘要翻译： 制造强度为450kg / mm2以上，优选为500kg / mm2以上的弹性模量为25ton / mm 2以上的碳纤维的制造方法，其特征在于，将聚丙烯腈型纤维进行阻燃处理， 在施加多段伸长的情况下，在200-400℃的氧化气氛中在具有多个驱动辊的阻燃处理炉中进行耐蚀处理，在所述处理期间分别设定所述多段伸长率的相应百分率 在等于或者在表示从负载得到的拐点Pn的伸长百分比En的值的±3％的值，以及通过实验测量预先确定的伸长百分比之后，然后对经处理的纤维 碳化。
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公开(公告)号：US4780301A
公开(公告)日：1988-10-25
申请号：US66629
申请日：1987-06-04
摘要： The invention relates to a process for producing carbon fibers which comprises a continuous flame-resisting treatment of acrylic fibers in bundle form containing at least 90% by weight of acrylonitrile in an oxidizing atmosphere at temperatures of 250.degree. to 350.degree. C. by using a plurality of flame-resisting furnace different in heat treatment temperature under such conditions that the fiber density .rho.n after each stage of flame-resisting treatment may be maintained on the level defined by a specific conditional expression and so that the fiber density .rho.k after completion of the flame-resisting treatment may be from 1.34 to 1.40 g/ml, and successively are subjected to carbonizing treatment in an inert atmosphere.
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公开(公告)号：US5142796A
公开(公告)日：1992-09-01
申请号：US598638
申请日：1990-10-23
摘要： A flameresisting apparatus in which two sections, referred to as roller compartments, enclosing a series of rollers provided face to face with one another for transferring precursor fiber, are separated from a heat treatment section by two walls facing each other. The walls include apertures for passage of the precursor fiber. Significantly, the two walls facing each other are provided at a distance which enables the precursor fiber to pass from one wall to the other in 5 to 60 seconds. The surface temperature of the rollers and the temperature of the roller compartments are maintained at a temperature of 10.degree. to 80.degree. C. lower than the temperature of the heat treatment compartment, but not lower than 180.degree. C. In addition, heated air is blown against the precursor fiber into the heat treatment compartment. As a result, a flameresisting apparatus is provided which makes it possible to manufacture precursor fiber for carbon fiber at high speed in a short period of time without fusion of the fibers or other uncontrollable reactions.
摘要翻译： PCT No.PCT / JP90 / 00204 Sec。 371 1990年10月23日第 102（e）1990年10月23日PCT PCT 1990年02月21日PCT公布。 WO90 / 10101 PCT出版物 日期：1990年9月7日。一种调色装置，其中被称为辊室的两个部分包围彼此面对面地设置用于转移前体纤维的一系列辊，通过面向每个的两个壁与热处理部分分离 其他。 壁包括用于前体纤维通过的孔。 显着地，彼此面对的两个壁设置成使得前体纤维能够在5至60秒内从一个壁传递到另一个壁的距离。 辊的表面温度和辊室的温度保持在低于热处理室的温度10℃至80℃的温度，但不低于180℃。此外，加热的空气是 将前体纤维吹入热处理室。 结果，提供了一种阻燃装置，其可以在短时间内高速地制造碳纤维的前体纤维而不会纤维或其它不可控反应的熔合。
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公开(公告)号：US5413858A
公开(公告)日：1995-05-09
申请号：US22267
申请日：1993-02-25
申请人： Akira Hajikano , Seiji Hayashi , Yoshitaka Imai , Kunihiro Aoki
发明人： Akira Hajikano , Seiji Hayashi , Yoshitaka Imai , Kunihiro Aoki
CPC分类号： D01F9/22 , D01F6/18 , Y10T428/2913 , Y10T428/2918
摘要： Acrylic fiber comprising an acrylonitrile-based copolymer comprising 96.0 to 98.5% by weight of acrylonitrile units, 1.0 to 3.5% by weight of acrylamide units and 0.5% by weight or more of methacrylic acid units, the percentage by weight (A) of acrylamide units and the percentage by weight (M) of methacrylic acid units in the copolymer satisfying the following equations (I) and (II), and adsorbed iodine in an amount of 1% by weight or less based on the weight of the copolymer:X=0.21 to 0.23 (I)M+A.sup.x =1.82 to 2.18 (II)A copolymer having the above-mentioned composition is spun by a wet process, while adjusting the modulus in tension of coagulated fiber to approximately 2.0-3.0 g/d, wherein d means denier in terms of the weight of polymer in the coagulated fiber. There is provided acrylic fiber which permits production of carbon fiber with a high tensile strength and a high tensile modulus by pyrolysis for a shorter time. Furthermore, there is provided a process for production, by wet spinning, of precursor fiber which does not show filament breakage for a long period of time and has only a small amount of fuzz.
摘要翻译： 包含丙烯腈系共聚物的丙烯酸纤维，包含丙烯腈单元96.0〜98.5重量％，丙烯酰胺单元1.0〜3.5重量％，甲基丙烯酸单元的0.5重量％以上，丙烯酰胺单元的重量百分比（A） 以及满足下述式（I）和（II）的共聚物中甲基丙烯酸单元的重量百分比（M），以共聚物重量计为1重量％以下的吸附碘：X = 0.21〜0.23（I）M + Ax = 1.82〜2.18（II）通过湿法纺丝具有上述组成的共聚物，同时将凝固纤维的拉伸模量调节至约2.0-3.0g / d，其中 d表示在凝固纤维中的聚合物的重量的旦尼尔数。 提供丙烯酸纤维，其可以通过热解在较短时间内生产具有高拉伸强度和高拉伸模量的碳纤维。 此外，提供了通过湿式纺丝生产长期不显示长丝破裂并且仅具有少量绒毛的前体纤维的方法。
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