Carbon fiber cord for rubber reinforcement
    4.
    发明授权
    Carbon fiber cord for rubber reinforcement 失效
    用于橡胶加固的碳纤维帘线

    公开(公告)号:US4883712A

    公开(公告)日:1989-11-28

    申请号:US945994

    申请日:1986-12-24

    摘要: A carbon fiber cord for rubber reinforcement comprising a carbon fiber bundle having coated thereon from 5 to 50% by weight, based on the total weight of the carbon fiber bundle thus treated, of a resin composition comprising a mixture of 100 parts by weight of a butadiene-acrylonitrile copolymer having a carboxyl group on at least both terminals of the molecule of the copolymer and from 5 to 40 parts by weight of an epoxy resin, or a reaction mixture obtained therefrom, and a curing agent for the epoxy resin, and further coated thereon from 0.5 to 5% by weight, based on the total weight of the carbon fiber bundle and the resin composition coated thereon, of a mixture of a phenolformalin-rubber latex type adhesive for rubber. The carbon fiber cord exhibits excellent adhesion to rubber and fatigue resistance.

    摘要翻译: 一种用于橡胶增强物的碳纤维帘线,包括其上涂覆有5至50重量%的碳纤维束,基于如此处理的碳纤维束的总重量,该树脂组合物包含100重量份的 在共聚物分子的至少两个末端具有羧基的丁二烯 - 丙烯腈共聚物和5〜40重量份的环氧树脂,或由其得到的反应混合物和环氧树脂的固化剂,以及进一步 基于碳纤维束和涂覆在其上的树脂组合物的总重量,涂覆其上的0.5至5重量%的用于橡胶的酚醛缩甲醛橡胶胶乳型粘合剂的混合物。 碳纤维帘线表现出优异的橡胶粘附性和耐疲劳性。

    Process for producing carbon fibers
    5.
    发明授权
    Process for producing carbon fibers 失效
    生产碳纤维的方法

    公开(公告)号:US4069297A

    公开(公告)日:1978-01-17

    申请号:US674244

    申请日:1976-04-06

    CPC分类号: D01F9/14 D01F9/22 D01F9/32

    摘要: A process for continuously producing carbon fibers which comprises preoxidizing polyacrylonitrile fibers containing at least about 90% by weight of acrylonitrile at a temperature of about 200.degree. to about 300.degree. C in an oxidizing atmosphere while allowing the fibers to shrink about 40 to about 70% (of the free shrinkage of the fibers determined under a load of 1 mg/d) with the progress of preoxidation; then carbonizing the preoxidized fibers at about 500.degree. to about 1,000.degree. C in a non-oxidizing atmosphere so that the shrinkage of the fibers finally becomes about 40 to about 70% (of the free shrinkage of the preoxidized fibers determined when the fibers are placed under a load of 1 mg/d and heated at 1,000.degree. C for 15 minutes); and then heat treating the carbonized fibers at constant length at a temperature of up to about 3,000.degree. C in a non-oxidizing atmosphere.

    摘要翻译: 一种连续生产碳纤维的方法,其包括在约200至约300℃的温度下在氧化气氛中预氧化含有至少约90重量%的丙烯腈的聚丙烯腈纤维,同时使纤维收缩约40至约70% (在1mg / d的负荷下测定的纤维的自由收缩)随着预氧化的进行; 然后在非氧化气氛中将约500℃至约1000℃的预氧化纤维碳化,使得纤维的收缩最终变为约40至约70%(当放置纤维时测定的预氧化纤维的自由收缩率 在1mg / d的负荷下,在1000℃下加热15分钟); 然后在非氧化性气氛中在高达约3000℃的温度下以恒定长度热处理碳化纤维。

    Emulsion type sizing agent for carbon fibers, process for its
preparation, and method for using same
    7.
    发明授权
    Emulsion type sizing agent for carbon fibers, process for its preparation, and method for using same 失效
    用于碳纤维的乳液型上浆剂,其制备方法及其使用方法

    公开(公告)号:US4420512A

    公开(公告)日:1983-12-13

    申请号:US415198

    申请日:1982-09-07

    CPC分类号: D01F11/14

    摘要: An aqueous emulsion type sizing agent for carbon fibers is disclosed. The sizing agent contains a compound represented by the following general formula (I): ##STR1## wherein A represents (C.sub.2 H.sub.4 O).sub.l or (C.sub.2 H.sub.4 O).sub.n (C.sub.3 H.sub.6 O).sub.m [l is 18 to 70; n is 18 to 70; and m is 2 to 50 (1.ltoreq.n/m.ltoreq.35)];a compound represented by the following general formula (II): ##STR2## wherein R represents C.sub.q H.sub.2q+1 or ##STR3## (q is 10 to 18; and p is 15 to 70); and an epoxy resin, a process for preparation of the agent, and the method for using it are also disclosed. The sizing agent has excellent emulsion stability and heat stability, and it can impart excellent bundling properties to carbon fibers.

    摘要翻译: 公开了一种用于碳纤维的水性乳液型施胶剂。 上浆剂含有下列通式(I)表示的化合物:其中A表示(C 2 H 4 O)1或(C 2 H 4 O)n(C 3 H 6 O)m [I为18至70; n为18至70; m为2〜50(1≤n/m≤35)]。 由下列通式(II)表示的化合物:其中R表示CqH2q + 1或(IMA)(q为10〜18,p为15〜70)。 和环氧树脂,制备该试剂的方法及其使用方法。 上浆剂具有优异的乳液稳定性和热稳定性,可赋予碳纤维优异的捆扎性能。

    High-strength carbonaceous fiber
    9.
    发明授权
    High-strength carbonaceous fiber 失效
    高强度碳质纤维

    公开(公告)号:US4671950A

    公开(公告)日:1987-06-09

    申请号:US798060

    申请日:1985-11-14

    IPC分类号: D01F9/22 D01F9/32 D01F9/12

    CPC分类号: D01F9/22 D01F9/32

    摘要: A carbonaceous fiber having a carbon content of from 70 to 90%, a high tensile strength and a high modulus of elasticity, which is produced by a method which comprises preoxidizing an acrylic fiber in an oxidizing atmosphere at a temperature of from 10.degree. to 60.degree. C. below the decomposition point of said fiber, to prepare a preoxidized fiber having a degree of orientation of not less than 78% at an angle of X-ray diffraction (2.theta.) of 25.degree. and a specific gravity of from 1.30 to 1.40, pyrolyzing the preoxidized fiber in an inert gas atmosphere by passing the fiber firstly through a lower temperature zone having a temperature of not higher than 750.degree. C. and then through a higher temperature zone having a temperature of from 750.degree. to 950.degree. C., during the pyrolysis controlling the tension of the fiber so that the change of the fiber length during pyrolyzing is from +16% to -8.8% based on the length of the preoxidized fiber.

    摘要翻译: 碳含量为70〜90%,高拉伸强度和高弹性模量的碳纤维,其通过包括在氧化气氛中在10℃至60℃的温度下预氧化丙烯腈纤维的方法 在低于所述纤维的分解点的温度下,在X射线衍射(2θ)为25°,比重为1.30至1.30的范围内制备取向度不低于78%的预氧化纤维 1.40,通过使纤维首先通过温度不高于750℃的较低温度区,然后通过温度为750℃至950℃的较高温度区,在惰性气体气氛中热解预氧化纤维 在热解期间,控制纤维的张力,使热解过程中纤维长度的变化基于预氧化纤维的长度为+ 16%至-8.8%。

    Production of carbon fibers from acrylonitrile based fibers
    10.
    发明授权
    Production of carbon fibers from acrylonitrile based fibers 失效
    从丙烯腈基纤维生产碳纤维

    公开(公告)号:US4397831A

    公开(公告)日:1983-08-09

    申请号:US200623

    申请日:1980-10-27

    IPC分类号: D01F9/22 D01F9/32

    CPC分类号: D01F9/32 D01F9/22

    摘要: An acrylonitrile based fiber is disclosed which is composed of copolymers comprising at least 96 mole % of acrylonitrile and 1.times.10.sup.-2 to 70.times.10.sup.-2 mole % of a vinyl component or vinyl components containing acidic groups, and containing a specific amount of zinc. The fiber is used in production of oxidized or flame resistant fiber. The oxidized or flame resistant fiber is produced by heat-treating or oxidizing the acrylonitrile based fiber in an oxidation furnace equipped with a plurality of roller units while limiting the shrinkage of the acrylonitrile based fiber within specific limits as the oxidation proceeds. On carbonizing the above oxidized or flame resistant fiber while limiting the shrinkage thereof a carbon fiber which is of high strength and low fluffing is obtained.

    摘要翻译: 公开了一种基于丙烯腈的纤维,其由包含至少96摩尔%的丙烯腈和1×10-2至70×10-2摩尔%的乙烯基组分或含有酸性基团的乙烯基组分并含有特定量的锌的共聚物组成。 该纤维用于生产氧化或阻燃纤维。 氧化或阻燃纤维通过在配备有多个辊单元的氧化炉中热处理或氧化丙烯腈基纤维来制造,同时将丙烯腈基纤维的收缩限制在氧化进行的特定限度内。 在对上述氧化或阻燃纤维进行碳化同时限制其收缩的同时获得高强度和低绒毛的碳纤维。