Process for producing carbon fiber
    1.
    发明授权
    Process for producing carbon fiber 失效
    碳纤维生产工艺

    公开(公告)号:US4131644A

    公开(公告)日:1978-12-26

    申请号:US780520

    申请日:1977-03-23

    IPC分类号: D01F9/21 C01B31/07

    CPC分类号: D01F9/21

    摘要: Carbon fibers having excellent modulus of elasticity and tensile strength are produced in a high yield by a process wherein polybutadiene fibers are prepared by melt-spinning polybutadiene having at least 85% of vinyl structure, a melting point of at least 100.degree. C and a reduced viscosity of 0.3 to 1.2 dl/g; the fibers are then treated in a solution or suspension of a Lewis acid in an inert organic liquid, whereby the pollybutadiene is cyclized and cross-linked; the polybutadiene fibers treated as mentioned above are further treated in a melted sulphur or a sulphur-containing solution at a temperature of 170 to 300.degree. C, whereby the cyclized and cross-linked polybutadiene is dehydrogenated and aromatized; and the fibers treated as mentioned above are carbonized by raising the temperature thereof to 750.degree. C to 3000.degree. C to form carbon fibers or graphite fibers. If so desired, the ordinary carbon fibers which have been produced at 750 to 1500.degree. C, can be converted to graphite fibers by heating them to a temperature of 1500 to 3000.degree. C.

    摘要翻译: 具有优异的弹性模量和拉伸强度的碳纤维通过以下方法以高产率生产,其中聚丁二烯纤维通过熔体纺丝具有至少85%的乙烯基结构,熔点至少为100℃的聚丁二烯和减少的 粘度为0.3〜1.2dl / g; 然后将纤维在路易斯酸在惰性有机液体中的溶液或悬浮液中处理,由此将聚丁二烯环化并交联; 如上所述处理的聚丁二烯纤维在熔融硫或含硫溶液中在170〜300℃下进一步处理,由此使环化和交联的聚丁二烯脱氢和芳构化; 如上所述处理的纤维通过将其温度升高至750℃至3000℃而碳化,以形成碳纤维或石墨纤维。 如果需要,在750〜1500℃下生产的普通碳纤维可以通过将其加热至1500〜3000℃的温度而转化为石墨纤维。

    Fiber-reinforced rubber composition and production process thereof and
fiber-reinforced elastic product
    3.
    发明授权
    Fiber-reinforced rubber composition and production process thereof and fiber-reinforced elastic product 失效
    纤维增强橡胶组合物及其生产工艺及纤维增强弹性制品

    公开(公告)号:US5283289A

    公开(公告)日:1994-02-01

    申请号:US717572

    申请日:1991-06-19

    摘要: A fiber-reinforced rubber composition capable of providing a vulcanizate having an excellent strength and modulus and a production process thereof. This fiber-reinforced rubber composition includes fine short fibers of thermoplastic polymer having ##STR1## groups buried in vulcanizable rubber. The vulcanizable rubber and the thermoplastic polymer are grafted to each other through a resol type alkylphenol formaldehyde resin precondensate or a novolak type phenol formaldehyde resin precondensate at an interface of the fiber. The ratio of the fiber to the vulcanizable rubber (A) 1 to 70 parts by weight based on 100 parts by weight of the rubber in the case of the resol type alkylphenol formaldehyde resin precondensate or (B) 1 to 100 parts by weight based on 100 parts by weight of the rubber in the case of the novolak type phenol formaldehyde resin precondensate.

    摘要翻译: 能够提供强度和模量优异的硫化橡胶的纤维增强橡胶组合物及其制造方法。 这种纤维增强橡胶组合物包括具有埋在可硫化橡胶中的(*化学结构*)组的热塑性聚合物的细短纤维。 可硫化橡胶和热塑性聚合物通过甲阶酚醛树脂型酚醛树脂预缩合物或酚醛清漆型酚醛树脂在纤维界面处预缩合而相互接枝。 在甲阶型烷基酚甲醛树脂预缩合物的情况下,纤维与可硫化橡胶(A)的比例为1〜70重量份,相对于100重量份橡胶,或(B)1〜100重量份,基于 在酚醛清漆型酚醛树脂预缩合的情况下,100重量份的橡胶。

    Process for producing fiber-reinforced elastic articles
    7.
    发明授权
    Process for producing fiber-reinforced elastic articles 失效
    生产纤维增强弹性制品的方法

    公开(公告)号:US4202850A

    公开(公告)日:1980-05-13

    申请号:US891462

    申请日:1978-03-29

    IPC分类号: C08J5/04 C08L21/00 B29D3/02

    摘要: Disclosed is a process for producing fiber-reinforced elastic articles comprising: 1 to 20 parts by weight of 1,2-polybutadiene fibrils dispersed in a matrix of 100 parts by weight of a rubber material. In the process, the 1,2-polybutadiene in the form of particles are dispersed in the matrix of rubber material; the dispersion is extruded through a die at a temperature of at least 5.degree. C. above the melting point of 1,2-polybutadiene, but not exceeding 240.degree. C., to convert the particles of 1,2-polybutadiene into fibrils; the extruded dispersion is rolled by means of a pair of rollers to increase the degree of molecular orientation of the 1,2-polybutadiene fibrils, and; a composition comprising an elastic material matrix, the 1,2-polybutadiene fibrils dispersed in the elastic material matrix and a vulcanizing agent is shaped and vulcanized at an elevated temperature.

    摘要翻译: 公开了一种生产纤维增强弹性制品的方法,其包括:分散在100重量份橡胶材料的基质中的1至20重量份的1,2-聚丁二烯原纤维。 在此过程中,颗粒形式的1,2-聚丁二烯分散在橡胶材料的基体中; 该分散体在高于1,2-聚丁二烯的熔点至少5℃的温度下通过模具挤出,但不超过240℃,以将1,2-聚丁二烯的颗粒转化为原纤维; 挤出的分散体通过一对辊轧制以增加1,2-聚丁二烯原纤维的分子取向度; 包含弹性材料基体,分散在弹性材料基体中的1,2-聚丁二烯原纤维和硫化剂的组合物在升高的温度下成型和硫化。

    Fiber-reinforced chlorinated polyethylene composition and process for
production thereof
    8.
    发明授权
    Fiber-reinforced chlorinated polyethylene composition and process for production thereof 失效
    纤维增强氯化聚乙烯组合物及其生产方法

    公开(公告)号:US5234997A

    公开(公告)日:1993-08-10

    申请号:US496401

    申请日:1990-03-20

    IPC分类号: C08L23/26 C08L23/28 C08L77/00

    CPC分类号: C08L23/286 C08L77/00

    摘要: A fiber-reinforced chlorinated polyethylene composition comprises 100 parts by weight of a continuous phase of a chlorinated polyethylene and 2-100 parts by weight of a polyamide dispersed in the continuous phase in a fine short fiber form. Further a process comprises kneading a chlorinated polyethylene and a fiber-formable polyamide at a temperature not lower than the melting point of the polyamide and then stretching the kneaded product to obtain the above fiber-reinforced chlorinated polyethylene composition. When in the above process, the kneading is effected by further adding a reactive binder, there can be obtained a fiber-reinforced chlorinated polyethylene composition wherein the compatibility and dispersion of the fiber-formable polyamide with and in the chlorinated polyethylene are improved. The fiber-reinforced chlorinated polyethylene composition is superior in mechanical properties, fatigue resistance and heat resistance and further has good processability, and can be suitably used in the wide field of chlorinated polyethylene applications.

    摘要翻译: 纤维增强氯化聚乙烯组合物包含100重量份的连续相的氯化聚乙烯和2-100重量份的以细短纤维形式分散在连续相中的聚酰胺。 此外,该方法包括在不低于聚酰胺的熔点的温度下捏合氯化聚乙烯和可成纤聚酰胺,然后拉伸捏合产物,得到上述纤维增强氯化聚乙烯组合物。 当在上述方法中,通过进一步添加反应性粘合剂进行捏合,可以获得纤维增强氯化聚乙烯组合物,其中可提高可熔性聚酰胺与氯化聚乙烯中的相容性和分散性。 纤维增强氯化聚乙烯组合物的机械性能,耐疲劳性和耐热性优异,进一步具有良好的加工性能,可广泛应用于氯化聚乙烯应用领域。

    Fiber-reinforced rubber composition and production process thereof and
fiber-reinforced elastic product
    9.
    发明授权
    Fiber-reinforced rubber composition and production process thereof and fiber-reinforced elastic product 失效
    纤维增强橡胶组合物及其生产工艺及纤维增强弹性制品

    公开(公告)号:US4703086A

    公开(公告)日:1987-10-27

    申请号:US788524

    申请日:1985-10-21

    摘要: A fiber-reinforced rubber composition capable of providing a vulcanizate having an excellent strength and modulus and a production process thereof. This fiber-reinforced rubber composition includes fine short fibers of thermoplastic polymer having ##STR1## groups buried in vulcanizable rubber. The vulcanizable rubber and the thermoplastic polymer are grafted to each other through a resol type alkylphenol formaldehyde resin precondensate or a novolak type phenol formaldehyde resin precondensate at an interface of the fiber. The ratio of the fiber to the vulcanizable rubber (A) 1 to 70 parts by weight based on 100 parts by weight of the rubber in the case of the resol type alkylphenol formaldehyde resin precondensate or (B) 1 to 100 parts by weight based on 100 parts by weight of the rubber in the case of the novolak type phenol formaldehyde resin precondensate.

    摘要翻译: 能够提供强度和模量优异的硫化橡胶的纤维增强橡胶组合物及其制造方法。 该纤维增强橡胶组合物包括埋在可硫化橡胶中的具有组的热塑性聚合物的细短纤维。 可硫化橡胶和热塑性聚合物通过甲阶酚醛树脂型酚醛树脂预缩合物或酚醛清漆型酚醛树脂在纤维界面处预缩合而相互接枝。 在甲阶型烷基酚甲醛树脂预缩合的情况下,纤维与可硫化橡胶(A)的比例为1〜70重量份,相对于100重量份橡胶,或(B)1〜100重量份,基于 在酚醛清漆型酚醛树脂预缩合的情况下,100重量份的橡胶。