• 本文围绕中间相沥青泡沫制备性能进行研究。

    In this paper the preparation and properties of carbon foams from mesophase pitch are addressed.

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  • 着重研究了缩聚法中间相沥青中空纤维力学性能

    Especially the mechanical properties of hollow carbon fibers prepared from thermal condensation mesophase pitch precursor were studied.

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  • 分别以沥青石油中间相沥青AR沥青为前驱体制泡沫材料。

    Carbon foams were prepared from coal tar pitch, petroleum mesophase pitch, and ar pitch.

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  • 采用空气氧气做为氧化介质直径中间沥青纤维进行不熔化处理。

    In this paper, pure oxygen is used to stabilized large diameter mesophase pitch fibers, which was found to be more effective than air.

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  • 采用中间相沥青微粒旋转式反应釜进行反应制备沥青

    Pitch fluoride powders were prepared through the reaction between mesophase pitch grain and fluorine gas in rotative nickel reactor.

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  • 通常用于制备泡沫原料包括有机聚合物中间相沥青以及煤系物。

    In general, organic polymers, mesophase pitch, coal and coal-related materials can be used as the starting materials for the production of carbon foams.

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  • 金属导率(TC)还要高中间相沥青碳纤维倍受世人关注。

    Mesophase pitch-based carbon fibers, which are of higher thermal conductivity (tc) than that of metals such as Ag and Cu, are noticeable in the world.

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  • 沥青调制的中间相沥青在熔过程中纺丝温度较高不利于稳定连续纺丝

    The mesophase pitch derived from refined coal tar Pith has a higher spinning temperature during melt-spinning, which is unfavorable to stable continuous spinning.

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  • 中间相沥青制造高性能碳纤维是今后工业生产碳纤维主要技术路线之一

    The commercial production of high performance carbon fibre from mesophase asphalt will be one of the main technical routes hereafter.

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  • 中间相沥青作碳源,硅胶水溶液作造孔剂,采用胶体印刻法制得一系列中孔碳。

    Mesoporous carbons(MCs)were prepared by an imprinting method, using mesophase pitch and nanometer colloidal silica solution as carbon precursors and pore generators, respectively.

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  • 通过控制原料中一次PI的含量聚合条件获得粒径分布中间相沥青微球。

    The MCMB product with a narrower size distribution could be obtained by controlling the primary PI content in coal tar and the polymerization conditions.

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  • 熔纺时控制挤出流量牵伸速率良好匹配获得了丝均匀直径中间相沥青单丝

    The large diameter mesophase pitch carbon monofiber in uniform size was obtained by controlling the matching of extrusion flow and drawing rate.

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  • 石油催化裂化渣油为原料,调制出可性的中间沥青,并纺出均匀中间相沥青纤维

    Spinnable mesophase pitch was prepared from catalytic cracking residue of petroleum and uniform mesophase pitch carbon fibre (MPPCF) was obtained.

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  • HRTEM下,中间沥青晶格条纹排列规整一种长程有序晶体结构,晶化程度很高

    Under HRTEM, the lattice fringes of the mesophase pitch carbon are arranged regularly, is a long range ordered crystal structure, and the preferred orientation is high.

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  • 空气作为氧化气氛,考察氧化温度、氧化停留时间中间含量中间相沥青纤维熔化处理影响

    Influence of mesophase content, oxidation temperature and oxidation residence time on the non fusible treatment of mesophase petroleum pitch fibre was investigated under air atmosphere.

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  • 具有导热、低密度的新型高性能泡沫最近发现的一种高新材料中间相沥青前驱体,然后发泡、碳化石墨化制得。

    Carbon foam is a novel thermal management material which is produced from mesophase pitch, and possesses high thermal conductivity after carbonization and graphitization.

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  • 并且对比了带形与圆形截面中间相沥青纤维不同条件下得到不熔化纤维的红外谱图,分析了它们不熔化过程中各基团的变化。

    By means of oxidation themal gravity(TG) on new ribbon-shaped mesophase pitch-based fibers, its system of increasing temperature in thermal-oxidized stabilization process was estabilished.

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  • 石油沥青沥青中制取沥青中间相物质。

    A pitch mesophase can be prepared from petroleum pitch and coal tar pitch.

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  • 石油沥青和煤沥青制取沥青中间相物质。

    A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch.

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  • 偏光显微镜观察表明:沥青具有良好中间相转化行为。

    Excellent mesophase pitch from this pitch was observed under hot stage optical microscope.

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  • 研究结果表明:改性后沥青不仅出现大量中间相小球,而且耐热性优良作为材料优质的基体前驱体

    It was indicated that the modified coal pitch, which had not only a great deal of mesophase microbead but good thermostability as well, can be qualified to be an excellent carbon precursor.

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  • 通过大庆裂化渣油新疆天然沥青两种典型试样在转化中间转化过程考察,初步探讨中间相形成的一般规律。

    Thermal pyrolysis of Daqing thermal tar and Xinjiang natural bitumen at various tempertures were studied with the purpose of investigating the mesophase transformation.

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  • 沥青原料采用程序升温、多管井式坩埚进行热转化反应,研究不同结构反应器中中间相聚合行为。

    Orderly growth of mesophase was studied using FCC slurry as raw materials, in a multi-tube well-crucible furnace controlled by programmed heating.

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  • 扫描电子显微镜SEM)分析沥青中原生淋不溶物(QI形貌,考察了不同有机溶剂分离中间相微球影响

    The morphology of pri- mary QI was observed under Scanning Electron Microscope (SEM) . The effects of solvents on the seperation of MCMBs were examined.

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  • 结果表明沥青中间相具有优良类石墨准晶态结构,它们结晶参数石油应参数较为接近。

    The results showed that pitch-mesophase possesses excellent graphite-like para-crystalline structure, the crystal parameters of which are quite adjacent to those of calcined petroleum cokes.

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  • 研究了煤系针状焦原料沥青中间相生成机理过程;

    The paper compared and analyzed the micro structure differences of the coal base needle coke products produced with the different production techniques at home and abroad.

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  • 研究了煤系针状焦原料沥青中间相生成机理过程;

    The paper compared and analyzed the micro structure differences of the coal base needle coke products produced with the different production techniques at home and abroad.

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