本文围绕中间相沥青基泡沫炭的制备及性能进行研究。
In this paper the preparation and properties of carbon foams from mesophase pitch are addressed.
着重研究了热缩聚法中间相沥青制得的中空炭纤维的力学性能。
Especially the mechanical properties of hollow carbon fibers prepared from thermal condensation mesophase pitch precursor were studied.
分别以煤沥青、石油中间相沥青和AR沥青为前驱体制备炭泡沫材料。
Carbon foams were prepared from coal tar pitch, petroleum mesophase pitch, and ar pitch.
采用空气和氧气做为氧化介质对大直径中间相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.
采用中间相沥青微粒在旋转式反应釜中与氟气进行反应制备出氟化沥青。
Pitch fluoride powders were prepared through the reaction between mesophase pitch grain and fluorine gas in rotative nickel reactor.
通常用于制备泡沫炭的原料包括有机聚合物、中间相沥青以及煤和煤系物。
In general, organic polymers, mesophase pitch, coal and coal-related materials can be used as the starting materials for the production of carbon foams.
比金属银、铜热导率(TC)还要高的中间相沥青基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.
由煤沥青调制的中间相沥青在熔纺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.
由中间相沥青制造高性能碳纤维,是今后工业生产碳纤维的主要技术路线之一。
The commercial production of high performance carbon fibre from mesophase asphalt will be one of the main technical routes hereafter.
用中间相沥青作碳源,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.
通过控制原料中一次PI的含量及聚合条件,获得较窄粒径分布的中间相沥青炭微球。
The MCMB product with a narrower size distribution could be obtained by controlling the primary PI content in coal tar and the polymerization conditions.
熔纺时控制了挤出流量和牵伸速率的良好匹配,获得了丝径均匀的大直径中间相沥青炭单丝。
The large diameter mesophase pitch carbon monofiber in uniform size was obtained by controlling the matching of extrusion flow and drawing rate.
以石油系催化裂化渣油为原料,调制出可纺性的中间相沥青,并纺出均匀的中间相沥青纤维。
Spinnable mesophase pitch was prepared from catalytic cracking residue of petroleum and uniform mesophase pitch carbon fibre (MPPCF) was obtained.
在HRTEM下,中间相沥青炭的晶格条纹排列规整,是一种长程有序的晶体结构,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.
以空气作为氧化气氛,考察了氧化温度、氧化停留时间、中间相含量对中间相沥青纤维不熔化处理的影响。
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.
具有高导热、低密度的新型高性能碳泡沫是最近发现的一种高新材料,它以中间相沥青为前驱体,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.
并且对比了带形与圆形截面中间相沥青纤维在不同条件下得到的不熔化纤维的红外谱图,分析了它们在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.
从石油沥青和煤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.
从石油沥青和煤沥青中制取沥青中间相物质。
A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch.
热台偏光显微镜观察表明:该沥青具有良好的中间相转化行为。
Excellent mesophase pitch from this pitch was observed under hot stage optical microscope.
研究结果表明:改性后的煤沥青不仅出现大量的中间相小球,而且耐热性优良,可作为炭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.
通过对大庆热裂化渣油、新疆天然沥青两种典型试样在热转化时中间相转化过程的考察,初步探讨了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.
以煤沥青为原料,采用程序升温、多管井式坩埚炉进行热转化反应,研究不同结构反应器中中间相的热聚合行为。
Orderly growth of mesophase was studied using FCC slurry as raw materials, in a multi-tube well-crucible furnace controlled by programmed heating.
用扫描电子显微镜(SEM)分析了煤沥青中原生喹淋不溶物(QI)的形貌,考察了不同有机溶剂对分离中间相微球的影响;
The morphology of pri- mary QI was observed under Scanning Electron Microscope (SEM) . The effects of solvents on the seperation of MCMBs were examined.
结果表明,沥青中间相具有较优良的类石墨准晶态结构,它们的结晶参数与石油焦的相应参数较为接近。
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.
研究了煤系针状焦原料煤沥青中间相的生成机理及成焦过程;
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.
研究了煤系针状焦原料煤沥青中间相的生成机理及成焦过程;
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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