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- coal tar pitch carbon fiber 煤沥青碳纤维
- Carbon foams were prepared from coal tar pitch, petroleum mesophase pitch, and AR pitch. 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。
- Modification of coal tar pitch(CTP) as carbon materials was studied using 4-methyl benzaldehyde(4-MB) as modifier by an acid catalyst. 以对甲基苯甲醛(4-methyl benzaldehyde,简称4-MB)为改性剂,在对甲苯磺酸(PTS)的作用下对煤沥青进行了改性研究。
- Modification of coal tar pitch as a carbon precursor was studied using divinylbenzene (DVB) as a cross linking agent by the aid of acid catalyst. 首次以二乙烯基苯为交联剂,在酸性催化剂的作用下对煤沥青进行了改性研究,同时对改性后的煤沥青进行显微结构和耐热性分析。
- Abstract : Tantalum-containing pitch as a carbon precursor was synthesized by an in situ liquid phase reaction between coal tar pitch and tantalum pentachloride. 摘要 ： 以煤沥青为原料，氯化钽为钽源，通过化学反应制备了含钽沥青前驱体。
- High quality modified pitch for carbon materials were prepared from medium-temperature coal tar pitch with an acid(PTS)as catalyst and with divinylbenzene(DVB) as cross-linking agent. 以二乙烯基苯(DVB)为交联剂,在对甲苯磺酸(PTS)的作用下对中温煤沥青进行改性,制备出性能优良的炭材料用改性沥青,并对改性沥青的性能进行表征。
- A high quality activated carbon has been prepared from coal tar pitch by chemical activation method using KCNS solution as an activating agent and through appropriate technical conditions. 以煤焦油沥青为原料,使用KCNS溶液活化处理,选择适宜的工艺条件,制备出优质的活性炭。
- Mesophase microbeads were prepared from coal tar pitch by thermal condensation in atmospheric pressure. 以煤焦油沥青为原料采用常压热缩聚工艺制备中间相沥青微球。
- The structure change of medium coal tar pitch(MCTP) during co-carbonization was investigated by using NMR. 使用一种工业重质油和中温煤焦油沥青进行共炭化反应，改善了煤沥青的炭化性质。
- The results show that coal tar pitch and terephthalic aldehyde can be used to synthesize COPNA resin. 结果表明,煤沥青能够与对苯二甲醛合成COPNA树脂,其反应机理为酸催化下的阳离子型缩聚反应;
- Boron-substituted polyaromatic mesophase was prepared by co-pyrolysis of a coal tar pitch with pyridine-borane complex under autogeneous pressure. 以煤焦油沥青和吡啶硼烷为原料采用加压热缩聚工艺制备硼取代聚芳烃中间相沥青。
- Distilling the low temperature coal tar pitch before coking tests, get the pitch with different volatile at different temperature. 在炼焦实验之前，将低温煤焦油进行了蒸馏，通过不同的蒸馏温度得到挥发分不同的沥青。
- Needle coke was prepared through the co-carbonization of toluene soluble fraction (TS) of coal tar pitch and waste polystyrene (WPS) in a tube bomb. 摘要采用煤焦油沥青的甲苯可溶物和废聚苯乙烯共碳化制备针状焦，考察了中间相沥青中烷基含量对针状焦性能的影响。
- Aqua mesophase pitch (AMP) was prepared through oxidation of coal tar pitch with mixtures of concentrated sulfuric acid and nitric acid. 以煤焦油沥青为原料,经过氧化、碱溶制备出水性中间相沥青,着重考察了制备条件对水性中间相沥青在水相中凝胶化的影响。
- This article deals with the kinetics of thermal decomposition process of non-coking coal with modified coal tar pitch used in a steel company. 本文对国内某钢铁公司焦化厂所用的非焦煤配改质沥青的分解过程进行了动力学研究。
- Because of the complicacy of the components of coal tar pitch, the simulation of preparation process of pitch-based composites has not been developed widely. 由于煤沥青成分的复杂性,对煤沥青基复合材料的制备过程的模拟还没有得到广泛开展。
- Differential scanning calorimetry (DSC) and simultaneous thermal analysis (TG, DTA) are employed to study on thermal behavior of the modified coal tar pitch. 采用差示扫描量热法 (DSC)和热重 -差热分析 (TG DTA)对改性前后的煤沥青进行热行为分析。
- Both the oxidation resistance and the electrical conductivity of the pitch coke can be improved when a suitable amount of activating agent is added in the coal tar pitch. 用这种煤沥青制得的沥青焦 ,其抗氧化性提高 ,在活化剂加入量适宜时沥青焦的导电性能也有所提高
- Thc results showed that porsity, bending strength, compressive trength of SCFRC were increased with the increase of the content of coal tar pitch while density decreased. 研究表明，随着粘结剂量的增加，所得炭／炭复合材料的体积密度减小，显气孔率增大，抗弯强度和抗压强度增大。
- Keywords pitch carbon fiber;curing process;IR photoacoustic spectrum; 沥青纤维;不熔化处理;红外光声光谱;
