煤沥青
- 【冶】coal tar pitch
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G2、G3型环氧煤沥青系列防腐涂料
Coating Material of G_2 and G_3 Type Epoxy Coal Tar Series for Corrosion Protection
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溶剂絮凝法制取低QI煤沥青的研究
A study on low Qi coal tar pitch using solvent flocculation method
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煤沥青中添加Fe(NO3)3的改质效果及其机理初探
The effect of adding fe ( no_3 ) _2 on coal pitch and its mechanism
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低QI含量煤沥青氢化产物的结构性质研究
Study of the structures and properties of hydrogenated pitch with low Qi content
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用FTIR法对煤沥青热氧化过程中结构转变的研究
Study on structural transformation of coal tar pitch in thermo-oxidative processes by FTIR
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FT-IR表明,SBS与煤沥青发生了化学反应。
FT-IR showed that a chemical reaction occurred between asphalt and SBS .
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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 .
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采用FT-IR和元素分析研究改性煤沥青的热解过程。
Pyrolysis process of the modified coal tar pitch is studied using FT IR and element analysis , respectively .
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通过超临界流体(SCF)萃取,改善了煤沥青的炭化性质。
The carbonization properties of coal-tar pitch were modified by supercritical fluid ( SCF ) extraction .
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以沥青焦、煤沥青以及氧化沥青为原料,采用KOH活化法制备高比表面积活性炭。
Activated carbons were prepared from asphalt coke , pitch and oxidated pitch by KOH activation method .
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采用扫描电镜(SEM)观察改性后煤沥青的形貌;采用光学显微镜观察改性沥青热解产物的光学结构。
Polarized microscope is employed to study the optical structure of pyrolyzed substances of the modified coal tar pitch and shapes of the modified coal tar pitch are observed through SEM .
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煤沥青中含有大量的喹啉不溶物(QI)需要彻底脱除,低QI含量的净化煤沥青是制备浸渍剂沥青、中间相沥青、煤系针状焦的优质原料。
Quinoline-insolubles in coal tar pitch should be removed completely . Purified pitch of low QI content is the raw materials of impregnation agent pitch , mesophase pitch and needle coke .
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本文讨论了在煤沥青及其稀释沥青中添加Fe(NO3)3的改质效果,并初步探讨了改质机理。
Abstract In this paper , the effect of adding Fe ( NO3 ) 2 , on the coal pilch and its dilute one is studed . The mechanism of modification is also discussed .
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为了寻求输油管道全天候不停输防腐补伤、补口涂料,笔者介绍了G2、G3型环氧煤沥青涂料的技术性能、配制方法及应用前景。
In exploration of weather-proof and non-stop operation for oil pipeline , the paper introduces those technical performance , preparing and mixing methods and their applicable future of G2 and G3 type epoxy coal tar coating material .
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以煤沥青为原料一次能制备出3kg,BET比表面积为1437m2/g,强度为95%,表面pH值为7.3的沥青基球状活性炭。
Pitch based spherical activated carbon has been prepared with a BET surface area of 1 437 m2 / g and strength of 95 % .
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采用偏光显微镜研究PMB改性煤沥青的光学结构。
Polarized microscope is employed to study the optical structure of semi-coke of the modified pitch .
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采用傅立叶红外光谱(FT-IR)和核磁共振氢谱(1H-NMR)对煤沥青改性机理进行分析;
The modification mechanism was studied by fourier transform infra-red ( FT-IR ) and 1H nuclear magnetic resonance ( 1H-NMR ) spectroscopy technologies , respectively .
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以煤沥青为原料,使用KOH活化处理制备高品质活性炭。
High surface area activated carbon ( HAC ) have been prepared from coal pitch by chemical activation method using KOH as a activating agent .
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通过对2D炭预制体致密化发现,添加剂能够提高煤沥青对高密度的预制体的致密化效率。
It was found that the additive could increase the densification efficiency when the high-density 2D carbon preform was impregnated and carbonized , though it seems the carbon yield maybe decrease to some degree .
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采用热重和示差扫描量热技术(TG-DSC)对改性前后煤沥青的热解行为进行了分析。
Thermal behavior of modified coal tar pitch was analyzed with thermogravimetric and differential scanning calorimetry ( TG-DSC ) .
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探讨QI组分影响煤沥青热聚合改质的机理,结果表明,原料煤沥青所含原生QI炭微粒促进了热聚合改质过程中煤沥青芳烃分子的聚合。
The mechanism of action of the QI component on the modification of coal-tar pitch has been explored . It is found that the primary QI carbonaceous particles enhance the polymerization of aromatic hydrocarbon molecules during the thermal modification .
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分析了改质沥青生产装置的问题,证实了原料中QI含量对改质过程和产品质量的影响,探讨了QI影响煤沥青改质过程的机理。
The existing problems in the modified asphalt production system are analyzed , the effect of QI concentration in feedstock on the modified process and product quality is proved , the influence of QI on mechanism of coal asphalt modified process is discussed .
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以呋喃树脂为改性剂对煤沥青进行了改性,采用傅立叶红外光谱(FT-IR)和扫描电镜(SEM)对呋喃树脂改性煤沥青的机理进行了分析;
Modification of coal tar pitch ( CTP ) as carbon materials was studied using furan resin as a modifer . The modification mechanism was studied using fourier transform infra-red ( FT-IR ) and scanning electronic microscope ( SEM ) respectively .
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二乙烯基苯/煤沥青COPNA树脂热解产物的结构与性能研究
Study on structures and properties of the pyrolyzed substance of condensed polynuclear aromatics resin using coal tar pitch as monomer and divinylbenzene as cross-linking agent
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本论文以中温煤沥青为原料,蒽油和洗油为稀释剂调节煤沥青的软化点,再以混合溶剂离心法脱除软沥青中QI,蒸馏出溶剂得到精制软沥青。
In this paper , medium temperature coal tar pitch was used as the raw material , and anthracene oil and wash oil were used to adjust the softening point as the diluents . Then remove QI from the soft pitch by the method of mixed solvent-centrifugal .
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以1KPAN基高强纤维为增强体,以调制中温煤沥青为基体前驱体,采用高压浸渍-碳化工艺制备出了不同碳化压力状诚下的沥青基碳/碳复合材料。
With 1K PAN-based HT carbon fibers as reinforcing materials and with modulated coal tar pitch as matrix precursor , bi-directional pitch-based carbon-carbon composites were obtained by HPIC ( High-Pressure Impregnation Carbonization ) technology under different carbonization pressure .
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结果表明:TPA改性煤沥青的黏度与温度的关系曲线呈现W型,并且在200~225℃之间处于低黏流区,表观黏度值约200~400mPa。
The experimental findings are as follows : ( 1 ) The curve of the relations between the viscosity and temperature is the " W " profile . There is low viscosity flow area at 200 ~ 225 ℃ in the modified coal tar pitch .
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改性煤沥青的甲苯不溶吡啶可溶物(TI-PS)的含量一般保持在16.0%~19.0%;
The content of TI-PS , which dissolves in pyridine but toluene , keeps a value from 16.0 % to 19.0 % .
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煤沥青用四氢呋喃萃取分离得到四氢呋喃可溶物(THFS)和四氢呋喃不溶物(THFI)。
Coal pitch is extracted with tetrahydrofuran to obtain tetrahydrofuran soluble ( THFS ) and tetrahydrofuran insoluble ( THFI ) .
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本文进行了以煤沥青为单体、二乙烯基苯(DVB)为交联剂缩合多核芳烃(COP-NA)树脂热解产物的结构与性能研究。
We have successfully synthesized the condensed polynuclear aromatic ( COPNA ) resin using coal tar pitch as monomer and divinylbenzene ( DVB ) as cross-linking agent in the presence of p-toluene sulfonic acid , the pyrolyzed substance structures and properties of which are studied in this paper .