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. 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。
Coal tar pitch was oxidized with a mixture of concentrated sulfuric acid and nitric acid at 30? ℃ and converted into aqua mesophase pitch in a high yield, which was dissolved in aqueous solution of ammonia hydroxide and carbonaceous hydrogel was formed. 以高温煤焦油沥青为炭源,经浓硝酸和浓硫酸混合物在30℃氧化制备出较高收率的水性中间相沥青。
Firstly, we design the molecular structure for coal tar pitch, and modify industrial medium-temperature coal tar pitch with divinylbenzene ( DVB) and p-methyl benzaldehyde ( PMB) in the presence of p-toluene sulfonic acid ( PTS), the modification mechanism of which is studied. 首先对煤沥青的分子结构进行设计,然后分别采用二乙烯基苯(DVB)、对甲基苯甲醛(PMB)对工业中温煤沥青进行了改性,并分析了煤沥青的改性机理;
The preparation of aqua mesophase pitch ( AMP) was investigated by oxidation of coal tar pitch with mixtures of concentrated sulfuric acid and nitric acid. 以煤焦油沥青为原料,以浓硫酸和浓硝酸为氧化剂,可得到易溶于碱性水溶液的水性中间相沥青。