热聚法合成双环戊二烯石油树脂

Synthesis of dicyclopentadiene petroleum resin by thermal polymerization

采用热聚法,以乙烯裂解装置副产C5馏分分离出的双环戊二烯为原料,裂解C9馏分中140℃切割的组分为溶剂油合成了双环戊二烯(DCPD)石油树脂,考察了反应时间、恒温搅拌时间、溶剂种类、溶剂加入量等对DCPD石油树脂的影响。结果表明,制备DCPD石油树脂的最佳条件为:溶剂油质量分数50%～60%,热聚合温度240℃,恒温搅拌时间8h,老化反应时间22h。在上述条件下制备的DCPD石油树脂色相不大于8,软化点高于120℃,产品收率大于50%。

Dicyclopentadiene （DCPD） petroleum resin was synthesized by using DCPD separated from by - product C5 fraction of ethylene pyrolysis as raw material and cut fraction above 140℃ from C9 fraction as solvent oil. The effects of reaction tempera- ture,thermostatic agitation time, kinds of solvent on the DCPD petroleum resin were studied. The results showed that the optimal conditions were：the mass fraction of solvent oil 50% ture 240℃ , thermostatic - 60% , reaction tempera- agitation time 8 h, ageing time 22 h. Under above conditions, the color phase of DCPD petroleum resin below 8, softening point above 120℃ ,and the yield of product above 50%.