聚合工艺对聚甲基丙烯酸酯性能的影响  

Effect of Polymerization Process on Properties of Polymethacrylate

作　　者：杨小辉[1] 安文杰[1] 张峻凡 薛卫国[1] Yang Xiaohui;An Wenjie;Zhang Junfan;Xue Weiguo(PetroChina Lanzhou Lubricating Oil R&D Institute,Lanzhou 730060,China;PetroChina Lanzhou Lubricating Oil Plant,Lanzhou 730060,China)

机构地区：[1]中国石油兰州润滑油研究开发中心,兰州730060 [2]中国石油兰州润滑油厂,兰州730060

出　　处：《合成润滑材料》2023年第2期28-30,共3页Synthetic Lubricants

摘　　要：聚甲基丙烯酸酯(PMA)是润滑油中常用的降凝剂,可以通过分子设计等手段来改变PMA侧链的平均碳数分布,以达到最优的降凝效果。就链转移剂,聚合温度及引发剂滴加时间等对PMA的分子质量分布及对倾点的影响进行了探讨。在维持PMA平均碳数不变的情况下,链转移剂,聚合温度及引发剂的滴加时间等对PMA在不同基础油降低倾点的效果没有影响,但会对PMA的分子质量分布及数均分子质量等产生影响。(图6表0参考文献5)Polymethacrylate(PMA)was a commonly used pour point depressant in lubricating oils.The average carbon number distribution of the PMA side chain could be changed by molecular design and other means to achieve the optimal pour point depression effect.The influence of chain transfer agent,polymerization temperature,and initiator dropping time on the molecular weight distribution and pour point of PMA were discussed.While maintaining the average carbon number of PMA unchanged,there were no influence on the effect of PMA on lowering the pour point of different base Stocks by the chain transfer agent,polymerization temperature,and the dropping time of the initiator.However,it would have an impact on the molecular mass distribution and data molecular quality of PMA.(Charts6 Tables0 References5)

关 键 词：链转移剂 聚合温度 引发剂 分子质量分布 倾点 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]