正交试验在预聚合法合成减阻剂中的应用  

Application of Orthogonal Experiment in Synthesizing Drag Reducer by Prepolymerization

作　　者：苏张教[1] 李惠萍[1] 陈文生[1] 

机构地区：[1]新疆大学化学化工学院,新疆乌鲁木齐830046

出　　处：《当代化工》2009年第3期218-221,225,共5页Contemporary Chemical Industry

基　　金：2006年新疆维吾尔自治区高等学校科研计划项目(060112)

摘　　要：在管输油品中加入减阻剂是提高管线输送能力的有效方法。以TiCl4/A(li-Bu)3为引发体系,用本体预聚合法引发α-烯烃聚合。利用正交试验法确定聚合物的合成条件,分析了预聚合时间、预聚合温度、前后助化剂体积比等因素对聚合产物减阻性能的影响。环道测试结果表明,在优化的合成工艺条件下,能够合成减阻率为50.67%(添加量为10 mg/L),增输率为47.5%的聚合物。Adding drag reducer in oil of pipeline fluid transportation is an effective way to increase transmission capacity of pipelines. TiCh/AI （i-Bu）3 was used as initiating system to initiate α -olefin polymerization by bulk prepolymerization. Orthogonal experiment was used to determine the synthetic conditions of polymers, the influences of prepolymerization temperature and time, the a-olefins and the cocatalyst volume ratio of prepolymerization to postpolymerizationon on drag reducing efficiency were studied. Under the optimal synthetic conditions, the drag re- ducing performance of the polymer was better. The result of drag reducing test in circle conduit indicates that the drag reducing efficiency of 50.67% and the transportation-increasing rate of 47.5% can be achieved by adding mass concentration 10 mg/L drag reducer in diesel fuel.

关 键 词：预聚合 减阻剂 正交试验 Α-烯烃 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]