油溶性减阻剂三元共聚物的合成和表征

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。利用本体聚合法，在齐格勒纳塔催化体系下，对1辛烯/1癸烯/1十二烯进行三元共聚，用室内模拟环道评价装置测定了聚合物的减阻率，采用正交试验法考察了不同的聚合条件对减阻率的影响。结果表明，最适宜的反应条件如下：V（1辛烯）∶V（1癸烯）∶V（1十二烯）为1∶4∶5，主催化剂TiCl4/MgCl2用量015 g，助催化剂三异丁基铝（TIBA）用量15 mL时，减阻率达到5325％。用乌氏黏度计测定聚合物的特性黏数并关联MarkHouwink方程计算出黏均相对分子质量为6 629 759，通过IR、XRD和1HNMR对聚合物进行表征，证明该方法所得聚合物聚合度较高，具有工业价值。

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关键词：减阻剂三元共聚减阻率正交试验

Abstract： It is an effective way to increase transmission capacity of pipelines by adding drag reduction agent in oil of pipeline. Drag reduction agent was synthesized by bulk polymerization using ZiegleNatta catalysts and mixed 1octene/1decene/1dodecene as monomers, drag reducing efficiency was evaluated by the simulative loop evaluation apparatus. The intrinsic viscosity of polymer was measured by the Ubbelodhe viscometer, and according MarkHouwink equation the viscosityaverage molecular weight was calculated as 6 629 759 Orthogonal experiment was used to determine the synthetic conditions of polymers, the optimum technological conditions were as following: V(1octene)∶V(1decene)∶V(1dodecene)=1∶4∶5, dosage of TiCl4/MgCl2 was 015 g, TIBA was 15 mL, and the drag reducing efficiency of the ploymers was 5325％. The prepared polymer was characterized by IR, XRD,1HNMR, and the results show that the polymer is well polymerized and has industrial value.

Keywords： drag reduction agent ternary polymerization drag reducing efficiency orthogonal experiment

引用本文:

冉崇文，管民，李惠萍.油溶性减阻剂三元共聚物的合成和表征[J]. 化学工业与工程, 2011,28(3): 14-19

RAN Chong-wen，GUAN Min, LI Hui-ping.Synthesis and Characterization of OilSoluble Drag Reduction Agent by Ternary Polymerization[J]. Chemcial Industry and Engineering, 2011,28(3): 14-19