复合油品减阻剂初步合成及性能测试

Preliminary preparation and performance testing of composite oil product DRA

为了解决高分子聚合物类油品减阻剂存在的抗剪切性能差的问题,将纳米粒子与聚合物减阻剂进行复合,采用硅烷偶联剂对无机纳米粒子(Si O2、蒙脱土、V2O5、Ca CO3、Ti O2)进行亲油改性,并分别将改性纳米粒子与自制的界面相容剂及聚α-烯烃复配制备了一类新型的复合油品减阻剂。减阻剂试验环道测试结果表明:含有纳米Si O2和纳米蒙脱土的减阻剂抗剪切效果最佳,所制备的复合油品减阻剂不仅抗剪切性能提高了约200%,而且减阻增输性能也得到相应的提高。

Current oil product drag reducing agents （DRAs） composed of high molecular polymers are poor in shear resistance capacity. In order to solve this problem, a new type of composite oil product DRA was proposed in this paper. Firstly, nano-particles were combined with polymer DRA. Then, the performance of inorganic nano-particles （SiO2, montmorillonite, V2O5, CaCO3 and TiO2） was modified by using silane coupling agents. And finally, the modified nano- particles were combined with self-made interface compatible agent and polymer α-alkene together to prepare the new DRA. It is shown from the loop drag reduction testing that the DRA with nano-SiO2 and nano-montmorillonite is the best in shear resistance capacity. Compared with traditional DRAs, this composite oil product DRA is 200% higher in shear resistance capacity and better in drag reduction and transportation boosting performance.