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| 1 | 甲基丙烯酸酯-乙烯基吡啶-丙烯锌三元缔合型配位络合石油减阻剂的合成及其减阻和抗剪切性能的研究显示文摘配位络合石油减阻剂的主要合成方法为溶液聚合和乳液聚合,为确定最佳聚合方法,以甲基丙烯酸和正十二醇合成了较纯的甲基丙烯酸十二酯。以苯乙烯与合成的甲基丙烯酸十二酯为原料、4-乙烯基吡啶和甲基丙烯锌为聚合极性单体,分别采用溶液聚合和乳液聚合的方法合成了缔合型配位络合石油减阻剂。利用红外谱图表征了缔合型配位络合石油减阻剂分子的结构,用热分析仪与动态光散射粒度分析仪对减阻聚合物进行了表征测试,采用减阻剂减阻效果环道测试评价系统,分别对两体系进行了减阻性能与抗剪切性能的比较研究。研究结果表明:两种方法均可获得有效的缔合型配位络合石油减阻剂,但是乳液聚合产物的流体力学半径更大,玻璃化转变温度(glass transition temperature,TG)更高,表明缔合作用更强,减阻和抗剪切性能均优于溶液聚合产物,同时乳液聚合得到的减阻剂产率较高,因此缔合型配位络合石油减阻剂的最佳聚合方法是乳液聚合。 | 陈世伟 慕春玲 吕小博 王齐天 张长桥 | 2012 | 山东大学学报(工学版)2012，42，2： | 3 |
| 2 | 聚合物减阻剂性能优化方法的研究进展显示文摘聚合物减阻剂具有少量高效的优点,但其抗剪切性不足。分析了聚合物减阻剂的减阻机理及影响因素,综述了近年来聚合物减阻剂的减阻性能及储存稳定性的改进方法,包括嫁接法、改变分子结构、加入表面活性剂、引入缔合型键等,其中,加入表面活性剂可扩宽有效减阻范围、抗剪切性好、减阻更加稳定。对聚合物减阻剂的发展进行了展望。 | 马艳红 陆江银 魏生华 | 2017 | 石油化工2017，46，2： | 0 |
| 3 | Preparation of Poly-α-Olefin Microcapsule Particles Coated with Polyurethane as a Drag Reducer Based on Interface Polymerization显示文摘The molecular behavior of polyurethane(PU)coating materials during the surface adsorption of poly-α-olefin as a drag reducing polymer was explored by a molecular dynamics simulation.Three different PU capsule wall materials were synthesized using two reaction monomers,and a poly-α-olefin/PU drag reducer microcapsule was prepared based on interface polymerization.The structure,morphology,thermal stability,compressive strength,and drag reduction performance of the microcapsules were characterized and compared.The results showed that a non-bonding interaction induced the adsorption of the PU coating material,poly-α-olefin and PU then fused at the interface,and the PU coating material was embedded into the inner grooves of poly-α-olefin in the form of a local mosaic,thereby forming a stable core–shell structure.The morphological characterization indicated that PU and poly-α-olefin could form microcapsule structures.The thermal decomposition temperature of the microcapsule was dependent on the type of capsule wall material.The microcapsule structure had a slight effect on poly-α-olefin drag reduction.The system enabled poly-α-olefin to exist in powdered particles through microcapsulation,and had a good dispersion effect that facilitated storage and transport processes.The method effectively inhibited the accumulation and bonding of poly-α-olefin at room temperature. | Li Chenhao Lu Yong Li Hao Chen Yue Meng Yeqiao Zhou Pengfei Xu Dan Wang Yiran Zhang Xiaolai | 2023 | China Petroleum Processing & Petrochemical Technology2023，25，2： | 0 |
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