一种两面性磁响应颗粒及其制备方法与应用

徐政和; 杨帆; 谢汉杰; 卢周广

徐政和

南方科技大学

南方科技大学

518055 广东省深圳市南山区学苑大道1088号

南方科技大学

518055 广东省深圳市南山区学苑大道1088号 (广东,深圳,南山区)

南方科技大学

518055 广东省深圳市南山区学苑大道1088号 (广东,深圳,南山区)

CN201910314628.1

2019-04-18

CN110105978B

2020-10-09

2020-10-09

授权

2020-10-09

授权发明

第一

本发明公开了一种两面性磁响应颗粒及其制备方法与应用，其中，所述方法包括步骤：通过选用一种拥有巨大的表面积且表面富含羟基基团的化学遮掩物预先与表面含有羟基的磁性纳米颗粒混合形成氢键交互，以此来屏蔽磁性纳米颗粒表面的部分羟基官能团的反应特性，之后再对未发生氢键交互的余下羟基基团进行疏水改性以实现磁性纳米颗粒两面具有截然不同的亲疏水特性的效果。本发明方法制得的两面性磁响应颗粒具有极强的界面活性，在水包油或者油包水体系中均可高效的运动到油水界面，使微乳液发生表面磁化，进而可通过外加磁场实现微乳液运动方式的改变，使之得以快速聚集和聚合，所述两面性磁响应颗粒还可重复循环利用。

The invention discloses double-side magnetically responsive particles, and a preparation method and applications thereof. The preparation method comprises following steps: a chemical covering compoundextremely high in surface area and rich in surface hydroxyl groups is adopted for mixing with magnetic nanometer particles containing surface hydroxyl groups for formation of hydrogen bond interaction, so that the reaction performance of a part of hydroxyl function groups on the surfaces of the magnetic nanometer particles is shielded; and then, the left hydroxyl groups without hydrogen bond interaction are subjected to hydrophobic modification so as to achieve the different hydrophilic and hydrophobic characteristics on the two sides of the magnetic nanometer particles. The obtained double-side magnetically responsive particles possess extremely high interface activity, are capable of moving to the oil water interfaces in oil-in-water or water-in-oil systems, so that microemulsion surface magnetization is realized, and in addition, microemulsion movement mode can be changed using an applied magnetic field, and rapid aggregation and polymerization are realized; and the double-side magnetically responsive particles can be recycled.

B01D17/04 ; C10G33/04

C10G33/04 ; B01D17/05

（+PATENT GRANT）[2020-10-09][CN]

1

1

王永文

深圳市君胜知识产权代理事务所(普通合伙)

PatSnap

徐政和,杨帆,谢汉杰,等. 一种两面性磁响应颗粒及其制备方法与应用[P]. 2020-10-09.