“超重力+”法可控制备透明纳米分散体及应用

doi:10.16085/j.issn.1000-6613.2020-0882

摘要/Abstract

摘要：

纳米颗粒的分散是纳米材料应用的核心难题之一。新一代纳米材料——单分散纳米颗粒材料分散在溶剂中可形成具有良好透明性或明显丁达尔效应的纳米分散体，较传统纳米粉体材料更易于分散，展现出更优异的纳米效应及应用性能，是国际前沿研究方向。其中，低成本规模化可控制备高固含量、高稳定、高透明的纳米分散体仍面临巨大挑战。针对此问题，本文作者课题组面向终端工程应用需求，提出基于颗粒表面主动设计和修饰调控表面特性，利用超重力强化分子混合结晶过程的方法，有机耦合表面改性-分离过程，率先提出了超重力反应结晶-改性分离耦合的新方法，即“超重力+”法制备透明纳米分散体。本文总结了近年来本文作者课题组在透明纳米分散体“超重力+”法可控制备与应用方面的成果，并对下一步研究方向进行了展望。

关键词: “超重力+”法, 透明纳米分散体, 透明纳米复合材料, 拟均相纳米催化剂

Abstract:

The dispersibility of nanoparticles is a key problem for their applications. A new generation of nanomaterials-monodispersed nanoparticle materials as so-called nanodispersions can be dispersed in solvents with good transparency or obvious Tindal effect. Compared with traditional nanopowders, the nanodispersions show better dispersibility in applications with enhanced nano effects. Among the relevant researches, the preparation of nanodispersions with a high solid content, high stability and high transparency at low cost and large scale is still a great challenge. In order to solve this problem, based on high-gravity reactive crystallization process with intensified molecular mixing, as well as surface design and property control of particles, our group firstly proposed a new method of high-gravity reactive crystallization coupled with modification separation ("high gravity plus" method) by properly introducing surface modification-separation process for the requirements of terminal engineering applications to prepare transparent nanodispersions. In this article, the researches on the controllable preparation of transparent nanodispersions by “high gravity plus” method and their applications in our group in recent years are summarized, and the future research is prospected.

Key words: “high gravity plus” method, transparent nanodispersions, transparent nanocomposites, pseudohomogeneous nanocatalysts

中图分类号:

TQ03-39

孙倩, 曾晓飞, 王丹, 王洁欣, 陈建峰. “超重力+”法可控制备透明纳米分散体及应用[J]. 化工进展, 2020, 39(12): 4779-4797.

Qian SUN, Xiaofei ZENG, Dan WANG, Jiexin WANG, Jianfeng CHEN. Controllable preparation and applications of transparent nanodispersions by “high gravity plus” method[J]. Chemical Industry and Engineering Progress, 2020, 39(12): 4779-4797.

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