Abstract:

In view of difficult dispersion and easy agglomeration of micro-nano inorganic particles in functional hybrid fibers, the traditional characterization methods of inorganic particles dispersion were summarized and new techniques such as terahertz time-domain spectroscopy, ultrasonic wave and X-ray ultramicroscopy were also introduced. The investigation suggests that none of the methods can fully reflect dispersion state of inorganic particles in blending system. In the paper, the multi-level particle size evaluation system was proposed，which is mainly composed by 3M method including OM, SEM and TEM, supplemented by indirect methods. Besides, an attempt of incorporation terahertz time-domain spectroscopy, ultrasonic wave and X-ray ultramicroscopy into the evaluation system was made. To carry on a further reasearch on characterization methods of inorganic particles dispersion, the theories of dispersion characterization were reviewed.

Key words: micro-nano, inorganic particle, dispersion, characterization method, relevant theory