High concentration of few‐layer graphene and MoS ₂ nanosheets using carboxyl methyl cellulose as a high‐performance stabiliser

Abstract

This work report a facile, rapid and efficient approach to prepare high-concentration graphene and MoS 2 nanosheets through the liquid phase exfoliation of bulk materials with the method of high-pressure homogenisation assisted by carboxyl methyl cellulose. The few-layer graphene and MoS 2 nanosheets dispersions are prepared under 100 MPa for 10 min at high concentrations up to 1.45 and 0.28 mg/ml. The two nanodispersions could be applied to prepare the polyvinyl alcohol composite with well dispersibility and thermal stability.

The high thermal conductivity composite of PA 6/h-BN prepared by micron mixing in the solution

“…The well mixing of materials was the key point to solve the dispersibility of fillers. High pressure homogenization (HPH) as a new type of micro-nano material preparation technology had received more and more attention from researchers [14][15][16][17]. The HPH technology can be used to prepare the polymer micropowder, and then the micro-level uniform mixing with the filler can be carried out on the basis of this technology, thereby obtaining a composite material with good dispersion.…”