Preparation method of stripping, functional modification and intelligent composite gel of disulfide

Abstract

The invention belongs to the technical field of functional materials and particularly relates to a preparation method of stripping, functional modification and dual response intelligent composite gel of transition metal disulfide. A temperature-sensitive functional poly ionic liquid aqueous solution is used for ultrasonic stripping of transition metal disulfide powder, so that a nano layer laminated aqueous solution of the transition metal disulfide modified by polymer can be obtained directly; then a cross-linking agent is added so that intelligent gel with temperature and near-infrared dual response can be further prepared, and the intelligent gel can be taken as a shape memory material and an optothermal response intelligent gel material. The method is easy and convenient to operate, the production cost is low, batch production is easy, the prepared intelligent composite gel has multiple stimuli response, and the method can be applied widely and has large scale preparation potential and wide commercial application prospect.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a method for stripping transition metal dichalcogenides, functional modification and double response intelligent composite gel. Background technique [0002] In recent years, with the upsurge of research on two-dimensional layered nanomaterials such as graphene, other new two-dimensional layered compounds with graphene-like structures have also attracted researchers in many fields such as physics, chemistry, materials, electronics, and biomedicine. broad interests. In particular, nanosheets of transition metal dichalcogenides have received more and more attention due to their special properties in thermal, electrical, optical, mechanical and other aspects and their potential applications in optoelectronic devices and biomedical fields. In addition, In order to further expand its application prospects and take into account practical production application...

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Problems solved by technology

At present, there are few reports on the method of stripping transition metal dichalcogenides in aqueous phase. In 2011, "Advanced Materials" (Adv. Mater. The method of two-dimensional sheet materials has subsequently caused some related research. In 2013, "American Chemical Society Applied Materials and Their Interface Properties" (ACS Appl. Mater. Interfaces 2013, 5, 12751? Aqueous solution of alkane-polypropylene oxide-polyethylene oxide triblock copolymer) surfactant to strip molybdenum disulfide to prepare its nanosheets, 2015 "Journal of the American Chemical Society" (J.Am.Chem .Soc.2015,137,6152?6155) reported the method of stripping molybdenum disulfide with bovine serum albumin aqueous solution, and in 2015 "Nanoscale" (Nanoscale, 2015,7, 9919–9926) reported the stripping of molybdenum disulfide with lignin aqueous solution The method of molybdenum sulfide, however, most of the stripping aids used in the aqueous phase stripping of molybdenum disulfide are amphiphilic polymers or small molecule surfactants, which have almost no functionality, so it is difficult to further prepare functionalized transition metals. Dichalcogen compound composite materials, and currently in the field of liquid phase exfoliation research, people are mainly concerned about its exfoliation problem, and there are very few reports on further functional modification.

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