▎ 摘　　要

NOVELTY - Preparing flexible temperature-stress sensor comprises (i) preparing flexible substrate by spin coating using polydimethylsiloxane solution, (ii) mixing carbon nanotube solution and the MXene nanosheet solution, filtering mixed solution and drying filtrate in a vacuum oven to prepare a MXene-carbon nanotubes stress composite film, (ii) mixing conductivity enhancer with the poly(3,4-ethylenedioxythiophene) polystyrene sulfonate aqueous solution to obtain mixed solution, stirring mixed solution and mixing, ultrasonically treating, the solution and placing the filtrate in a vacuum oven, and drying to obtain the PEDOT:PSS-CNTs-graphene thermosensitive composite film, (iv) preparing silicon carbide film as a dielectric layer by chemical vapor deposition, (v) preparing an electrode layer with an equivalent neural conductive network structure, and (vi) performing plasma treatment on the stress composite film layer, dielectric layer, heat-sensitive composite film layer, and electrode layer. USE - The method is useful for preparing flexible temperature-stress sensor. ADVANTAGE - The method avoids signal crosstalk, and improves the accuracy of measurement. DETAILED DESCRIPTION - Preparing flexible temperature-stress sensor comprises (i) preparing flexible substrate by spin coating using polydimethylsiloxane (PDMS) solution, (ii) mixing the carbon nanotube solution and the MXene nanosheet solution at a volume ratio of 1:1, filtering the mixed solution and drying the filtrate in a vacuum oven to prepare a MXene-carbon nanotubes (CNTs) stress composite film, (ii) mixing the conductivity enhancer with the poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) aqueous solution at a volume ratio of 3-4:1 to obtain a mixed solution, and adding the carbon nanotube-graphene carbon material mixture to the mixed solution at a mass ratio of 1:1, and adding 10 times the sodium dodecylbenzenesulfonate powder of carbon material mixture weight, stirring mixed solution and mixing, ultrasonically treating, filtering the solution and placing the filtrate in a vacuum oven, and drying to obtain the PEDOT:PSS-CNTs-graphene thermosensitive composite film, (iv) preparing silicon carbide (SiC) film as a dielectric layer by chemical vapor deposition, (v) preparing an electrode layer with an equivalent neural conductive network structure, and (vi) performing plasma treatment on the stress composite film layer, dielectric layer, heat-sensitive composite film layer, and electrode layer. An INDEPENDENT CLAIM is also included for a flexible temperature-stress sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a preparation process flow chart of the flexible temperature-stress sensor (Drawing includes non-English language text).