▎ 摘　　要

NOVELTY - Preparation of flexible tensile silicone rubber-based strain sensor involves: (1) preparing a graphene oxide (GO) suspension; (2) dripping the suspension into hydroxy silicone oil emulsion, and mixing to obtain mixed solution (A); (3) stopping heating when solution (A) is heated to 2/3 of the volume of solution (A), and cooling to obtain mixed solution (B); (4) dripping sodium ascorbate aqueous solution into solution (B), and stirring to obtain mixed solution (C); (5) dripping curing agent into solution (C), and stirring to obtain a mixed solution (D); (6) drying solution (D) to obtain a cured GO/polydimethylsiloxane (PDMS) composite material; (7) immersing the material in deionized water, reducing, and drying to obtain reduced graphene oxide (rGO)/PDMS composite material; (8) preparing the obtained material into strips, and fixing copper foils on both sides of strips with silver paste, and drying; and (9) encapsulating both sides of strips with polyimide tape. USE - The method is useful for preparing flexible tensile silicone rubber-based strain sensor (claimed). ADVANTAGE - The method constructs rGO/PDMS flexible tensile silicone rubber-based strain sensor with isolation network by initially using emulsion assembly technology. DETAILED DESCRIPTION - Preparation of flexible tensile silicone rubber-based strain sensor involves: (1) dispersing graphene oxide (GO) in deionized water to obtain a GO suspension; (2) slowly dripping the GO suspension into hydroxy silicone oil emulsion, uniformly mixing to obtain mixed solution (A), and controlling the pH at 7-8 during mixing; (3) stopping heating when solution (A) is heated to 2/3 of the volume of solution (A) in magnetic stirring process, and cooling to room temperature to obtain mixed solution (B); (4) dissolving sodium ascorbate in deionized water to obtain a sodium ascorbate aqueous solution, slowly dripping into solution (B), and magnetically stirring to obtain mixed solution (C); (5) slowly dripping curing agent into solution (C), and magnetically stirring to obtain a mixed solution (D); (6) transferring solution (D) to a clean culture dish, placing at room temperature, and drying in an oven to obtain a cured GO/polydimethylsiloxane (PDMS) composite material; (7) immersing the GO/PDMS composite material in deionized water, reducing in a water bath, and then drying to obtain reduced graphene oxide (rGO)/PDMS composite material; (8) preparing the rGO/PDMS composite material into rGO/PDMS strips, and fixing copper foils on both sides of the strips with conductive silver paste and drying to solidify the silver paste; and (9) encapsulating both sides of the strips with polyimide tape.