Preparation and application of starch-based self-powered flexible sensor

The invention relates to the technical field of sensor manufacturing, and discloses a preparation method of a starch-based self-powered flexible sensor, and the preparation method comprises the following steps: S1, preparing a calcium chloride solution with a certain concentration as a solution 1; s2, metal salt is added into the solution 1 to serve as a solution 2; s3, respectively mixing a certain amount of high amylose with the solution 1 and the solution 2, and uniformly stirring to obtain a starch emulsion 1 and a starch emulsion 2; s4, respectively heating and gelatinizing the starch emulsion in the S1 to obtain gelatinized liquid 1 and gelatinized liquid 2; s5, respectively adding glycerol and metal powder into the gelatinization liquid 1 and the gelatinization liquid 2, uniformly mixing, pouring into a mold, and cooling; s6, the materials in the step S5 are taken out respectively and attached to one another after being recovered to the room temperature, the production process of the product is environ