Abstract：Here, foamed starch-based humidity control (FSHC) material was successfully made with the microwave foaming method. Then, a thermal field emission scanning electronic microscope and a microcomputer controlled electronic universal testing machine were used to detect apparent morphology and mechanical properties of FSHC material, effects of starch content, acrylic acid sodium-acrylate mixed solution and acrylamide mass ratio, acrylic acid neutralization degree and initial water content on properties of FSHC material were investigated. Results showed that the platform stress, cushioning coefficient and energy absorption unit volume of FSHC material reach 0.363 MPa, 3.618 and 0.326 J/cm, respectively when starch content is 10.5%, mass ratio of acrylic acid sodium-acrylate mixed solution to acrylamide is 4.5∶1, neutralization degree of acrylic acid is 80% and initial water content is 10 g; the moisture absorption / desorption rate of FSHC material decreases with increase in starch content, and increases with increase in mass ratio of acrylic acid sodium-acrylate mixed solution to acrylamide, neutralization degree of acrylic acid and initial water content.
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