1results about How to "High foaming rate" patented technology

This invention discloses a photocurable 3D printing elastic resin and a foaming method. The photocurable 3D printing elastic resin incorporates surface-modified high-temperature thermally foamed microspheres. The double bond formation and roughening of these microspheres improve the crosslinking and mechanical interlocking with the resin, thereby enhancing tensile strength. After printing, the microspheres undergo ultrasonic and vacuum pretreatment to accelerate the vaporization of liquid alkanes within the thermally foamed microspheres. Heating then allows the alkanes to escape, producing a foaming effect. This method yields elastic printed parts with high foaming rate and good uniformity, meeting the application requirements of lightweight, highly elastic, and functionally graded materials.