Cellular Structure Optimization in Microwave-Assisted Foaming of Acrylated Epoxidized Soybean Oil.

ABSTRACT: This study demonstrates the effective and rapid foaming of biobased acrylated epoxidized soybean oil (AESO) resins using microwave technology. Utilizing a multimode household microwave oven, AESO could be heated up to 200 °C, enabling the simultaneous decomposition of a chemical blowing agent and cross-linking reaction. Rheometric analysis under nonisothermal conditions revealed that the peroxide-initiated curing of the AESO proceeded rapidly in the 100-120 °C range, with a 6 order of magnitude increase in complex viscosity. Further isothermal rheometric tests at 80 °C successfully demonstrated the ability to precure AESO resin to various degrees of polymerization, both before and beyond its gel point. Foams produced by 2 min of microwave irradiation at 800 W exhibited significantly differ

SUBMITTER: Vignali A 

PROVIDER: S-EPMC12658802 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature