The device has a small volume and only requires a very small amount of materials, which shortens the research and development cycle, reduces costs and risks; The module is flexible, making it easy to study different polymers and foaming agents and prepare foam samples in multiple forms; The precise metering pump enables precise injection of foaming agent, enabling the preparation of high-quality microporous foam material samples; High precision sensors and data acquisition systems can precisely control key parameters and obtain reproducible and accurate experimental data; The equipment structure is clear, equipped with multiple safety protections, easy to operate, and convenient for teaching and training.