Preparation Method and Device of Microcellular Sheet Based on Batch Foaming

Abstract:

This paper mainly introduces a new method of preparation of microcellular material, this method can be divided into three stages: kettle with saturation pressure, heating foaming, flattening and calendaring. During the process of supercritical CO₂ saturated, different materials need reasonable control parameters such as saturation pressure, saturation temperature and saturated time, and the values of saturation temperature and saturation pressure will directly affect the permeability of supercritical CO₂. During the process of heating foaming, it needs to strictly control the parameters such as foaming temperature and foaming time, because the bubble density and bubble size are closely related to the two parameters. During flattening and calendaring process, it is important to control temperature and speed of roller reasonably to avoid the phenomena of collapse in bubbles. There are no harmful substances emissions using this method to produce ultrathin microcellular material, which can also protect the environment.

• Periodical: Advanced Materials Research (Volume 1095)
• Pages: 495-500
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1095.495
• Online since: March 2015
• Authors: Xin Xiao*, Xue Tao He, Yu Mei Ding, Liu Qin, Wei Min Yang
• Keywords: Batch Foaming, Microcellular Sheet, Processing Parameter, Supercritical CO₂

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