Study Progess of Microcellular Plastics Foamed by Supercritical CO2

doi:10.19491/j.issn.1001-9278.2010.12.003

Abstract

Abstract: The characteristics and function of supercritical CO2 are introduced in this article. The four stages of supercritical CO2 foaming, gas dissolving, bubble nucleation, bubble growth, and cell shaping were introduced. In addition, three frequently-used processing methods, batching, extrusion, and injecting moldings of microcellular plastics are summarized. The effects of temperature, pressure, time, and external force field on cell structure are particularly discussed. The development trend of microcellular plastics in the future is also forecasted.

Key words: supercritical carbon dioxide, microcellular plastics, foaming, study progess

CLC Number:

TQ328.9

Bo CHENG Shuhua QI Bo WU Peng CAO. Study Progess of Microcellular Plastics Foamed by Supercritical CO₂[J]. China Plastics, 2010, 24(12): 14-20 .

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Study Progess of Microcellular Plastics Foamed by Supercritical CO₂

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