Research progress on preparation of foamed polyvinyl chloride plastics by supercritical CO2 fluid
This article mainly elaborates on the principle and foaming process of preparing foamed polyvinyl chloride plastics by supercritical CO2 fluid.According to different production processes,the supercritical CO2 foaming process can be divided into batch molding,injection molding,and extrusion molding,etc.At the same time,the factors affecting the cell structure of foamed polyvinyl chloride materials are discussed,and the development prospects of preparing foamed materials by supercritical CO2 fluid are prospected.
supercritical CO2 fluidfoaming materialspolyvinyl chloridefoaming process
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