Effect of phase compatibility on the foaming behavior of LDPE/HDPE and LDPE/PP blends with subcritical CO2 as the blowing agent
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文摘
Extrusion foaming of LDPE/HDPE and LDPE/PP blends was conducted using near supercritical CO2. Compatible LDPE/HDPE blend generated uniform cell morphology. LDPE/PP blend with sea-island micro-structure generated uniform cell morphology. Poor foaming of LDPE/PP with co-continuous structure was attributed to higher CO2 diffusion.

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