Lightweight polyethylene terephthalate bead foams with good interfacial adhesion and thermal insulation performance fabricated by supercritical carbon dioxide secondary foaming strategy
Senlin Yang,
Wenjie Ma,
Xiangfeng Ren
et al.
Abstract:This paper reported the novel supercritical carbon dioxide (scCO2) secondary foaming and molding strategy to prepare the thermal‐insulation polyethylene terephthalate (PET) bead foam part with good interfacial adhesion and high expansion ratio. The incorporation of porous structure could effectively enhance the blowing agent solubility and fabricate the system viscosity difference, which contributed to the expansion and further welding of the expanded PET beads. Under the optimum foaming conditions, PET bead f… Show more
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