Preparation of biodegradable poly(butylene succinate)/halloysite nanotube nanocomposite foams using supercritical CO 2 as blowing agent

摘要: Biodegradable poly(butylene succinate) (PBS) was melt compounded with halloysite nanotube (HNT) to prepare PBS/HNT nanocomposites, and both pure PBS nanocomposites were foamed successfully using supercritical carbon dioxide as a physical blowing agent. The cell morphologiesshowed that the size decreased, density volume expansion ratio increased addition of HNT. Within HNT content used in this work (1, 3, 5, 7 wt.%), 5 wt.% found be one lead smallest highest ratio. In content, saturation temperature pressure significantly influence morphology. Higher led smaller higher Interestingly, close-celled interconnect open-celled morphology transition occurred for at 120 °C. formation mainly attributed stress induced by solidification process. With increase pressure, enthalpy fusion samples increased.