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Processing and Characterization of Supercritical CO2 Batch Foamed Poly(lactic acid) Based Scaffolds for Tissue Engineering Application

机译:基于组织工程应用的超临界CO2批量的超临界CO2批量泡沫泡沫聚(乳酸)的处理与表征

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摘要

Both poly (lactic acid)(PLA) and poly (ethylene glycol)(PEG) are biodegradable polymers,and blending PLA with PEG is expected to toughen PLA matrix while maintain its biodegradability.In this study,PLA/PEG blends in different ratios were prepared through triplescrew extruder,and the foaming behavior was investigated using supercritical carbon dioxide as physical blowing agent.The mechanical,thermal,rheological properties and crystallization behavior were also studied.
机译:聚(乳酸)(PLA)和聚(乙二醇)和聚(乙二醇)(PEG)是可生物降解的聚合物,并预期将PLA与PEG的共混PLA增强PLA基质,同时保持其生物降解性。本研究,不同比例的PLA / PEG共混物通过三螺旋挤出机制备,并使用超临界二氧化碳作为物理发泡剂研究发泡行为。还研究了机械,热,流变性和结晶行为。

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