Manufacturing polymeric foams with high cell densities with injection molding is of great interest to industry, primarily because of the flexibility and cost- effectiveness of the technology. Yet, there is still limited research work on foam injection molding of polylactide (PLA), an emerging bio-derived bio-degradable thermoplastic. The manufacture of PLA foam of high cell density and void fraction with injection molding remains challenging due the low melt-strength property of the resin. In this work, we examined processing of PLA foams with in-situ fibrillated polytetrafluoroethylene (PTFE) through injection molding. The prepared PLA/PTFE foams possessed void fractions of 50% and above.
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