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Author Zou, Wei ♦ Chen, Rongyuan ♦ Zhang, Haichen ♦ Qu, Jinping
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CALORIMETRY ♦ CARBONIC ACID ESTERS ♦ CRYSTALLIZATION ♦ ELONGATION ♦ GLASS ♦ LACTIC ACID ♦ MELTING ♦ MELTING POINTS ♦ PHASE STABILITY ♦ POLYMERS ♦ POLYPROPYLENE ♦ PROPYLENE ♦ SCANNING ELECTRON MICROSCOPY ♦ THERMAL GRAVIMETRIC ANALYSIS
Abstract Poly (lactic acid) (PLA)/Poly (propylene carbonate) (PPC) blends were prepared by vane extruder which is a type of novel polymer processing extruder based on elongation force field. Scanning electron microscope (SEM), differential scanning calorimetry (DSC) and thermogravimetric (TG) were used respectively to analyze the compatibility, the melting behavior and thermal stability properties of PLA/PPC blends affected by the different content of PPC. The results showed that with the increase of the PPC content, the glass transition temperature of PLA was reduced, and the glass transition temperature of PPC was increased, which indicated that PLA and PPC had partial compatibility. The cold crystallization temperature of PLA increased with the increase of the PPC content, which showed that PPC hindered the cold crystallization process of PLA. The addition of PPC had little impact on the melting process of PLA, and the melting temperature of PLA was almost kept the same value. Thermogravimetric analysis showed that the thermal stability of PPC was worse than that of PLA, the addition of PPC reduced the thermal stability of PLA.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-03-09
Publisher Place United States
Volume Number 1713
Issue Number 1


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