Ariana's Favorite Things List Edit. Favorite Color(s): Periwinkle blue, marshmallow white, sea foam green, and coral pink. She likes pastel colors. Favorite Food(s): Strawberries and Sushi. Favorite Music: Imogen Heap and Celine Dion. Favorite TV Show: Gossip Girl.
PLA is harder than ABS, melts at a lower temperature (around  180Â°C to 220Â°C), and has a glass transition temperature between 60-65 Â°C, so is potentially a very useful material. It does exhibit higher friction than ABS however which can make it difficult to extrude and more susceptible to extruder jams.
Effect of Heat. The melting point of polypropylene is about 165Â°C and while it does not have a true softening point temperature, the maximum processing temperature of the fibre is approximately 140Â°C. Prolonged exposure to elevated temperatures will cause degradation of the fibre, but anti-oxidants are incorporated in polypropylene fibres to protect them during processing and at normal service temperatures.