Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 138, Issue 1, Pages -Publisher
WILEY
DOI: 10.1002/app.49625
Keywords
crystallization; glass transition; mechanical properties; thermal properties
Categories
Funding
- Academie Hassan II des Sciences et Techniques
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Fused filament fabrication is currently widely used for high performance materials manufacturing, with polyphenylene sulfide chosen as the base material in this study. Optimizing parameters such as nozzle temperature, printing speed, and layer thickness significantly improved the output responses. Additionally, annealing the printed PPS parts at 200 degrees Celsius for 1 hour enhanced their thermal, structural, and tensile properties.
Today fused filament fabrication is one of the most widely used additive manufacturing techniques to manufacture high performance materials. This method entails a complexity associated with the selection of their appropriate manufacturing parameters. Due to the potential to replace poly-ether-ether-ketone in many engineering components, polyphenylene sulfide (PPS) was selected in this study as a base material for 3D printing. Using central composite design and response surface methodology (RSM), nozzle temperature (T), printing speed (S), and layer thickness (L) were systematically studied to optimize the output responses namely Young's modulus, tensile strength, and degree of crystallinity. The results showed that the layer thickness was the most influential printing parameter on Young's modulus and degree of crystallinity. According to RSM, the optimum factor levels were achieved at 338 degrees C nozzle temperature, 30 mm/s printing speed, and 0.17 mm layer thickness. The optimized post printed PPS parts were then annealed at various temperatures to erase thermal residual stress generated during the printing process and to improve the degree of crystallinity of printed PPS's parts. Results showed that annealing parts at 200 degrees C for 1 hr improved significantly the thermal, structural, and tensile properties of printed PPS's parts.
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