Influence of Process Parameters on the Mechanical Properties of Carbon Fibre Reinforced PETG

The research analyses the impact of different compositions of carbon fibre on mechanical and thermal attributes of Fused Filament Fabricated (FFF) Polyethylene Terephthalate Glycol (PETG) composites. Three different types of carbon fibre composite (۱۰%, ۲۰%, and ۳۰% content) were manufactured for analysis against pure PETG material. The tests analysed the mechanical performance through compressive strength analysis, along with flexural strength measurements and measurements of hardness. The characterizing tests included Vicat Softening Temperature alongside Heat Deflection Temperature assessment. The research used ASTM standard testing methods to validate experimental measurements through finite element simulations using ANSYS Workbench ACP®. Integration of carbon fibre components improved the total mechanical behaviour of the PETG material. PETG without fibre demonstrated ۵۳ MPa compressive strength, while ۳۰% CF-PETG achieved ۵۸ MPa compressive strength. The flexural strength measurements mirrored those changes, starting from ۵۴ MPa and reaching ۸۰ MPa across the same compositions. The Shore Hardness measurement (D) experienced an elevation as the carbon fibre concentration in materials grew from ۷۱ to ۷۷. Vicat Softening Temperature and Heat Deflection Temperature values improved alongside carbon fibre content increases. The experimental results matched closely with simulation outputs from the analysis, thus validating its accuracy. Research data shows that PETG materials improve their mechanical and thermal qualities when carbon fibre is incorporated, thereby creating promising prospects for specific applications needing advanced performance levels.

کلیدواژه ها:

Carbon fibre ، Polyethylene Terephthalate Glycol (PETG) ، Mechanical properties ، Thermal properties ، Fused filament fabrication (FFF)