Effect of Fused Filament Fabrication Parameters and Tetrabromobisphenol-A/Microcrystalline Cellulose Additives on the Dynamic Mechanical Behavior of Polycarbonate/Acrylonitrile-Butadiene-Styrene Blends for Precision Structures

Additive manufacturing is well known for fabricating polymer composites. However, 3D printed product quality, reliability and precision are still challenging. Polycarbonate (PC) and acrylonitrile-butadiene-styrene composite is commonly used in automobile applications. However, low mechanical properties are limiting its applications. Therefore, the present study focuses on developing PC/ABS composite by loading tetrabromobisphenol-A and microcrystalline cellulose additives. Later, the developed blend is 3D printed using fused filament fabrication. Further, three significant FFF process parameters are proposed to enhance precision and reliability. The present study investigates the effect of FFF process parameters on the dynamic mechanical properties of additives-loaded PC/ABS composite material. The effect of additives on dynamic mechanical properties of 3D printed PC/ABS composite was investigated. Results showed that storage modulus was increased by 68% and loss modulus was decreased by 75% with varying TBBA and MCC content. The samples with 40 Wt.% TBBA, MCC in PC/ABS polymer composite significantly improved dynamic mechanical properties. Thus, FFF is a robust route to develop additives-loaded PC/ABS composite from the results.