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Acrylonitrile Butadiene Styrene and Polypropylene Blend With Enhanced Thermal and Mechanical Properties for Fused Filament Fabrication

Muhammad Harris, Johan Potgieter, Sudip Ray, Richard Archer, Khalid Mahmood Arif

Materials (Basel). 2019 Dec 11;12(24):4167.

PMID: 31835874

Abstract:

Acrylonitrile butadiene styrene (ABS) is the oldest fused filament fabrication (FFF) material that shows low stability to thermal aging due to hydrogen abstraction of the butadiene monomer. A novel blend of ABS, polypropylene (PP), and polyethylene graft maleic anhydride (PE-g-MAH) is presented for FFF. ANOVA was used to analyze the effects of three variables (bed temperature, printing temperature, and aging interval) on tensile properties of the specimens made on a custom-built pellet printer. The compression and flexure properties were also investigated for the highest thermal combinations. The blend showed high thermal stability with enhanced strength despite three days of aging, as well as high bed and printing temperatures. Fourier-transform infrared spectroscopy (FTIR) provided significant chemical interactions. Differential scanning calorimetry (DSC) confirmed the thermal stability with enhanced enthalpy of glass transition and melting. Thermogravimetric analysis (TGA) also revealed high temperatures for onset and 50% mass degradation. Signs of chemical grafting and physical interlocking in scanning electron microscopy (SEM) also explained the thermo-mechanical stability of the blend.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP9006262-B Polyethylene-graft-maleic anhydride Polyethylene-graft-maleic anhydride 9006-26-2 Price
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