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Effects Of Fiber Orientation On The Coefficient Of Thermal Expansion Of Fiber-Filled Polymer Systems In Large Format Polymer Extrusion-Based Additive Manufacturing, José Luis Colón Quintana, Lucinda Slattery, Jon Pinkham, Joanna Keaton, Roberto A. Lopez-Anido, Keith Sharp
Effects Of Fiber Orientation On The Coefficient Of Thermal Expansion Of Fiber-Filled Polymer Systems In Large Format Polymer Extrusion-Based Additive Manufacturing, José Luis Colón Quintana, Lucinda Slattery, Jon Pinkham, Joanna Keaton, Roberto A. Lopez-Anido, Keith Sharp
Civil Engineering Faculty Scholarship
Large format polymer extrusion-based additive manufacturing has been studied recently due to its capacity for high throughput, customizable bead size and geometry, and ability to manufacture large parts. Samples from three fiber-filled amorphous thermoplastic materials 3D printed using a Masterprint 3X machine from Ingersoll Machine Tools were studied, along with their neat counterparts. Characterization techniques included thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and thermo-mechanical analysis (TMA). TGA results showed that the fillers decreased the degradation temperature for most of the materials investigated, with a 30°C decrease for polycarbonate (PC) and a 12°C decrease for polyethylene terephthalate glycol (PETG). For …