Study of the thermal properties of filaments for 3D printing

conference paper

English

Various materials are used for 3D printing, most commonly Acrylonitrile butadiene styrene (ABS), Polylactic acid (PLA), Polyethylene (PET) and Polypropylene (PP). These materials differ mainly in their melting point, which significantly influences the properties of the final products. Filaments are melted in the print head during the printing process. The temperature range is from 150 °C to 250 °C depending on the technology used. The optimum temperature for the cooling substrate on which printing is carried out is chosen so as to ensure uniform cooling and deformation. It generally varies between (40 – 100) °C. From the above it is clear that both temperatures can significantly affect the properties of the printed 3D object. It is therefore important to determine the thermal parameters (thermal conductivity, specific heat and thermal diffusivity) of the materials used across the entire range of temperatures. For evaluating the properties of different types of PLA materials, the step transient method was used, which allows determination of all required parameters using a fractal heat transfer model.

erythritol, thermal diffusivity, thermal conductivity, specific heat, transient method, ramp-wise and step-wise method

TRHLÍKOVÁ, L.; ZMEŠKAL, O.; PŠENČÍK, P.; FLORIÁN, P.

12. 10. 2016

American Institute of Physics

USA

978-0-7354-1410-5

THERMOPHYSICS 2016: 21ST INTERNATIONAL MEETING

0094-243X

AIP conference proceedings

1752

1

United States of America

040027-1

040027-6

6

http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4955258