production of Nano Filaments for 3D Printing By using Natural Materials

Document Type : Original Article

Authors

1 Department of Printing, Publishing and Packaging - Faculty of Applied Arts - Helwan University

2 Professor at Printing and publication department - faculty of applied arts - Helwan university

3 Professor, Department of Printing, Publishing and Packaging - Faculty of Applied Arts - Helwan University

4 Deputy of research - Food Technology Research Institute ARC

Abstract

Polylactic acid (PLA) is a polymer commonly used in many applications, as it is produced from agricultural products such as starch or corn, and in order to try to expand its use through environmentally friendly materials, silica dioxide was prepared from natural origin and prepared The natural silica nanoparticles extracted from it, where the silica dioxide Nano powder was used as a natural support material for the polylactic acid material in order to give specific properties and to improve the existing ones.

Where superimposed strands of polylactic acid were produced with a percentage of natural silica dioxide powder in two ways, the first method was by using a small homemade extruder assembled in a primitive way, and the second method was by using an imported single-screw extruder with a complete production line, and by comparing the results of the two methods, we found that the extruder The imported single-screw is much better, because it gives good quality and the same thickness of the filament, and there are no bubbles in the material. As for the filament produced from the small homemade extruder, we get filament of different thicknesses in addition to containing some bubbles and bumps, which causes many problems during use This material is in 3D printing.

It is worth noting that paraffin oil was added in a small percentage to the aforementioned materials, as the paraffin oil works on dispersion and good distribution of nano-silica dioxide powder with polylactic acid. Natural silica has also succeeded in preparing some compounds with good properties that are resistant to stress conditions during use, in addition to being harmless to the environment and being able to be used in 3D printing to produce some environmentally friendly products that compete with many traditional materials that are harmful to the environment.

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