"Removing Carbon Black Pigment From ABS 3D Printing Filament"

In order to achieve a closed-loop recycling system for plastics, it is crucial to ensure that the recovered polymer still has the necessary thermal and mechanical properties for reuse. However, many additives and colorants used in plastics can negatively impact the properties of the recycled polymer. Therefore, removing these contaminants is necessary to increase the polymer’s recyclability and ensure that the recovered polymer still has economic value by restoring thermal and mechanical properties. One of the most popular, recyclable polymers is acrylonitrile butadiene styrene (ABS) is popular due to its high strength and durability. It is especially used in additive manufacturing and electronics. A widely used colorant in ABS is carbon black (CB) pigment, an insoluble inorganic pigment well dispersed throughout the polymer.

By removing contaminants, the quality and value of the recycled polymer can be restored. This is important because it makes the recycled polymer more economically viable and reduces the need for virgin plastic production. As a result, the recycled material is suitable for a wider range of applications and meets industry standards, making them more attractive to consumers and manufacturers. In addition, it helps to reduce the environmental impact of plastic waste by promoting a more sustainable and circular approach to plastic use and disposal.

Themes: Energy, Research & Technology, Waste

Sara Ordonselli

Graduate Studies, Faculty of Engineering & Computer Science