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Progress in scientific research using waste plastics as 3D printing consumables | TRU

Plastic products are used widely in many industries, due to their benefits of being lightweight, low-cost, strong, corrosion resistant, easy processing, high-insulation, and beautiful. Statisticians estimate that the global production of plastics reached 18,1842 millions tons in 2019. Plastics are prone to breakage, ageing, and are hard to degrade. As a result, they cause environmental pollution that is more harmful. Treatment and recycling of plastic waste has therefore become a major global issue.<br /><br />

3D printing has become a popular high-tech tool in the last few years. This technology requires lots of consumables. Polymers and metals are the two most common 3D-printing consumables. Metal consumables do not require as much complexity as polymers. They are primarily metal powders. Polymer consumables come in thermoplastics or thermosetting plastics. These can be used for printing anything from Lego blocks to shopping bags. The recycling of waste plastics and 3D printing polymer consumables not only provides a novel recycling method for waste plastics but can also provide high economic value. The project team studied the use waste plastics in 3D printing consumables. They designed their own printers to print the waste plastics and produce well-formed components. This allowed waste plastics to be recycled. This project’s printing accuracy can reach as high as 0.2mm. Its filament formation is uniform and its structure is dense. It is comparable to what is achieved with existing market consumables.<br /><br />
Wuhan University of Technology School of Chemistry and Chemical Engineering and Life Sciences School of Automation School of Navigation School of Materials Science and Management School of Materials Science and Management jointly explored a method that directly eliminates the intermediate step of raw material extrusion and can be used as printing inks to 3D print. The data about the melting rate of the material, its tensile strength, its impact strength, and other parameters are all in line with 3D printed jewellery market requirements.<br /><br />
It is unnecessary to use other raw chemical materials in the preparation phase, which reduces the price of 3D printed raw materials. This eliminates the production of harmful and toxic chemicals, which can cause secondary pollution. The new product, if released on the market will make a significant contribution to environmental protection.<br />
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