Figure 1 below shows the common material classes available for 3D printing. As a result, thermoplastic materials can be repeatedly softened from a solid to a viscous fluid on application of heat.Ĭurrently most of the thermoplastic material types available for injection moulding are also available for 3D printing, with more materials being adapted for FDM AM each day. The mechanical and chemical properties of a polymer are affected not only by the chemical make-up of the repeat unit but also the molecular arrangement of the repeat units in the polymer chains, and, the interactions between these polymer chains. In thermoplastic materials, the polymer chains are held together with weak intermolecular forces. Polymers are made of large molecules with a repeating chemical structure, otherwise known as a monomer. This article is an opinion piece from our Magigoo wizard where he discusses the use of common 3D printing materials, their strengths and weaknesses! Thermoplastic materials – an introduction
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