Kimika dinamikoa 3D argi ultramore bidezko fotopolimerizazioan aplikatua

Abstract

Covalent adaptable networks are considered as a new family of polymers that combine advantages of thermoplastic and thermoset materials. Basically, they are crosslinked structures, but as they have dynamic bonds within its structure, these materials are able to be reprocessed and self-heal. In this work, an adaptive covalent network, based on bulky urea bonding has been synthetized, using the Vat photopolymerization printer as a reactor.

Among the techniques included in the concept of Additive Manufacturing, one of the most important techniques is VAT photopolymerization. In this 3D printing technique, the objects are printed layer by layer, converting a liquid resin into a solid material by means of ultraviolet light. The resins that are used in this technique must contain double bonds within their structure, that is why, in the synthesis of these materials, apart of adding dynamic bonds, double bonds has also been added in order to 3D print them. After the printing of the materials their dynamism has been confirmed, as well as their capacity for self-healing and reprocessing.