Influence of exposure time on mechanical properties and photocuring conversion ratios for photosensitive materials used in Additive Manufacturing

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/108631

Title:	Influence of exposure time on mechanical properties and photocuring conversion ratios for photosensitive materials used in Additive Manufacturing
Author:	Bonada Bo, Jordi; Muguruza Blanco, Asier; Fernández-Francos, Xavier; Ramis Juan, Xavier
Other authors:	Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria; Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. REMM - Recerca en Estructures i Mecànica de Materials; Universitat Politècnica de Catalunya. POLTEPO - Polímers Termoestables Epoxídics
Abstract:	The influence of UV post-curing process on mechanical propertie s as well as photocuring conversion ratios is presented. An analytical model to determ inate the conversion ratio for frontal polymerization is used to define 3D printing parameters in ord er to obtain a conversion profile as homogenous as possible. The mechanical properties of 3D printed coupons with and without UV post-curing process were obtained through experimental tensile and bending tests. Furthermore, the experimental conversion ratios of printed samples were obtained by means of FTIR spect rometry analysis. It was observed that conversion ratios and some mechanical properties increase because of UV post-curing trea tment, enabling the chance to optimize the whole manufacturing process in function of the 3D printed part requirements
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria mecànica -Materials--Technological innovations -Three-dimensional printing. -Additive Manufacturing -Material behaviour -Mechanical properties -Photopolymerization -Materials -- Innovacions tecnològiques -Impressió 3D -Fabricació -- Automatització
Rights:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Submitted version Article
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