Reinforced photocurable materials for an Additive Manufacturing process based on Mask Image Projection

Bonada, Jordi; Xuriguera, E.; Muguruza, Aitor; Gonçalves, J.; Barcelona, P.; Pons, Josep M.; Minguella-Canela, Joaquim; Uceda, R.

doi:10.1016/j.promfg.2019.09.040

Cited by 2 publications

(1 citation statement)

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“…The use of nanometric particles as reinforcement for polymers improves the mechanical properties more efficiently than the use of larger particles, reaching higher solid loads without reaching a limit where the properties go down again [ 11 ]. On the contrary, the addition of reinforcement has a relevant influence on FPP material parameters, such as the material attenuation factor, as well as on viscosity or sedimentation [ 12 ]. This means that a compromise must be found between the size and content of particles and the effect on the mechanical behaviour in materials designed for additive manufacturing by FPP methods.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Compression Behaviour of Reinforced Photocurable Materials Used in Additive Manufacturing Processes Based on a Mask Image Projection System

et al. 2021

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Mask image projection based on stereolithography is an additive manufactured technology based on a Frontal Photopolymerization Process. Therefore, photocurable resins are used to build-up parts layer by layer. In this paper, alumina particles have been used as a reinforcement filler in order to improve the material stress-strain behaviour. In addition, the increment of the photoconversion ratio is a key factor to enhance the mechanical properties. Consequently, a numerical model has been used to determine the optimal printing parameters to enhance the elastic mechanical properties of printed parts according to the characteristics of photocurable materials. Stable and homogeneous reinforced materials have been obtained with an alumina content ranging from 5 to 15 wt%. Furthermore, the compression behaviour of reinforced materials has been analysed by means of experimental tests. The results show an enhancement of mechanical properties after the addition of reinforcement fillers, obtaining a maximum improvement in 10 wt% of solid load content. Finally, the influence of the sample’s orientation on the construction platform has been discussed.

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Section: Introductionmentioning

confidence: 99%