4D printing of magneto-responsive polymer structures by masked stereolithography for miniaturised actuators

IF 10.2 1区工程技术 Q1 ENGINEERING, MANUFACTURING

Virtual and Physical Prototyping Pub Date : 2023-09-07 DOI:10.1080/17452759.2023.2251017

Jan Lino Kricke, Inna Yusnila Khairani, B. Beele, Natalia Shkodich, Michael Farle, Adam Slabon, C. Doñate-Buendía, Bilal Gökce

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Abstract

ABSTRACT Masked stereolithography printing can be used to produce functionalised magneto-responsive polymer structures. Magnetic filler additivation of the photopolymer enables the production of powerful and fast soft robotics. However, current approaches require high filler concentrations, reducing the mechanical properties and compromising the processability. In this study, FeNi nanoparticles were added to a photopolymer to take advantage of their soft magnetic response and high magnetisation. Field-assisted printing gives rise to magnetic anisotropy by arranging laser-synthesised FeNi nanoparticles into uniaxial magnetic strands of up to 500 μm length. Favoured by the small size and even distribution of the nanoparticles, only 0.02 wt% are needed to detect magnetic responsivity. Thus, the impact on the mechanical property is reduced while facilitating the control over the composite magnetic properties. The practical feasibility of the composites is demonstrated by actuating gripper and impeller structures which offer possibilities in applications like drug delivery and tissue engineering.

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来源期刊

Virtual and Physical Prototyping Engineering-Industrial and Manufacturing Engineering

CiteScore

13.60

自引率

6.60%

发文量

期刊介绍： Virtual and Physical Prototyping (VPP) offers an international platform for professionals and academics to exchange innovative concepts and disseminate knowledge across the broad spectrum of virtual and rapid prototyping. The journal is exclusively online and encourages authors to submit supplementary materials such as data sets, color images, animations, and videos to enrich the content experience. Scope: The scope of VPP encompasses various facets of virtual and rapid prototyping. All research articles published in VPP undergo a rigorous peer review process, which includes initial editor screening and anonymous refereeing by independent expert referees. This ensures the high quality and credibility of published work.