4D printing shape memory polymers for dynamic jewellery and fashionwear. Issue 4 (1st October 2016)

• Record Type: Journal Article
• Authors: Zarek, Matt; Layani, Michael; Eliazar, Shira; Mansour, Nicola; Cooperstein, Ido; Shukrun, Efrat; Szlar, Atara; Cohn, Daniel; Magdassi, Shlomo
• Is Part Of: Virtual and physical prototyping. Volume 11:Issue 4(2016)
• Page Start: 263
• Page End: 270
• Publication Date: 2016-10-01
• Subjects: 4D printing -- shape memory polymers -- polycaprolactone -- textiles -- jewellery; Rapid prototyping -- Periodicals; Virtual computer systems -- Periodicals; Prototypes, Engineering -- Periodicals; Production engineering -- Periodicals; Design, Industrial -- Periodicals; 670.285
• DOI: 10.1080/17452759.2016.1244085
• Languages: English
• ISSNs: 1745-2759

Abstract

ABSTRACT: 4D printing is a novel approach that enables dynamic functionality in ordinary static object. We used a methacrylated semicrystalline polymer to print objects exhibiting thermally triggered shape memory behaviour. By exploring various molecular weights, it was found that a methacrylated polycaprolactone polymer with a number average molecular weight of 10, 000 g mol −1 exhibited the best thermal and mechanical behaviour. The effect of dyes' addition to the ink formulation on the photopolymerisation and on the printing processes was evaluated. The ink was utilised for demonstrating fabrication of dynamic jewellery and a shoe accessory by Digital Light Processing printing.