2023
DOI: 10.1002/adem.202301103
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3D Printing of Branched Polyurethane with Tough Mechanical Properties for Stretchable Sensors

Kangjie Shuai,
Kuiyao Zhang,
Shanshan Yao
et al.

Abstract: The poor mechanical properties and difficulties in manufacturing complex structures seriously limit the applications of elastomers especially in flexible electronic sensor. Herein, a series of polyether amine (PEA) grafted polyurethane acrylate oligomers (PUA‐g‐PEAs) and the corresponding low‐viscosity UV‐curable flexible 3D printing elastomers (PEA‐1/IDAs) were synthesized. The results showed that a certain amount of PEA branch exactly had strengthening and toughening effect on polyurethane, resulting in 12% … Show more

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