Yu, T. X.; Liu, Y. Y.; Tian, F. Y.; Ning, N. Y.; Yu, B.; Tian, M. Silicone elastomer with high elongation at break used in digital light processing 3D printing. Chinese J. Polym. Sci. 2023, 41, 1786–1795
Tian-Xin Yu, Ya-Yuan Liu, Fu-Yue Tian, et al. Silicone Elastomer with High Elongation at Break Used in Digital Light Processing 3D Printing[J]. Chinese Journal of Polymer Science, 2023, 41(11): 1786-1795.
Yu, T. X.; Liu, Y. Y.; Tian, F. Y.; Ning, N. Y.; Yu, B.; Tian, M. Silicone elastomer with high elongation at break used in digital light processing 3D printing. Chinese J. Polym. Sci. 2023, 41, 1786–1795DOI: 10.1007/s10118-023-2983-6.
Tian-Xin Yu, Ya-Yuan Liu, Fu-Yue Tian, et al. Silicone Elastomer with High Elongation at Break Used in Digital Light Processing 3D Printing[J]. Chinese Journal of Polymer Science, 2023, 41(11): 1786-1795.DOI: 10.1007/s10118-023-2983-6.
Silicone Elastomer with High Elongation at Break Used in Digital Light Processing 3D Printing
The light curing system is designed based on crosslinking reaction and in-situ chain extension which can be applied in 3D printing
resulting in lower viscosity of the precursor before printing and considerable mechanical properties after printing.
Abstract
3D printing silicone elastomer has demonstrated great potential in diverse areas such as medical devices
flexible electronics and soft robotics. It is of great value to investigate how to improve the mechanical properties
including tensile stre
ngth and elongation at break of printed parts. In this work
a light curing system that can be applied in silicone elastomer 3D printing is explored
which is composed of vinyl terminated polysiloxane as the macromer and thiol containing polysiloxane as the crosslinking agent
and a chain extension reaction is also introduced into this light curing system
via
the addition of the chain extender dithiol molecules
and a light curing system accompanied with chain extension is designed and realized based on the thiol-ene click reaction mechanism. After reinforced with silica fillers
the obtained light curing system can endow the light curing silicone elastomer with better mechanical properties under the condition of a lower viscosity of the precursor
the tensile strength and elongation at break can reach 525.5 kPa and 601%
respectively. This light curing system provides a feasible method to solve the contradiction between the viscosity of the precursor and the mechanical properties of the light curing elastomer in the digital light processing (DLP) 3D printing field.
Wallin,T.J.;Pikul,J.H.;Bodkhe,S.;Peele,B.N.;MacMurray,B.C.;Therriault,D.;McEnerney,B.W.;Dillon,R.P.;Giannelis,E.P.;Shepherd,R.F.Clickchemistrystereolithographyforsoftrobotsthatself-heal. J. Mater. Chem. B 2017 , 5 ,6249−6255..
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Related Author
Xia Dong
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Related Institution
University of Chinese Academy of Sciences
CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences
Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College/National Center for Cardiovascular Diseases
Institute of Polymers and Energy Chemistry (IPEC)/Jiangxi Provincial Key Laboratory of New Energy Chemistry, Nanchang University
National Engineering Research Center for Carbohydrate Synthesis/Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry ofEducation, College of Chemistry and Chemical Engineering, Jiangxi Normal University