Volume 56, Issue 12 pp. 935-946
Full Paper

Dynamic postpolymerization of 3D-printed photopolymer nanocomposites: Effect of cellulose nanocrystal and postcure temperature

Zhaozhe Yang

Zhaozhe Yang

Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin, Heilongjiang, 150040 China

Department of Chemical Engineering, Université Laval, Québec City, Québec, G1V0A6 Canada

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Guomin Wu

Guomin Wu

Key Laboratory of Biomass Energy and Material of Jiangsu Province, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, Jiangsu, 210042 China

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Siqun Wang

Corresponding Author

Siqun Wang

Center for Renewable Carbon, University of Tennessee, Knoxville, Tennessee, 37996

Correspondence to: S. Wang (E-mail: [email protected]) or M. Xu (E-mail: [email protected]) or X. Feng (E-mail: [email protected])Search for more papers by this author
Min Xu

Corresponding Author

Min Xu

Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin, Heilongjiang, 150040 China

Correspondence to: S. Wang (E-mail: [email protected]) or M. Xu (E-mail: [email protected]) or X. Feng (E-mail: [email protected])Search for more papers by this author
Xinhao Feng

Corresponding Author

Xinhao Feng

Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin, Heilongjiang, 150040 China

Center for Renewable Carbon, University of Tennessee, Knoxville, Tennessee, 37996

Correspondence to: S. Wang (E-mail: [email protected]) or M. Xu (E-mail: [email protected]) or X. Feng (E-mail: [email protected])Search for more papers by this author
First published: 17 April 2018
Citations: 25

ABSTRACT

Cellulose nanocrystal (CNC) reinforced methacrylate (MA) resin nanocomposite was prepared by 3D stereolithography printing. A postcure process, where the printed nanocomposite was heat-treated under different temperatures, was applied to improve the property of the printed nanocomposites. To investigate the effect of CNC and postcure temperature on the kinetic behavior of the postpolymerization of printed nanocomposites, Fourier-transform infrared spectroscopy and differential scanning calorimetry measurement of the printed nanocomposites before and after postcure were analyzed. The postpolymerization of MA nanocomposites was promoted at a postcure temperature of 140 °C for the printed 0.5% CNC/MA nanocomposites compared to the printed MA resin. The addition of CNC retarded the polymerization of MA resin during 3D printing, resulting in poorer mechanical properties of the printed nanocomposites compared to the printed MA resin. However, after postcure, the mechanical properties of the printed nanocomposites were improved by the postpolymerization of the MA nanocomposites. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018, 56, 935–946

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