Next Article in Journal
Effect of Organic Modifier and Clay Content on Non-Isothermal Cold Crystallization and Melting Behavior of Polylactide/Organovermiculite Nanocomposites
Previous Article in Journal
Small and Medium Amplitude Oscillatory Shear Rheology of Model Branched Polystyrene (PS) Melts
Open AccessArticle

Investigation on Foamed PP/Nano-CaCO3 Composites in a Combined in-Mold Decoration and Microcellular Injection Molding Process

by Kui Yan 1, Wei Guo 1,2,3,4,*, Huajie Mao 2,3,5,*, Qing Yang 1,2,3 and and Zhenghua Meng 1,2,3
1
School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
2
Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, China
3
Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, China
4
Institute of Advanced Materials and Manufacturing Technology, Wuhan University of Technology, Wuhan 430070, China
5
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(2), 363; https://doi.org/10.3390/polym12020363
Received: 21 November 2019 / Revised: 30 December 2019 / Accepted: 16 January 2020 / Published: 7 February 2020
A combined in-mold decoration and microcellular injection molding (IMD/MIM) method has been used in this paper. The foamed PP/nano-CaCO3 composites were prepared to investigate their mechanical properties, cellular structure, and surface quality. The content of nano-CaCO3 varied from 0 to 10 wt %. The results showed that nano-CaCO3 acted as a reinforcing phase and nucleating agent, which help to improve the mechanical properties of foamed composites. The cellular structure and mechanical properties were optimum when the nano-CaCO3 content was 6 wt %. In the vertical section, the cell size and density of transition layer on the film side was bigger than that on the non-film side. In the parallel section, the cell ratio of length to diameter of transition layer on the film side was smaller than that on the non-film side, and the cell tile angle was larger than that on the non-film side. With nano-CaCO3 content increasing, the surface quality showed a trend of decreasing first and then increasing.
Keywords: in-mold decoration; microcellular injection molding; mechanical properties; cellular structure; surface quality in-mold decoration; microcellular injection molding; mechanical properties; cellular structure; surface quality
Show Figures

Graphical abstract

MDPI and ACS Style

Yan, K.; Guo, W.; Mao, H.; Yang, Q.; Meng, Z. Investigation on Foamed PP/Nano-CaCO3 Composites in a Combined in-Mold Decoration and Microcellular Injection Molding Process. Polymers 2020, 12, 363.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop