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Characterization of polymer materials using magnetic levitation

Published online by Cambridge University Press:  06 April 2020

Jun Xie ,
Peng Zhao Open the ORCID record for Peng Zhao [Opens in a new window] ,
Jianfeng Zhang ,
Hongwei Zhou ,
Jianzhong Fu  and
Lih-Sheng Turng
Jun Xie
Affiliation:
The State Key Laboratory of Fluid Power and Mechatronic Systems, Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
Peng Zhao*
Affiliation:
The State Key Laboratory of Fluid Power and Mechatronic Systems, Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
Jianfeng Zhang
Affiliation:
The State Key Laboratory of Fluid Power and Mechatronic Systems, Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
Hongwei Zhou
Affiliation:
Research and Development Department, Tederic Machinery Co., Ltd, Hangzhou, 311124, China
Jianzhong Fu
Affiliation:
The State Key Laboratory of Fluid Power and Mechatronic Systems, Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
Lih-Sheng Turng
Affiliation:
Wisconsin Institute for Discovery, Department of Mechanical Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA
*
a)Address all correspondence to this author. e-mail: pengzhao@zju.edu.cn
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Abstract

The quality of the polymer raw material used in plastic processing methods is an important characteristic because it is one of the main factors in producing quality products. Therefore, the characterization of polymeric pellets in the polymer processing industry is very important to avoid using inferior materials. In general, differences in the interiors of polymeric pellets reflect differences in their densities. In this study, a high-sensitivity magnetic levitation method was used to characterize the polymeric pellets in four different occasions. The device used has a high sensitivity that can distinguish minute differences as small as of 0.0041 g/cm3 in density between different samples. In addition, the method can obtain a sample's density without knowing the weight and volume of the sample. This method can be used to characterize materials by testing only a single pellet, which is very useful for polymeric pellet characterization.

Keywords

magneticpolymerdevices

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Type
Article
Information
Journal of Materials Research , Volume 35 , Issue 9 , 14 May 2020 , pp. 1182 - 1189
Copyright
Copyright © Materials Research Society 2020

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