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Vol. 26 No. 9 (2014): Vol 26 Issue 9

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Effects of Continuous Volume Extensional flow on Low Density Polyethylene/Calcium Carbonate Nanocomposites

https://doi.org/10.14233/ajchem.2014.15798
Shu Feng Zhai
The National Engineering Research Center of Novel Equipment for Polymer Processing, P.R. China ;The Key Laboratory of Polymer Processing Engineering of Ministry of Education,South China University of Technology, Guangzhou 510640, Guangdong, P.R. China
Shi Kui Jia
The National Engineering Research Center of Novel Equipment for Polymer Processing, P.R. China ;The Key Laboratory of Polymer Processing Engineering of Ministry of Education,South China University of Technology, Guangzhou 510640, Guangdong, P.R. China
Zan Huang
The National Engineering Research Center of Novel Equipment for Polymer Processing, P.R. China ;The Key Laboratory of Polymer Processing Engineering of Ministry of Education,South China University of Technology, Guangzhou 510640, Guangdong, P.R. China
Jin Ping Qu
The National Engineering Research Center of Novel Equipment for Polymer Processing, P.R. China ;The Key Laboratory of Polymer Processing Engineering of Ministry of Education,South China University of Technology, Guangzhou 510640, Guangdong, P.R. China

Corresponding Author(s) : Jin Ping Qu

jpqu@scut.edu.cn; 8959422@163.com

Asian Journal of Chemistry, Vol. 26 No. 9 (2014): Vol 26 Issue 9

Abstract

In this paper, low density polyethylene (LDPE)/calcium carbonate (CaCO3) nanocomposites were prepared both by Battenfeld screw extruder and vane extruder which is a kind of innovative equipment for polymer processing. Effects of the two processing equipment on the morphology, the thermal behaviour and the mechanical properties of the composites were investigated by scanning electron microscopy, differential scanning calorimetry (DSC), wide-angle X-ray diffraction and mechanical testing. SEM examinations showed that the nanocomposites extruded in the vane extruder had a smaller particle diameter and better effects on the distribution and dispersion mixing, compared with those extruded by the screw extruder. Correspondingly, it exhibited a higher degree of crystallinity, which was determined by DSC. Both the tensile and flexural properties of LDPE/CaCO3 nanocomposites extruded by the vane extruder are much higher than that extruded by the screw extruder.

Keywords

Volume extensional flow Vane extruder Nanocomposites Dispersion
Feng Zhai, S., Kui Jia, S., Huang, Z., & Ping Qu, J. (2014). Effects of Continuous Volume Extensional flow on Low Density Polyethylene/Calcium Carbonate Nanocomposites. Asian Journal of Chemistry, 26(9), 2677–2682. https://doi.org/10.14233/ajchem.2014.15798
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