Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17486
Title: Melt flow behavior in capillary extrusion of nanosized calcium carbonate-filled poly(L -lactic acid) biocomposites
Authors: Liang, JZ
Tang, CY 
Zhou, L
Tsui, CP 
Li, FJ
Issue Date: 2012
Publisher: John Wiley & Sons
Source: Polymer engineering and science, 2012, v. 52, no. 9, p. 1839-1844 How to cite?
Journal: Polymer engineering and science 
Abstract: Nanosized calcium carbonate (nano-CaCO 3)-filled poly-L-lactide (PLLA) biocomposites were compounded by using a twin-screw extruder. The melt flow behavior of the composites, including their entry pressure drop, melt shear flow curves, and melt shear viscosity were measured through a capillary rheometer operated at a temperature range of 170-200°C and shear rates of 50-10 3 s -1. The entry pressure drop showed a nonlinear increase with increasing shear stress and reached a minimum for the filler weight fraction of 2% owing to the "bearing effect" of the nanometer particles in the polymer matrix melt. The melt shear flow roughly followed the power law, while the effect of temperature on the melt shear viscosity was estimated by using the Arrhenius equation. Hence, adding a small amount of nano-CaCO 3 into the PLLA could improve the melt flow behavior of the composite. POLYM. ENG. SCI., 52:1839-1844, 2012.
URI: http://hdl.handle.net/10397/17486
ISSN: 0032-3888
EISSN: 1548-2634
DOI: 10.1002/pen.23130
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

15
Last Week
0
Last month
0
Citations as of Sep 10, 2017

WEB OF SCIENCETM
Citations

7
Last Week
0
Last month
0
Citations as of Sep 20, 2017

Page view(s)

39
Last Week
2
Last month
Checked on Sep 17, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.