Melt density and flow property of PDLLA/nano-CaCO3 bio-composites

被引：17

作者：

Liang, Ji-Zhao ^{[2
]}

Tang, Chak-Yin ^{[1
]}

Zhou, Lin ^{[2
]}

He, Liu ^{[2
]}

Tsui, Chi-Pong ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Ind & Syst Engn, Hong Kong, Hong Kong, Peoples R China

[2] S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Peoples R China

来源：

COMPOSITES PART B-ENGINEERING | 2011年 / 42卷 / 07期

关键词：

Polymer-matrix composites; Rheological properties; Extrusion; Resin flow; MECHANICAL-PROPERTIES; RHEOLOGY; IMPACT;

D O I：

10.1016/j.compositesb.2011.06.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The nanometer calcium carbonate (nano-CaCO3) filled Poly-DL-lactide (PDLLA) bio-composites were prepared with a twin-screw extruder. The melt volume flow rates (MVRs) and melt densities of the composites were measured by means of a melt flow rate instrument under experimental conditions at a temperature range from 180 to 230 degrees C and a load range varying from 2.16 to 10 kg. The result showed that the MVRs of the composites increased nonlinearly with a rise in temperature and an increase of load, but decreased linearly with increasing the filler weight fraction. The melt densities of the composites decreased nonlinearly with a rise of temperature, but increased nonlinearly with increasing the load and increased linearly with an addition of the filler weight fraction. (C) 2011 Published by Elsevier Ltd.

引用

页码：1897 / 1900

页数：4

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