The Comparison of Water Absorption Analysis between Counterrotating and Corotating Twin-Screw Extruders with Different Antioxidants Content in Wood Plastic Composites

被引：37

作者：

Ab Ghani, Mohd Hafizuddin ^{[1
]}

Ahmad, Sahrim ^{[1
]}

机构：

[1] Univ Kebangsaan Malaysia, Mat Sci Programme, Sch Appl Phys, Fac Sci & Technol, Bangi 43600, Malaysia

来源：

ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2011年 / 2011卷

关键词：

POLYPROPYLENE COMPOSITES; MOISTURE ABSORPTION;

D O I：

10.1155/2011/406284

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Water absorption is a major concern for natural fibers as reinforcement in wood plastic composites (WPCs). This paper presents a study on the comparison analysis of water absorption between two types of twin-screw extruders, namely, counterrotating and corotating with presence of variable antioxidants content. Composites of mixed fibres between rice husk and saw dust with recycled high-density polyethylene (rHDPE) were prepared with two different extruder machines, namely, counterrotating and corotating twin screw, respectively. The contents of matrix (30wt%) and fibres (62wt%) were mixed with additives (8wt%) and compounded using compounder before extruded using both of the machines. Samples were immersed in distilled water according to ASTM D 570-98. From the study, results indicated a significant difference among samples extruded by counterrotating and corotating twin-screw extruders. The counterrotating twin-screw extruder gives the smallest value of water absorption compared to corotating twin-screw extruder. This indicates that the types of screw play an important role in water uptake by improving the adhesion between natural fillers and the polymer matrix.

引用

页数：4

共 9 条

[1]

AZMAN H, 2006, THESIS U TECHNOLOGY

[2]

GARDNER D.J., 2010, Extrusion of wood-plastic composites

[3] Environmental effects on the degradation behaviour of sisal fibre reinforced polypropylene composites [J].