Some of the mechanical and thermal properties of wheat straw filled-PP composites |
| |
| Authors: | Mohammad Farsi |
| |
| Institution: | 1.Department of Wood and Paper Science and Technology,Sari Branch, Islamic Azad University,Sari,Iran |
| |
| Abstract: | The objective of this investigation was to evaluate the mechanical, thermal stability and viscoelastic behaviors of experimental
PP composites made from wheat straw and PP-g-MA coupling agent. Four levels of wheat straw, 10, 20, 25 and 30 wt % and two
levels of coupling agent, 0 and 3 % wt were mixed with PP in rotary type mixer and injection molding process, respectively.
Tensile characteristics and impact strength, thermal gravity and dynamic mechanical and thermal analysis of the samples were
evaluated. Based on the results, it was observed that the tensile properties increased and impact strength decreased with
the increase in the fiber loading from 10 % to 30 %. Further, the composites treated with PP-g-MA exhibited improved mechanical
properties which confirmed efficient fiber-matrix adhesion. DMT analysis showed that the PP composites made of 30 % wheat
straw containing 3 % PP-g-MA showed the highest E’ and lowest tan δ than the untreated ones. Also, the thermal stability of
wheat straw was lower than PP and as filler content in the composites increased, the thermal stability decreased and the ash
content increased. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
