Effects of extruding factors on mechanical and physical properties of polypropylene/rubberwood flour composites

Main Article Content

Chatree Homkhiew
Worapong Boonchouytan
Watthanaphon Cheewawuttipong
Lagsamee Buppapo
Phatchanok Auttagornsakun
Thanate Ratanawilai

Abstract

The objective of this research was to investigate effects and interactions of extruding factors on the mechanical and physical properties of composites produced from recycled polypropylene and rubberwood flour. Central composite design (CCD) and response surface methodology (RSM) were applied to study the effects of temperatures in zones 1 and 2, as well as screw rotation speed of a twin-screw extruder. The results revealed that an increase of temperature in zone 1 resulted in increased tensile strength (TS) and hardness, but the modulus of rupture (MOR) and water absorption (WA) of the composites were reduced. Increased temperature in zone 2 decreased the TS and MOR of the composites, but the hardness and WA clearly increased. Furthermore, the TS, MOR and WA of the composites decreased with an increase of screw rotation speed, but hardness increased.

Article Details

How to Cite
Homkhiew, C., Boonchouytan, W., Cheewawuttipong, W., Buppapo, L., Auttagornsakun, P., & Ratanawilai, T. (2018). Effects of extruding factors on mechanical and physical properties of polypropylene/rubberwood flour composites. Engineering and Applied Science Research, 45(2), 120–126. Retrieved from https://ph01.tci-thaijo.org/index.php/easr/article/view/84825
Section
ORIGINAL RESEARCH

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