Effect of PEG on impact strength of PLA hybrid biocomposite

Author

Anuar, H. ; Azlina, H.N. ; Suzana, A.B.K. ; Kaiser, M.R. ; Bonnia, N.N. ; Surip, S.N. ; Razak, S.B.A.

Author_Institution

Dept. of Manuf. & Mater. Eng., Int. Islamic Univ. Malaysia, Kuala Lumpur, Malaysia

fYear

2012

fDate

23-26 Sept. 2012

Firstpage

473

Lastpage

476

Abstract

This paper investigates the impact strength of plasticized polylactic acid (PLA) filled with kenaf fiber (KF) and montmorrilonite (MMT). The compositional ratio of PLA, KF and MMT is 77:20:3. Hybrid biocomposite was prepared through extrusion process and then injection moulded. PLA is one of the biodegradable polymers that have poor impact properties. Therefore, to overcome this problem, 3 wt% polyethylene glycol (PEG) was added as a plasticizer in the processing of hybrid biocomposite. From the Charpy impact test, impact strength of plasticized biocomposite improved significantly as compared to unplasticized biocomposite. The impact strength of various composition of biocomposite increased with the presence of PEG, and p-PLA-KF-MMT posses the highest impact strength which is 89.5 kJ/m². Transmission electron micrograph (TEM) of hybrid biocomposite revealed the well-distributed of MMT with intercalated structure.

Keywords

composite materials; fibres; impact (mechanical); impact strength; impact testing; injection moulding; plasticity; transmission electron microscopy; Charpy impact test; PEG effect; PLA hybrid biocomposite; TEM; compositional ratio; impact properties; impact strength; kenaf fiber; montmorrilonite; p-PLA-KF-MMT; plasticized biocomposite; plasticized polylactic acid; polyethylene glycol; transmission electron micrograph; Dispersion; Glass; Natural fibers; Plastics; Programmable logic arrays; Temperature; Hybrid Biocomposite; Impact Strength; Plasticizer; Polyethylene Glycol;

fLanguage

English

Publisher

ieee

Conference_Titel

Business, Engineering and Industrial Applications (ISBEIA), 2012 IEEE Symposium on

Conference_Location

Bandung

Print_ISBN

978-1-4577-1632-4

Type

conf

DOI

10.1109/ISBEIA.2012.6422930

Filename

6422930