Poly(L-lactic acid) composites with flax fibers modified by plasticizer absorption

Wong, S, Shanks, R and Hodzic, A 2003, 'Poly(L-lactic acid) composites with flax fibers modified by plasticizer absorption', Polymer Engineering and Science, vol. 43, no. 9, pp. 1566-1574.

Document type: Journal Article
Collection: Journal Articles

Title Poly(L-lactic acid) composites with flax fibers modified by plasticizer absorption
Author(s) Wong, S
Shanks, R
Hodzic, A
Year 2003
Journal name Polymer Engineering and Science
Volume number 43
Issue number 9
Start page 1566
End page 1574
Total pages 8
Publisher John Wiley and Sons
Abstract The effect of modified flax fibers by plasticizer absorption in poly(L-lactic acid) composites was investigated. The plasticizes chosen were triethyl citrate (TEC), tributyl citrate (TBC) and glycerol triacetate (GTA), which were derived from natural sources. Characterization was performed by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). The morphology was examined from scanning electron microscopy (SEM) and optical microscopy (OM). The results showed that the plasticizer caused a marked increase in the storage modulus of the composites, which could be due to an improvement in the morphology of the matrix and a smoother surface coverage of the fibers by the matrix. The thermal properties were also affected, in which the glass transition temperature (Tg), the crystallization temperature (Tc) and the crystallinity (Xc) were reduced depending on the plasticizer. The citrate esters revealed to be the most effective plasticizers of those tested.
Subject Physical Chemistry of Materials
DOI - identifier 10.1002/pen.10132
Copyright notice © 2003 Society of Plastics Engineers
ISSN 0032-3888
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