Morphology and properties of hybrid composites based on polypropylene/polylactic acid blend and bamboo fiber

The design of new composites based on a polypropylene (PP)/polylactic acid (PLA) matrix and filler bamboo fiber (BF) leads to changes in process ability, morphology, and rheological properties of the raw thermoplastic. We have designed more environmentally friendly composites blended with PLA, fille...

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Bibliographic Details
Published in:Bioresource technology 2010-10, Vol.101 (20), p.7944-7950
Main Authors: ZHANG, Ying-Chen, WU, Hong-Yan, QIU, Yi-Ping
Format: Article
Language:English
Subjects:
Bamboo fiber
Bambusa - chemistry
Biological and medical sciences
Calorimetry, Differential Scanning
Fundamental and applied biological sciences. Psychology
Lactic Acid - chemistry
Matrix-composites morphology
Polyesters
Polylactic acid
Polymers - chemistry
Polypropylene
Polypropylenes - chemistry
Rheological properties
Rheology
X-Ray Diffraction
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Summary:The design of new composites based on a polypropylene (PP)/polylactic acid (PLA) matrix and filler bamboo fiber (BF) leads to changes in process ability, morphology, and rheological properties of the raw thermoplastic. We have designed more environmentally friendly composites blended with PLA, filled with bamboo fiber. To refine dispersion of PLA and improve composite toughness, MAH-g-PP was included in the filler–matrix interface to enhance interface strength for PP, PLA and BF. The incorporation of MAH-g-PP into composites brought about beneficial changes in morphology and rheological, related with improved dispersion of PLA and increased bamboo fiber–matrix interactions. The SEM results showed the particle size of the dispersed PLA and BF phase significantly reduced with adding a litter MAH-g-PP. The XRD and DSC results showed that spread and phases in the composites preserved crystallization. The good rheological, morphological and thermal properties obtained when the ratio of PP/PLA/BF/MAH-g-PP was 48.75/13/35/3.25.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2010.05.007