1 Characterization of Characterization of kenaf/PLA kenaf/PLA composites composites ECO-PCCM ECO-PCCM Fourth Meeting, Sofia, Bulgaria, April Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006 6-7, 2006 PROJECT PROJECT Eco-Houses Based on Eco-Friendly Polymer Eco-Houses Based on Eco-Friendly Polymer Composite Construction Materials - ECO-PCCM Composite Construction Materials - ECO-PCCM 11 OKTOMVRI EUROKOMPOZIT ISO 9001:2000
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Characterization of Characterization of kenaf/PLA kenaf/PLA compositescomposites
ECO-PCCMECO-PCCM Fourth Meeting, Sofia, Bulgaria, April 6-7, Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006 2006
PROJECTPROJECTEco-Houses Based on Eco-Friendly Polymer Eco-Houses Based on Eco-Friendly Polymer
Composite Construction Materials - ECO-PCCMComposite Construction Materials - ECO-PCCM
ECO-PCCMECO-PCCM Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006 Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006
DELIVERED KENAF/PLA PREFORMS BY K.E.F.I
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Hot plate Hot plate
Press piston Press piston
Press platen Press platen
Polster Polster
Release foil Release foil
The panels were fabricated by thermo compression in a closed mold.
Mold Mold
MANUFACTURING OF KENAF/PLA COMPOSITES
Closed mold and application of spacers Kenaf layers Kenaf layers
ECO-PCCMECO-PCCM Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006 Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006
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MANUFACTURING OF KENAF/PLA COMPOSITES
PLA squeezed out
The application of the same press cycle (open mold and high pressure) as the one for kenaf/PP composites was impossible because PLA was squeezed out of the fibers.
Open mold panel
ECO-PCCMECO-PCCM Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006 Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006
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MANUFACTURING OF KENAF/PLA COMPOSITES
To solve the problem of the PLA squeeze out, a To solve the problem of the PLA squeeze out, a closed mold and 9.0 mm thick spacers were closed mold and 9.0 mm thick spacers were applied to prevent full closure of the mold and applied to prevent full closure of the mold and migration of PLA to the boundaries of the migration of PLA to the boundaries of the composite panel.composite panel.
All manufactured composites of kenaf/PLA All manufactured composites of kenaf/PLA were 120x120x~9.0 mmwere 120x120x~9.0 mm
kenaf/PLA layers
spacers
Mold in open position
Mold in closed position
kenaf/PLA composite
ECO-PCCMECO-PCCM Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006 Fourth Meeting, Sofia, Bulgaria, April 6-7, 2006
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The samples of the kenaf fibers preforms are prepared of 2 layers kenaf / PLA and 4 layers kenaf / PLA in dependance of the thickness on the start preforms kenaf / PLA
The final composites were approximately 9 mm thick. The size of the composite The final composites were approximately 9 mm thick. The size of the composite plates is chosen for best utilization of the material because the test specimen plates is chosen for best utilization of the material because the test specimen have to be 120 mm long. Specimen dimensions were according to the have to be 120 mm long. Specimen dimensions were according to the respective standards.respective standards.
Of all available kenaf preforms we prepared final composites.