ECO-PCCM Second Meeting, Belgrade, 7-8 April Eco-Houses Based on Eco-Friendly Polymer Composite Construction Materials ECO-PCCM ISO 9001:2000 PRODUCTION AND CHARACTERIZATION OF KENAF FIBERS / PP COMPOSITES

ECO-PCCM Second Meeting, Belgrade, 7-8 April CompositionPcs Size, mm Thickness, mm Specific weight, kg/m 3 ISOLKENAF 50% kenaf, 35% polyester and 15% biocom x ISOLKENAF 70% kenaf, 30% polypropylene x ISOLKENAF 50% kenaf, 50% polypropylene x ISOLKENAF 70% kenaf, 30% polypropylene x ISOLKENAF 80% kenaf, 20% biocom x ISOLKENAF 80% kenaf, 20% biocom x ISOLKENAF 80% kenaf, 20% biocom x ISOLKENAF 80% kenaf, 20% biocom Roll1200x AVAILABILITY OF KENAF SAMPLES

ECO-PCCM Second Meeting, Belgrade, 7-8 April KENAF FIBERS PREFORMS

ECO-PCCM Second Meeting, Belgrade, 7-8 April PRODUCTION OF COMPOSITES Molding Line

ECO-PCCM Second Meeting, Belgrade, 7-8 April Hot plate Kenaf layers Press piston Press platen Polster Release foil Thermocouple PRODUCTION OF COMPOSITES

ECO-PCCM Second Meeting, Belgrade, 7-8 April Glass/epoxy skin PRODUCTION OF COMPOSITES Press Cycle: Temperature: 170 o C Pressure: 240 bar Time: 15 min Pure kenaf/PP composites 1 st Set 2 nd Set Purpose: - Increase stifness - Increase flex.strngth. - Decrease water absrp.

ECO-PCCM Second Meeting, Belgrade, 7-8 April PRODUCTION OF COMPOSITES  All the samples (150 x 300 mm) are prepared of 7 layers of Isolkenaf (80% kenaf, 20% bicomp) under the following conditions:  Press Cycle: Temperature: 170 o C Pressure: 240 bar Time: 15 min  The final composites were ~ 5 mm thick and weighted ~5.4 kg/m 2.  The size of the composite plates is chosen for best utilization of the material since the test specimen have to be 120 mm long.

ECO-PCCM Second Meeting, Belgrade, 7-8 April TESTING OF COMPOSITES Universal mechanical properties testing machine and Charpy impact tester

ECO-PCCM Second Meeting, Belgrade, 7-8 April STRESS-STRAIN CHART OF THE FLEXURAL TEST

ECO-PCCM Second Meeting, Belgrade, 7-8 April TESTING OF COMPOSITES PropertyTest MethodSingle ValuesAverage Specific gravity, g/cm 3 JUS G. S ; 0.92; 0.93; 0.94; Water absorption, %ISO/DP ; 27.1; 31.6; 31.5; Fire resistanceUL 94burns Flexural strength, MPaDIN ; 27.9; 26.7; 30.0; Flexural modulus, GPaDIN ; 7.830; 7.635; ;

ECO-PCCM Second Meeting, Belgrade, 7-8 April TESTING OF COMPOSITES PropertyTest MethodSingle ValuesAverage Impact toughness, kJ/m 2 an 5 DIN ; 31.2; Impact toughness, kJ/m 2 an 15 DIN ; 69.8; Compression strength, MPa DIN ; 16.0; 14.0; 19.6;

ECO-PCCM Second Meeting, Belgrade, 7-8 April THANK YOU FOR YOUR ATTENTION