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Affordable Bio-polymer Matrix Composites for Lightweight Vehicular Structures Automotive News Conference June 13-15, 2005 Wynfrey Hotel, Birmingham, AL.

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Presentation on theme: "Affordable Bio-polymer Matrix Composites for Lightweight Vehicular Structures Automotive News Conference June 13-15, 2005 Wynfrey Hotel, Birmingham, AL."— Presentation transcript:

1 Affordable Bio-polymer Matrix Composites for Lightweight Vehicular Structures Automotive News Conference June 13-15, 2005 Wynfrey Hotel, Birmingham, AL by A. Haque 1, D. Daly 2 and R. Rogers 3 1 Associate Professor, Dept. of Aero. Engineering & Mechanics 2 Director AIME, 3 Director Center of Green Manufacturing, The University of Alabama

2 Goals : To achieve efficient, safe and environmentally friendly vehicles Objectives : To develop, characterize and analyze a) Long/Short fiber reinforced thermoplastic composites b) Bio-polymer matrix composites ThrustsClients Lightweight General Motor Fuel Efficient Daimler Chrysler Low Emission Ford Bio-degradable Applications : Interior and exterior body parts, Chassis components Advanced Vehicle Technology

3 Current Research Areas Process Development -Long/Short fiber reinforced thermoplastic composites -Cellulose based thermoplastic composites -Hybrid Nanocomposites Investigation of Structures and Properties -Dispersion, void contents, Glass Transition Temperature, Strength, Modulus, Failure Strains Fiber-Matrix Interface -Surface Treatment -Stress Analysis -Stress Transfer 2-D unit cell stress transfer model oo L Y X 2L eff b a oo platelet matrix

4

5 Ionic Liquid Process Filtering Dissolving Reconstitution Pulp [C 4 mim]Cl Steam water

6 Process Development for Cellulose based Bio- Composites through Ionic Liquid Route

7 Process Development: Long/Short Fiber Reinforced Thermoplastic PPN resin Heated die Pulling Mechanism Cutter Pultrusion Fiber Cooling channels Melt feed(PPHN) ExtrusionCompression Molding

8 Tensile Properties of Cellulose Film & PP- Cellulose Composites Material MAPP (%) Failure Strength MPa Failure Strain mm/mm Yield Stress MPa Yield Strain mm/ mm Elastic Modulus GPa PP sheet-26.620.16512.090.0250.54 PP- Cellulose 10.029.760.11711.690.0210.62 PP- Cellulose 1.024.340.1279.310.0180.57 Cellulose Film -78.190.024--3.39 PP Film-27.850.052--1.44

9 Effects of MAPP concentration on Flexural & Interlaminar Shear Properties of PP-Cellulose Composites Material FlexuralInterlaminar MAPP (%) Ultimate Failure Strength MPa Failure Strain mm/mm Yield Stress MPa Yield Strain mm/mm Elastic Modulus GPa Shear Strength MPa Polypropylene-37 MPa0.05024.550.0171.66- PP-Cellulose10.045 MPa0.04522.030.0141.816.80 PP-Cellulose1.028 MPa0.05217.240.0191.035.2 Fractured specimen

10 Flexural Properties of various Natural Fibers/ Polypropylene (PP) Composites Material Failure Strength MPa Failure Strain mm/mm Yield Stress MPa Yield Strain mm/mm Elastic Modulus GPa PP-Coir24.960.024220.270.01391.7034 PP-Jute40.900.026529.040.01103.2799 PP-Kantala42.680.056026.680.01711.7670 PP-Palm27.170.035618.550.01261.7497

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