Preparation and Characterization of a Biocomposite Based on Cork Microparticles in Poly(β-hydroxybutyrate)-co-Poly(β-hydroxyvalerate) Matrix
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M. Ayadi
Abstract
Poly(β-hydroxybutyrate)-co-poly(β-hydroxyvalerate) (PHBV) loaded with 1 to 10 wt.% of cork microparticles (CM) were manufactured via compression molding technique. CM were isolated by alkali, bleaching and acid hydrolysis treatments. They were then added to the PHBV matrices via solution casting technique. The filler microparticles showed typical diameters of 10 to 55 μm. Mechanical tests in tension showed that in PHBV containing 5 wt.% CM the Young's modulus and the tensile strength increased by 50% and 10% respectively. Meanwhile, the elongation at break decreased by 70% for the same CM content. The mechanical behavior of the reinforced composites was discussed in conjunction with the morphology of the samples studied by optical and electron microscopy. The temperature of initial degradation Tid, the temperature at 5% weight loss Td5% and the temperature of maximum degradation Tdmax increase with increasing CM content by up to 13.6°C, 10.1°C and 12.3°C respectively for the composite of 5 wt.%. The composite with 10 wt.% CM content showed the best thermal stability with temperature increments of 20°C, 14.1°C and 21.5°C respectively. DSC results showed that the presence of CM has a very weak influence on the melting/crystallization behavior of the composites.
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- Partially Filled Flow Simulation Using Meshfree Method for High Viscosity Fluid in Plastic Mixer
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Flow-Fiber Coupled Viscosity in Injection Molding Simulations of Short Fiber Reinforced Thermoplastics
- Effects of Cooling Ways on the Structure of Polypropylene Hollow Fiber Membranes Prepared by Stretching
- Fill Factor Effects in Highly-Viscous Non-Isothermal Rubber Mixing Simulations
- Morphology and Isothermal Crystallization Kinetics of Polypropylene/Poly(ethylene-co-vinyl alcohol) Blends
- Mechanical and Thermal Properties of Teak Wood Flour/Starch Filled High Density Polyethylene Composites
- Three-Dimensional, Non-Isothermal Simulations of the Effect of Speed Ratio in Partially-Filled Rubber Mixing
- Edge Effect in Hot Embossing and its Influence on Global Pattern Replication of Polymer-Based Microneedles
- Enhancing Flame Retardancy, Thermal Stability, Physical and Mechanical Properties of Polyethylene Foam with Polyphosphate Modified Expandable Graphite and Ammonium Polyphosphate
- Processing LDS-Circuit Boards by Selective Laser Sintering
- Structural and Optical Characteristics of Laser Irradiated CdSe/PVA Nanocomposites
- The Effect of Ultraviolet Ageing on the Flame Retardancy, Thermal Stability and Mechanical Properties of LGFPP/IFR
- Preparation and Characterization of a Biocomposite Based on Cork Microparticles in Poly(β-hydroxybutyrate)-co-Poly(β-hydroxyvalerate) Matrix
- Partially Filled Flow Simulation Using Meshfree Method for High Viscosity Fluid in Plastic Mixer
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
