Influence of Dicumyl Peroxide Content on Thermal and Mechanical Properties of Polylactide
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P. Rytlewski
Abstract
The aim of this article was to determine the effect of the dicumyl peroxide (DCP) content on thermal and mechanical properties of polylactide (PLA). Reactive extrusion of the PLA and DCP blends was performed. The DCP content varied from 0.2 to 1.0 wt.%. The extruded samples were characterized by the Fourier transform infrared spectroscopy (FTIR), analyses of gel content and swelling degree, thermogravimetry (TG), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and tensile and impact strength tests. It was found that DCP caused crosslinking of PLA as well as contributed to formation of low-molecular weight products of decomposition and degradation processes. These products caused plasticization of PLA, which led to a decrease in the glass transition temperature. An increase in tensile strength and decrease in impact strength were observed as the DCP content increased.
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© 2011, Carl Hanser Verlag, Munich
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Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Applicability of the Impact Response Analysis Method for Reinforced Concrete Beams Mixed with Polyvinyl Alcohol Short Fibers
- Epoxy-Montmorillonite Nanocomposites Applied to Powder Coatings
- Direct Imprinting Using Magnetic Nickel Mold and Electromagnetism Assisted Pressure for Replication of Microstructures
- Automated Mold Heating System Using High Frequency Induction with Feedback Temperature Control
- The Prediction of Bowing Distortion of Film after Transverse Stretching with Consideration of Heated Air Flow in a Tenter
- The Influence of Injection Molding and Injection Compression Molding on Ultra-high Molecular Weight Polyethylene Polymer Microfabrication
- A Design-of-Experiment Study on the Microcellular Extrusion of Sub-critical CO2 Saturated PLA Pellets
- Optimization of Injection Molding Process for SGF and PTFE Reinforced PC Composites Using Response Surface Methodology and Simulated Annealing Approach
- Flow Visualisation in Co-rotating Twin Screw Extruders: Positron Emission Particle Tracking and Numerical Particle Trajectories
- The Influence of Melt and Process Parameters on the Quality and Occurrence of Part Defects in Water-assisted Injection Molded Tubes
- Model and Numerical Simulation for the Second Penetration in Water-assisted Injection Molding
- Influence of Extrusion Conditions on the Rheological Behavior of Nuclear Bituminized Waste Products
- Influence of Dicumyl Peroxide Content on Thermal and Mechanical Properties of Polylactide
- Rapid Communications
- Calculation of Average Residence Time in a Ko-kneader
- PPS-News
- PPS News
