Influence of Melt-Mixing Process Conditions on Mechanical Performance of Organoclay/Fluoroelastomer Nanocomposites
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M. Khajehpour
Abstract
In this study, Cloisite 20A, an organically modified Montmorillonite (Mnt), has been incorporated into Fluoroelastomer (FKM) through melt intercalation technique. Since the nanocomposite preparation method and conditions, and consequently, the resulting morphology play a critical role in the final properties, the effect of different process conditions such as time, temperature, and shear rate on the vulcanization, thermal and mechanical properties have been investigated. The morphology of nanocomposites, prepared at different melt-mixing conditions, was studied using X-ray diffraction (XRD). Rheological, thermal and mechanical behaviors were investigated by moving die rheometer (MDR), thermal gravimetric analysis (TGA), and tensile strength test respectively. Also, the crosslinking density has been measured for the nanocomposites. The best mechanical performance of clay/FKM nanocomposites was attained by optimization of the melt-mixing conditions. We achieved the following enhancements for FKM by clay incorporation: enhancement of tensile strength up to 70 %; elongation up to 94 %; and modulus up to 405 %. Process temperature was found to have a critical role in the final properties of the nanocomposites, while mixing residual time and shear rate had a moderate effect. The most desirable properties and curing behaviors, including highest maximum torques, cure rates, crosslinking densities, fast crosslinking kinetics, high intercalation and best improved tensile strengths, resulted with specific combination of melt-mixing parameters.
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© 2016, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Influence of Melt-Mixing Process Conditions on Mechanical Performance of Organoclay/Fluoroelastomer Nanocomposites
- Melt Creep Recovery of Polyamide 6 and Polypropylene Nanocomposites Blended with Layered Silicate
- Dielectric Behavior of OPEFB Reinforced Polycaprolactone Composites at X-Band Frequency
- Numerical Modeling of Bubble Growth in Microcellular Polypropylene Produced in a Core-Back Injection Process Using Chemical Blowing Agents
- Numerical Simulation and Experimental Validation of Granite Powder Filled Jute Epoxy Composite for Slurry Jet Erosive Wear
- Rheological Modeling of Polymeric Melts in Extruders upon Two-Dimensional Shear Flow
- Experimental Investigation on Curing Stress in Polymer Composite Using Digital Gradient Sensing Technique
- Experimental and Numerical Investigation of Shrinkage and Warpage of a U-Shaped Injection Molded Part
- Modeling for Starve Fed/Flood Fed Mixing Single-Screw Extruders
- The Comparative Study of Different Mixing Methods for Microcrystalline Cellulose/Polyethylene Composites
- Fabrication of Superhydrophobic Polyethylene Parts by Rotomolding
- Numerical Simulation of Chaotic Mixing in Single Screw Extruders with Different Baffle Heights
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Influence of Melt-Mixing Process Conditions on Mechanical Performance of Organoclay/Fluoroelastomer Nanocomposites
- Melt Creep Recovery of Polyamide 6 and Polypropylene Nanocomposites Blended with Layered Silicate
- Dielectric Behavior of OPEFB Reinforced Polycaprolactone Composites at X-Band Frequency
- Numerical Modeling of Bubble Growth in Microcellular Polypropylene Produced in a Core-Back Injection Process Using Chemical Blowing Agents
- Numerical Simulation and Experimental Validation of Granite Powder Filled Jute Epoxy Composite for Slurry Jet Erosive Wear
- Rheological Modeling of Polymeric Melts in Extruders upon Two-Dimensional Shear Flow
- Experimental Investigation on Curing Stress in Polymer Composite Using Digital Gradient Sensing Technique
- Experimental and Numerical Investigation of Shrinkage and Warpage of a U-Shaped Injection Molded Part
- Modeling for Starve Fed/Flood Fed Mixing Single-Screw Extruders
- The Comparative Study of Different Mixing Methods for Microcrystalline Cellulose/Polyethylene Composites
- Fabrication of Superhydrophobic Polyethylene Parts by Rotomolding
- Numerical Simulation of Chaotic Mixing in Single Screw Extruders with Different Baffle Heights
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts