Modification of Syndiotactic Polypropylene with Nano-Calcium Carbonate and Halloysite
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L. Pietrzak
, E. Piorkowska , A. Galeski , J. Bojda and P. Sowinski
Abstract
Composites of syndiotactic polypropylene (sPP) with 5 to 17 vol.° of halloysite and 2.5 to 7.5 vol.° of stearic acid modified nano-calcium carbonate, having an average grain size of 80 nm, were prepared and examined. The effect of fillers on thermal properties of sPP was different; halloysite increased markedly peak crystallization temperature. The composites with the highest filler contents, 7.5 vol.° of calcium carbonate and 17 vol.° of halloysite, exhibited a solid-like behavior at 170 °C, with the storage modulus exceeding the loss modulus in the entire frequency range, that is 512 to 0.1 rad s−1. The composites with halloysite exhibited decreased Izod impact strength compared to neat sPP. On the contrary, 2.7 fold improvement of the impact strength was found for the composites with nano-calcium carbonate. Moreover, nano-calcium carbonate did not worsen the drawability of the materials during uniaxial drawing. It was found that debonding at calcium carbonate/sPP interface occurred both during the impact test and tensile drawing facilitating the plastic deformation of the polymer.
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Articles in the same Issue
- Contents
- Contents
- Editorial
- Editorial
- Special Issue Contributions
- Preparation of Poly(l-lactic acid) Scaffolds by Thermally Induced Phase Separation: Role of Thermal History
- Modification of Syndiotactic Polypropylene with Nano-Calcium Carbonate and Halloysite
- Enhancement of Heat Seal Properties of Polypropylene Films by Elastomer Incorporation
- Flow-Induced Crystallization of Polyamide-6
- PLA Crystallization Kinetics and Morphology Development
- Morphology in Multilayer Blown Films of Polypropylene and Ethylene-Octene Copolymer Blends
- A Criterion for the Formation of Fibrillar Layers in Injection Molded Parts
- Abnormal Behaviors in the Capillary Rheometry of Plastisol Formulations
- The Effect of Cellulose Nanocrystals (CNC) on Isothermal Crystallization Kinetics of LLDPE and HDPE
- A Rheological Investigation of the Crystallization Kinetics of Syndiotactic Polypropylene of Varying Degree of Tacticity
- Effect of Mutual Interaction between High and Low Stereo-Regularity Components on Structure Formation in Melt Spinning Process of Isotactic Polypropylene Blend Fibers
- Analysis of the No-Flow Criterion Based on Accurate Crystallization Data for the Simulation of Injection Molding of Semi-Crystalline Thermoplastics
- Interfacial Tension Properties in Biopolymer Blends: From Deformed Drop Retraction Method (DDRM) to Shear and Elongation Rheology-Application to Blown Film Extrusion
- Stress Optical Behavior and Structure Development in Melt Spun PEEK/PEI Blends
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Editorial
- Editorial
- Special Issue Contributions
- Preparation of Poly(l-lactic acid) Scaffolds by Thermally Induced Phase Separation: Role of Thermal History
- Modification of Syndiotactic Polypropylene with Nano-Calcium Carbonate and Halloysite
- Enhancement of Heat Seal Properties of Polypropylene Films by Elastomer Incorporation
- Flow-Induced Crystallization of Polyamide-6
- PLA Crystallization Kinetics and Morphology Development
- Morphology in Multilayer Blown Films of Polypropylene and Ethylene-Octene Copolymer Blends
- A Criterion for the Formation of Fibrillar Layers in Injection Molded Parts
- Abnormal Behaviors in the Capillary Rheometry of Plastisol Formulations
- The Effect of Cellulose Nanocrystals (CNC) on Isothermal Crystallization Kinetics of LLDPE and HDPE
- A Rheological Investigation of the Crystallization Kinetics of Syndiotactic Polypropylene of Varying Degree of Tacticity
- Effect of Mutual Interaction between High and Low Stereo-Regularity Components on Structure Formation in Melt Spinning Process of Isotactic Polypropylene Blend Fibers
- Analysis of the No-Flow Criterion Based on Accurate Crystallization Data for the Simulation of Injection Molding of Semi-Crystalline Thermoplastics
- Interfacial Tension Properties in Biopolymer Blends: From Deformed Drop Retraction Method (DDRM) to Shear and Elongation Rheology-Application to Blown Film Extrusion
- Stress Optical Behavior and Structure Development in Melt Spun PEEK/PEI Blends
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts