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Investigation of the Mechanical Properties and Chemical Resistance of PC/PBT/Impact Modifier Blends

  • M.-Y. Lyu , Y. Pae und C. Nah
Veröffentlicht/Copyright: 3. Juni 2013
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International Polymer Processing
Aus der Zeitschrift International Polymer Processing Band 18 Heft 4

Abstract

Mechanical properties, flow characteristics and chemical resistance of polycarbonate (PC)/poly(butylene terephthalate) (PBT)/impact modifier (IM) blends were investigated over the wide composition range of PC and PBT. Mechanical properties of the PC/PBT/IM blends for two different IMs, butadiene based IM and butyl acrylate based IM, were studied. For the study of chemical resistance of the PC/PBT/IM blends, test specimens were dipped in solvent, thinner, and then variations of mechanical properties were analyzed. Tensile and flexural strengths were increased linearly and heat distortion temperature (HDT) also increased as PC content in the blends increased. Impact strength increased drastically as PC content in the blends increased up to 50 wt.-%, and then it leveled out for over 50 wt.-% of PC. Flowability of the blends decreased as PC content increased. Impact strengths of the blends were different from IMs specially at low temperatures. The blends with butyl acrylate based IM showed slightly higher impact strength than the blends with butadiene based IM at 0°C and room temperature. However, the blends with butadiene based IM showed remarkably higher impact strength than the blends with butyl acrylate based IM at the temperatures below 0°C. After the chemical treatment of test specimens, tensile and flexural strengths decreased, and impact strength increased as PC content in the blends increased. PC in the blends would become mild and ductile when it contacted with solvent, thus the impact strength increased while tensile and flexural strengths decreased.

* Mail address: M.-Y. Lyu, Institute of Precision Machinery Technology, Department of Die & Mould Design, Seoul National University of Technology, 172 Gongreung 2-Dong, Nowon-Gu, Seoul, 139-743, South Korea, E-mail:
Received: 2003-3-20
Accepted: 2003-7-1
Published Online: 2013-06-03
Published in Print: 2003-12-01

© 2003, Carl Hanser Verlag, Munich

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Fourth of a Series: Pioneering Polymer Industry Developments: The First Continuous Kneading Machines
  5. Screw Extrusion
  6. Prediction of Residence Time Distribution in EZ and KE Element of a Ko-Kneader by using CFD Method
  7. Computational Study of Velocity Field in the KE Element of a Modular Ko-Kneader with CFD Method
  8. Optimization of Sweet Bread Dough Processing Conditions by Twin Screw Extrusion
  9. Experimental Development of Processing Technology for Yuba-like Films Using Twin Screw Extrusion
  10. Die Extrusion
  11. Flow Analyses in a Spiral Mandrel Die Assuming Wall Slip
  12. Effect of Elongational Viscosity on the Flow in a Flat Die
  13. Measuring Polymer Melt Density and Viscosity in Real-time during Extrusion Processes using Ultrasound Sensors Fusion
  14. Film
  15. Scale-up Rule for Double Bubble Tubular Process of PA6 Film
  16. Molding
  17. Analysis of the Morphological Development of PBT/ABS Blends during the Twin Screw Extrusion and Injection Molding Processes
  18. Investigation of the Mechanical Properties and Chemical Resistance of PC/PBT/Impact Modifier Blends
  19. Structure Development in Injection Molding of Isotactic Polypropylene, its Blends, Compounds and Dynamic Vulcanizates
  20. The Flow Behavior of Core Material and Breakthrough Phenomenon in Sandwich Injection Molding
  21. The Flow Behavior of Core Material and Breakthrough Phenomenon in Sandwich Injection Molding
  22. PPS News
  23. PPS News
https://doi.org/10.3139/217.1756

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Fourth of a Series: Pioneering Polymer Industry Developments: The First Continuous Kneading Machines
  5. Screw Extrusion
  6. Prediction of Residence Time Distribution in EZ and KE Element of a Ko-Kneader by using CFD Method
  7. Computational Study of Velocity Field in the KE Element of a Modular Ko-Kneader with CFD Method
  8. Optimization of Sweet Bread Dough Processing Conditions by Twin Screw Extrusion
  9. Experimental Development of Processing Technology for Yuba-like Films Using Twin Screw Extrusion
  10. Die Extrusion
  11. Flow Analyses in a Spiral Mandrel Die Assuming Wall Slip
  12. Effect of Elongational Viscosity on the Flow in a Flat Die
  13. Measuring Polymer Melt Density and Viscosity in Real-time during Extrusion Processes using Ultrasound Sensors Fusion
  14. Film
  15. Scale-up Rule for Double Bubble Tubular Process of PA6 Film
  16. Molding
  17. Analysis of the Morphological Development of PBT/ABS Blends during the Twin Screw Extrusion and Injection Molding Processes
  18. Investigation of the Mechanical Properties and Chemical Resistance of PC/PBT/Impact Modifier Blends
  19. Structure Development in Injection Molding of Isotactic Polypropylene, its Blends, Compounds and Dynamic Vulcanizates
  20. The Flow Behavior of Core Material and Breakthrough Phenomenon in Sandwich Injection Molding
  21. The Flow Behavior of Core Material and Breakthrough Phenomenon in Sandwich Injection Molding
  22. PPS News
  23. PPS News
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