PHD THESIS 2019: C-PVC SHORT-TERM PHYSICAL CHANGE RESEARCH PROGRAM: UNDERSTANDING AND MODELLING
Context :
PVC is a material commonly used in plumbing, with numerous applications for both pressure and drainage systems. C-PVC has additional intrinsic properties, such as its strength and its abilities to withstand high water temperatures. The C-PVC material is a technical compound intended to a long term and hot water application (designed for 50 years), which requires an optimal anticipation of short-term and long-term effects. The sustainability of this system is directly related to the knowledge of its physical and chemical aging process.
The project is funded by ALIAXIS, an international group and leader in the manufacturing and distribution of fluid handling solutions, with more than 100 manufacturing and commercial companies operating over 45 countries. Its extensive portfolio of plastic pipes and fittings products find their way into buildings, civil infrastructure and industrial applications all over the world. ALIAXIS Research and Development (ARD) is the Corporate Research and Innovation Center housing three Expertise Capability Teams: Processing & Materials, Analytical Characterization and Failure Forensics, and Water Management Technologies.
Detailed presentation:
The strategy proposed in this PhD Thesis is based on:
This strategy will be applied to one single C-PVC compound, modifying some formulation parameters, to check whether the origin of short-term behavior of the material is linked to them or not, and if so, how.
PVC is a material commonly used in plumbing, with numerous applications for both pressure and drainage systems. C-PVC has additional intrinsic properties, such as its strength and its abilities to withstand high water temperatures. The C-PVC material is a technical compound intended to a long term and hot water application (designed for 50 years), which requires an optimal anticipation of short-term and long-term effects. The sustainability of this system is directly related to the knowledge of its physical and chemical aging process.
The project is funded by ALIAXIS, an international group and leader in the manufacturing and distribution of fluid handling solutions, with more than 100 manufacturing and commercial companies operating over 45 countries. Its extensive portfolio of plastic pipes and fittings products find their way into buildings, civil infrastructure and industrial applications all over the world. ALIAXIS Research and Development (ARD) is the Corporate Research and Innovation Center housing three Expertise Capability Teams: Processing & Materials, Analytical Characterization and Failure Forensics, and Water Management Technologies.
Detailed presentation:
The strategy proposed in this PhD Thesis is based on:
• Performing experimental tests and building a material database focusing on a better understanding of the effect of properties change based on the material microstructural evolution and its impact on the final properties. Such characterization will be performed at different length scales using available test equipment (SEM, DSC, DMA, tensile machine, ….)
• Developing and validating a macroscopic material model accounting for material changes through internal state variables
This strategy will be applied to one single C-PVC compound, modifying some formulation parameters, to check whether the origin of short-term behavior of the material is linked to them or not, and if so, how.
For more information click "LINK TO ORIGINAL" below.
This opportunity has expired. It was originally published here:
http://www.cemef.mines-paristech.fr/sections/formations/doctorats/pour-postuler/these-cemef-1982