Dr. Udo Anders
Papers # 2012 Barcelona
PVC is a well-established material, globally utilised, in many different applications, such as window profiles, technical profiles, cables and sheets. In Pipes, PVC is used in pressurised potable water applications, as well as sewerage systems, gas piping systems, gutters and fittings. A Global analysis of PVC stabiliser systems in use, for pipe applications, indicated that except North America, where almost exclusively Sn-based stabilisers are used, Pb-based stabilisers have been the dominating system for the past several decades. During recent years, Ca-based stabilisers have been utilised in many regions. In Europe this has now become the most utilised system. The path to where we have arrived involved significant challenges, and it is fair to say that new obstacles appear as the change becomes more advanced. This presentation aims to give an overview of the story so far, recounting practical experience to highlight the challenges seen. Ca-based stabilisers, Alternative stabilisers, Ca/Zn, Ca-organic, Pipes
Related papers
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Author(s) : Dr. Stefan Fokken
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Author(s) : Anders Andtbacka, Frans Alferink, Peter Sejersen
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Author(s) : Adriana Velasquez, Dr. Dane Chang, Dr. Siddharth Athreya
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Author(s) : Dr. Love Pallon, Dr. Karin Jacobsson, Daniel Ejdeholm, Marie Allvar, Rikard Kärrbrant
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Author(s) : Johannes de Bruin, Dr. Bert Dalmolen, Albo van Hateren
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Author(s) : Dr. Anton Vasilenko
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Author(s) : Dr. Gerd Mannebach
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Author(s) : Prof. Dr. Jens Liebhold,
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Author(s) : Dr. Holger Bruening, Detlef Schramm
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Author(s) : Univ.-Prof. DI Dr. mont. Gerald PINTER, DI Florian ARBEITER
Applying scientifically well established and investigated linear fracture mechanic methods (LEFM) the kinetics of the slow crack growth (SCG) on polypropylene layers and coextruded interfaces on multi-layer-pipes could be investigated. Taking effects of ageing and stress relaxation during the service lifetime into...
Author(s) : Dr Chris Howick
Rigid PVC (PVC-U) is a well-established material for pipe systems for drinking water, with use dating back to the 1930s. In order for PVC-U to be used in drinking water systems, manufacturers must comply with all of the relevant regulations. These include self-assessment systems, where manufacturers demonstrate that...
Author(s) : Brigitte Diekhaus, Ralf Mickley, Dr. Henning Stieglitz, Heinrich Dohmann, Dr. Markus Bornemann
The paper offers an overview of systems and components for efficient pipe extrusion, particularly for larger and thick-walled pipes. It introduces several possibilities for lower melt temperatures and internal pipe cooling. Together these systems can significantly reduce sagging and cooling length needed in the line....
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