Our site uses cookies necessary for its proper functioning. To improve your experience, other cookies may be used: you can choose to disable them. This can be changed at any time via the Cookies link at the bottom of the page.


Global PVC Stabiliser Trends for Pipes – Challenges and Practical Experience

 

Papers

Plastic Pipes Conference Association # 2012 Barcelona

Dr. Udo Anders

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

Please note that the whole article content is available on PPCA website only :

Related papers

2021 Amsterdam : DESIGN OF LARGE DIAMETER BURIED PIPES

Author(s) : Anders Andtbacka, Peter Sejersen

In the late nineties a study of the behavior of buried thermoplastics pipes was carried out. The project had input and participants from both the plastic pipe industry as well as from external organizations. Six external leading experts in the field of pipeline design, not necessarily plastics pipes design, have been...

2021 Amsterdam : FIRST USE OF PE100-HT CONDUITS FOR ADVANCING THE CONTAINMENT OF UNDERGROUND HIGH VOLTAGE CABLES

Author(s) : Dr. Holger Brüning, Serge Hascoët, Yann Delanne, Didier Nozahic, Jawdat Mansour, José Santana

RTE operates, maintains and develops the French electricity network, including the High and very High Voltage cable lines. Their network is the largest in Europe and includes over 6400 km of underground HV links operated in 2018. The company is modernizing and developing its network by investing 1.5 billion euros per...

2021 Amsterdam : INVESTIGATION OF THE QUALITY CHARACTERISTICS OF POLYAMIDE 12 PIPE WELDS

Author(s) : M. Eckes & Dr. B. Baudrit, Dr. M. Troughton & D. Wylie, H. van Laak & J. Fritz

Unplasticized polyamide 12 (PA-U12) is increasingly being used in pipe applications, especially in the gas sector. However, the material behavior in the usual quality tests for pipe welds has not yet been thoroughly investigated. For this reason, two research institutes, worked in cooperation with a manufacturer of...

2021 Amsterdam : PRESSURE PIPELINE MADE OF HDPE – DETERMINATION OF REMAINING LIFETIME AFTER 47 YEARS OF OPERATION IN LAKE OSSIACH (CARINTHIA, AUSTRIA)

Author(s) : Ulrich Schulte, Dr. -Ing. Joachim Hessel

In order to protect the Austrian lakes effectively against the discharge of effluent, a 13 km long pressure pipeline made of high density polyethylene was laid on the bottom of Lake Ossiach back in 1971. The DN355 to DN200 pipes were produced from a first generation HDPE-compound. The classification would have been...

2021 Amsterdam : RIGHT STABILIZATION AND QUICK MEASUREMENT OF GEL CONTENT IN PE-XA PIPES

Author(s) : Alireza Sahaf Amin, Dr. Gholamreza Pircheraghi

PE-Xa pipes used in the hot water supply are required for high mechanical strength and high creep resistance at high temperature. Because of the higher cross-link degree of PE-Xa pipes as compared with other crosslinked pipes methods , these pipes which are made by peroxide crosslinking have better performance in the...

2021 Amsterdam : Risk Assessment of Non-Intentionally Added Substances (NIAS) in potable water

Author(s) : Dr Ruediger Liske, Dr Tobias Eltze, Dr Tania Weyland, Marie-Laure Bertet

The migration of NIAS (Non-Intentionally Added Substances) into potable water is a recurring topic for the distribution of cold and warm drinking water and related materialsindustry. These substances are chemical compounds that are present in drinking water contact materials but have not been added during the...

2021 Amsterdam : SUSTAINABLE STABILISER SYSTEMS FOR PVC – 30 YEARS OF CA BASED SOLUTIONS

Author(s) : Dr. Stefan Fokken

NGO pressure and end of life disposal of PVC articles in the EU over 30 years ago, triggered intense discussion about the sustainable use of PVC and its additives. Stabiliser producers and downstream users of PVC stabiliser compounds base upon Lead and Cadmium based stabilisers have developed solutions ultimately...

2018 Las-Vegas : Design of large diameter buried pipes

Author(s) : Anders Andtbacka, Frans Alferink, Peter Sejersen

The behavior of buried plastic pipes is already well described in standards and technical specifications and as well as proven in real life conditions. Plastics pipes in diameters up to around 400 mm are already in use for more than 60 years and pipes with larger diameters for more than 20 years now. All with good...

2018 Las-Vegas : Effect of carbon black, compounding and pipe extrusion on the slow crack growth pent test result

Author(s) : Adriana Velasquez, Dr. Dane Chang, Dr. Siddharth Athreya

This paper studies the PENT results and how they vary based on sample preparation, equipment used, technique to place the sample as well as the number of heating cycles that the resin goes through after it leaves the manufacturing facility including those cycles needed to pre-compound virgin resin with a color...

2018 Las-Vegas : High modulus PP tanks delivers practical & cost effective sewage treatment to rural indonesia

Author(s) : Marc van Loo (Dr.), Constant Van Aerschot, KumHoong Lou

In many parts of rural developing Asia and even some parts of Africa, sewerage from households is often discharged directly to the surrounding. This unfortunate fact means that many waterborne diseases such as cholera, dysentery and typhoid continue to afflict these communities. Numerous efforts from governments,...

2018 Las-Vegas : Molecularly oriented awwa C909 pipe for seismic applications

Author(s) : Richard St-Aubin, Dr. Thomas O’Rourke, Dr. Brad Wham, Blake Berger

Molecularly oriented polyvinyl chloride (PVC-O) pipe has been found to withstand large ground deformation during seismic events without damage. The properties of PVC-O pipe that support this performance have been investigated in a multi-year testing program undertaken at the Geotechnical Lifelines Large Scale Testing...

2018 Las-Vegas : New testing method for electrofusion welds

Author(s) : Dr. Love Pallon, Dr. Karin Jacobsson, Daniel Ejdeholm, Marie Allvar, Rikard Kärrbrant

This work presents the development of the Full Length Tensile Test (FLTT), a method that enables an objective judgement of welding quality of electrofusion welds by measuring the energy to break (J/mm2 ). In this way a brittle, ductile and transitional mode failure can be differentiated without subjective visual...

2016 Berlin : Expanding the application range of high density polyethylene for use as an inner-liner material in reinforced thermoplastic pipe and steel pipe

Author(s) : Johannes de Bruin, Dr. Bert Dalmolen, Albo van Hateren

Normal High Density Polyethylene (HDPE) is commonly used as the fluid contacting element, or the “inner-liner”, in Reinforced Thermoplastic Pipes (RTP) and steel pipes up to 65 ºC. Through a modification of the HDPE polymer matrix, by adding nanoparticles, the E-modulus can be increased. Research shows that...

2016 Berlin : Flexible plastic solution for district heating pipes

Author(s) : Dr. Anton Vasilenko

In today’s world a lot of energy is wasted. More than 50 % of the energy is lost on its way to the customer. The fundamental idea of modern district heating is to recycle heat that otherwise would be lost and to use renewable sources to heat homes. In other words: a market place for green heat that reduces...

2016 Berlin : New PE-RT type II material from innovative catalyst system

Author(s) : Dr. Gerd Mannebach

With a new and innovative catalyst concept it is possible to produce a bi-modal PE-RT Type II material with excellent properties in a single reactor process. The catalyst is based on two different metallocene components, whereas one component doesn’t incorporate any co-monomer and the other component shows a typical...

2016 Berlin : New Potentials of Lightweight Structures for Pipe Extrusion Products – Appliances of Reinforcements from short to endless Fibers

Author(s) : Prof. Dr. Jens Liebhold,

To take the advantages of the excellent properties of fiber-reinforced components even more economically and industrially, new ideas to implement these potentials are in demand. Only with the introduction of fibers in a plastic matrix, the elastic behavior is changed towards to higher stiffness, strength and impact...

2016 Berlin : Polyethylene used in industrial applications at elevated temperatures

Author(s) : Dr. Holger Bruening, Detlef Schramm

Applications at elevated temperatures like cable conduit pipes for high voltage cables, pipelines used in oil industry or in industrial plants offer new possibilities for PE but additional requirements in such applications have to be taken into account. Long term experience in using PE100 pipes with respect to easy...

2016 Berlin : Polypropylene multi-layer-pipes - 100 year lifetime assessment using linear elastic fracture mechanics

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...

2016 Berlin : Review of regulations which ensure the safety of pipe materials: how PVC-U pipes apply

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...

2016 Berlin : The new dimension of pipe extrusion

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....

Members of the Association

BOREALISBOROUGEFormosa Plastics CorporationHanwha TotalEnergiesINEOS O&PIRPCKorea Petrochemical IND. Co., LTD (KPIC)LyondellBasellORLEN UnipetrolPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE