Plastic Pipes Conference Association papers

In this section, you will find a database of all articles presented and published by PPCA in biannual conferences organized by PPCA since 1970.

NEW PE-RT TYPE II MATERIAL FROM INNOVATIVE CATALYST SYSTEM

Author(s) : Dr. Gerd Mannebach 2016 Berlin

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...

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

Author(s) : Prof. Dr. Jens Liebhold, 2016 Berlin

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...

NEW TRENDS IN STABILIZERS FOR PVC PIPE

Author(s) : Mario Berna, Alessandro Tinarelli 2016 Berlin

The PVC pipes are currently manufactured using a wide range of stabilizer systems. European market was historically based on Lead stabilizers that have been entirely replaced by COS (Organic-based and/or Calcium-Zinc) systems thanks to the Voluntary Commitment of the European Stabilizer Producers Association within...

NOVEL POLYOLEFIN SOLUTIONS – INCREASING PRODUCTION RATE OF PIPES AND FITTINGS WITH SUPERIOR PROPERTIES

Author(s) : Antti Tynys, Dongyu Fang, Prashant Nikhade, Mark Yu, Tomi Kangas 2016 Berlin

The need for larger diameter pipes and fittings for in-house heating, plumbing and domestic water systems is pushing the existing materials and processes to their limits. More often final products cannot be produced without penalties either in production rate or in final product quality. This paper discusses...

PE4710 MITERED ELBOW DESIGN JUSTIFICATION BY FINITE ELEMENT ANALYSIS

Author(s) : Gerry Groen, Ernest Lever, Oren Lever 2016 Berlin

A design justification for reinforcement of fabricated Polyethylene elbows is presented. The acceptance criteria is that the average stress in the mitered wall of fabricated elbow shall not exceed the hoop stress in the matching pipe. ASTM and ISO standards have established requirements for the geometry, production...

PENT STUDY OF CROSS-LINKED POLYETHYLENE PIPE RESINS

Author(s) : Carl F. Baker 2016 Berlin

The performance of HDPE resins with regards to slow crack growth has increased dramatically over the past two decades. The most common test method for pipe products is ASTM F1473, Standard test Method for Notch Tensile Test to measure the resistance to Slow Crack Growth of Polyethylene Pipes and Resins (PENT). Results...

PERFORMANCE OF A COUNTER-ROTATING CONTINUOUS MIXER FOR BI-MODAL HIGH DENSITY POLYETHYLENE

Author(s) : Nakagawa Tomokazu, Kazuo Yamaguchi 2016 Berlin

Bi-modal high density polyethylene (HDPE) has become more popular in recent years, because it has both easier processability and higher mechanical strength. The easier processability is brought from low molecular weight component and the higher mechanical strength is brought from high molecular weight component. The...

PIPE BURSTING ASBESTOS CEMENT PIPE IN COMPLIANCE WITH ENVIRONMENTAL PROTECTION AGENCY’S REGULATIONS AND SCIENTIFIC DATA COLLECTION ON THE PROJECT

Author(s) : Edward Alan Ambler, John Matthews, Lawrence Pultz, Ryan Stowe 2016 Berlin

This paper summarizes the design and implementation of the largest asbestos cement pipe bursting project performed to date within the United States. The paper also presents regulatory information required to properly track and document an asbestos cement pipe bursting project while meeting the National Emissions...

POLYETHYLENE PIPES IN HOT CLIMATES – TWO DECADES OF TECHNICAL CHALLENGES

Author(s) : Mohana Murali 2016 Berlin

Polyethylene pipes have been used for over half a century in Europe and North America and just over two decades in the Middle East. A recurring misgiving amongst first time users is the behavior of the pipes in the extreme climatic conditions such as the Arabian Gulf. High temperatures do exist but there are...

POLYETHYLENE USED IN INDUSTRIAL APPLICATIONS AT ELEVATED TEMPERATURES

Author(s) : Dr. Holger Bruening, Detlef Schramm 2016 Berlin

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...

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 2016 Berlin

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...

Polypropylene Pipe: An Evolving Market

Author(s) : Steve Sandstrum, Stefan Dreckoetter, Zak Schultz 2016 Berlin

This paper provides a historical overview of the development of polypropylene (PP) for piping applications. The discussion includes a historical review of each step in the evolutionary trend for PP piping materials over the last 40 years and culminates with a focus on the most recent development in PP piping...

POTENTIALS OF TERAHERTZ TECHNOLOGY FOR THE INSPECTION OF PLASTIC PIPES

Author(s) : Stefan Kremling, Thomas Hochrein, Peter Heidemeyer 2016 Berlin

In plastics industry, the use of terahertz technology opens up opportunities for novel non-destructive and contactless testing applications. For example, the thickness of individual layers of a foamed multilayered plastic pipe can be monitored contactless and continuously during the extrusion process. Furthermore,...

PREDICTING SERVICE LIFE FOR RECYCLED PE MATERIALS VIA THE UNNOTCHED CONSTANT LIGAMENT STRESS (UCLS) TEST

Author(s) : Michael Pluimer, Rick Thomas 2016 Berlin

A new test method was developed to evaluate the stress crack resistance of HDPE materials containing recycled content. The method involves testing un-notched specimens in an elevated temperature bath under a specified stress. The new test method was published in March of 2016 as ASTM F3181, Standard Test Method for...

PREDICTING THE LIFETIME OF PE50 GAS PIPES UNDER POINT LOADING

Author(s) : Frans Scholten, Ernst van der Stok 2016 Berlin

The residual quality of first generation PE50 gas pipes, installed in Netherland between 1961 and 1979, is still remarkably good. The only premature failures of a few PE50 pipes were exclusively caused by point loads. When under point loading, they started failing in practice after 8 to 26 years, in a brittle manner....

PVC4Pipes Training and Presentation Packages - 2016

Author(s) : Jean-Francois Greiner, Steve Tan, Alastair Walmsley 2016 Berlin

PVC4Pipes, a non-profit association founded in Brussels in 2003, whose main purpose is to support and stimulate the use of PVC pipe systems, has recognized the need to improve the knowledge and the perception in the market of the quality and environmental sustainability of PVC pipe systems. So a series of...

QUALITY AND PERFORMANCE ASSESSMENT OF IN-PLANT AND POST-USE PE RECYCLATES FOR PIPE APPLICATIONS

Author(s) : Reinhold W. Lang, Patrick R. Bradler, Joerg Fischer, Dominik Poehlmann, Steven Schmidt, Ansgar Niehoff 2016 Berlin

In the present paper, a highly effective test and characterization concept for polymer recyclate materials is proposed and validated. Based on the proposed methods, a study was carried out to investigate the potential of in-plant and post-use PE recyclates from various applications to be utilized in PE recyclate...

QUALITY CONTROL TESTING OF JOINTS IN GRAVITY FLOW PLASTIC PIPES

Author(s) : David Becerril García, Jacinto Cortés-Pérez, Ian D. Moore 2016 Berlin

Joint performance of joints in gravity flow buried pipelines is very important since joint failure could produce structural or service limits to the system. Standards have been developed to evaluate that joints have the necessary structural and leakage capacities which specify test methods that are not clear and do...

REACHING NEW FRONTIERS AND MAINTAINING MOMENTUM IN THE PLASTICS PIPING MARKET

Author(s) : White G. Jee 2016 Berlin

The Lake Charles Chemicals Project (LCCP) is a new chemicals plant facility and as a result, corrosion and compatibility as well as cost play a very important role in the selection of piping components. For the purpose of this case study, the focus will be the high density polyethylene (HDPE) piping system used in the...

RECENT PRACTICAL APPLICATIONS IN PIPELINES WITH ADVANCED GRADES OF POLYOLEFINS

Author(s) : Marco Michelotti, Raffaella Sartini 2016 Berlin

Polyolefins piping systems have greatly evolved over the last decade through both material innovation and extrusion technologies which have undergone significant advancement. Though high density polyethylene and polypropylene pipes are currently estimated as the best solution for a safe fluid supply, various compounds...



Members of the Association

BOREALISBOROUGEINEOS O&PIRPCKorea Petrochemical IND. Co., LTDLyondellBasellPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE
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